Technical Manual
Page 16
CODEL
OPS.109
Issue : B
Rev. : 1
Date : 23/10/13
Doc. i/d : 0109/6
Ref. : 090028
6. Commissioning
The instrument should now be fully installed and ready to be commissioned. This involves the following basic
procedures that should be carried out with the plant ON:
6.1. Pre-Commissioning Checks
Before proceeding the following checks should be carried out
:
-
If wiring has been installed and connected by others (and particularly if no certification of connection
accuracy exists), check all wiring and connections for conformity with the information provided.
-
Although the instrument is equipped with all practical safeguards against the consequences of
incorrect wiring, it is not possible to provide total protection against all errors.
Please be aware that damage arising from incorrect wiring will invalidate the warranty.
-
Finally check that the air purge is functioning. If not, take corrective action.
6.2. Introduction
Commissioning the instrument consists of the following procedures:
Power Supply Voltage
. 85V to 264V AC.
Apply Power
. Switch the power on and observe the power supply rail indications.
Alignment
. Align transducers using the integral adjustable mounts.
Gain Adjustment
. Check the automatic system gain.
Operating Parameters
. Set the operating parameters within the micro-processor for correct
instrument operation.
These commissioning procedures are now examined in further detail.
6.3. Power Supply Voltage
With the mains supply switched OFF unscrew the four captive screws in the cover of the SPU and open the
cover carefully.
DO NOT
unplug the ribbon cable
6.4. Turning the Power ON
Switch on the power supply. Ensure that the three, power indication LED’s illuminate. If not, check the fuse and
the supply.
Replace the cover of the processor, but do not fully tighten the signal processor screws until commissioning is
complete. The instrument will automatically select the normal display mode.
6.5. Alignment
No special alignment procedure is required. The transducers should, however, be as perpendicular to the wall of
the duct as possible by fully tightening the adjustable mount screws and locking bolts.