Carbolite 201 Инструкция по эксплуатации - Страница 3
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Печатать страницу3. O
PERATION
Altering the Setpoint: press Down or Up key once to display the setpoint; press again to adjust it.
The display returns to the measured temperature when no key is pressed for 0.5 seconds.
Altering the Ramp Rate: press Scroll until the legend SPrr (SetPoint ramp rate) is displayed. Use
Down or Up to display and adjust the value.
The ramp rate sets the maximum rate of heating or cooling in degrees per minute. A value of
OFF cancels the ramp rate, allowing heating and cooling at the maximum rate.
Altering the Power Limit (when applicable). For furnaces heated by silicon carbide elements see
the section in the manual headed Power Adjustment. For other models the parameter is not
accessible.
Press Page until oP (output list) is displayed. Press Scroll until OP.Hi (Output High) is displayed.
Press Down once to display the value of OP.Hi and write down the value. Do not increase the
value without correct calculation: the furnace elements or wiring could burn out. To alter the
value, use Down or Up. Do not set the value to zero: this prevents the furnace from heating.
Overtemperature Option. The overtemperature key must be held depressed continuously while
viewing or adjusting the overtemperature controller. If the Overtemperature key is released, the
display reverts to the main controller
The overtemperature setpoint is normally displayed. To alter the value, use Down and Up. To
view the measured temperature, press Scroll until PV (present value) is displayed, then press
Down or Up.
When an overtemperature condition is reached, the overtemperature warning light changes from
green to flashing red. To "accept" or "reset" this alarm condition, press the Overtemperature key
and the Page key together; the warning light changes to continuous red. Once the over-
temperature condition is cleared (by the temperature falling), the light changes to green.
4. P
T
ROCESS
IMER
Press Scroll until dwEll appears. Use Down or Up to display and alter the dwell time in minutes.
If SPrr is on, the timing cycle starts when the working setpoint reaches the setpoint; if SPrr is off,
then the cycle starts immediately after any adjustment of the setpoint (or on switching on). After
completion of the dwell time, the legend End flashes and (if fitted) an audible alarm is given. To
cancel the alarm, press Down or Up at least twice. Depending on the option ordered, the setpoint
temperature is maintained after the dwell time, or the temperature starts to fall.
When the alarm is cancelled, the timer restarts. To deactivate the timer, set both the SPrr and
dwEll parameters to off.
It is not possible to use the SPrr feature without the audible alarm being activated after the dwell
time (immediately if dwEll is off). Note that it is possible to defer any possible alarm by setting
dwEll to 999.9 (over 16 hours).
O
(201T
PTION
ONLY
)
MC01A 1.01