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2. When the icon displays on the screen and its color is red, that means the alarm volume is 0 (alarm is
mute), at this time the user should pay more attention to the patient.
It is suggested that the users should not change the alarm volume lower than the factory default setting if
close and constant attention could not be paid to the patient, otherwise the negligence of alarm event might
cause irreversible harm to the patient.
During the alarm silence period, any new alarm event can activate the audible alarm again and the audible
alarm function resumes normal state.
After the alarm silence time counts down to 0, or the operator presses the Alarm Silence Key again, then the
system will resume to the audible alarm signal if this alarm condition still exists.
The alarm limit value should NOT be set to exceed the declared measuring or display range, or the system
alarm signal will not be generated.
3. Alarm settings are non-volatile, that means the previous settings will still sustain if the patient Gima Vital
Signs Monitor is powered off (by accidental power interrupt or by normal power down) and reboot.
4. When pressing the Alarm Silence Key, the system will stay on “Alarm Silence” status and this status will last
for 2 minutes.
5. It takes only 1 second from canceling alarm silence to resuming alarm sound.
Long press of Display View
key to enter into the Setup Menu screen, and move the cursor to each parame-
ter (such as SpO
2
, NIBP...) to make the high/low limit setting.
Limits setup: Move to the High or Low limits of the alarm settings, and press the “Alarm” silence key to turn
ON or OFF the alarm for the setting. The alarm silence indicator will reflect this with a yellow light showing
that alarms are silenced.
Refer to Chapter 11.2 for detailed default alarming values of all parameters and setup range.
Whenever the Gima Vital Signs Monitor is used, check the alarm limits to ensure that they are appropriate
for the patient being monitored.
When mains power supply is lost for not more than 30s, the alarm settings prior to the power interrupt will
sustain or be restored automatically.
5.5 Verifying Alarm Function
To verify the effectiveness of the alarm function, set the Gima Vital Signs Monitor working at “Demo” mode in
system parameter settings menu. Adjust the alarm limits or change alarm setting, then pay a close attention
to the alarm signal. If the visual and audible alarm indications appear according to your setting, it means the
alarm function is effective. Do NOT set the alarm volume lower than the background noise.
Chapter 6
TECHNICAL SPECIFICATIONS
6.1 ECG Monitoring
1. Input signals range in amplitude: ± (0.5 mVp ~ 5 mVp).
2. Heart rate display range: 15 bpm ~ 350 bpm.
3. Heart rate display accuracy: ± 1% or ± 2 bpm, whichever is greater.
4. Heart rate averaging: Averages the recent eight beats having RR intervals falling within the acceptable limits.
5. Heart rate alarm delay time: ≤ 10s.
6. Response time to change in heart rate:
Change from 80 bpm to 120 bpm: < 8 sec.
Change from 80 bpm to 40 bpm: < 8 sec.
7. Tall T-wave rejection: Rejects all T-wave less than or equal to 120% of 1mV QRS.
8. Sensitivity selection:
×1/4,
2.5mm/mV
tolerance: ± 5%
×1/2,
5mm/mV
tolerance: ± 5%
×1,
10mm/mV
tolerance: ± 5%
×2,
20mm/mV
tolerance: ± 5%
9. Sweeping speed: 25mm/s
tolerance: ±10%
10. ECG noise level: ≤ 30μVP-P.
11. ECG input loop current: ≤ 0.1μA.
12. Differential input impedance: ≥ 10MΩ.
13. Common-mode rejection ratio (CMRR): ≥105dB.
