Section 4
Page 4 - 20
MODEL 346 INSTALLATION AND OPERATION MANUAL
HA243821
Issue 5 Mar 98
4.9.11 CUSTOM CURVE LINEARISATION (Cont.)
POINT CONFIGURATION
Point Pair ?
XX
This display is used to select which of the 11 Point Pairs used to define the curve, is to be configured. The up/
down arrow keys are used to define the relevant number, and the ENTER key is operated to call the next configu-
ration page:-
Note...
All eleven point pairs must be configured whether or not they are all used.
Pt. XX Signal
X.XXXX
‘Entry’ of the point-pair number calls the above display for setting the pair input signal value. This value must be
set in the same input values as the Channel which is to use the curve. The value is set using the up/down/side
arrow keys. Once the value has been entered, the page-down key is operated to call the next configuration page.
Pt. XX Units
X.XXXX
Operation of the page-down key after defining the signal value, calls the above display for setting the pair range
units value. This value must be set in the same units of measure as the channel which is to use the curve. This
value is entered using the up/down/side arrow keys. Operation of the clear key causes a return to the point-pair
definition page, where the number of the next pair to be configured is entered.
COLD JUNCTION POINT PAIR CONFIGURATION
CJ Point Pair ?
N
The up/down/side arrow keys are used to select a CJ point-pair for configuration. The subsequent pages allow a
three-point Cold Junction Compensation (CJC) curve for use with a thermocouple customer curve. The compen-
sation curve is active only if input type ‘Thermocouple’ is selected for the channel which is to use the customer
linearisation table. Operation of the ENTER key calls the first CJC configuration page.
CJ N mV.
XX.X mV
The up/down/side arrow keys are used to enter the millivolt equivalents of the lowest (CJ1), midpoint (CJ2) and
highest (CJ3) ambient temperatures that the recorder will encounter whilst using a customer-entered thermocou-
ple linearisation table. The page-down key is operated to call the next configuration page.
CJ N Temp
XX.X ˚C
The up/down/side arrow keys are used to enter in degrees Celcius, the lowest (CJ1), midpoint (CJ2) and highest
(CJ3) ambient temperatures that the recorder will encounter whilst using a customer-entered thermocouple lin-
earisation table. The page-down key is operated to call the next configuration page.
4.9.12 EXTERNAL CJC TEMPERATURE
Ext. CJC Temp.
_0.0 ˚C
The up/down/side arrow keys are used to enter the a value in degrees Celsius, for the external CJC choice made
during channel configuration.