Fluke 3210/RPM Flexi-CT Flexible Current Transformer

Fluke 3210/RPM Flexi-CT Flexible Current Transformer
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Fluke 3210
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The Fluke 3210-PR-TF 1000A Flex Thin Flex Current Probe is an ac current probe utilizing the Rogowski principle. The Fluke 3210PRTF Probe is designed for use with the Fluke 1750 Power Recorder and measures current from very low frequencies up to the 50th harmonic of a 50/60 Hz power supply. The flexible and lightweight measuring head allows quick and easy installation in hard to reach areas and around large conductors.


Electrical Characteristics
Measurement Range 20 to 1000 A (with a crest factor ≤3)
Frequency Range 40 Hz to 5 kHz
Accuracy (@ 25°C) ±1 % of reading
(10 % to 100 % of range)
±0.2 % of reading per °C
Temperature Coefficient ±0.05 % of reading per °C
Position Sensitivity 
(w/ cable >25 mm from coupling)
±2 % of reading
External Field 
(w/ cable >200 mm from head)
±1 % of reading
Working Voltage 
(see Safety Standards)
1000 V ac rms or dc
General Characteristics
Probe and Cable Material Alcryn 2070NC, reinforced insulation, UL94 V0, Color: RED
Probe Cable Length 24 in. (610 mm)
Probe Cable Diameter 0.3 in. (8 mm)
Transducer Bend Radius (min) 1.5 in. (38.1 mm)
Output Cable 2 core screened, double insulated, 3 meters long
Output Connector LEMO 6 pin male connector
Operating Temperature Range -4 to +158°F (-20 to +70°C) (the temperature of the conductor under test shall not exceed 176°F /80°C)
Storage Temperature Range -40 to 176°F (-40 to +80°C)
Operating Humidity 15% to 85% (non condensing)
Altitude max 6562 ft. (2000 m)
Degree of ingress protection IP40 (IEC 60529)
Safety Standards
EN/IEC 61010-1:2001
EN/IEC 61010-031:2002+A1:2008
EN/IEC 61010-2-032:2002
Pollution Degree 2
Use of the Probe on uninsulated conductors is limited to 1000 V under CAT III installations and 600 V under CAT IV installations ac rms or dc and frequencies below 1 kHz.
Note that the safety rating for the output to ground is limited to 30 V ac rms or dc by the connector specified.