7.2.5.SETUP-VARS Menu

The VARS menu allows viewing and editing of various global setup variables that effect how the M465M operates. These variables are stored in the instrument’s non-volatile memory. Table 7-6lists these variables and their function.

 

 

 

 

Table 7-6: VARS List

 

 

 

 

 

 

 

 

 

VAR

 

 

Meaning

 

Default

 

 

 

 

Value

 

 

 

 

 

 

 

 

 

 

Controls the latching behavior of

 

 

ALARM MODE

 

the concentration alarms. See

LATCHING

 

 

Section 7.1.3 for additional

 

 

 

 

 

 

 

 

 

details.

 

 

ALARM DELAY

 

Number of readings above alarm

5

 

 

limit required to trigger alarms

 

 

 

 

 

 

 

 

 

Boxcar filter length for

 

 

 

 

 

concentration filter. Higher

 

 

BC FILT SIZE

 

values will smooth out the

30

 

 

 

 

concentration readings but will

 

 

 

 

 

also increase the response time.

 

 

FLOW SWITCH

 

Enables/disables operation of

OFF

 

ENABLE

 

optional flow switch

 

 

 

 

COMM ADDRESS

 

MODBUS address for COM

1

 

 

ports.

 

 

 

 

 

 

UNIT

 

Concentration unit-of-measure

PPM

 

 

setting.

 

 

 

 

 

 

 

 

 

Adjustment for display scroll

 

 

SCROLL DELAY

 

delay. Higher values result in

20

 

 

 

 

slower scrolling speed.

 

 

AZERO ENABLE

 

Enables/Disables auto-zero

ON

 

 

calibration

 

 

 

 

 

 

AZERO INTERVAL

 

Time interval for performing the

6

 

 

auto-zero calibration (minutes)

 

 

 

 

 

 

 

 

 

Molecular weight of carrier gas

 

 

 

 

 

(ie. feed gas for ozone

 

 

GAS CARRIER

 

generator.) This value is only

 

 

 

used for the calculation of wt%

32

 

WEIGHT

 

 

 

concentration units. It is not

 

 

 

 

 

 

 

 

 

 

used for PPM or g/Nm3

 

 

 

 

 

calculations.

 

 

ANALOG RANGE

 

Full-scale concentration range.

5000

 

 

Used to scale the analog output.

 

 

 

 

 

 

 

 

 

 

 

 

Range

LATCHING,

NON-

LATCHING

1 - 20

1 - 30

ON, OFF

1 - 247

PPM, WT%,

g/Nm3

6 - 100

ON/OFF

3 - 1440

20.0 – 40.0

5 – 50 g/Nm3

1000 – 9999 PPM

0.5 – 5.0 wt%

P/N 06160D DCN6409 Teledyne API Model 465M O3 Monitor Instruction Manual - Page 40

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Teledyne 465M instruction manual SETUP-VARS Menu, Meaning Default Value, Range