W&T connects
Interfaces for TCP/IP, Ethernet, RS-232, RS-485, USB, 20mA, glass and plastic fiber optic cable, http, SNMP, OPC, Modbus TCP, I/O digital, I/O analog, ISA, PCI
Data sheet:

Web Thermometer Relay

  • High resolution picture

Measure, log and switch...

The Web-Thermometer is a measuring instrument which detects temperatures and makes the values available in the network. When a limit is exceeded a digital relay output can be switched. The device includes an integrated data logger and numerous Web and network services for manual querying of the measurements, or autonomous sending of messages.

Properties

Sensor:

  • Pt100 temperature sensor:
    • Measuring range of W&T probe: -50°C...180°C
    • Measuring input: -200°C...650°C

Connectivity:

  • Digital semiconductor relay output
  • Monitor temperatures and trends from a browser
  • Alarm and reporting function:
    • E mail for alarm or as reporting function
    • SNMP polling / alarm traps
    • Configure up to 12 alarm messages
  • Dynamic integration into other Web sites:
    • Direct access to current measurement values, e.g. JavaScript (AJAX).
  • Current Industry 4.0 protocols:
    • REST and MQTT support
  • Additional software interfaces for incorporating into your systems/databases:
    • OPC server
    • Syslog
    • Sensobase (database integration via ODBC)
    • TCP and UDP sockets, client and server
    • FTP (data logging)
  • Possible applications:
    • Monitor temperatures in the server room, network cabinet or office
    • Integrated semiconductor relay turns connected devices on and off
    • Direct display of multiple measuring points in the browser via Java applet
    • Logging of measurements via FTP, Excel file, email attachment and internal memory
    • Green IT: Monitor efficiency of the server room climate control

Data logger:

  • Internal data logger
    • Memory capacity: min. 16 weeks, max. 20 years
    • Save frequency: 15, 30 sec, 1, 5, 15, 60 min
  • Document measurement data online in the W&T Cloud and access from anywhere in the world
  • Internal clock
    • Time synchronization via time server calibration
    • Battery-backed device clock

Standards & more

  • optional: ISO factory calibration per DIN EN ISO/IEC 17025
    • with calibration certificate for verified documentation of the measured value deviations
    • Valid for 12 months
  • optional: DAkkS/DKD calibration per DIN EN ISO/IEC 17025
    • with calibration certificate for verified traceability to national standards
    • Valid for 12 months
  • Supply voltage via Power-over-Ethernet (PoE)
    • Phantom power using data pairs
    • Power over unused wire pairs
    • External power supply is an alternative
  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee

Technical data

Connections:

  • Temperature sensor:
    • Pt100
    • Screw terminal for Pt100/Pt1000
    • Cable length: 2m (can be extended as needed)
  • Digital output:
    • Semiconductor relay
  • Network:
  • Galvanic isolation:
    • Measurement inputs to network: min. 500V
  • Supply voltage:
    • Power-over-Ethernet or
    • 12-48V DC (+/-10%) or
    • 18Veff-30Veff AC (+/-10%) via screw terminal
  • Current consumption:
    • typ. 62mA @24VDC, 80mA @20VAC
    • max. 70mA @24VDC, 40mA @48VDC
    • PoE Class 1 (0.44 - 3.84W)

Measuring unit:

  • Sensor:
    • Pt100/Pt1000 connection, 2-, 3- or 4-wire
  • Measuring range:
    • W&T sensor: -50°C...180°C
    • PT100/PT1000 measuring input: -200°C...650°C
  • Resolution:
    • 1/10°C
  • Measuring error:
    •  
  • Measuring unit
    • ±0.3°C, ±0.2% Enlarge diagram
  • PT100/1000 Sensor Class A
    • ±0.15°C, ±0.2% Enlarge diagram
  • Storage frequency:
    • 15, 30 sec., 1, 5, 15, 60 min
  • Memory depth (6MB):
    • min. 16 weeks, max. 20 years
  • Deviation of the internal clock:
    • max. 1 min. / month
  • Measuring frequency:
    • 4 seconds

  • semiconductor relay output
    •  
  • Digital output:
    • 1 potential-free contact, semiconductor relay
  • max. switching current:
    • typ. 300mA AC/DC (peak 500mA)
  • max. switching voltage:
    • 39V AC/DC
  • max. switching capacity:
    • 11.7W AC/DC

Housing and other data:

  • Housing:
    • Plastic compact housing for top-hat rail mount
    • 105x22x75mm (LxWxH)
  • Enclosure rating:
    • IP20
  • Weight:
    • approx. 200g
  • Ambient storage temperature:
    • -40..+70°C
  • Ambient operating temperature:
    • 0 .. +60°C
  • Scope of delivery:
    • 1x Web-Thermometer Relay for DIN rail mounting
    • 1x Pt100 sensor
    • 1x Quick Guide
    • 1x product CD with WuTility management tool, OPC server, SNMP-MIB, reference manual German/English

Accessories

  • Power supplies

    • Plug-in power supply, 24V / 500mA DC with Euro plug
    • 11021
    • 19.00€
    • Plug-in Power Supply, 24V / 750mA DC with Euro, US and UK plug
    • 11026
    • 34.00€
    • Power Supply for DIN rail mount, 24V / 630mA DC
      (merchandise, 2-year manufacturer’s guarantee)
    • 11080
    • 29.00€
  • Storage and Visualization

    • Motherbox 3
    • 50504
    • 298.00€
  • Measuring - Accessories

    • Pt-100 external probe, class B, 4-wire, IP65 housing
    • 57014
    • 48.00€
    • ISO factory calibration, 1x 3 temperature points for complete device with calibration certificate, valid for 12 months
      Delivery time approx. 10-14 days
      (This article cannot be ordered as a sample.)
    • 57013
    • 198.00€
    • Accredited DAkkS/DKD calibration, 1x 3 temperature points for complete device with calibration certificate, valid for 12 months
      Delivery time approx. 10-14 days
      (This article cannot be ordered as a sample.)
    • 57029
    • 298.00€
  • Further accessories

    • 230V coupling relay for Web-IO Digital - 1 x changeover
      for DIN rail mount
    • 57015
    • 19.80€
    • 230V coupling relay for Web-IO Digital - 2 x changeover
      for DIN rail mount
    • 57016
    • 19.80€
  • Mechanical Accessories

    • Mounting bracket for wall mounting
    • 58812
    • 9.98€
    • 19" DIN rail
    • 58813
    • 19.00€
  • Supplementary network products

    • Ethernet Switch Industry, 4 Port
    • 55604
    • 198.00€
  • Software

    • Web-IO2Go (app for iOS)
    • 57700
    • free
    • Download

* Our offering is intended only for commercial users. We will be happy to refer private end customers to trading partners through whom our products can be purchased.