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SERIES HS
HUMIDITY SWITCH
Programmable, 16 A Relay, 3-Digit Display
AIR QUALITY
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The Series HS Humidity Switch provides control for humidifying or dehumidifying
systems. Relative humidity, output status, and error messaging can be viewed on
the bright green LED. Access to programming parameters can be locked for security
purposes using the password protection feature.
BENEFITS/FEATURES
• Relative humidity display and control
• Parameter protection
• 0-1 V, 4-20 mA or 3 V (THC-P) input selection
APPLICATIONS
• Environmental chambers
• Beer and wine chillers
• Greenhouses
MODEL CHART
Model Supply Power
HS-311
115 VAC
HS-312
230 VAC
ACCESSORIES
Model Description
THC-P Humidity probe, 3 V output, 4´ (1.2 m) cable
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Panel cutout 2-51/64˝ x 1-9/64˝ (71 x 29 mm)
SPECIFICATIONS
Relative Humidity Range: 10 to 100% RH.
Input: 0-1 V, 3 V or 4-20 mA.
Accuracy: THC-P: ±5% @ 20 to 90%; HS: ±1% RH.
Display: 3-digit, green, 1/2˝ (12.7 mm) digits.
Resolution: 1 digit.
Temperature Limits: 32 to 158°F (0 to 70°C).
Storage Temperature: -4 to 176°F (-20 to 80°C).
Output: 16 A SPDT relay @ 250 VAC resistive.
Horsepower Rating (HP): 1 HP.
Control Type: ON/OFF.
Power Requirements: 115 VAC or 230 VAC (depending on model).
Memory Backup: Nonvolatile memory.
Front Panel Rating: IP64.
Weight: 2.3 oz (65 g).
Compliance: CE, cURus.
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