Figure 97. CO2 Zero Reset on N2 (a – b - c).
Figure 99 shows how to connect LEO to N2 cylinder equipped with a pressure regulator. Note that the
Calibration Kit and Tube-A are required to assure the correct gas flow rate. Follow the instructions below to
connect LEO to the N2 cylinder with pressure regulator:
1. Connect the clear connector of Tube-A to LEO gas inlet port with icon (1 in Figure 99)
2. Put the cap on LEO gas inlet port with icon (2 in Figure 99)
3. Connect the end the Calibration Kit to red connector of Tube-A (3 in Figure 99)
Figure 98. Calibration Kit connected to Tube-A.
4. Connect end of the Calibration Kit to the gas cylinder (4 in Figure 99).
5. Okolab recommends the use of a purge tube attached to LEO gas outlet port (5 in Figure 99). The purge
tube has to be placed in a well ventilated environment. You can use the supplied additional tube as tube
for purging.
6. Set 1.0 barg (14.5 psig) on the pressure regulator of the gas cylinder (6 in Figure 99).
Note ► Do not exceed 1.5 barg (22 psig).
Tip ►Use the fitting tubes and additional tubes in order to allow the compatibility of the supplied tubing
with the gas port of your gas cylinders.
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