R940 series (ETR series)_R941, R942, R943, R944
Service intended
Measuring the temperature in the area where combustible gas, particles and flammable liquid exist can be a very dangerous task. The electrical energy of measuring instrument is lower than electric motor, however, the malfunction of the instrument or the accident can cause to start the explosion. Therefore, ETR series is explosion proof type product which is designed to be used in a critical danger Zone 1 by acquiring IECEx and ATEX certification.
Certificates | ATEX II 2G Ex d IIC T6 Gb IECEx Ex d IIC T6 Gb |
Ambient temperature | -40 ~ +65 ºC |
Degree of protection | EN60529/IEC529/IP67 |
Standard features
Element | ■ Sheath type Thermocouple : K, E, J, T, N RTD : Pt 100 Ω at 0 ℃ ■ Non-metallic protection tube type Type R (87 % Pt, 13 % Rh/Pt) Type S (90 % Pt, 10 % Rh/Pt) Type B (70 % Pt, 30 % Rh / 94 % Pt, 6 % Rh) Type K |
Head material | ALDC (Standard) 316SS |
Tolerances on temperature reading | ■ Sheath type - Thermocouple Class 1, Class 2 (DIN/IEC584-2, BS/EN60584-2, JIS C1602) Special, Standard (ASTM E230, E988, ISA-MC96.1) - R.T.D. Class A : ± (0.15 + 0.002 l t l) Class B : ± (0.3 + 0.005 l t l) ■ Non-metallic protection tube type "K" type : Class 2 (0.75 %) Standard (0.75 %) "R", "S" type : Class 2 (0.25 %) Standard (0.5 %) "B" type : Class 3 (0.5 %) Standard (0.5 %) |
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