DYTRAN 3218C DATA SHEET

D

60-2

0-0.2

2

3218C

R

35

kHz35

kHz900

3

60-1

0

0

100

0

200

0

300

0

500

0.5

O

°

C

L

2

2

2

2

/

PERFORMANCE SPECIFICATION

ACCELEROMETER, SINGLE AXIS DIFFERENTIAL,CHARGE MODE

This family also includes:

• HIGH TEMPERATURE OPERATION Model

• EXTREME STABILITY OVER TEMPERATURE

• HERMETICALLY SEALE

Please, refer to the performance specifications of the products in this family for detailed description

Supplied Accessories:

ENGLISH

SI

PHYSICAL 2) Accredited Calibration Certificate (ISO 17025)
Weight

accelerometer 5.5 oz 157 grams Notes:

accelerometer and cable

6.83 oz 195 grams [1] D38999/25YA98PA Series III connector. Mates With D38999/26WA98SA Connector

Size,(Mounting dia x Height x Length) Height 0.77 inches 19.43 mm [2] Actual sensitivity is given on a calibration certificate

Mounting dia

Ø1.19 inches Ø30.20 mm [3] Depends on the gain setting of the charge amplifier used

Length 18.10 - 18.60 inches 459.70 - 472.40 mm [4] Low frequency response is the function of the discharge time constant of the charge

Connector[1]

Material 304 L 304 L amplifier used. Please, Refer to the plot below for frequency response for different

Type 3 Pin 3 Pin time constants
Housing
Isolation Pins to Housing
Sensing Element

Material 304 L 304 L

10GΩ MIN

10GΩ MIN
Material LGT LGT
Mode Compression Compression

PERFORMANCE

Sensitivity [2]
Acceleration Range
Frequency Range, ±10%

esonance Frequency

Transverse Sensitivity

1.6 pC/g 0.16
[3] g peak [3]

[4] - 10,000 Hz [4]- 10,000 Hz 800 2

5% 5%

pC/m/s

m/s

peak

Insulation Resistance (75°F) 10 GΩ 10 GΩ
Insulation Resistance (400°F)
Insulation Resistance (700°F)
Insulation Resistance (900°F)

perating Temperature

apacitance, pin to pin
Unbalance between pins
Linearity

10 GΩ 10 GΩ

3.5 MΩ 3.5 MΩ

485 kΩ 485 kΩ

-60 to 900 °F -51 to 482

C
80 pF 80 pF
<2 pF <2 pF

1% 1%

1) Model 6535 mounting screw (3)

TYPICAL TEMPERATURE RESPONSE

30

30

20

20

10

10

-10

2

-10

-20

-20

-30

-30

SENSITIVITY DEVIATION (%)

SENSITIVITY DEVIATION (%)

TYPICAL TEMPERATURE RESPONSE

0

0

-60 132 324 516 708 900

-60 132 324 516 708 900

-

75 0

300 0.5
500 0.7

TEMPERATURE (°F)

TEMPERATURE (°F)

SENSITIVITY DEVIATION (%)

SENSITIVITY DEVIATION (%)

DOC NO

PS3218C

REV B,ECN5889,06/23/09

TYPICAL LOW FREQUENCY RESPONSE

TYPICAL LOW FREQUENCY RESPONSE

10

10

5

5

0

0

-5

-5

-10

-10

-15

-15

-20

-20

-25

-25

-30

-30

0.1 1 10 100

0.1 1 10 100
FREQUENCY (Hz)

FREQUENCY (Hz)

-

TC 1

TC 1
SEC

SEC

TC

TC

0.7

0.7
SEC

SEC

TC

TC

0.4

0.4
SEC

SEC

TC

TC

0.1

0.1
SEC

SEC

ENVIRONMENTA

Maximum Vibartion
Maximum Shock
Seal

1000 g peak 9810
2000 g peak 19620

HERMETIC HERMETIC

Magnetic Sensitivity at 100 Gauss 0.00007 g/Gauss 0.00069
Base Strain Sensitivity

0.05 g/µε 0.4905

21592 Marilla Street, Chatsworth, California 91311 Phone: [phone] Fax:[phone] www.dytran.com
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m/s

m/s

m/s
m/s

Gauss

με

Units on the line drawing are in inches, units in brackets are in millimeters. Refer to document 127-3218C for more information