Fluke 345 Manuel d'instructions

Technical DataTechnical Data

•AC/DC current: Clamp-on measurement of ac current up to 1400 A

rms and dc current up to 2000 A without breaking the circuit

•Highest safety rating: 600 V CAT IV rated for use at

the service entrance

•Accurate in noisy environments: Even with distorted

waveforms present on electronic loads with low-pass ﬁlter

•Data logging: Identify intermittent faults by

logging any power parameters for minutes or

months, including harmonics

•Verify batteries: Direct measurement of dc ripple

(%) for battery and dc systems

•Troubleshoot harmonics: Analyze and log

harmonics digitally or graphically

•Inrush current: Capture and analyze nuisance tripping,

from 3 seconds to 300 seconds

•Easy to use: Easily conﬁrm instrument setup with

large backlit color display of waveforms and trends

•3-Phase power: Built in capability for balanced loads

•View graphs and generate reports: With included

Power Log software

Fluke 345

Power Quality Clamp Meter

With a bright color display to analyze the harmonic

spectrum, a low-pass ﬁlter to remove high frequency noise,

and a high EMC immunity design, the Fluke 345 is ideal for

measurements on switching loads such as variable frequency

drives, electronic lighting and UPS systems. Additionally, the

Hall Effect measurement system makes measurement of dc

current possible without the need to break the circuit, and

the internal memory enables long-term logging for analysis of

trends or intermittent problems.

The ideal meter for commissioning and

troubleshooting modern electrical loads

N10140

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2 Fluke Corporation Fluke 345 Power Quality Clamp Meter

Log measured parameters

All voltage, current, power, and harmonic measurements

can be logged for minutes, hours, or months. Measurement

averaging periods from 1 second to 15 minutes can be selected

depending on the application.

Measured parameters can be logged into three separate

recording memory areas. If longer recordings are required, the

three areas may be combined into one. Stored measurements

can be recalled and displayed on-screen in normal screen

format or downloaded using the Power Log software package.

Applications

Set up and troubleshoot variable frequency drives

and UPS systems - Verify correct operation by

measuring key parameters

Harmonics measurements - Uncover harmonic issues

that can damage or disrupt critical equipment

Inrush capture - Check start-up current where spurious

resets or nuisance circuit breaker tripping occurs

Load studies - Verify electrical system capacity

before adding loads

Image Placeholder

(application photo related to VFDs)

Harmonics measurements—view key

harmonic factors such as distortion factor

and total harmonic distortion, as well

as individual harmonics up to the 30th

harmonic.

Log parameters over time to track

down intermittent faults.

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3 Fluke Corporation Fluke 345 Power Quality Clamp Meter

Flexible and easy to use

The 345 measures a wide range of electrical parameters and

can be used for many applications in today’s modern electrical

environment. Measuring mode is selected by a simple turn of

the rotary switch and the large color display presents data in

a clear, easy-to-understand way.

By default the display will show the most common

measurements, in very large format. If more detailed views

are required they are available with the press

of a single key (up to six measurements at once).

Equipment performance

measurement - power consumed

by single- and three-phase

balanced loads.

View waveforms for equipment

checking and setup.

View recorded data

in simple graphs

and tables.

Easily customize

the report.

Create professional

reports.

Analysis and reporting software

Designed to quickly view recorded data, the

included Power Log software displays all recorded

parameters on interactive trends. Generate

professional reports with the ‘Report Writer’

function, or copy and paste images into report

document manually.

•Easy-to-use tabbed window format allows

quick data evaluation.

•One-step download and display capability

•Waveform, harmonics, and trend download

•Simple data export to other applications

Inrush current

Diagnose equipment start-ups with the inrush current mode.

A current trigger level is set prior to recording. Once the level

has been exceeded, the meter will begin capture. Recordings

from 3 seconds to 300 seconds may be captured, and up to

1000 inrush events may be stored in the instruments memory.

Screen captures and data logging

Any measurement can be stored in memory for later viewing,

or downloaded to a PC. Simply press ‘SAVE’ to capture the

active screen to memory – up to 50 screen shots can be

saved for quick and simple documentation. Additionally, over

150,000 individual measurements can be logged for later

review on the display or on a PC using Power Log software.

