Wago 857-811 Data Sheet
Data sheet | Item number:857-811
Temperature signal conditioner for thermocouples; Current and voltage
output signal; Configuration via software; Supply voltage: 24 VDC; 6 mm
module width
Color:
857-811
02.05.2019Page /1 14
Data sheet | Item number:857-811
Item description
Short description:
This temperature signal conditioner records signals from type J and K (E, R, N, S, T, B, C) thermocouples and converts the temperature signal into a
standard analog signal.
Features:
PC configuration interface
For type J and K (E, R, N, S, T, B, C) thermocouples
Cold junction compensation (on/off)
Switching between measurement ranges is calibrated
Detect sensor's wire break
Detect measurement range underflow/measurement range 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
857-811
02.05.2019Page /2 14
Data sheet | Item number:857-811
Input
Input signal type TC sensors
Input – TC sensors
Sensor types (TC) Type J
Type K
Measurement range temperature (TC) -150 … 1200°C (Type J);-150 … 1350°C (Type K)
Min. measuring span (TC) 100 K
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) ≥2kΩ
Load impedance (output/current) ≤600Ω
Signal processing
Step response typ. 60ms (cold junction compensation off);120ms (cold junction
compensation on)
Measurement error
Transmission error typ. ≤ 0.1 % at max. measuring span (Type J, K)
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
DC24V
Supply voltage range ±30%
Current consumption at supply voltage ≤40mA
Safety and protection:
Test voltage (input/output/supply) AC 2.5kV;50Hz;1min
Protection class IP20
857-811
02.05.2019Page /3 14
Data sheet | Item number:857-811
Connection data
Connection technology
Push-in CAGE CLAMP
®
Solid conductor 0.08 … 2.5mm²/ 28 … 14AWG
Fine-stranded conductor 0.34 … 2.5mm²/ 22 … 14AWG
Strip length 9 … 10mm/ 0.35 … 0.39inch
Geometrical Data
Width 6mm/ 0.236inch
Height from upper-edge of DIN-35 rail 97.8mm/ 3.85inch
Depth 94mm/ 3.701inch
Mechanical data
Type of mounting DIN-35 rail
Material Data
Color light gray
Fire load 0 MJ
Weight 36 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 4045454502751
Customs Tariff No. 85437090300
Approvals / Certificates
Ex-Approvals
Logo Approval Additional Approval Text Certificate name
IECEx
TUEV Nord Cert GmbH
EN 60079-0 TÜV_14_ATEX_112692_X
857-811
02.05.2019Page /4 14
Data sheet | Item number:857-811
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
Marking accessories
Item no.: 2009-110
Marking strips; on reel; not stretchable; plain; snap-on type
2009-110
857-811
02.05.2019Page /5 14
Loading...