The Hitachi CR22G/CR21G user manual provides safety guidelines, operation procedures, specifications, maintenance, and troubleshooting for the high‑speed…
This manual explains safe handling, installation, and operation of the Hitachi CR22G/CR21G high‑speed refrigerated centrifuge. It includes safety reminders, mechanical safety rules, and instructions for proper grounding and decontamination.
The document is organized into sections covering specifications, basic and programmed operation, menu functions, maintenance, troubleshooting, warranty information, and a list of standard accessories. It also provides detailed guidance for installation, relocation, and service procedures.
| Maximum Speed | 22,000 rpm (CR22G) / 21,000 rpm (CR21G) |
|---|---|
| Speed Range | 300 rpm to 22,000 rpm |
| Dimensions (W × D × H) | 752 mm × 810 mm × 1132 mm |
Operators must read all safety reminders, keep a 30‑cm clearance envelope around the instrument while the rotor is spinning, avoid unlocking the door during rotation, and follow all warning and caution symbols in the manual.
Installation or relocation must be performed by an authorized Hitachi Koki service representative, and the unit must be leveled using the four level adjusters and securely fastened.
The user must decontaminate the centrifuge, rotor, and accessories according to good laboratory procedures, fill out the Decontamination Sheet, and attach it to the product before returning it to Hitachi Koki.
This manual explains 7 error codes. Open a code for its meaning, causes and what to do: