Cropico RBB Datasheet0 pages

RBB
HIGH ACCURACY DECADE BOXES WITH VERSATILE
WIDE OHM RANGE
Resistance Decades & Standards
A versatile range of resistance decade boxes, available in 5 & 6
decades. Both high accuracy and a wide range, 0.001 ohm to
11 mega ohm, are combined in a rugged case. The switches
used are gold plated to ensure a low contact resistance and
negligible thermal E.M.F. Some models employ the Waidner Wolf
technique to eliminate the errors that may be caused by the
variations in switch contact resistance. These models are
particularly suited to applications such as Pt100 simulation where
resolutions as low as 0.001 ohm (» 0.0025°C) are required.
key feature RBB
5 and 6 decades available n
Total Range 11.111 Mega ohm n
Smallest Steps 0.001 milli ohm n
Accuracy 0.05% for premium dials n
Resistance coils wound in selected low TC wire n
Special models for Pt100 simulation n
Special Waidner Wolff decade minimises switch
contact resistance n
Special model for insulation simulation n
Bracken Hill, South West Industrial Estate, Peterlee, County Durham, SR8 2SW United Kingdom
Tel: +44 (0) 191 586 3511 Fax: +44 (0) 191 586 0227 Email: sales@cropico.com Web: www.cropico.com