Field Settings
880 Operation Manual Issue 7 EMC INDUSTRIAL GROUP LTD Page 23 of 25
Demo Mode
Set Demo Mode Step 02
To run the controller and demonstrate its features without having to heat the kiln
set step
to &. On power up the large display momentarily shows !. En-
sure when demonstration is finished to set step
back to .
While in this mode the heat relay contacts and the logic output do not turn on if the
controller is asking for heat but the Heat light turns on and the temperature reading
will increase. The dummy kiln has a time constant similar to a kiln with a heat
transfer time constant of several minutes.
• Enter Field Setting Mode.
• Press MENU key until the small display flashes
.
• Press the UP key to set display to
& or press the DOWN key to set dis-
play to
.
• Press EXIT key to return to normal operation.
Auto-Continue
Set Auto-Continue Step 21
When the controller leaves the factory, Auto-Continue is set to &. This means if
power fails during a firing, the controller will automatically continue firing when
power is restored. If Auto-Continue is set to , the displays will show a power
failure occurred and at what stage of the firing it failed. The firing must be manually
continued or cancelled. Refer to Power Failure, page 13 for full details.
• Enter Field Setting Mode.
• Press MENU key until the small display flashes
.
• Press the UP key to set display to
& or press the DOWN key to set dis-
play to
.
• Press EXIT key to return to normal operation.
Hold Temperature Setting Limits
The minimum and maximum setting limits are used to restrict the range over which
the Hold Temperature can be set when programming the controller.
The minimum can be adjusted from –50.0°C upwards and the maximum from
3200°C downwards for thermocouple ranges and 320.0°C for the RTD range.
When the controller leaves the factory the Hold temperature minimum is set to 0°C
and the maximum for thermocouple ranges is set to 1300°C, (130.0°C for RTD
range). This prevents the Hold temperature being set to values that may damage
the kiln.
For kilns which may still be damaged if fired to1300°C, the maximum limit should
be reduced to suit. (Consult kiln supplier for firing temperature limits.)
The following procedure details how these limits may be altered.
Set Maximum Hold Temperature Step 23
• Enter Field Setting Mode.
• Press MENU key until the small display flashes
.
• Use the UP and DOWN keys to alter the display to the new maximum value.
• Press EXIT key to return to normal operation or press MENU key to go onto
next step, step
"
, to adjust the minimum value.
Set Minimum Hold Temperature Step 24
• Enter Field Setting Mode.
• Press MENU key until the display flashes
"
.
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