SF6 Dew Point and Pressure Temperature Transmitter (WFS-S6DPT)useThe new material polymer thin film sensor technology not only has the advantages of high humidity response of general polymer thin film sensors, but also has the best low humidity measurement response level. The sensor circuit design can automatically compensate for drift caused by temperature, pollution, and aging, ensuring long-term reliable high-precision measurement. Combined with the high stability of the new material polymer thin film sensor technology, the recalibration cycle can be extended to more than two years. The innovative temperature compensation algorithm and multi-point temperature compensation verification before leaving the factory greatly improve the temperature drift of the sensor and ensure high-precision measurement over a wide temperature range.

performance/Advantages

lNew polymer thin film sensor technology and its foundationMEMS pressure sensor;

lCan simultaneously monitor dew point and online pressure(Absolute pressure 0... 17 bar);

lup toAccuracy measurement of ± 2 ℃ TD (see figure below);

lHigh response speed and excellent long-term stability;

lAnti condensation, anti particle pollution, oil vapor, and most chemicals;

lMulti point temperature compensation calibration before leaving the factory;

lExcellent anti-interference ability;

lIP65 protection level, providing good protection even in harsh environments;

lThrough the standard configurationRS485 interface and powerful service software, providing comprehensive sensor settings, data transmission, software upgrades, and maintenance functions;

TECHNICAL INDEX

Measurement parameters

lDew point measurement range -80 …+20℃TD

lPressure measurement range, absolute pressure 0 … 17 bar

lTemperature measurement range -40 …+100℃

lSF6 or SF6/N2 mixture air tightness 0... 100 kg/m

measurement accuracy

lDew point accuracy(Air or nitrogen) ± 2 ℃ TD (see figure below)

lTemperature Accuracy

0 … +50℃ ± 0.3 ℃ (standard)

-40... 0 ℃ and+50...+100 ℃ ± 0.5 ℃ (standard)

lPressure Accuracy@23℃ ±0.3%FS

lPressure drifts with temperature±0.01bar/10℃

ldensity accuracy(pure SF6, 0 … 17 bar)

0 … +40℃ ±1%FS

-40…+60℃ ±2%FS

response time63% [90%]， 20℃，1bar(gauge)，4L/min

lDew point sensor

-50 -> -10℃TD 10 seconds [20 seconds]

-10 -> -50℃TD 30 seconds [2 minutes]

lPressure response time < 1 s

output

Current output (range adjustable)4... 20mA (3 wires)

Current output resolution 0.002mA

Current output temperature drift 0.01% of span /℃

Current output load maximum500ohm

Digital Output RS485 Modbus RTU

connector 5-pin M12

power supply

Normal measurement 16... 30V/30mA+4-20mA current output

work environment

operation temperature -20…+70℃

storage temperature -30…+80℃

relative humidity 0…95%RH

Sample gas flow rate >1 L/min

Pressure environment 0…50 bar

other

casing stainless steel

Protection level IP65

Mechanical component connectionISO G 1/2”

Stainless steel mesh filter Filter level30~45um

electromagnetic compatibility conform toIEC 61326-1

Service guarantee

l Provide on-site installation, debugging, and training guidance, and conduct on-site demonstration operations.

l Provide detailed Chinese manuals and user guidance.

l One year free warranty, lifetime spare parts support and maintenance.

l hotline365 days a week to answer user inquiries.