Larson Davis EPS2116 Reference Manual

EPS2116

Outdoor Microphone & Preamplifier Protection

Larson Davis

EPS2116 Environmental

Protection System

Reference Manual

IEPS2116.01 Rev D i-2

Copyright

Copyright 2018, by PCB Piezotronics, Inc. This manual is copyrighted, with all rights reserved. The manual may not be copied
in whole or in part for any use without prior written consent of PCB Piezotronics, Inc.

Disclaimer

The following paragraph does not apply in any state or country where such statements are not agreeable with local law:

Even though PCB Piezotronics, Inc. has reviewed its documentation, PCB Piezotronics Inc. makes no warranty or representa­tion, either expressed or implied, with respect to this instrument and documentation, its quality, performance, merchantabil­ity, or fitness for a particular purpose. This documentation is subject to change without notice, and should not be construed as
a commitment or representation by PCB Piezotronics, Inc.

This publication may contain inaccuracies or typographical errors. PCB Piezotronics, Inc. will periodically update the material
for inclusion in new editions. Changes and improvements to the information described in this manual may be made at any
time.

Safety

If the equipment is used in a manner not specified by Larson Davis, the protection provided by the equipment may be
impaired.

Recycling

PCB Piezotronics, Inc. is an environmentally friendly organization and encourages our customers to be environmentally con­scious. When this product reaches its end of life, please recycle the product through a local recycling center or return the prod­uct to:
PCB Piezotronics, Inc.
Attn: Recycling Coordinator

1681 West 820 North
Provo, Utah, USA 84601-1341
where it will be accepted for disposal

Warranty

For warranty information, refer to our Terms and Conditions of Sale on our website,
www.larsondavis.com/TermsConditions.aspx.

i.1 Contact Larson Davis

Website

www.larsondavis.com

Worldwide Corporate Headquarters

Larson Davis - a PCB Piezotronics division
3425 Walden Avenue
Depew, NY 14043-2495 USA
Toll-free (in the US): 888-258-3222
Phone: [phone]
USA fax: [phone]
E-mail: [e-mail]

EPS2116 Reference Manual 1-1

Table of Contents

Module 1 Overview 1-1

1.1 Getting Started ................................................................................................................................. 1-1

1.2 What is the EPS2116? .......................................................................................................................1-1

Module 2 Assembly & Mounting 2-1

2.1 Overview ........................................................................................................................................... 2-1

2.2 Assembly .......................................................................................................................................... 2-1

Module 3 Operations 3-1

3.1 Calibration ....................................................................................................................................... 3-1

3.2 Windscreen Replacement ............................................................................................................... 3-3

3.3 Desiccant Replacement ...................................................................................................................3-5

Appendix A Technical Specifications A-1

A.1 Standards Met by EPS2116 ..............................................................................................................A-1

A.2 Included Accessories .......................................................................................................................A-2

A.3 Optional Accessories .......................................................................................................................A-2

A.4 Physical Specifications ....................................................................................................................A-2

A.5 EPS2116 Dimensions .......................................................................................................................A-3

A.6 Wind-induced Noise ......................................................................................................................... A-4

A.7 EPS2116 Corrections .......................................................................................................................A-5

A.8 Acoustical Response ........................................................................................................................A-8

EPS2116 Reference Manual Getting Started 1-1

Module 1 Overview

1.1 Getting Started ....................................................................................................................1-1

1.2 What is the EPS2116? ..........................................................................................................1-1

1.1 Getting Started

The EPS2116 is an environmental protection system accessory that
provides complete weather protection to your ½ inch microphone and
microphone preamplifier.

Before you begin working with the EPS2116, read an overview of its
capabilities and learn how to assemble, mount, and calibrate the
device to optimally perform your tasks.

1.2 What is the EPS2116?

The EPS2116 protects your microphone if it is exposed to wind, rain,
and humidity during the data collection period.

The EPS2116 can help accomplish your tasks:

• If you deploy the microphone in unpredictable weather, the
water-repellent membrane in the EPS2116 will protect it from
rain, sleet, and snow

• In high humidity environments, desiccant cartridges can be
inserted to preserve performance

• Birds are unable to land on your device and are effectively
deterred by the built-in bird-spike.

