Lab-Line 314, Operation Manual, Page: 28 / 49

28
INSTALLATION:
(Con’t)
STANDARD AND SIPHON TYPE CO
2
GAS CYLINDERS
STANDARD TYPE (CORRECT) SIPHON TYPE (INCORRECT)
2
1 1 3 5
2 4 6
7
3 8
1. Compressed Gas Association
1. Warning tag indicating that
#320 connector. cylinder is siphoning type.
2. Gas head space. 2* Aluminum ring.
3. Liquid CO
2
filled to 68% 3* Gold band.
equal weight of water that 4* Stamp or marking on cylinder:
cylinder would hold at 60ºF. "Siphon" or "Eductor Tube".
5* Valve should be of special type for
service.
6* Withdrawal tube draws up the liquid
CO
2
.
7* Gas head-space.
8* Liquid CO
2
filled to 68% equal weight of
water that cylinder will hold at 60ºF.
* NOTE : SOME GAS SUPPLIERS WILL HAVE NO MARKINGS TO INDICATE AN "EDUCTOR
TUBE" OR "SIPHON" TYPE CYLINDER—BE SURE TO ORDER DRY, LAB-GRADE CO2.
Be sure to obtain a dual-stage regulator from the gas supplier for the CO
2
tank that is to be installed according to local codes. Connect ¼" ID (6.35 mm)
flexible tubing to the regulator. Connect the other end of the tubing to the unit's
CO
2
inlet (located on the back top panel). Insert tubing over hose barb and
fasten with an appropriate clamp to assure a proper connection. Adjust the
regulator for 5 psi when CO
2
is to be injected into chamber. For optimum results,
do not exceed or reduce this pressure.