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Optical Chilled Mirror Dew Point Transmitter
RHCM-40 Series
PLACE ORDER - Wall, Duct and Pipe Mount Models
- Remote Type Models
- 4-Wire RTD Measurement for Dew Point
- ±0.2°C Accuracy for Both Dew Point and Temperature
- Long-Term Stability and Repeatability
- RS232, Bi-Directional, Serial Output
- Electronics Housed in IP65 Enclosure (Wall Mount)
- Aluminum Housing for Other Configurations
- 2 Analog Outputs (4 to 20 mA/0 to 5 Vdc to 0 to 10 Vdc Selectable) Optional Features
- Air Temperature and Humidity
- 2 Line LCD (Graphical Display with 3 Parameters Displayed at One Time)
- AC Universal Supply 85 to 230 Vac
- Flow-Through Sample Chamber U High Pressure (20 bar)
Description
Description
The RHCM-40 Series dewpoint transmitter is an opticalchilled mirror high performancehygrometer designed tocontinuously measure themoisture content in gases. Thesensor provides accurate longterm repeatability and highreliability performance for processcontrol and energy management.The instrument is powered by24 Vdc or optional AC universalsupply 85 to 230 Vac.The RHCM-40 series usesthe chilled mirror dew pointtemperature condensationprinciple to determine thewater vapor concentration ingas mixtures, and a platinumresistance RTD to accuratelymeasure that temperature.Options include air temperatureand humidity measurement.There are two selectableanalog outputs whichinclude 4 to 20 mA,0 to 5 Vdc, or 0 to 10 Vdcand an RS232 serial portas well as electricallyisolated relay contacts.
Specifications
Range:
Dew Point (Standard): -40 to 60°C (-40 to 140°F)
Air Temperature (Optional): -40 to 60°C (-40 to 140°F)
RH (Optional): 1 to 95%
Accuracy: ± 0.2°C for both dew point and temperature
Hysteresis: Negligible
Repeatability: ±0.05°C
Response: 1°C/second not including settling time
Flow Rate: Static to 3000 linear feet/minute
Pressure: 100 psig maximum (higher pressure available on special order)
Analog Outputs: 2 analog ouputs (4 to 20 mA/0 to 5 Vdc to 0 to 10 Vdc selectable)
Load:
4 to 20 mA: 0 to 250 Ω
0 to 5/10 Vdc: 1 kΩ or higher
Relay Outputs: 2 programmable alarm relays
K1: Clean mirror/Alarm 1
K2: Servolock/Alarm 2
Contact Rating: Normally open (NO) 3 A at 25 Vac, or 30 Vdc
Remote Cable Configuration:
Dew Point: 3 m (10') standard, 15.2 m (50') maximum
Air Temperature (Optional): 3 m (10') standard, 15.2 m (50') maximum
For Dew Point: 2 stages of cooling (TEC) with a depression of 60°C
Mirror:
Standard: Chrome plated
Optional: Gold or platinum
Power Supply: 24 Vdc ±20%, 1 A maximum
Weight: 1.4 kg (3 lb)
Electronics Module Outside Dimensions: 130 H x 130 W x 76 mm D (5.1 x 5.1 x 3") Anemometer | Automation | Accelerometers | Calibrator | Cartridge Heaters | Chart Recorders | Cryogenics | Custom Pressure Transducers | Data Loggers | Data Acquisition | Dial Thermometers | Fiber Optics | Fiber Optic Temperature Measurement | Flexible Heaters | Flow Meters | Glass Bulb Thermometers | Grippers | Heaters | Humidity Measurement | Integrated Circuit Sensors | Immersion Heaters | Infrared Thermometers | Level Measurement | Load Cells | M12 Temperature Connectors | Magnetic Flow Meter | Panel Meter | PID Controllers | pH meter | Pressure Gauges | Pressure Transducers | Pressure Transmitters | Rotameters | RTD | Remote Process Monitoring | Sanitary Sensors | Signal Conditioners | Stepper Motors | Strain Gages | Strip Heaters | Temperature Controllers | Temperature Labels | Temperature Measurement | Temperature Sensor Manufacturing | Temperature Sensors | Temperature Transmitters | Thermal Imagers | Thermistors | Thermocouple | Thermocouple Wire | Thermowell | Ultrasonic Flow Meters | Vortex Flow Meter | Wireless Sensors
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