MKS Stabil-Ion 370 Series, Instruction Manual, Page: 69 / 122

4 Preparing the Stabil-Ion System for Operation
4-11
Series 370 Stabil-Ion Instruction Manual - 370119
6. Press the SELECT key to store the new setting.
7. Press CANCEL to return to the control menu.
(Or press CANCEL again to return to the status display for the gauge tube
that is turned ON.)
8. To change the gas type label, open the
door and lift the label card from its slot
in the front panel. Gas type labels are
included in the mounting hardware
kit. See Figure 4-5.
See Section 4.3.3.3 on page 4-9 for
approximate programming of alternate gas
types using the scale factor.
4.3.3.5 Selecting Gas Type for the Convectron Gauge
The Controller comes standard with gas a programmed for N
2
and gas b programmed for Ar. To
select which gas table is used for CGA or CGB use the key sequence described below. Gas selection
is also available using the computer interfaces (see Section 4.14 on page 4-33) and using the
Remote Input (see Section 3.7.1 on page 3-9).
The default factory setting for this function is GAS a or N2 .
1. Press the
▼
arrow key until you see the control menu in the display.
2. Press the SELECT key to see the pressure range display.
3. Press the
▲
or
▼
arrow key until you see the CG gas type
display.
4. Press the SELECT key so that the gas type is flashing.
5. Press the
▲
or
▼
arrow key to select GAS type.
Figure 4-5 Control Unit Front Panel Showing Removal
of Units of Measure Label Card
Warning – If used improperly, Convectron Gauges can supply misleading
pressure indications that can result in dangerous overpressure conditions
within the system. For use with gases other than air or N
2
, consult the gas
type correction charts in Section 4.7.1 on page 4-19, or use a Memory
Module programmed with data for the specific gas being used.
Control
Menu
IG
2.13 -8
A
B
5.67 -2
745
O
I G 1
O
DEGAS
O
POWER
O
I G 2
TORR
1
2
3
4
5
6
N
2
Ar
Gas a
Gas b
Control
Menu
IG1 HIGH
PRESS. RNG
IG1 LOW
PRESS. RNG
or
CGA GAS a
N2
CGA GAS a
N2
CGA GAS b
Ar