Service Manuals, User Guides, Schematic Diagrams or docs for : . Various Guildline guildline-9230a-30-specifications-d2344

                                                                   9230A Series
                                                    Precision DC Current Shunts
              Excellent as a Precision Current Shunt or Standard Resistor


                                           GUILDLINE INSTRUMENTS 9230A SERIES of precision DC
                                           current shunts are true 4-terminal devices intended for the
                                           precise measurement of DC current. They are constructed
                                           from specially selected elements supported on an insulating
                                           base for mechanical stability and covered with a perforated
                                           metal cover to allow proper cooling while providing
                                           physical protection for the elements. The design of the
                                           9230A includes special features to reduce the effects of
                                           power dissipation and associated self heating errors. These
                                           shunts are designed to operate in air at full power.

                                           The type of material selected for the elements has a very low
                                           temperature coefficient and the size and number of
                                           elements chosen give the optimum surface area to dissipate
                                           the maximum specified power in air for a particular value.
                                           The performance of the 9230A shunts can be dramatically
                                           improved by operating them immersed in oil or
    9230ASERIES FEATURES                   temperature baths.

 Extremely Low Self-Heating Effects        The terminations of the shunts have been selected to give
                                           low thermal emf's and in the case of the higher current
 Low Temperature Coefficients              values (i.e. 300 amperes and above), to ensure that the
                                           current applied is distributed in a constant manner,
 Low Thermal EMF's                         independent of how the connecting leads are arranged.

 Wide Dynamic Range                     The 9230A Series of Precision DC Current Shunts
 Controlled Current Distribution        are true 4-terminal devices capable of the most
 Through The Element                    demanding measurements ofpreciseDCcurrent.
 < 10 ppm Long Term Stability
                                           The care and attention to the design of the 9230A's has
 Air or Oil Cooled Applications            produced a series of shunts with a very wide dynamic range,
                                           virtually from zero to full rated current. The 9230A shunts
 Special Values Available On Request       are also heat treated for excellent long term stability.
                                           Operated below 30% of rated current, and maintained in a
 Forced Convection Option Available        constant temperature oil bath, the 9230A's stability enables
 Improves Power Dissipation                it to be used as a standard reference resistor.
                                           Special values in the range of 1 ohm to 50 
                                           on request. Guildline can also produce custom value shunts
                                           to meet special customer requirements.
                                           The 92310 forced convection unit with power supply is
                                           made available as an accessory to allow operation on the
                                           bench top at up to 100W dissipation with much improved
                                           repeatability and power coefficient performance.

                                           The 9230A-15R is made available as a direct replacement for
                                           the older version model 9230/15 shunt. Our best seller is
                                           the NEW 30 Amp model that has the same ohmic value as
              SHOWN WITH OPTIONAL          the old series 9230-15 but can handle twice the current (up
                                           to 30 Amps (with the optional 92310 Forced Air Unit)!
              92310 FORCED AIR UNIT
9230A Series of Precision DC Current Shunts
9230A Series Specifications
                                             Nominal 1                            Initial 2                  Maximum Current (A) 3                12 Month Stability (