ABB WaterMaster Manual page 31

WaterMaster
Electromagnetic flowmeter
Referring to Fig. 4.21:
1. Confirm that the cartridge to be fitted is of the correct power supply and for the correct
communications bus type (HART, PROFIBUS or Modbus) by checking the label
the cartridge:
– AC cartridges have one black label on the cartridge side.
– DC (and low voltage AC) cartridges have two red DC labels – one on the cartridge side and
one on the cartridge rear plate.
2. Align the three cartridge screws
until the cartridge is held in position.
3. If necessary, rotate the cartridge to the required orientation before refitting the cover – see Fig. 4.8,
page 18 for details.
4. For high integrity / security installations, set DIP switch SW1 to the 'ON' (Read-only) position – see
Fig. 4.20, page 28.
5. Align the transmitter cover with the housing and tighten the four cover screws
6. For high integrity / security installations or where MID is required, fit anti-tamper seals to the security
D
fixtures .
C
C
D
Fig. 4.21 Refitting the Cartridge and Cover
IM/WM–EN Rev. M
B
with the cartridge housing pillars and tighten the screws carefully
B
D
C
B
C
D
A
D
B
24V
Black Label on
AC Cartridge Side
4 Electrical Installation
A
on the side of
C
carefully.
Red Label
On DC (and
Low Voltage
AC) Cartridge
24V
Rear Plate
Red Label on DC
(and Low Voltage AC)
Cartridge Side
29