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2768 Precision Wheatstone Bridge
Brand: Yokogawa
Model 2768 is a Precision Bridge used for exact determination of resistance in the 100 MilliOhms to 110 MegaOhms range with accuracy of 0.01 to 0.05%. Since this instrument includes a high-sensitivity transistorized galvanometer and bridge power source, no auxiliary device is required.
Features- Superior resistor aliment
- Minimized contact resistance
- Guarding and shielding
- Materials of high insulation resistance and low absorption are employed. Guard circuits are provided to insure stable operation even In highly humid atmospheres. The instrument is housed in a {grey} metal case to assure -to operator of excellent shielding.
- Heat-insulated pushbutton keys
- If the operator's body temperature were carried to the galvanometer sensitivity control keys, a temperature difference would arise at the contact point and produce thermal EMF resulting in measurement error. To eliminate this effect, the pushbutton keys for the galvanometer sensitivity control are heat-insulated with phenol resin.
Specifications
Brand
Accuracy
- ± (0.02% of Setting + 0.5 MilliOhm)
- ± 0.01 to ± 0.05% of Setting
Battery Life
- Approximately 300 Hours
Enclosure, Body Material
- Grey Metal Case with Plastic feet & Carrying Handles
Input
- 0.2 W - Maximum
Insulation Resistance
- > 1,000 MegaOhms at 250 Vdc at Ambient Humidity of 1,000 MegaOhms at 250 Vdc at Ambient Humidity of 1,000 MegaOhms at 250 Vdc at Ambient Humidity of 1,000 MegaOhms at 250 Vdc at Ambient Humidity of 1,000 MegaOhms at 250 Vdc at Ambient Humidity of 1,000 MegaOhms at 250 Vdc at Ambient Humidity of 1,000 MegaOhms at 250 Vdc at Ambient Humidity of 1,000 MegaOhms at 250 Vdc at Ambient Humidity of < 75% between Electric Circuit & Case
Measuring Range
- 0.10000 to 111.110 MegaOhms
Power
- 1.5 / 3 / 6 / 15 V - Bridge
Power Requirement
- Four 1.5 V Batteries (JIS R20P, ANSI D, Mono 1.5 V or Equivalent) - Bridge
- Single 9 V Battery (JIS 6F22, ANSI 6F22, Energieblock 9 V or Equivalent) - Bridge
Resistance
- 100 MilliOhms to 110 MegaOhms
Sensitivity
- Maximum
Supply Voltage
- 500 Vac for One Minute between Electric Circuit & Case - Dielectric Strength
