R840 Series_Coil End Temperature Detector and Bearing Temperature Sensor

R840 Series_R841, R842, R843, R844, R845, R846, R847, R848

Categories: Stator Winding/Bearing, TG Sensor•Heater•Transmitter, WISE

Service intended

Coil End Temperature Detector has its element covered in heat-resistance contraction tube and liquid silicone inside, which is engineered for fast response time and strong resistance to vibration. It is usually installed on motors or end part of generator stator. Bearing temperature sensor feature a sensing tip constructed of stainless steel. The bearing temperature sensor design also focuses the temperature sensitive portion of the sensor near the tip of the probe, providing improved accuracy in thermowells, bearings and other installations.

Standard features

Element	RTD : Pt 100 Ω at 0 °C(DIN) Film type
Body material	Coil End Temperature Detector : Teflon Bearing Temperature Sensor : 304SS, 316SS, 316L SS
Body outer diameter and length	Coil End Temperature Detector : Min. 4 x Min. 25 mm Bearing Temperature Sensor : Min. 3.2 x Min. 6.35 mm
Molding	Coil End Temperature Detector : Silicone filled Bearing Temperature Sensor : Epoxy filled, Silicon filled
Standard	Explosive atmospheres. Equipment – General requirements IEC 60079-0 / EN 60079-0 Electrical apparatus for explosive gas atmospheres. Increased safety ” e ” IEC 60079-7 / EN 60079-7 Intrinsic safety ” i ” IEC 60079-11 / EN 60079-11
Certificates	ATEX II 2G Ex eb IIC Gb IECEx Ex eb IIC Gb ATEX II 1G Ex ia IIC T6…T3 Ga IECEx Ex ia IIC T6…T3 Ga KCs Ex eb IIC Gb KCs Ex ia IIC T6…T3 Ga
Tolerances on temperature reading	R.T.D. Class A : ± (0.15 + 0.002 l t l) Class B : ± (0.3 + 0.005 l t l)
Service Temperature (Ex e)	-40 °C ≤ Tservice ≤ 180 °C
Ambient Temperature	■ Temperature class T6 : -40 °C < Tamb < 75 °C (1) One Pt100 Ui = 30 V, Ii = 25 mA, Pi = 70 mW (2) Two Pt100 Ui = 30 V, Ii = 15 mA (each Pt100), Pi = 50 mW (together) ■ Temperature class T5 : -40 °C < Tamb < 95 °C (1) One Pt100 Ui = 30 V, Ii = 55 mA, Pi = 630 mW (2) Two Pt100 Ui = 30 V, Ii = 45 mA (each Pt100), Pi = 760 mW (together) ■ Temperature class T4 : -40 °C < Tamb < 130 °C (1) One Pt100 Ui = 30 V, Ii = 55 mA, Pi = 630 mW (2) Two Pt100 Ui = 30 V, Ii = 50 mA (each Pt100), Pi = 1 W (together) ■ Temperature class T3 : -40 °C < Tamb < 180 °C (1) One Pt100 Ui = 30 V, Ii = 40 mA, Pi = 255 mW (2) Two Pt100 Ui = 30 V, Ii = 30 mA (each Pt100), Pi = 260 mW (together)