Prior to bump testing or calibrating a G7 or G8 device equipped with either a Cl₂ gas sensor, or both Cl₂ and SO₂ gas sensors using G7/G8 Dock, update G7/G8 Dock's configuration settings in Blackline Live as follows:

• Configure inlet 1 to Cl₂.

  Note:

  Inlet 1 is optimized for Cl₂(and other highly reactive gases) based on order of gas calibration or bump testing.

• Configure the pump inlet speed for Cl₂ to 80%.

• If applicable, configure inlet 3 to SO₂.

Once G7/G8 Dock is configured in Blackline Live, set up the dock as follows:

• Use Teflon lined tubing (ACC-FEP-T2) to connect the Cl₂ gas cylinder to inlet 1, making sure the tubing between the dock and gas cylinder is of the shortest length possible.

• Use a stainless-steel regulator, or a regulator with a Viton valve seat and seals (ACC‑DFR-V), on the Cl₂ gas cylinder.

Before placing a device into the configured G7/G8 Dock, you should:

• Ensure that the device has been switched on, left in fresh air, and hasn’t been bump tested or calibrated in the last 15 - 20 minutes.

• Verify that the Cl₂ sensor and, if applicable, the SO₂ sensor, are reading zero ppm, and if they are not, complete a zero of the device in fresh air.

For detailed information on how to bump test or calibrate your device using G7/G8 Dock, refer to the G7/G8 Dock Technical User Manual.

The notification can be muted but you should not attempt to fresh air zero the sensor. The Cl₂ reading should revert to zero within 20 minutes, depending on the device’s exposure to fresh air. Alternatively, use a single-gas calibration cap attached to a Cl₂ gas cylinder to apply a burst of Cl₂ gas directly to the Cl₂ sensor for 5 - 10 seconds.