FLUKE 345

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

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 range100 mA in 400 A rangeA in 2000 A range

Accuracy: DC and DC rms I > 10 A

±1.5% rdg ±5 digits

Accuracy: DC and DC rms I < 10 A

±0.2 A

Accuracy: AVG I > 10 A

±3% rdg ±5 digits

Accuracy: AVG I < 10 A

±0.5 A

Accuracy: Pk I > 10 A

±5% rdg ±5 digits

Accuracy: Pk I < 10 A

±0.5 A

Accuracy: AHr I > 10 A

±2% rdg ±5 digits

Accuracy: AHr I < 10 A

±0.5 AHr

Accuracy: CF (Crest Factor) 1.1 ≤ CF < 3

±3% rdg ±5 digits

Accuracy: CF (Crest Factor) 3 ≤ CF < 5

±5% rdg ±5 digits

Accuracy: CF (Crest Factor) Resolution

0.01

Accuracy: RPL (Ripple) 2% ≤ RPL < 100%

±3% rdg ±5 digits

Accuracy: RPL (Ripple) 100% ≤ RPL < 600%

±5% rdg ±5 digits

Accuracy: RPL (Ripple) Resolution

0.1%

Accuracy: RPL (Ripple)

I DC > 5 A, I AC > 2 A

Electrical data

Accuracy

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

Interface

USB Interface to a PC

Power Log software for download, analysis and reporting345 Upgrade Utility for installing a new firmware version

Voltage measurement (DC, DC rms, AC rms)

Measuring range

0 to 825 VDC or AC rms

Autorange facility

4 V / 40 V / 400 V / 750 V

Resolution

1 mV in 4 V range10 mV in 40 V range100 mV in 400 V range1 V in 750 V range

Accuracy: DC and DC rms

V > 1 V: ±1% rdg ±5 digits || V < 1 V: ±0.02 V

Accuracy: AVG

V > 1 V: ±3% rdg ±5 digits || V < 1 V: ±0.03 V

Accuracy: Pk

V > 1 V: ±5% rdg ±5 digits || V < 1 V: ±0.03 V

Accuracy: CF (Crest Factor) 1.1 ≤ CF < 3

±3% rdg ±5 digits

Accuracy: CF (Crest Factor) 3 ≤ CF < 5

±5% rdg ±5 digits

Accuracy: CF (Crest Factor) Resolution

0.01

Accuracy: RPL (Ripple) 2% ≤ RPL < 100%

±3% rdg ±5 digits

Accuracy: RPL (Ripple) 100% ≤ RPL < 600%

±5% rdg ±5 digits

Accuracy: RPL (Ripple) Resolution

0.1%

Accuracy: RPL (Ripple)

VDC > 0.5 V, VAC > 0.2 V

Power factor (single- and three-phase)

Measuring range

0.3 capacitive to 1.0 and 1.0 to 0.3 inductive (72.5° capacitive to 0° and 0° to 72.5° inductive) || 0.3 capacitive to 1.0 and 1.0 to 0.3 inductive (72.5° capacitive to 0° and 0° to 72.5° inductive)

Resolution

0.001 || 0.001

Accuracy

±3° || ±3°

Frequency range

15 Hz to 1 kHz || 15 Hz to 22 Hz and 45 Hz to 65 Hz

Scope function

Current measurement Range

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

Current measurement Resolution

1 A in 40 A10 A in 400 A50 A in 2000 A

Current measurement Accuracy

±3% rdg ±1 pixel

Current measurement Maximum overload

10,000 A

Voltage measurement Range

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

Voltage measurement Resolution

100 mV in 4 V1 V in 40 V10 V in 400 V31.25 V in 1000 V

Voltage measurement Accuracy

±2% rdg ±1 pixel

Voltage measurement Maximum overload

1000 V rms

Voltage measurement 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

Logging Times

Volts and current mode Average time

Logging time (1 area)

Volts and current mode 1 s

1 h 49 m || 5 h 12 m

Volts and current mode 2 s

3 h 38 m || 10 h 24 m

Volts and current mode 5 s

9 h 6 m || 1 d 2 h 00 m

Volts and current mode 10 s

18 h 12 m || 2 d 4 h 00 m

Volts and current mode 30 s

2 d 6 h 36 m || 6 d 12 h 1 m

Volts and current mode

1 min: 4 d 13 h 12 m || 5 min: 22 d 18 h 0 m || 10 min: 45 d 12 h 0 m || 15 min: 68 d 6 h 0 m || 15 min: Logging time (3 areas) || 1 min: 13 d 0 h 12 m || 5 min: 65 d 0 h 15 m || 10 min: 130 d 0 h 30 m || 15 min: 195 d 0 h 45 m

V and A harmonics mode Average time

Logging time (1 area)

V and A harmonics mode 1 s

0 h 34 m || 1 h 38 m

V and A harmonics mode 2 s

1 h 8 m || 3 h 16 m

V and A harmonics mode 5 s

2 h 52 m || 8 h 11 m

V and A harmonics mode 10 s

5 h 44 m || 16 h 23 m

V and A harmonics mode 30 s

17 h 13 m || 2 d 1 h 11 m

V and A harmonics mode 1 m

1 d 10 h 26 m || 4 d 2 h 23 m

V and A harmonics mode 5 m

7 d 4 h 10 m || 20 d 11 h 25 m

V and A harmonics mode 10 m

14 d 8 h 20 m || 81 d 0 h 50 m

V and A harmonics mode 15 m

21 d 12 h 30 m || Logging time (3 areas) || 121 d 13 h 15 m

Single- and three-phase power mode Average time

Logging time (1 area)

