数字压力传感器


June 8, 2010
PRELIMINARY
MS5801-01BA Altimeter Module
PERFORMANCE SPECIFICATIONS (CONTINUED)
PRESSURE OUTPUT CHARACTERISTICS (VDD = 3 V, T = 25°C UNLESS OTHERWISE NOTED)
Parameter Supply voltage Storage temperature Overpressure Maximum Soldering Temperature
Symbol VDD TS Pmax
Tmax
ESD rating
Latch up
Conditions
100m, ISO2281 40 sec max Human Body Model JEDEC standard No 78
Parameter Operating Pressure Range
Extended Pressure Range
Conditions
Prange
Full Accuracy
Pext
Linear Range of ADC
Min. 300
10
Typ.
Max 1100
1300
at 25°C, 700..1100 mbar
Peak supply current Standby supply current VDD Capacitor
Symbol VDD T
IDD
Conditions
OSR
4096
2048
1024
512
256
during conversion
at 25°c
From VDD to GND
Min. 1.8 -40
DIGITAL INPUTS (CSB, I2C, DIN, SCLK)
Parameter Serial data clock Input high voltage Input low voltage Input leakage current
Symbol SCLK VIH VIL Ileak25°C
100
Typ. 3.0
+25 12.5 6.3 3.2 1.7 0.9
1.4 0.02
Max
Unit
3.6
V
+125
°C
µA
mA
0.14
µA
nF
ANALOG DIGITAL CONVERTER (ADC)
Parameter Output Word
Conversion time
Symbol Conditions
mbar/yr
SDO SCLK
Temperature
Min Typ Max Unit
Range
-40
+125 °C
Resolution
<0.01
°C
Accuracy
GND
-0.8
+0.8 °C
Notes: (1) Oversampling Ratio: 256 / 512 / 1024 / 2048 / 4096
Min.
OSR tc
4096
7.40
2048
3.72
1024
1.88
512
ቤተ መጻሕፍቲ ባይዱ
0.95
256
0.48
Typ. 24
8.22 4.13 2.08 1.06 0.54
Max
Unit
bit
9.04
4.54
2.28
ms
1.17
0.60
DA5801-01BA_005 000058011532 ECN1371
2/16
TECHNICAL DATA
Sensor Performances (VDD = 3 V)
Pressure
Min Typ Max Unit
Range
10
1300 mbar
ADC
24
bit
Resolution (1)
0.065 / 0.042 / 0.027 / 0.018 / 0.012
mbar
Accuracy 25°C, 750 to 1100 mbar
FUNCTIONAL BLOCK DIAGRAM
SENSOR +IN -IN
Meas. MUX PGA
ADC
dig. Filter
Digital Interface
SGND
Sensor Interface IC
Memory (PROM) 128 bits
DA5801-01BA_005 000058011532 ECN1371
Min.
Typ.
Max
Unit
-0.8
+0.8
-2.0
+2.0
°C
-4.0
+4.0
Maximum error with supply voltage
VDD = 1.8 V … 3.6 V
-0.5
+0.5
°C
Resolution RMS
OSR
4096
0.002
2048
0.003
1024
0.005
°C
512
0.008
256
0.012
DA5801-01BA_005 000058011532 ECN1371
3/16
June 8, 2010
PRELIMINARY
MS5801-01BA Altimeter Module
PERFORMANCE SPECIFICATIONS (CONTINUED)
Unit mbar mbar
mbar
mbar
mbar mbar/yr
mbar
TEMPERATURE OUTPUT CHARACTERISTICS (VDD = 3 V, T = 25°C UNLESS OTHERWISE NOTED)
Parameter Absolute Accuracy
Conditions at 25°C -20..85°C -40..85°C
PRELIMINARY
MS5801-01BA Altimeter Module
• High resolution module, 10cm • Fast conversion down to 1 ms • Low power, 1 µA (standby < 0.15 µA) • Integrated digital pressure sensor (24 bit ∆Σ ADC) • Supply voltage 1.8 to 3.6 V • Operating range: 10 to 1300 mbar, -40 to +125 °C • I2C and SPI interface up to 20 MHz • No external components (Internal oscillator) • Excellent long term stability • Hermetically sealable for outdoor devices
DESCRIPTION
The MS5801-01BA is a new generation of high resolution altimeter sensors from MEAS Switzerland with SPI and I2C bus interface. It is optimized for depth meters and altimeters with an altitude resolution of 10 cm. The sensor module includes a high linearity pressure sensor and an ultra low power 24 bit ∆Σ ADC with internal factory calibrated coefficients. It provides a precise digital 24 Bit pressure and temperature value and different operation modes that allow the user to optimize for conversion speed and current consumption. A high resolution temperature output allows the implementation of an altimeter/thermometer function without any additional sensor. The MS5801-01BA can be interfaced to any microcontroller. The communication protocol is simple, without the need of programming internal registers in the device. The gel protection and antimagnetic stainless steel cap allows the use in 100m waterproof altimeter/compass watches. This new sensor module generation is based on leading MEMS technology and latest benefits from MEAS proven experience and knowhow in high volume manufacturing of altimeter modules, which have been widely used for over a decade. The sensing principle employed leads to very low hysteresis and high stability of both pressure and temperature signal.
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亚克勒夫GC35数字压力传感器用户说明书

