Carbolite 3216P1/P5 - Manual (Page 10)

Programming
10 MC18-GB – v1.04
Single Offset
If a constant offset is required acro
ss the temperature range, set the required “High Point”
(
PNT.HI) and “Low Point” (PNT.LO) to the required values (not the same), then set the “low
Offset” (OFS.LO) and “High Offset” (OFS.HI) to the same value.
Caution! - Do not make PNT.LO and PNT.HI the same value as the controller will
not work correctly and could cause your furnace or oven to overheat.
4.7 Holdback
If the temperature ramp rate of the program is quicker than the furnace or oven can achieve,
the program will wait until the temperature of the furnace or oven catches up.
e.g. If a Holdback value of 10 is set and the program is set to ramp to a setpoint of 600°C,
the program will reach 600°C, then go into an hold state; the hold indicator will light until the
furnace or oven temperature reaches 590°C, the program will then continue to control
again.
The hold back will only apply once per Segment, therefore when control has been re-
established, the hold back will not apply again to that segment, even if the furnace or oven
temperature go outside the hold back band.
Holdback can only be accessed in supervisor level (level 2) by scrolling with the Scroll

until the display shows
H.BACK : Use the Up 
Down

to select the
required Hold Back value.
If a multi programmer is used, each program can have its own Holdback value assigned to
it.
Note: When a Holdback is set, each segment used must have a Ramp Rate assigned
to it, in order for it to be recognised by the program.
5 Programming
5.1 Creating a Program
Programs can be created in level 1 or level 2 of the 3216 P1 and 3216P5. Each program
contains 8 Ramp/Dwell pairs.
Note:
A currently active program cannot be altered. Go into reset mode before starting to create or
modify a program
Program Number (3216 P5 Only)
Press scroll

until the display shows
PROG <PROGRAM NUMBER.> Select the program
number.