Fluke 355 and 353 True-rms 2000 A Clamp Meters

Confidently take reliable readings with the True-rms, Fluke 355 and 353 digital clamp meters; the tools of choice for high current clamp-on amp meter measurement up to 2000 A. The extra-wide jaw easily clamps around large conductors, typically found in high-current applications. The extra rugged design and CAT IV 600 V, CAT III 1000 V ratings add an extra element of user protection when taking high-powered measurements.

Accurate peak measurements can be taken using the in-rush current mode, ideal for motors and inductive loads. The 355 also measures voltage and resistance, making this an ideal clamp meter for utilities, electrical contractors and industrial service technicians.



Description

Electrical specifications
Current measurement dc and ac 10 Hz to 100 Hz
Range : 40 A  Resolution: 10 mA
Accuracy, A: 1.5 % rdg + 15 digits
Trigger Level for Inrush: 0.50 A
Trigger Level for Hz Filter OFF: 2.50 A
Trigger Level for Hz Filter ON: 0.50 A
Range : 400 A  Resolution: 100 mA
Accuracy, A: 1.5 % rdg + 5 digits
Trigger Level for Inrush: 5.0 A
Trigger Level for Hz Filter OFF: 2.5 A
Trigger Level for Hz Filter ON: 2.5 A
Range : 2000 A; 1400 ac rms  Resolution: 1 A
Accuracy, A: 1.5 % rdg + 5 digits
Trigger Level for Inrush: 5 A
Trigger Level for Hz Filter OFF: 8 A
Trigger Level for Hz Filter ON: 8 A
Crest Factor (50/60 Hz)
Range : 40 A  Crest Factor* : 2 @ 33 A, 2.4 @ 27 A
Range : 400 A  Crest Factor* : 2 @ 330 A, 2.4 @ 270 A
Range : 2000 A; 1400 ac rms  Crest Factor* : 2 @ 1000 A, 2.4 @ 833 A
Current measurement ac 100.1 Hz to 1 kHz
Range : 40 A  Resolution: 10 mA
Accuracy > 10 A : 3.5 % rdg + 15 digits
Trigger Level for Inrush: 0.50 A
Trigger Level for Hz Filter OFF : 2.50 A
Trigger Level for Hz Filter ON : 0.50 A
Range : 400 A  Resolution: 100 mA
Accuracy > 10 A : 3.5 % rdg + 5 digits
Trigger Level for Inrush: 5.0 A
Trigger Level for Hz Filter OFF : 2.5 A
Trigger Level for Hz Filter ON : 2.5 A
Range : 2000 A; 1400 ac rms  Resolution: 1 A
Accuracy > 10 A : 3.5 % rdg + 5 digits
Trigger Level for Inrush: 5 A
Trigger Level for Hz Filter OFF : 8 A
Trigger Level for Hz Filter ON : 8 A
Voltage measurement (355 only) dc and ac 10 Hz to 100 Hz
(600 V and 1000 V ranges have 10 % over range to 660 V and 1100 V respectively.)
Range : 4 V  Resolution: 1 mV
Accuracy: 1 % rdg + 10 digits
Trigger Level for Hz Filter OFF: 0.050 V
Trigger Level for Hz Filter ON: 0.050 V
Range : 40 V  Resolution: 10 mV
Accuracy: 1 % rdg + 5 digits
Trigger Level for Hz Filter OFF: 0.25 V
Trigger Level for Hz Filter ON: 0.25 V
Range : 400 V  Resolution: 100 mV
Accuracy: 1 % rdg + 5 digits
Trigger Level for Hz Filter OFF: 6 V
Trigger Level for Hz Filter ON: 6 V
Range : 600 V ac rms  Resolution: 1 V
Accuracy: 1 % rdg + 5 digits
Trigger Level for Hz Filter OFF: 6 V
Trigger Level for Hz Filter ON: 6 V
Range : 1000 V dc  Resolution: 1 V
Accuracy: 1 % rdg + 5 digits
Voltage measurement (355 only) ac 100.1 Hz to 1 kHz
(600 V and 1000 V ranges have 10 % over range to 660 V and 1100 V respectively.)
Range: 4 V  Resolution: 1 mV
Accuracy: 3 % rdg + 10 digits
Trigger Level for Hz Filter OFF: 0.050 V
Trigger Level for Hz Filter ON: 0.050 V
Range: 40 V  Resolution: 10 mV
Accuracy: 3 % rdg + 5 digits
Trigger Level for Hz Filter OFF: 0.25 V
Trigger Level for Hz Filter ON: 0.25 V
Range: 400 V  Resolution: 100 mV
Accuracy: 3 % rdg + 5 digits
Trigger Level for Hz Filter OFF: 6 V
Trigger Level for Hz Filter ON: 6 V
Range: 600 V ac rms  Resolution: 1 V
Accuracy: 3 % rdg + 5 digits
Trigger Level for Hz Filter OFF: 6 V
Trigger Level for Hz Filter ON: 6 V
Ohms measurement (355 only)
Range: 400 Ω  Resolution: 0.1 Ω
Accuracy: 1.5 % + 5 digits
Range: 4 kΩ  Resolution: 1 Ω
Accuracy: 1.5 % + 5 digits
Range: 40 kΩ  Resolution: 10 Ω
Accuracy: 1.5 % + 5 digits
Range: 400 kΩ  Resolution: 100 Ω
Accuracy: 1.5 % + 5 digits
Continuity beeper (355 only)
 On at ≤ 30 Ω
 Off at ≥ 100 Ω
Frequency measurement
Measurement range  5.0 Hz to 1 kHz
Resolution  0.1 Hz (15 Hz to 399.9 Hz); 1 Hz (400 Hz to 1 kHz)
Accuracy – 5.0 Hz to 100 Hz  0.2 % + 2 counts
Accuracy – 100.1 Hz to 1 kHz  0.5 % + 5 counts
Trigger level  Refer to current and voltage tables

*Add 2 % to error spec for CF > 2

General specifications
Batteries
 Six 1.5 V AA NEDA 15 A or IEC LR6
Battery life (with typical usage, backlight off)
 100 hours
Test leads
 Rated to 1000 V
Weight
 .814 kg (1.8 lb)
Jaw size
 58 mm (2.28 in)
Dimensions (LxWxD)
 300 mm x 98 mm x 52 mm (12 in x 3.75 in x 2 in)
Safety rating
 IEC 61010-2-032, 600 V CAT IV, 1000 V CAT III
Environmental specifications
Operating temperature
 32 °F to + 122 °F (0 °C to +50 °C)
Storage temperature
 -4 °F to 140 °F (-20 °C to +60 °C)
Operating humidity
 0 to 95 % (non-condensing)
Operating altitude
 2000 m
Storage altitude
 10,000 m
IP rating
 42 (indoor use only)
Drop test requirements
 1 m
EMI, RFI, EMC
 FCC part 15, IEC/EN 61326-1:1997 class B, IEC/EN 61326:1997 3V/m, performance criteria B, EN61325
Temperature coefficients
Current:  0.1 % of reading per °C outside 22 °C to 24 °C
Voltage:  0.1 % of reading per °C outside 22 °C to 24 °C
Fluke 355 and 353 True-rms 2000 A Clamp Meters