Sper scientific 850069 User manual

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Environmental Quality Meter
with Sound
850069
Instruction Manual

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Environmental Quality Meter with Sound 850069
Copyright ©2009 by Sper Scientic
ALL RIGHTS RESERVED
Printed in the USA
The contents of this manual may not be reproduced
or transmitted in any form or by any means electronic,
mechanical, or other means that do not yet exist or may
be developed, including photocopying, recording, or any
information storage and retrieval system without the
express permission from Sper Scientic.

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TABLE OF CONTENTS
INTRODUCTION ................................................................ 4
MATERIALS SUPPLIED ...................................................... 6
FEATURES ......................................................................... 6
UNIT DESCRIPTION .......................................................... 7
LCD DISPLAY ..................................................................... 8
KEYPAD ............................................................................. 9
SOUND CALIBRATION ..................................................... 10
MEASUREMENT PROCEDURES .................................... 12
BATTERY REPLACEMENT .............................................. 20
TROUBLESHOOTING ...................................................... 21
SPECIFICATIONS ............................................................. 22
OPTIONAL ACCESSORIES .............................................. 25
ENVIRONMENT REFERENCES ...................................... 26
WARRANTY ...................................................................... 28

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INTRODUCTION
The Sper Scientic Environmental Quality Meter with Sound
850069 is a 5-in-1 instrument that functions as a:
• Sound-Level Meter—measures sound levels simulating
the human ear using the A Weighting and Fast Time
Weighting to meet the International Electrotechnical
Commission (IEC) standards (61672, class 2).
• Light Meter—measures light using an exclusive
photodiode and color-correction-lter, light sensor. Meets
the Commission Internationale de l’Eclairage (CIE)
photopic standards.
• Anemometer—measures wind-speed using a low-friction,
ball bearing wheel design to provide exceptional accuracy.
• Hygrometer—measures relative humidity using a high-
precision humidity sensor with fast response time.
• Thermometer—measures temperature using standard
Type-K (NiCr-NiAl) thermocouple input jack for all Type-K
probes (optionally available).

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The rugged, light-weight and portable design of the
Environmental Quality Meter allows you to use it almost
anywhere to monitor elements and maintain a healthy and
safe environment.
Recommended exposure limits for the various elements
have been set through government organizations such
as the US Occupational Safety and Health Administration
(OSHA) and the National Institute for Occupational Safety
and Health (NIOSH).
Current recommendations and guidelines are available
through these organizations, as well as many others. (Refer
to Environment References page 26.)

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MATERIALS SUPPLIED
• Meter
• Soft Carrying Case
• Six AAA 1.5 V Batteries
• Instruction Manual
FEATURES
• Multi-Purpose 5-in-1 Meter
• Rugged, Light-Weight, and Portable
• Accurate and Easy-to-Use
• One-Button Control
• Hold
• Minimum and Maximum Recall
• Multi-Channel Display
• Tripod Mountable
• Zero O󰀨set Adjustment
• Easy Calibration

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Sound
Sensor
Light
Sensor
Air Flow
Sensor
Easel Stand
(Back of Unit)
LCD
Displa y
Key
Pad
Humidity Sensor
(Back of Unit)
RS232
&
DC 9V
Power
Adapter
Ports
(Side of Unit)
Temperature Thermocouple
Input Port
(Bottom of Unit)
Tripod Screw
and Battery
Compartment
(Back of Unit)
UNIT DESCRIPTION

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LCD DISPLAY
Sound–Level Measurement Units
dB
The decibel (dB) is a logarithmic unit of
measure that expresses the power or
intensity of an acoustic sound.
Light–Level Measurement Units
Lux
Ft-cd
x10
Both Lux and Ft-cd (Foot Candle)
measure luminance.
Lux = lumens per square meter.
Ft-cd = lumens per square foot .
X10 = Value displayed is 1/10 the value.
Air Velocity Measurement Units
ft/min
m/S
km/h
MPH
knots
Feet per minute
Meters per second
Kilometers per hour
Miles per hour
Nautical miles per hour
Relative Humidity Measurement Units
%
Relative humidity (RH) is a term used to
describe the amount of water vapor that
exists in the air and displays as a
percentage.
Temperature Measurement Units
°C/°F Represents the temperature in either
Celsius or Fahrenheit degrees.
Record Mode and Hold Indicators
REC
MAX
MIN
HOLD
Meter is operating in Record Mode.
Maximum value recorded.
Minimum value recorded.
Meter display is in Hold Mode.
LCD DISPLAY

