9-9
Chapter 9 Maintenance Check
CO2 Calibration (HCP-810/HCP-820)
CO
2
Calibration (HCP-810/HCP-820)
This section describes about the procedure of CO
2
gas calibration.
Perform calibration for the following case.
When the measurement time exceeds 1,200 hours from the first use.
When 1 year has elapsed from the last calibration; or the accumulated EtCO
2
measurement time exceeds 4,000
hours, whichever comes earlier.
When error occurs to the measurement reading.
1
Press the [Menu], [CO
2
] ("Parameter"), [CO
2
Calibration] to display the CO
2
calibration screen.
2
Press the [Start Cal] key and conduct calibration
according to the displayed messages.
3
The message, <Feed CAL. GAS> will be displayed.
Press the injection button and inject the calibration gas.
4
The message, <Cal. Gas can be removed> will be
displayed. Stop pressing the injection button to cease
the injection.
5
The message, "CAL. OK" will be displayed. "Last Cal. Date" will be updated to the current date.
If any of the following messages is displayed, start the procedure again from step 2. <CAL. error>, <CAL
GAS error>, <Auto Zero fail>, <No stable gas flow>, <CAL. failure>
6
Press the [Cal Complete] key to end the calibration.
CAUTION
Perform the calibration 5 minutes after turning ON the power on the HCP-810/HCP-820.
Do not disconnect the sampling tube during calibration.If the sampling tube is
disconnected, calibration will cease.
Conduct CO
2
calibration for the following case.
When the accumulated measurement time exceeds 1,200 hours from the first use.
However, if the first calibration was performed before the accumulated measurement
time reaches 720 hours, another calibration is required when the accumulated
measurement time exceeds 1,200 hours from the first calibration.
When 12 months has elapsed or the accumulated measurement time has exceeded
4,000 hours from the previous calibration.
When EtCO
2
measurement is not stable or accuracy is degraded compared with other
measuring device.
When the patient monitor was not used for a while, or when EtCO
2
was not measured
for a while.
When a message, "Calibrate the CO
2
unit (HCP-810/HCP-820)" or "The periodic
calibration of the CO
2
unit (HCP-810/HCP-820) is approaching" is displayed at power
ON.
Dispose of calibration gas according to the regulation of each medical institution.
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