LEM Analyst 2050 User manual

International Electrical Symbols
Caution! Refer to this manual before using the meter
Meter is protected by Reinforced or Double Insulation
CONTENTS PAGE
1INTRODUCTION................................... 2
1.1 Instrument Features............................ 3
2SPECIFICATION................................... 4
2.1 Electrical Data..................................... 4
2.2 General Data....................................... 8
3OPERATING INSTRUCTIONS.............. 10
3.1 Rotary Switch / Keypad Selections ...... 10
3.2 Voltage Measurement.......................... 11
3.3 Current Measurement.......................... 13
3.4 Watts /VA /PF /kWHr measurement.... 14
3.5 Watts 3Ø /VA /PF /kWHr measurement
15
3.6 Frequency / THD Measurement........... 16
3.7 Set Up................................................. 17
3.8 Data Logging – Quick Start ................. 17
3.9 Data Logging – Advanced.................... 18
3.10 WinLog ............................................. 20
4TECHNICAL DEFINITIONS................... 21
4.1 Measured parameters.......................... 21
4.2 Watts/VA/VAR/PF sign conventions .... 21
5SAFETY................................................ 22
6BATTERY REPLACEMENT.................. 23
7WARRANTY ......................................... 24
8OTHER PRODUCTS............................. 24
Issue 7 07/00

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1. INTRODUCTION
The advanced design of the Analyst ensures reliable and
accurate measurements under a wide range of operating
conditions. Measurement features include:
•Non-intrusive AC/DC current
•True RMS, Crest Factor and THD for complex and
distorted waveforms
•Volts / Watts / VA / PF / kWHr
•3 Phase measurements
•Screen SAVE mode
•MIN, MAX, AVE, REC Mode with time stamp
•Internal and PC Data logging*
•Multi parameter and waveform display modes
Additional Features Analyst 2060
•Live harmonics analysis and display
•Ripple measurement
•Extended memory for data logging
The Analyst conforms to the latest international directives
and standards concerning safety and electromagnetic
compatibility.
•European Low Voltage Directive 73/23/EEC and
93/68/EEC
•European EMC Directive 89/336/EEC and 93/68/EEC
Safety Standards
IEC 1010-1: 1992-09 Safety requirements for electrical
equipment for measurement, control and laboratory use.
Part 2-032: 1994-12 Particular requirements for hand
held current clamps for electrical measurement and test.
Part 2-031: 1993-02 Particular requirements for hand
held probe assemblies for electrical measurement and
test.
600V Cat IV (750V cat III) Pollution degree 2
EMC Standards
RF Susceptibility and Emissions
BS EN 61326 : 1998 Electrical equipment for
measurement, control and laboratory use – EMC
requirements.
RF Immunity. Annex C. Performance criteria A
RF Emissions. Limits for Class B equipment.
FCC Part 15 Class B *Requires optional WinLog accessory

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1.1 Instrument Features
The main operating features of the instrument are as
follows. See Fig. 1.
(1) Clamp-on jaws for current measurement
(2) Jaw opening lever
(3) Rotary switch for function selection
(4) Dot matrix LCD
(5) Screen cursor control
(6) REC mode. Time stamped MIN, MAX readings
(7) Backlight
(8) Oscilloscope / Harmonics mode
(9) HOLD and SELECT
(10) ZERO. Amps Zero
(11) SAVE. Screen save mode
(12) Numeric display mode
(13) and (14) Test lead input terminals
(15) Digital output
Fig. 1
Instrument Features
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5
6
7
8
13
14
15
12
11
10
9
3
4
1

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2. SPECIFICATION
2.1 Electrical data
(All accuracies stated at 23°C ± 1°C)
2.1.1 Current measurement
(DC, DCRMS, ACRMS)
Measuring range................... 0 - 2000A DC or AC pk
Autorange facility.................. 40A / 400A / 2000A
Resolution ............................ 10mA in 40A range
100mA in 400A range
1A in 2000A range
Accuracy
RMS and DC
I > 10A .......................... ± 1.5% rdg ± 5 dgts
I < 10A .......................... ± 0.2A
AVE
I > 10A .......................... ± 3% rdg ± 5 dgts
I < 10A .......................... ± 0.5A
Pk I > 10A .......................... ± 5% rdg ± 5 dgts
I < 10A .......................... ± 0.5A
AHrI > 10AHr....................... ± 2% rdg ± 5 dgts
I < 10AHr....................... ± 0.5AHr
CF (Crest Factor)
1 ≤CF < 3...................... ± 3% rdg ± 5 dgts
3 ≤CF < 5...................... ± 5% rdg ± 5 dgts
Resolution...................... 0.01
RPL (Ripple)
2% ≤RPL< 100%.......... ± 3% rdg ± 5 dgts
100% ≤RPL< 600%...... ± 5% rdg ± 5 dgts
Resolution...................... 0.1%
IDC >5A, IAC >2A
All measurements DC and 10Hz to 1kHz.
Maximum overload 10,000A or
RMS x frequency < 400,000. Amps RMS
is a true RMS measurement (AC + DC)
Harmonics
THD (Total Harmonic Distortion)
1% ≤THD < 100% ........ ± 3% rdg ± 5 dgts
100% ≤THD < 600% .... ± 5% rdg ± 5 dgts
Resolution...................... 0.1%