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Enters Record Mode
Displays recorded min/max values
KEY PAD
Turns the unit on/o󰀨
Freezes current measurement value
Clears recorded min/max values
Selects measurement mode
Changes unit of measure for light meter
and temperature scale
Changes unit of measure for anemometer
Calibrates the light sensor

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SOUND CALIBRATION
This procedure requires an optional 2-Point Acoustical Cali-
brator (850016):
1. Using the directions that accompany the Acoustical Cali-
brator, ensure that the calibrator is operational and is
equipped with the ½” microphone adapter.
2. Insert meter’s sound probe into the calibrator.
3. Turn the calibrator on and select 94 dB.
4. Turn the meter on and use the FUNCTION button to se-
lect the Sound–Level meter function.
5. Press HOLD and MAX/MIN simultaneously for 3 seconds
and release.
The meter enters Calibration Mode and displays two values.
The upper value is the calibration point. The lower value is
the current reading.

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Note…
To calibrate the sound meter, you must change the current
reading to match the calibration point of the acoustical cali-
brator (e.g., 94 dB). Press POWER at any time to cancel the
calibration procedure.
6. Press °C/°F to increase the calibration point value or
press Function to decrease the value to match the desired
calibration setting.
7. Press MAX/MIN to accept the calibration point. The meter
display ashes to indicate that the meter is ready to save
the calibration data.
8. Press UNIT to save the calibration data, exit Calibration
Mode, and resume measurement.
9. To calibrate the Sound-Level meter to a second set-point
(114 dB), set the Acoustical Calibrator to 114 dB and re-
peat steps 4 through 7.
Note…
The 114 dB calibration point displays as a double-digit deci-
mal instead of the full value (i.e., 13.8 instead of 113.8).

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MEASUREMENT PROCEDURES
Sound-Level Measurement
1. Ensure that the sound sensor at the top of the meter is
free from obstruction.
2. Hold the meter with the sound sensor pointing toward the
noise source and press POWER to turn the meter on.
3. Press FUNCTION continuously until the meter displays
the dB sound-level measuring unit.
4. The meter measures the sound level of the surrounding
noise and displays the value in decibels.
Light-Level Measurement
1. Press POWER to turn the meter on.
2. Press FUNCTION until the meter displays the Lux or Ft-cd
light-level measuring unit.
3. Press LUX/FT-CD to select between Lux and Ft-cd.
4. To ensure measurement accuracy, calibrate the light
meter using the Zero-O󰀨set adjustment feature.
5. Cover the light sensor to block any light from registering
on the meter. Press ZERO to calibrate the meter to zero.
The meter displays the light-level value as 0 and is ready
to measure light, even in low-lit and dark areas.
6. Uncover the light sensor and ensure that the light sensor
on the front of the meter is pointing toward the lumination
subject and is free from obstruction.
7. The meter measures the light level of the surrounding
environment and displays the reading.

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When measuring intense light, the meter displays x10 to
indicate that the value displayed is 1/10 the actual value.
Air-Velocity Measurement
1. Press POWER to turn the meter on.
2. Continuously press FUNCTION until the meter displays
the wind-speed and ambient temperature measuring units
(ft/min, m/S, km/h, MPH, knots, °C, °F).
Because the anemometer readings are taken while
holding the meter upside-down, the values display upside-
down on the LCD (180° from the other function displays).
3. Holding the meter upside-down, continuously press UNIT
to select the desired wind-speed measuring unit.
4. Press °C/°F to select between a Celsius (°C) and
Fahrenheit (°F) temperature reading.
5. Ensure that the air ow sensor is free from obstruction and
face the air-ow sensor in the direction of the wind.
6. The meter measures the wind-speed and ambient
temperature of the surrounding environment and displays
the value.

