This is a user manual for TA044 70 MHz High-Voltage Differential Probe
This manual covers safety precautions, grounding requirements, and proper handling of the TA044 high‑voltage differential probe. It explains the probe’s compliance with IEC‑1010.2‑031 CAT I standards, maximum working voltages, and the need for secure grounding before connecting to measurement instruments.
The document also lists the probe’s technical specifications, power options, installation steps, and cleaning instructions. It describes the available power leads, dimensions, and accessories needed for accurate differential measurements with oscilloscopes.
| Bandwidth | DC to 70 MHz (-3 dB) |
|---|---|
| Attenuation ratio | 1:100/1000 |
| Accuracy | ±2 % |
| Differential Range (1/100) | +700 V (DC + Peak AC) or 700 V rms |
| Max Differential (1/1000) | +7000 V (DC + Peak AC) or 5000 V rms |
| Common Mode Range | +7000 V (DC + Peak AC) or 2500 V rms |
| Absolute Max Voltage | +7000 V (DC + Peak AC) or 2500 V rms |
| Offset (typical) | < +5 mV |
| Noise (typical) | 0.9 mV rms |
| CMRR (typical) | -80 dB @ 60 Hz; -50 dB @ 1 MHz |
| Ambient Operating Temperature | -10 °C to 40 °C |
| Ambient Storage Temperature | -30 °C to 70 °C |
| Power Requirements | 4 × AA cells or 6 V DC/200 mA adaptor or 9 V DC/120 mA adaptor |
| Length of Input Leads | 60 cm |
| Length of BNC Lead | 90 cm |
| Weight | 500 g |
| Dimensions (L × W × H) | 202 mm × 83 mm × 38 mm |
Do not use the probe above 2500 V rms CAT I between each input lead and earth, or above 5000 V rms CAT I between the two input leads.
The probe is grounded through the shell of the BNC connector and an auxiliary grounding terminal, and you must verify that it is securely grounded before connecting the input leads.
Use four AA cells, a 6 V DC/200 mA mains adaptor, or a regulated 9 V DC/120 mA mains adaptor.