VFG54+ relay / LCD / BUS

Sensor for temperature measurement at the surface of pipes (cold or warm water) and round surfaces. Spring loaded brass contact sensor with direct contact for fast response. For tightening straps and contact fluid please see accessories. The devices with relay output for a 2-point controller or a 2-stage 2-point controller and color-changing LCD allow a wide range of applications. Depending on the model, the sensor can be individually configured via Thermokon USEapp. Tool-free opening, closing and wiring as well as removable cable entries ensure quick and easy installation.

Measuring valuestemperature
Output voltage0..10 V or 0..5 V (adjustable via jumper; live-zero configuration via Thermokon USEapp), min. load 5 kΩ
Output ampereTRA: 1x 4..20 mA, max. load 500 Ω
Output switch contactRelay: 2x floating contact NO for 24 V ~ or 24 V = / 3 A, optional
Network technologyRS485 BACnet (MS/TP), LON FT (free topology), RS485 Modbus
Power supply15..35 V = or 19..29 V ~ SELV, A: 15..35 V = SELV
Power consumptionmax. 2,5 W (24 V =) | 4,3 VA (24 V ~)
Output signal range temp.TRV | TRA:, Scaling analog output, -20..+80 °C (default setting), selectable from 8 temperature ranges -50..+50 | -20..+80 | -15..+35 | -10..+120 | 0..+50 | 0..+100 | 0..+160 | 0..+250 °C, optionally configurable via Thermokon USEapp
Operating temperature rangepermissible working temperature, sensor pocket | holder -35..+120 °C, enclosure: -35..+70 °C, LCD: -20..+70 °C
Accuracy temperature±0,5 K (typ. at 21 °C within default measuring range)
DisplayLCD 29x35 mm with RGB backlight, optional
Enclosureenclosure USE-M, PC, pure white
ProtectionIP65 according to EN 60529, SI-Protection
Cable entryFlextherm M20 for wire Ø=4,5..9 mm, Relay/BUS: M25 with fourfold cable entry for wire with max. Ø=7 mm, removable
Connection electricalremovable plug-in terminal, max. 2,5 mm², BUS terminal: removable plug-in terminal, max. 1,5 mm²
Pocketbrass, spring loaded sensor
Ambient conditionmax. 85% rH short term condensation
Mountingalong the pipe or sideways
Contact

Contact us:


Thermokon Sensortechnik GmbH
Platanenweg 1
35756 Mittenaar
Tel.: +49 2778 6960-0


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