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Introduction

Principle & Structure

PE-TF differential pressure transmitter is used to measure the pressure of liquid, gas and steam. After the PET differential pressure/pressure transmitter is equipped with a remote sealing device, it becomes a PETF remote differential pressure transmitter, which still has various characteristics of the PET differential pressure/pressure transmitter.

main feature

● Zero point and range can be adjusted on site

● 4-20mA output with HART communication protocol

● High precision and good stability.

● High static pressure, resistance to overpressure

● Good repeatability, with temperature compensation.

● Can be used for corrosive, high temperature type, easy to crystallize and clogging medium measurement

● Standard configuration HART communication protocol

● With explosion-proof function

● Damping can be adjusted

application

Suitable for a variety of harsh working conditions.

Mainly used for industrial process control, by choosing different diaphragms, it can be applied to a variety of working conditions, such as corrosive, high temperature type, easy to crystallize, easy to block, high viscosity medium measurement.

Suitable for measuring water, oil and gas media.

Used in steel mills, power plants, aviation, coal, mud, pulp, paper, food machinery and other industries.

technical parameter

Range:See parameter table for detailsPositive and negative transfer:The maximum positive migration is the upper limit of the measurement range (URL) and the measurement
output:The HART digital signal is superimposed on the two-wire 4-20mA DC signalDifference between ranges; maximum load migration is URL
Accuracy:0.2 level, 0.5 level optionalError alarm:Self-diagnostic program detects fault, analog output is higher than 20.8mA
Temperature effects:≤±0.45%/55℃or lower than 3.8mA alarm, high/low flag adjusted by HART communication
Static pressure effects:±0.1%/7MPa (zero position), ±0.2%/7MPa (range)Damping Constant:Electrical damping is 0-32s, which can be adjusted at 0.1s intervals.
stability:Transmitter accuracy not exceeded for six monthsOperating temperature:Electronic circuit: -30…85℃, sensitive element; see remote transmission device
Span error:±0.25% of input reading, (corrected by adjustment)Filling Liquid Properties Table
Installation location affects:When the sensor diaphragm is not vertical, it may produce no more thanMedium temperature:See the remote transmission device filling liquid characteristics table
Zero system error of 0.24Kpa, this error can be corrected by zero adjustmentstorage temperature:?-40…125℃
vibration effects;±0.1% maximum range limitRelative humidity:5%-98%
Power Effects:Less than 0.0055%V of output rangeProtection class:?IP65
Static pressure and overload limit:12…30VDCStructural materials:The electrical shell is made of aluminum alloy, and the other parts and materials are shown in the selection table.
load:The maximum load resistance R of the circuit board: R=(V-10.5)/0.0236,Explosion-proof grade:Exd IICT6
where R is the maximum load resistance Ω; V supply voltageElectrical connections:M20 1.5 screw holes for connecting cable ducts
Start Time:5Secweight:About 10kg (excluding accessories)
refresh time:0.25Sec
Span and Zero Adjustment:Adjustment by button or using HART communication

Note: URL is the upper and lower limits of the measurement range

Remote device filling liquid characteristics table
codefilling fluidtemperature rangeSpecific gravity g/(cm3)thermal expansion coefficientViscosity at 25°C (mPa.S)
200 series silicone oil-40 to 149℃0.9650.00108<20
SHigh temperature silicone oil-15 to 315℃1.070.0005340-50
FFluorine oil-45 to 205℃1.850.00086465

Selection table

PE-TF-Remote standard intelligent differential pressure transmitter series
PE-TF2-Remote transmission intelligent high static pressure differential pressure transmitter series
PE-TF3-Remote intelligent pressure transmitter series
PE-TF4-Remote Intelligent Absolute Pressure Transmitter Series

Measuring range

0…7.5Kpa

0…40Kpa

0…250Kpa

0…1000Kpa

0…25000Kpa

0…10000Kpa



4…20mA/with HART protocol

Contact rating

Level 0.2

Level 0.5

Interface thread

1/4NPT female thread

Alarm setting interval

Body: 316 stainless steel

isolation diaphragm

316 stainless steel

Hastelloy C-276

Monel

Tantalum

flange

One flange (standard DN50, others can be customized)

Two flanges (standard DN51, others can be customized)

protection

Standard

Flameproof

Intrinsically Safe
The complete data of this selection table, please contact the sales staff or email to sales@kewill-auto.cn for complete samples.
Prev :PE-T Series Differential Pressure Transmitter
Next:PE-TM Series Compact Differential Pressure Transmitter
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