User manual

Getting Started: Product Description
1–6
WFM 90 & WFM 91 User Manual
More Information
 Instrument options and accessories, as well as ordering
information, are listed beginning on page 1–7.
 Battery operation is discussed beginning on page 1–12.
 A tutorial covering basic instrument operation starts on page
2–11.
 Detailed menu descriptions begin on page 3–1.
 A complete listing of instrument performance specifications is
located in Appendix A.