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4 Fluke Corporation Fluke 345 Power Quality Clamp Meter

Display

Color transmissive LCD 320 x 240 pixels (70 mm diagonal) with 2 level backlight

Power supply

Battery type 1.5 V Alkaline AA MN 1500 or IEC LR6 x 6

Battery life typically > 10 hours (backlight on full)

> 12 hours (backlight reduced)

Battery Eliminator BE345

Input 110 V/230 V, 50/60 Hz

Output 15 V dc, 300 mA

Ambient conditions (For indoor use only)

Reference conditions All accuracies stated at 23 °C ± 1 °C (73.4 °F ± 1.8 °F)

Operating temperature 0 °C to 50 °C (32 °F to 122 °F)

Temperature coefﬁcient of current ≤± 0.15 % of rdg per °C

Temperature coefﬁcient 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 2000 m

Electrical safety

Safety IEC 61010-1 600 V CAT IV, double or reinforced insulation, pollution degree 2

Protection IP40; EN60529

Maximum safe working voltages

Current measurement 600 V ac rms or dc between uninsulated conductor and ground

Voltage measurement 600 V ac rms or dc between either input terminal and ground, or 825 V between energized

phase voltages (delta power conﬁg.)

EMC

Emission IEC/EN 61326-1:1997 class B

Immunity IEC/EN 61326-1:1997

Mechanical

Dimensions (length x width x depth) 300 mm x 98 mm x 52 mm (12 in x 3.75 in x 2 in)

Weight including batteries 820 g/1.8 lb

Jaw opening 60 mm

Jaw capacity 58 mm diameter

Cleaning The unit can be cleaned with an Isopropanol impregnated cloth. Do not use abrasives or

other solvents.

General Specifications

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5 Fluke Corporation Fluke 345 Power Quality Clamp Meter

Electrical data

All accuracies stated at 23 °C ± 1 °C (73.4 °F ± 1.8 °F). See Ambient conditions speciﬁcations for temperature coefﬁcients.

Current measurement (dc, dc rms, ac rms)

Measuring range 0 to 2000 A dc or 1400 ac rms

Autorange facility 40 A/400 A/2000 A

Resolution 10 mA in 40 A range

100 mA in 400 A range

1 A in 2000 A range

Accuracy

DC and dc rms

I >10 A ± 1.5 % rdg ± 5 digits

I <10 A ± 0.2 A

AVG

I >10 A ± 3 % rdg ± 5 digits

I <10 A ± 0.5 A

I >10 A ± 5 % rdg ± 5 digits

I <10 A ± 0.5 A

AHr

I >10 A ± 2 % rdg ± 5 digits

I <10 A ± 0.5 AHr

CF (Crest Factor)

1.1≤CF <3 ± 3 % rdg ± 5 digits

3 ≤CF <5 ± 5 % rdg ± 5 digits

Resolution 0.01

RPL (Ripple)

2 % ≤RPL <100 % ± 3 % rdg ± 5 digits

100 % ≤RPL <600 % ± 5 % rdg ± 5 digits

Resolution 0.1 %

Idc >5 A, Iac >2 A

All measurements dc and 15 Hz to 1 kHz

Maximum overload 10,000 A or rms x frequency <400,000

Amps rms is a true-rms measurement (ac + dc)

Specifications

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6 Fluke Corporation Fluke 345 Power Quality Clamp Meter

Voltage measurement (dc, dc rms, ac rms)

Measuring range 0 to 825 V dc or ac rms

Autorange facility 4 V/40 V/400 V/750 V

Resolution 1 mV in 4 V range

10 mV in 40 V range

100 mV in 400 V range

1 V in 750 V range

Accuracy

DC and dc rms

V >1 V ± 1 % rdg ± 5 digits

V <1 V ± 0.02 V

AVG

V >1 V ± 3 % rdg ± 5 digits

V <1 V 0.03 V

V >1 V ± 5 % rdg ± 5 digits

V <1 V ± 0.03 V

CF (Crest Factor)

1.1 ≤CF <3 ± 3 % rdg ± 5 digits

3 ≤CF <5 ± 5 % rdg ± 5 digits

Resolution 0.01

RPL (Ripple)

2 % ≤RPL <100 % ± 3 % rdg ± 5 digits

100 % ≤RPL <600 % ± 5 % rdg ± 5 digits

Resolution 0.1 %

Vdc >0.5 V, Vac >0.2 V

All measurements dc and 15 Hz to 1 kHz

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 digits

100 % ≤THD <600 % ± 5 % rdg ± 5 digits

Resolution 0.1 %

DF (Distortion Factor)

1 % ≤DF <100 % ± 3 % rdg ± 5 digits

Resolution 0.1 %

H02 ≤Vharm <H13 ± 5 % rdg ± 2 digits

H13 ≤Vharm ≤H30 ± 10 % rdg ± 2 digits

All measurements up to 30th harmonic (40th harmonic for 15 Hz to 22 Hz)

Frequency range F015 Hz to 22 Hz and 45 Hz to 65 Hz

Vacrms >1V

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7 Fluke Corporation Fluke 345 Power Quality Clamp Meter

Watts measurement (single- and three-phase) (dc, dc rms, ac rms)

Measuring range 0 to 1650 kW dc or 1200 kW ac

Autoranging facility 4 kW, 40 kW, 400 kW, 1650 kW ac

Resolution 1 W in 4 kW

10 W in 40 kW

100 W in 400 kW

1 kW in 1200 kW

Accuracy 2.5 % rdg ± 5 digits

W1Ø <2 kW ± 0.08 kW

W3Ø <4 kW ± 0.25 kW

VA measurement (single- and three-phase) (dc, dc rms, ac rms)

Measuring range 0 to 1650 kVA dc or 1200 kVA ac

Autorange facility 4 kVA, 40 kVA, 400 kVA, 1650 kVA

Resolution 1 VA in 4 kVA

10 VA in 40 kVA

100 VA in 400 kVA

1 kVA in 1200 kVA

Accuracy

VA >2 kVA 2.5 % rdg ± 5 digits

VA <2 kVA ± 0.08 kVA

VAR measurement (single- and three-phase)

Measuring range 0 to 1250 kVAR

Autorange facility 4 kVAR, 40 kVAR, 400 kVAR, 1200 kVAR

Resolution 1 VAR in 4 kVAR

10 VAR in 40 kVAR

100 VAR in 400 kVAR

1 kVAR in 1200 kVAR

Accuracy

VAR >4 kVAR ± 2.5 % rdg ± 5 digits

VAR <4 kVAR ± 0.25 kVAR

Power factor range 0.3 <PF <0.99

Power factor (single- and three-phase)

Power factor

Measuring range 0.3 capacitive and 1.0 to 0.3 inductive (72.5° capacitive and 0° to 72.5° inductive)

Resolution 0.001

Accuracy ± 3°

Frequency range 15 Hz to 1 kHz

Displacement power factor

Measuring range 0.3 capacitive and 1.0 to 0.3 inductive (72.5° capacitive and 0° to 72.5° inductive)

Resolution 0.001

Accuracy ± 3°

Frequency range 15 Hz to 22 Hz and 45 Hz to 65 Hz

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8 Fluke Corporation Fluke 345 Power Quality Clamp Meter

Kilowatt hour (kWHr)

Measuring range 40,000 kWHr

Autorange facility 1 kWHr, 40 kWHr, 400 kWHr, 4,000 kWHr, 40,000 kWHr

Resolution 1 WHr in 4 kWHr

10 WHr in 40 kWHr

100 WHr in 400 kWHr

1 kWHr in 4,000 kWHr

10 kWHr in 40,000 kWHr

Accuracy

kWHr >2 kWHr ± 3 % ± 5 digits

kWHr <2 kWHr ± 0.08 kWHr

All Watts /VA /VAR /PF measurements

Frequency range DC and 15 Hz to 1 kHz

Current range 10 A to 1400 A rms

Voltage range 1 V to 825 V rms

Maximum input 825 V rms/1400 A rms

Maximum overload 1000 V rms/10,000 A

Frequency measurement (from current or voltage sources)

