Cermet II User’s Manual
18
97049 Issue 25.3, October 2016
OPERATION
3.2
Selecting the Engineering Units
1. Enter
the
PROGRAM UNLOCK
mode (Section 3.1).
2. Press
SETUP
and
to scroll through the menus.
The monitor can display Dew point in °C or °F, PPM(V), lbs/MMSCF or g/m3 (Natural
Gas). The selection of these units is achieved by setting
CODE 4
and
CODE 7
as shown
below:
Required Display Unit
CODE 7
CODE 4
Dew point in °C
000
207
Dew point in °F
000
217
PPM
V
100
-
lbs/MMSCF
200
-
g/m
3
(Natural Gas)
300
-
To set the range and resolution for PPM(V), lbs/MMSCF and g/m3 , set digit 3 of
CODE
7
to:
0
1
2
3
0
1 – 9999
0.1 – 999.9
0.01 – 99.99
0.001 – 9.999
For example, by setting
CODE 7
to 102, displays PPM
V
with a resolution of 0.01 to a
maximum of 99.99. Should the measured value exceed 100 PPM
V
with this setting,
oVEr
will be displayed.
3.3
Changing the Setpoint Values
1. Enter
the
SETPOINT UNLOCK
mode as described in Section 3.1.
2. Press
SETUP
and
simultaneously to access. The setpoints of the relays
are altered by setting
SP_n
(where n = 1 to 4 and represent SP1 to 4),
to the required trip level. These are entered directly in the appropriate
engineering units. When displaying PPM(V), then the setpoints are set in
PPM(V) units.
The full matrix of codes for alarm con
fi
guration can be seen in Appendix B, Setpoint
control.
