Installation Instructions
16
User Manual CPM II2066en Rev.B
© BTG 2019
2.5.2
HCM-8000 / 8010 Connections
The Hart communication module (HCM-80xx) is using HART
®
protocol.
NOTE!
Before installation, ensure that all power to the system has been turned off.
Cable connections must be made by authorized personnel.
NOTE!
Fig 8 shows resistance as a function of supply voltage. The grey area is
accepted. The resistance is the sum of cable- and power source- resistance in
the current loop. The HART
®
communication requires a minimum resistance of
250
1. Insert the signal cable through the cable gland.
2. Connect the cable to the HCM-80xx as shown in Fig 11 or Fig 13.
NOTE!
The connection blocks can be released from the connection module for easier
access, as shown in Fig 9 below.
3. Connect the shield to the upper connection point on the shield filter module
(SFM-8000).
CAUTION!
The cable shield must always be connected to the upper connection point on
the shield filter module, and kept separated from the transmitter cable shield.
DANGER
Hazardous voltage
in the equipment
Fig 8 Analog Out 4-20 mA
Analog Out (DCS) 4-20 mA
0
8
14
250
35 (Max)
V
730
1200
W
24
A
Fig 9 Releasing the
connection blocks
