Honeywell SmartLine ST 700 - Page 264

Page 248 ST 700 SmartLine Pressure Transmitters User’s Manual Revision 13
Flame-proof Installations: The transmitter can installed in the boundary wall between an area of EPL Ga/
Class I Zone 0/ Category 1 and the less hazardous area, EPL Gb/ Class I Zone 1/ Category 2. In this
configuration, the process connection is installed in EPL Ga/ Class I Zone 0/ Category 1, while the
transmitter housing is located in EPL Gb/ Class I Zone 1/ Category 2.
The applicable temperature class, ambient temperature range and maximum process temperature of the
equipment is as follows;
PROCESS TEMPERATURE VS AMBIENT TEMPERATURE
Maximum Process
Temperature
Temperature Class
T6
T5
T4
Ambient Temperature
-50
o
C TO +65
o
C
80
o
C
----
120
o
C
-50
o
C TO +70
o
C
-----
----
120
o
C
-50
o
C TO +85
o
C
-----
95
o
C
110
o
C
Consult the manufacturer for dimensional information on the flameproof joints for repair.
The transmitter can be installed in the boundary wall between an area of Category 1 and the less hazardous
area, Category 2. In this configuration, the process connection is installed in Category 1 while the
transmitter housing is installed in Category 2.
Intrinsically Safe: Must be installed per drawing 50049892
Division 2: This equipment is suitable for use in a Class I, Division 2, Groups A, B, C, D; T4 or Non-
Hazardous Locations Only.
The enclosure is manufactured from low copper aluminum alloy. In rare cases, ignition sources due to
impact and friction sparks could occur. This shall be considered during Installation, particularly if
equipment is installed a Zone 0 location.
If a charge-generating mechanism is present, the exposed metallic part on the enclosure is capable of
storing a level of electrostatic that could become Incendive for IIC gases. Therefore, the user/ installer shall
implement precautions to prevent the buildup of electrostatic charge, e.g. earthing the metallic part. This is
particularly important if equipment is installed a Zone 0 location.