Vaisala HMT370EX - Table 21 Allowed Ambient Temperature Ranges

The dierent probe head variants are designed for a range of applications, and have their own
specifications. Ensure that the transmitter body, probe body, and probe head are each placed
in an environment that matches the specification of the part. For allowed ambient temperature
ranges, see Table 21 (page 46).
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 21 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)
HMT370EX User Guide M212305EN-B
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