Datex-Ohmeda F-LM1 Technical Reference Manual page 164

Datex-Ohmeda S/5 Light Monitor
NOTE: When the ground lead (RL, right leg) is disconnected, all the electrodes should show OFF.
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Document No. 8000060-1
Connect a 3-lead cable to the monitor.
Connect the leads together (e.g. to a screwdriver).
Select one lead (I, II or III) for display.
Detach a lead from the screw driver, and see that the monitor responds as described in the
table below. Connect the lead again and check that the "Leads off" message disappears.
Lead selection
Lead I
Lead II
Lead III
Check that in any case the correspondence electrode (RA, LA or LL) shows off. Electrodes V
and RL show off all the time. In cases I and N, II and R, III and L all electrodes show off.
Connect the leads to a patient simulator.
The settings and checks with Dynatech Nevada MedSim 300 Patient Simulator:
ECG - BASE - BPM 160
ECG - PACE - WAVE NSR
Check that normal ECG waveform is shown, the HR value is 160 (±5) and the "Pacer count"
value is not increasing in the service menu. Check the lead selections by pressing the
ECG LEAD key on the module (not available in NESTRP type modules).
ECG - PACE - WAVE ASNC
Check that pacemaker markers are shown on the ECG waveform, the HR value changes to
75 (±5) and the "Pacer count" value is increasing according to shown pacemaker markers.
Lead to be detached
L/LA
R/RA
N/LL
L/LA
R/RA
N/LL
L/LA
R/RA
N/LL
Message
Leads off
Leads off
Leads off
Leads off
Leads off
Leads off
Leads off
Leads off
Leads off