亚克勒夫GC35数字压力传感器用户说明书

PIP #: TR-PI-105Applicable to:GC35PROGRAMMING PLANT AIR LINE PRESSURE CONTROL ON THE GC35 INDICATING PRESSURE TRANSMITTERThe GC35 Digital Pressure Transmitter is compact and flexible with many usages. It can be easily programmed to monitor and control plant air line pressure. The GC 35 can be acquired with many different ranges but for this application a transmitter with 0 to 150 psi range shall be selected, 4-20 mA analog output, and one switch PNP.Figure 1 - GC35 Pressure TransmitterPlant Line Compressor Pressure Control Example:This example demonstrates the control of a plant air line compressor application with a full loaddischarge pressure of 100 psi and an unload discharge pressure of 110 psig by controlling the 4-20 mA output signal with a programmable regulator. Also, to shut down the compressor and activate an audible warning alarm if line pressure exceeds 115 psi by using an external relay normally opened to turn on the audible alarm and normally closed to shut down the compressor.Figure 2 – GC35 Pressure Transducer Installation ExampleInstallation:Connect transmitter, analog output, compressor shutdown and audible warning buzzer switches per application, diagrams below and manual instructions.Figure 3 – GC35 Pressure Transducer WiringFigure 4 – GC35 Pressure Transducer Switch and Analog Output WiringCOMPRESSED AIRPlant Line Compressor Pressure Control Settings Method:Procedure to program the GC35 transmitter to control plant air line pressure. Offset analog output from 0 psi to 100 psi. That, is 66.7 % of full range corresponding to 100 psi (4 mA). Scale down the upper range from 150 psi to 110 psi. 73.3% of full scale is equivalent to 110 psi (20 mA). Subsequently, set switches set point and dead bands.GC35 Transmitter Function Setting Method:∙ Press and hold MODE button for more than three seconds to get into program mode.∙ Press UP or Down arrow to make changes.∙ Press and release MODE button to select changes and to walk through the menu.∙ Continue to step-1 after power-on message.∙ Press and hold MODE button for more than three seconds to return tomeasuring mode.Step 1∙ CAP To select hysteresis (HYS) or Window comparator (yin). ∙ Select HYS to control analog output. ∙ Press UP or Down arrow to display HYS.∙ Press and release MODE button to select and move to the next step.Step 2∙ oPC To select switch type (NPN or PNP).∙ It is a matter of preference. PNP switch shall be used for thisapplication.∙ Press UP or Down arrow to display PNP.∙ Press and release MODE button to select and move to the next step.Step 3∙ FiL To enter filter selection. Filter selection, there are five filterselections (F1 to F5).∙ Use the filter function to improve analog output and difficult to readdisplay if pressure oscillates.∙ Press UP or Down arrow until F1 is displayed (pressure fluctuation isnot anticipated).∙ Press and release MODE button to select and move to the next step.Step 4∙ ECo To turn ON or OFF power saver.∙ Press Up or Down arrow until EoF is displayed (power saver off). ∙ Press and release MODE button to select and move to the next step.Step 5∙ LrG To select ring LED light. There are two options Lr0 to turn off ringlight or Lr1 to turn on ring light.∙ Press Up or Down arrow until Lr1 is display.∙ Press and release MODE button to select and move to the next step.Step 6∙ Uni To select units (arbitrary or psi).∙ Press Up or Down arrow until PSI is displayed.∙ Press and release MODE button to select and move to the next step.Step 7∙ A-L To enter analog output zero reference corresponding to 4 mA. ∙ The operational range is from 100 to 110 psi. Therefore, set 100 psias the zero reference 4 mA analog output (66.7% of full range). ∙ Press Up or Down arrow until 66.7 is displayed.∙ Press and release MODE button to select and move to the next step.Step 8∙ A-H To enter span analog output reference corresponding to 20 mA. ∙ The operational range is from 100 to 110 psi. Therefore, set 110 psias the span 20 mA analog output (73.3% of full range). ∙ Press UP or Down arrow until 73.3 is displayed.∙ Press and release MODE button to select and move to the next step.GC35 Transmitter Switch Set Point and Dead Band Settings Method:∙ Press and hold MODE button less than three seconds to get into program mode.∙ Press UP or Down arrow to make changes.∙ Press and release MODE button to select changes and to move to the next step.∙ Continue to step-1 after once in program mode.∙ Press and hold MODE button for more than three seconds to return to measuring mode.Step 1∙ US1 To select in use (USE) or not in use (noU).∙ Press UP or Down until USE is displayed to configure output switch. ∙ Press and release MODE button to select and move to the next step.Step 2∙ A1 To enter output 1 switch set point. ∙ Set switch to change state at 115 psi. ∙ Press UP or Down until 115.0 is displayed.∙Press and release MODE button to select and move to the next step.Step 3∙ B1 To enter dead band.∙ Set 5 psi dead band to deactivate at 110 psi. ∙ Press UP or Down until 5.0 is displayed.∙Press and release MODE button to select and move to the next step.Step 4∙ On1 To delay switch turn on.∙ Delay switch turn on shall not be used for this application. ∙ Press Up or Down arrow until 0.00 is displayed.∙ Press and release MODE button to select and move to the next step.Step 5∙ OF1 To delay switch turn off.∙ Delay switch turn off shall not be used for this application. ∙ Press Up or Down arrow until 0.00 is displayed.∙Press and release MODE button to select and move to the next step.Step 6∙ SAv To save set point, dead band, and on/off time delay. ∙Set point, dead band, and on/off time delay can be stored onstorage S-1 or S-2 (save set point, dead band, and on/off time delay on S1).∙ Press UP or Down arrow until S-1 is displayed.∙ Press and release MODE button to select and move to the next step.Step7∙Lod To load set point, dead band, and on/off time delay.∙Load set point, dead band, and on/off time delay can store onstorage L-1 or L-2 (load set point, dead band, and on/off timedelayonL1).∙Press UP or Down arrow until L-1 is displayed.∙Press and release MODE button to select and move to the next step.Step8∙LoP Loop check mode allows program and analog output verificationwith the transmitter pressurized or non-pressurized. It simulates theprocess and allows for troubleshooting.∙Press Up or Down arrow to simulate pressure values.∙After verification press and hold MODE button for more than threeseconds to return to measuring mode.Function Verification:The GC35 loop-check allows program, switch and analog output verification with the transmitterpressurized or non-pressurized.Analog Output Test:Confirm analog output wiring per figure 3 and 4 diagrams or installation and maintenance instructions.Analog output can be tested during loop check mode or measurement mode. Change loop check value or apply equivalent pressure to test the analog output (see results below for reference).∙Connect amp-meter per manual instructionsor diagram above.∙Press the Up or Down arrow until 100.0 isdisplayed or apply 100 psi.∙Verify amp meter reading (4.00 mA).∙100 psi corresponds to 0% FS analog signal(4 mA at 100 psi).Switching Verification:Ensure switch wiring per figure 3 and 4 diagrams or installation & maintenance instructions. Switch verification can be tested during measurement mode or loop check. Change loop check value or apply equivalent pressures (see results below for reference).∙Press the Up or Down arrow until 105.0 isdisplayed or apply 105 psi.∙Verify amp meter reading (12.00 mA).∙105 psi corresponds to 50% FS analog signal(12 mA at 105 psi).∙Press the Up arrow until 110.0 is displayedor apply 110 psi.∙Verify amp meter reading (20.0 mA).∙110 psi corresponds to 100% FS analogsignal (20 mA at 110 psi).∙ A 290 ohms resistor shall be use as theswitch load to verify switch. Wire switch permanual instructions or figure above.∙Press the Up or Down arrow until 100.0 isdisplayed or apply 100 psi.∙Switch is in normal state (OFF)∙Place voltmeter leads across resistor and verify voltage reading (0 V dc).∙Press the Up arrow until 115.0 is displayed or increase pressure up to 115 psi.∙Switch turns ON.∙Verify voltmeter reading (28 VDC).∙External relay energizes.∙Relay normally closed switch opens - compressor shuts down.∙Relay normally open closes - audible alarm turns ON.∙Press the Down arrow until 110.0 is displayed or decrease pressure to 110 psi. ∙Verify voltage reading (0 V dc).∙Switch changes to normal state (OFF).。

