Specifications; Installation; Outdoors; Indoors - Novalynx 225-RHP-2S Series User Manual

NovaLynx Corporation

4 SPECIFICATIONS

225-RHP-2Sxx Temperature and Relative Humidity Sensor
Relative Humidity Range
Temperature Range
Accuracy, RH
Accuracy, Temperature
Hysteresis
Repeatability
Temperature Limits
Storage Temperature
Compensated Temperature Range
Power Requirements
Response Time
Electrical Connections
Drift
RH Sensor
Temperature Sensor
Enclosure / Rating
Cable
Weight / Shipping
Agency Approvals

5 INSTALLATION

5.1 Outdoors

For outdoor applications, use the U-bolt to clamp the sensor to a vertical pipe up to 1 ½" (38mm) in
diameter. 380-RHRS Solar Radiation Shield
The
rain or sunshine. Remove the cover of the enclosure, then route your cable through the cord grip on
the bottom of the enclosure. Follow the wiring diagram to make the connections to the screw terminal
block, then tighten the cord grip, leaving some slack inside. Use cable ties to secure the cable to the
support pipe. Complete the installation by connecting to your monitoring system.

5.2 Indoors

The sensor may be mounted indoors without a solar radiation shield. It should be mounted in a
location that receives adequate air flow for proper operation. The transmitter should be mounted such
that the cord grip points down to prevent moisture from entering. The U-bolt can be removed and the
mounting bracket bolted to a wall or post.

5.3 Duct Mount

The tip of the probe is sometimes inserted into an HVAC duct. In this application, drill a 1" diameter
hole in the duct at the desired location (away from fans, corners, heating and cooling coils, and other
equipment that will affect the measurement of the relative humidity). Insert the probe until the
225-RHP-2Sxx
0 to 100% RH
-40 to 140°F (-40 to 60°C)
±2% 10 to 90% RH @ 25°C
±0.9°F @ 72°F (±0.3°C @ 25°C)
±1%
±0.1% typical
-40 to 140°F (-40 to 60°C)
-40 to 176°F (-40 to 80°C)
-4 to 140°F (-20 to 60°C)
225-RHP-2S11: 10 to 35 VDC; Output signal: 4 to 20 mA (loop powered).
225-RHP-2S33: 15 to 35 VDC or 15 to 29 VAC; Output signal: 0 to 5 V @ 5 mA max.
15 seconds
Removable screw terminal block
<1% RH/year
Capacitance polymer
Solid state band gap
Polycarbonate / NEMA 4X (IP65)
not included
Transmitter only: 1 lb (.45 kg) / 2 lbs (.9 kg)
Transmitter and Solar Radiation Shield: 2 lbs (.9 kg) / 3 lbs (1.4 kg)
CE
be in place to protect the tip of the probe from
must
Page 5 January 2021