OM375 : Compact Dew Point Temperature Transmitter for OEM Applications

Model :OM375
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Description

Applications :

The exact monitoring of dew point temperature in compressed air systems, dryers for plastic and other industrial processes is becoming increasingly more important.The 0M375 is designed for measurement of low dew points in OEM applications down to -60°C.The core of the transmitter is the monolithic measure¬ment cell type HMC01 developed by Omicron Sensing in thin-film technology.An autocalibration procedure which is integrated in the device and years of experience in low humidity adjust-ment make an
accuracy of <2°C Td (±3.6°F Td) possible. The transmitter has one analogue output for dew point, frost point or ppm volume concentration.

Additional information

Measuring Quantities

Dew Point (Td) Dew Point Sensor

: HMC01

Accuracy

: Traceable to intern. standards, administrated
by NIST, PTB, BEV…

Response Time t90

: 80 sec. -20°C Td —> -40°C Td (-4°F Td —> -40°F Td)
10 sec -40°C Td —> -20°C Td (-40°F Td —> -4°F Td)

Volume concentration

Measuring range

: 20…200 000ppm

Accuracy at 20°C (68°F) and 1013mbar

: 5ppm + 20% of reading

Outputs

Selectable and scalable

: 0 – 10V -1mA< I,< 1mA

analogue output for Td, Tf, Wv

: 4 – 20mA R < 500 Ohm

General

Supply Voltage

: 21…28V DC

Current Consumption at 24V DC

: voltage output: typ. 40mA / during autocalibration: 100mA

Pressure Range

: 0…20bar (0…290psi)

Housing / protection class

: Al Si Cu 3 / IP65

Electrical connection

: M12 connector

Sensor protection

: stainless steel sintered filter

Working temperature range

: probe: -40…70°C (-40…158°F)
electronic. -40…60°C (-40 140°F)

Storage temperature range

: -40…60°C (-40…140°F)

Electromagnetic compatibility according to

: EN 61326-1 EN61326-2-3 ICES-003 ClassB
Industrial Environment FCC Part15 ClassB