company logo LEM ISOPLUSM Combined 1kV Insulation tester and True RMS Multimeter
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LEM ISOPLUSM Combined 1kV Insulation tester and True RMS Multimeter


LEM ISO-PLUSM
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 LEM ISO-PLUSM

Features:
  • Simple storage of up to 350 insulation test results to internal memory with on screen viewing or PC download
  • Internal datalogging of current, voltage and insulation (upto 1000 rdgs) for trend and intermittent fault analysis
  • Optional WinLog PC software and interface included for data analysis and reporting (also compatible with HEME power clamps)
  • Inspection of new electrical installations
  • Maintenance of electrical equipment and installations
  • Troubleshooting and repair of electrical equipment
  • Measurement of insulation quality
  • Documentation and test results
  • Detection of intermittent faults and monitoring of insulation resistance through data logging capabilities
Advantages:
  • Large dual display with bright EL backlight, 17mm character size and bargraph
  • Fast continuity test with adjustable thresholds and unique fuse protection
  • Storage of up to 350 insulation test results with on screen viewing or PC download
  • Internal datalogging of current, voltage and insulation resistance (up to 1000 readings)
Accessories supplied:
  • 2 safety measuring leads with test prods
  • 1 crocodile clip
  • 4 batteries 1.5V
  • Operating instructions
  • 1 pouch with belt loop
  • WinLog software including custom RS232 interface cable


  Description

The ISO plus has been designed specially for contractor and service technician applications. In addition to insulation testing up to 1 kV the ISO plus incorporates low resistance and continuity testing as well as leakage current measurement directly or with LEM current probes (CT’s). Selectable scaling factors provide current ranges from 200ìA to 200 A. Furthermore the ISO plus offers all the functionality of industry standard multimeters including TRMS voltage and frequency measurement in a true hand held design.

This unique combination satisfies universal applications in: Insulation measurement up to 20GΩ with test voltages of 100V, 250V, 500V and 1000V.

Low-resistance measurement according to EN 61557-4 with a shortcircuit current of >200mA, (50mA can be selected to extend battery life) for applications with non-fused earth conductor connections and equipotential bus bars.

Fast continuity testing with selectable buzzer threshold between 0.2 Ω and 50 Ω and a maximum response time of 100ms meeting all test standards.

Leakage Current measurement through an external current transformer with selectable transformer ratio from 1:1 up to 1:1000 and ranges from 200ìA to 200A.

Voltage measurement with display of AC and DC values up to 600V with an 800V overrange feature.

With additional functions including ZERO (test lead null / relative), REC (Min, Max, Avg) and LIMIT (Alarm), the ISO plus provides a complete measurement solution in one compact handheld instrument.


  Models, Options, & Accessories


Model Description List Price Sale Price
ISO-PLUSM Please call or email us for pricing and availability.
Model Accessories List Price Sale Price
WINLOG S/W 60.98.69.010.0, PC SW + CBL LH1050/60, AN2050/60 - Discontinued - no replacement


  Specifications

General
Display 1999 digit dual LCD with special symbols, digit height 17 mm, 30 segment analogue bar with over/ underflow and special display symbols, EL backlight
Working temp. -10° C ... +50° C (+14° F...+122° F )
Operating temp. 0° C ... +35° C (+32° F...+95° F )
Storage temp. -20° C ... +60° C (-4° F...+140° F )
Reference temp. +23° C ± 2° C (+73° F ± 4° F )
Temperature coefficient 0.1 x operating error/K Intrinsic Error refers to the reference temperature range
Climatic class B2 (IEC 654-1), -5° C..+45°C, 5%...85% RH, no dew
Maximum operating altitude 2000m
Protective type IP40 according to EN 60529
Safety Protection by reinforced insulation 600V CATIII pollution degree 2
Test voltage 5550 V AC, measuring circuit to enclosure
Emission IEC/EN 61326-1:1997 +A1:1998 class B
Immunity EN 61000-4-2:1995 - B,EN 61000-4-3:1996
EN 61000-4-4:1995 - B,EN 61000-4-5:1995
EN 61000-4-6:1996 - B,EN 61000-4-8:1993
Intrinsic error Refers to the reference temperature range and is guaranteed for 2 years.
Operating error Refers to the operating temperature range and is guaranteed for 2 years.
Quality system Developed, designed and manufactured according to DIN ISO 9001
External voltage Measurement inhibited for external voltage Ux >10% of UN for MΩ and >3V for R
Max. overload 800 Veff RMS or RMS x frequency < 5x104VHz
Auxiliary power 4 x 1.5 V mignon cells alkali-manganese(IEC LR6)
Battery life span Typical (no backlight) > 2000 measurements in MΩ. 100 hours continuous operation for resistance, voltage measurements and mA measurements.
Fuse 630mA quick acting 600V 10kA/32x6.3mm
Dimensions 220 x 98 x 52 mm (12 x 3.75 x 2 inches)
Weight 0.8 kg / 1.8 lbs (including batteries)
Warranty 2 years
Calibration interval 2 years recommended
MΩ - RISO Insulation Resistance
Method Voltage/current measurement as per EN 61557–2
Nominal test voltage UN = 100V, 250V, 500V, 1000V DC
Open circuit voltage U0 < 1.1 x UN
Nominal current IN ≥ 1mA DC at UN IN ≥ 2.5mA DC at 100kΩ at 250V
Short circuit current <10mA DC
R – Low Resistance Measurement
Method Voltage/current measurement as per EN 61557–4
Open circuit voltage U0 ≥ 4V
Short circuit current Ik ≥ 200mA DC up to 2Ω as pe



 

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