压力传感器电路原理

压力传感器电路原理

压力传感器电路原理压力传感器是一种能够测量物体受力程度的装置,它的应用十分广泛,包括工业、医疗、汽车等领域。

压力传感器电路是实现压力传感器功能的关键部分,下面将介绍压力传感器电路原理及其工作过程。

一、压力传感器电路的基本原理压力传感器电路一般由传感器元件、信号调理电路和输出电路组成。

传感器元件是测量压力的关键部分,它通常由特殊材料制成,能够随着外界压力的变化而改变一些电学性质,如电阻、电容等。

信号调理电路负责将传感器元件的电学性质转化为可测量的电信号,同时对信号进行放大、滤波和线性化处理。

输出电路将经过信号调理的电信号转化为可供外部设备读取的模拟信号或数字信号。

二、压力传感器电路的工作过程压力传感器电路的工作过程可以分为以下几个步骤:1. 传感器元件受到外界压力的作用,其电学性质发生变化。

以电阻式压力传感器为例,当受力后,电阻值会发生变化。

2. 传感器元件的变化信号经过信号调理电路的放大、滤波和线性化处理。

放大是为了增强传感器元件的微弱信号,滤波是为了去除杂散信号和噪声,线性化是为了使输出信号与输入信号呈线性关系。

3. 经过信号调理的信号进入输出电路,输出电路将其转化为可供外部设备读取的模拟信号或数字信号。

模拟信号一般经过模数转换器转化为数字信号,数字信号可以通过串口、USB等方式传输给计算机或其他设备。

三、压力传感器电路的特点和应用1. 精度高:压力传感器电路采用了精密的传感器元件和信号调理电路,能够实现高精度的压力测量。

2. 可靠性好:压力传感器电路经过严格的测试和校准,能够在各种恶劣环境下稳定工作。

3. 响应速度快:压力传感器电路的信号处理速度较快,可以实时监测压力变化。

压力传感器电路在工业自动化、航空航天、医疗设备、汽车等领域有着广泛的应用。

在工业自动化中,压力传感器电路可以用于测量液体或气体的压力,控制和监测生产过程。

在医疗设备中,压力传感器电路可以用于测量血压、呼吸机等设备的压力。

在汽车中,压力传感器电路可以用于测量轮胎的气压,以提醒驾驶员及时充气。

压力传感器知识点总结

压力传感器知识点总结

压力传感器知识点总结一、压力传感器的概念及分类压力传感器是一种能够将物体外部施加的压力转变成电信号输出的装置。

它可以将压力大小转化为电信号输出,通常用于测量液体、气体或固体的压力。

根据测量原理和测量对象的不同,压力传感器可以分为多种类型,常见的有压阻式压力传感器、压力变送器、电容式压力传感器和压电式压力传感器等。

1. 压阻式压力传感器压阻式压力传感器是利用压阻效应来测量被测压力的装置。

当被测压力作用在敏感元件上时,敏感元件发生形变,从而改变了电阻值。

通过检测电阻值的变化,就可以得到被测压力的大小。

压阻式压力传感器的优点是价格低廉,输出信号稳定,但灵敏度较低,精度一般较低。

2. 压力变送器压力变送器也是一种常见的压力传感器,它一般由感压元件和信号处理电路组成。

感压元件将被测压力转化为位移,再由信号处理电路将位移信号转化为电信号输出。

压力变送器具有输出信号稳定、精度高、灵敏度高等优点,广泛应用于工业自动化领域。

3. 电容式压力传感器电容式压力传感器是利用被测压力作用下的电容值变化来测量压力大小的装置。

当被测压力作用在感应体上时,感应体发生形变,从而改变了电容值。

通过检测电容值的变化,就可以得到被测压力的大小。

电容式压力传感器具有灵敏度高、精度高的特点,但价格较高。

4. 压电式压力传感器压电式压力传感器是利用压电效应来测量被测压力的装置。

当被测压力作用在压电晶体上时,压电晶体产生电荷,从而产生电压信号输出。

压电式压力传感器具有输出稳定、精度高、频率响应快的优点,但价格较高。

二、压力传感器的工作原理1. 压阻式压力传感器的工作原理压阻式压力传感器是利用压阻效应来测量被测压力的装置。

当被测压力作用在敏感元件上时,敏感元件发生形变,从而改变了电阻值。

通过检测电阻值的变化,就可以得到被测压力的大小。

2. 压力变送器的工作原理压力变送器一般由感压元件和信号处理电路组成。

感压元件将被测压力转化为位移,再由信号处理电路将位移信号转化为电信号输出。

fsr压力传感器技术手册

fsr压力传感器技术手册

fsr压力传感器技术手册FSR 压力传感器(Force Sensing Resistor,力敏电阻)是一种具有出色性能和广泛应用的压力传感器。

它通过测量电阻值的变化来感应外界的压力变化,从而实现对压力的测量。

以下是一份FSR 压力传感器技术手册的大致内容:一、FSR 压力传感器简介1. 工作原理:FSR 压力传感器是一种基于压阻效应的传感器,当受到压力作用时,其电阻值会发生明显变化。

