Omron EJ1N-TC4 - Product Characteristics; Performance Characteristics; Environmental and Electrical Specs

EJ1
3
Characteristics
*1. The indication of K thermocouples in the −200 to 1,300°C range, T and N thermocouples at a temperature of −100°C or less, and U and L
thermocouples at any temperature is ±2°C ±1 digit maximum. The indication of B thermocouples at a temperature of 400°C or less is
unrestricted. The indication of R and S thermocouples at a temperature of 200°C or less is ±3°C ±1 digit max.
W = (±0.5% of indication value (PV) or ±3°C, whichever is greater) ±1 digit max. PLII = (±0.5% of indication value (PV) or ±2°C, whichever is
greater) ±1 digit max.
The indication accuracy for K thermocouples in the −199.9 to 999.9°C range is (±0.5% of indication value (PV) or ±1°C, whichever is
greater) ±10 digit maximum. However, at a temperature of -100°C or less, it is ±2°C ±10 digit maximum.
*2. “EU” stands for Engineering Unit. The location of the decimal point depends on the type of sensor that is selected.
If the decimal point locations is set to 0 (****), however, it will be treated as if it were set to 1 (***.*).
*3. B, R, S, and W sensors: 0.2°C/Ω max. (100 Ω max.)
Indication accuracy
Thermocouple input/platinum resistance thermometer input:
(±0.5% of indication value (PV) or ±1°C, whichever is greater) ±1 digit max. *1
Analog input: ±0.5% FS ±1 digit max.
CT input: ±5% FS ±1 digit max.
Hysteresis 0.1 to 999.9 EU (in units of 0.1 EU) *2
Proportional band (P) 0.1 to 999.9 EU (in units of 0.1 EU) *2
Integral time (I) 0 to 3,999 s (in units of 1 s)
Derivative time (D) 0.0 to 999.9 s (in units of 0.1 s)
Control period 0.5 s, 1 to 99 s (in units of 1 s)
Manual reset value 0.0% to 100.0% (in units of 0.1%)
Alarm setting range −1,999 to 9,999 (decimal point position depends on input type)
Sampling period 250 ms
Influence of signal source
resistance
Thermocouple: 0.1°C (0.2°F)/Ω max. (100 Ω max per line) *3
Platinum resistance thermometer: 0.4°C (0.8°F)/Ω max. (10 Ω max per line)
Insulation resistance 20 MΩ min. (at 500 VDC)
Dielectric strength 600 VAC, 50/60 Hz for 1 min between current-carrying terminals of different polarity
Vibration resistance 10 to 55 Hz, 20 m/s
2
for 2 hours each in X, Y, and Z directions
Shock resistance 150 m/s
2
, 3 times each in 6 directions
Weight 180 g
Degree of protection Rear case: IP20, Terminal section: IP00
Memory protection EEPROM (non-volatile memory) (number of writes: 100,000)
Standards
Approved standards UL61010C-1, CSA C22.2 No.1010-1
Conformed standards EN61010-1 (IEC61010-1): Pollution level 2, overvoltage category II
EMC Directive
EMI: EN61326
EMI Radiated: EN55011 Group1 class A
EMI Conducted: EN55011 Group1 class A
EMS: EN61326
ESD Immunity: EN61000-4-2
Electromagnetic Field Immunity: EN61000-4-3
Burst immunity/Noise Immunity: EN61000-4-4
Conducted Disturbance Immunity: EN61000-4-6
Surge Immunity: EN61000-4-5
V1.2