The Fluke 1550 MegOhmMeter provides insulation resistance testing up to 1 TW, with four output voltages
The Fluke 1550 MegOhmMeter is a rugged, easy-to-use, multi-function insulation resistance tester that includes everything electrical technicians need to do their jobs quickly and easily. The digital megohmmeter is capable of testing switchgear, motors, generators, and cables at up to 5000 V dc and can be used for a wide range of tests — from simple spot checks to timed tests and breakdown tests. Measurement storage and PC interface software make it ideal for preventive maintenance.
The Fluke 1550 MegOhmMeter provides insulation resistance testing up to 1 TW, with four output voltages: 500 V, 1000 V, 2500 V, 5000 V. Its live voltage indicator alerts notify the user that voltage is present and gives the voltage reading up to 600 V ac or dc. The 1550 includes features you expect on higher-end testers, including a ramp function (0-5000 V dc) for breakdown testing, a timer for dielectric absorption, plus the ability to conduct current leakage tests and cable or insulation capacitance tests. Its 99 memory locations store all measurement parameters, which can then be downloaded to a Windows¡°-based computer using the Quicklink 1550 software and optical interface cable that come with the meter.
Easy to use with a large, fast-responding analog/digital display, the Fluke 1550 shows measurement changes graphically with easy-to-read analog bar graphs as well as digital measurements. The last-reading memory display is ideal for insulation resistance and lo-ohms.
The Fluke 1550 is powered by a high-capacity, rechargeable, 12-V battery that provides enough energy for up to 2,500 tests.
Features
Test voltages of 500 V, 1000 V, 2500 V, 5000 V
Measures up to 1 TW
Warning voltage alerts the user that voltage is present and gives the voltage reading up to 600 V ac or dc
Guard system eliminates the effect of surface leakage current on high-resistance measurements
Cable or insulation capacitance
Leakage current
Ramp function (0-5000 V dc) for breakdown testing
Timer for dielectric absorption and polarization index tests
99 memory locations store all measurement parameters
Includes Quicklink 1550 Software and Optical Interface cable for downloading to a Windows PC
All stated accuracy tolerances apply to the temperature range 0 ¡ÆC to 35 ¡ÆC. For operating temperatures between –20 ¡ÆC to 0 ¡ÆC, these tolerances double.
Included Accessories
Test leads
5000 V-rated probes
Alligator clips
Interface adapter and cable
Quicklink 1550 PC software
DC (Car) charging adapter
Line cord
Soft carrying case with waterproof bottom
SPECIFICATIONS
Insulation Resistance Measurement
Test Voltage (dc)
Range
Accuracy (+ reading)
500 V
200 k¥Ø to 10 G¥Ø
5 %
10 G¥Ø to 100 G¥Ø
20 %
1000 V
200 k¥Ø to 20 G¥Ø
5 %
20 G¥Ø to 200 G¥Ø
20 %
2500 V
200 k¥Ø to 50 G¥Ø
5 %
50 G¥Ø to 500 G¥Ø
20 %
5000 V
200 k¥Ø to 100 G¥Ø
5 %
100 G¥Ø to 1 T¥Ø
20 %
Short circuit current
Greater than 1 ma. and less than 2 ma.
Bar graph range
0 to 1 T¥Ø
Insulation test voltage accuracy
-0 % to 10% at 1 mA load current
Induced ac mains current rejection
2 mA maximum
Charging rate for capacitive load
5 seconds per ¥ìF
Range
Accuracy
Leakage current
1 nA to 2 mA
¡¾ (5 % + 2 nA)
Capacitance measurement
0.01 uF to 15.00 uF
¡¾ (15 % rdg + 0.03 uF)
Live circuit indicator
30 V to 600 V ac/dc, 50/60 Hz
¡¾ (5 % + 2 V)
Mechanical Specifications
Dimensions (L x W x H)
170 mm x 242 mm x 330 mm (6.7 in x 9.5 in x 13.0 in)
Weight (with battery)
4 kg (8.8 lbs)
Power
Battery type
12 V, lead-acid, rechargeable
Charger input (ac)
85 to 250 V ac 50/60 Hz 50 VA
Charger input (dc car adapter)
10 to 15 V dc, 30 VA
Battery life (typical)
Test Voltage
Number of Tests
500 V
2500
1 kV
3600
2.5 kV
3200
5 kV
1500
Note: At higher temperatures, the battery requires more frequent charging.
Environmental Specifications
Operating temperature
-20 ¡ÆC to 40 ¡ÆC
Storage temperature
-20 ¡ÆC to 65 ¡ÆC
Relative humidity
80 % to 31 ¡ÆC decreasing linearly to 50 % at 40 ¡ÆC
Operating altitude
0 to 2000 meters
Enclosure sealing
IP-40
Shock, vibration
MIL-PRF-28800F, CLASS II
EMI immunity
EN 61326
Safety
EN 61010-1, CAT III, 600 V, EN61557, PARTS 1 & 2
Input overload protection
600 V ac continuous
Software Specifications
Quicklink 1550 Software requires a PC or 100% compatible running Windows¢ç 95, 98, Me, 2000, NT4.0