通过测量这种变化,可以获得压力的大小。

2. 特点:FSR 压力传感器具有高灵敏度、高线性度、良好的重复性和稳定性,适用于各种压力测量场景。

二、FSR 压力传感器的分类1. 按结构分类:FSR 压力传感器可分为薄膜型、硅膜型、陶瓷型等不同类型。

2. 按输出信号分类:FSR 压力传感器可分为模拟输出型和数字输出型。

三、FSR 压力传感器的主要性能指标1. 灵敏度:FSR 压力传感器的灵敏度指受压力变化引起的电阻变化率。

灵敏度越高,压力传感器的测量范围越大。

2. 线性度:FSR 压力传感器的线性度指传感器输出与输入压力之间的线性关系。

线性度越好,传感器的测量精度越高。

3. 精度:FSR 压力传感器的精度指传感器测量结果与真实值之间的偏差。

精度越高,传感器的可靠性越好。

4. 响应时间:FSR 压力传感器的响应时间指传感器输出信号达到90% 峰值的时间。

响应时间越短,传感器对压力变化的反应速度越快。

5. 工作温度范围:FSR 压力传感器的工作温度范围指传感器在正常工作条件下能稳定运行的温度范围。

工作温度范围越宽,传感器的适应性越强。

四、FSR 压力传感器的应用领域1. 电子设备:FSR 压力传感器广泛应用于电子设备中,如智能手机、平板电脑、笔记本等,实现对触摸屏、按键等部件的压力检测。

2. 汽车电子:FSR 压力传感器在汽车电子领域中的应用日益广泛,如汽车安全气囊、座椅调节器、车窗升降等系统。

3. 工业自动化:FSR 压力传感器在工业自动化领域中具有广泛应用,如压力控制系统、机器人抓取装置等。

德国MAXAIR 数字式压力传感器开关表选型指南

德国MAXAIR 数字式压力传感器开关表选型指南

警告
请对气缸安装速度控制阀
规格范围之外的用途、负荷电流、电压、温度、冲击、环 境等会形成破坏或成为动作不良的原因。
请绝对不要在氧气、腐蚀性、可燃性气体、腐蚀性 流体中使用。
请绝对不要在爆炸性气体环境中使用。
压力开关不是防爆构造。在爆炸性气体环境中使用的场合, 有可能引起爆炸灾害,因此请绝对不要使用。
5 请务必遵守下页以后的警告与注意事项。
˙在下面所示的注意事项中,安全注意事项的等级按“危险”、“警告”、“注意”三个级别进行分类。
危险: 如果进行了错误操作,可能会发生死亡或者重伤的危险情况,并且危险发生时的紧迫性
ʢDANGERʣɹ(迫切程度)较高的情况。
警告: 如果进行了错误操作,可能会发生死亡或者重伤的危险情况。
在传感器安装部位附近使用噪音发生源元件(开关式减压 阀、转换器电机等)的场合,元件的机架接地端子(FG) 请务必进行接地。
电子式元件的配线请远离强磁场。 电子式元件的配线请使用屏蔽线连接。 屏蔽线请在电源侧接地。
如吹气那样,将二次侧控制压力向大气开放的场合,有时会 因吹气条件、配管条件而发生压力的变动。虽然麻烦,但还 是请按照实际使用条件进行测试或咨询本公司。
设备、娱乐设备、紧急切断回路、压机、制动回路、用于安全保障的设备等。 ˔2 可能会对人员和财产造成巨大影响,特别是对安全性有较高要求的用途等方面。
3 有关装置设计的安全性,请遵守团体标准和法规等。
ISO4414、(气动系统通则)、 高压气体保安法、劳动安全卫生法以及其他的安全规则。
4 在没有确认安全的情况下,请绝对不要使用本产品以及拆卸配管·元件。
禁止将产品设置在具有密封性的某种控制箱或房间 内。
因为在其它事故发生的时候,流体泄漏的场合,会使密封 空间的内压发生变化,很危险。因此,必须在油内压限制 的安全装置的控制箱或与外界大气的压力差小的房间内才 能使用。

数字压力传感器的构成

数字压力传感器的构成

数字压力传感器的构成
数字压力传感器是一种用于测量气体或液体压力的装置,它可
以将压力转换成电信号输出。

数字压力传感器的构成包括压力传感
元件、信号处理电路和数字输出接口。

1. 压力传感元件,数字压力传感器的核心部件是压力传感元件,它通常采用压阻式、压电式或电容式传感器。

压阻式传感器利用压
力改变电阻值来测量压力;压电式传感器利用压力改变晶体的电荷
来产生电压信号;电容式传感器则是利用压力改变电容值来测量压力。

这些传感元件能够将压力信号转换成电信号。

2. 信号处理电路,传感元件输出的电信号需要经过信号处理电
路进行放大、滤波和线性化处理,以提高信噪比和准确度。

信号处
理电路还可以对传感元件的输出进行校准和温度补偿,以确保传感
器在不同环境条件下的稳定性和准确性。

3. 数字输出接口,经过信号处理的电信号最终会通过数字输出
接口以数字信号的形式输出,通常采用I2C、SPI、UART等数字通信
协议。

这样的设计可以方便传感器与微控制器、嵌入式系统等数字
设备进行通信和数据传输。

总的来说,数字压力传感器通过压力传感元件将压力转换成电信号,经过信号处理电路进行处理,最终通过数字输出接口输出数字信号。

这种构成使得数字压力传感器具有高精度、稳定性和可靠性,广泛应用于工业自动化、汽车电子、医疗设备等领域。

德国制造的4位数字数字显示压力传感器说明书

1:4-digit alphanumeric display 2:LEDs3:Programming buttonMade inGermanyProduct characteristics Combined pressure sensor ConnectorProcess connection:G 1A /Aseptoflex Vario Display units:bar,psi,MPa,%of the span Function programmable2-wire connection technology:analogue output3-wire connection technology:2outputsOUT1=switching outputOUT2=switching output or analogue output 4-digit alphanumeric displayMeasuring range:-1.00...10.00bar /-14.5...145.0psi /-0.100...1.000MPa Application Type of pressure:relative pressureHygienic systems,viscous media and liquids with suspended particlesLiquids and gasesApplication5MPa 725psi 50bar Pressure rating 15MPa 2175psi 150bar Bursting pressure min.5MPa725psi50barMAWP (for applications according to CRN)-25...125(145max.1h)Medium temperature [°C]Electrical data 2wires DC /3wires DC PNP/NPNElectrical design 20...32DC (2L)/18...32DC (3L)Operating voltage [V] 3.6...21(2L)/<45(3L)Current consumption [mA]>100(500V DC)Insulation resistance[MΩ]III Protection classyesReverse polarity protection Outputs 2-wire connection technology:analogue output3-wire connection technology:2outputsOUT1=switching outputOUT2=switching output or analogue outputOutput1x normally open /normally closed programmable +1x normally open /normallyclosed programmable or 1x analogue (4...20/20...4mA,scalable)Output function ---(2L)/250(3L)Current rating [mA]---(2L)/<2(3L)Voltage drop[V]pulsed Short-circuit protection yesOverload protection ---(2L)/125(3L)Switching frequency [Hz]I:4...20mA (Ineg:20...4mA)Analogue output 300(2L)/max.(Ub -10V)x 50(3L)Max.load[Ω]Measuring /setting range -0.100...1.000MPa -14.5...145.0psi -1.00...10.00bar Measuring range Setting range -0.098...1.000MPa -14.2...145.0psi -0.98...10.00bar Set point,SP -0.100...0.998MPa -14.5...144.7psi -1.00...9.98bar Reset point,rP-0.100...0.750MPa -14.5...108.7psi -1.00...7.50bar Analogue start point,ASP 0.150...1.000MPa21.8...145.0psi1.50...10.00barAnalogue end point,AEP 0.001MPa0.1psi0.01barin steps of SP1=2.50bar;rP1=2.30bar SP2=7.50bar;rP2=7.30bar ASP =0.00bar;AEP =10.00barFactory settingAccuracy /deviations Accuracy /deviations(in %of the span)Turn down 1:1<±0.2Switch point accuracy <±0.2Characteristics deviation *)<±0.15Linearity <±0.15Hysteresis <±0.1Repeatability **)<±0.1Long-term stability ***)Temperature coefficients (TEMPCO)in the temperature range 0...70°C (in %of the span per 10K)<±0.05Greatest TEMPCO of the zero point <±0.15Greatest TEMPCO of the span Reaction times 1(2L)/0.5(3L)Power-on delay time [s]---(2L)/3(3L)Min.response time switching output[ms]0.00...30.00Damping for the switching output (dAP)[s]0.01...99.99Damping for the analogue output (dAA)[s]45(2L)/7(3L)Step response time analogue output[ms]yesIntegrated watchdog Interfaces IO-Link Device COM2(38.4kBaud)Transfer type 1.0IO-Link revision 157d /00009D hIO-Link Device ID no profile Profiles yes SIO modeA Required master port type 1Process data analogue 2Process data binary 2.3Min.process cycle time [ms]Environment -25...80Ambient temperature [°C]-40...100Storage temperature [°C]IP 67/IP 68/IP 69KProtection Tests /approvals EMCDIN EN 61000-6-2DIN EN 61000-6-3Shock resistance 50g (11ms)DIN EN 60068-2-27:Vibration resistance 20g (10...2000Hz)DIN EN 60068-2-6:160MTTF[Years]Mechanical data G 1A /Aseptoflex VarioProcess connection ceramics (99.9%Al2O3);PTFE;stainless steel 316L /1.4435;surfacecharacteristics:Ra <0.4/Rz 4Materials (wetted parts)stainless steel 316L /1.4404;FPM;PTFE;PBT;PEI;PFAHousing materials 100million Switching cycles min.0.313Weight[kg]Displays /operating elements DisplayLED green Display unit LED yellowSwitching status 4-digit alphanumeric display Function display 4-digit alphanumeric displayMeasured values Electrical connection M12connector;Gold-plated contactsConnection Wiring1connection for2-wire operation2connection for3-wire operation3connection for IO-Link parameter setting(P=communication via IO-Link)RemarksRemarks(2L)=value for2-wire operation(3L)=value for3-wire operation*)linearity,incl.hysteresis and repeatability;(limit value setting to DIN16086)**)with temperature fluctuations<10K***)in%of the span per year1Pack quantity[piece]ifm electronic gmbh•Friedrichstraße1•45128Essen—We reserve the right to make technical alterations without prior notice.—GB—PI2794—16.04.2013。

