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Re-reeling orders placed after 16:30 will be processed the next working day.
The TF930 is a portable, battery-operated, universal counter with a large 0.5 inch 10-digit liquid crystal display (LCD). The frequency range is 0.001Hz to 3GHz and measurement functions include frequency, period, ratio, pulse width and count.
The instrument uses a high quality temperature compensated internal frequency reference which has a low aging rate and is stable to within ±1ppm over the full temperature range. Its short warm-up time allows accurate measurements to be made even under portable battery powered conditions.
Input A has configurable coupling (AC or DC), input impedance (1MW or 50W), attenuation (1:1 or 5:1), threshold (fully variable) and active edge and can be used for frequencies in the range 0.001Hz to >125MHz.
Input B is a nominal 50W input for frequencies in the range 80MHz to 3GHz.
An External Reference input is provided and changeover from the internal time base is automatic when an external reference standard is connected.
For frequency, period and frequency ratio functions the instrument uses a reciprocal counting technique to provide high resolution at all frequencies. 8 significant digits of answer are produced in a 1 second measurement time, 9 digits in 10s and 10 digits in 100s with a granularity of less than 2 counts in the least significant digit.
Indicators show measurement input configuration and function, measurement time and status, external reference connection, low battery and the units of the measurement which may be Hz, kHz, MHz, ns, us, ms or s.
The instrument has a USB interface which allows it to be remotely controlled using RS232 protocol via a computers USB port. The remote commands of its predecessor instrument, the TF830, are compatible with the TF930 command set. The instrument can also be powered from a standard USB port.
The instrument operates from internal rechargeable NiMH batteries which give typically 24 hours operating life. The universal AC charger supplied will recharge the batteries in less than 4 hours and can be used for continuous AC operation.
Frequency | 0 to 3000MHz |
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Power Source | 85 to 240V |
Type | Frequency counter |
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