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-Thermo-Hygrograph

  • Web-Thermo-Hygrograph

Monitor temperatures and relative humidity and display them graphically

The Web-Thermo-Hygrograph is a measuring device which senses temperatures and humidity and provides the values over the network.

Properties

General information

  • Graphic display of the stored temperature values
    • Display of a climatogram for alarm definition
    • Interactive display, user-scalable
    • Display of limit violations
    • Freely selectable line color
  • Monitor temperatures and curves with your browser
    • HTML page design user-variable
    • Direct access to current temperature value, e.g., for integration into other Web pages
  • SNMP temperature polling /Alarm traps for incorporating into your existing SNMP management system
  • E-mail for alarm or reporting functions
  • Adapters:
    • 10/100MBit
    • Combined temperature-humidity sensor included
  • Easy Start:
    • Connect sensor and network cable
    • Connect supply voltage
    • Assign IP number
    • That’s it!
  • Application examples:
    • Monitor temperatures in the server room, network cabinet or office
    • Direct display of multiple measuring points in the browser via Java applet
    • Send alarms when limits are exceeded via e-mail, SNMP trap, TCP client, Syslog
    • Logging of the measured values via FTP, Excel file, e-mail attachment, internal memory
    • Dewpoint measurement
    • Climate monitoring
  • Conforms to standards both in office and industrial environments:
    • Increased noise immunity for industrial areas
    • Stricter noise emission for residential and commercial areas

Technical data

  • Temperature sensor:
    • PT1000 sensor / PT100 connection
  • Humidity sensor:
    • W&T sensor, Skalar 0-2.5V
  • Network:
    • 10/100BaseT autosensing
  • Supply voltage:
    • 12-24V AC / DC using screw terminal
    •  

  • Measuring unit
    •  
  • Sensor:
    • PT1000, PT100 connection, 2-, 3- or 4-conductor
  • Measuring range:
    • W&T Sensor: -40°C...85°C, 0..100% rh
    • PT100/PT1000 measuring input: -200°C...650°C
  • Resolution:
    • 1/10°C
  • Measuring error:
    • ±0.3°C, ±2% (PT100, PT1000)) ±2.5% abs. ±5% rel. rF
  • Storage frequency:
    • 1, 5, 15, 60 min
  • Memory depth (64k):
    • min. 10 weeks, max. 12 years
  • Deviation of the internal clock:
    • max. 4.32 min. / month
  • Long-term stability of W&T sensor:
    • at 20-30 °C / 20-80% rel. humidity Drift: < 1.5 % / year
    •  

  • Other data
    •  
  • Galvanic isolation:
    • Signal inputs to network: min. 500 volts
  • E-mail function:
    • Mail for sending alarms or as reporting function
  • Supply voltage:
    • DC 12V (-5%) - 34V (+5%)
    • AC 9Veff (-5%) - 24Veff (+5%)
    • DC 48V (+10%) on request
  • Current consumption:
    • AVG: 200mA @12VDC, 100mA @24VDC, 100mA @20VAC
    • Max: 240mA @12VDC
  • Configuration interface:
    • RS232 serial port, 9600 baud, 8 data bits, 1 stop bit, no parity
  • Housing:
    • Plastic compact housing, 105x75x22mm
  • Weight:
    • approx. 200g
  • Ambient storage temperature:
    • -40..+70°C
  • Ambient operating temperature:
    • 0 .. +60°C
  • Scope of delivery:
    • 1x Web-Thermo-Hygrograph for rail mount
    • 1x W&T sensor (temperature and humidity)
    • 1x product CD with WuTility management tool, OPC server, programming examples for VB/Delphi, SNMP-MIB, reference manual in German/English

    • Please order power supplies separately as accessories