MOM5002 氧电极MODULAR OXYGEN MONITOR

 

 

User manual

MODULAR OXYGEN MONITOR

MOM5002

 

 

 

1. GENERAL DESCRIPTION

The Billups-Rothenberg, Inc. (BRI) of Modular Oxygen Monitors (MOM5002) is a range of factory calibrated oxygen sensors which measure ambient pO₂ levels using the principle of electrochemical sensors by oxygen. BRI’s sensors benefit from low power operation, traditionally associated with electrochemical sensors, while providing a much longer lifetime due to the non-depleting sensing principle. All O2 sensors are oxygen pressure and temperature compensated, enabling accurate operation over a wide environmental range without the need for additional calibration. Unlike other oxygen sensor technologies, the MOM5002 of oxygen sensing devices, are very stable and do not contain lead or any other hazardous materials.

 

 

This User Manual contains important safety information and should always be available to those personnel operating this equipment. Read, understand, and retain all instructions before operating this equipment to prevent injury or equipment damage.
  Every effort was made to ensure the accuracy of the information contained within this manual; however, were tain the right to modify its contents without notice. If you have problems or questions after reading the manual, stop and call Billups-rothenberg (877) 755-3309 or (858) 535 0545 for information

 

2. SPECIFICATION

     Cas No:                            MOM5002

Range: Display Accuracy: Sensor Type: Expected Sensor Life, Room Air: Power: Response Time: Operating Temperature: Storage Temperature: Pressure: Humidity:

0.5-2 L/min 0.1% Electrochemical 12 Months 9 V Alkaline Battery Less Than 6 Seconds to 90% of Final Value 32-104°F (0-40°C) 32-122°F (0-50°C) Sensitive to Partial Pressure 0-99% RH (Non-Condensing)

Note: All specifications are at ambient / sea level, 77°F (25°C)

 

3. BENEITS

The modular oxygen monitor is designed to measure oxygen levels directly from high-pressure cylinders in the range 0.1-100.0% O2. No sampling hoses or accessories are necessary. The modular oxygen monitor is designed as a quick check device to test and verify that previous readings with another analyzer are correct. The modular oxygen monitor uses a digital display with low power consumption, and an Off – On – Calibration knob.Power is provided by a standard alkaline 9-volt battery. The modular oxygen monitor uses an electrochemical O2 sensor to measure O2 content in gases. The sensor is disposable and user-replaceable, with a life expectancy of up to 24 months depending on usage. The sensor and battery are user replaceable. Calibration should always be performed at the same temperature and humidity conditions as the gas being measured. This is not always possible, for example, in a tropical environment where dry breathing gas from a high-pressure Scuba cylinder will be measured after Analyzer calibration has been performed in the warm, humid ambient air. Under these conditions a calibration correction value may be required, as detailed in the Appendix, or dry air must be used for calibration.

 

4.Operation
4.1. Open the silicone hole of the monitor for one minute at first. Then, turn the Off/On Calibration knob slowly until a slight hiss can be heard.
4.2. Turn the Calibration knob of modular oxygen monitor slowly until the reading to stabilize at 20.9% in ambient air.

4.3 If you cannot obtain a stable reading, check that you still have a very gentle flow of gas and repeat. If you still cannot obtain a stable reading see Troubleshooting section or use another analyzer.

4.4 Put on the modular oxygen monitor in the hypoxia chamber or another environmental box to check the percent of oxygen.

4.5 When you finish the experiment, please turn off the monitor and cover the silicone hole at once, to prevent exposure to the air, and prolong it’s lifespan.

NOTE: There is no need to re-calibrate the unit after analyzing a gas flow. Simply move to the next gas source or allow the reading to stabilize at 20.9% in ambient air.

 

5.Maintenance
5.1. During the first 12 months of the warranty period, the modular oxygen monitor should be returned to the dealer/manufacturer for repair. Your modular oxygen monitor should give you one year continuous operation with proper care before needing sensor replacement.
5.2. To clean the modular oxygen monitor use a damp soft cloth.
5.3. Although designed to be water-resistant the modular oxygen monitor should not be intentionally immersed in liquid or left outside unprotected.
5.4. The modular oxygen monitor is built to resist the effects of day to day shocks and drops but remember it is a precision oxygen analyzer and should be looked after carefully to give long trouble free service.
5.5. Protect the modular oxygen monitor from long periods of direct sunlight and do not subject it to high or low temperature extremes.
5.6. Battery Replacement – To replace the battery, open the battery case, Replace with new battery and reassemble it. Be careful not to pull too hard, as you can separatethe wires from the end cap and damage the modular oxygen monitor. 

DO NOT ATTEMPT THIS REPAIR ON YOUR OWN.

 

6. Troubleshooting

SYMPTOM	REASON	SOLUTION
Battery symbol	Low Battery	Change the battery
No display	Switched off Bad connection	Switch on Check display connection Check battery connection
Zero reading	Sensor disconnected Sensor expired	Check connection Change sensor
Reading erratic	Pressure on sensor Radio transmission Sensor old or faulty Condensation on sensor.	Check flow Move unit away Change sensor Dry in air
Reading does not change when calibration knob is turned	Faulty connections Sensor failure	Check connections Change sensor
Display segments missing	Display faulty	Return to dealer
Will not calibrate	Sensor faulty Sensor not in air High altitude	Change sensor Check flow adapter Use altitude calibration procedure
Reading drifts	Rapid temperature change	Stabilize temperature & recalibrate

 

 

7.Calibration Correction Values for Temperature and Humidity

Oxygen Analyzer calibration should always be performed at the same temperature and humidity conditions as the gas being measured. Where this is not possible, a calibration correction value may be required. A common example is a tropical environment where dry breathing gas from a high-pressure Scuba cylinder will be measured after Analyzer calibration has been performed in the warm, humid ambient air.

