Wago 857-801 Data Sheet

Data sheet | Item number:857-801

Temperature signal conditioner for RTD sensors; Current and voltage output
signal; Configuration via software; Supply voltage: 24 VDC; 6 mm module
width

Color:

857-801

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Data sheet | Item number:857-801

Item description

Short description:

This temperature signal conditioner records Pt100, Pt200, Pt500, and
Pt1000 Sensors, as well as resistors up to 4.5 kOhm, converting the temperature signal into a standard analog signal on the output side.

Features:

PC configuration interface

For Pt100, Pt200, Pt500 and Pt1000 sensors, as well as resistors up to 4.5 kOhm

2-, 3-, and 4-wire connection technology.

Detect calibrated measurement range switching

Detect wire break/sensor short circuit

Measurement range underflow/overflow

Integrate a switchable clipping function to limit the standard analog signal to the upper range values

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

Note:

Additional setting options as well as output signal inversion via interface configuration software or interface configuration app

Data

Technical Data

Configuration

Configuration options DIP switches

Interface configuration software
Interface configuration app

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Data sheet | Item number:857-801

Input

Input signal type Pt sensors

Resistance

Input – RTD sensors

Sensor types (RTD) Pt100

Pt200
Pt500
Pt1000

Sensor connection 2-wire; 3-wire; 4-wire (switchable)

Max. sensor supply current (RTD) ≤0.5mA

Measurement range temperature (RTD) -200 … 850°C

Min. measuring span (RTD) 50 K

Input – Resistors

Input range resistance 0 … 1kΩ;0 … 4.5kΩ

Min. measuring span 50 Ω

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. 180ms (2-wire);360ms (3-wire)

Measurement error

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

Transmission error of set measurement range ≤ ((10 K/set measurement range [K]) + 0,1) %

Temperature coefficient ≤ 0.02 %/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

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Data sheet | Item number:857-801

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

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

Color light gray

Fire load 0 MJ

Weight 35.1 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 4045454502713

Customs Tariff No. 85437090300

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Data sheet | Item number:857-801

Approvals / Certificates

Ex-Approvals

Logo Approval Additional Approval Text Certificate name

IECEx

TUEV Nord Cert GmbH

EN 60079-0 TÜV_14_ATEX_112692_X

IECEx

TUEV Nord Cert GmbH

IEC 60079-0 IECEX_TUN_14.0030_X

Ship Approvals

Logo Approval Additional Approval Text

Certificate
name

BV

Bureau Veritas S.A.

- 40179_A0

DNV GL

Det Norske Veritas, Germanischer Lloyd

- TAA00001D1

NK

Nippon Kaiji Kyokai

- TA17255M

PRS

Polski Rejestr Statków

- TE/2186
/880590/18

UL-Approvals

Logo Approval Additional Approval Text

Certificate
name

UL

UL International Netherlands B.V. (ORDINARY
LOCATIONS)

UL 508 E175199

Sec.4

Compatible products

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