Macurco CM-6 User instructions - page 16
16
FIELD CALIBRATION PROCEDURE
Note: For optimum calibration results the unit should be in clean air and be in a low ambient air flow.
1. Remove the Philips screw on the front of the CM-6. Pull the front cover of the unit off.
2. Assemble the 200 ppm gas cylinder and regulator together.
3. Check the pressure gauge on the regulator. If you have 25-psi or less you will need to replace the gas
canister.
4. Place the test Hood from the regulator over the CO sensor.
5. Push Next 3 times to get to the CAL menu then push Enter. The display will flash back and forth between
GAS and 200.
6. Start applying gas to the CO sensor.
Note: The sensor will look for the gas for 45 seconds. If no gas is applied or detected in that time, the
display will return to CAL.
7. When the sensor detects the gas, the display will flash back and forth between the CO concentration and
SPn, then the calibration will progress and the display will show the gas level for a maximum of 165
seconds.
8. When the calibration is successful, the display will flash back and forth between CO concentrationand
PAS, thenthe display will show the calibration gas level and the calibration is done.
9. If the calibration fails, the display will flash back and forth between the CO concentrationand FAL (fail). If
this occurs, check the pressure gauge on the regulator. If the pressure is less than 25 psi the flow of gas
may not be adequate to properly calibrate the unit. If there is proper pressure in the cylinder repeat steps 4
through 6. If the unit fails to calibrate twice contact Technical Assistance: 1-877-367-7891.
10. Once the calibration has passed, remove gas and disassemble the cylinder and regulator.
11. Re-assemble the CM-6 (make sure the LED is aligned with the front case hole). You are done.
12. See Calibration Flowchart on the inside of the housing.
MACURCO FIXED GAS DETECTION PRODUCTS LIMITED WARRANTY
Macurco warrants the CM-6 gas detector will be free from defective materials and workmanship for a period of
two (2) years from date of manufacture (indicated on the inside cover of the CM-6), provided it is maintained
and used in accordance with Macurco instructions and/or recommendations. If any component becomes
defective during the warranty period, it will be replaced or repaired free of charge, if the unit is returned in
accordance with the instructions below. This warranty does not apply to units that have been altered or had
repair attempted, or that have been subjected to abuse, accidental or otherwise. The above warranty is in lieu
of all other express warranties, obligations or liabilities. THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR PARTICULAR PURPOSE ARE LIMITED TO A PERIOD OF TWO (2) YEARS FROM THE
PURCHASE DATE. Macurco shall not be liable for any incidental or consequential damages for breach of this
or any other warranty, express or implied, arising out of or related to the use of said gas detector. Manufacturer
or its agent’s liability shall be limited to replacement or repair as set forth above. Buyer’s sole and exclusive
remedies are return of the goods and repayment of the price, or repair and replacement of non-conforming
goods or parts.
Manufactured by Aerionics, Inc.
Round Rock, Texas
Email: info@aerionicsinc.com
Phone: 1-877-367-7891
Rev 5.14.2012
© Aerionics 2012. All rights reserved.
Macurco is a trademark of Aerionics, Inc.