Resol WMZ Manual page 4

WMZ
VBus board
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Electrostatic discharge can lead to damage of
electronic components!
1
| 4
accessory
RESOL refractometer set
For determining the concentration of glycol in the heat transfer medium
2
3
attention!
When the WMZ is connected to a controller, the
VBus master board has to be replaced with the
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VBus slave board!
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When several WMZ are cascaded and connected
to a datalogger or PC (see p. 10), only the VBus
master boards of the WMZs with the subaddress
1 or higher have to be replaced with the VBus
slave boards!
Warning
Switch off power supply and disconnect from
power supply before opening the housing!
1. Unscrew the cross-head screw of the cover and re move
the cover from the housing.
2. Unscrew the two lateral srews of the transparent shield
and remove the shield.
3. Pull out the board which has to be replaced carefully.
Replace with new board.
Carry out assembly in reverse order.
280 009 60
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