GAS 222.21 Ex2
1.4 Ordering instructions
The item number is a code for the configuration of your unit. Please use the following model key:
4622221
X 0 X X X X 3 X X X X X X X Product Characteristics
Terminal box
0
No
1
Yes
Flange
0 1
Flange DN65 PN6
0 2
Flange DN3"-150
Hazardous area Outside and Inside
2 9
Ex-Zone 2 outside
2 2
Ex-Zone 2 outside and inside
Temperature class
3
T3
4
T4
Power supply sample probe
3
115/230 V
Low temperature alarm
1
NC contact (open at operating temperature) (marked "ic")
2
NO contact (closed at operating temperature) (marked "ic")
Calibrating gas port
0
No
1
6 mm
2
6 mm with check valve
3
1/4"
4
1/4" with check valve
Capacitive vessel
0
No
1
Yes (not for Zone 2 inside)
Valve for pressurized air
0
Ball valve
1
Solenoid valve 115 V (marked "mb")
2
Solenoid valve 230 V (marked "mb")
3
Solenoid valve 24 V (marked "mb")
9
none
Pneumatic actuator internal ball valve
0
No
1
Mono stable depressurized open
2
Mono stable depressurized closed
Limit switch for pneumatic actuator
0
No
1
Yes
Solenoid valve for pneumatic actuator
0 No
1 Yes (marked "mb")
4
Bühler Technologies GmbH
BE460048 ◦ 08/2019
Содержание GAS 222.21 Ex2
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