Trip Amplifier 1/209
Software Description
4.5.2
Calibration
Jumper MODE = ENABLE (interrupts trip monitoring function)
Devices are calibrated ex works. Therefore recalibration is not normally required after
commissioning. An annual check is regarded as being sufficient. Range changes or live/
dead zero changes do not involve recalibration.
Recalibrate however after changing from current to voltage inputs or vice versa.
P791
P792
P793
P794
The device will prompt you to apply a full scale input signal. Use <ENTER> when ready.
Interrupt the calibration procedure at any time using <ESC>. Return jumper MODE to the
DISABLE position.
The calibration procedure eliminates the tolerances of the precision input resistors.
Conventional potentiometers have been replaced by non volatile EEPROM values.
4.5.3
Constants
P801 ... P820 contain constants K01 ... K20
Constants are stored in EEPROM and can be altered Online using the front push buttons
(see section "Special Operations"). Data will be retained upon loss of power.
4.5.4
Variables
P901 ... P920 contain variables X01 ... X20
Variables are stored in RAM and will be used for computed or interim values.
RAM contents will be lost upon loss of power.
calibrate analogue input 1
calibrate analogue input 2
calibrate analogue input 3
calibrate analogue input 4
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