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.
START STOP switch
Recorder
Power switch
TM-2430 Accuracy
Diagnostic Kit
Step 4
Turn on the power switch, when you press and hold the
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
Inflator bulb
Cuff
Exhaust valve and
adjustment screw
A rigid cylinder
Page 30
(not included)
Mercury sphyg-
momanometer
3 0 0
2 8 0
2 6 0
2 4 0
2 2 0
2 0 0
1 8 0
1 6 0
1 4 0
1 2 0
1 0 0
8 0
6 0
4 0
2 0
0
START STOP
key.
Maintenance