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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
Step 1
Turn off the TM-2430 and remove the air hose from the unit.
Step 2
Construct the check system as this drawing.
300
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
ON
OFF
SYS/INTERVAL
DIA
PULSE/TIME
AIR
AUTO
ON/OFF
START
STOP
0
1
2
0123456789
A rigid cylinder
Cuff
TM-2430 Accuracy
Diagnostic Kit
Inflator bulb
Exhaust valve and
adjustment screw
Mercury sphyg-
momanometer
Power switch
START STOP switch
Recorder
Step 4
Turn on the power switch, when you press and hold the
START STOP
key.
The TM-2430 blinks the "0" of measurement value.
Step 5
Squeeze the inflator bulb until cuff pressure reaches to 50 mmHg.
Verify that the difference between the blinking display of TM-2430 and
mercury sphygmomanometer is within ±3 mmHg.
Step 6
Squeeze the inflator bulb until cuff pressure reaches to 150 mmHg.
Verify that this difference is within ±3 mmHg.
Step 7
Squeeze the inflator bulb until cuff pressure reaches to 250 mmHg.
Verify that this difference is within ±3 mmHg.
Step 8
Release the cuff air, turn off the TM-2430 and remove the kit.
This blood pressure recorder is a precision instrument. Contact your nearest
A&D office for this inspection, if you need repair.
Checking Accuracy Maintenance
(not included)