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Thermokon · Immersion sensor · Modbus
SFK02+ FR RS485 Modbus
Fast response immersion temperature sensor with a 4 mm pocket in 50, 100 or 200 mm lengths, RS485 Modbus and analogue outputs, optional LCD.
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Part number666237
Datasheet, PDF
- Quotes answered within 24 hours, no account needed
- DHL, under 15 kg £13.50 ex VAT
- Technical support from the people who commission it
Specification
Communication
- Protocol
- Modbus RTU, RS485, 9600 to 57600 baud
- Interface
- RS485 Modbus and analogue
- Connection
- Plug-in terminal, max. 2.5 mm², bus max. 1.5 mm², M25 cable entry
Electrical
- Power supply
- 15 to 35 V DC or 19 to 29 V AC (SELV)
- Power consumption
- Max. 2.5 W (24 V DC), 4.3 VA (24 V AC)
Environment
- Operating temperature
- -50 to +160 °C at the probe, -20 to +70 °C enclosure
- Protection
- IP65 IP rating
Performance
- Output signal
- 0 to 10 V or 0 to 5 V, min. load 10 kΩ
- Measuring range
- Output scaling 0 to +160 °C or -20 to +80 °C by default, selectable from 8 ranges
- Accuracy
- ±0.5 K (typ. at 21 °C), offset adjustable by app or uConfig
- Probe length
- 50, 100 or 200 mm
Physical
- Housing material
- PC, USE-M housing; stainless steel probe 1.4571
- Colour
- Pure white, transparent cover
- Mounting
- G1/2 inch thread
Part numbers
From the manufacturer's datasheet for SFK02+ FR RS485 Modbus.
Overview
The SFK02+ FR is an immersion sensor with an integrated thermowell for gases and liquids in HVAC applications. The 4 mm pocket tip gives a fast response. It reports over RS485 Modbus RTU and has a 0 to 10 V or 0 to 5 V analogue output. The probe is stainless steel with a G1/2 inch thread and comes in 50, 100 and 200 mm lengths. The LCD versions add a colour changing display with configurable thresholds. Set up is by USEapp, uConfig, jumper or DIP switches.