Model 2768 is a Precision bridge used for the exact determination of resistance in the 100 MΩ to the 110MΩ Range with an 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.
Dimensions | 497(W)×316(H)×140(D)mm, excluding protrusions 19.57 × 12.44 × 5.51 in. |
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Weight | Approx. 9.6kg 21.2 lbs |
Measuring Method | Null method (in-line readout). |
Measuring Arm | 0 to 11, 111Ω adjustable in 0.1Ω steps, (consists of five decades; 1,000Ω x 10 + 100Ω x 10Ω x 10 + 1Ω x 10 + 0.1Ω x 10) |
Multiplier | x 100mΩ, x 1Ω, x 10Ω, x100Ω, x1kΩ, x 10kΩ, x100kΩ, x1MΩ, and x10MΩ |
Accuracy | (at 23±2°, less then 75%) x 100mΩ range ±0.5mΩ, x 1Ω range (±0.02% of setting +0.5mΩ) x 10Ω range, x 100kΩ & 1MΩ ranges ±0.02% of setting x100Ω x 1kΩ & x 10kΩ ranges & |
Maximum Allowable Input | 0.2W continuously for ratio arm, 0.2W continuously per element of Measuring arms |
Insulation Resistance | More then 1000MΩ at 250V DC at ambient Humidity of less then 75% between electric circuit and case |
Dielectric Strength | 500V AC for one minute between electric circuit and case |
Galvanometer (Built-In) | Max sensitivity approx. 10µV/div. (provided with a sensitivity adjuster) |
Galvanometer Power Source | Single 9V battery (JIS 6F22 or equivalent) |
Galvanometer Battery Life | Approx. 300 Hours |
Case | Grey metal Case, with plastic feet and carrying handles |
Bridge Power Source (Built-In) | Power source range - 1.5/3/6/15V selectable, Power source battery - four 1.5V batteries (JIS R20P, ANSI D, Mono 1.5V or equivalent) and a single 9V battery (JIS 6F22, ANSI 6F22, Energieblock 9V or equivalent) |
Range | Measuring Range | Min Division |
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x 100 MΩ | 0.10000 to 1.11110 Ω | 10 μΩ |
x 1 Ω | 1.0000 to 11.1110 Ω | 0.1 mΩ |
x 10 Ω | 10.000 to 111.110 Ω | 1 mΩ |
x 100 Ω | 100.00 to 1111.10 Ω | 10 mΩ |
x 1 kΩ | 1.0000 to 11.1110 kΩ | 0.1 Ω |
x 10 kΩ | 10.000 to 111.110 kΩ | 1 Ω |
x 100 kΩ | 100.00 to 1111.10 kΩ | 10 Ω |
x 1 MΩ | 1.0000 to 11.1110 kΩ | 100 Ω |
x 10 MΩ | 10.000 to 111.110 kΩ | 1 kΩ |