Sper Scientific 850016 User Manual

2 POINT ACOUSTICAL CALIBRATOR

850016

INSTRUCTION MANUAL

SPER
SCIENTIFIC

INTRODUCTION

Calibration is suggested by OSHA to ensure good sampling
practices. The 850016 Sper Scientific 2-Point Acoustical
Calibrator is designed to calibrate Sper Scientific digital
sound meters, or any other sound meter that is user­calibrated and has a ½" or 1" microphone. Features
2-point calibration at 94 dB and 114 dB, and a low battery
indicator. Comes with instructions, 9V battery and a
carrying case.

INSTRUMENT DESCRIPTION

1 - 1" Microphone Insertion Socket

2 - 1/2" Microphone Adapter

3 - Power Indicator

4 - 94dB/114dB/Off
Slide Switch

5 - Battery
compartment
(lift out for access)

6 - Battery
compartment
ring

1

2

3
4

5

6

OPERATING PROCEDURE

Note: For accurate calibration, background noise should
be less than 10 dB.

• Determine the sound meter's microphone size.

• Use the 1/2" Microphone Adapter (2) when

calibrating a 1/2" diameter microphone.

• When calibrating a sound meter with a 1"
microphone, pull off the 1/2" Microphone

Adapter (2) to use the 1" Microphone Insertion
Socket (1).

• Fully insert the sound meter's microphone into the
insertion socket.

• Use the 94dB/114dB/Off Slide Switch (4) to turn
the calibrator on and select either 94 dB or 114 dB.

• Be sure the sound meter is set to an appropriate
scale to measure a matching sound of 94 dB or
114 db.

• Adjust the sound meter according to it's calibration
instructions.

Unfold for Battery Replacement,

Specifications and Warranty information.

BATTERY INSTALLATION AND REPLACEMENT

• Replace the battery if the Power Indicator (3) does
NOT light when 94dB/114dB/Off Slide Switch (4)
is in the 94 dB or 114 dB position and/or when there
is no audible tone.

• Unscrew the Battery Compartment Ring (5).

• There are wires connected to the Battery Compart-

ment (6), so SLOWLY lift the center to access the
battery.

• Insert a fresh 9V Alkaline battery.

• Replace the Battery Compartment (6) and tighten

the Battery Compartment Ring (5).

• A fresh Alkaline battery should power your calibrator
for approximately 20 hours of use.

• Remove the battery if the calibrator will not be in
use for a long period of time.

• Tampering with the internal circuitry will void your
warranty.

SPECIFICATIONS

• Standard: ANSI S1.40-1984 and IEC942 1988 Class 2

• Output Sound Level: 94 dB and 114 dB re 20 uPA

under reference

• Output Frequency: 1kHz ±4%

• Accuracy: ± 0.5 dB

• Operating Environment:

• 32~104°F (0~40°C)

• Altitude up to 2000 meters

• 10~70% RH

• Storage Environment:

• 14~140°F (-10~60°C)

• 10~90% RH

• Test Conditions

• 20°C

• 65% RH

• Atmospheric Pressure: 1013 mbar

• Dimensions: 1

7/8" x 5", 48 x 125 mm

• Weight: 10 oz, 285g

WARRANTY

Sper Scientific warrants this product against defects in
materials and workmanship for a period of 5 years from
the date of purchase, and agrees to repair or replace
any defective unit without charge. If your model has
since been discontinued, an equivalent Sper Scientific
product will be substituted if available. This warranty
does not cover damage resulting from accident, misuse,
or abuse of the product. To obtain warranty service,
ship the unit postage prepaid to:

SPER SCIENTIFIC LTD

7720 E Redfield Rd, Suite 7

Scottsdale, AZ 85260 USA

WWW.SPERSCIENTIFIC.COM

[e-mail]

The defective unit must be accompanied by a descrip­tion of the problem and your return address. Register
your product online or return your warranty card within
10 days of purchase.

REV. 5/11/06