Operation Of Programmable Models; Control Parameters - Barnstead F46110CM Operation Manual

Operation of Programmable
Models
NOTE
Once the desired parameter has been
selected, depressing either the raise
or lower button will cause the param-
eter to be replaced with the new
value. At this point, the "top dot" of the
least significant digit of the secondary
display will flash on and off. Any
further use of up or down buttons will
change parameter value. In all cases,
the value shown on the display is the
current working value of that param-
eter
MODELS F46120CM, F46120CM-33,
F46120CM-33-75, F46120CM-75,
F46128CM, F46128CM-75,
F46240CM, F46240CM-33,
F46240CM-33-75, F46240CM-75,
F46248CM, F46248CM-75
NOTE
These models have two additional
parameters at the beginning of the
parameter list;
Pnr is the program number selected.
By pushing the up or down button,
you can select a program from 1 to
15. On the F46120CM, F46120CM-
33, F46128CM, F46240CM,
F46240CM-33 and F46248CM
models, this is selected between 1-4.
Cnt is used to allow linking of pro-
grams. Cnt (continued) may be
selected as "y" (yes) or "n" (no) by
pushing the up or down button. The
remaining parameters will follow in the
sequence listed.
20

Operation of Programmable Models

(F46120CM, F46120CM-33, F46120CM-33-75, F46120CM-
75, F46128CM,
F46128CM-75, F46240CM, F46240CM-33, F46240CM-33-
75, F46240CM-75,
F46248CM, F46248-75)

Control Parameters

PR1 = program ramp rate is the rate of heat increase or
decrease in °C/minute. Pushing the up or down button to
set.
PL1 = program level is the temperature which the furnace
needs to attain. Push up or down button to set.
PD1 = program dwell "1" is amount of time, in minutes, to
hold the PL1 program temperature level entered. Push up
or down button to set.
The remaining Program Ramp Rates PR2 - PR8, Program
Levels PL2 - PL8, and Program Dwells PD2 - PD8 follow in
the same manner as PR1, PL1 and PD1. (After PD8).
HB = "Holdback" automatically places the programmer into
"Hold" if the measured value deviates more than a specified
amount from programmer setpoint. When measured value
re-enters the holdback band, the timing for the segment
resumes. (Parameter is expressed in °C and only functions
when running a program). Push up or down button to set.
PLC = Program Loop Count is the number of times a
program will be repeated. Push up or down button to set.
SP1 = setpoint one which indicates current setpoint. Push
up or down button to set.
SP2=Setpoint two. Not configured into control and
nonfunctional. Set to 20.