HH920B-IS-Series

Intrinsically safe digital thermometers are a necessity for areas labeled hazardous. The 921B is a single-channel intrinsically safe digital thermometer. The 922B is a dual-channel intrinsically safe digital thermometer. They both are rated Class 1 Division 1, ATEX, and IECEx making them compliant for these hazardous areas. They will guard against ignition when used in environments where flammable liquids, gases, vapors and dust are present. These thermometers are compatible with K, J, T, E , N, R, S and B thermocouple probes. They have a working temperature range of -250°C (-418°F) to 1372°C (2501°F). Please see the selection table below to choose and purchase an intrinsically safe probe.

Intrinsically Safe Probes Item Description Maximum Probe Temperature Range IS9K603MTC06 Standard Immersion K Probe 900°F(482°C) IS9K613MTC06 Tapered Immersion K Probe 900°F(482°C) IS9K605MTC06 Surface K Probe 900°F(482°C) IS9K606MTC06 Air/Gas K Probe 570°F(300°C) IS9T603MTC06 Standard Immersion T Probe 900°F(482°C) IS9T613MTC06 Tapered Immersion T Probe 900°F(482°C) IS9T605MTC06 Surface T Probe 900°F(482°C) IS9T606MTC06 Air/Gas T Probe 570°F(300°C)

921B/922B Thermocouple Probe Temperature Range Temperature Ranges °C °F K K -200 to 1372 -328 to 2502 73 to 1645 J -210 to 1200 -346 to 2192 63 to 1473 T -250 to 400 -418 to 752 23 to 673 E -250 to 1000 -418 to 1832 23 to 1273 B 600 to 1820 1112 to 3308 873 to 2093 N -250 to 1300 -418 to 2372 23 to 1573 R -50 to 1767 -58 to 3213 223 to 2040 S -50 to 1767 -58 to 3213 223 to 2040

Please see below for additional intrinsic safety information:
0539 II 1G
Ex ia IIB T4 Ga
Class I, Division 1, Group C and D, T4
Class I, Zone 0 AEx ia IIB T4
Zone 0 Ex ia IIB T4 Ga
DEMKO 19 ATEX 1970 Rev. 0
IECEx UL 19.0010
-20 °C ≤ Ta ≤ +50 °C