Shortridge Instruments AIRDATA ADM-880C Operating Instructions Manual Download

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ADM-880C 07/20/09

OVER VEL

This display advises the operator that the velocity measurement being attempted is beyond the range of the meter.
[OVER VEL] may also be displayed if internal voltage settings are out of proper range. (Contact the factory if the
meter continues to read [OVER VEL] at inappropriate times).

PITOT TUBE

This signal will be flashed when the pitot tube measurement mode is selected, and also upon each subsequent
operation of the READ key.

PRESS READ

Please refer to [TIMED RDY / PRESS READ].

PRINTER s

This prompt is displayed when the operator has selected the PRINT mode. If an appropriate printer is connected
to the RS232 jack on the meter, and the READ key is pressed, the entire contents of the memory will be downloaded
to the printer.

PRINTING

This message is displayed when the operator is printing readings from memory.

PROBE

This message is displayed following ALT / ALT if the TemProbe is connected.

RATIO ERR

This message advises the operator that the backpressure compensated air flow measurement, which is in process,
is invalid because the numerical ratio of the two parts of the measurement sequence exceeds the predetermined
limits. Normally, this means that the operator has made a procedural error, or that a dynamic change (such as a
changed damper setting) has occurred between the two parts of the backpressure compensated air flow
measurement process.

READING

This is part of the ASSOCIATED reading sequence and precedes the final display of the primary reading selected
by the user.

RECHARGE

This message signals that the batteries have reached the end of their useful charge, and must be recharged. The
meter will turn off following the display of [RECHARGE / SHUT DOWN].

REPLACE s

This message is displayed when the operator has pressed ALT / STORE / ALT / STORE followed by the STORE
key while viewing stored readings. This message indicates the current reading displayed will be replaced with a new
reading when the operator presses the READ key.

REPLACING

This message is displayed when the current reading displayed is being replaced with a new reading.

SHUT DOWN

The meter will display [SHUT DOWN] and turn itself off if the battery charge becomes too low or if the meter is
exposed to temperatures beyond the specified limits.

STATS

This message is displayed when the user selects a reading stored in memory, and then presses the VIEW key. The
sum, average, minimum, maximum and standard deviation of all readings of the same measurement mode within
that memory group will be displayed sequentially.

STD 70

F or STD 21.1

This message will be flashed during air flow or velocity measurements performed without the TemProbe. The
resulting flow or velocity value will be calculated using the standard temperature, 70

F or 21.1

C. The correction

for the ambient barometric pressure will still occur.

STD DENS

This message indicates that readings will be calculated to display standard density sea level equivalent (mass flow).
It will also be displayed during the actual measurement interval.