METRON QA-45, Руководство пользователя и обслуживания, Страница: 45 / 74

13. Measure and check that the voltage between the defibrillator
pads is 2 mV
±
50
µ
V. Choose ECG - by moving the cursor and
pressing SELECT (F4) . Measure and check that the voltage be-
tween the defibrillator pads is -2 mV
±
50
µ
V.
14. Set the power to Off, and wait 10 seconds. Measure and note
the exact value of the resistance between the defibrillator pads.
Requirement: 50 ohm (
±
0.5 ohm).
Set the power switch to ON while simultaneously holding down
function key 1, until the main menu appears. The main menu
will now be quickly replaced by the menu for calibrating resis-
tance. Adjust two measurement values by pr and -. The
values will be stored in QA-45's EEPROM when SAVE &
QUIT is pressed.
15. Set the power switch to Off. Remove the covers at J106 and
J107. Measure the resistance between TP101 and TP102.
Requirement: 2 MOhm (
±
2 kOhm).
Repeat the measurement for TP103 and TP104.
16. Replace the covers at J106 and J107. Check that the Mode
switch is set to Low. Measure the resistance between TP102 and
TP105.
Requirement: 2 kOhm (
±
2 ohm).
Measure the resistance between TP108 and TP100.
Requirement: 2 kOhm (
±
2 ohm).
17. Set the Mode switch to High. Measure the resistance between
TP102 and TP106.
Requirement 10 kOhm (
±
10 ohm).
Measure the resistance between TP109 and TP100.
Requirement 10 kOhm (
±
10 ohm).
18. Measure the resistance between TP102 and TP113.
Requirement: 200 kOhm (
±
200 ohm).
Measure the resistance between TPl14 and TP100.
Requirement: 200 kOhm (
±
200 ohm).
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