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Climate control equipment

Home > Climate control equipment > Small built-in thermoelectric cooler "BOXCOOL" lineup > Temperature controller Simplified model without power supply

Temperature controller Simplified model without power supply

Low cost temperature control system specifically designed for BOXCOOL



Environment of use Function
Indoor Display Wide range of supply voltages




Model OCE-TC91-8Y1-1C OCE-TC91-8P3-1C
Control method Auto-tuning PID controller ON/OFF control
Setting range -100 to +80℃
Control output Contact output 240VAC 2.0A/Resistance load
240VAC 1.2A/Induction load
Voltage output 11V±1VDC (at load resistance1.5kΩ)
Load current not exceeding 30mA
Type of input (option) *1 ・Thermocouple (B, R, S, K, E, J, T, N, PLⅡ, Wre5-26,{U,L(DIN43710)})
・Resistance temperature detector (JIS Pt100/JPt100 3-wire type) 0.25mA
・Rated voltage (-10 - 10, 0 - 10, 0 - 20, 0 - 50, 10 - 50, 0 - 100 mVDC)・・・ Input scaling possible
Power supply voltage (50/60Hz) 100-240V AC±10% 
Power consumption Approx. 11VA 
Digital display Measured value (PV)/7segment Red LED 4 digit  Target set variable (SV)/7segment Green LED 4 digit 
Display accuracy *2 ±(0.3%FS+1 digit)
Display resolution Varies by measurement range (0.1, 1)
Sampling frequency 0.25 sec.
Liquid temperature Number of alarm point 2 points of EV1 and EV2 (Normally open, Common)
Alarm items Select from upper deviation limit, lower deviation limit, out of deviation range, within deviation range, upper absolute value limit, lower absolute value limit
Action ON-OFF action
Rating Contact 1a×2 (Common)/240VAC 1A (Resistance load)
Data storage Non-volatile memory (EEPROM)
Working temperature -10 to +50℃
Working humiidity Max. 90%RH, free from condensation
Insulation resistance Between input/output terminals and power terminal/ Min. 500VDC, 20MΩ
Between input/output teminals and protection condutor terminal/500VDC, 20MΩ
Withstand voltage Between input/output terminals and power terminal, 2300 VAC, 1 minute
Between power terminal and protection conductor terminal, 1500VAC, 1 minute
Protective structure IP66 equivalent dust and splash proof constuction (Front panel part only)
Casing material PPO plastic molding (UL94V-1 equivalent)
Installation Recessed mounting with single action
Panel thickness 1.0-4.0mm
Mounting hole dimensions W45×H45
Terminal screw M3.5
Conformity to standards Environment RoHS2
Dimensions (mm) H48×W48×D111
Weight 170g
*1 Sensors for thermocouple and RTD are sold separately.
*2 Excluding cold junction temperature compensation accuracy of thermocouple input



Dimensional drawing


Example of use

OCE-TC91-8Y1-1C Contact output type

Example of using a switched-mode power supply having remote control function for contact input


OCE-TC91-8P3-1C Power supply output type

Example of using a switched-mode power supply having remote control function for voltage input



・Do not use this product in a place where flammable or corrosive gasses, oil fume or any matters that can destroy insulation generate or permeate.
・The site of use should be free from vibration and impact.
・Electrical works required for installation of this product should be done only by professionals or qualified personnel.
・Indoor use only.
・Inversion control function is not provided. Single output control for either heating or cooling (factory setting : cooling control)
・Make sure that the packaging is not damaged on delivery. Any packaging damage can lead to breakdown of the product. Please contact us immediately if any damage is found.