Equipment part Allowed ambient temperature range
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)
3.4.2.1 Specific conditions of use
The associated “X” sux for the HMT370EX certificate number indicates the following specific
conditions of use:
• With the installation of the equipment in EPL Ga Group II, when the enclosure is made
from aluminum alloy, it has to be ensured that sparks due to impact or friction do not
occur.
• The cable glands and blanking elements used with the transmitter must conform to
requirements of IEC 60079-0 (GB 3836.1).
Notices for equipment use
1. The transmitter is designed for use in a normal ambient temperature range of -40
°C … +60 °C (-40 … +140 °F).
2. The transmitter body has two alternative types: display and 4-button keypad, or LED
indicator. The temperature class of both types is T4.
Chapter 3 – HMT370EX regional safety certification information
35
To Next Page
Loading...
