We are offering kelvin cum wheatstone bridges.
description:-
“rai” precision kelvin-cum-wheatstone bridges model 55x-kw is important instruments in the measurement of resistance as low as 0.1 micro ohms to highest value of 1 ohm. Manganin has the quality of very low temperature co-efficient which is a critical parameter for resistance standards manufacturing. Kelvin cum wheatstone bridge is also constructed with manganin coils & sheet. Phosphor bronze silver plated switches have been used to minimize the residual resistance error. Four standard decade dials, ratio selector & plug keys facilitate accurate null detection.
kelvin bridge section
user can easily change over from kelvin section to wheatsone bridge section & vice-a-versa with the help of a selector switch.
range of measurement 0.1 micro-ohm to 1 ohm
accuracy below 0.0001 ohm +- 0.5% +- 1 slide wire division
0.0001 ohm to 0.01ohm +- 0.1%
above 0.01 ohm +- 0.05%
reference resistance standards 0.001, 0.01, 0.1 and 1.0 ohm
dividing ratio 1 , 10 , 100 and 1000 ohm
multiplying ratio 0.1 x 1, 1.0 x10, 10 x10 and 100 x10 ohm in shape of standard decade resistors.
wheatstone bridge section
range 1ohm to 1.0 megohm
accuracy 1 ohm to 100.0 k 0.1 % +- 1 step of lowest decade dial
above 100.0 k 1.0 %
dividing and multiplying ratio in denominations of 1, 10, 100 and 1000 ohm
variable arm formulated by decade dials of 10x0.1, 10x 1, 10 x10 and 10 x 100 ohm.
accessories for kelvin-cum-wheatstone
following accessories are required with the kelvin-cum-wheatstones support accessories to complete the measurement system. The bridge becomes the complete measurement system in conjunction with the following accessories:
1. conductivity attachment
2. high amperage dc source ( 0 to 50amp. Suitable for bridge)
3. spot reflecting galvanometer
4. analogue galvanometer with selector switch for protection of spot reflecting galvanometer
5. current reversing switch

We are offering kelvin cum wheatstone bridges.
description:-
“rai” precision kelvin-cum-wheatstone bridges model 55x-kw is important instruments in the measurement of resistance as low as 0.1 micro ohms to highest value of 1 ohm. Manganin has the quality of very low temperature co-efficient which is a critical parameter for resistance standards manufacturing. Kelvin cum wheatstone bridge is also constructed with manganin coils & sheet. Phosphor bronze silver plated switches have been used to minimize the residual resistance error. Four standard decade dials, ratio selector & plug keys facilitate accurate null detection.
kelvin bridge section
user can easily change over from kelvin section to wheatsone bridge section & vice-a-versa with the help of a selector switch.
range of measurement 0.1 micro-ohm to 1 ohm
accuracy below 0.0001 ohm +- 0.5% +- 1 slide wire division
0.0001 ohm to 0.01ohm +- 0.1%
above 0.01 ohm +- 0.05%
reference resistance standards 0.001, 0.01, 0.1 and 1.0 ohm
dividing ratio 1 , 10 , 100 and 1000 ohm
multiplying ratio 0.1 x 1, 1.0 x10, 10 x10 and 100 x10 ohm in shape of standard decade resistors.
wheatstone bridge section
range 1ohm to 1.0 megohm
accuracy 1 ohm to 100.0 k 0.1 % +- 1 step of lowest decade dial
above 100.0 k 1.0 %
dividing and multiplying ratio in denominations of 1, 10, 100 and 1000 ohm
variable arm formulated by decade dials of 10x0.1, 10x 1, 10 x10 and 10 x 100 ohm.
accessories for kelvin-cum-wheatstone
following accessories are required with the kelvin-cum-wheatstones support accessories to complete the measurement system. The bridge becomes the complete measurement system in conjunction with the following accessories:
1. conductivity attachment
2. high amperage dc source ( 0 to 50amp. Suitable for bridge)
3. spot reflecting galvanometer
4. analogue galvanometer with selector switch for protection of spot reflecting galvanometer
5. current reversing switch