Devices “PIR-3M”, “PIR-4M” are intended for measurements of wall variations and wall thickness of cylindrical hollow parts (pipes). Devices are recommended for measurements of parameters of long- length- parts with spaces, hardly accessible or unavailable to introduction of measuring means.
Technical characteristics
| PIR-3M | PIR- 4M | |
| Range of measurement of wall variations, mm | 0…10 | 0…10 |
| Outer diameter of a part to be measured, mm | 165 … 285 | 240…350 |
| Outer diameter of a part to be measured (with the turn of a support arm), mm | 80…165 | 80…180 |
| Range of measurement of the wall thickness, mm | 15 … 115 | 15 … 115 |
| Value, mm: of the scale 0,1 mm
of the scale 5,0 mm |
0,02
0,1 |
0,02
0,1 |
| Limit of the permissible error of the wall variations measurement (P), mm | 0,08 + 0,02 Р | 0,08 + 0,02 Р |
| Limit of the permissible error of the wall thickness measurement, mm | 0,8 | 0,8 |
| Roughness of outer and inner surfaces of pipes Ra, µm, no more than | 6,3 | 6,3 |
| Voltage of the electrical network 50 Hz, V | 220 | 220 |
| Power consumption, VA, no more than | 50 | 50 |
Upon customer request other modifications of devices are possible.