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DTL C Oil tan delta and resistivity tester

DTL C is the only device in the market which combines measurement of the dissipation factor, specific resistance and relative permittivity.

Manufactory: BAUR (Austria).

Description

At present, the DTL C is the leading standard in insulating oil testing across the world. In practice, the comprehensive analysis with DTL C impacts a precise and, hence more economic maintenance planning. The saving potential for network operators, depending on the network size, and the associated insulating oil requirement is several hundred thousand Euros per year.
Features
  • Dissipation factor measurement from 4.0 to 1 x 10-6
  • Measurement of the specific resistance with both polarities up to 100 TΩm
  • Measurement of the relative permittivity εr
  • Highly precise induction heating of the cell with accurate temperature control
  • Functional design for high efficiency, user-friendliness and safety in case of minimum space requirement
  • Test cell with protective ring electrode, three electrodes and quartz glass rings
  • Test cell according to IEC 60247
  • Calibration of the empty cell
  • Emptying of the test cell possible without disassembly (automatic/manual)
  • Direct temperature measurement by placing the sensor in the measurement electrodes
  • Fully automatic measuring sequences from 12 pre-programmed test standards and 10 user-programmable test sequences
  • Multilingual user interface
  • Ergonomic operating unit with oil-proof membrane keyboard, easy-to-read colour LCD display and integrated printer

Measurements

Range

Resolution

Dissipation factor measurement     

4 – 1×10-6

1×10-6

Relative permittivity

1 – 30

1×10-2

Specific resistance measurement     

2.5 MΩm – 100 TΩm

1×10-2 (complete range)

Temperature measurement

11 – 110 °C

0.1 °C

General information

Power supply

90 – 264 V (50/60 Hz)

Max. power consumption

500 VA

Display

colour LCD (approx. 3.5”), screen resolution 320 x 240 pixels

Software available in

German, English, French, Spanish, Italian, Portuguese, Dutch, Polish,
Russian, Chinese (Cn), Chinese (Tw), Czech, Turkish, Korean

Pre-programmed standards

IEC 60247, VDE 0380- 2, BS 5737, ASTM D924, ASTM D1169,
IEC 61620, JIS C2101, NBR 12133

Programmable test sequences

10

Interface

USB 2.0 (type B plug)
BAUR Report Manager external USB interface (type A plug)

Printer

matrix printer, 24 characters, 57 mm plain paper

Ambient temperature

-10 to +45 °C

Storage temperature

-20 to +55 °C

Relative humidity

non-condensing

Dimensions (W x H x D)

545 × 458 × 384 mm (closed)

545 × 770 × 465 mm (open)

Weight

28 kg

Degree of protection

IP 32

Test cell according to IEC 60247

Content

45 ml

Idle capacity tolerance

67.8 to 73 pF

Electric strength in air

2 000 Vrms

Oil viscosity

<150 mm2/s at 20 °C


Standard accessories:

  • DTL C
  • Dust cover
  • Hose for emptying the test cell
  • Test cell according to IEC 60247
  • Temperature sensor
  • One-way syringe 50 ml
  • Mains supply cord
  • User manual
  • Video tutorial

Optional accessories:

  • Dust cover
  • Transport case
  • Test cell according to IEC 60247 Fig. 3 with transport case
  • Paper roll for printer, 57 mm width, 30 mm
  • Ink ribbon (blue) for printer
  • TE C tester
  • BAUR Report Manager – External USB interface for measurement data management
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