Bartlett RTC1000 Technical Manual

The series 700 is Bartlett Instrument's seventh generation kiln controller board. New features
have been added and old features enhanced. All of the same basic functions for the RTC1000 have been
maintained. The RTC1000 kiln controller regulates the temperature in a kiln according to the program set
by the artist. The RTC1000 has two basic programming methods, Vary-Fire and Cone-Fire. Both methods
have new features that will be discussed. The series 700 can control a single zone or multi-zone kiln. The
series 700 is compatible with KISS (Kiln Interface Software System), which allows communication with
a person computer for programming, data collection, and graphing.
The SMT700 requires a 24V center-tap transformer. It connects to the board's bottom 3 quick
connects, labeled AC1, CENTER TAP, and AC2. The VA rating of the transformer is dependent on
the electrical load of the board and relays. The board requires approximately 80mA at 12V DC and a
relay typically requires approximately 140mA at 12V DC. Therefore, a three-relay system will
require a transformer with a minimum rating of 6VA. (500mA X 12 V DC = 6 VA)
The SMT700 has four 12V DC outputs. The four outputs are given power by a safety transistor.
The safety transistor is capacitor coupled to the microprocessor so it only powers the output
transistors when the microprocessor is operating correctly. Outputs 1, 2 and 3 respond to their
respective thermocouple inputs. Outputs 1, 2, and 3 are capable of driving a 500mA 12 VDC load.
Output 4 is an extra output that can be programmed to run a fan, alarm, or extra kiln section. Output 4
can drive on 150mA 12V DC load. The safety output powers on at the beginning of a firing and off at
the end of the firing. It is used to drive a safety relay that sends line power to the switching relays on
outputs 1, 2, and 3.
Output 4 is controlled by the AOP option. AOP functions differently when in cone fire or ramp hold.
In Cone Fire AOP will appear after the hold is set. When set to OFF, output 4 is activated during the
cone firing. At the end of firing output 4 shuts off. When AOP is set to ON, then output4 is activated
during both cone fire firing and cooling. It shuts off after the kiln has cooled to 150˚F (66˚C). In ramp
hold programs FAn will appear after SEG in programming. Output 4 can be turned on or off for each
segment of a ramp hold program.
The "hidden" menu allows you to program the number of thermocouples, enter a diagnostics
routine, set the shut off option for zone control, or set the helper PID parameter. To enter the "hidden"
menu, press "ENTER", "0", "0" and "rSEt" is displayed. Press "4", "4", "3" and "notC" will appear.
Continue to press "MENU" to scroll through the "hidden" options. When the option that you want to
set is displayed, press "ENTER".
RTC1000 – Technical Manual
General Description
POWER SUPPLY
OUTPUTS
HIDDEN MENU
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