User Guide

IDLE MODE

During idle mode the device performs only measurements

but it does not activate relays in order to control the process

or let out a control signal to the analog output.

In a normal situation the alarm relay is energized (no alarm

condition) and the green LED is ON, the red LED is also fixed

ON to warn users the device is not controlling the process,

the yellow LEDs are OFF.

Moreover, the alarm relay could be de-energized upon an

error (whether that happens or not, depends on the custom-

ized alarm configuration; see “Alarm” section for more details).

Nevertheless, the error due to alarm threshold overtaking

does never generate an alarm during idle mode since all the

control functions have been disabled by the user.

The red LED flashes in any case upon an error.

Idle mode is useful to disable control actions when the exter-

nal devices are not properly settled or whenever any fault

circumstance is detected.

To set the meter to idle mode it is sufficient to disable the

control mode (setup item C.00 to “OFF”).

When measurements are in overflow, the upper or lower range

limit is shown on the LCD with blinking digits.