Exchange Of Calibrated Module - vectus ALNOR Balometer Jr. Manuel Du Propriétaire

Figure 10: Removing
meter/Range Selector unit
6. Set range selector for low range in proper direction for air flow
through the Balometer Jr. Install LoFlow adapter screen on the side
of the manifold against which the air pressure will be felt.
7. Insert hex adjustment tool into adjustment hole (See Figure 10),
adjust until meter reading agrees with wind tunnel setting, and then
remove adjustment tool. Also remove the LoFlow adapter.
8. Move range selector to mid range; set tunnel for 500 cfm (800 cmh,
250 l/s); adjust as in step 7 until meter reading agrees with wind
tunnel setting; then remove adjustment tool.
9. Move range selector to high range; set tunnel for 1200 cfm (2000
cmh, 600 l/s); adjust as in step 7 until meter reading agrees with
wind tunnel setting; then remove adjustment tool.
10. Verify calibration against standard as required.
11. Modify setup so that flow through Balometer Jr. is in opposite
direction. Again make sure there are no leaks in the system.
12. Repeat steps 5 through 10 for air flow in this direction.

Exchange of Calibrated Module

If complete calibration facilities are not available, you may exchange the
range selector/meter assembly for one calibrated at the factory. (See parts
list for proper item number.) You may maintain multiple selector/meter
assemblies if desired, to minimize down time between calibrations. To
separate the selector/meter assembly from the base, remove the
attachment screws (see Figure 10), and then carefully slide the hoses off
the manifold to remove the assembly. The hoses should then be removed
from the selector/meter assembly and saved with the screws for use in
reassembly. To reattach, slide the hoses on the selector/meter assembly
and then gently slide the hoses onto the manifold. Use the screws to
secure the assembly to the base. Make sure that the top manifold hose is
attached to the hose nipple on the range selector closest to the center of
the base. Also examine manifold to verify that there are no cracks or
other sources of leaks.
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