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DF (Distortion Factor)
1% ≤DF < 100% ........... ± 3% rdg ± 5 dgts
Resolution...................... 0.1%
H02 ≤Iharm <H13............ ± 5% rdg ± 2 dgts
H13 ≤Iharm ≤H25........... ± 10% rdg ± 2 dgts
All measurements up to 25th harmonic
Frequency range F045Hz to 65Hz
Iacrms >10A, Iharm >10% Iacrms
2.1.2 Voltage measurement
(DC, DCRMS, ACRMS)
Measuring range................... 0 - 750V DC or AC
Autorange facility .................. 4V / 40V / 400V / 750V
Resolution............................. 1mV in 4V range
10mV in 40V range
100mV in 400V range
1V in 750V range
Accuracy
RMS and DC
V > 1V .......................... ± 1% rdg ± 5 dgts
V < 1V .......................... ± 0.02V
AV V > 1V .......................... ± 3% rdg ± 5 dgts
V < 1V .......................... ± 0.03V
Pk V > 1V .......................... ± 5% rdg ± 5 dgts
V < 1V .......................... ± 0.03V
CF (Crest Factor)
1 ≤CF < 3...................... ± 3% rdg ± 5 dgts
3 ≤CF < 5...................... ± 5% rdg ± 5 dgts
Resolution...................... 0.01
RPL (Ripple)
2% ≤RPL< 100% .......... ± 3% rdg ± 5 dgts
100% ≤RPL< 600% ...... ± 5% rdg ± 5 dgts
Resolution...................... 0.1%
VDC >0.5V, VAC >0.2V
All measurements DC and 10Hz to 1kHz.
Maximum overload 1,000 V RMS
Volts RMS is a true RMS measurement (AC + DC)
Harmonics
THD (Total Harmonic Distortion)
1% ≤THD < 100%......... ± 3% rdg ± 5 dgts
100% ≤THD < 600%..... ± 5% rdg ± 5 dgts
Resolution...................... 0.1%

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DF (Distortion Factor)
1% ≤DF < 100%........... ± 3% rdg ± 5 dgts
Resolution...................... 0.1%
H02 ≤Vharm <H13.......... ± 5% rdg ± 2 dgts
H13 ≤Vharm ≤H25......... ± 10% rdg ± 2 dgts
All measurements up to 25th harmonic
Frequency range F045Hz to 65Hz
Vacrms >1V, Vharm >10% Vacrms
2.1.3 Watts measurement (Single and 3 Phase)
(DC, DCRMS, ACRMS)
Measuring range................... 0 - 1200kW DC or
850kW AC
Autoranging facility............... 4kW, 40kW, 400kW,
1200kW
Resolution ............................ 1W in 4kW
10W in 40kW
100W in 400kW
1kW in 1200kW
Accuracy .............................. 2.5% rdg ± 5 dgts
W1Ø < 2kW....... ± 0.08 kW
W3Ø < 4kW....... ± 0.25kW
2.1.4 VA measurement (Single and 3 Phase)
(DC, DCRMS, ACRMS)
Measuring range................... 0 -1200kVA DC or
850kVA AC
Autorange facility.................. 4kVA, 40kVA, 400kVA,
1200kVA
Resolution ............................ 1VA in 4kVA
10VA in 40kVA
100VA in 400kVA
1kVA in 1200Kva
Accuracy VA > 2kVA.......... 2.5% rdg ± 5 dgts
VA < 2kVA..........± 0.08kVA
2.1.5 VAR Measurement (Single and 3 Phase)
Measuring range................... 0 - 850kVAR
Autorange facility.................. 4kVAR, 40kVAR,
400kVAR, 850kVAR
Resolution ............................ 1VAR in 4kVAR
10VAR in 40kVAR
100VAR in 400kVAR
1kVAR in 850kVAR
Accuracy VAR > 4kVAR... ± 2.5% rdg ± 5 dgts
VAR < 4kVAR... ± 0.25kVAR
Power Factor range.............. 0.3 < PF < 0.99
2.1.6 Power Factor (Single and 3 Phase)
Measuring range 0.3 cap … 1.0 … 0.3 ind
(72.5° cap ... 0° ... 72.5° ind)

