JHQ-1 Lightweight logging toolDetailed product description：

1、 Purpose:
The JHQ-1 portable logging tool is suitable for geophysical logging in coalfields, metal and non-metal deposits, hydrogeological engineering, drilling, etc. The instrument can record curves of different parameters within a range of 15 centimeters of recording paper width. The recorder can be used alone or in conjunction with other instruments to record various curves. This instrument consists of a recorder, power supply, range control, depth indicator, voltage regulator, winch shaft pulley, etc.

2、 Technical specifications of JHQ-1 portable logging tool
1. Record basic error: ± 1%.
2. Effective recording format: 140mm.
3. Full travel time: less than 1 second.
4. Power supply: AC220V ± 10% 50Hz ± 5%, 12V DC.
5. Power consumption: 40W (manual winch), 450W (electric winch).
6. Dimensions: 390 × 265 × 190mm3.

3、 Measurement control
1. Measurement range: (when fine-tuning the attenuator to zero) 10 levels, with an error of less than ± 1%.
2. The underground power supply adopts a stable current power supply.
Depth indicator: digital display range of 0.01m to 999.99m, reversible counting, and equipped with a zero button. It can also digitally display the cable reel to increase the descent speed, with a maximum display of 99.9m per minute.