Macurco RD-6 Instructions D'utilisation page 20

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Assembling the Regulator, Hose and Test Hood
1. Open the FTK. Connect the 300 ppm gas cylinder to the regulator.
2. Connect a 6 inch piece of tubing from the non-sponge end of the humidifier to the test hood.
3. Connect the sponge end of the humidifier to the tubing from the regulator
Testing the Fan Relay
1. Remove the Philips screw on the front of the RD-6. Remove the front cover.
2. Check the pressure gauge on the regulator. If you have 25-psi or less you will need to replace the gas canister.
3. Place the Test Hood over the gas sensor.
Note: The time to activate the Fan relay depends on the delay setting.
4. Turn on the regulator to start the gas flow and wait with the gas applied continuously.
5. With the display function turned "On", the RD-6 will show the current concentration of gas or "0" (zero) in clean air. When the gas
concentration reaches the Fan Relay setting (100 ppm, for example) the display will flash back and forth between "FAn" and "100".
With the display function turned "OFF", the display does not show the gas concentration, but will show "FAn" as long as the fan
relay is activated.
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