Seismograph Accessories

DFK-II 72-Channel Overlay Switch

· The overLay switch, fitting-in our seismograph, is used to the methods of the refraction or reflection exploration and surface wave survey. The procedure of seismic data acquisition can be simplified by the aid of the switch for field operation.
· 72 channels input, 48 channels output
· Mechanical touch, anti-interference and background noise.
· Gold plating contact, good contact
· Easy in operation and safe

DZQP-2 Blaster

· For detonating the low-voltage electric detonator
· Reliable detonating distance: 800 M
· With the aid of interlocking as safeguards
· Powered by 4pcs (1.5v× 4) R6 (size AA) batteries
· Starting the record of the seismograph when detonating primer

Hammer Switch

Applications
· For vibration source of our seismograph
· For trigger the record of the seismograph

12V controllable charger

Applications and Features
The charger which is specially designed to our seismograph can be applicable for the different 12V accumulators. It is characterized by rapid charge rate, safe, easy in operation and maintenance.

Specifications
· Power Supply: AC 220V± 10%
· Output Voltage: 12V
· Working Mode: 0~15 hours continuously
· Operable Temp. Less than 45
· Operating Environmental Range: -20~40