VersaLog VL-WF-TH

  • The 16-bit analog-to-digital converter meets most high-resolution requirements
  • 8-megabyte memory stores up to 4 million measurements
  • Eight external thermistor/resistor inputs
  • Both USB and WiFi (requires external power) interfaces
  • Wide sampling interval selections (1 second to 12 hours)
  • Siteview software required (1 license per site) and sold separately

$688.00

Additional Equipment Required

Description

The VersaLog VL-WF-TH Wireless Thermistor Temperature Data Logger

The VL-WF-TH WiFi Thermistor Data Logger is an 8-channel, battery-powered, standalone, and WIFI-enabled thermistor data logger. The logger measures eight external thermistors and saves data in 8 megabytes of memory.

Embedded WIFI module allows remote data monitoring and downloading.

16-bit ADC makes it well suited for science and laboratory applications where precise and accurate measurements are critical.

Its aluminum enclosure makes it excellent in the harshest industrial environment.

Simply power the logger in WIFI covered area and access it from your computer for configuration, downloading graph viewing, and more…

SiteView software required (1 license per site) and sold separately. 

Memory Capacity


All VersaLog data loggers come with 8MB onboard flash memory. The following table shows the relationship between the number of enabled channels, sampling interval, and max time span of logging.

Sampling Interval Number of Channels Logging Capacity
1 min 1 7.96 years
1 min 2 3.98 years
1 min 8 362 days
10 sec 1 1.33 years
10 sec 2 242 days
10 sec 8 60 days
1 sec 1 48 days
1 sec 2 24 days
1 sec 8 6 days
100 milliseconds 1 116 hours
100 milliseconds 2 58 hours
100 milliseconds 8 14.4 hours

Specifications

Inputs
Connections Pluggable terminal block for eight external channels
Channels Eight external thermistor/resistor inputs. (10000 ohms NTC
thermistor recommended)
Resolution 0.0018%
Accuracy +/- 0.2% FSR @ 25°C
Alarms
Channel Alarms Two editable alarm thresholds per channel
Alarm Indicator On-board LED lights in red when in alarm condition.
On-Board Memory
Capacity 8 megabytes (~4 million measurements)
Data Retention Over 20 years
Sampling & Logging
Sampling interval 1 second to 12 hours user selectable
Logging Mode Stop recording or FIFO when memory is full
Logging Activation Programmable instant, start delay or field push-button activation
Communications
Interface USB (USB cable included), WiFi Module (USB wall adapter included)
WiFi Module Standard: 802.11b/g/n,
Frequency Range: 2.412 – 2.484GHz
Transmit Power: 11-18 dBm
Receive Sensitivity: -82 to -93 dBm
Security: WEP/WPA-PSK/WPA2-PSK
Encryption: WEP64/WEP128/TKIP/AES
Can be Enabled/Disabled by SiteView software
Battery
Power Built-in 3.6V Lithium Battery
Life Cycle 10 years based on 1-minute sampling interval
Software
SiteView Configuration, downloading, plotting, real-time view, custom calibration
and custom equation
Requirements Computer with 1.0 GHz or faster processor
1 GB Memory or higher
10 GB of available hard-drive space or higher
Windows XP with SP2 or later, Vista, Window 7, 8, 10
At least one USB port
Physical
Material Aluminum enclosure
Dimensions 88 X 64.2 X 24 mm (3.46 X 2.53 X 0.95 inches)
Weight 200g
Mounting Probe/wall mount holes for hanging/mounting
Other
LED Indicator Normal Sampling: green when sampling
Alarm: red when sampling
Low Battery: amber when sampling
Operating Environment -40 ~ +70°C (-40°F ~ 158°F), 0~95%RH non-condensing
Clock Accuracy +/- 1 minute per month
Approvals CE, FCC

Software

Siteview Software

VersaLog SiteView Software

SiteView is a Windows-based application which works with the VersaLog Series data loggers for downloading, configuration, data analyzing and plotting. Its user-friendly graphic interface plus powerful functionality fit both novice and advanced users.

The versatility of custom equation and custom-line equation handle complicated measurement requirements.

  • Supports USB, Serial port and Ethernet connections for easy local and remote access
  • Fast communication speed up to 115200 bps makes downloading fast
  • Real-time view and chart recording replaces chart recording device
  • Custom equation and custom-line equation solves scientific and laboratory algorithm difficulties
  • Zoom in/zoom out, annotation/label of graph functions provide detailed view of data
  • Multiple file loading allows easy data comparison.
  • Dynamic statistics provides detailed information of current zoomed view
  • One license per site required, can be used on multiple loggers.

Software Requirements:

  • Computer with 1.0 GHz or faster processor
  • 256K Memory or higher
  • 1.0 GB of available hard-drive space or higher
  • Windows XP with SP2 or later, Vista, Windows 7 and 8
  • At least one USB port or one COM port

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