Humidity Controller
Specification and Installation Instructions
HRO20LSS-141202-ETL
Page | 1
Model
HRO20LSS
Description
The Humidity Controller is a combination controller and
humidistat. The Humidity Controller is an advanced application
to control relative humidity for general purpose applications.
They are specially designed to control humidifiers and
dehumidification equipment.
Features
Outputs & Inputs
•
4 analog outputs (0-10 Vdc or 2-10 Vdc)
•
2 dry contact outputs
•
External humidity sensor input
•
Window or external temperature sensor input
•
Alarm status input
•
Low signal selector input
Operation & Display
•
Wall mounted controller
•
Adjustable setpoint with auto reset from external sensor
•
Multi level lockable access menu
•
Lockable setpoint and control mode
•
Backlit LCD with simple icon and text driven menus
•
Selectable Celsius or Fahrenheit scale
•
Humidification and dehumidification indicator
HRO20LSS
Technical Specifications
Description
HRO20LSS
Outputs
- Actual humidity (0-100% RH), 0-10 Vdc/2-10 Vdc
- Humidity setpoint (0-100% RH), 0-10 Vdc/2-10 Vdc
- Humidification proportional control signal, 0-10 Vdc/2-10 Vdc
- Dehumidification proportional control signal, 0-10 Vdc/2-10 Vdc
- Humidification dry contracts 24 Vac, 1 A max, 3 A in-rush
- Dehumidification dry contracts 24 Vac, 1 A max, 3 A in-rush
Inputs
- Low signal selector (LSS) - (0-10 Vdc/2-10 Vdc) or high limit external humidity sensor
(0-10 Vdc/2-10 Vdc)
- External setpoint from Neptronic humidifier, external humidity sensor (0-10 Vdc/2-10 Vdc), or
Low Signal Selector(LSS) - (0-10 Vdc/2-10 Vdc)
- 1 alarm status digital input (24 Vac or dry contact)
Power supply
22 to 26 Vac 50/60 Hz or 28 to 32 Vdc
Power consumption
1 VA
Setpoint range
10%-90% RH (in 1% increments)
Sensor precision
± 3% or better at 40% RH and 23ºC [73ºF]
Proportional band
2%-10% for control signal
Electrical connection
0.8 mm
2
[18 AWG] minimum
Operating condition
0ºC to 40ºC [32ºF to 104ºF], 0-95% RH
Storage condition
-10ºC to 50ºC [14ºF to 122ºF], 0-95% RH
Housing degree of protection
IP 30 (EN 60529)
Weight
130 g. [0.3 lb]