德国MAXAIR 数字式压力传感器开关表选型指南


在电源上使用市售的开关电源的场合,请务必使机架 的接地端子(F.G.)接地。
注意
使用请避开阳光直射、或沾有水、油的场合。 使用请避开蒸汽、灰尘多的环境。
请注意不要接触稀释剂等有机溶剂和注意不要直接接 触水、油、油脂。
请不要将通针等放入压力气口。否则可能破损膜片, 导致不能正常动作。
在强磁场中,有时性能不能得到满足。
5 请务必遵守下页以后的警告与注意事项。
˙在下面所示的注意事项中,安全注意事项的等级按“危险”、“警告”、“注意”三个级别进行分类。
危险: 如果进行了错误操作,可能会发生死亡或者重伤的危险情况,并且危险发生时的紧迫性
ʢDANGERʣɹ(迫切程度)较高的情况。
警告: 如果进行了错误操作,可能会发生死亡或者重伤的危险情况。
警告
1 产品是以一般产业机械用零部件为对象,进行设计和生产的。 因此,请由具有充分知识和经验的人员进行操作和使用。
2 请在产品固有的规格范围内使用。
在本产品规格范围外使用时,或在室外,以及下述条件和环境中使用时,请向本公司确认。另外,请绝对不 要进行产品改造或加工。 ˔1 用于下述对安全性有所要求的用途时:原子能、铁道、航空、车辆、医疗设备、直接接触饮料·食品等的
ʢWARNINGʣ
注意: 如果进行了错误操作,可能会发生轻伤或者仅仅产生物质上的损失时的危险状态。
ʢCAUTIONʣ
另外,“注意”中所记载的事项,可能会因状况而导致严重后果。所记载的内容都非常重要,请务必 遵守。
空压元件(电子式压力开关、传感器)
为了安全地使用本产品
请务必在使用之前阅读。
设计·选定时
接插件针脚配置图
接插件针脚编号
端子名称
比较输出1

数字压力计工作原理

数字压力计工作原理
压力传感器的种类很多,从压力传感器的结构和工作原理上分,可以分为以下几种:
(1)弹簧式:这种类型的压力传感器,是通过一对相互连接的弹性元件(即弹簧管)在外力作用下产生变形,通过弹性元件变形产生的力与位移成正比,再经过放大器放大,驱动位移计中的敏感元件(膜片),从而显示出被测压力。

