COMPANY HEADER
Request Information
The Dytran series 3420 is a low profile, electrically isolated, high-frequency ring-shaped IEPE accelerometer offered in various cable lengths and an overall weight of 5 grams (less cable).

Units feature planar shear quartz sensing elements encased in a lightweight titanium housing. The mounting surface is electrically isolated from the body of the instrument by means of an anodized aluminum disc bonded to the bottom surface. When used with Model 6165 mounting screw, it provides electrical ground isolation. The connection to the DAQ is achieved via an integral cable. Series 3420 also features a miniature thru–hole mounting configuration, allowing the sensor to be turned 360° before securing for ease of installation.
Unit of Measure

Specifications

Brands

 N/A Dytran

Cable Length Tolerance

 N/A +2.5 ft-0 ft

Physical

Housing Material

 N/A Titanium

Maximum Weight (Less Cable)

 N/A 0.18 oz5.0 g

Mounting Provision

 N/A Screw

Connector Type

 N/A Integral Cable

Number of Thru Hole for Mounting Provision

 N/A 2

Housing Isolation

 N/A Base Isolated

Cable Type

 N/A 26AWG, FEP Jacket

Cable Length

 N/A 45 ft

Environmental

Operating Temperature Range

 N/A -60 to +250 ºF-51 to +121 ºC

Environmental Seal

 N/A Hermetic

Base Strain Sensitivity

 N/A 0.03 g/µε0.01 m/s²/µε

Peak Maximum Shock (±)

 N/A 19,620 m/s²2,000 g

Performance

Resonant Frequency

 N/A > 25 kHz

Maximum Transverse Sensitivity

 N/A 5 %

Peak Full Scale (F.S.) Range for ± 5 Volts (V) Voltage Output (±)

 N/A 500 g4,905 m/s²

Root-Mean-Square (RMS) Equivalent Electrical Noise Floor

 N/A 0.007 g0.07 m/s²

Frequency Response ±5%

 N/A 1 to 5,000 Hz

Note for Linearity

 N/A Measured using zero-based best straight-line method, % of F.S. or any lesser calibrated range in optimal lab conditions.

Sensitivity ±10%

 N/A 10 mV/g1.02 mV/m/s²

Note for Sensitivity ±10%

 N/A Measured at 100 Hz, 1 g RMS per ISA RP 37.2.

Frequency Response ±15%

 N/A 0.66 to 10,000 Hz

Full Scale (F.S.) Linearity

 N/A < 1 %

Note for Equivalent Electrical Noise Floor

 N/A Typical. Not to exceed 0.010 g RMS [0.10 m/s RMS].

Electrical

Power Supply Current

 N/A 2 to 20 mA

Note for Power Supply Current

 N/A Do not apply power to this device without current limiting, 20 mA MAX. To do so will destroy the integral IC amplifier.

Compliance Voltage Range

 N/A 18 to 30 V

Discharge Time Constant

 N/A 0.5 to 2.0 sec

Direct Current (DC) Bias Voltage

 N/A 7 to 12 V

Output Signal Polarity

 N/A Positive

Output Impedance

 N/A < 100 O

Minimum Electrical Isolation (Wire to Case)

 N/A 1 GO

Note

Note

 N/A
  1. All specifications are at room temperature unless otherwise specified.
  2. In the interest of constant product improvement, we reserve the right to change specifications without notice. It is the customer's responsibility to validate that a particular product with the properties described in the product specification is suitable for use in a particular application. Parameters provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer's technical experts.
Units on the line drawing are in inches, units in brackets are in millimeters.

Applications

Applications

 N/A Commercial HUMS Monitoring Environmental Stress Screening (ESS) General purpose vibration measurements in space constrained environments Vibration control

Supplied Accessories

Supplied Accessories

 N/A
  1. Mounting Screw, Model 6165, 2-56 UNC-2A x 0.375" long
  2. Accredited Calibration Certificate (ISO 17025)

Features

Features

 N/A 360º Cable Orientation Base Isolated Hermetic IEPE Low Profile Titanium

Additional Information

Additional Information

 N/A Units are hermetically sealed for reliable operation in high humidity and dirty environments, and are base–isolated to avoid EMI/ground loop interference.