Instruction manual

Page 35
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 shown below
Step 3 Keep the pressure at the air socket to atmospheric pressure.
Step 4 While holding the START STOP key, turn on the power switch. "0" blinks.
Release the START STOP key. "0" stops blinking.
Step 5 Squeeze the inflator bulb until the cuff pressure reaches 50 mmHg.
Check 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 150 mmHg.
Check the difference is within
+
3 mmHg.
Step 7 Squeeze the inflator bulb until cuff pressure reaches 250 mmHg.
Check the difference is within
+
3 mmHg.
Step 8 Release the cuff air, turn off the TM-2430 and disassemble the check system.
The blood pressure recorder is a precision instrument. Contact your nearest
A&D dealer, if you need repair.
START STOP switch
Power switch
TM-2430 Accuracy
Diagnostic Kit
A rigid cylinder
Exhaust valve and
adjustment screw
Inflator bulb
Cuff
Mercury sphyg-
momanometer
Recorder