PRODCUT
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- ALL
- Dew point transmitter
- Online dew point meter
- Portable dew point meter
- High temperature dew point meter
- Explosion-proof instrument
- Acid dew point meter
- Dew point sampling system
- Accessories
FM450 Dew point transmitter

FM450 dew point transmitter makes the dew point measurement as simple as temperature and pressure measurements and can be integrated with gas
measurement and control systems. Sidph highly automated manufacturing, calibration and testing process makes the FM450 not only reliable but also
cost-effective. We focus on more demanding precision and high levels of humidity measurement. FM450 is a 4 ~ 20mA two-wire low-humidity dew point
transmitter for on-line continuous measurement of air and other non-corrosive gas dew point. The dew point transmitter FM450 is extremely easy to install
and maintain.
TECHNICAL DATA
Measurement range(dew point) |
-110~+20¡ætd |
Accuracy | ¡À2¡æTd |
Pressure | 40MPa |
Measuring gas | non-strong corrosive gases |
Temperature | -40¡æ~+80¡æ |
Storage temperature | -30¡+60 ¡ãC |
Response time | T95¡Ö1 min£¨from dry to wet£© |
Output signal | 4-20mA |
Mechanical Connection | 5/8"-18 UNF |
Supply voltage | 24VDC£¨8~36V DC£© |
Ingress protection | IP65£¨NEMA4£© |
Housing material | 316 stainless steel |
Repeatability | <0.5%RH ;<0.1¡æ |
Filter | 20¦Ì stainless steel sintered |
Weight | 170g |
Flow rate | 0.2~5 L/M 0~10 M/S |
Diagnostic Conditions |
Condition Output Sensor fault 23 mA Under-range dew point 4 mA Over-range dew point 20 mA |
CE | certified |
DIMENSIONS

CONSULTING SIDPH SALES ENGINEER