Maxtec R229P01-024 Bedienungsanleitung Seite 10

3.1 Blender Safety Check
NOTE: Before proceeding, ensure that the high alarm set point control is OFF [display reads
(--)], and that the low alarm set point control is below 20%.
PROCEDURE
1. Connect the blender to 50 ±5 PSIG air/oxygen gas
sources. Adjust the blender control knob to 60%.
Turn the bleed toggle switch on (up position) and
adjust the flowmeter to a minimum of 2 LPM.
2. Disconnect the 50 PSIG AIR source from the MaxBlend 2.
NOTE: The blender must be flowing
gas for the alarm to activate.
3. Reconnect 50 PSIG AIR source to the MaxBlend 2.
4. Disconnect 50 PSIG OXYGEN source
from the MaxBlend 2.
5. Reconnect 50 PSIG OXYGEN to the MaxBlend 2.
6. Adjust both air and oxygen inlet regulators to 0 PSIG.
7. Remove air inlet hose at regulator and
insert end into beaker of water.
8. Slowly raise pressure of oxygen regulator
to 50 PSIG and back to 0 PSIG while
observing air hose end in beaker.
9. Dry and reattach air inlet hose to regulator.
10. Remove oxygen inlet hose at regulator,
and insert end into beaker of water.
11. Slowly raise pressure of air regulator to
50 PSIG and back to 0 PSIG while observing
oxygen hose end in beaker.
12. Dry and reattach oxygen inlet hose to regulator.
4.0 TROUBLESHOOTING
PROBLEM: Oxygen concentration discrepancy between oxygen concentration selection knob
and actual reading on display, greater than 3%.
POTENTIAL CAUSES AND SOLUTIONS:
Bleed is turned off. Turn bleed toggle switch on. Refer to section 2.9, Flowmeter
•
Operation.
Monitor out of calibration. Calibrate. Refer to section 2.8, Calibration Procedure.
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Sensor exhausted. Replace sensor. Refer to section 6.2.
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Gas supply contaminated. Contact Maxtec for repair of the MaxBlend 2.
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Blender out of calibration. Contact Maxtec for repair.
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PROBLEM: Pressure differential alarm sounding.
POTENTIAL CAUSES AND SOLUTIONS:
Inlet pressure differences of 20 PSI or more. Correct pressure difference.
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Pressure alarm not calibrated properly. Contact Maxtec for repair.
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MaxBlend 2 blender operation out of calibration. Contact Maxtec for repair.
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PROBLEM: Inlet pressure has supply loss, no audible pressure differential alarm.
POTENTIAL CAUSES AND SOLUTIONS:
Reed alarm cap damaged or defective. Contact Maxtec for repair.
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ENGLISH
PROBLEM: Selected oxygen concentration accurate only when gas pressures are equal.
POTENTIAL CAUSES AND SOLUTIONS:
PROBLEM: Blank display.
BLENDER RESPONSE
POTENTIAL CAUSES AND SOLUTIONS:
No response. Monitor
display reads 60% ±3%.
PROBLEM: Partial or distorted display.
Audible alarm sounds. Monitor
POTENTIAL CAUSES AND SOLUTIONS:
display reads 100% ±3%.
Audible alarm stops.
PROBLEM: Sensor will not calibrate.
Verify the monitor display
POTENTIAL CAUSES AND SOLUTIONS:
reads 60% ±3%.
Audible alarm sounds. Monitor
display reads 20.9% ±3%.
Audible alarm stops.
PROBLEM: Sensor will calibrate, but takes too long or does not return to 21% ±2% oxygen in air
Verify the monitor display
(2 to 5 minutes) when performing calibration.
reads 60% ±3%.
POTENTIAL CAUSES AND SOLUTIONS:
No response.
No response.
PROBLEM: Sensor will calibrate, but reading at any constant level drifts more than ±3% over
No bubbles should
a 24 hour period.
be observed. Audible
POTENTIAL CAUSES AND SOLUTIONS:
alarm sounds.
No response.
No response.
No bubbles should
PROBLEM: Low battery icon.
be observed. Audible
POTENTIAL CAUSES AND SOLUTIONS:
alarm sounds.
No response.
PROBLEM: E01: Sensor voltage is too low to perform a valid calibration.
POTENTIAL CAUSES AND SOLUTIONS:
PROBLEM: E02: No sensor attached.
POTENTIAL CAUSES AND SOLUTIONS:
PROBLEM: E03: No valid calibration data available.
POTENTIAL CAUSES AND SOLUTIONS:
PROBLEM: E04: Battery below minimum operating voltage.
POTENTIAL CAUSES AND SOLUTIONS:
10
MaxBlend 2 balance module not functioning properly. Contact Maxtec for repair.
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Batteries not installed. Install batteries. Refer to section 2.1.1, Battery Installation.
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Battery completely dead. Replace batteries. Refer to section 2.1.1, Battery Installation.
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Monitor defective. Contact Maxtec for repair.
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Monitor damaged. Contact Maxtec for repair.
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Sensor cell exhausted. Replace sensor. Refer to section 6, Replacing O2 sensor.
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Sensor cable defective. Return to Maxtec.
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Monitor defective. Contact Maxtec for repair.
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Disposable oxygen sensor damaged or defective. Replace sensor. Refer to section 6.2,
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Replacing O2 sensor.
Barometric pressure change since last calibration. Recalibrate. Refer to section 2.8,
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Calibration Procedures.
Room or gas temperature went below 59°F (15°C) or above 104°F (40°C). Correct
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temperature and recalibrate.
If, at any time, the low battery icon is displayed on the LCD readout, the batteries
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should be replaced as quickly as possible.
Manually attempt a new calibration. Refer to section 2.8, Calibration Procedures.
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If unit repeats this error more than three times, contact Maxtec's Customer Service
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Department for possible sensor replacement.
Disconnect the sensor and reconnect, making sure the male plug is fully inserted into
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the receptacle. The analyzer should now perform a new calibration with the error
cleared.
If the error still persists, remove the batteries, wait 30 seconds, then reinstall, to
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perform a factory reset and diagnostic on the analyzer. The analyzer should again
perform a new calibration with the error cleared.
Contact Maxtec Customer Service Department if the error code cannot be cleared.
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Make sure unit has reached thermal equilibrium and perform a calibration routine.
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Refer to section 2.8, Calibration Procedures.
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