26 Model 8710 DP-CALC
TM
Micromanometer and Model 8375 ACCUBALANCE
®
Air Balancing Tool
2. Press X until SETUP appears.
3. Press
.
4. Press X until BP.COMP appears.
5. Press
. The display shows whether back pressure compensation is on or off.
6. Press S or T to change the option. Options are: ON and OFF.
7. Press
. BP.COMP is displayed.
8. Press ESC to return to the main display.
Take Back Pressure Compensated Hood Readings
When back pressure compensation is turned on, the sequence of taking flow readings with the capture
hood is somewhat different.
1. Open the flap in the capture hood base.
2. Hold the capture hood to the diffuser being measured to capture its air flow.
3. Press READ on the meter face or the red “Read Switch” on the left side of the hood base. READ
OPEn flashes on the display.
4. When the open-flap reading is done, CLOSE tHE FLAP is displayed.
5. Close the flap and press READ (or the Read Switch). READ CLOSEd flashes on the display.
6. When the closed-flap reading is done, the backpressure compensated flow is displayed.
7. If you want to save the flow reading to log memory, press SAVE now. STORE is shown on the
display, then the saved reading is shown.
8. Before pressing any more buttons, open the flap.
9. If the display mode is set to SINGLE, pressing READ now will start a new backpressure
compensated reading.
If the display mode is set to RUNAVG, pressing READ now will measure and display a running
average of non-backpressure-compensated readings. Press READ once more to start a new
backpressure compensated reading.
Set Deadband On and Off
The deadband determines the velocity or volume measurement threshold for displaying 0. If the deadband
is ON, readings below 18 fpm (0.0914 m/s) or 18 cfm (30.58 m
3
/h, 8.49 l/s) will be displayed as 0. If the
deadband is OFF, readings down to 0 will be displayed. The default is set to ON.
1. Press
to display CHANGE Test ID.
2. Press X until SETUP appears.
3. Press
.
4. Press X until DEADbAnd appears.
5. Press
. The display shows whether DEADbAnd is on or off.
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