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Model
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KV-TF40
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Type
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Temperature control unit
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Memory elements
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EEPROM rewritable one million times
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Number of temperature input points
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4 ch
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Input
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Thermocoupler/Platinum temperature measuring resistor*1
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Temperature sensor types
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Thermocoupler: K, J, T, E, R, B, N, S, W5Re/W26Re
Platinum temperature measuring resistor: JPt100, Pt100
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Indicated accuracy
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±0.3% of F.S. ±1 digit (at 25°C 77°F), ±0.7% of F.S. ±1 digit (at 0 to 50°C 32 to 122°F)
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Cold junction correction precision
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±1°C ±1.8°F
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Sampling cycle
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125 ms/ch (500 ms/4 ch)
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Control period
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1 to 100 seconds
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Operation mode
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PID control (with auto-tuning and 3 mode stabilizer function installed),
Heat/cool PID control (with auto-tuning and 3 mode stabilizer function installed), ON/OFF control
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Tuning mode
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PID auto-tuning mode
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Control output
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Transistor (sink)
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Alarm output
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Transistor (sink)*2
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Alarm mode
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Absolute value upper limit, absolute value lower limit, deviation upper limit, deviation lower limit, deviation upper limit unexcited,
deviation lower limit unexcited, deviation upper and lower limits, within upper and lower limit deviation, absolute value upper limit unexcited, absolute value lower limit unexcited*3
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Output
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Rated load
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30 VDC, 100 mA or less
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Leakage current at OFF
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100 μA or less
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Residual voltage at ON
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1.5 V or less
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Current sensor (CT) input
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4 ch*4
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Current measurement precision
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Larger of ±5% of an input value and ±2 A of an input value
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Insulation mode
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Between inputs and outputs: Photocoupler and transformer insulation, Between input channels: Photocoupler and transformer insulation
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Others
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Heater wire breaking alarm, control loop wire breaking alarm, measured value
bias, output limit, slope setup, manual reset, output control when an error occurs
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Internal current consumption
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210 mA or less
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Weight
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Approx. 270 g
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