General technical data

Analog inputs

EL3314

Number of inputs

4

Thermocouple sensor types, measured variables

Types B, C, E, J, K, L, N, R, S, T, U (default setting type K), mV measurement

Connection technology

2-wire

Maximum cable length to the thermocouple

30 m (without protective measures), suitable surge protection must be provided for longer cable lengths

Resolution

internal 16 bit

Sampling type

multiplex

Ground reference

Differential

Conversion time

approx. 2.5 s to 20 ms,
depending on the configuration and filter setting, default: approx. 250 ms

Input filter cut-off frequency

typ. 1 kHz

Software filter

5 Hz...30 kHz, adjustable, notch characteristic; preset: disabled

Wire break detection

yes (can be disabled)

Supports NoCoeStorage function

yes, from firmware 01

Voltage measurement

EL3314

Measuring range, technically available

approx. ± 78 mV

Measuring ranges (nominal) and resolution

± 30 mV (1 µV per digit, thus max. 32.768 mV can be displayed)

± 60 mV (2 µV per digit, thus max. 65.536 mV can be displayed)

± 75 mV (4 µV per digit, thus max. 131 mV can be displayed, observe technical measuring range)

The measuring ranges 30 and 60 mV are executed in software to increase the resolution and always use the same electrical measuring range of ± 75 mV.

Measurement uncertainty

See Measurement ±30 mV...±75 mV

Temperature measurement

EL3314

Electrical measuring range used

± 75 mV

Measuring ranges 1)

Type B: +200...+1820 °C

Type C: 0...+2320 °C

Type E: -270...+1000 °C

Type J: -210...+1200 °C

Type K: -270…+1372 °C (preset)

Type L: -50...+900 °C

Type N: -270...+1300 °C

Type R: -50...+1768 °C

Type S: -50...+1768 °C

Type T: -270...+400 °C

Type U: -50...+600 °C

Resolution

Temperature display 0.1/0.01 °C per digit, preset 0.1 °C

Note: internally, 16 bit are used for the calculation up to the FSV; depending on the set thermocouple, therefore, jumps in value >0.01 °C occur with "resolution 0.01 °C"; e.g. type K: approx. 0.04 °C.

Measurement uncertainty

See Thermocouples measurement

1) from FW10, Rev0025

Supply and potentials

EL3314

Power supply for the electronics

via the E-bus

Current consumption via E-bus

typ. 200 mA

Differential voltage between +TC and -TC

Recommended area of application

respective measuring range

Destruction limit, short-term/continuous

±15 V

Max. potential of the twisted TC ends to one another

(non-isolated/grounded TC)

Recommended area of application

±2 V

Destruction limit, short-term/continuous

±15 V

Max. potential UCM (CommonMode voltage) of the twisted TC to GND

Recommended area of application

Not applicable because GND is not accessible

Destruction limit, short-term/continuous

Max. potential of twisted TC or GND to SGND or 0 V power

Recommended area of application

±30 V

Destruction limit, short-term/continuous

±50 V

Electrical isolation: max. potential of twisted TC or GND to bus side

Recommended area of application and short-term/continuous destruction limit

500 V

Communication

EL3314

Configuration

via TwinCAT System Manager

Width in the process image

max. 16 bytes input,
max. 8 bytes output

Distributed Clocks

-

Environmental conditions

EL3314

Permissible ambient temperature range during operation

-25 °C...+60 °C (extended temperature range), from firmware 06

Permissible ambient temperature range during storage

-40 °C…+85 °C

Permissible relative air humidity

95 %, no condensation

General data

EL3314

Dimensions (W x H x D)

approx. 15 mm x 100 mm x 70 mm (width aligned: 12 mm)

Weight

approx. 60 g

Installation

on 35 mm mounting rail, conforms to EN 60715

Installation position

variable

Standards and approvals

EL3314

Protection rating

IP20

Vibration / shock resistance

conforms to EN 60068-2-6 / EN 60068-2-27,
see also Installation instructions for enhanced mechanical load capacity

EMC immunity / emission

conforms to EN 61000-6-2 / EN 61000-6-4

Identification / approval*)

CE, UKCA, EAC
ATEX, IECEx, cFMus, cULus

*) Real applicable approvals/markings see type plate on the side (product marking).

Ex markings

Standard

Marking

ATEX

II 3 G Ex nA IIC T4 Gc

IECEx

Ex nA IIC T4 Gc

cFMus

Class I, Division 2, Groups A, B, C, D
Class I, Zone 2, AEx/Ex ec IIC T4 Gc

Terminal

Extended features

Electrical isolation

TwinSAFE SC

high-precision

Calibration certificate

EL3314

No

No

No

No

EL3314-0002

Yes

No

Yes

No

EL3314-0010

No

No

Yes

No

EL3314-0020

No

No

Yes

Factory working standard calibration certificate

EL3314-0030

No

No

Yes

External calibration certificate (ISO17025 or DAkkS certificate)

EL3314-0090

No

Yes

No

No

EL3314-0092

Yes

Yes

Yes

No