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Summary of Contents for Novalynx 225-RHP-2S Series
- Page 1 225-RHP-2Sxx User Manual 225-RHP-2S11 (4-20 mA output) 225-RHP-2S33 (0-5 V output) Temperature and Relative Humidity Transmitter 225-RHP-2Sxx Transmitter with 380-RHRS Solar Radiation Shield Phone (530) 823-7185 Email nova@novalynx.com Website www.novalynx.com DOC 225-RHP-2Sxx UM 20210113...
- Page 2 NovaLynx Corporation for instructions. Returns If equipment is to be returned to the factory for any reason, call NovaLynx between 8:00 a.m. and 4:00 p.m. Pacific Time to request a Return Authorization Number (RA#). Include with the returned equipment a description of the problem and the name, address, and daytime phone number of the sender.
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Page 3: Table Of Contents
NovaLynx Corporation CONTENTS FORWARD ..................................4 INTRODUCTION ................................4 PRECAUTIONS ................................. 4 SPECIFICATIONS ................................5 INSTALLATION ................................. 5 Outdoors ................................. 5 Indoors ..................................5 Duct Mount ................................5 WIRING .................................... 6 Dual 4-20 mA Output Wiring (Model 225-RHP-2S11) ..................... 6 Dual 0-5 V Output Wiring (Model 225-RHP-2S33) .................... -
Page 4: Forward
The sensor can be used indoors for HVAC monitoring purposes. An optional solar radiation shield (NovaLynx 380-RHRS) protects the sensor from rain and radiated heat when installed outdoors. The weatherproof enclosure, cord grip cable entry point, and a filter protect the electronics and sensors from environmental or mechanical damage. -
Page 5: Specifications
NovaLynx Corporation 4 SPECIFICATIONS 225-RHP-2Sxx Temperature and Relative Humidity Sensor Relative Humidity Range 0 to 100% RH Temperature Range -40 to 140°F (-40 to 60°C) Accuracy, RH ±2% 10 to 90% RH @ 25°C Accuracy, Temperature ±0.9°F @ 72°F (±0.3°C @ 25°C) Hysteresis ±1%... -
Page 6: Wiring
NovaLynx Corporation mounting flange is flush to the duct. Run one or two straps (or long cable ties) around the duct to hold the enclosure in place. 6 WIRING 6.1 Dual 4-20 mA Output Wiring (Model 225-RHP-2S11) Dual 4-20 mA output units may be powered with a 10-35 VDC supply. The transmitter is designed as a 2-wire 4-20 mA device with two channels. -
Page 7: Troubleshooting
NovaLynx Corporation 7 TROUBLESHOOTING If the sensor’s output signal appears to be in error or is absent, check the power connections. At the sensor cable, measure the battery or the input power source voltage with a voltmeter. Be sure that the instrument has been powered up correctly or wait for the next power ON cycle to occur. -
Page 8: Maintenance
NovaLynx Corporation techniques above, then disconnect the Temperature/Humidity sensor from the monitoring system and test it independently, using a power source and a digital voltmeter. Refer to the appropriate wiring diagram (Section 6) and set up your meter to read either mA or volts accordingly.