6. Open - Main Menu → Calibration Menu.
7. Select - Cal. Type → Manual - Accept.
8. Select - Cal. Mode → Span or Zero - Accept (Depending on the option installed).
9. Adjust the regulator pressure until the flow meter on the Vent Port is between 0.5 and 1 slpm. This
is the excess calibration gas.
Return to Normal Operation
1. Select - Cal. Mode → Measure - Accept. (To return to sample measure).
2. Remove the flow meter on the Vent Port and connect a vent line.
3. Reconnect the instrument fittings and return to the original set-up.
The instrument is now in normal operation mode. When either zero or span calibration is initiated
(depending on which option has been installed) the instrument will automatically open the valves to
run a pressurised calibration.
5.9.2 Dual Pressurised Calibration Option
Set-Up of Dual Calibration Option
Figure 122 – Dual High Pressure Calibration Option
When using the dual pressurised calibration option, a high pressure zero cylinder should be connected
to the Pres In Port and a high pressure span cylinder connected to the Calibration Port.