Wago 857-812 Data Sheet

Data sheet | Item number:857-812

JUMPFLEX® transducer; Temperature transducer; Thermocouple

857-812

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Data sheet | Item number:857-812

Item description

Short description:

This temperature signal conditioner records signals from type K, S, B and R thermocouples and converts the temperature signal into a standard
analog signal on the output side.

Features:

For type K, S, B and R thermocouples

Cold junction compensation (on/off)

Switching between measurement ranges is calibrated

Detect sensor's wire break

Detection: measurement range underflow/measurement range overflow

Clipping function limits the analog standard signal to the upper range values

Safe 3-way isolation with 2.5 kV test voltage per EN 61140

Data

Technical Data

Configuration

Configuration options DIP switches

Input

Input signal type TC sensors

Input – TC sensors

Sensor types (TC) Type K

Type S

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Data sheet | Item number:857-812

Type S

Type B
Type R

Measurement range temperature (TC) 0 … 1200°C (Type K);0 … 1600°C (Type S);600 … 1800°C (Type

B);0 … 1600°C (Type R)

Cold junction compensation On/Off (Default: On)

Cold junction error 3 K (typ. 2 K )

Output

Output signal type Current

Voltage

Output signal voltage 0 … 5 V; 1 … 5 V; 0 … 10 V; 2 … 10 V

Output signal current 0 … 10 mA; 2 … 10 mA; 0 … 20 mA; 4 … 20 mA

Load impedance (output/voltage) ≥2kΩ

Load impedance (output/current) ≤600Ω

Signal processing

Step response typ. 60ms (cold junction compensation off);120ms (cold junction

compensation on)

Measurement error

Transmission error typ. ≤ 0.1 % at max. measuring span

Transmission error of set measurement range ≤ (150 K/set measurement range [K]) %

Temperature coefficient ≤ 0.04%/K

Power supply

Type of power supply 24 VDC

Nominal supply voltage U

S

DC24V

Supply voltage range ±30%

Current consumption at supply voltage ≤40mA

Safety and protection:

Test voltage (input/output/supply) AC 2.5kV;50Hz;1min

Protection class IP20

Connection data

Connection technology

Push-in CAGE CLAMP

®

Solid conductor 0.08 … 2.5mm²/ 28 … 14AWG

Fine-stranded conductor 0.34 … 2.5mm²/ 22 … 14AWG

Strip length 9 … 10mm/ 0.35 … 0.39inch

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Data sheet | Item number:857-812

Geometrical Data

Width 6mm/ 0.236inch

Height from upper-edge of DIN-35 rail 97.8mm/ 3.85inch

Depth 94mm/ 3.701inch

Mechanical data

Type of mounting DIN-35 rail

Material Data

Fire load 0 MJ

Weight 35.7 g

Environmental Requirements

Surrounding air (operating) temperature -25 … 70°C

Surrounding air (storage) temperature -40 … 85°C

Standards and specifications

Conformity marking 1

EMC immunity to interference EN 61000-6-2

EMC emission of interference EN 61000-6-4

Commercial data

Product Group 6 (Interface Electronics)

Country of origin DE

GTIN 4050821255291

Customs Tariff No. 85437090300

Approvals / Certificates

Ship Approvals

Logo Approval Additional Approval Text

Certificate
name

DNV GL

Det Norske Veritas, Germanischer Lloyd

- TAA00001D1

PRS

Polski Rejestr Statków

- TE/2186
/880590/18

UL-Approvals

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