It works with back-vented microphones in particular, in which static air
pressure reaches the back of the microphone from an opening inside
the device. Moist air passes through the desiccant before reaching the
preamplifier and the back of the microphone.

The EPS2116 is intended to be connected on a threaded ¾ inch
conduit, 1½ inch (38mm) speaker stand, or similar mating connector
when in use. The whole assembly can be fastened on a mounting screw
for tripod use in the field. The EPS2116 is a necessary tool for
environmental exposure sound monitoring.

EPS2116 Reference Manual What is the EPS2116? 1-2

FIGURE 1-1 EPS2116

Birdspike

Windscreen

Top

Base

Adapter

EPS2116 Reference Manual Overview 2-1

Module 2 Assembly & Mounting

2.1 Overview ..............................................................................................................................2-1

2.2 Assembly ..............................................................................................................................2-1

2.1 Overview

The EPS2116 must be assembles and disassembled in a proper order to
not compromise the integrity of the protection devices. The EPS2116
comes shipped with the base and the top separate, and the windscreen
and birdspike together.

2.2 Assembly

The EPS2116 will come shipped with the top, birdspike, and
windscreen attached, along with the base and adapter together.

FIGURE 2-1 EPS21116 as shipped

The fist step will be to assemble the pieces so they are ready for the
cable and preamplifier. To do this, follow these steps:

CAUTION Do not pull the

windscreen off the birdspike
with an upward motion. If you
have to separate, pull the
windscreen down and the
birdspike up.

Step 1 Hold the top with one hand, grip the windscreen and

birdspike, at windscreen middle, gently twist apart.

EPS2116 Reference Manual Assembly 2-2

FIGURE 2-2 Grip windscreen to birdspike, unscrew

TAKE NOTE If using the

PRM2103, desiccant is not
required as the preamplifier
uses built-in heaters to
control humidity within the
microphone and preamplifier

Step 2 If using desiccant cartridges, insert four stacks of five into

the desiccant chambers in the base. Use one indicating
desiccant for the first use. And when you change them, use
the second indicating.

FIGURE 2-3 Desiccant install

Step 3 Screw top onto base.

FIGURE 2-4 Screw top onto base

EPS2116 Reference Manual Assembly 2-3

Step 4 Thread CBL222 up through adapter, base, and top. Then

attached preamplifier/microphone to cable.

FIGURE 2-5 Thread cable, add preamp/mic

Step 5 If you are mounting the EPS2116 to a tripod, pole, or other

device, screw the device onto the bottom at this step,
being careful not to twist the cable. Hold the EPS2116 still
and twist the mounting device up into the EPS2116.

Step 6 Push preamp/mic down until the mic is fully seated at the

top. Do not pull cable down.

FIGURE 2-6 Push microphone down

EPS2116 Reference Manual Assembly 2-4

Step 7 Grip windscreen in middle, holding birdspike, screw onto

assembly.

FIGURE 2-7 Windscreen

Once assembled, the EPS2116 can be left in place during calibration or
transport.

EPS2116 Reference Manual Calibration 3-1

Module 3 Operations

3.1 Calibration ...........................................................................................................................3-1

3.2 Windscreen Replacement ...................................................................................................3-3

3.3 Desiccant Replacement ...................................................................................................... 3-5

3.1 Calibration

To calibrate microphones in the EPS2116, follow these steps:

TAKE NOTE The microphone

and preamplifier can be
pulled up if needed to allow
the microphone to seat fully
inside the calibrator, though
this is not necessary when
using the CAL200 or CAL250.

Step 1 Remove birdspike and windscreen by unscrewing the

assembly.

FIGURE 3-1 Remove birdspike

Step 2 Place the calibrator (CAL250 shown) on the microphone by

pushing down gently while slightly twisting clockwise.

EPS2116 Reference Manual Calibration 3-2

FIGURE 3-2 CAL250 on mic

Step 3 Perform calibration as described in sound level meter

manual.

Step 4 Remove calibrator by pulling it up while slightly twisting it

counter-clockwise.

Step 5 Replace birdspike and windscreen.

FIGURE 3-3 Replace windscreen