Product specifications
WuT 57720
Web-Thermo-Hygrograph
Temperatures and relative humidity to the Power-over-Ethernet network.
Like all models in the Web-IO Climate series, the Web-Thermo-Hygrograph 57620 provides everything you need for connecting a temperature and relative humidity sensor to the computer network. In addition, the supply voltage, in accordance with IEEE 802.3af (Power-over-Ethernet) can be provided over the network cable, with both phantom power over the data pairs as well as power using the wire pairs not used for 10/100BT. Problems with receptacles, country-specific plug types, different line voltages etc. are a thing of the past.
For cases in which PoE is planned but not yet fully implemented, it is also possible to provide power using an external power supply and screw terminals.
Sensor:
-Temperature sensor:
-Measuring range: -40°C...85°C
-Relative humidity sensor:
-Measuring range 0..100% RH, permissible ambient: 0..95% (non-condensing)
Connectivity:
-Intuitive Web interface for simpler configuration
-Monitor temperatures and trends from a browser
-Alarm and reporting function:
-E-mail for alarm or reporting functions
-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
-Direct display of multiple measuring points in the browser via Java applet
-Logging of measurements via FTP, Excel file, email attachment and internal memory
-Dewpoint measurement, climate monitoring
-Green IT: Monitor efficiency of the server room climate control
-Data logger:
-Internal data logger
-Memory size: min. 12 weeks, max. 20 years
-Save frequency: 15s, 30s, 1m, 5m, 15m, 60m
-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
Connections and displays:
- Combined sensor: Temperature and relative humidity measurement, DB9 receptacle, Cable length: 2m (can be extended to max. 20m)
- Network: 10/100BaseT Autosensing/Auto-MDIX, RJ45, IPv6 on request
- Galvanic isolation: Network connection min. 1500 V
- Supply voltage: Power-over-Ethernet (PoE) or DC 12V .. 48V (+/-10%) or AC 18Veff .. 30Veff (+/-10%)
- Supply connection: Plug-in screw terminal, 5.08mm spacing, Labeled "L+" and "M"
- Current consumption: PoE Class 1 (0.44 - 3.84W), typ. 62mA @24VDC, 80mA @20VAC, max. 70mA @24VDC, 40mA @48VDC
- Displays: 1 LED Power, 2 LEDs Network Status, 4 LEDs Status and Error
Measuring unit:
- Measuring range: -40°C...85°C, 0..100% rh
- Resolution: 1/10 °C, 1/10% rH
- Measuring error: Temperature: typ. @ 25°C ±0.3°C, max. @ -40..85°C ±1.5°C
- Relative humidity: typ. @ -20..60°C (normal range) ±1.8%rH (10-90%rH), max. @ -20..60°C (normal range) ±4%rH (0-100%rH, temporary @ -40..85°C (max range) +3%rH nach 60h Operation outside normal range, Long-term stability typ. <0.5%rH / year
- Measuring frequency: 4s
- Storage frequency: 15s, 30s, 1m, 5m, 15m, 60m
- Memory depth (4MB): min. 12 weeks, max. 20 years
Housing and other data:
- Housing: Plastic compact housing for top-hat rail mount, 105x22x75mm (LxWxH)
- Enclosure rating: IP20
- Weight: approx. 200g
- Ambient temperature: Storage: -40..+70°C, Operating: Non-contiguous mounting: 0 .. +60°C, contiguous mounting 0 .. +50°C
- Permissible relative humidity: 0..95% RH (non-condensing)
- Scope of delivery: 1x Web-Thermo-Hygrometer, 1x W&T SENSOR, 2m (temperature, relative humidity), 1x Quick Guide, 1x Product CD with WuTility management tool, manual, German/English
- Wiesemann & Theis product -
