ADM-860C 04/14/085
desired for either flow or velocity measurements. A retractile cord connects the TemProbe or the
MultiTemp to the temperature input jack for remote temperature sensing.
RESET SWITCH
The reset pushbutton switch is on the back of the meter in a recess near the upper left corner. This switch
is used to reset the meter in the unlikely event that the microprocessor becomes lost in its program. This
may occur if the meter is dropped, and may cause the keypad to become nonfunctional until the meter
is reset. If the meter continues to fall into "lockout", it may have been damaged, and should be returned
for repair. Press the reset switch once to restart the meter. Do not hold the switch down or press the
switch twice in close sequence.
PNEUMATIC PRESSURE INLETS
Two pneumatic pressure inlets positive (+) and negative (-) are centered on the back of the meter at the
top edge and may be connected to various pressure sources for the measurement of air velocity, flow,
or pressure. Sources include the FlowHood, AirFoil probe, VelGrid, pitot tubes, static pressure probes,
or any other pressure source not exceeding the safe limits for the meter. The negative (-) inlet senses
the static pressure during flow or velocity measurements, and also is used for direct absolute pressure
measurements.
SERIAL PORT JACK
When viewed from the front, the serial port jack is centered on the right side of the meter just below the
battery charger jack. The circular plug of a custom RS232 serial cable is connected here. The other end
of the cable provides a standard DB9 connection for a printer or computer.