OVERVIEW & SPECIFICATION

The Fluke 345 is more than an electric power meter. Combining the functions of a clamp meter, oscilloscope, data logger and digital power meter into one handy device, the Fluke 345 is ideal for working with variable frequency motor drives, high efficiency lighting and other loads using switching electronics.

• Setup and troubleshoot variable frequency drives and UPS systems – Verify correct operation by measuring key power quality 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

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  110/230 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
Maximum safe working voltages	Safety IEC 61010-1 600 V CAT IV double or reinforced insulation, pollution degree 2
	Protection IP40; EN60529
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 A
Immunity	IEC/EN 61326-1:1997 Annex C Performance Criterion B

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.

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