ABB DressPack IRB 6640, Product Manual

Page: 188 / 370

2.6.3 Return water flow switch setting
Introduction
The mechanical flow switch is pre-set at delivery to 8 liters/min at 0.2 MPa water
pressure.
If the water pressure exceeds 0.2 MPa, the setting cannot be done with the
graduation on the window name plate, as the pressure affects the measured flow.
Please perform the setting as described in the following procedure.
Settings
The procedure below details how to set the mechanical flow switch.
Note Action
Open the solenoid valve on the water inlet. 1
Water flow is indicated on the scale of the
flow control valve. 2
See section Return water flow control on
page 187 .
Adjust the water flow to the level where the
Flow switch shall give alarm. Use the red
adjusting knob on the scale of the flow
control valve. 3
xx0600003346
To adjust the set flow on the mechanical
Flow switch, remove the grommet on the
upper cover and rotate the flow adjusting
gear by using a flat screwdriver.
Turning clockwise will increase the set flow
and turning counterclockwise will decrease
the set flow. 4
Parts:
• A: Flow switch
xx0600003355
Depending on initial value, increase or de-
crease the set value until the
g_flow_ok
changes, by observing the Process Signals
window on the FlexPendant.
Note
The indicated flow level may differ from real
flow as the flow switch is affected by the
water pressure.
5
• Process Signals window
Refit the grommet on the flow switch. 6
Continues on next page
188 Product manual - DressPack/SpotPack IRB 6640
3HAC028638-001 Revision: K
© Copyright 2007-2018 ABB. All rights reserved.
2 Installation
2.6.3 Return water flow switch setting