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Super Geophone - EST-20DN

Geophone, 1)EST-20DN10A 20DN10B 20DN14 20DN28 20DN35 20DN40, 2)High spurious frequency, wide brand, 3)Strong stability - more info check here: http://www.buymeasuringtools.com/Super-Geophone-10202420/

Quick Brief

Place of Origin: Hebei China (Mainland) Brand Name: EST Model Number: EST-20DN Power: Electronic Usage: Auto Testing Machine Feature: High sensitivity

Product Features:

Geophone

1)EST-20DN10A 20DN10B 20DN14 20DN28 20DN35 20DN40

2)High spurious frequency, wide brand

3)Strong stability

Business Terms:

Port: Tianjin

Minimum Order Quantity: 100 Piece/Pieces

Supply Ability: 8000 Piece/Pieces per Month

Payment Terms: L/C,T/T

Contact Supplier

Product Packagings & Delivery Terms:

Packaging Detail: Export Standard Packing

Delivery Detail: 30days

Specifications and Product Details:

Geophone

Parameters/Type	20DN10A	20DN10B	20DN14	20DN28	20DN35	20DN40
Natural Frequency	10+/-5%	10+/-5%	14+/-5%	28+/-5%	35+/-5%	40+/-5%
Open circuit damping	0.25+/-5%	0.271+/-5%	0.20+/-5%	0.60+/-5%	0.60+/-5%	0.681+/-5%
Dampling with shunt resistance	0.60+/-5%	0.60+/-5%	0.60+/-5%	-----	-----	-----
Intrinsic voltage sensitivity	0.288+/-5%	0.288+/-5%	0.288+/-5%	0.31+/-5%	0.325+/-5%	0.4+/-5%
Sensitivity with shunt	0.225+/-5%	0.228+/-5%	0.182+/-5%	-----	-----	-----
Coil resistance	375+/-5%	375+/-5%	375+/-5%	385+/-5%	560+/-5%	662+/-5%
Distortion(under)	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%
Typical spurious frequency	≥180	≥180	≥200	≥400	≥500	≥500
Suspending Mass	11.0+/-5%	11.3+/-5%	11.6+/-5%	10.2+/-5%	9.3+/-5%	9.3+/-5%
Case to coil Motiion P-P	2	2	2	1.6	1.8	1.8
Maintains specification to Tilt	20°	20°	20°	90°	90°	90°
Basic unit diameter	25.4	25.4	25.4	26	26	26
Basic unit high	32	32	32	32	32	32
operating temperature	–40 to +90°C	–40 to +90°C	–40 to +90°C	–40 to +90°C	–40 to +90°C	–40 to +90°C
Warranty(year)	3	3	3	3	3	3