68 | The Fisher Story
1990s
1990 William W. Landholt succeeds Larry Solley as
group vice president of FCS. Larry Solley succeeds
Robert Flynn as chief executive officer and is elected
chairman.
North America sales meeting utilizes the theme
“Shaping Tomorrow...Today.” (Arizona Biltmore Resort
in Phoenix, Arizona)
Bill Fisher passes away.
The 500,000th Type 546 electro-pneumatic transducer
is sold.
ENVIRO-SEAL ® valve packing system and
FlowScanner valve diagnostics system introduced.
Fisher Instruments, Too
Left to right Larry Schrum, Mike Mason, Dale Gummert, Ed Baumbach, Roger Hanus, Jerry Roberts, Denny Brown, Lawrence Catherwood,
Bev McFarland, Barb Ohrt, Don Drew, Jerry Williams, Bill Landholt and Terry Buzbee at the Governor Road plant,1990
O
ne of most successful
Fisher instruments was the
4100 Series Wizard controllers
(1939) developed to provide
proportional or on/off
pneumatic gauge pressure
control. The proportional band
of the later 4100s was from 2 to
50% of the Bourdon tube range.
The instrument provided easy
change over from reverse to
direct-acting and a weatherproof
housing. Series 4190 Wizard
controllers are still selling today.
The Type 546 current-topressure transducer (1965) was
equally successful, with sales of
one-half million units by 1990.
Chrome-plated units (#500,000
and #500,001) were used by the
display department fo