Note: Due to continuous process improvement, specifications are subject to change without notice.

This document is cleared for public release.

Wilcoxon Sensing Technologies

8435 Progress Drive

Frederick, MD 21701

USA

An Amphenol Company

www.wilcoxon.com

info@wilcoxon.com

Tel: +1 (301) 330-8811

Fax: +1 (301) 330-8873

SPECIFICATIONS

797L series

Low-frequency accelerometer

Accessories supplied: #12105-01 captive socket head (metric mounting available); calibration data

(level 3)

Key features

• Certified versions available for

use in hazardous areas (models

797LE, 797L-33, 797L-35)

• Ultra low noise electronics

• Manufactured in ISO 9001 facility

Sensitivity, ±5%, 25°C

500 mV/g

Acceleration range

10 g peak

Amplitude nonlinearity

1%

Frequency response:

±5%

±10%

±3 dB

0.6 - 850 Hz

0.4 - 1,500 Hz

0.2 - 3,700 Hz

Resonance frequency, typical

17 kHz

Transverse sensitivity, max

7% of axial

Temperature response:

–50°C

+120°C

–8%

+5%

Power requirement:

Voltage source

Current regulating diode

18 - 30 VDC

2 - 10 mA

Electrical noise, equiv. g:

Broadband  

2.5 Hz to 25 kHz

Spectral

2 Hz

  10 Hz

  100 Hz

12 µg

2.0 µg/√Hz

0.6 µg/√Hz

0.2 µg/√Hz

Output impedance, max

100 Ω

Bias output voltage

10 VDC

Grounding

case isolated, internally shielded

Temperature range

–50° to +120°C

Vibration limit

250 g peak

Shock limit

2,500 g peak

Electromagnetic sensitivity, equiv. g

5 µg/gauss

Sealing

hermetic

Base strain sensitivity

0.001 g/μstrain

Sensing element design

PZT ceramic / shear

Weight

148 grams

Case material

316L stainless steel

Mounting

1/4-28 captive socket head

Mating connector

R6 type

Recommended cabling

J9T2A

Connections

Function

Connector pin / cable

conductor color

power/signal

A / white

common

B / black

ground

shell / shield

98256 Rev.F4 05/24

1/4-28

mounting thread

1.65"

1.20"

0.25"

1.05"

dia.

2.15"

2 pin connector

safety wire hole

0.062 dia.

Certifications

Class I, II, III, T4

Div 1 Groups A, B,

C, D, E, F, G

Div 2 Groups A, B,

C, D, F, G

797LE

All 797L models

Class I, Div 1

Groups A, B, C, D

797L-33

797L-35

II 1 G

Ex ia IIC T4 Ga

Tamb: -50°C to 120°C

For Hazardous area installations the transducer must be

installed per 11537.

The model 797L-35 transducer must not be subjected to an

acceleration greater than 1200g and must be mechanically

protected so that it is not subjected to impacts greater than

2 J energy.

0.20”