NGA-2000 System Calibration

3.4.5 Time controlled System Calibration

To activate a time controlled system calibration we have to set-up this in an own menu page.

System configuration and diagnostics...

↓

System Calibration...

↓

Times for interval operation...

↓

-- Times for Interval Operation --

Zero-Cal is:

DISABLED

Start of interval time:

2 h

Interval time:

24 h

Zero/Span-Cal is:

ENABLED

Start of interval time:

10 h

Interval time:

168 h

Program-Cal is:

DISABLED

Start of interval time:

16 h

Interval time:

168 h

Next calibration events...

 

SCSTZERO

SCBGNZERO SCIVZERO SCSTZEROSPAN SCBGNZEROSPA SCIVZEROSPAN SCSTPRGM SCBGNPRGM SCIVPRGM

For the 3 different SYSCAL-modes there is the possibility to

∙enable/disable the activation

∙determine start of time calculations (start time of current day)

∙determine in which time intervals after start time the activation is done

Attention:

Other than in some AM-functionalities the interval time is to be input as interval hours. For example, for a weekly calibration you have to calculate 24 h * 7 = 168 h.

The logic for the time calculations is as follows.

The basic is the respectively parameter „Start of interval time“SIV( -time). By changing this SIV-time or changing the „interval time“ IV( -time) the basic is new calculated as date of current day and time of the SIV-Time (only entire hours possible). This basic stays valid (also after a program reset!) until new values for SIV-time or IV-time are entered.

Basic-time = SIV-Time of current day

The next start of SYSCAL (ACT-time) happens at

ACT-time = Basic-time + n x IV-time

(n = 0,1,2,3,...)

Is the basic time-time before present point of date/time then there are added further IV-times until it is later.

90003482(2) [NGA-e (MLT-Software 3.2.X)] 07/98

NGA 2000

Supplement - 21