ADM-870C 07/14/0912
FLOW ONLY
FLOW ONLY will be displayed if the operator inserts the FlowHood flaps plug while the meter is in a velocity or
differential pressure mode and presses the READ key.
HALT
This message will be displayed when an automatic reading, automatic reading storage, or TREND mode sequence
has been halted manually by holding down the READ key. The individual readings, or the average, total, minimum
and maximum of the readings, may now be displayed if the auto-reading memory function is being used.
If the TREND mode is being used, the meter will switch back to manual reading mode and the last reading displayed
will be a standard manual reading.
LIGHT OFF
This message indicates that the display back-light has been turned off. Battery time is extended when the back-light
is turned off.
LIGHT ON
This message indicates that the display back-light has been turned on. Battery time is reduced when the back-light
is turned on.
LOCAL DENS
This message indicates that flow or velocity readings will be corrected for local air density. The meter automatically
starts up in the local density mode, unless the meter was last turned off with readings stored in the standard density
mode.
LOCHARGE
This message indicates that the battery cells are nearing the end of their useful charge. The meter will continue to
function normally for about twenty minutes, depending on light use, before recharge is required. The third character
of all displayed readings will become the symbol for an empty battery cell. For example, FP 983 will be displayed
as FP
983, when meter is registering LOCHARGE.
LS CORR
This message indicates that the air flow measurement is in liters/sec and will be backpressure compensated.
LS UNCORR
This message indicates that the air flow measurement is in liters/sec and will not be backpressure compensated.
MANUAL
This message may be one of the parameters displayed following SHIFT/SHIFT and indicates that individual readings
are being taken. The meter is not being used in either automatic reading or memory mode.
MEM EMPTY
This message indicates that the meter is in STORE mode, but no readings have been saved.
METRIC
This message indicates that the readings will be in metric units. Pressing the SHIFT key and then the UNITS key
will switch the meter to English units. The meter will save the units selection (metric or English) and will automatically
default to the selected units the next time it is turned on.
NEG PITOT
This message indicates an invalid, negative, pitot tube velocity reading. This may result from reversed tube
connections to the meter, or from other conditions described in the section on PITOT TUBE VELOCITY
MEASUREMENT.
NO FLAPS
This message advises that the flaps plug on the FlowHood has not been connected to the meter for air flow
measurements. The meter senses the position of the flaps through the flaps plug.
NO LIGHT
This message will appear as part of the NO LIGHT/BATTERY/TOO LOW sequence, when the battery charge is too
low to support use of the backlight.
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