Specifications

SERIES IMP TECHNICAL SPECIFICATIONS
PERFORMANCE SPECIFICATIONS
Control Mode CompuCycle
®
system
Temperature
Range Ambient to 999˚F, or ambient to 535˚C
Temperature
Reset Automatically corrects
reset to within 2˚F (1˚C) at
all settings
Control Accuracy
±
1.0˚F (
±
0.5˚C) dependent on the total thermal
system
Temperature
Stability
±
0.5% of full scale over the ambient range of
32 to 140˚F (0 to 60˚C)
Calibration
Accuracy Better than 0.2% of full scale
Power
Response Time Better than 0.13 seconds
Compensated
Manual Mode Maintains constant output power to within
1% of manually set power level with line volt-
age variation from 192 to 264 volts. Power
control range is from 0 to 100%, using the
CompuCycle system power drive.
Over Temperature
Indicator The upper segment of the leftmost display
will be “on” and the whole display flashes at
about 2 Hz when the temperature error
exceeds +30˚F (+17˚C)
Under Temperature
Indicator The lower segment of the leftmost display
will be “on” and the whole display flashes at
about 2 Hz when the temperature error
exceeds -30˚F (-17˚C)
TC Break
Indication Flashing on the leftmost display (in
closed-loop and CompuStep)
TC Reverse
Indication Flashing “ ” on the leftmost display (in
closed-loop and CompuStep)
No Heat/Open Heater
Indication Flashing “ ” center segment only of the
leftmost display (in closed-loop)
CompuStep
®
System
Control Mode Variable stepping voltage, phase fired
CompuStep
System Duration Approximately 5 minutes
CompuStep System
Output Voltage Steps approximately from 25 V
RMS
to
170 V
RMS
with 240 Vac line input
CompuStep
System Holding
Temperature 256˚F (125˚C)
CompuStep
System Override
Temperature 200˚F (93˚C)
Operational Mode
Priority a. TC break, TC reverse and No Heat override
CompuStep System b. Manual mode over-
rides TC break, TC reverse and No Heat
INPUT SPECIFICATIONS
Thermocouple
(T/C) Sensor Type “J”, grounded or
ungrounded
External (T/C)
Resistance Greater than 1000 ohms
T/C Isolation Isolated from ground and
supply voltages
Cold Junction
Compensation Automatic, better than 0.02˚F/
˚F (0.01˚C/˚C)
Input Type Potentiometric
Input Impedance 22 megohms
Input Protection Diode clamp, RC filter
Input Amplifier
Stability Better than 0.05˚F/˚F (0.03˚C/˚C)
Input Dynamic
Range Greater than 1000˚F (535˚C)
Common Mode
Rejection Ratio Greater than 100 dB
Power Supply
Rejection Ratio Greater than 90 dB
OUTPUT SPECIFICATIONS
Voltages 240 Vac nominal, single phase 120 Vac available
Power Capability 15 amperes, 3600 watts @ 240 Vac, 30
amperes, 7200 watts @ 240 Vac
Output Switch Internal solid state triac,
triggered by ac zero crossing pulses
Overload
Protection Triac and load use high speed fuses. Both
sides of ac line are fused.
Power Line
Isolation Optically and transformer
isolated from ac lines. Isolation voltage is
greater than 2500 volts.
CONTROLS AND INDICATORS
Setpoint Control Precision 3 digit pushbutton switch, direct
reading; Range: 0 to 999˚F (535˚C); Resolution:
1˚F (1˚C); Accuracy: Better than 0.5˚F (0.3˚C)
Manual Power
Control Single turn potentiometer,
calibrated scale; Range: 0-100%; Linearity:
10%
Mode Control 3-position sliding switch selects mode of
operation
1. top position-Manual mode
2. middle position-Auto mode
3. bottom position-Auto mode with Com-
puStep system
Power ON/OFF Rocker switch, UL, CSA, VDE approved
ELECTRICAL POWER SPECIFICATIONS
Input Voltage 240/120 Vac, + 10% -20%
Frequency 50 Hz ± 3 Hz, 60 Hz ± 3 Hz
DC Power Supplies Internal generated, regulated and tempera-
ture compensated
Module Power
Usage Less than 3 watts, excluding load