Elgas DATCOM, Руководство по эксплуатации

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Appendix
1: Device variant with the segment display
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LATCH – Freezing the Actual Values
The actual values measured are frozen at the display on pressing the key. The frozen values of
the quantities (Vb, Vm, P, T etc.) can be displayed in the standard way when displaying the actual
values. Press ESC to stop displaying frozen quantities.
The LATCH function should be used, for example, when manually copying the values of the
measured actual values when checking the accuracy of the device.
2.1.6 DIAG Menu Item – the Device Diagnostics
(serial number 8 of the main menu)
V menu DIAG Information on the device condition are stored in the DIAG menu.
ACT.ST. - Actual Status
This menu displays the actual state of the device. Pressing the RIGHT key shows all the current
errors and warnings of the device one after another.
SUM.ST. - Checksum
The checksum is used to monitor the occurrence of active error states (individual device status
bits) since the last checksum initialization. This means that also statuses of the device that may
have been already extinct are stored in the memory.
The basic status information is also displayed as a "bell" icon on the device display.
SUM.CLR. - Checksum Trigger
On selecting this option on the device keypad or via the "Clear Checksum" option from the
"Setup-Diagnostics" menu from the utility SW on the PC, the checksum is triggered, i.e. the
current status is set according to the actual status. To enable the triggering, the service switch
must be ON. If it is switched to OFF, a message ("Not Possible") is displayed, warning that the
function cannot be triggered.
TEST - Device Test
After selecting this menu item, the device tests its internal state and displays a list of detected
errors and warnings. The test runs for several seconds (the message "Working" appears on the
display) and does not affect the actual measuring and archiving operation of the device. The
command execution is independent of the position of the service switch.
During the test, WARNING is displayed on the display. The indicated errors are identified with the
prefix "E" and the identification number; similarly, the prefix "W" is used for the warnings 29 ). Refer
to
Table 14
and Table 15 for a complete list of error messages and warnings.
29 ) Due to the limitation of character display on the customer display, the "W" is displayed as "U"