+24VDC IN (Terminal 1)
0V (Terminal 3)
4-20mA (Terminal 5)
Earth Terminal
MOD BUS Drain (Terminal 9)
MOD BUS A (Terminal 10)
MOD BUS B (Terminal 11)
Field Wiring
Excel Receiver
Wiring
EXCEL
RECEIVER
LOCAL JUNCTION BOX
(mounted on Reciever mounting plate)
DVC100(M) JUNCTION BOX
(mounted in a convenient and accessible position)
GREEN / YELLOW (EARTH)
Same potential as Excel body and conduit
ORANGE (A)
BLUE (B)
RED +24V
WHITE (4-20mA)
BLACK (0V)
CABLE SCREEN
CABLE SCREEN
LOCAL JUNCTION BOX
(mounted on Receiver mounting plate)
ORANGE (A)
BLUE (B)
RED +24V
WHITE (4-20mA)
BLACK (0V)
EXCEL
RECEIVER
DVC100(M) MK2 JUNCTION BOX
(mounted in a convenient and accessible position)
GREEN/YELLOW (EARTH)
Same potential as Excel body and conduit
GREEN/YELLOW (EARTH)
ORANGE (A) TB1/3
BLUE (B) TB1/2
RED (+24V) TB2/1
WHITE (4-20mA) TB2/3
BLACK (0V) TB2/5
CABLE SCREEN
CABLE SCREEN
RS485 (B) (Blue) (Terminal 8)
RS485 (A) (Orange) (Terminal 7)
4-20mA (White) (Terminal 6)
0V (Black) (Terminal 4)
+24VDC (Red) (Terminal 2)
Earth Terminal
3. INSTALLATION AND OPERATION
3.3.5 Remote Installations
For remote or difcult-to-access installations, the DVC100(M) MK2 or DX100(M) can be
positioned in a convenient location by using an intervening junction box (e.g. Hawke/Bartec)
attached to the receiver's mounting plate. Alternatively an SHC Calibrator Connector System
(part number 2104B6250) can be used that enables connection of the SHC1 up to 10 meters
from the receiver.
A maximum cable length of 1km between the unit and the DVC100(M) MK2 or DX100(M) is
permissible (RS485 compliant).
The connections are as follows.
Wiring with DVC100(M) MK2
The earth bonding arrangement must
ensure that the maximum peak voltage
between the unit case earth and any
eldcableconductorislessthan350V.
Voltages in excess of this can cause
permanent damage to the unit's RFI
protectionlters.
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