(2)活塞式:这种类型的压力传感器是利用一种被测介质(通常为水)所产生的浮力使活塞产生一定位移,通过位移计中敏感元件(膜片),从而显示出被测介质的压力。

(4)膜片式:这种类型的压力传感器是利用一种液体对膜片产生压力,从而使膜片产生一定变形并使膜片两侧产生压力差来显示被测压力。

(5)其他类型:这种类型的压力传感器还包括:薄膜式、电容式和磁致伸缩式等。

—— 1 —1 —。

GC35重量级数字压力传感器安装与维护指南说明书

Installation and Maintenance Instructions for GC35 Heavy Duty Digital Pressure SensorVersion 1.0 5/11© 2011 Ashcroft Inc. 250 East Main Street, Stratford, CT 06614 USA T el: 203-378-8281, Fax: 203-385-0402 All sales subject to standard terms and conditions of sale.I&M011-10172 . Rev A 5/11CONTENTSCAUTION (4)1. SPeCIfICATIONS (5)2. DIMeNSION DrAwINGS (6)3. INSTAllATION (7)4. wIrING............................................................................................................................7-85. NOISe PreVeNTION (9)6. STOrAGe (9)7. MAINTeNANCe (9)8. MeNU NAVIGATION......................................................................................................9-109. fUNCTION SeTTING MODe..........................................................................................10-1210. SwITCH SeTTING MODe..............................................................................................12-1311. SwITCH OPerATION......................................................................................................14-1512. OTHer fUNCTIONS (15)13. errOr DISPlAY (16)14. TrOUBle SHOOTING (17)15. MAINTeNANCe & wArrANTY (18)WARNING! READ BEFORE INSTALLATION1. GENERAL:A failure resulting in injury or damage may be caused by e xcessive overpressure, exces-sive vibration or pressure pulsation, excessive instrument temperature, corrosion of the pressure containing parts, or other misuse. Consult Ashcroft Inc., Stratford, Connecticut,USA before installing if there are any questions or concerns.2. OVERPRESSURE:Pressure spikes in excess of the rated overpressure capability of the transducer may cause irreversible electrical and/or mechanical d amage to the pressure measuring and containing elements.fluid hammer and surges can destroy any pressure transducer and must always be avoided. A pressure snubber should be installed to eliminate the damaging hammer effects. Fluid hammer occurs when a liquid flow is suddenly stopped, as with quick closing solenoid valves. Surges occur when flow is suddenly begun, as when a pump is turned on at full power or a valve is quickly opened.liquid surges are particularly damaging to pressure transducers if the pipe is originally empty.T o avoid damaging surges, fluid lines should remain full (if possible), pumps should be brought up to power slowly, and valves opened slowly. T o avoid damage from both fluid hammer and surges, a surge chamber should be installed.Symptoms of fluid hammer and surge's damaging effects:• Pressure transducer exhibits an output at zero pressure (large zero offset). • Pressure transducer output remains constant regardless of pressure • In severe cases, there will be no output.FREEZING:Prohibit freezing of media in pressure port. Unit should be drained (mount in vertical position with electrical termination upward) to prevent possible overpressure damage from frozen media.3. STATIC ELECTRICAL CHARGES:Any electrical device may be susceptible to damage when exposed to static electrical charges.T o avoid damage to the transducer observe the f ollowing:• Ground the body of the transducer BEFORE making any electrical connections.• When disconnecting, remove the ground LAST!Note:The shield and drain wire in the cable (if supplied) is not connected to the transducer body ,and is not a suitable ground.ƽƽ1.SPECIFICATIONS:PERFORMANCE SPECIFICATIONSOptional Analog Output (4-20mA):Accuracy ±1.0% FS (Accuracy includes the effects of Linearity, Hysteresis andR epeatability)Response Time: 30msec–10 sec (by user)Output Resolution: ±0.05 FSAnalog Scaling: User may configure analog output scaling to any range within–100 to 150% Full Scale of sensor range.Pressure Switch Output:T ype: NPN or PNP Open Collector up to 80mASetting Accuracy: ±1.0% FSResponse Time: 5msec–10 sec (by user)Hysteresis: Variable (by user)Switch Setting: User may adjust switch actuation and deadband to any points withinFull Scale sensor rangeDisplay:T ype: 4 digit, 8mm LEDAccuracy: ±1.0% FS (URL) + last digitResponse Time: 200msec–10 sec (by user)Display Setting: User may re-configure display scaling, set to capture MIN or MAX value and adjust display update rateLED Ring: 3 color emmisions (red, green, blue)Standard Ranges (Gauge):0 to 50psig, 100psig, 150psig, 300psig, 500psig, 1000psig, 1500psig, 3000psig,5000psig, 7500psigStandard Ranges (Compound):–15 to 75psig, –15 to 150psig, –15 to 300psig,ENVIRONMENTAL SPECIFICATIONSTemperature Limits:Storage: –20 to 70ºC (–4 to 158°F)Operating: –20 to 70ºC (–4 to 158°F)Compensated: –20 to 70ºC (–4 to 158°F)T emperature Effects:Zero and Span ±0.1% FS/ºC (from 23°C reference temperature)Humidity:Non-Condensing0 to 85% RH (Ranges 150 psi and below), 0 to 100% RH (Ranges 300 psi and above)FUNCTIONAL SPECIFICATIONSProof Pressure: 4X Range (Ranges 1500psi and below)2.5X (Ranges 3000psi and above)Burst Pressure: 10X Range (Ranges 1500 psi and below)5X Range (Ranges 3000 psi and Below), 3X Ranges (Ranges 5000 psi and above)Withstand Voltage: 350Vac 1 minuteInsulation Voltage: 50Vdc, 100M⍀minCE Compliance: EN61326-1 2006, EN61326-2-3 2006EU RoHS ComplianceStabiity: ±0.25% FS/Y earELECTRICAL SPECIFICATIONSPower Supply Requirements:Supply Voltage: 16-36Vdc (with Analog Output Option)11-36Vdc (Switch Output Version Only)Current Consumption: 50mAdc (max)Switch Contacts:User selectable NPN (default) or PNP OpenCollector OutputsNPN T ype: 30Vdc/80mA (max)PNP T ype: supply voltage 80mA (max), Voltage drop 1 Vdc (max)MECHANICAL SPECIFICATIONS Pressure Connection:1⁄4NPT (Male)Connection Location:Lower, Back Enclosure:Nickel Plated AluminumRating:IP67 (Ranges 300 psi and above); IP65 (Ranges 150psi and below)Electrical Connection:M12 Connector (4 pin)Weight:Approx. 150 gramsMedia:Fluids and gases compatible with 316SS (sensing housing) and 17-4 pH SS(sensor diaphragm)2. PRODUCT DIMENSIONS:3. INSTALLATIONInstall in a location where vibration and shock can be minimized and without direct sunlight on the display and care should be taken to locate the product in compliance with IP65 (150 psi and below) or IP67 (300 psi and above) environmental rating.• Pressure Port Connections 1⁄4NPT male 11⁄2turns past hand tight.1.34342.0553lower ConnectBack Connect4. WIRING:Cable ColorRed Power (+)Black Open Collector Output OUT 1White Open Collector Output OUT 2 / analog outputGreen Power (−)Silver Shielded GroundClear Vent T ubeNOTE: Mount M12 connector pins face on with electrical mating cable.Do NOT turn or pull on connector to prevent damage to unit.