A&D Ambulatory Blood Pressure Monitor Maintenance, Checking Accuracy, Required equipment

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.

(not included)

Recorder		START STOP switch
									PO	TS
										TAS
									TR
								O/	NO
								FF	A		Cuff
								TOU
				MIT/ESLAUID
							P
R I	A		E			NI/	SY	S
			VAR		ET
		L
Power switch											A rigid cylinder
TM-2430 Accuracy
Diagnostic Kit

Mercury sphyg-
momanometer
Inflator bulb	300
	280
	260
	240
	220
	200
	180
	160
	140
Exhaust valve and	120
	100
adjustment screw	80
	60
	40
	20
	0

Step 4

Turn on the power switch, when you press and hold the

The TM-2430 blinks the "0" of measurement value.

START STOP

key.

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 Page 30 Maintenance