QJ48 Comparison Ceremony BridgeDetailed product description：

The QJ48 comparative bridge is used for the calibration of precision DC resistance instruments such as 0.01% resistance boxes and 0.01% bridges. There is no need to use alternative methods when using this instrument, and since it comes with a standard resistance gauge, there is no need to correct the readings. The accuracy of the instrument is ± 0.002% (no need for correction)

QJ48 compares the main technical performance of ceremonial bridge:
1. Measurement range: 1 Ω～ 100k Ω
2. Accuracy: 0.002%
3. Main parameters of each range
Rx (Ω) accuracy does not exceed (%) guaranteed accuracy temperature range (℃) operating temperature range (℃) operating relative humidity (℃) exceeding the guaranteed accuracy temperature range, instrument accuracy decreases by (%) every 1 ℃
105～10 ±0.002 20±0.5 20±5 ≤70 ±0.002
10～10-1 ±0.02 20±2 ±0.005
10-1～10-3 ±0.2 20±5
4. Dimensions: 800 × 500 × 200 (mm)
5. Weight: 30kg

Complete set (user customized)
1. AZl9 DC galvanometer
2.0~30V, 200mA or above adjustable voltage regulator or A power supply