ATEX temperature controller
Description:
The ATEX temperature controller combines precise temperature control with integrated power limitation and power selection function. It is suitable for all your ATEX applications and can be installed both inside and outside potentially explosive areas. It is user-friendly and features a 7-segment display; the documentation supplied makes it easy to create/supplement the explosion protection document. The controller can be used for temperature classes T6 to T3 (depending on the set limiter temperature).
Features & Functions:
Comprehensive solution: control and limitation, including power selection
Suitable for all ATEX products; use in zones 1/2 (gas) and 21/22 (dust)
Ex-i (intrinsically safe) for Pt100 sensors; galvanically isolated measuring section according to DIN EN/IEC 60751
Integrated temperature switch (shut-off temperature approx. 90 °C)
Fault messages in the event of sensor breakage and sensor closure
Internal fuse for the control circuit accessible via terminal
7-segment LED display; switching point accuracy < 1 K, controller hysteresis 2 K
Alarm relay output: 1 changeover contact, 5 A / 250 V
Technical data:
| Parameters | Value |
|---|---|
| power supply | 230 VAC (50–60 Hz) |
| Load current (measured) | max. 25 A (external fuse 25 A) |
| measuring range | 0–450 °C |
| sensor connection | Pt100 (Ex-i), 2-/3-wire, galvanically isolated, DIN EN/IEC 60751 |
| Ex-i measuring circuit – Ex ib IIC | Uo = 6.3 V, Io = 22 mA, Po = 35 mW, max. Co = 1.5 µF, max. Lo = 10 mH |
| Ex-i measuring circuit – Ex ib IIB | Uo = 6.3 V, Io = 22 mA, Po = 35 mW, max. Co = 8.2 µF, max. Lo = 10 mH |
| temperature classes | T6, T5, T4, T3 (depending on the temperature limiter) |
| degree of protection | IP64 (EN 60529) |
| zone classification | Zone 1/2 (gas), Zone 21/22 (dust) |
| Show | 7-segment LED |
| Accuracy / Hysteresis | < 1 K / 2 K |
| alarm relay | 1× changeover contact, 5 A / 250 V |
| cable glands | 1× M25 (power supply), 1× M25 (heating cable), 1× M16 (sensor) |
| Housing material / Assembly | Aluminum, mounting on base plate |
| Dimensions / Weight | 260 × 160 × 135 mm / approx. 6.0 kg |
Note:
Use only with suitable ATEX components and in accordance with Directive 2014/34/EU. Installation/commissioning by qualified personnel.