SF6 Dew point and pressure temperature transmitter (WFS– S6DPT) adopts new material polymer film sensor technology, which has the advantages of high humidity response of general polymer film sensors, and has superior low humidity measurement response level. The sensor circuit design can automatically compensate for drift caused by temperature, pollution, and aging, ensuring long-term reliable and high-precision measurement. Combined with the high stability of the new material polymer film sensor technology, the recalibration cycle is extended to more than two years. The innovative temperature compensation algorithm and multi-point temperature compensation check before delivery greatly improve the temperature drift of the sensor and ensure high precision measurement in a wide temperature range.

Performance/Advantage

l New polymer film sensor technology and MEMs-based pressure sensor;

l can simultaneously monitor dew point and on-line pressure (jue to pressure 0 … 17 bar);

lGouda ± Accuracy measurement of TD at 2℃ (see figure below);

l High response speed and excellent long-term stability;

l Anti-cold condensation, anti-particulate pollution, oil vapor and most chemicals;

l Multi-point temperature compensation check before delivery;

lExcellent anti-interference ability;

l IP65 protection grade, even in harsh environments can provide good protection;

lThrough the standard RS485 interface and powerful service software, to provide comprehensive sensor Settings, data transmission, software upgrade and maintenance functions;

Technical index

Measurement parameter

l lu point measurement range -80 … +20℃TD

l Pressure measurement range, jue to pressure 0 … 17 bar

l Temperature measuring range -40 … + 100 ℃

l SF6 or SF6/N2 mixture density 0 … 100 kg/m

Measurement accuracy

l lu point accuracy (air or nitrogen) ± 2℃TD (see figure below)

l Temperature accuracy

0 … +50℃ ± 0.3℃ (standard)

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

l Pressure accuracy @23℃ ± 0.3% FS

lPressure drift with temperature ± 0.01 bar / 10 ℃

l Density accuracy (pure SF6, 0 … 17 bar)

0 … +40℃ ± 1%FS

-40… +60℃ ± 2%FS

Response time 63% [90%], 20℃, 1bar(gauge), 4L/min

l Dew point sensor

-50 -> -10℃TD 10 seconds [20 seconds]

-10 -> -50℃TD 30 seconds [2 minutes]

l Pressure response time < 1 s

exportation

Current output (range variable)4&hellip; 20mA (3-wire)

Current output resolution 0.002mA

Current output temperature drift 0.01% of span /℃

Current output load up to 500ohm

Digital output RS485 Modbus RTU

Connector 5-pin M12

Power source

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

Working environment

Operating temperature -20… + 70 ℃

Storage temperature -30… + 80 ℃

Relative humidity 0… 95%RH

Sample gas flow rate >1 L/min

Pressure environment 50 bar

other

Case stainless steel

Protection level IP65

Connection of mechanical parts                 ISO G 1/2&rdquo;

Stainless steel mesh filter               Filtration grade30~45um

Electromagnetic compatibility in accordance with IEC 61326-1

Service guarantee

l Provide on-site installation, commissioning and training guidance, and carry out on-site demonstration operation.

lProvide detailed instructions and user guidance in Chinese.

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

l   Hot lineAnswer users' inquiries 365 days a day.