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Thermokon · Condensation monitor · Modbus
WK02+ RS485 Modbus
Condensation monitor with a 2 m remote sensor, a changeover relay and RS485 Modbus, to stop chilled water flow when condensation forms.
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Part number744355
Datasheet, PDF
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- DHL, under 15 kg £13.50 ex VAT
- Technical support from the people who commission it
Overview
The WK02+ stops condensation forming on chilled surfaces such as chilled beams and cooling pipes. It has an LED signal and a changeover relay output, and it can drive a cooling valve closed when condensation is detected. The remote sensor on a 2 m cable allows flexible fitting. It also measures temperature and humidity and reports dew point, absolute humidity and enthalpy over RS485 Modbus RTU. Sensitivity is set with a potentiometer.
Specification13 values
Communication
- Protocol
- Modbus RTU, RS485, 9600 to 57600 baud
- Connection
- Plug-in terminal, max. 2.5 mm², bus max. 1.5 mm², M25 cable entry
Electrical
- Power supply
- 15 to 24 V DC ±10% or 24 V AC ±10% (SELV)
- Power consumption
- Typ. 0.8 W (24 V DC), 1.6 VA (24 V AC)
Environment
- Operating temperature
- 0 to +50 °C
- Humidity
- Max. 85% rH, short term condensation
- Protection
- IP65
Performance
- Outputs
- 1 floating changeover relay, max. 250 V AC, 1 A resistive
- Measuring range
- 0 to 100% rH (non-condensing); temperature 0 to +50 °C
- Accuracy
- ±0.5 K (typ. at 21 °C), ±2% rH between 10 and 90% rH
Physical
- Cable length
- 2 m
- Housing material
- PC, USE-L housing
- Colour
- Pure white, transparent cover
From the manufacturer's datasheet for 744355.