10 WS-TOX-H2S Hydrogen sulfide detector
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10.1
Calibration
Check the calibration using the same procedure explained in chapter 8.1.
We recommend the use of Tedlar sampling bags for injecting the calibration
mixures.
For the check of the zero, a bottle of Nitrogen or synthetic air can be used.
For the check of the span, you can use a mixture containing between 10 and 25
ppm.
If the calibration check fails (error > 5%), it is recommended to calibrate the
detector. Follow the procedure below.
1)
Switch on the fluxmeter and start a measurement with FluxManager, in
order to get the pump flowing.
2)
Let the instrument warm-up, with pump on, for 30 minutes.
3)
Start the Calibra application. If the app is not installed on the device,
install it following the same procedure indicated in chapter 3.1 The Calibra
app is freely available on Google Play Store.
4)
The app shows the Bluetooth devices in
range. Tap on the serial number of the
fluxmeter (WS1801 in the example) in
order to start the connection.
The Bluetooth LED should turn from flashing
to steady blue.
