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Thermokon · Contact sensor · Modbus
VFG54+ Basic RS485 Modbus
Spring-loaded brass contact temperature sensor for pipes with an RS485 Modbus RTU output, measuring cold or hot water.
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Part number747806
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- DHL, under 15 kg £13.50 ex VAT
- Technical support from the people who commission it
Specification
Communication
- Protocol
- Modbus RTU, half-duplex, RS485
- Interface
- RS485 Modbus, 9600, 19200, 38400 or 57600 baud, parity none (2 stop bits), even or odd (1 stop bit)
- Connection
- Plug-in terminal, max. 2.5 mm², M20 cable entry for cable 4.5 to 9 mm
Electrical
- Power supply
- 15 to 24 V DC (+/-10%) or 24 V AC (+/-10%)
- Power consumption
- max. 0.7 W (24 V DC), 1.8 VA (24 V AC)
Environment
- Operating temperature
- -35 to +120 °C
- Humidity
- max. 85% rH, short term condensation
- Protection
- IP65 IP rating
Performance
- Sensor element
- Spring-loaded brass contact probe
- Measuring range
- -35 to +120 °C
- Accuracy
- +/-0.5 K, typical at 21 °C
Physical
- Housing material
- PC, USE-S housing with quick-release cover
- Colour
- Pure white
- Mounting
- Along the pipe or sideways
From the manufacturer's datasheet for 747806.
Overview
The VFG54+ is a contact sensor for measuring the temperature of cold or hot water on pipes and other curved surfaces. A spring-loaded brass probe gives a fast response. The Basic version reports temperature over RS485 Modbus RTU and is set up with DIP switches. The housing has a hinged, quick-release cover, tool-free plug-in terminals and removable cable entries for quick wiring.