What to do if 'AIR CAL. FAIL' displays on my Riken Keiki OX-07?
If your Riken Keiki Monitor displays 'AIR CAL. FAIL' during fresh air adjustment, it could be due to: * Fresh air not being supplied to the unit; ensure a fresh air supply. * The O2 sensor needing replacement; replace the sensor with a new one.
What to do if my Riken Keiki Monitor displays 'BATTERY FAIL'?
If the Riken Keiki Monitor displays 'BATTERY FAIL', it indicates a decrease in battery voltage. Turn off the unit and replace the batteries with new ones in a non-hazardous area.
Why won't my Riken Keiki OX-07 turn on?
There are several reasons why your Riken Keiki Monitor might not turn on: * The batteries may need to be replaced. * The battery polarity may be incorrect. * You might not be holding the POWER button long enough; press and hold it for about 1 second until the display appears. * The battery cover might be loose; make sure it is securely attached.
Details explosion protection ratings, operating temperature, certificate numbers, and applicable standards.
Lists critical warnings for safe operation and maintenance.
Indicates an imminently hazardous situation leading to severe injury or damage.
Denotes a potentially hazardous situation that could cause serious injury.
Highlights a potentially hazardous situation leading to minor injury or damage.
Provides advice or additional information regarding operation.
Lists crucial precautions for safe operation, maintenance, and handling.
Provides safety measures for use in hazardous areas to prevent electrostatic charges.
Identifies components visible from the front of the device.
Identifies components visible from the rear and bottom of the device.
Explains the elements displayed on the LCD screen during operation.
Step-by-step guide for installing and replacing batteries.
Step-by-step guide for installing and replacing the sensor.
Instructions on how to turn the device on and off.
Details the sequence of operations when the unit is powered on.
Guide on calibrating the device for accurate ambient air readings.
Explains how to switch between different display modes.
Instructions for attaching the alligator clip accessory.
Instructions for attaching the belt clip accessory.
Details different alarm types, thresholds, and patterns for Japanese and overseas specs.
How to acknowledge and reset active alarms.
Procedures to follow when a gas alarm is activated.
Explains system and sensor failure alarms and their handling.
How to respond to a low battery warning.
Routine checks to ensure the unit's functionality and condition.
Guidance on performing AIR and gas calibration and replacing batteries.
Guidance on proper disposal of the product.
Detailed technical specifications for the Japanese market.
Lists the standard accessories included with the product.
Lists available optional accessories for the product.
Defines terms like vol%, Calibration, PEAK, and alarm set points.
Describes work and inspection for maintaining performance.
General| Type | TYPE A |
|---|---|
| Detectable gas | Oxygen |
| Measuring range | 0～40vol% (Resolution : 0.1vol%) |
| Indicate accuracy (under an identical condition) | Within ±0.7vol% |
| Response time (under an identical condition) | Within 20 seconds(T90) |
| Continuous operation time | About 5000 hours (no alarm・no light at 25℃) |
| Various functions | LCD backlight/Peak hold display |
| Detection principle | Galvanic cell |
| Detection method | Diffusion method |
| Low alarm | 18.0vol% |
| Low-Low alarm | 18.0vol% |
| Over alarm | 40.0vol% |
| Gas alarm action | Latching-mode |
| Trouble alarm・Self diagnosis | System failure/Sensor failure/Low battery/ Calibration error |
| Trouble alarm action | Latching mode |
| Operating temperature and humidity | -20～50℃, below 95%RH (non-condensing) |
| Operating pressure | Atmospheric pressure (80kPa～110kPa) |
| Various indications | Battery icon |
| Gas alarm indication | Flashing light/Intermittent buzzer/Gas reading flashes/ Vibration |
| Trouble alarm indication | Flashing light/Intermittent buzzer/Content display |
| Gas concentration display | LCD digital display |
| Power supply | Alkaline batteries (Size AA)×2 pcs. |
| Explosion-proof structure | Intrinsically safe |
| Explosion-proof grade | ExiaⅡCT3X (TIIS) |
Weight and Dimensions| Outer dimension and Weight | Approx. 66(W)×114(H)×33(D)mm（Projection excluding） Approx. 230g (Excluding clip) |
|---|
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