WM33 & 52

 Relative Humidity and Temperature Transmitter, Multi Unit
A wall mount unit that has the ability to display and provide an output signal of % RH, dew point or absolute humidity and temperature. The WM Series offers excellent measurement accuracy and stability wherever a wall-mounted sensor is required.







Product Features

  • % RH, dew point, absolute humidity and temperature outputs
  • User selectable 2 line or 4 line display
  • Easy to calibrate and re-calibrate
  • Digital interface (optional)
  • Long term stability: ±1% RH over 12 months
  • Quick installation
WM33 & 52

Technical Specification
PERFORMANCE
Measurement Range (RH) 0-100% RH
Measurement Range (T) 0 to +100°C, -20 to +80°C, 0 to +50°C or Pt100
Accuracy RH @ 23°C WM52: <±2% RH (10 – 90% RH)
WM33: <±3% RH (30 – 80% RH)
Accuracy T @ 23°C WM52: ±0.2°C (-10 to +50°C)
WM33: ±0.3°C (+5 to +40°C)
Stability - RH Sensor <±1% RH/year
Response Time - RH Sensor <10 sec typical without filter (for 90% of the step change)
ELECTRICAL INPUT/OUTPUT
Output Signal 4–20 mA
0–1 V, 0–5 V, 0–10 V
Supply Voltage 14–30 VDC, 5–30 VDC
(0–1 V & mA output)
OPERATING CONDITIONS
Operating Temperature Probe: -30 to +70°C
Housing: -30 to +70°C
Storage: -40 to +75°C
Operating Humidity Probe: 5-95% (non-condensing)
Housing: 5-95% (non-condensing)
Storage: 5-95% (non-condensing)
PRT
Measurement Range Pt100/1000 -50 to +200°C
Accuracy Pt100/1000 ±0.15%
MECHANICAL SPECIFICATIONS
Housing Material Plastic
Weight 82g
Electrical Connections M16 x 1.5
ALTERNATIVE OUTPUTS
Dew Point -40 to +60°C
Absolute Humidity 0–200 g/m3