Flexible 3-Phase Current Probe 30/300/3000A AC RMS
The TA325 current probe uses the Rogowski coil principle to measure 3-phase AC currents up to 3000A, without suffering from saturation. This probe has flexible sensor coils, enabling you to measure currents on conductors that clamp-type curent probes just can't get to, while the long battery life means you can leave it conected for longer-term measurements.
The probe is fitted with BNC connectors, so you will need to use three TA271 single-ended D9-BNC adaptors to connect it to the PicoScope 4444. The probe is not powered or sensed by PicoScope 4444 and can also be used with other oscilloscopes which have BNC inputs.
The TA325 is a switched-range 30/300/3000A AC RMS probe with 10Hz to 20kHz bandwidth, rated to 1000V CAT III on uninsulated conductors. Suitable for measuring 3-phase AC current, it has three sensor coils and scope connection leads, colour-coded to match channels A, B and C in the PicoScope software. Typical battery life is 2000 hours.
The TA325 probe is supplied without the depicted PicoScope 4444 and without the TA271 adaptors.
Technical data:
Measuring ranges: 30/300/3000A AC
Output sensitivity: 100/10/1mV per A (AC coupled)
Accuracy (45-65Hz): ± 1% of reading ± 0.1A 30/300A
± 1% of reading ± 1 A 3000A
Minimum load: 100kOhm for specified accuracy
Frequency range: 10Hz to 20kHz (-1dB)
Phase (45-65Hz): <±1°
Position sensitivity: ± 2% of reading
Noise: 80mA RMS 30A
400mA RMS 300/3000A
Temperature coeff.: ± 0.1% /°C
Power supply: two AA MN1500 LR6 alkaline batteries or an external power supply (+3V/100mA)
Battery life: 1000 hours typical
External Power: via 2.1 mm (0.08") mini power connector
Low battery: indicated by an orange LED
Overload: indicated by a red LED
Housing material: ARNITE T06-200SNF, UL94 V0
Degree of protection: IP40
Dimensions: 110 x 65 x 23mm³ (L x W x D)
Output connection: 0.5m coax cable with 3 shrouded BNC connectors
Probe:
Probe length: 610mm (24”), double-insulated
Probe diameter: 9.9mm (0.39”)
Output cable: 2m (78.7”), probe to integrator
Degree of Protection: IP65
General Characteristics:
Operating temp.: -20°C to +65°C (-4°F to +149°F)
Storage temp.: -40°C to +75°C (-40°F to +167°F)
Operating humidity: 15% to 85% RH (non-condensing)
Safety standards: EN 61010-1, EN 61010-2-032,
EMC: EN 61326-2-2
1000V RMS, Category III, 600V RMS, Category IV
30V maximum between output and ground
Rated for continuous use.