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Pressure transmitter

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Intelligent pressure transmitter

Intelligent pressure transmitter is used to measure the liquid level, density and pressure of liqui
Description

Intelligent pressure transmitter is used to measure the liquid level, density and pressure of liquid, gas or steam, and then convert it into 4 ~ 20mA DC signal output. GP intelligent pressure transmitter can also communicate with HART manual operator, through which setting, monitoring. Performance specification

(Zero reference check range, under reference conditions, silicone oil filled, 316L stainless steel diaphragm)

Reference accuracy±0.075% check range
stability±0.1%URL (6 months)
Ambient temperature effectZero errorPlus or minus 0.2% URL / 56 ℃
Population error± (0.2%URL+0.18% check range) /56℃
Vibration effectAt any axis, the vibration effect is ±0.5%URL/g at 200Hz
Power influence< ±0.5% output range/volt
Load effectThere is no load effect unless there is a change in the supply voltage
Electromagnetic interference/radio frequency interference (EMI/RFI influence)When the field strength reaches 30V/M from 20 MHZ to 1000MHz, the output drift is less than ±0.1%
Installation position effectThe zero drift is ±0.25kPa at most. All zero drift can be corrected, the range has no effect

Functional specification

Measuring rangeSee ordering Guide
Zero and rangeAvailable range and zero button adjustment, or remote adjustment with HART manual operator
Zero positive and negative transferFor zero positive transfer, the upper limit of the range must be ≤+URL; The lower limit of the range must be ≥-URL for zero negative transfer. (Check range must be greater than or equal to z.u small range)
Output signal4 ~ 20mA DC, users can choose linear or square root output, digital process variables superimposed on 4 ~ 20mA DC signal, can be used by HART protocol host computer
Damping time constantThe damping time constant is adjustable, increasing by 0.1 s from z.u to 16.0 s
Ambient temperature limitNo LCD watch head-40 ℃ to 85℃
With LCD watch head-30 ~ 60℃
Process temperature limitSilicon-filled oil-40 ℃ to 104℃
Inert liquid filling-18 ℃ to 85℃
Storage temperature limitNo LCD watch head-46 ~ 110℃
With LCD watch head-40 ~ 70℃
Ambient humidity0-100% relative humidity
Overvoltage limitWhen the measuring range is 6.90 MPa, the overpressure limit is 0 ~ 13.9MPa
When the measuring range is 20.68MPa, the overpressure limit is 0 ~ 31.02MPa
When the measuring range is 41.37MPa, the overpressure limit is 0 ~ 51.71MPa
Volume change< 0.16cm³



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