HC2-LDP-EX - Low Dew Point Probe

Reliable measurement of trace moisture

More details

New product
More info

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
Probe typeDigital dew point & temperature
Dimensions145 x 140 mm (probe head)
Hexagonal nut: 3 x 140 mm
Weight260 g
Measuring range-70…85 °C Td / -40...85 °C
Dew point accuracy at 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 sensorHYGROMER® LDP-1
Long-term sensor stability dew point sensor<1 °C Td/year
Response time dew point sensor Ƭ63: @ -50 °C TdTypically <10 min, with filter
Response time temperature sensor Ƭ63: @ -50 °C TdTypically <15 min, with filter
Pressure resistance16 bar
100 bar (with LDP-MCS measurement chamber)
Power supply / Power consumption3.3…5 VDC / 1.5 mA
Temperature sensorPt1000, Class B 1/3
Filter cartridgeSintered stainless steel, 50 μm
Measurement interval2 seconds
Communication interfacesUART
HousingStainless steel 1.4301
IP protection ratingIP65
FDA/GAMP compatibilityYes
CE / EMC conform2004/108/EC
MaintenanceAnnual calibration (recommended)
Storage and transport conditions-40…85 °C, non-condensing

Contact Us

“Industrial Technical Services is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels”.


Please fill details below and one of our representative will contact you shortly. 

3 other products in the same category: