Toxalert ToxCO/1/M/A Calibration Procedures

Brand: Toxalert

Model: ToxCO/1/M/A

Type: Calibration Procedures

TOX-CO/1/M/A CO SENSOR CALIBRATION SET-UP

TOOLS REQUIRED:

• Tank of calibration gas (usually 200ppm CO)

• 0.2 LPM regulator

• Wetter bottle

• Calibration cover and tubing

• Milliamp meter

PROCEDURE:

1. Fill water bottle half full of tap water.

NOTE: MAKE SURE THAT WATER BOTTLE IS BELOW SENSOR SO THAT

WATER IS NOT FORCED INTO CO SENSOR.

2. Screw the regulator on to the tank of calibration gas.

3. Press the sensor calibration cover inside the sensor shield for a snug fit.

CALIBRATION CHECKING:

NOTE: SENSOR MUST BE CONTINUOUSLY POWERED FOR 72 HOURS PRIOR

TO CALIBRATION.

1. Connect a milliamp meter in series with the output signal that is capable of reading 4 to 20

milliamps. (A controller or other instrument may already be attached, and may be used

instead of the meter).

2. Start the gas flow by pushing in and turning the control knob on the regulator.

3. The sensors electronics reads the CO concentration every 2.5 minutes, therefore allow the

gas to flow for at least 10 minutes to allow the ambient air to be flushed out and an

accurate reading can be taken.

4. Using 200 ppm CO test gas, the milliamp reading should be apprx.12mA after 10 minutes

of continuous gas flow.

5. Upon completion of the test, ensure that the tank valve is off and remove the calibration

cover from the sensor.

TOXALERT TOXCOCALKIT

WATER BOTTLE

1/8" I.D. TUBING

SETUP

TEST GAS

CAP

0.2 LPM REG

CONTROL BUTTON-

PUSH IN AND TURN

TO START GAS FLOW

DO NOT ADJUST

MIXING VALVE-

TOX-CO/1/M/A CALIBRATION

200ppm CO TOX-CO/1/M/A

Toxalert International, Inc.; P.O. Box 159; Mound, MN. 55364 ● Phone: 952-472-4541 ● Fax: 952-475-4960

Toxalert ToxCO/1/M/A Calibration Procedures

Brand: Toxalert

Model: ToxCO/1/M/A

Type: Calibration Procedures

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Toxalert ToxCO/1/M/A Calibration Procedures

Toxalert ToxCO/1/M/A Calibration Procedures

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