HC2-LDP-EX - Low Dew Point Probe

HC2-LDP-EX - Low Dew Point Probe

Low dew point probe. Reliable measurement of trace moisture.

The low dew point probe comes with the latest AirChip4000 technology. Calculates a measurement from the average of 8,000 single points within a 2 second interval and, together with the HYGROMER® LDP-1 dew point sensor, delivers measurements of the highest quality.

Field of Application
The low dew point probe can be used in compressed air systems, refrigeration driers and adsorption driers. ROTRONIC offers the probe with EX certificate for environments with ATEX requirements.

Suitable measurement chambers with a defined air flow rate and a quick connector for optimum dew point measurement are available in POM and stainless steel. The base unit can be used for customization.

  • Highly accurate dew point and temperature measurement
  • Withstands pressures up to 100 bar
  • HYGROMER® LDP-1 sensor element
  • Excellent repeatability
  • Trace moisture monitoring at low limits
  • With the latest AirChip4000 measurement technology
  • Compatible with HF5 / HF8 / PF4 transmitters and HP22 / HP23 handhelds
More Information
Probe type Digital dew point & temperature probe
Temperature sensor Pt1000, Class B 1/3
Measuring range -70…85 °C Td / -40...85 °C
Power consumption 3.3...5 VDC / <1.5 mA
Dimensions 145 x 140 mm (probe head)
Hexagonal nut: 3 x 140 mm
IP protection rating IP65
FDA/GAMP compatibility Yes
Measurement interval 2 seconds
Communication interfaces UART
Filter cartridge Sintered stainless steel, 50 μm
Weight 260 g
Housing Stainless steel 1.4301
CE / EMC conform 2004/108/EC
Maintenance Annual calibration (recommended)
Dew point accuracy @ 23 °C ±2 K Td (-50…20 °C Td)
±3.5 K Td (-60…-50 °C Td)
Temperature accuracy @ 23 °C ±0.2 K
Dew point sensor HYGROMER® LDP-1
Long-term stability dew point sensor <1 °C Td/Year
Response time dew point sensor Ƭ63: @ -50 °C Td Typically <10 min, with filter
Response time temperature sensor Ƭ63: @ -50 °C Td Typically <15 min, with filter
Pressure resistance 16 bar
100 bar (with LDP-MCS measurement chamber)
Storage and transport conditions -40…85 °C, non-condensing
Identification EX North America Class I, Div 1/2, Groups ABCD T5…T4,
Class II, Div 1/2, Groups EFG T80°C…T110°C
Ex e mb [ia Ga] IIC T5...T4 Ga/Gb
Ex tb [ia Da] IIIC T80°C…T110°C Da/Db
Class I, Zone 0/1, AEx e mb [ia Ga] IIC T5…T4 Ga/Gb
Class II, Zone 20/21, AEx tb [ia Da] IIIC T80°C…T110°C Da/Db

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