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KT8R Temperature Controller

Rating/ Performance

Performance outline

Item Specifications
CE marking directive compliance Low Voltage Directive, EMC Directive, RoHS Directive
Size 48×96mm 1.890 × 3.780 in
Rating Rating power supply 100 - 240V AC
Rating frequency 50 / 60Hz
Rating power consumption 8 VA approx.
Rating
scale
Input type Input range
Thermocouple K -200 to 1,370℃ (-328 to 2,489℉)
-200.0 to 400.0℃ (-328.0 to 752.0℉)
J -200 to 1,000℃ (-328 to 1,832℉)
R 0 to 1,760℃ (0 to 3,200℉)
S 0 to 1,760℃ (0 to 3,200℉)
B 0 to 1,820℃ (32 to 3,308℉)
E -200 to 800℃ (-328 to 1,472℉)
T -200.0 to 400.0℃ (-328.0 to 752.0℉)
N -200 to 1,300℃ (-328 to 2,372℉)
PL-II 0 to 1,390℃ (32 to 2,534℉)
C
(W / Re5−26)
0 to 2,315℃ (32 to 4,199℉)
RTD Pt100 -200 to 850℃ (-328 to 1,562℉)
-200.0 to 850.0℃ (-328.0 to 1,562.0℉)
JPt100 -200 to 500℃ (-328 to 932℉)
-200 to 500.0℃ (-328.0 to 932.0℉)
DC Current 4 to 20 mA DC -2,000 to 10,000
0 to 20 mA DC
Voltage 0 to 1 V DC
0 to 10 V DC
1 to 5 V DC
0 to 5 V DC
  ・Scaling and change to the decimal point position is possible for DC current input and DC voltage input.
・DC current input of KT2 / KT7 / KT4H / KT4B is supported with an externally connected 50 Ω shunt resistor (sold separately).
Sensor input Thermocouple K, J, R, S, B, E, T, N, PL-II, C (W / Re5-26)
External resistor: Max. 100 Ω (Max. 40 Ω external resistor for B input)
RTD Pt100, JPt100 3-conductor system (Allowable input conductor resistance for each conductor: 10 Ω or less)
DC current 0 to 20 mA DC Input impedance: 50 Ω (For KT2 / KT7 / KT4H / KT4B, connect 50 Ω shunt resistor between input terminals.)
Allowable input current: 50 mA or less (For KT2 / KT7 / KT4H / KT4B, when 50 Ω shunt resistor is used)
4 to 20 mA DC
DC voltage 0 to 1 V DC Input impedance: 1 MΩ or more, Allowable input voltage: 5 V or less, Allowable signal source resistance: 2 kΩ or less
0 to 5 V DC Input impedance: 100 kΩ or more,
Allowable input voltage: 15 V or less, Allowable signal source resistance: 100 Ω or less
1 to 5 V DC
0 to 10 V DC
Control
output
Relay contact (Must be
specified)
1a
3 A 250 V AC (at resistive load), 1 A 250 V AC (at inductive load cos ø = 0.4), Electrical life: 100,000 times
Non-contact
voltage
(voltage output
for SSR drive)
12+20 V DC, Max. load current: 40 mA (with short circuit protection circuit)
DC current 4 to 20 mA DC, Load resistance: Max. 550 Ω
Alarm output 1 (EV1) Relay contact
1a 3 A 250 V AC (Resistive load)
1a 1 A 250 V AC (cosø=0.4)
Electrical life: 100,000 times
Alarm output 2 (EV2) Same as Alarm output 1
Control method PID action (with auto-tuning function), PI action, PD action (with manual reset function), P action (with manual reset function), ON / OFF action
Target temperature setting -
Program control function 1 pattern, 9-step setting is possible (However, make function selection setting of either control with fixed set point or program control.)
Indication
accuracy
Thermocouple Within ± (0.2 % + 1 digit) of each input span or within ±2 ℃ (4 ℉) whichever is greater
However, R or S input; within ±6 ℃ (12 ℉) in the range of 0 to 200 ℃ (32 to 392 ℉)
B input, range of 0 to 300 ℃ (32 to 572 ℉): accuracy is not guaranteed.
K, J, E, T, and N input, less than 0 ℃ (32 ℉): within ± (0.4 % ±1 digit) of input span
RTD Within ± (0.1 % + 1 digit) of each input span or ±1 ℃ (2 ℉) whichever is greater
DC current and DC voltage Within ± (0.2 % + 1 digit) of each input span
Sampling period 125ms
Hysteresis (ON / OFF) Thermocouple and RTD: 0.1 to 1,000.0 ℃ ()
DC current and DC voltage: 1 to 10,000 (The decimal
point place follows the selection)
Proportional band Input without decimal point: 0 to Input span
Input with decimal point: 0.0 to Input span
DC current and DC voltage: 0.0 to 1,000.0 %
Integral time 0 to 3,600 seconds
Derivative time 0 to 1,800 seconds
Proportional cycle 1 to 120 seconds
Allowable voltage fluctuation When 100 to 240 V AC: 85 to 264 V AC, When 24 V AC / DC: 20 to 28 V AC / DC
Insulated resistance 500 V DC, Min. 10 MΩ
Breakdown voltage Between input terminal and power terminal
Between output terminal and power terminal
1.5 kV AC for 1 min.
Malfunction vibration 10 to 55 Hz (1 cycle/min.), single amplitude: 0.35 mm 0.014 in (10 min. on 3 axes)
Breakdown vibration 10 to 55 Hz (1 cycle/min.), single amplitude: 0.75 mm 0.030 in (1 hour on 3 axes)
Malfunction shock X, Y and Z each direction for 5 times 98 m/s2
Breakdown shock X, Y and Z each direction for 5 times 294 m/s2
Ambient temperature −10 to 55 ℃ 14 to 131 ℉
Ambient humidity 35 to 85 % RH (No condensation)
Mass 160 g approx.
Waterproof IP66 (applicable only to the front panel subject to rubber gasket employed)
Display character height PV: 14 mm 0.551 in
SV: 14 mm 0.551 in
Option
functions
Heating /
Cooling
control
Relay contact Using EV2 assigned setting, use for heating and cooling control is possible.
Non-contact
voltage
-
Heater burnout alarm
output
-
Communication function -
Accessories Installation frame /
Mounting bracket
Included with controller
Terminal cover Sold separately
Rubber gasket Included with controller

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