ᕥ Collector/switch 1ᕡ LED display ᕤ UP keyᕣ ᕢ MODE keyᕦ Setting mode LED operation indicator (SET)ᕥ Collector/switch 1(OUT 1)5. NOISE PREVENTIONPower SupplyThe pressure display can fluctuate and provide incorrecto utput if noise is present in the power supply/wires. Care should be taken to keep the GC35 power supply wires from highv oltage lines and use a power line with a high noise rejection ratio.6. STORAGEStore in a location in compliance with the environmental rating of the unit and within –20 to +70°C (–4 to 158°F). Avoid direct exposure of the display to Sunlight.7. MAINTENANCE Although this is a solid state device, it is recommended that a visual inspection be conducted twice a year along with regular zero adjustment if necessary.8. MENU NAVIGATIONFunctionsPlease Note: Do not use sharp objects to press the keys as this can puncture and damage the panel.Pressing the ɕMODE key for 3 seconds displays “_ _ _”. T o return to measurement mode, the “_ _ _” display will flash when 3 seconds have passed.9. fUNCTION SeTTING MODeSetup StepsPressing the ɕMODE key greater than 3 seconds will display Function Setting Mode. Scroll through appropriate displays and select feature to change/confirm. LED ring will flash until this menu is exited to the Measurement Mode by holding the ɕMODE key for more than 3seconds. The setting mode is used to select comparator operation, pressure unit, indication scaling, scaling of analog output and filter time constant.Note: Editing the setting value in function setting mode recalculates all of the setting values includ-ing the comparator. Please note that when the recalculated setting values are out of the display range, they will be adjusted to the upper or lower limit value that can be processed internally.Function Setting NotesComparator Operation SelectionFor the unit equipped with two comparator output option, both comparators will be in the same operation mode.Filter SettingThe GC35 is equipped with 5 internal time constant filters. Use of the function is recommended when measuring transient pressure source such that display, comparator output, analog output do not stabilize. The selected time constant filter is reflected on comparator/analog output as well.Energy-Saving Mode SettingThe unit is equipped with automatic display turn-off feature. If user wishes to turn-on the display only when reading the display, or to use the unit mainly for an electrical output reading, this fea-ture can be used.LED Ring Operation SettingⅪlr0 LED ring is off.(no linkage)ⅪLr1LED ring turns Red when comparator 1 is ON, and turn Blue or Green when OFF.ⅪL r2 LED ring turns Red when comparator 2 is ON, and turn Blue or Green when OFF.(Feature is only available for 2 comparator output option)ⅪLr3 LED ring turns Red when comparator 1 or 2 is ON, and turns Blue or Green when OFF.(Feature is only available for 2 comparator output option)(LED Ring: Blue when OFF: NPN output selected. Green when OFF: PNP output selected)Indication ScalingIn (Display setting), when (indication scaling) is selected, arbitrary scaling value, based on the applied pressure, can be displayed on the unit. This feature can scale the display value based on the minimum and maximum pressures within the rated pressure range, and will not affect the ana-log or switch output.• Decimal Point PlacementⅪ0No decimal point Ⅺ0.0One digit after decimal point Ⅺ0.00T wo digits after decimal point Ⅺ0.000Three digits after decimal point Analog Output Scaling (This menu is not available for 2 comparators option)This function sets analog output for pressures corresponding to zero point (4mA dc) and span point (20mA DC) in percentage figures (When pressure range is set to 0.0~100.0%F .S.)• Analog output under zero point pressureAfter Ⅺa-L is displayed for one second, current analog output under zero point (4mAdc) value in percentage figure (When pressure range is set to 0.0~100.0%F .S.) is displayed. Use Ĭk key or įk key to set pressure value in percentage figure.• Analog output under span point pressureAfter Ⅺa-X is displayed for one second, current analog output under span point (20mAdc)value in percentage figure (When pressure range is set to 0.0~100.0%F .S.) is displayed. Use Ĭk key or įk key to set pressure value in percentage figure.Example 1)Example 1)Pressure range 0.00~1450 psi (0.0~100.0%F .S.) corresponding to analog output of 4~20mA dc is scaled to pressure range 0.00~1,423 psi (0.0~98.1%F .S.) corresponding to analog output 4~20mA dc.Initial value (No changein this example)Pressure value for analog output zero point:Ⅺ0.0ǞⅪ0.0(%F .S.)Pressure value for analog output span point: Ⅺ100.0————————ǞⅪ98.1(%F .S.)Example 2)Example 3)PRESSURE RANGE (%F.S.)A N A L O G O U P U T (m A d c )-100 -50 0 50 100 15020161284PRESSURE RANGE (%F.S.)A N A L O G O U P U T (m A d c )-100 -50 0 50 100 15020161284PRESSURE RANGE (%F.S.)A N A L O G O U P U T (m A d c )-100 -50 0 50 100 15020161284Ĭk įk Key to selectĬk įk Key to selectSelect withX W set any desired value within the–1999 to 9999 range with UP/Down keysX W set any desired value within the0 to 2 sec range with UP/Down keysX W set any desired value within the–1999 to 9999 range with UP/Down keysX W set any desired value within the0 to 2 sec range with UP/Down keysSelect X W keys/reading by long pushingSelect X W keys/reading by long pushingSelect withX W set any desired value within the–1999 to 9999 range with UP/Down keysX W set any desired value within the0 to 2 sec range with UP/Down keysX W set any desired value within the–1999 to 9999 range with UP/Down keysX W set any desired value within the0 to 2 sec range with UP/Down keyssetting valueX W key to select an arbitrary numberbetween -10 to 110%F.S. of the current dispaly unit for simulating the pressure10. COMPArATOr SwITCH SeTTING MODe / lOOP CHeCK MODeSetup StepsPressing the ɕMODE key for less than 3 seconds will display message within the Comparator Setting/Loop Check Mode. Scroll through appropriate displays and select feature to change/con-firm. LED ring will flash until this menu is exited to the Measurement Mode by holding the ɕMODE key for more than 3 seconds.In “Comparator setting mode”, user can change settings on the comparator outputs provided bythe unit. (T wo comparator outputs or one for analog output unit are provided). The available selec-tions of this mode varies based on the selections made in Function setting mode and comparatoroutput type selection. For the unit provided with two comparator outputs, settings of each outputcan be done independently with the exception of the operation mode.•Hysteresis ModeSettings of comparator operation point (A) and comparator operation point (b)•Window Comparator ModeSettings of comparator operation point (A) and dead band (b)For operation points (A & B) setting, it is fixed at 1 %F.S. in the comparator OFF direction (win-dow comparator mode).Also, as common parameters between each operation mode, comparator ON time delay andcomparator OFF time delay can be selected in the range of 0.00~2.00 seconds.Loop check mode allows the user, without actually applying pressure to the unit, to vary pres-k key or įk key. As a result, comparator(s) and analog outputs sure display value by using Ĭwill vary based on the pressure display value chosen. This function allows the user to confirmoutputs or output settings manually. This function is also useful in checking proper wiring and othersimulations.Comparator 1: Use/No UseIf the comparator 1 was set to No use, LED (OUT1) will turn offComparator 2: Use/No UseOnly available with two comparators LED (OUT2) will turn off when comparator 2 is set to No Use. Comparator Setting Point A & bIn case comparator 1 is disabled, this menu is not available. Only available with two comparator option. Note: When setting the dead band (b) in "Hysteresis", if the set value is too small, there is a risk of chattering occurring. Be careful when setting dead band (b). For dead band (b), it is recom-mended that a value greater than 1%FS of pressure range is selected.Note: When the deadband (b) in “hysteresis” is set to negative, comparator is ON at low point (A)and OFF at high point (A)–(b).Note: C omparator output setting values are checked and recalculated when a setting related tocomparator operation is altered in order to prevent any inconsistencies in comparator opera-tion. The comparator’s output setting value is recalculated, if the calculation result is beyondsetting range and the comparator output setting value will be changed automatically so thatit will be within the setting range. Possible calculated error of ±1digit may be observed atcomparator output setting values when the comparator output setting value is recalculated.Comparator ON/OFF delay timeIn case comparator 1 is disabled, this menu is not available.Comparator 2 ON/OFF delay timeOnly available with two comparator option.Saving Comparator SettingThe comparator settings can be saved to the memory within the unit. The units’ current compara-tor settings will be saved therefore a comparator setting must be set prior to saving.What data is saved? Comparator(s) Use/No Use setting, comparator operation point (A), dead band (b) and ON/OFF Time delay.What is not saved? Comparator mode and/or output type will not be saved.Loading comparator settingWhat is loaded? Comparator(s) Use/No Use setting, comparator operation point (A), dead band (b), and ON/OFF Time delay.11. COMPArATOr SwITCH OPerATIONWhen the comparator output conditions shown below are met, each output becomes ON status and "Comparator output LED (OUT1, OUT2)" is red lit.