The Tinker & Rasor DL-1 Data Logger is a portable, battery operated, four-channel data logger capable of measuring DC and AC volts and amps. Its small diameter (1-1/2") allows it to be concealed in the riser of most test stations. The environmentally sealed case is ideally suited for buried or wet applications. Its sampling rate can be as slow as once every 99 minutes to as fast as 512 times a second, allowing it to record light rail and telluric events. Slower sample speeds can help pinpoint the time it take for pipelines to reach their native potential, even if it takes weeks.

• 540,000 readings in memory.
• Record 512 times a second to once every 99 minutes.
• Data backup battery.
• 4 channels with independent ground.
• 2 channels with AC filtering, 0-5V.
• 1 channel with DC filtering, 0-300V RMS.
• 1 channel with no filtering, 0-100V.
• 10 MΩ impedance.
• RS232 serial connection to PC.
• Status LED on instrument.
• Easily concealed in T&R T-3 CP test station riser pipe.

• Leave-behind data logger
• Cathodic protection readings over time
• Structure-to-cell readings
• Anode output readings
• Telluric events
• Stray current readings

TRAC Software

Tinker & Rasor TRAC (True Recording And Capture) software is included with the DL-1 Datalogger. It will run on any Windows® platform PC, Palm® OS or Handspring® PDA platform for fast programming and downloading of data from the DL-1, both in the office or out in the field. The TRAC software displays over 540,000 samples with date and time stamp in both spreadsheet and graph modes with many easy-to-use features and export functions. Spreadsheet and graph data cannot be manipulated nor figures changed using TRAC. The software is upgradeable via Tinker & Rasor's website at NO CHARGE.

Easy-to-use menus allow for quick setup or change. A notepad is provided for recording additional information such as test station location. Spreadsheets or graphs display channel voltage, current and/or event data. Each logged event has a date and time stamp. Data collection can be started and stopped by a programmed time/date.

• Channel 1:  Bipolar DC analog input with automatic AC rejection for data collection and recording traditionally preformed with a digital voltmeter.
• Channel 2:  Bipolar DC analog input for data collection and recording traditionally preformed with an oscilloscope or waveform analyzer. Software configurable for DC current readings with the appropriate shunt.
• Channel 3:  AC analog input. Software selectable voltage input.
• Channel 4:  Bipolar DC analog input. Software configurable for AC current readings with optional amp probe.

• Data Storage:  540,000 samples.
• Recording Duration:  0.002 seconds to years.
• Sampling Frequency:  As fast as 512 Hz, as slow as one sample every 99 minutes (all channels)
• Data Memory Battery Life:  10 years.

• Interface:  RS-232. PC or PDA.
• Data Rates:  9600 bps to 115.2 kbps.

• Power Supply:  9V battery.
• Battery Life:  Up to 2 months with a 9V alkaline.
• Temperature:
  Operating:  -10°C to 60°C (14°F to 140°F).
  Storage:  -20°C to 70°C (-4°F to 158°F).
• Status Indication:  LED indication of Data Logger On/Off, data collection start, logging stopped / complete, low battery, and memory full.
• Dimensions & weight:
  Instrument:  10.75" x 1.5" x 1.5", 0.5 lbs (273 x 38 x 38 mm, 0.227 kg).
  Kit:  12" x 6.75" x 4.5f1, 2 lbs (305 x 171 x 114 mm, 0.91 kg).
  Shipping:  13" x 7.5" x 5", 4 lbs (330 x 191 x 127 mm, 1.81 kg)