Temperature Meter


24 VDC/24 VAC, 4 digit, Input: Platinum resistance thermometer/Thermocouple

Power supply voltage 24 VAC (50/60Hz)
24 VDC

Item list of K3MA-L

  • Ratings/Characteristics
Power supply voltage24 VAC (50/60Hz)
24 VDC
Allowable power supply voltage range85% to 110% of the rated power supply voltage
Power consumption24 VDC: 4.5 W max.
at 24 VAC: 4.5 VA max.
Temperature measurement input (Input type)Platinum resistance thermometer / Thermocouple
Temperature measurement input (Accuracy)Platinum resistance thermometer: (±0.5% of indicated value or ±1 ℃, whichever is greater) ±1 digit max.
Thermocouple: (±0.5% of indicated value or ±1 ℃, whichever is greater) ±1 digit max.
Display method7-segment digital display
Character height14.2 mm (green/red)
Zero suppressYes
Decimal point display positionSelected with parameters
Key protectOperation/Adjustment Lockouts / Setting Level Lockouts / Setting Change Lockout
Filters functionAverage processing
Input Compensation functionTemperature Input Shift
Display functionDisplay Color Selection
Output functionComparative Output Pattern / Hysteresis
Ambient temperatureOperating: -10 to 55 ℃
Storage: -25 to 65 ℃
Ambient humidityOperating: 25 to 25%
Storage: 85 to 85%
AccessoriesWaterproof packing / Fixtures / Terminal cover / Unit label / Instruction manual
WeightApprox. 220 g
A/D conversion methodDouble integral method
Sampling period500 ms
Display refresh periodSampling period (sampling times multiplied by number of measurements for averaging if average processing is selected.)
Comparative output response time1 s max.
Insulation resistance20 MΩ min. (at 500 VDC) between external terminals and case. Insulation provided between inputs, outputs and power supply.
Dielectric strength2,000 VAC 1min (between external terminals and case)
Noise immunity±480 V at power supply terminals in normal mode ±1,500 V at power supply terminals in common mode (waveform with 1-ns rising edge and pulse width of 1 us/100 ns)
Vibration resistanceMalfunction: 10 to 55 Hz, Acceleration: 50 m/s**2, 5 min 10 sweeps each in X, Y, and Z directions
Shock resistanceMalfunction: 150 m/s**2, 3 times each in 3 axes 6 directions
Degree of protectionFront panel: NEMA4X for indoor use (equivalent to IP66)
Rear case: IP20
Terminals: IP00 + finger protection (VDE0106/100)
Memory protectionEE-PROM (non-volatile memory) Number of rewrites: 100,000
  • Dimensions

  • Terminal arrangement

  • Internal connections


Temperature Meter


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