Barometric Logger

The Heron Instruments barLog, barometric logger is used to automatically compensate readings stored on the dipperLog for changes in barometric pressure. The barLog, with readings every 1 hour and a memory capacity of 128,000 data points,  is recommended for long term monitoring or where more than one logger is deployed within a 5 km radius.

The dedicated, intuitive software makes the dipperLog quick and easy to program and launch. Simply recover your data, save your findings in a tabular display and graph, view both parameters side by side in a split screen.

“It is the Distributor’s and/or User’s responsibility to ensure chemical, temperature, radiative, and shock compatibility with their site(s) before, during and after deployments. Not doing so will void any and all warranties”

  • Memory – 128,000 data sets (barometric pressure and temperature readings)
  • Download Speed – 128,000 data points in 6 minutes (21,333.33 Sets/min)
  • Battery – up to 15 years or 5,000,000 readings (depending on usage)
  • Calibration Certificate provided with each logger
  • Machined, 316 marine grade stainless steel body and transducer
  • Able to convert deployment options easily in the field
# of Data Points128,000
Download Speed21,333.33 Data Sets/min (128,000 readings downloads in 6 minutes)
Water Level Accuracy (Typical)+/- 0.05%FS (0°C to 50°C)
Temperature Accuracy (Typical)+/- 0.05°C 
(Temperature Sensor Meets 
ASTM E1112 and ISO 80601-2-56. 
NIST Traceability)
Operating Features
Pressure Ranges10m/30ft (14PSI), 30m/100ft (43PSI), 60m/200ft (85PSI), 120m/400ft (171PSI)
Overpressure Rating2X Factory Calibrated Range
Operating Temperature-20°C to 80°C (-5°F to 175°F)
Pressure Resolution %FS0.001
Expected Battery Life (Depending on Usage)Up to 5,000,000 Readings (
Up to 15 Years)
Warranty3 Years
Physical Characteristics
Wetted Material316 SS, Delrin®, Buna-N
O-Ring (Primary)Buna-N
O-Ring (Backup)Viton
Transducer316 SS Piezoresistive Silicon
Length145mm / 5.7”
Diameter22mm / 0.87”


  • barLog – recommended for barometric compensation for long term monitoring or where more than one logger is deployed within a 5 km radius

PC Communication Cable - PN# 5009
Software – PN# 5008

This cable is necessary to establish a connection between the software and the dipperLog. It connects via the USB port in your laptop or other field device, enabling you to program, launch and download data with ease. This cable can be connected either directly to the dipperLog, to the well head or to the face of the reel.

dipperLog Maintenance Kit – PN# 5024

To help get the most out of your Heron dipperLog, purchase the dipperLog Maintenance Kit (PN# 5024) to keep your dipperLogs accurate and performing at their peak for many years. The maintenance kit consists of:
1. 5x packs of Alconox® Powdered Precision Cleaner
2. 25x Replacement O-Rings
3. O-Ring Applicator Guide & Pick
4. Cleaning Cloth
5. Rubber Gloves

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