Stafford Instruments ST216, Руководство пользователя

Страница: 14 / 16

Page ST216 User Handbook
14
Other Features
Energy Used & Set-point Displays
Operate the
◄ key at any time to show the amount of electrical energy used
in kWh. If pressed during a firing it shows the energy used so far. After a
firing it shows the total energy used for that firing. This information is stored
while power is off and is only reset to zero when a new firing is started. If the
value displayed is always 0.0 then the kiln power rating has not been config-
ured - see installation handbook.
Operating the
◄ key a second time shows the current set-point (the temper-
ature which the ST216 is currently trying to achieve).
Keyboard Lock Facility
The keys on the ST216 can be locked so that pressing them has no effect.
This is an anti-tamper feature used to ensure that the operation of the ST216
or the program data cannot be altered by un-authorised people. The ST216
can be locked when it is idle (not firing) or while it is firing. It cannot be
locked while it is being programmed.
Power Failure Recovery
If power fails during firing then the ST216 recovers as follows:-
For power failure during start delay the ST216 times off the remaining start
delay when power returns. For power failure during ramping the ST216 con-
tinues the ramp it was previously executing. For power failure during soak-
ing the ST216 ramps back up to soak temperature at the correct ramp rate
then applies the remaining soak period. This recovery scheme can be disa-
bled if required (see Installation handbook) - the ST216 will then lock up with
FAIL displayed and kiln off in the event of power failure.
Press the
▲ & ▼ keys together & hold
down for 5 seconds to lock or to unlock.