User Manual for Vital Signs Monitor
48
Chapter 9 Troubleshooting
9.1 No Display on the Screen
Shut down the machine and unplug the power. Use a universal meter to check if the outlet has proper voltage,
if the power cable is in good condition, and if the power cable is properly connected with this apparatus or
outlet. Remove the fuse from the back cover of this machine, and make sure it is in good condition.
9.2 Excessive ECG Signal Interference or Too Thick Baseline
1. Check if the plate electrodes are properly located, and if valid plate electrodes are used.
2. Check whether the lead wires are inserted properly. If no ECG curve is displayed, check if the ECG
lead wires are broken.
3. Make sure the mains outlet has standard grounding wire.
4. Check if the grounding wire of the apparatus is properly grounded.
9.3 No Blood Pressure and Pulse Oxygen Measures
1. Check if the blood pressure cuff is properly wrapped around the arm according to the operating
instructions, if the cuff leaks, and if the inlet is closely connected with the NIBP jack on the side
panel. Check if the indicator of the pulse oxygen probe flashes and if the pulse oxygen probe is
properly connected to the SpO
2
jack on the side panel.
2. If the problems still exist, please contact the local dealer.
9.4 Blank Printing Paper
1. Check whether the printing paper is installed with its face reversed. Please reinstall it and let the
sensitive page face upward.
2. If the problems still exist, please contact the local dealer.
9.5 System Alarm
1. When the parameter value is higher or lower than the alarm limits, the alarm will ring. Please check
whether the alarm limit value is proper or the condition of the patient.
2. Probe off. Please check the connection of the probes.
Note: In case of trouble of this machine in the service, follow the instructions below to eliminate the
problem first. If the attempt fails, contact the dealer in your local area or the manufacturer. Do not
open the cabinet without permission.
