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LEM LH41 Operating Instructions Manual

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International Electrical Symbols
Caution! Refer to this manual before using the meter
Meter is protected by Reinforced or Double Insulation
CONTENTS
1 INTRODUCTION .....................................
2 SPECIFICATIONS ..................................
2.1 Electrical Data ......................................
2.2 General Data ........................................
3 OPERATING INSTRUCTIONS ...............
3.1 Switch On .............................................
3.2 Zero Adjustment ...................................
3.3 Current Measurement ...........................
3.4 Data Hold...............................................
3.5 Auto Power Off ......................................
4 SAFETY ..................................................
5 BATTERY REPLACEMENT ...................
6 WARRANTY............................................
7 OTHER PRODUCTS...............................
Issue 1. 05/99
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Summary of Contents for LEM LH41

  • Page 1 International Electrical Symbols Caution! Refer to this manual before using the meter Meter is protected by Reinforced or Double Insulation CONTENTS Page 1 INTRODUCTION ........2 SPECIFICATIONS ........2.1 Electrical Data ........2.2 General Data ........3 OPERATING INSTRUCTIONS ....3.1 Switch On ..........

  • Page 2: Introduction

    1. INTRODUCTION The LH41 current clamp meter has been designed for reliable and accurate non-intrusive measurement of DC and AC currents using advanced Hall Effect technology. Measurement features include: • Non - intrusive AC and DC current measurement • 1mA resolution •...

  • Page 3: Specifications

    2. SPECIFICATIONS 2.1 Electrical Data (All accuracies stated at 23°C ± 1°C) LH41 Measuring Range....0 - 40 A DC or AC pk Autoranging......4A / 40A Resolution......1 mA in 4 A range 10 mA in 40 A range Accuracy Basic Accuracy ....

  • Page 4: Operating Instructions

    3. OPERATING INSTRUCTIONS Refer to Fig. 1 for the main operating features of the meter. 3.1 Switch On Move the switch from the OFF / HOLD position to either DC or AC to select the required mode of operation. 3.2 Zero Adjustment When in DC mode the display zero may change due to thermal shifts and other environmental conditions.

  • Page 5: Safety

    4. SAFETY This product conforms to the latest directives concerning safety and electromagnetic compatibility. • European Low Voltage Directives 73/23/EEC and 93/68/EEC • European EMC Directives 89/336/EEC and 93/68/EEC Safety Standards BSEN61010-1: 1993. General Requirements. Safety requirements for electrical equipment for measurement, control and laboratory use.

  • Page 6: Battery Replacement

    Fit only Type 9 V PP3, Alkaline (MN1604 ). 6. WARRANTY Your LEM HEME clamp on current meter is guaranteed for one year from the date of purchase against defective material or workmanship. If the meter fails...

  • Page 7: Other Products

    7.OTHER PRODUCTS The LEM group offer a wide range of non-invasive transducers, probes and instrumentation for the measurement and analysis of current, voltage and power.

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