Industrial Kelvin's Bridge Trainer

Product Code: 3511733

Kelvin Bridge: 
•    Standard Resistance: There are 10 coils of .01 ohm each arranged on a rotary dial plus a circular slide wire of total resistance .01 ohm and 500 sub-divisions is equal to .00002ohms on the normal range.
•    Multiplying Ratios: A single rotary switch furnishes 5 multiplying ratios of x100, x10, ×1, ×.1 and 0.01
•    Range of Measurement: The Bridge has a range of 2micro to 11 ohm.
•    Panel: A Bakelite panel enclosed in a teak wood box is used.  Separate current   and   potential   terminals battery and galvanometer terminals, push buttons for battery and galvanometer are provided on the panel.
•    Max. Current: 10A intermittently & 5 A continuously.
•    Accuracy: ±0.5% current 5 Amps up to 10Amps
•    Coils: Managanin Coils are used. This bridge is very suitable for the use of wires & cable manufacturers. It is being extensively used for finding the resistance of transformer winding, contact resistance of relays etc.
•    Adjustable Heavy Duty D.C. Current Source The unit is mains operated and can deliver a continuously adjustable D.C. Current of 0-10 Amp maximum. The unit consists of a Variac, a step down transformer, a bridge rectifier, filter circuit and an ammeter of 0-10A to read current. Two heavy brass terminals are provided for output.
•    Input Voltage: 230volts A.C. Mains 50c/s
•    D.C. Output: Approximate 0-10V, continuously adjusted o give a variable current of 0-10Amp depending upon external load.
•    Conductivity attachment: It is an arrangement to hold specimens in the form of wires, rods strip etc. Separate current & potential terminals are provided. Distance between potential points is 50cm. It can hold specimen of any size between ½” dia rods to 42 S.W.G. Wires.
•    Spot Galvanometer finds extensive use as a D.C. null detector in wheat stone bridges and potentiometers
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Spot Galvanometer
•    MAINS: It is a' mains' operated instrument but can operate on a 6 volt battery also. There is provision to operate this instrument can be operated on both as well as main supply 220 volts, 50Hz or 6 Volt Capacity.
•    Light Source: The light Source is 6 Volt and 0.3Amp bulb giving a bright spot on the scale. 
•    Construction: The galvanometer has built in lamp and scale arrangement and housed in a Bakelite case. The highly sensitive moving coil system is suspended in a taut band manner in a uniform field of permanent magnet.
•    Scale: The scales are 150mm long and end zero use. 
•    Zero Adjustment: The spot of light can be set at any point on the scale with the help of zero adjusting knobs.
•    Sensitivity Control: The sensitivity is controlled by a 2-pole, 6 way switch. The switch Positions are D,1/10,1/100,1/1000 and s/c 
•    Working Voltage  :  220VAC 
•    Time Period        :  2 seconds
SALIENT FEATURES:
•    Front panel built with high class insulated Printed Circuit Board sheet with well printed circuits and symbols.
•    Instruction manual.
•    Connections are brought out through 4mm Colored Sockets.
•    Patch Cords 4mm.
•    The trainer is housed in ABS Plastic cabinet.
•    Size of the trainer set 12”x10” 
PACKING LIST:
•    Industrial Kelvin Double Bridge 
•    DC Current Source 
•    Conductivity Attachment 
•    Spot Reflecting Galvanometer 
•    Special Heavy Leads 4mm.