•Operation of hysteresis mode•Operation of Window Comparator Mode•Operation of ON delay / OFF delaySetting the upper limit OFFSetting point (A)(A) – (b)Setting the lower limit The upper limit setting is determined when you select a positive number (including 0)for setting value (b).The lower limit setting is determined when you select a negative number for settingvalue (b).ON OFFFor (A) Ϲ (b)For (A) Ͼ (b)Setting point (b)Setting point (A)12. OTHer fUNCTIONS Basic Key OperationsFor setting up in each setting mode, the contents of selection UP/DOWN keys are chosen, respec-tively. In all setting modes, values are set with the UP/DOWN keys. Use UP key to increase and DOWN key to decrease values. A repeat state occurs in three phases of speed when the UP or DOWN keys are pressed for more than 0.5seconds to increase or decrease numerical value.Adjusting Zero PointIn Measurement Mode, press the MODE and DOWN keys for greater than 3 seconds; this will dis-play “_ _ _” after releasing pressure from the pressure port. Approximately 1 second later an auto-matic zero adjustment takes place and the pressure displays as zero.When the zero adjustment is successful ⅪAdj appears on the LED display.The error ⅪE-0 displays for one second when applied pressure was outside the range of -10~10% F .S. , zero adjustment does not happen.Peak/Bottom (Max./Min.) Hold Display ModeThe GC35 unit keeps the maximum and minimum pressure level applied to the pressure port as peak and bottom values respectively, in the internal memory. The peak and bottom values are dis-played as long as press and hold the Ĭk or įkkeys respectively. When you select this operation,the message ⅪPE+is displayed for one second and selected Peak/Bottom value is displayed.Peak and bottom values are reset when you reset power to the unit, or by following procedure.Resetting peak value: While holding the įk key, press the Ĭk key.Resetting bottom value: While holding the Ĭk key, press the įkkey.Key LockKey operations can be nullified to prevent inadvertent overwriting of setting values. Once the key lock state is set, the mode cannot be shifted to the one other than the peak hold display mode.The key lock mode cannot be reset by restoring power. It is reset by the following release opera-tion of a key lock.Setting of key lock :In measurement mode press ɕMODE and įkkeys together.ⅪLo(The lock message is displayed for one second indicating that the unit is locked.Release of key lock : P ress ɕMODE and įk keys together.ⅪUnL The Unlock message is displayed for one second indicating that the unit is unlocked Backup of Setting ValuesThe unit has an internal EEPROM and settings and the key lock state are maintained even after the power is turned OFF . Peak / bottom (max./min.) values will not be maintained.Maximum/Minimum Pressure CaptureThe GC35 unit keeps the maximum and minimum pressure level applied to the pressure port as peak and bottom values respectively, in the internal memory. The peak and bottom valuesare displayed while holding the Ĭk or įkkeys respectively. Message ⅪPE+is displayed for one second and selected Max/Min value is displayed by this operation. Maximum and mini-mum values are reset when you reset power to the unit or by the following procedure:Resetting Maximum value: While holding the Ĭk key, press the įk key.Resetting Minimum value: While holding the Ĭk key, press the įkkey.13. ERROR DISPLAYAn error message and pressure value are alternately displayed when one of the following errors occurs in the measurement mode (In case of “Out of pressure display range” error, only error message is displayed). Check the content of error message and take the action below immediately.14. TROUBLESHOOTING Error Possible cause ActionsPress any key to turn indication on or No displayEnergy-saving mode disable power-saving mode in the setup.(Function setting mode) Ǟ (Power-save setting) WiringCarry out wire connection correctly according to Supply voltage the connection point.Setting of comparatorSet a comparator output type (NPN, PNP) output type to match the setup of apparatus.No output(Function setting mode) Ǟ(Comparator operation selection) Comparator enabledEnable a comparator in the setup.(Comparator setting mode) Ǟ (Comparator Use/No use)Display/output do Pressure leakCheck pressure connection and piping.not indicate when Verify applied pressure by using a pressure gaugepressure is applied Too low pressure applied with the suitable pressure range.(remains at zero)Zero point shiftPerform zero point adjustment (zero point adjustment mode)Pressure indication mode Select a pressure indication(Function setting mode) Ǟ (Display setting)Analog scaling modeCheck analog output scaling setupUnit display/output (Function setting mode) Ǟ (Analog Output Scaling)conflicts with the Check the operational mode of the comparator, a value of applied Set value of the preset value, and the preset value of delay time.pressurecomparator output(Function setting mode) Ǟ (Select comparator mode) (Comparator setting mode) Ǟ (Comparator setting point) (Comparator setting mode ) Ǟ (Comparator delay) Overloaded comparator Use unit with a load current set to 80mAdc or lower.Foreign material Clean / remove obstruction in piping(blockage)Error DisplayContents ActionsOut of pressure display range (Upper limit)ⅪFFF A pressure above 110% FS of pressure range is applied, or when indicated valueexceeds 1999.Adjust the applied pressure Out of pressure display range (Lower limit) within the rated pressure.ⅪFFF A pressure less than –10% FS of pressure range is applied, or when indicated value falls below –1999.ⅪE-0 During zero point adjustment, applied Open the unit to the atmos-pressure is outside the range of ±10% FSphere and perform zero point adjustment again.15. Maintenance and WarrantyPeriodic InspectionDepending upon the type of use periodic inspection is recommended at least once a year.Please refer to the following items for periodic inspection.1. Appearance2. Display/output check via appropriate pressure standard(1)3. Display/output check via Loop Check(2)CAUTION• Avoid electrostatic charging. When cleaning this product, please use a soft, damp cloth.• Do not use thinner, etc. which may cause deterioration and failure.Product warrantyExcept as otherwise provided, the product warranty of this product is as follows:Period: 12 months after deliveryWarrantable defects: Defects resulting from the design and manufacture of our company, the quality of the material, etc.Implementation of warranty: This warranty will be completed by substitution or repair ofthe product concerned.Consequential damages caused by product defects are not the responsibility of them anufacturer.• If you have any questions about this document, please contact the sales office or distributor nearest you.• This document is subject to change without notice due to upgrade, etc.(1) If zero correction is required refer to section 12.(2) Loop check, see section 10.© 2011 Ashcroft Inc. 250 East Main Street, Stratford, CT 06614 USA T el: 203-378-8281, Fax: 203-385-0402 All sales subject to standard terms and conditions of sale.I&M011-10172. Rev. A 5/11。

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