Endress+Hauser iTEMP TMT162 - Special Connection Instructions; Surge Arrester Function Test

iTEMP TMT162 Wiring
Endress+Hauser 19
1
2
3
4
A0010984
 9 Shielding and grounding the signal cable at one end with HART® communication
1
Supply unit
2 Grounding point for HART® communication cable shield
3 Grounding of the cable shield at one end
4 Optional grounding of the field device, isolated from cable shielding
5.4 Special connection instructions
If the device is fitted with a surge arrester module, the bus is connected and the power is
supplied via the screw terminals on the surge arrester module.
4
+
-
1
2
3
5
6
+
-
3
4
S1
3
S2
-
+
+
-
!
+
Sensor 2
Sensor 1
-
Bus connection and
supply voltage
A0033027-EN
 10 Electrical connection of surge arrester
5.4.1
Surge arrester function test
NOTICE
To perform the function test on the surge arrester module correctly:
‣
Remove the surge arrester module before performing the test.
‣
To do so, release screws (1) and (2) with a screwdriver as well as securing screw (3)
with an allen key.
‣
The surge arrester module can be lifted off easily.
‣
Perform the function test as shown in the following graphic.