Measuring range 15 Hz to 1 kHz

Resolution 0.1 Hz

Accuracy 15 to 22 Hz ± 0.5 % rdg

40 Hz to 70 Hz ± 0.5 % rdg

15 Hz to 1000 Hz ± 1% rdg

Current range 10 A to 1400 A rms

Voltage range 1 V to 825 V rms

Scope function

Current measurement

Ranges 10 A/20 A/40 A/100 A/200 A/400 A/1000 A/2000 A

Resolution 1 A in 40 A

10 A in 400 A

50 A in 2000 A

Accuracy ± 3 % rdg ± 1 pixel

Maximum overload 10,000 A

Voltage measurement

Ranges 4 V/10 V/20 V/40 V/100 V/200 V/400 V/1000 V

Resolution 100 mV in 4 V

1 V in 40 V

10 V in 400 V

31.25 V in 1000 V

Accuracy ± 2 % rdg ± 1 pixel

Maximum overload 1000 V rms

Frequency range DC and 15 Hz to 600 Hz

Time base 2.5 ms, 5 ms, 10 ms, 25 ms, 50 ms/div

Refresh rate 0.5 seconds

Maximum sampling rate 15.625 kHz

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9 Fluke Corporation Fluke 345 Power Quality Clamp Meter

Inrush current function

Ranges 40 A, 400 A, and 2000 A

Resolution 10 mA in 40 A range

100 mA in 400 A range

1 A in 2000 A range

Accuracy

I >10 A ± 5 % rdg ± 1 pixel

I <10 A ± 0.5 A

All measurements dc and 15 Hz to 1 kHz

Maximum overload Maximum overload 10,000 A or rms x frequency <400,000

Amps rms is a true-rms measurement (ac + dc)

Capture time 1 s, 3 s, 10 s, 30 s, 100 s, and 300 s

Maximum sampling rate 15.625 kHz

Interface

USB Interface to a PC

Power Log software for download, analysis, and reporting

345 Upgrade Utility for installing a new ﬁrmware version

Logging Memory

Logging areas Three areas that can be used individually or combined into one large area

Averaging periods 1 s, 2 s, 5 s, 10 s, 30 s, 1 min, 5 min, 10 min, 15 min, and custom

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10 Fluke Corporation Fluke 345 Power Quality Clamp Meter

Logging times

Volts and current mode

Average time Logging time (1 area) Logging time (3 areas)

1 s 1 h 49 m 5 h 12 m

2 s 3 h 38 m 10 h 24 m

5 s 9 h 06 m 1 d 2 h 00 m

10 s 18 h 12 m 2 d 04 h 00 m

30 s 2 d 06 h 36 m 6 d 12 h 01 m

1 min 4 d 13 h 12 m 13 d 00 h 03 m

5 min 22 d 18 h 00 m 65 d 00 h 15 m

10 min 45 d 12 h 00 m 130 d 00 h 30 m

15 min 68 d 06 h 00 m 195 d 00 h 45 m

V & A harmonics mode

Average time Logging time (1 area) Logging time (3 areas)

1 s 0 h 34 m 1 h 38 m

2 s 1 h 08 m 3 h 16 m

5 s 2 h 52 m 08 h 11 m

10 s 5 h 44 m 16 h 23 m

30 s 17 h 13 m 2 d 01 h 11 m

1 min 1 d 10 h 26 m 4 d 02 h 23 m

5 min 7 d 04 h 10 m 20 d 11 h 25 m

10 min 14 d 08 h 20 m 81 d 0 h 50 m

15 min 21 d 12 h 30 m 121 d 13 h 15 m

single- and three-phase power mode

Average Time Logging Time (1 area) Logging Time (3 areas)

1 s 1 h 40 m 4 h 47 m

2 s 3 h 21 m 9 h 34 m

5 s 8 h 22 m 23 h 57 m

10 s 16 h 45 m 1 d 23 h 54 m

30 s 2 d 02 h 17 m 5 d 23 h 42 m

1 min 4 d 04 h 35 m 11 d 23 h 25 m

5 min 20 d 22 h 55 m 59 d 21 h 05 m

10 min 41 d 21 h 50 m 119 d 18 h 10 m

15 min 62 d 20 h 45 m 179 d 15 h 15 m

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