VFG54+
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 values | temperature |
|---|---|
| Output voltage | TRV: 1x 0..10 V or 0..5 V, min. load 5 kΩ |
| Output ampere | TRA: 1x 4..20 mA, max. load 500 Ω |
| Output passive | PT100 | PT100 1/3 DIN | PT1000 | PT1000 1/3 DIN | Ni1000 | Ni1000TK5000, NTC10k | NTC 10k Precon | NTC5k | NTC20k | NTC1,8k, LM235Z | DS18B20 1-wire, KTY81-110 | KTY81-121 | KTY81-122 | KTY81-210 |
| Power supply | 15..24 V = (±10%) or 24 V ~ (±10%) SELV, TRA: 15..24 V = (±10%) SELV |
| Power consumption | TRV: typ. 0,42 W (24 V =) | 0,84 VA (24 V ~), TRA: typ. 0,5 W (24 V =) |
| Measuring range temp. | passive: -35..+90 °C |
| Output signal range temp. | TRV | TRA:, Scaling analog output, 0..+100 °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, adjustable at the transducer |
| Operating temperature range | permissible working temperature, sensor pocket | holder -35..+120 °C, enclosure active: -35..+70 °C, enclosure passive: -35..+90 °C |
| Accuracy temperature | measuring current typ. <1 mA, ±0,5 K (typ. at 21 °C within default measuring range), passive: depending on used sensor |
| Sensor | passive: 2-wire (standard), 3-wire or 4-wire |
| Enclosure | enclosure USE-S, PC, pure white |
| Protection | IP65 according to EN 60529, SI-Protection (not possible for electronic Sensors) |
| Cable entry | Flextherm M20 for wire Ø=4,5..9 mm, removable |
| Connection electrical | removable plug-in terminal, max. 2,5 mm² |
| brass, spring loaded sensor | |
| Ambient condition | max. 85% rH short term condensation |
| Mounting | along the pipe or sideways |
| Notes | other temperature sensors on request |