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Resolution............................. 0.01
Accuracy............................... ± 3°

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2.1.7 Kilowatt Hour (kWHr)
Measuring range................... 40,000kWHr
Autorange facility.................. 4kWHr, 40kWHr,
400kWHr, 4,000kWHr,
40,000kWHr
Resolution ............................ 1WHr in 4kWHr
10WHr in 40kWHr
100WHr in 400kWHr
1kWHr in 4,000kWHr
10kWHr in 40,000kWHr
Accuracy kWHr > 2kWHr.... ± 3% ± 5 dgts
kWHr < 2kWHr.... ± 0.08kWHr
All Watts /VA /VAR /PF measurements
Frequency range .................. DC and 10Hz to 1kHz
Current range....................... 10A to 1400A RMS
Voltage range ....................... 1V to 600V RMS
Maximum input..................... 600V RMS / 2000A Pk
Maximum overload................ 1000V RMS / 10,000A
2.1.8 Frequency measurement
(From Current or Voltage sources)
Measuring range................... 10Hz to 1kHz
Resolution ............................ 0.1Hz
Accuracy 40 - 70Hz............. ± 0.5% rdg
10 - 1000Hz......... ± 1% rdg
Current Range...................... 10A to 1400A RMS
Voltage Range...................... 1V to 600V RMS
2.1.9 Scope Function
2.1.9.1 Current measurement
Ranges................................. 10A/20A/40A/100A
200A/400A/1000A/2000A
Resolution ............................ 1A in 40A
10A in 400A
50A in 2000A
Accuracy .............................. ± 3% rdg ± 1 pixel
Maximum overload................ 10,000A

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2.1.9.2 Voltage measurement
Ranges................................. 4V/10V/20V/40V/100V
200V/400V/1000V
Resolution............................. 100mV in 4V
1V in 40V
10V in 400V
31.25V in 1000V
Accuracy............................... ± 2% rdg ± 1 pixel
Maximum overload................ 1000V RMS
Frequency range................... DC and 10Hz to 600Hz
Time base............................. 2ms, 4ms, 10ms,
50ms/div
Refresh rate.......................... 0.5 seconds
Maximum sampling rate........ 9.6kHz
50ms/div
2.1.10 Digital output
RS-232 Interface to a PC
9600 baud 1 start bit 8 data bits 1 stop bit
Requires WinLog interface and software
2.2 General Data
2.2.1 Display
Backlit dot matrix LCD 160 x 128.
2.2.2 Power Supply
Battery type 1.5V Alkaline AA MN 1500 or IEC LR6 x 6
Battery life typically:
24 hours (backlight off)
12 hours (backlight on)

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2.2.3 Environmental
FOR INDOOR USE ONLY
Reference conditions. All accuracies stated at
23°C ± 1°C
Operating temperature 0°C to 50°C (32°F to 122°F)
Temperature coeff. of current ≤±0.15% of rdg per °C
Temperature coeff. of voltage ≤±0.15% of rdg per °C
Maximum relative humidity 80% for temperatures up to
31°C (87°F) decreasing linearly to 50% relative humidity
at 40°C (104°F)
Maximum operating altitude 2000m
2.2.4 Mechanical
Dimensions ....................... Length 300mm (12 inches)
Width 98mm (3.75 inches)
Depth 52mm (2 inches)
Weight inc. batteries.......... 820g / 1.8lbs.
Case material .................... Bayblend T85
Jaw opening ...................... 60mm
Jaw capacity...................... 58mm diameter
Accessories....................... Voltage probes
Crocodile Clips
Carrying case
Operator’s manual
Cleaning............................ The unit can be cleaned
with an Isopropanol
impregnated cloth.
Do not use abrasives or
other solvents.
2.2.5 Power-up
At power-up the following screen is displayed for 5
seconds indicating the battery status. The remaining
battery lifetime is displayed, with and without the backlight.
When the display changes to the digital mode, the
instrument is ready for use.