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Dielectric Oil Tester

The BA75 has a maximum output of 75kV, more than sufficient to meet almost all testing standards worldwide. This rugged, portable instrument is the smallest and lightest unit on the market with an integrated battery and carry handle that makes it ideally suited for the field environment.

With a color, ultra-bright sunlight viewable LCD display, this unit is equally at home in the testing laboratory as it is in the field. The intuitive, menu driven display, with built-in international testing sequences, allows the user to simply start a test cycle and the unit takes over and completes the test. Results are sent to an integrated printer for an immediate hardcopy. In addition a PDF file can be created directly by the unit and stored onto a standard memory stick.

The supplied BA Control center software allows for the control of the instrument and for downloading of the test results via a wireless link to a PC. All instruments come complete with integrated battery, printer, carry handle, USB memory stick, Mains cable, Calibration sheet, Operation manual, BA Control Center software, and extra paper roll for printer.

Note: Various Test cells are available – see optional items.


  • Output voltage: 0-75kVrms
  • Easy to use, intuitive, menu driven display
  • Ultra bright, color LCD
  • Rugged, compact, light-weight design
  • Weighs only 22kg/48.5lbs (incl. Battery)
  • Scope display of voltage breakdown
  • Direct, precise voltage and current measurement
  • Ultrafast, low energy switch-off ( < 5 µs)
  • Viewable, screened HV test chamber
  • Automatic PDF generation of results
  • Compatible with mineral, silicon, and ester based oils
  • Pre-installed fully automatic standards
  • User-programmable test sequences.
  • No nuisance error messages
  • Adjustable gap spacing mechanism on optional test cells.
  • Moisture impervious test cell construction
  • Low volume test cell available where applicable.
  • Integrated printer & temperature measurement
  • EMC shielding
  • Multiple safety interlocks
  • ATA approved transport / cases and test cells available – see options.

Standard Accessories

  • Integrated Battery
  • Integrated Printer
  • Carrying Handle
  • USB Flash Drive / Memory Stick
  • AC Mains Cable
  • Extra Paper Roll
  • Operational Manual
  • Calibration Certificate
  • Bluetooth Communication Module
  • BA Control Center Software

Optional Items

  • 800 002 - ASTM877 Test Cell complete with lid & 2.54mm/0.1" spacer gauge (0.4L)
  • 800 003 - ASTM877 Reduced Volume Test Cell with 2.54mm/0.1" spacer gauge (0.1L)
  • 800 004 - ASTM1816 Test Cell complete with integrated stirrer lid and 1mm/2mm spacer gauges (0.4L)
  • 800 008 - IEC 60 Fig I Test Cell complete with lid, magnetic stirrer, lifting stick & 2.5mm spacer gauge (0.4L)
  • 800 009 - IEC 60 Fig II Test Cell complete with lid, magnetic stirrer, lifting stick & 2.5mm spacer gauge (0.4L)
  • 800 005 - ATA Approved Transport Case for BA75 instrument
  • 800 006 - ATA Approved Transport Case for two BA75 test cells

Technical Specifications

Ordering Information
800 001
Communication Interface
USB Memory stick, Bluetooth®
Temperature Resolution
1°C (1.8°F)
Preprogrammed Test Standards:
ASTM 1816-04-1
ASTM 1816-04-2
ASTM 877-02A
ASTM 977-02B
ÖVE EN 60156
BS EN 60156
NF EN 60156
UNE EN 60156
SABS EN 60156
PA SEV EN 60156
NEN 101 56
IEC 60156 / 95
VDE 370-5 / 96
AS 1767:2:1
Single measurement
Other standards possible
Customer Specific User Programmable Stds
Almost Unlimited
PC Software Control Center
Power Supply / Input
85 V – 264 V (47 Hz – 63 Hz) and 12V DC external power supply
Power Supply Consumption
1x12V / 7.2Ah
Output Voltage

0-75kV rms
Voltage Measurement Accuracy

±1 kV over full range
Voltage Resolution Displayed

Voltage Rate of Rise / Slew Rate

0.5 – 10 kV/s
Trip Time On Discharge Detection

< 5 µs
Temperature Measurement Range
32°F – 212°F
0°C – 100°C

Dot Matrix Ink Printer
Printer Paper

1.75 in / 44.5mm

23°F to 113°F (-5°C to +45°C)
-4°F to 140°F (-20°C to +60°C)
Relative Humidity (operating)
< 90%, non-condensing

16.9 x 11 x 9.9 in
430 x 280 x 250 mm
49 lbs / 22 kg

Note: Due to continuous development, the information may change without notice.

Tan Delta
Partial Discharge