Honeywell 9782 Series - Manual (Page 90)

Conductivity/Resistivity Analyzer/Controller
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/99 6-8
WARNING
While the unit is powered, a potentially lethal shock hazard exists inside the case. Do not
open the case while the unit is powered. More than one switch may be required to
disconnect power.
Table 6-4 Procedure for Wiring Relays
Step Action
1 If you have not already noted the relay assignments made during I/IO setup, go to I/O
SETUP on the main menu to view the display showing relay output use. Note the
assignments shown. You must wire the unit to match these assignments in order for the
unit to work as expected. (See Section 5.)
2 Turn off the power to the Analyzer/Controller. More than one switch may be required
to remove power.
3 With the power off, open the case:
•
Grasp the bottom center portion of the front bezel and pull it downward and toward you
slightly to disengage the bottom of the bezel from the edge of the case.
•
Lift the bezel gently to disengage it from the top edge of the case.
•
Swing the bezel to the left. (The bezel and display assembly is mounted on pivot arms.)
The safety cover with its warning label will be visible.
4 With the power off remove the safety cover by removing the single screw holding it in
place.
5 Wire the relays in accordance with the system setup assignments. Refer to the wiring
diagram provided with the external device receiving the output and to Figure 6-1.
WARNING
An external disconnect switch is required for any hazardous voltage connections to the relay outputs.
6 Replace the safety cover and secure it with the screw.
7 Close the case and power up the unit. Do not apply power until the case is closed.