Maintenance Checking Accuracy - A&D TM-2430 Instruction Manual

Maintenance
Checking Accuracy
Required equipment
Accurate office mercury sphygmomanometer or aneroid gauge with inflation system.
TM-2430 Accuracy Diagnostic Kit (TM2430-90).
A rigid cylinder sized to fit the cuff pressured.
Steps for checking accuracy
Turn off the TM-2430 and remove the air hose from the unit.
Step 1
Construct the check system as this drawing
Step 2
START STOP switch
Recorder
Power switch
TM-2430 Accuracy
Diagnostic Kit
Keep the pressure at the air socket to atmospheric pressure.
Step 3
Turn on the power switch, when you press and hold the
Step 4
The TM-2430 blinks the "0" of measurement value.
Squeeze the inflator bulb until cuff pressure reaches to 50 mmHg.
Step 5
Check the difference between the blinking display of TM-2430 and mercury
sphygmomanometer that is within + 3 mmHg.
Squeeze the inflator bulb until cuff pressure reaches to 150 mmHg.
Step 6
Check this difference that is within + 3 mmHg.
Squeeze the inflator bulb until cuff pressure reaches to 250 mmHg.
Step 7
Check this difference that is within + 3 mmHg.
Release the cuff air, turn off the TM-2430 and remove them.
Step 8
This blood pressure recorder is a precision instrument. Contact your nearest
A&D office for this inspection, if you need repair.
Cuff
Exhaust valve and
adjustment screw
A rigid cylinder
Page 33
Mercury sphyg-
momanometer
Inflator bulb
START STOP
key.