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Relative Humidity Measurement
1. Press POWER to turn the meter on.
2. Continuously press FUNCTION until the meter displays
the relative humidity and ambient temperature measuring
units (%RH, °C, °F).
Because the hygrometer readings are taken while
holding the meter upside-down, the measurement values
display upside-down on the LCD (180° from the other
function displays).
3. Holding the meter upside-down, press °C/°F to select
between a Celsius (°C) and Fahrenheit (°F)
temperature reading.
4. Ensure that the humidity sensor is free from obstruction.
5. The meter measures the relative humidity and ambient
temperature of the surrounding environment and displays
the value.
Note…
When moving the meter to a new environment, it may take a
few minutes for the humidity readings to stabilize.

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Thermocouple Temperature Measurement
This procedure requires an optional Type-K
thermocouple probe.
1. Press POWER to turn the meter on.
2. Ensuring correct polarity (+ –), carefully plug a Type-K
thermocouple probe into the Temperature Thermocouple
Input Port at the bottom of the meter.
Temperature di󰀨erences between the probe and the meter
may cause inaccurate results. Allow a few minutes for the
probe and meter to adjust to ambient temperature.
3. Continuously press FUNCTION until the meter displays
the temperature measuring unit (°C, °F).
4. Press °C/°F to select between a Celsius (°C) and
Fahrenheit (°F) temperature reading.
5. Make contact between the thermo-couple sensor probe
and the object or area you want to measure.
6. The meter measures the temperature of the object or area
and displays the value.

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Hold Mode Selection
1. Press POWER to turn the meter on.
2. Using the FUNCTION button, select your desired
measurement function (Sound, Light, Air-Velocity, Relative
Humidity, or Temperature).
3. When a value displays that you want to retain, press HOLD.
The meter freezes the current measurement value and
discontinues measurement while in Hold Mode.
4. Press HOLD again to exit Hold Mode and
resume measurement.
MEASUREMENT PROCEDURES

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Record Mode & Auto-O󰀨 Selection
To save battery life, the Environmental Quality Meter turns
o󰀨 automatically after 10 minutes of inactivity. To override
this feature:
1. With the meter turned on, press MAX/MIN. The meter
displays REC, disables the Auto-O󰀨 feature, and enters
Record Mode.
2. While the meter displays REC, you can view both the
maximum and minimum measured values by pressing the
MAX/MIN button.
The MAX/MIN button toggles between the maximum and
minimum measured values.
MEASUREMENT PROCEDURES

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3. To clear the MAX/MIN values and continue recording,
press HOLD. The meter clears the previously recorded
MAX/MIN values and enters Record Mode.
4. To exit the Record Mode, press and hold MAX/MIN for
2 seconds.
The meter exits Record Mode, displays the current
reading value, and resets to automatically turn o󰀨 after
10 minutes of inactivity.

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Hands-Free Operation
The Environmental Quality Meter includes both a built-in mini-
easel and a tripod screw-mount for easy hands-free monitoring.
Field Tripod (840093) is available as optional accessories
and attach simply via the screw-mount located on the back
of the meter.
To use the easel:
1. Lift up the easel’s bottom edge and extend out using the
easel’s hinge.
2. Using the mini-easel, you can stand the meter on any
stable surface for hands-free, long-term monitoring.
3. When nished monitoring, lightly collapse the easel back
into place.

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BATTERY REPLACEMENT
1. If the meter displays the low battery icon , press
POWER to turn the meter o󰀨.
2. Use a small Philips screwdriver to unscrew the two screws
that secure the battery compartment and remove the cover.
3. Remove the old batteries and replace with 6 new AAA
batteries, ensuring correct polarity.
4. Replace the compartment cover and re-secure using the
two Philips-head screws.
Note…
The battery life is greater than 1000 hours when using alkaline
batteries (250 hours when using general purpose batteries).