M&C HEX4-135, Instruction Manual

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www.mc-techgroup.com HEX4 | 1.04.02 7
6 APPLICATION
The electrical heater HEX 4.. has been developed for the heating of metal bodies (eg. M&C Gas sample probe
SP3000/SP3100..
,
M&C
Filter
FT-H..
).
The heater is suitable for the use in hazardous areas of zone 1 or 21 (combustible dusts or combustible gases)
II 2 GD
The indicated maximum surface temperatures are never exceeded even in case of faults according to category
1 which are very rare. This means that the heater
HEX4.. can also be used for those applications where the
heating energy has an effect to areas of zone 0 or 20 through a dividing wall.
The mounting onto the object to be heated is executed by
M&C
.
The heating radiator must be covered with a metallic protection shield.
7 DESCRIPTION
The probe heater type
HEX4-..
is designed for two temperature areas. It has got a heating plate with two self-
regulating heating cartridges, and a terminal box.
Version
Operating temperature °C [°F]
at 0 to 60 °C [32 to 140 °F]
ambient temperature
Max.
surface temperature °C [°F]
HEX4-180 120 to 160 [248 to 320] 180 [356]
HEX4-135 90 to 120 [194 to 248] 135 [275]
Table 1 Temperature ranges of the probe heater HEX4-..
An alarm contact is available for monitoring the temperature at the probe (low temperature):
•
Switch temperature for version HEX4-180 > 100 °C [212 °F]
•
Switch temperature for version
HEX4-135
> 60 °C [140 °F]