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Issue 1.2
Prepayment functionality
© Gyr
D000058620 en a
– E470 Series 3 SMETS2 100 mm – ZCX310 – User Manual and Functional Description
UTRN Entry
UTRN Entry
EmCr and add credit
dialogue
EmCr
available?
Accept EmCr
B=yes, A=no
yes
Add Credit B=yes,
A=no
B
B
EmCr accepted
3 seconds
To prepayment
status display
*
***************
code
B
B
2*
**************
code
26*
*************
code
A
A
Increments
highlighted
digit (0..9)
B
B
Moves to next
digit
Continue until 20 digits
entered (screen scrolls
to all full entry of code)
5478397509816385
code
UTRN valid?
B
B
To submit UTRN for
validation
Accepted
£10.00
no
UTRN already
entered?
yes
Invalid re-enter
code
no
Credit already
used
yes
5 seconds
5 invalid entries
in 10 minutes?
no
Code Entry
locked
5 seconds
To prepayment mode
status display
5 seconds
A
A
To prepayment mode
status display
Press button briefly (t < 2 s)
Press button longer (t
≥ 2 s)
30 second timeout from last button press
–
returns display to Total active import display
*Rolling display list items and sequence defined by meter configuration
UTRN entry locked for 1 hr
yes
UTRN entry
locked?
no
yes
To prepayment mode status display
A
A
Figure 17 Manual entry of a credit top-up code
10.5.1 Emergency credit
Emergency credit is a short-term loan that the meter can offer to the user if
configured to do so.
The emergency credit set up command defines the emergency credit limit
and the emergency credit availability threshold.
The emergency credit limit is the amount of the short-term loan that the
meter will provide.
The emergency credit availability threshold is the level of the remaining
user prepaid credit at which the meter will begin to offer the emergency
credit short term loan.
When the emergency credit threshold is reached the meter display will
advise that emergency credit is available. The user then has the option of
accepting the emergency credit if they wish. The emergency credit will