SFK02+ Basic Modbus
Immersion sensor with Modbus RS485 interface for temperature measurement of gases and liquids in HVAC applications. The sensor can be optionally screwed directly into a bonded pocket (see accessories). Types SFKH02+ with a 70 mm neck pipe are designed for applications with insulation materials. The measuring insert can be exchanged without disassembling the entire sensor. A hinged cover and tool-free wiring as well as removable cable entries ensure a quick and easy installation.
| Measured values | temperature |
|---|---|
| Network technology | RS485 Modbus, RTU or ASCII, half-duplex, baud rate 9.600, 19.200, 38.400 or 57.600, parity none, even or odd |
| Power supply | 15..24 V = (±10%) or 24 V ~ (±10%) SELV |
| Power consumption | max. 0,7 W (24 V =) | 1,8 VA (24 V ~) |
| Measuring range temp. | -50..+160 °C |
| Operating temperature range | permissible working temperature, pocket -50..+160 °C, optional -80..+260 °C (T260), enclosure active: -35..+70 °C |
| Accuracy temperature | ±0,5 K (typ. at 21 °C within default measuring range) |
| Enclosure | enclosure USE-S, PC, pure white |
| Protection (IP) | IP65 according to EN 60529, SI-Protection |
| Cable entry | Flextherm M20 for wire Ø=4,5..9 mm, removable |
| Electrical connection | removable plug-in terminal, max. 2,5 mm² |
| Neck pipe | optionally (types SFKH02+), stainless steel V2A, Ø=12 mm, L=70 mm |
| stainless steel V4A, Ø=8 mm, thread G 1/2", mounting length: 50 | 100 | 150 | 200 | 250 | 450 mm | |
| Ambient condition | max. 85% rH short term condensation |