John Sherman Agencies Limited
 Contact Us
 Return to
Humidity Index
 Return to
Sherman Home
Dwyer Instruments Inc.Series HS Digital Humidity Switch
HS Digital Humidity Switch
 The microprocessor based Series HS Humidity Switch provides control for humidifying or dehumidifying. Relative humidity, output status, and error messaging can be viewed on the bright green LED. The switch features 9 user defined parameters including setpoint, hysteresis, control type, cycle time, and probe adjustment. Access to programming parameters can be locked for security purposes using the password protection feature. Use the configuration key (sold separately) to quickly program multiple units. The Series HS includes a fitting clip for panel mounting, gasket, rear terminal cover, and instruction manual.
Specifications
Relative Humidity Range: 0 to 100% RH
Input: 0 to 3 V Probe or 4-20mA Probe (Probe Not Included)
Accuracy: ±1% RH (control only)
Display: 3 digit, 1/2" green LED
Resolution: 1%
Operating Temperature Limits: 32 to 158°F (0 to 70°C)
Relay Contact Rating: 8A @ 250 VAC Resistive, 1/3 HP
Control Type: On/Off
Memory Backup: Non-volatile memory
Weight: 2.3 oz. (65g)
Front Panel Rating: NEMA 4X (IP65)
Agency Approvals: UL Recognized, CE
Models
Model Number
 Input Sensor
 Supply Voltage
HS-311
 0 to 3 V
 120 VAC
HS-312
 0 to 3 V
 240 VAC
HS-411
 4 to 20 mA
 120 VAC
HS-412 4 to 20 mA
 240 VAC
Probe:
THC-P Humidity Probe, 0 to 3 V output, 1.5m cable
Accessory:
TS2-K Configuration Key		 HS Dimensions
Dimensions in inches (mm)

Contact Us!

Sherman Instruments
John Sherman Agencies Limited
1641 Venables Street
Vancouver, British Columbia, Canada
V5L 2H1

Telephone: 604-254-9622
Fax: 604-254-3123

e-mail: info@johnsherman.com

Back to Top of Page