Servomex Xentra 4900 User Manual

5.14
Table 5.11 Setting the NO
x
conversion parameters
L MENU to obtain top level menu
CALIBRATE/
SETUP
ALARMS/FAULTS
L < ENTER
SET ALARM/ASSIGN
DISPLAY/UTILITY
L ? < ENTER
ENTER PASSWORD
0000
To change the value of a digit L > or ?
To change to another digit L = or <
When the number shown is correct L ENTER
UTILITY 1
UTILITY 2
L ? ENTER
UTILITY 2
I1 Oxygen % 8
To select desired gas sensor module
L > or
?
then L ENTER, if only one module is fitted
this section will be omitted.
LOW & HIGH TOL
NOx DERIVATION
L ? ENTER
I1 NOx LINEAR
COEF 00.000
Enter the required linear term coefficient (a).
Any digit position may be used for the decimal
point.
To change the value of a digit L > or ?
To change to another digit L = or <
When the value shown is correct L ENTER
I1 NOx SQUARE
COEF
00.000
Enter the required square term coefficient (b).
Any digit position may be used for the decimal
point.
To change the value of a digit L > or ?
To change to another digit L = or <
When the value shown is correct L ENTER
LOW & HIGH TOL
NOx DERIVATION
L MEASURE to return to measurement
display.
5.11 Serial output communications
This sections details the configuration of the serial outputs communications via the 9
way D type plug ( PL6 ) located on the rear of the instrument. The serial output option
operates by transmitting a data frame to the RS232 output port at a user defined
interval. The format of the data frame is a semi colon separated list of process
variables terminated by <carriage return><line feed>. The data frame is time and date
stamped. An example of the data frame format is given in figure 5.2. The example
shows the output from a 4902 instrument configured with a single gas stream fitted with
a Gfx1210 CO transducer and a Pm1156 O
2
transducer. The format of the process
variables is the same as is displayed on the screen including the same number of
decimal places in the output number. The data frame could be sent to either a dumb
terminal, a distributed control system ( or PC ) or a serial printer.

Servomex Xentra 4900 Specifications

General

Brand	Servomex
Model	Xentra 4900
Category	Analytical Instruments
Language	English