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Testermeter- QJ44 Portable Kelvin Bridge
General Introduction
| The portable Kelvin Bridge type QJ44 is designed for the precision measurement of low - value DC resistance. It can be used to measure the conductivity of metals, contact resistance, and the coil resistance of motors and transformers. This instrument is equipped with a built - in electronic galvanometer and has a space for battery cells. |
Specifications
Temperature Range of Use: Nominal range: +5°C to 45°C; Reference range: 20°C ± 10°C Measuring Range: 0.0001 - 19Ω; Basic range: 0.01 - 11Ω Built-in Electronic Galvanometer: Sufficient sensitivity. Within the basic range of the bridge, the galvanometer pointer deflects at least one division from zero for a change of 4 smallest divisions on the side dial setting. Power Requirements: Built-in - 6 pcs of 1.5V dry cells (R20 in parallel connection for the bridge); 2 pcs of 9V dry cells (6P22 in parallel connection for the galvanometer) Dimensions: 300 x 255 x 150 mm Weight: Approx. 5kg |
Accuracy of Error:
Multiplier Setting | Necessary Range of Rx (Ω) | Error |
X0.01 | 0.0009 - 0.0011 | 0.000011 |
X0.1 | 0.001 - 0.011 | 0.00005 |
X1 | 0.01 - 0.11 | 0.0002 |
X10 | 0.1 - 1.1 | 0.002 |
X100 | 1 - 11 | 0.02 |
