Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A

5.3 M300M Internal Variables

The M300M software contains many adjustable parameters. Many of the parameters are set at time of manufacture and do not need to be adjusted for the lifetime of the instrument. It is possible to change these variables either through the RS-232 port or the front panel. Altering the values of many of the variables, especially those not listed on Table 5-3,will adversely affect the performance of the instrument. Therefore it is recommended that these variables not be adjusted unless you have a clear understanding of the effects of the change.

To access the VARS menu press SETUP-VARS-ENTR. Use the PREV-NEXT button to select the variable of interest and press EDIT to examine/change the value, then press ENTR to save the new value. If no change is required, press EXIT.

Table 5-3: M300M Variables

No.

Name

Units

Default

Value

Description

Value

Range

 

 

 

 

0

DAS_HOLD_OFF

MIN

15

0 - 20

DAS hold off duration after

 

 

 

 

 

calibration or diagnostic

 

 

 

 

 

 

1

DYN_ZERO

 

OFF

OFF/ON

Enable to adjust zero

 

 

 

 

 

calibration through remote

 

 

 

 

 

contact closure

 

 

 

 

 

 

2

DYN_SPAN

 

OFF

OFF/ON

Enable to adjust span

 

 

 

 

 

calibration through remote

 

 

 

 

 

contact closure

 

 

 

 

 

 

3

RS232_MODE

Bit Field

8

0 - 99999

Value is SUM of following

 

 

 

 

 

decimal numbers:

 

 

 

 

 

1=enable quiet mode

 

 

 

 

 

2=enable computer mode

 

 

 

 

 

4=enable security feature

 

 

 

 

 

8=enable front panel RS-232

 

 

 

 

 

menus (API protocol)

 

 

 

 

 

16=enable alternate protocol

 

 

 

 

 

32=enables multi-drop

 

 

 

 

 

support

 

 

 

 

 

64=Enable modem

 

 

 

 

 

4096=enable command

 

 

 

 

 

prompt

 

 

 

 

 

 

4

CLOCK_ADJ

Sec.

0

±60

Real-time clock adjustment

 

 

 

 

 

 

5-7

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Teledyne instruction manual 5.3 M300M Internal Variables, 3 M300M Variables