Control Of Display Via Optical Interface; Reset Button - Landis+Gyr E650 Series User Manual

Operation
5.2.2

Control of display via optical interface

5.2.3

Reset button

D000030108 en m – E650 Series 3 – ZMD300AT/CT – User Manual
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Cl. 1
kvarh
Three-phase four-wire meter
ZMD310CT44.4207 S3
3 x 230/400 V 10(80) A
T1 T2 T3
Figure 54. Display buttons
By pressing the lower display button "down", the display changes to the
next value in the list. By pressing the upper display button "up", the display
changes to the previous value (also see section 5.4.2 "Display menu").
All E650 meters have an "optical button" in addition to the "up" and "down"
display buttons. The optical interface serves to receive a light signal, e.g.
generated by a torch (works only with warm light, i.e. LED torches cannot
be used for this). The light signal acts like the "down" display button and
controls the display in one direction from one value to the next. This type of
display control only functions when voltage is supplied to the meter.
The reader can also control the display at a distance from the meter
depending on the light intensity from the source, e.g. through a protective
glass in front of the meter.
The reset button is situated to the right of the battery compartment behind
the front door. To permit operation of the reset button the front door must
be opened and therefore the utility seal be removed.
The reset button can be used to perform a manual reset. If the display
check is displayed (after operation of a display button), however, pressing
the reset button produces the service menu (also see section 5.4.3 "Service
menu").
Figure 55. Reset button behind front door
Landis+Gyr E650
imp
Cl. 1
1000
kWh
Nr. XX XXX XXX
50 Hz
20XX
SET Test
Readout
Display key
"up"
Display key
"down"
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