- Product Details
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Quick Details
-
Power:
-
NO
-
Material:
-
PVC
-
Size:
-
1 m
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Product name:
-
20DX geophone 28Hz
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Natural Frequency:
-
28 Hz
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Coil resistance:
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395 Ω
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Sensitivity:
-
28 v/m/s
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Typical Spurious Frequency:
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≥350Hz
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Damping:
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0.552
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Geophone case:
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waterproof land case
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Connector:
-
Split Spring clips
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Warranty Period:
-
3 years
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Lead in cable:
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1 meter
Quick Details
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Place of Origin:
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Shaanxi, China
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Brand Name:
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EGL
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Model Number:
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EG-28-I
-
Power:
-
NO
-
Material:
-
PVC
-
Size:
-
1 m
-
Product name:
-
20DX geophone 28Hz
-
Natural Frequency:
-
28 Hz
-
Coil resistance:
-
395 Ω
-
Sensitivity:
-
28 v/m/s
-
Typical Spurious Frequency:
-
≥350Hz
-
Damping:
-
0.552
-
Geophone case:
-
waterproof land case
-
Connector:
-
Split Spring clips
-
Warranty Period:
-
3 years
-
Lead in cable:
-
1 meter
Product Description
Single 20DX geophone 28Hz Vertical in land case with Split Spring clips connector
The GS 20DX geophone 28hz (EG-28-I) is a conventional double-lead spring geophone with small error in operating parameters and stable and reliable performance. The structure is reasonable in design, small in size and light in weight, and is suitable for seismic exploration of strata and geological environments of different depths.
Its rugged design with pigtail construction ensures relability and data integrity in field conditions. Industry standard for cost effectiveness, quality and reliability.
Single geophone 28Hz Horizontal in waterproof land case with spike 75mm, with 1m leader cable,terminated with Split Spring clips connector.
Optional: geophone 10hz/14hz/28hz/40hz/60hz/100hz
20DX Geophone Response Curve and Phase Lag
Specification
All parameters specified here in are rated at a temperature 20℃±2℃ .
|
Type
|
EG-28-I (20DX Geophone 28Hz)
|
|
Natural frequency ( Hz )
|
28±5%
|
|
Open circuit damping
|
0.27
|
|
Damping with calibration shunt
|
0.552±5%
|
|
Calibration shunt resistance(ohm)
|
1000
|
|
Open circuit sensitivity (v/m/s)
|
39
|
|
Sensitivity with calibration shunt(v/m/s)
|
28±5%
|
|
Coil Resistance (ohm)
|
395±5%
|
|
Harmonic Distortion ( % )
|
≦0.2
|
|
Typical Spurious Frequency ( Hz )
|
≧350
|
|
Moving Mass ( g )
|
11
|
|
Max.coil excursion p-p (mm)
|
1.5
|
|
Max.tilt angle
|
20º
|
|
Element Diameter (mm)
|
25.4
|
|
Element Height (mm)
|
33
|
|
Element Weight (g)
|
100
|
|
Operating Temperature（℃）
|
-40℃ to +80℃
|
|
Warranty Period
|
3 years
|
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