Universal Relay UR840IP

Monitoring Relay for Temperatures and analog signals
4 Limits, IP interface, built in webserver

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Part number

T224353

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Product description

 

Available 4th quarter 2022

Web-IO universal limit value relay with Ethernet interface, built-in web server and 8 inputs for temperature sensors or other analog signals. The UR840IP can be connected to the internet or an intranet and operated via TCP/IP from a normal PC with a suitable browser.
The device can simultaneously evaluate and monitor up to 8 different input signals. Each of the 4 output relays can be assigned up to 8 limit values, one per input. If a limit value is reached, an alarm is triggered and a relay switches. Example: Alarm 1 is activated when a temperature is exceeded at sensor input 3 (e.g. Pt 100) or the signal from a pressure transmitter (e.g. 4-20 mA) at input 5 falls below a limit value. The device also has an RS485 interface (Modbus RTU) and analogue outputs 0/2-10 V or 0/4-20 mA.

Accessory: Installation frame ER8 for panel mount

 

Applications

The TR800Web is used where one or more of the following features a required:

  • The UR840IP is used to advantage wherever the following features are required
  • monitor up to 8 different analogue measured values and transfer them to the Internet
  • Measured value query and remote maintenance via intranet/internet

8 Measuring inputs (every input individually programmable)

  • Pt 100 (RTD), Pt 1000 in 2- or 3-wire connection
  • PTC-sensors (thermistors)
  • Thermocouples type B, E, J, K, L, N, R, S, T
  • DC 0-10 V, DC 0/4-20 mA
  • Resistance 500 Ohm, resistance 30 kOhm
  • Virtual sensors: linking of measured values (difference, MIN/MAX)
  • 4 digital inputs with programmable functions

4 Alarms/Output Relays

  • 4 relays, potential-free change-over contacts
  • Remote switching command for relays via Ethernet
  • individually programmable for each alarm:
    • one limit value per measurement input/virtual sensor (switching and reset value)
    • switching and switch-back delay
    • Remote control of the relays (on/off) via browser
    • 2 out of x, alarm only if limit value is reached in 2 sensors

Interfaces:

  • Ethernet interface (http and modbus)
    • Modbus TCP protocol for reading data (port adjustable)
    • RS485 interface for reading data with Modbus (RTU)
    • 2 analogue outputs 0/2-10 V / 0/4-20 mA, configurable (optionally instead of RS485)

Connected to internet via web-browser

  • Measured values, min/max values with date/time stamp
  • Simulation of measured values
  • status of the alarms
  • Configuration of the inputs (name, type, compensation, scaling and unit)
  • Configuration of alarms (limit values, relay function, ...)
  • Data logging of measured values for each input, with time stamp
  • Logging interval adjustable from 10 seconds to 30 minutes.
  • alarm logging
  • network configuration and system settings
  • User management and password protection
  • Real-time clock with time server synchronization, power reserve 7 days

Displays and controls

  • LCD display and joystick for querying measured values and operation

 

Technical Data

Rated supply voltage Us

.......

ACC/DC 24-240 V, 0/50/60 Hz < 4 W < 12VA

 

Tolerance DC

.......

DC 20,4...297 V

 

Tolerance AC

.......

AC 20...264 V

 

Relay output

.......

4 x 1 changeover (CO)

 

Switching voltage

.......

max. AC 300V, DC 300 V

 

Type of contact

.......

Type 2 (see "general technical information")

 

Digital inputs

.......

app. DC 18 V / 3,5 mA

 

Pt 100, Pt 1000 according to EN 60751

Accuracy

.......

±0,5 % of measured value 1 K

 

Sensor current

.......

≤1 mA

 

Measuring cycle / measuring time tM

.......

<1 s depending on number and type of connected sensors

 

Thermocouples according to EN 60 584, DIN 43 710

Thermal drift

.......

< 0,01 % / K

 

Measuring error of the sensor line

.......

+0,25 μV / Ω

 

Accuracy of summing point

.......

±5 °C

 

Voltage- / Current input

Thermal drift

.......

< 0,02 %/K

 

Measuring time

.......

<= 40 ms

 

Measuring of resistance

Accuracy 0,0 … 500,0 Ω

.......

< 0,2 % of measured value ± 0,5 Ω

 

Accuracy 0…30,00 kΩ

.......

< 0,5 % of measured value ± 2 Ω

 

Measuring current

.......

≤ 0,6 mA

 

Housing

Design / Installation Frame

.......

V8, switchgear mount / Front mounting kit ER8, 8 TE

 

Dimensions (W x H x D)

.......

140 x 90 x 58 mm, mounting height 55 mm

 

Wire connection, one wire

.......

each 1 x 1,5 mm2

 

Stranded wire with insulated ferrules

.......

each 1 x 1,0 mm2

 

Protection class housing/terminals

.......

IP 30/IP 20

 

Attachment

.......

DIN rail 35 mm according to EN60715 or screws M4 (with 2 extra bars)

 

Weight

.......

app. 370 g

 

Downloads

Datasheet