Web-Graph Air Quality
Web-Thermometer Pt100/Pt1000
2.535,00 kr. (ex. VAT) Original price was: 2.535,00 kr. (ex. VAT).1.901,25 kr. (ex. VAT)Current price is: 1.901,25 kr. (ex. VAT).
Web-IO 4.0 Digital, 2xInput, 2xOutput
2.535,00 kr. (ex. VAT)
Web-Graph Air Quality
WT57718
Temperatures, relative humidity and air quality (VOC) over a Power-over-Ethernet network!!!!
2.985,00 kr. (ex. VAT) Original price was: 2.985,00 kr. (ex. VAT).2.238,75 kr. (ex. VAT)Current price is: 2.238,75 kr. (ex. VAT).
1 in stock
Description
Monitor air quality
On-demand ventilation control in office buildings, schools, education and centers and sports facilities often involve measurement of CO2. But a drawback of CO2 measurement is that odors caused by VOC are not detected, since they have only a slight effect on the CO2 measurements. Even though there is an actual ventilation need, this condition is not detected using traditional technology. With this VOC measuring instrument the room air quality can be determined based on human perception. More information on VOC can be found hereProperties
Sensor:
- Temperature sensor:
- Measuring range: 0°C...85°C
- Relative humidity sensor:
- Measuring range 5..95% RH, permissible ambient 0..95% (non-condensing)
- Air quality sensor:
- Measuring range 450..2000ppm VOC as CO2 equivalent
Connectivity:
- Configurable LED tower on sensor for optical indication of limit values
- 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 via AJAX, JavaScript and Java applet
- 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 capacity: min. 7 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
- 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
Teknical Data
Connections and displays: |
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| Combined sensor: | Temperature, relative humidity, air quality 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 | |||||||||||||||
| Power supply: | 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" | |||||||||||||||
| Power consumption: | PoE Class 1 (0.44 - 3.84W) typ. 87mA @24VDC, 110mA @20VAC, max. 95mA @24VDC, 55mA @48VDC | |||||||||||||||
| Displays: | 1 LED power 2 LEDs network status 4 LEDs status and error 3 LEDs traffic-light display in sensor | |||||||||||||||
Measuring unit: |
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| Measuring range: | 0°C...85°C, 5..95% RH, 450-2000ppm VOC as CO2 equivalent | |||||||||||||||
| Resolution: | 1/10 °C, 1/10% rH | |||||||||||||||
| VOC sensor, detected substances: |
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| Measuring error: | Temperature: | |||||||||||||||
| typ. @ 25°C ±0.3°C max. @ 0..50°C ±1.2°C | ||||||||||||||||
| Relative humidity: | ||||||||||||||||
| typ. @ 25°C ±3%rH max. @ 0..50°C ±7%rH (0-100%rH) Long-term stability typ. <0.5%rH / year | ||||||||||||||||
| Aging of the VOC sensor: | Aging of the sensor is internally compensated for. It is however recommended that a CO2 comparison measurement be performed once a year. | |||||||||||||||
| Measuring frequency: | 4s | |||||||||||||||
| Storage frequency: | 15s, 30s, 1m, 5m, 15m, 60m | |||||||||||||||
| Memory depth (4MB): | min. 7 weeks, max. 20 years | |||||||||||||||
Housing and other data: |
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| Housing: | Plastic compact housing for top-hat rail mount 105x22x75mm (LxWxH) | |||||||||||||||
| 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-Thermometer Air Quality for DIN rail mounting 1x W&T prober, 2m (temperature/relative humidity & VOC) 1x product CD with WuTility management tool, OPC server, SNMP-MIB, reference manual German/English | |||||||||||||||
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