Item no. 857-420

Isolation amplifier; Current input signal; Current and voltage output signal; Supply voltage: 24 VDC; 6 mm module width; 2,50 mm²

Description

Short description:

The Repeater Power Supply links 2- or 3-wire transmitters located in the field. It provides the power required and transmits the analog signals in an electrically isolated way.

Features:

  • Power supply to SMART transmitters
  • Switching between measuring ranges is calibrated
  • Safe 3-way isolation with 2.5 kV test voltage per EN 61140

Product details

Details

Technical Data

Configuration
Configuration options DIP switches
Input
Input signal type Current
Input signal, current 0 … 20 mA; 4 … 20 mA
Input resistance (intput/current) ≤ 50 Ω
Sensor supply Uv = 18 V; 30 mA
Max. input current 50 mA
Output – Analog
Output signal type Current
Voltage
Output signal voltage 0 … 5 V; 1 … 5 V; 0 … 10 V; 2 … 10 V
Output signal current 0 … 20 mA; 4 … 20 mA (calibrated switchable)
Load impedance (output/voltage) ≥ 2 kΩ
Load impedance (output/current) ≤ 600 Ω
Offset ≤ 20 µA
Residual ripple ≤ 10 mV (rms)
Signal processing
Max. operating frequency 100 Hz
Step response typ. 3.5 ms
Measurement error
Transmission error typ. ≤ 0.1 % of upper range value
Temperature coefficient ≤ 0.01 %/K
Power supply
Type of power supply 24 VDC
Nominal supply voltage US DC 24 V
Supply voltage range ±30 %
Current consumption at supply voltage ≤ 45 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
Weight 37 g

Environmental Requirements

Surrounding air (operating) temperature -25 … 70 °C
Surrounding air (storage) temperature -40 … 85 °C

Standards and specifications

Conformity marking CE

Commercial data

Product Group 6 (Interface Electronics)
Packaging type bag
Country of origin DE
GTIN 4045454471330
Customs Tariff No. 85437090300

Approvals / Certificates

Ex-Approvals

Approval
Additional Approval Text
Certificate name
Language
Approval: UL
UL International Germany GmbH (HAZARDOUS LOCATIONS)
Additional Approval Text ANSI/ISA 12.12.01
Certificate name: E198726 Sec.4

Ship Approvals

Approval
Additional Approval Text
Certificate name
Language
Approval: DNV GL
Det Norske Veritas, Germanischer Lloyd
Additional Approval Text -
Certificate name: TAA00001D1

UL-Approvals

Approval
Additional Approval Text
Certificate name
Language
Approval: UL
UL International Netherlands B.V. (ORDINARY LOCATIONS)
Additional Approval Text UL 508
Certificate name: E175199 Sec.4

Downloads

CAD/CAE-Data

CAD data

2D/3D Models 857-420

CAE data

EPLAN Data Portal 857-420
WSCAD Universe 857-420

Compatible products

General accessories

Item no.: 857-979
Supply and through module; 2,50 mm²
Signal Conditioners and Isolation Amplifiers > Item no. 857-979

Supply and through module; 2,50 mm²

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Marking accessories

Power supplies

Interface module

Installation Notes

1 picture
Configuring

Configuration via DIP switches

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1 picture
Jumpered

Commoning, not discrete wiring – same outline allows the use of a single in-line, push-in jumper

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