Single- and three-phase power mode 1 s

1 h 40 m || 4 h 47 m

Single- and three-phase power mode 2 s

3 h 21 m || 9 h 34 m

Single- and three-phase power mode 5 s

8 h 22 m || 23 h 57 m

Single- and three-phase power mode 10 s

16 h 45 m || 1 d 23 h 54 m

Single- and three-phase power mode 30 s

2 d 2 h 17 m || 5 d 23 h 25 m

Single- and three-phase power mode 1 m

4 d 4 h 35 m || 11 d 23 h 25 m

Single- and three-phase power mode 5 m

20 d 22 h 55 m || 59 d 21 h 5 m

Single- and three-phase power mode 10 m

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

Single- and three-phase power mode 15 m

62 d 20 h 45 m || Logging time (3 areas) || 179 d 15 h 15 m

Mechanical

Dimensions (L x W x D)

300 x 98 x 52 mm (12 x 3.75 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.

Kilowatt hour (kWHr)

Measuring range

40,000 kWHr || 15 Hz to 1 kHz

Autorange facility

4 kWHr, 40 kWHr, 400 kWHr, 4,000 kWHr, 40,000 kWHr

Resolution

1 WHr in 4 kWHr Range10 WHr in 40 kWHr Range100 WHr in 400 kWHr Range1 kWHr in 4,000 kWHr Range10 kWHr in 40,000 kWHr Range || 0.1 Hz

Accuracy kWHr > 2 kWHr

±3% ±5 digits

Accuracy kWHr < 2 kWHr

±0.08 kWHr

All Watts /VA /VAR /PF measurements Frequency range

DC and 15 Hz to 1 kHz

All Watts /VA /VAR /PF measurements Current range

10 A to 1400 A rms

All Watts /VA /VAR /PF measurements

Voltage range: 1 V to 825 V rms || Maximum input: 825 V rms / 1400 A rms

All Watts /VA /VAR /PF measurements Maximum overload

1000 V rms / 10,000 A All measurements DC and 15 Hz to 1 kHz. Maximum overload 10,000 A or rms x frequency < 400,000

Accuracy

15 to 22 Hz ±0.5% rdg40 Hz to 70 Hz ±0.5% rdg15 Hz to 1000 Hz ±1% rdg

Current range

10 A to 1400 A rms

Voltage range

1 V to 825 V rms

Electrical safety

Maximum safe working voltages

Safety IEC 61010-1 600 V CAT IV double or reinforced insulation, pollution degree 2Protection IP40; EN60529

Current measurement

600 VAC rms or DC between uninsulated conductor and ground

Voltage measurement

600 VAC rms or DC between either input terminal and ground, or 825 V between energized phase voltages (delta power config.)

Specifications

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  Input

110/230 V 50/60 Hz

Battery eliminator  Output

15 VDC, 300 mA

EMC

Emission

IEC/EN 61326-1:1997 A

Immunity

IEC/EN 61326-1:1997 Annex C Performance Criterion B

Harmonics

THD (Total Harmonic Distortion) 1% ≤ THD < 100%

±3% rdg ±5 digits

THD (Total Harmonic Distortion) 100% ≤ THD < 600%

±5% rdg ±5 digits

THD (Total Harmonic Distortion) Resolution

0.1%

DF (Distortion Factor) 1% ≤ DF < 100%

±3% rdg ±5 digits

DF (Distortion Factor) Resolution

0.1%

DF (Distortion Factor)

H02 ≤ Vharm < H13: ±5% ±2 digits || H13 ≤ Vharm ≤ H30: ±10% ±2 digits

Measuring range

0 to 1650 kW DC or 1200 kW AC || 4 kW, 40 kW, 400 kW, 1650 kW || 0 to 1650 kVA DC or 1200 kVA AC || 0 to 1250 kVAR

Resolution

1 W in 4 kW10 W in 40 kW100 W in 400 kW1 kW in 1200 kW || 1 VA in 4 kVA10 VA in 40 kVA100 VA in 400 kVA1 kVA in 1200 kVA || 1 VAR in 4 kVAR10 VAR in 40 kVAR100 VAR in 400 kVAR1 kVAR in 1200 kVAR

Accuracy

2.5% rdg ±5 digitsW1Ø < 2 kW ±0.08 kWW3Ø < 4 kW ±0.25 kW || VA > 2 kVA: 2.5% rdg ±5 digits || VA < 2 kVA: ±0.08 kVA || VAR > 4 kVAR: ±2.5% rdg ±5 digits || VAR < 4 kVAR: ±0.25 kVAR

Autorange facility

4 kVA, 40 kVA, 400 kVA, 1650 kVA || 4 kVAR, 40 kVAR, 400 kVAR, 1200 kVAR

Power factor range

0.3 < PF < 0.99

Inrush current function

Ranges

40 A, 400 A, and 2000 A

Resolution

10 mA in 40 A range100 mA in 400 A range1 A in 2000 A range

Accuracy I > 10 A

±5% rdg ±1 pixel

Accuracy I < 10 A

±0.5 A

Accuracy

All measurements DC and 15 Hz to 1 kHz

Maximum overload

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

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

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