The MAS-1 Probe is an invasive probe for the measurement of mA (tube current) and mAs. Together with Piranha or Barracuda direct reading of mA and mAs as well as waveform are obtained. The MAS-1 Probe connects to the mAs socket of the X-ray generator and to the multimeter. This provides a direct reading of the mA and mAs, as well as an mA waveform. The MAS-1 Probe can be used to measure tube current for both fluoroscopic and radiographic exposures. The probe has a built-in low-pass filter with user-selectable bandwidth of 5 or 500 Hz and accepts a floating input range of ±90 V relative to ground.
The MAS-1 Probe supports the Piranha ADI (automatic detector identification) system. When connected, the Piranha automatically identifies the probe and makes all necessary adjustments without any need for interaction from the user. The Piranha ADI system also gives full interchangeability of probes between different Piranha systems using the same type of probes.
To use the MAS-1 Probe with the Barracuda, the Barracuda must have an electrometer module. Recommended model is EMM-BiasW. The Barracuda mAs-1 probe can be used with the extension cable, EXT-1.
| Type | MAS-1B |
| Current range | 0.1–3000 mA |
| Inaccuracy | ±1 % or ±0.01 mA |
| Charge range | 0.001 mAs-9999 mAs |
| Frequency range | DC–500 Hz (-3 dB) |
| Size | 60 x 35 x 72 mm |
| Weight | 125 g |
| Battery life |
around 100 h |
| Rechargeable battery | with mini-USB connector |
| Cable length | 4 m for Piranha (extension available) |
| Cable length | 8 m for Barracuda (extension available) |
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