TSI Instruments AccuBalance 8370, Operation And Service Manual

Page: 19 / 58

Set Up 11
1. Flow units : CFM (cubic feet per minute), l/s (liters per second),
and m3/hr (cubic meters per hour). The A
CCU
B
ALANCE
indicates
flow already corrected to "standard" conditions (see Appendix A).
2.
Flow value : See specifications for range and resolution.
3.
Flow direction arrow : Indicates if supply or return air flow
calibration is being utilized by the A
CCU
B
ALANCE
.
Notice: Be sure this arrow points in the direction of flow through the
A
CCU
B
ALANCE,
otherwise the measurements made will be
inaccurate. To change the direction of the arrow, press the
RETURN/SUPPLY
switch.
4.
Averaging mode : The "
AVERAGE
" message will appear on the
display when you have selected the three-second or six-second
averaging mode (See
Averaging Mode section later in this chapter).
5.
Hold indicator . The "
HOLD
" message will appear along with a
flow value after you have activated the
HOLD
button.
6. "
LOW BATTERY
". Displayed when batteries are getting near the
end of their useful life.
7 . "
BATTERY
" will appear along with a value on the display during
power-up to indicate the percent of battery life remaining.
Preparing the Instrument for Use
Hood Assembly
The A
CCU
B
ALANCE
is shipped from the factory partially assembled
with the 2 ft x 2 ft nylon hood attached to the base. If you wish to use
another hood size, see
Changing Hoods in Chapter 2.