DTW/DTB Flame-proof temperature monitor/limiter
27-6C.2-.411 2000
Funktsioonid
- 22 A switching capacity
- Can be used directly in Zones 1 and 2
- Can be used directly in Zones 1 and 2
- Flameproof enclosure
- ATEX, UL, CSA, FM Approval
Sertifikaadid
RTN PPC 00-38415
GOST R POCC DE.ME92.B01970
GOSPROMNADZOR 11-02-0015-2012
Ex kaitse liik
II 2D tD A21 IP 6X T 80°C
Ümbritseva keskkonna temperatuur
Operating temperature range sensor:
-40 °C up to +215 °C
Operating temperature range capillary tube:
-50°C up to +215°C
Kirjeldus
The flameproof encapsulated temperature controllers/limiters (DTW/DTB) are designed for (trace)-heating applications in the Ex area. They can be used both for protection against frost and for maintenance temperature applications. Heating units and other operating equipment are switched on and off by means of the temperature controller when the temperature is too high or too low. The DTB temperature limiter is designed with resetting lockout; resetting (restarting) is only possible on the device. Can be used for monitoring temperature in the air or on surfaces.Function
A change in temperature in the sensor causes a change in volume in the fluid filled in the measuring system, which in turn results in a movement of a membrane, which is connected to transmission mechanics and activates a microswitch. If the sensor temperature exceeds the pre-set level, the contact is actuated.The temperature limiter switches off permanently if the temperature is exceeded. Once the temperature drops, the temperature limiter can be unlocked manually. If there is a break in the measuring system (leakage), the circuit remains open permanently.
Tehnilised andmed (väljavõte)
(Täpsema info jaoks klikka siia)Protection class | IP 65 / NEMA 4, 7, 9 |
Dimensions | Capillary tube: Length: 3000 mm, Diameter: 2 mm Bending radius: 15 mm Sensor: Length: 203 mm, Diameter: 8 mm |
Material | Enclosure: Aluminium die-casting, lacquered, with internal lid seal Capillary tube made of stainless steel Sensor made of stainless steel |
Storage temperature | -40 ?C up to +60 ?C |
Weight | 1.7 kg |
Temperature range | -4 ?C up to +163 ?C |
Voltage | AC 6/ 12/ 24/ 125/ 250/ 480 Volt, 50/60 Hz |
Current | Switching current for controller: 22 A at AC 6/ 12/ 24/ 125/ 250/ 480 Volt Switching current for limiter: 16 A at AC 6/ 12/ 24/ 125/ 250 Volt, 15 A at AC 480 Volt |
Connection | Terminals: Terminal screws 4/2.5 mm? (AWG 10-14) Cable entries: 2 x M 25 borehole |