| Field | Details |
|---|---|
| Type (TYP) | PKR 251 |
| Part Number (No) | PTR26000 |
| Manufacturer | Pfeiffer Vacuum, D-35614 Asslar, Germany |
| Date Code | 2016/01 |
| Supply Voltage | 15...30V DC |
| Power Consumption | 2W |
| Gauge Type | Compact Full Range Gauge (Pirani + Cold Cathode combined) |
| Flange Connection | DN40 KF (NW40) stainless steel |
| Connector | 6-pin square connector on top |
| CE Marked | Yes |
This is a used Pfeiffer Vacuum PKR 251 Compact Full Range Gauge, part number PTR26000. The PKR 251 combines a Pirani sensor and a cold cathode (magnetron) sensor in a single compact housing, providing wide pressure measurement range from atmosphere down to high vacuum. The unit features a DN40 KF stainless steel vacuum flange connection, a 6-pin connector on top, and a green LED status indicator. The body is white polymer/plastic with a stainless steel lower section and flange. A magnetic field warning label (10 cm / 4 inch keep-away distance) is affixed to the stainless steel section as expected for cold cathode gauges.
Unit is in used condition. The white housing shows minor surface scuffs and light marks consistent with lab use. The stainless steel flange and body appear clean and intact. The 6-pin connector is present and undamaged. No major damage observed. Sold as used, working condition.
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