Removing or modifying parts is not permitted. Modifications carried
out by the user can impair the Ex protection of the device or otherwise damage
the device.
CAUTION!
Table 27 Allowed ambient temperature ranges
Equipment part Allowed ambient temperature range
Transmitter body -40 °C … +60 °C (-40 … +140 °F)
Probe body -40 °C … +60 °C (-40 … +140 °F)
Probe head HMP371 Temperature class T4:
-40 °C … +60 °C (-40 … +140 °F)
Probe head HMP373 Rubber cable version:
Temperature class T6:
-40 °C … +55 °C (-40 … +131 °F)
Temperature class T5:
-40 °C … +80 °C (-40 … +176 °F)
FEP cable version:
Temperature class T6:
-40 °C … +55 °C (-40 … +131 °F)
Temperature class T5:
-40 °C … +100 °C (-40 … +212 °F)
Temperature class T4:
-40 °C … +120 °C (-40 … +248 °F)
Probe heads HMP374, HMP375, HMP377,
HMP378, HMP378F, and HMP378H
Temperature class T6:
-70 °C … +55 °C (-94 … +131 °F)
Temperature class T5:
-70 °C … +100 °C (-94 … +212 °F)
Temperature class T4:
-70 °C … +135 °C (-94 … +275 °F)
Temperature class T3:
-70 °C … +180 °C (-94 … +356 °F)
3.8.2.1 Specific conditions of use
With the installation of the equipment in Zone 0 Group II area it has
to be ensured that sparks due to impact or friction do not occur.
CAUTION!
HMT370EX User Guide M212305EN-B
58
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