Refrigeration systems, including particularly refrigeration
transport systems, requires operation under a Wide variety of
ambient temperatures and operating loads. The applicants
have found that, in order to operate properly under loW box
temperature conditions, it Was desirable to use particular
commercially available pressure transducers for sensing the
evaporator refrigerant in order to obtain high accuracy in
reading the evaporator outlet pressure under loW box tem
perature conditions. Unfortunately, this transducer does not
result in accurate readings outside a refrigerant pressure
range of —14.7 psig to about 100 psig.