Esco CelCulture CO2, User Manual, Page: 17 / 42

7
CO
2
Incubator
2.2.4 Shelves System Installation
Pilasters are held against the chamber walls using thumbscrews.
There are 2 pilaster models – the shelf railing holders in the front
pilasters (2) is open upward, while the one in the back pilasters (1)
are open toward the back of the unit.
Shelf railings (3) are installed by sliding them in the shelf railing
holders in the back pilaster, then the front.
Slide in the shelves (4) in the openings of the shelf railings
2.2.5 Connecting the Unit to Electrical Power
Plug the provided power cord to the power inlet at the rear of the unit. Connect the power cord to the building
outlet and turn ON the power switch of the outlet if necessary.
Note: Refer to the serial number tag located on the right side of the cabinet for electrical specification. Ensure the cabinet is
connected to the correct power source.
2.2.6 Connecting the Unit to CO
2
and N
2
Gas Supply
CO
2
gas supply cylinder and N₂ gas supply cylinder (for suppressed O
2
model) should be industrial grade 99.5%
pure and without siphon tube. Install a 2-stage pressure regulator to the tank outlet. The inlet pressure must
be regulated to 15 psig (103.4 kPa).
Use the Connection Hose Kit provided in the Accessories Kit Box. A 0.2 micron in-line filter (1) is
provided to remove any contaminants in the CO
2
gas
supply. Check all fittings for leaks.
Connect one end of the tubing to the barb fitting at
the rear of the cabinet labeled CO
2
Inlet #1 and install
the clamp (2) to properly secure the tubing. For
Suppressed O
2
model, connect another tube to the
N
2
Inlet #1.
Connect the other end of the tubing to the outlet of
the 2-stage pressure regulator and install the clamp
(2).
Note: Make sure that the pressure in the two stage gas is
regulated to 15 psi or 103.4 kPa.
If unit is equipped with a built-in gas backup system, there will be 2 gas inlets. Each of the inlets should be
connected to individual gas tanks as described above.
Note:
Consult your facility safety officer to ensure that the equipment is installed in accordance to your local regulations
and code.
2.2.7 Connecting Alarm Contacts and RS485 Communication Port
A set of relay contacts located on the rear of the unit is provided to monitor for
temperature, humidity O
2
or CO
2
alarms. The terminals provided on the alarm contact allow
for a NO (normally open) output, a NC (normally closed) and COM (common) connection. In
the event of an alarm condition or power failure, the NO contact will close, and the NC
contact will open. Once the alarm is cleared, the contacts return to their normal condition.
To activate this function, see
section 3.3.12. Relay Activation .
The RS485 provides serial communication port for PC. It can be daisy chained from product
to product and connected to PC.
1
2
To unit
To tank
2
1
3
4