To determine if a calibration correction value is required, you must first know the temperature and relative humidity of the air in which calibration will be performed. Using the chart below, find the atmospheric oxygen percent value corresponding to your temperature and relative humidity. If the oxygen percent value falls in the
shaded portion of the chart, calibrate the Analyzer to the corrected chart value.

 

 

 

 

 

 

ATMOSPHERE OXYGEN PERCENT IN RELATION TO TEMPERATURE AND RELATIVE HUMIDITY
TEMPERATURE (oF) -->	32	40	50	60	70	80	90	100	110	120
TEMPERATURE (oC) -->	0	4	10	16	21	27	32	38	43	49
10	20.9	20.9	20.9	20.9	20.8	20.8	20.8	20.8	20.7	20.7
20	20.9	20.9	20.8	20.8	20.8	20.8	20.7	20.6	20.5	20.4
30	20.9	20.8	20.8	20.8	20.7	20.7	20.6	20.5	20.4	20.2
40	20.8	20.8	20.8	20.7	20.7	20.6	20.5	20.4	20.2	19.9
50	20.8	20.8	20.8	20.7	20.6	20.5	20.4	20.2	20.0	19.7
60	20.8	20.8	20.7	20.7	20.6	20.5	20.3	20.1	19.8	19.5
70	20.8	20.8	20.7	20.6	20.5	20.4	20.2	19.9	19.6	19.2
80	20.8	20.8	20.7	20.6	20.5	20.3	20.1	19.8	19.5	19.0
90	20.8	20.7	20.7	20.6	20.4	20.3	20.0	19.7	19.3	18.7
100	20.8	20.7	20.6	20.5	20.4	20.2	19.9	19.5	19.1	18.5
H20 at 100% RH	0.6	0.8	1.2	1.8	2.5	3.4	4.7	6.5	8.6	11.5

If the Temperature and Relative Humidity axis meet in the shaded part of the chart, calibrate to the chart O2 level or with dry air to maintain 0.5% O2 accuracy in NITROX.

To use the correction value, follow the standard Calibration procedure except as follows:
• Make sure Oxygen Sensor is exposed to the ambient temperature and humidity corresponding to the correction value.
• Adjust the Calibration Adjustment Screw to achieve a Display reading equal to the correction value.
• Once you have calibrated the monitor for temperature and humidity using the, your readings for gas analysis should be correct with no further adjustment.
• Re-calibrate monitor for any changes in temperature or humidity of the ambient environment or the gas being analyzed.
Note that the calibration correction value is never used when the temperature and humidity conditions of the gas being measured are the same as the conditions during calibration.

 

8.Warranty
Billups-rothenberg inc. extends a limited warranty, which warrants the modular oxygen monitor to be free from defects in materials and workmanship under normal use and service for a one year. The modular oxygen monitor sensor is warranted about one year. This warranty is nontransferable.
  Billups-rothenberg inc. will, at its discretion and according to the terms as set forth within, replace or repair any materials which fail under normal use and service and do not exhibit any signs of improper maintenance, misuse, accident, alteration, weather damage, tampering, or use f or any other than the intended purpose. Determination of failure is the responsibility of
Billups-rothenberg inc., which will work together with the customer to adequately address warranty issues. When any materials are repaired or replaced during the warranty period, they are warranted only for the remainder of the original warranty period.
This warranty shall be void and Billups-rothenberg inc. shall have no responsibility to repair or replace damaged materials resulting directly or indirectly from the use of repair or replacement parts not approved by Billups-rothenberg inc.

Pro-Rated Terms:
Billups-rothenberg inc. warrants the oxygen sensor for a period of twelve (12) months from date of purchase. The warranty covers the sensor only and is prorated as follows:
• 0 – 12 Months Free Replacement
A warranty registration card, supplied with system documentation, must be filled out and submitted to Billups-rothenberg inc.  for the warranty to be registered. If the warranty registration card is not received within ten (10) days of purchase, the warranty
will begin with the date of manufacture by Billups-rothenberg inc.
Maintenance Items:
Any materials which are consumed, or otherwise rendered not warrantable due to processes applied to them, are considered expendable and are not covered under the terms of this policy. This includes the 9-volt battery used in the modular oxygen monitor

Return Policy:
Application for warranty service can be made by contacting Billups-rothenberg inc. during regular business hours and requesting a Return Material Authorization number. Materials that are found to be defective must be shipped, freight pre-paid, to Billups-rothenberg inc., California. Upon inspection and determination of failure, Billups-rothenberg inc. shall exercise its options under the terms of this policy. Warranty serviced materials will be returned to the customer via Billups-rothenberg inc. preferrd shipping method ,at Billups-rothenberg’s expense. Any expedited return shipping arrangements to be made at customer’s expense must be specified in advance.
Limitation of Warranty and Liability:
  Repair, replacement or refund in the manner and within the time provided shall constitute Billups-rothenberg’ s sole liability and the Purchaser’s exclusive remedy resulting from any nonconformity or defect. Billups-rothenberg shall not in any event be liable for any damages, whether based on contract, warranty, negligence, strict liability or otherwise, including without limitation any consequential, incidental or special damages, arising with respect to the equipment or its failure to operate, even if Billups-rothenberg inc.has been advised of the possibility thereof. Billups-rothenberg inc. makes no other warranty or representation of any kind, except that of title, and all other warranties, express or implied, including warranties of merchantability and fitness for a particular purpose, are hereby expressly disclaimed. No salesman or other representative of Billups-rothenberg has authority to make any warranties.