Specifications

Model

Sn7C-8

Sn7C-10

Sn7C-14

Sn7C-28

Sn7C-35

Sn7C-40

Natural frequency(Hz)

8±2.5%

10±2.5%

14±2.5%

28±2.5%

35±2.5%

40±2.5%

Open circuit damping

0.337

0.25

0.2000

0.600±2.5%

0.681±5%

Damping with shunt resistor

0.600±2.5%

(2400Ω)

0.686±2.5%

(1000Ω)

0.600±2.5%

(640Ω)

Sensitivity(v/m/s)

28.8±2.5%

31.0±2.5%

32.5±2.5%

34.0±2.5%

Coil resistance(Ω)

375±2.5%

385±2.5%

560±2.5%

662±2.5%

Distortion(%)

<0.1%

Spurious frequency(Hz)

250

300

400

500

Moving mass(g)

11.3

11

11.6

10.2

9.3

Coil moving p-p(mm)

2.0

1.6

1.8

Diameter(mm)

25.4

26

Height(mm)

32.0

Warranty period(year)

(Geophone element)

3

Operating temperature (℃)

-40℃~+100