Honeywell Searchline Excel Technical Handbook page 21

MAN0530 Issue 10 - 11/09
2104M0506
3. INSTALLATION AND OPERATION
3.3.5 Remote Installations
For remote or difficult-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
EXCEL
EXCEL
RECEIVER
RECEIVER
(mounted on Receiver mounting plate)
(mounted on Reciever mounting plate)
GREEN/YELLOW (EARTH)
GREEN / YELLOW (EARTH)
Same potential as Excel body and conduit
Same potential as Excel body and conduit
ORANGE (A)
ORANGE (A)
BLUE (B)
BLUE (B)
RED +24V
RED +24V
WHITE (4-20mA)
WHITE (4-20mA)
BLACK (0V)
BLACK (0V)
(mounted in a convenient and accessible position)
(mounted in a convenient and accessible position)
Field Wiring
+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)
Excel Receiver
Wiring
CABLE SCREEN
CABLE SCREEN
Earth Terminal
GREEN/YELLOW (EARTH)
+24VDC (Red) (Terminal 2)
ORANGE (A) TB1/3
0V (Black) (Terminal 4)
BLUE (B) TB1/2
4-20mA (White) (Terminal 6)
RED (+24V) TB2/1
RS485 (A) (Orange) (Terminal 7)
WHITE (4-20mA) TB2/3
RS485 (B) (Blue) (Terminal 8)
BLACK (0V) TB2/5
LOCAL JUNCTION BOX LOCAL JUNCTION BOX
CABLE SCREEN
CABLE SCREEN
DVC100(M) JUNCTION BOX
DVC100(M) MK2 JUNCTION BOX
21
Searchline Excel
The earth bonding arrangement must
ensure that the maximum peak voltage
between the unit case earth and any
field cable conductor is less than 350V.
Voltages in excess of this can cause
permanent damage to the unit's RFI
protection filters.