Technical data

Technical data	EJ3318
Number of inputs	8 x TC 2 x PT1000 for cold junction compensation
Power supply	via the E-bus
Thermocouple sensor types	types J, K, L, B, E, N, R, S, T, U (default setting type K), mV measurement
Distributed Clocks	-
Maximum cable length to the sensor	30 m (see note)
Input filter limit frequency	typ. 1 kHz; depending on sensor length, conversion time, sensor type
Connection technology	2-wire
Open-circuit recognition	yes
Conversion time	approx. 5 s up to 40 ms, depending on configuration and filter setting, preset approx. 500 ms
Temperature range	defined in the range for each sensor (preset: type K; -200..+1370 °C); voltage measurement ±30 mV..±75 mV
Resolution	0.1 °C/ digit
Measuring error	< ±0.3 % (relative to full scale value FSV)
Open-circuit recognition	yes
Electrical isolation	500 V (E-bus/signal voltage)
Current consumption load voltage (Up contacts)	-
Current consumption via E-bus	190 mA
Special features	Idle detection, error detection of external cold junction compensation (CJC)
Permissible ambient temperature range during operation	-25 °C .. + 60 °C (extended temperature range)
Permissible ambient temperature range during storage	-40°C .. +85°C
Permissible relative air humidity	95 %, no condensation
Operating altitude	max.2,000 m
Dimensions (W x H x D)	approx. 12 mm x 66 mm x 55 mm
Pollution degree	2
Weight	approx. 30 g
Mounting	on signal distribution board
Mounting position	Standard
Position of the coding pins	2 and 7
Color coding	green
Vibration / shock resistance	conforms to EN60068-2-6 / EN 60068-2-27 (with corresponding signal distribution board)
EMC immunity / emission	conforms to EN 61000-6-2 /EN 61000-6-4 (with corresponding signal distribution board)
Protection class	EJ module: IP20 EJ system: dependent on the signal distribution board and housing
Approvals / markings	CE, EAC, UKCA, UL

CE approval

The CE Marking refers to the EtherCAT plug-in module mentioned above.
If the EtherCAT plug-in module is used in the production of a ready-to-use end product (PCB in conjunction with a housing), the manufacturer of the end product must check compliance of the overall system with relevant directives and CE certification.
To operate the EtherCAT plug-in modules, they must be installed in a housing.

Maximum cable length to the sensor

Without additional protective measures, the maximum cable length from the EtherCAT Module to the sensor is 30 m. For longer cable lengths, suitable surge protection should be provided.