Megger CDAX 605 Capacitance and Dissipation Factor Tester
Get clear insulation test results with the Megger CDAX 605. Built for laboratories, production lines and on-site testing, this instrument measures capacitance and dissipation factor in electrical equipment and insulating materials. These measurements help you check electrical insulation quality and compare your test results over time.
Use it to check transformers, power cables, bushings and capacitors. Automatic measurements and direct readings help you spend less time working through calculations.
The CDAX 605 needs an external AC test source and a suitable reference capacitor or resistor. These components are selected to suit the equipment you want to test.
Request a quote for the Megger CDAX 605 today. Tell us what you need to test and your required test voltage.
Megger CDAX 605 Key Features:
- Clear results: Read measurements directly, with no calculations needed.
- Quick measurements: The default measurement time is two seconds and can be adjusted.
- Flexible testing: Measure capacitive, resistive and inductive loads with one instrument.
- Choice of references: Use different reference capacitor or resistor values without recalculating results.
- PC control: Use CDAX Control software through a graphical interface that also supports touchscreen operation.
- Easy to transport: The instrument weighs 4.4kg and includes a transport case.
Why choose the Megger CDAX 605?
✓ Use it at different stages of testing
Check insulating materials when they arrive, test equipment during production, or take measurements during installation and maintenance. These tests are non-destructive. Results support checks, comparisons and monitoring over time.
✓ Spend less time on calculations
The CDAX 605 gives direct readings of capacitance, dissipation factor, inductance and ratio. Its automatic measurement process helps simplify the work involved in taking these measurements.
It also supports calibration of CCVTs and other ratio devices for more specialised testing.
✓ Keep your results together
CDAX Control lets you enter reference values, log readings and store measurement data. The software also supports voltage, current, resistance, power factor and phase measurements.
Connect the instrument to a PC using Ethernet or USB communication. Optional LabView and C# interfaces are available for further computer integration.
What Comes with the Megger CDAX 605?
- Megger CDAX 605
- Mains Cable
- Ground Cable
- Ethernet Cable
- CDAX Control PC Software
- Transport Case
- User Manual
Measuring cables are optional. You will also need a separate AC test source and suitable reference components.
Specifications:
| Feature | Specification |
| Test frequency | 5–400Hz |
| Capacitance range | Above 1pF; upper limit depends on test current, voltage and source |
| Measurement current | 0–5A; higher currents require an external current transformer |
| Phase measurement | 0–360° |
| Capacitance, inductance and ratio accuracy | ±0.02%, under the conditions below |
| Dissipation factor accuracy | ±(0.05% of reading + 0.002%), under the conditions below |
| Maximum capacitance resolution | 0.001pF |
| Measurement time | Adjustable; default two seconds per measurement |
| Warm-up time | 15 minutes for full accuracy |
| Instrument power supply | 100–240V AC, 50/60Hz |
| Maximum power consumption | 60VA |
| Operating temperature | −20°C to +55°C |
| Storage temperature | −40°C to +70°C |
| Humidity | Below 90% RH, non-condensing |
| Measurement channels | Two |
| Dimensions | 335 × 300 × 99mm |
| Instrument weight | 4.4kg |
These accuracy figures apply at 50/60Hz, with measurement currents from 15µA to 5A. The power source must have less than 10% total harmonic distortion. Further conditions depend on the measurement range.
❓ Frequently Asked Questions (FAQ)
Q1: Does the CDAX 605 supply the test voltage?
A. It uses a separate AC power source. The test voltage must suit the ratings of the equipment, source and reference components.
Q2: What types of equipment can I test?
A. Applications include transformers, power cables, bushings, capacitors and insulating materials. The CDAX 605 measures capacitive, resistive and inductive loads, including combinations.
Q3: Does it support UST and GST testing?
A. Yes. It supports UST-R, UST-B, UST-RB, GST-GND, GSTg-R, GSTg-B and GSTg-RB configurations.
Q4: Are measuring cables included?
A. No. Measuring cables are optional. Available options include 9m and 18m cables with different connections. Tell us which connections you need when requesting a quote.
Q5: How often does it need calibration?
A. Megger recommends calibration every two years. Allow 15 minutes for the instrument to warm up before taking measurements at full accuracy.