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Temperature Meter

K3MA-L

K3MA-L

Highly Visible LCD Display with 2-color (Red and Green) LEDs

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K3MA-L Pick up

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Ratings

K3MA-L 100-240VAC,
K3MA-L-C 100-240VAC		K3MA-L 24VAC/VDC,
K3MA-L-C 24VAC/VDC
Supply voltage100 to 240 VAC24 VAC (50/60 Hz), 24 VDC
Operating voltage range85% to 110% of the rated supply voltage
Power consumption
(under maximum load)		6 VA max.4.5 VA max. (24 VAC)
4.5 W max. (24 VDC)
Insulation resistance20 MΩ min. (at 500 VDC) between external terminal and case.
Insulation provided between inputs, outputs, and power supply.
Dielectric strength2,000 VAC for 1 min between external terminal and case.
Insulation provided between inputs, outputs, and power supply.
Noise immunity±1,500 V on power supply terminals in normal or common mode.
±1 μs, or 100 ns for square-wave noise with 1 ns.		±480 V on power supply terminals in normal mode. ±1,500 V in common mode.
±1 μs, or 100 ns for square-wave noise with 1 ns.
Vibration resistanceVibration: 10 to 55 Hz, Acceleration: 50 m/s2
5 min each in X, Y, and Z directions for 10 sweeps.
Shock resistance150 m/s2 (100 m/s2 for relay contact outputs) 3 times each on 3 axes, 6 directions.
Ambient temperatureOperating: -10°C to 55°C (with no condensation or icing)
Storage: -25°C to 65°C (with no condensation or icing)
Ambient humidityOperating: 25% to 85% (with no condensation)
Approved safety standardsUL3121-1, conforms to EN61010-1 (Pollution degree 2/overvoltage category II)
Conforms to VDE0106/P100 (finger protection)
EMC(EMI) EN61326+A1 Industry
Emission Enclosure: CISPR 11 Group 1 class A
Emission AC Mains: CISPR 11 Group 1 class A

(EMS) EN61326+A1 Industry
Immunity ESD: EN61000-4-2: 4 kV contact discharge
8 kV air discharge
Immunity RF-interference: EN61000-4-3: 10 V/m (amplitude-modulated, 80 MHz to 1 GHz)
Electrical Fast Transient Noise: EN61000-4-4: 2 kV (power line)
Immunity Burst Noise: 1 kV line to line (I/O signal line)
Immunity Surge: EN61000-4-5: 1 kV (power line)
2 kV line to ground (power line)
Immunity Conducted Disturbance: EN61000-4-6: 3 V (0.15 to 80 MHz)
Immunity Voltage Dip/Interrupting: EN61000-4-11: 0.5 cycle, 0, 180°, 100% (rated voltage)
WeightApprox. 200 g

Characteristics

Indication accuracy (at 23±5°C)
(See note.)		Thermocouple:
(±0.5% of indication value or ±1°C, whichever greater) ±1 digit max.
Platinum-resistance thermometer:
(±0.5% of indication value or ±1°C, whichever greater) ±1 digit max.
InputThermocouple: K, J, T, E, L, U, N, R, S, B
Platinum-resistance thermometer: JPt100, Pt100
Measurement methodDouble integral method
Sampling period500 ms
Display refresh periodSampling period (sampling times multiplied by number of averaging times if average processing is selected.)
Max. displayed digits4 digits (-1999 to 9999)
Display7-segment digital display, Character height: 14.2 mm
Polarity display"-" is displayed automatically with a negative input signal.
Zero displayLeading zeros are not displayed.
Input shiftInput shift equivalent to the setting value supported for all points within the sensor measurement range.
Hold functionMax hold (maximum value), Min hold (minimum value)
Hysteresis settingProgrammable with front-panel key inputs (0001 to 9999).
Other functionsDisplay color change (green (red), green, red (green), red)
Average processing (simple average OFF/2/4/8 operations)
Setting change lockout
Parameter initialization
OutputRelay contact (SPDT)
Delay in comparative outputs1 s max.
Degree of protectionFront panel: NEMA4X for indoor use (equivalent to IP66)
Rear case: IEC standard IP20
Rear case: IEC standard IP20
Memory protectionNon-volatile memory (EEPROM) (possible to rewrite 100,000 times)

Note: The indication accuracy of the K thermocouple at a temperature of -200 to 1300°C is ±2°C ±1 digit maximum.

The indication accuracy of the T and N thermocouples at a temperature of -100°C or less is ±2°C ±1 digit maximum.

The indication accuracy of the U and L thermocouples at any temperature is ±2°C ±1 digit maximum.

The indication accuracy of the B thermocouple at a temperature of 400°C or less is unrestricted.

The indication accuracy of the R and S thermocouples at a temperature of 200°C or less is ±3°C ±1 digit maximum.

Measuring Ranges

Platinum-resistance Thermometer

InputPt100JPt100
Range°C-200 to 850-199.9 to 500.00.0 to 100.0-199.9 to 500.00.0 to 100.0
°F-300 to 1500-199.9 to 900.00.0 to 210.0-199.9 to 900.00.0 to 210.0
Parameter01234

Thermocouple

InputKJTELUNRSB
Range°C-200
to
1300		-20.0
to
500		-100
to
850		-20.0
to
400		-200
to
400		-199.9
to
400		0
to
600		-100
to
850		-200
to
400		-199.9
to
400		-200
to
1300		0
to
1700		0
to
1700		100
to
1800
°F-300
to
2300		0
to
900		-100
to
1500		0
to
750		-300
to
700		-199.9
to
700		0
to
1100		-100
to
1500		-300
to
700		-199.9
to
700		-300
to
2300		0
to
3000		0
to
3000		300
to
3200
Parameter56789101112131415161718

Input/Output Ratings

Relay Contact Output

ItemResistive load
(cosΦ = 1)		Inductive load
(cosΦ = 0.4, L/R = 7 ms)
Rated load (UL ratings)5 A at 250 VAC, 5 A at 30 VDC1.5 A at 250 VAC, 1.5 A at 30 VDC
Rated carry current5 A max. (at COM terminal)
Max. contact voltage400 VAC, 150 VDC
Max. contact current5 A (at COM terminal)
Max. switching capacity2,000 VA, 192 W375 VA, 30 W
Min. permissible load
(P level, reference value)		10 mA at 5 VDC
Mechanical life20,000,000 times min. (at a switching frequency of 1,200 time/min)
Electrical life
(at an ambient temperature of 20°C)		100,000 times min. (at a rated load switching frequency of 10 time/min)

Caution: In the interenst of product improvement, specifications are subject to change without notice.

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