Description
Fluke 1550C Insulation Resistance Tester (5kV)
Ideal for testing various types of high voltage equipment such as switchgear, motors, generators and cables, this Fluke 1550C Insulation Resistance Tester (5kV) is used for accurately measuring insulation resistance up to 1TΩ with selectable testing voltages of 250V, 500V, 1000V, 2500V and 5000V.
This tester can also be used to carry out leakage current measurements from 1nA to 2mA and capactiance measurements from 0.01μF to 15μF. The tester can automatically calculate Dielectric Absorption (DAR) and Polarisation Index (PI) with no additional setup needed.
One of the most useful features of the Fluke 1550C is actually its portability – many other similar testers are big and bulky, while the Fluke 1550C is handheld, portable and ideal for use out in the field. It’s also uniquely designed for a comfortable grip and includes a large-size LCD screen that makes it easy to read all testing results.
The Fluke 1550C also includes built-in memory with 99 memory locations, allowing testing records to be stored with unique, user defined labels for easy recall after testing is finished. Testing results are shown on the large-size LCD screen on the front of the tester which includes both digital and analogue display for comprehensive result analysis.
Other functions of the Fluke 1550C include a guard system for filtering out the effects of surface leakage current, a ramp function and a voltage warning when line voltage is present.
Fluke 1550C Technical Specifications
| Insulation resistance measurement | ||
| Test voltage (dc) | Range (dc) | Accuracy (± reading) |
| 250 V | < 200 kΩ 200 kΩ to 5 GΩ 5 GΩ to 50 GΩ > 50 GΩ | unspecified 5 % 20 % unspecified |
| 500 V | 200 kΩ 200 kΩ to 10 GΩ 10 GΩ to 100 GΩ > 100 GΩ | unspecified 5 % 20 % unspecified |
| 1000 V | < 200 kΩ 200 kΩ to 20 GΩ 20 GΩ to 200 GΩ > 200 GΩ | unspecified 5 % 20 % unspecified |
| 2500 V | < 200 kΩ 200 kΩ to 50 GΩ 50 GΩ to 500 GΩ > 500 GΩ | unspecified 5 % 20 % unspecified |
| 5000 V | < 200 kΩ 200 kΩ to 100 GΩ 100 GΩ to 1 TΩ > 1 TΩ | unspecified 5 % 20 % unspecified |
| 10000 V (1555 only) | < 200 kΩ 200 kΩ to 200 GΩ 10 GΩ to 2 TΩ > 2 TΩ | unspecified 5 % 20 % unspecified |
| Bar graph range | 0 to 1 TΩ | |
| Insulation test voltage accuracy | -0 %, 10 % at 1 mA load current | |
| Induced ac mains current rejection | 2 mA maximum | |
| Charging rate for capacitive load | 5 seconds per μF | |
| Discharge rate for capacitive load | 1.5 s/μF | |
| Leakage current measurement | Range: 1 nA to 2 mA | Accuracy: ± (5 % 2 nA) |
| Capacitance measurement | Range: 0.01 uF to 15.00 μF | Accuracy: ± (15 % rdg 0.03 μF) |
| Timer | Range: 0 to 99 minutes | Resolution Accuracy: Setting: 1 minute Indication: 1 second |
| Live circuit warning | Warning Range: 30 V to 660 V ac/dc, 50/60 Hz | Voltage Accuracy: ± (15 % 2 V) |
| General specifications | |
| Display | 75 mm x 105 mm |
| Power | 12 V lead-acid rechargeable battery, Yuasa NP2.8-12 |
| Charger Input (AC) | Charger Input (AC) 85 V to 250 V ac 50/60 HZ 20 VA |
| Dimensions | 170 mm x 242 mm x 330 mm (6.7 in x 9.5 in x 13 in) |
| Weight | 3.6 kg (7.94 lb) |
| Temperature (operating) | -20 ºC to 50 ºC (-4 ºF to 122 ºF) |
| Temperature (storage) | -20 ºC to 65 ºC (-4 ºF to 149 ºF) |
| Humidity | 80 % to 31 ºC decreasing linearly to 50 % at 50 ºC |
| Altitude | 2000 m |
| Enclosure sealing | IP40 |
| Input overload protection | 1000 V ac |
| Electromagnetic compatibility | EN 61326 |
| Certifications |    |
| Safety compliance | CAT III 1000 V, CAT IV 600 V |
| Pollution degree | 2 |
