User manual HONEYWELL FT DATASHEET

[. . . ] 2 mA, 24 VDC vertical IP 65 EEx de IIC T6 II 2 G D EEx de IIC T6 IP65 T80° C PTB 02 ATEX 1121 Terminal connection M 16 x 1. 5 -15 to +60 °C Adjustable with spindle after the terminal box lid is removed. Not adjustable Isolation values Sensor systems Adjustable or not adjustable (see Product Summary) Max. 70 °C, briefly 85 °C No significant deviations up to 4 g. [. . . ] type Ex 011, must be tested by the Physikalisch-Technische Bundesanstalt (PTB) pursuant to ATEX 100 and approved for use in explosion risk areas. Isolating amplifiers must in any event be installed outside the explosion risk area. Thermostats which are intended for EEx-ia installations are equipped with blue terminals and cable entries. In view of the low voltages and currents carried via the contacts of the microswitches, goldplated contacts are used in the EX-i version (additional function ZFT 513). Temperature monitoring in Zone 1 (21) and 2 (22) Pressure-proof encapsulated Ex-de . . . Intrinsically safe D . . . -513 +Ex 011 Explosion protection: II 2 G/D EEx de IIC T6 IP 65 T80° C ATEX approval for the complete switching device Thermostats with silver contact Explosion protection: EEx-ia ATEX approval for isolating amplifier Ex 011 Thermostats with gold-plated contacts, blue terminals and blue cable entries. 2 mA, 5 VDC Information for devices with additional function ZF 513, ZF 574, ZF 576 to EN 50020: Ui = 10 VDC Ii = 20 mA Li = 0 µH Ci = 0 pF Switching capacity: max. 2 mA, 24 VDC The thermostat can be installed within the Ex-Zone. The isolating amplifier must be installed outside the Ex-Zone. 28 Mechanical Thermostats Frost protection thermostats Frost protection thermostats Ty p e s e r i e s F T for air heating and conditioning systems With FT frost protection thermostats, it is necessary to ensure that the ambient temperature at the switching device does not fall below the defined switching point. Also, parts of the capillary tube outside the air heater must not be laid in zones whose temperature may fall below the defined switching point. Either situation would cause the device to cut out prematurely. FT015 Technical data (not applicable to Ex versions) Body Diecast aluminium GD Al Si 12 according to DIN 1725. Cu capillary tube +70°C +60°C for Ex versions Sensor Max. ambient temperature at switching device FEMA frost protection thermostats reliably monitor the temperature in hot-water-heated air heaters. If the temperature falls below the set value, the thermostat switches off. A visual or audible "frost hazard" alarm can be switched on at the same time. A fixed stop on the setting spindle at 3°C prevents the thermostat from being set below the freezing point due to inexpert adjustment. If the capillary tube is damaged or broken, FEMA frost protection thermostats reliably switch off towards the safe side (e. g. fan off) irrespective of the temperature at the sensor. Contact arrangement Single-pole changeover switch Switching capacity 8 (5) A 250 VAC Degree of protection IP 54 according to DIN 40050 (with vertical installation) Switching differential approx. [. . . ] See separate data sheet, FTS, page 42. Terminal connection -version · Degree of protection Type Setting range II 2 G/D EEx de IIC T6 IP65 T 80°C Max. temperature at sensor +130°C +130°C Version Dimensions Ex-FT 015 Ex-FTB 015 +4 to +15°C +4 to +15°C 6 m capillary tube 3 m capillary tube Specification Frost protection thermostat type . . . with 3 m / 6 m capillary tube for monitoring the surface of the air heater. [. . . ]