4 LT3500 Installation and Operating Instructions
the following messages initially: -
no.in There is no reply from the sensor (timer can not function correctly)
in.lo The value from the sensor is below the trigger level setup in ST.12.
trig The value from the sensor is above the trigger level setup in ST.13.
Press button A to switch to current display mode, this will show "i-xx", where xx is
the current reading as a value in hexadecimal format (see appendix 1); this value will
change as the load current consumption varies.
St.13 High current (In Use) Value
Press and release button B to step to St.13. Press button A to enter setting. Once
entered this mode will turn on the relays and the display will show "H-xx" to indicate
the stored hexadecimal setting for the high current mode. To learn a new current value,
set the load into its minimum high power state then press button A and wait as the
timer counts down from 8 to 0, with the display showing "C-xx", where xx is the count
down in seconds. If the value exceeds, equals or is just too close to the low value then
an "Err " will be displayed and no changes will be made; when a good value is
accepted it will be stored as the new setting. The display will return to showing the
current hexadecimal value for the high power state.
St.12 Low current (Idle) value
Simultaneously press and release both buttons A and B to step back to St.12. Press
button A to enter setting. Once entered this mode will turn on the relays and the
display will show "L-xx" to indicate the stored hexadecimal setting for the low current
mode. To learn a new current value, set the load to its idle state then press button A
and wait as the timer counts down from 8 to 0, with the display showing "C-xx",
where xx is the count down in seconds. If the value exceeds, equals or is just too
close to the high value then an "Err " will be displayed and no changes will be made;
when a good value is accepted it will be stored as the new setting. The display will
return to showing the current hexadecimal value for the low power state.
Programming credit
The credit functions allow the meter to be programmed for fixed time, session time or
session cost for charging purposes. Additionally a factory set option allows a
combination of session time and session cost. Once the initial cost is met further coins
will add time allocated to that coin. This is referred to as top-up mode.
Press and release button B to step to the desired setting number.
When the required number is showing on the display press and release button A to
display the existing setting. Press and release button A to select the digit to be changed
then press and release button B to alter that digit.
NOTE
Coins and tokens are validated by two coin sensors. Coin 1 sensor validates £1 coins,
L2 and L4 tokens. Coin sensor 2 validates €1, €½, 10p, 20p, L1 token
