Sper scientific 850070 User manual

Mini Environmental
Quality Meter
850070
Instruction Manual
SPER
SCIENTIFIC LTD.

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TABLE OF CONTENTS
I. INTRODUCTION.............................. 2
II. PANEL DESCRIPTION.................... 3
III. OPERATING INSTRUCTIONS ........ 4
A. MEASUREMENT PROCEDURES... 4
1. Air Velocity Measurement ............. 4
2. Thermocouple Measurement........ 4
3. RH & Temperature Measurement. 5
4. Light Measurement ....................... 5
B. ADDITIONAL FUNCTIONS.............. 5
1. Data Hold ...................................... 5
2. Max/Min ........................................ 6
3. Automatic Shut Off........................ 6
4. Overload Indicator......................... 6
5. Battery Replacement .................... 6
IV. SPECIFICATIONS ........................... 7
V. PRECAUTIONS ............................... 8
VI. WARRANTY..................................... 8
I. INTRODUCTION
For environmental testing anywhere.
Combines a light meter, humidity
meter, thermometer & anemometer
into a single compact unit. Features
touch-tone buttons, max-min & hold
functions. Comes ready to use with
wrist strap, instructions, 9V battery,
& soft carrying case.

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II PANEL DESCRIPTION
1. POWER button
2. HOLD button
3. MAX/MIN button
4. UNIT/ZERO button
5. °C/°F, LUX/FT-CD button
6. FUNCTION button
7. Air Flow Sensor
8. Thermocouple Input Socket
9. RH Sensor
10. Light Sensor
11. LCD Display
12. Wrist Strap
7
9
11
2
3
5
6
10
12
8
1
4
Fig 1

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III. OPERATING INSTRUCTIONS.
A. MEASUREMENT PROCEDURES
Turn on the instrument by pressing the
POWER button (fig 1-1). See page 3 for
button locations. The full display appears,
then counts down to 00000. The meter
defaults to the last used unit of measure.
1. Air Velocity Measurement
•Press the FUNCTION button (fig 1-6) to
select the Anemometer function.
•Press the UNIT/ZERO button (fig 1-4)
to select the unit of measure: (knot, Km/
h, m/S, FPM, mph).
•Press the °C/°F button (fig 1-5) to
select Centigrade or Fahrenheit.
•Aim the AIR FLOW SENSOR (fig 1-7)
toward the source to be measured.
•Air velocity, temperature and the unit of
measure are displayed on the LCD.
2. Thermocouple Measurement
•Plug a Type K thermocouple probe
(not included) in the THERMOCOUPLE
INPUT SOCKET, making sure that the
that the polarity is correct.
•Press the FUNCTION button (fig 1-6) to
select the Thermocouple function
•Press the °C/°F button (fig 1-5) to select
Centigrade or Fahrenheit.
•Make contact between the probe and
the object to be measured.
•The temperature and the unit of meas-
ure are displayed on the LCD.
•Temperature differences between the
probe and the meter can cause inaccu-
rate results. If applicable, allow a few
minutes for the probe and meter to
adjust to the ambient temperature.

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3. RH Measurement & Temperature
•Press the FUNCTION button (fig 1-6) to
select the RH function.
•Press the °C/°F button (fig 1-5) to select
Centigrade or Fahrenheit.
•The RH results and ambient tempera-
ture are displayed on the LCD.
•When environmental changes occur,
such as moving the meter to a new
location, allow a few minutes for the
meter to stabilize.
4. Light Measurement
•Press the FUNCTION button (fig 1-6) to
select the Light function. The reading
appears inverted on the LCD.
•Press the LUX/FT-CD button (fig 1-5) to
select the unit of measure
•Point the LIGHT SENSOR (fig 1-10),
toward the light source to be measured.
•The results are shown on the LCD.
•The overload indicator ("- - - - ") is
displayed if the range is exceeded.
•The zero-point may drift because of
climate changes or when the battery
becomes weak. To reset the zero-
point, block out any light source by
covering the LIGHT SENSOR, then
press the UNIT/ZERO button (fig 1-4) .
B. ADDITIONAL FUNCTIONS
1. Data Hold: During the measuring
procedure, press the HOLD button (fig
1-2) to freeze the measured value. The
LCD will also display the word: "HOLD."
To exit, press the HOLD button again.

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2. Maximum / Minimum (Record)
•Press the MAX/MIN button (fig 1-3)
once. "REC" appears on the LCD to
indicate that the meter is in the Record
mode.
•Press the MAX/MIN button again.
"REC", "MAX" and the maximum
measurement appear on the LCD
•Press the MAX/MIN button again.
"REC," "MIN" and the minimum meas-
urement appear on the LCD.
•To delete the recorded maximum and
minimum values, press the HOLD
button (fig 1-2) once. When released,
the LCD displays only "REC".
•To exit this function, press and hold the
MAX/MIN button for at least 2 seconds,
until the display reverts to the current
reading.
3. Automatic Shut-Off
The instrument has an automatic shut off
function in order to prolong battery life.
After approximately 10 minutes without
activity (no buttons pushed), the meter will
automatically shut off. To disable this
feature, press the MAX/MIN button.(fig 1-3).
"REC" will appear on the LCD.
4. Overload Indicator
When the measurement is out of range,
"- - - -" appears on the display.
5. Battery Replacement
Replace the battery when the low
battery icon is displayed in the left
corner of LCD. In-spec measurements may
be made for several hours after the low
battery icon appears.

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IV. SPECIFICATIONS
Display 8 mm LCD display
Operating Humidity Max. 80% RH
Operating Temp. 0~50°C (32~122°F)
Power Supply 006p DC 9V battery
(heavy duty type)
Power Current Approx. DC 6.2 mA
Weight 5½ oz (160 g)
Dimensions 6” x 2½” x 1”
(150 x 65 x 30 mm.
Unit of Measure Range Res. Accuracy ºC ambient 0 ~ 50
0.1
±1.2ºC
ºF ambient 32 ~122 ±2.5ºF ºC Type K -100 ~
1300 ±(1% + 1ºC)
ºF Type K -148 ~
2372 ±(1% + 2ºF)
RH 10 ~ 95% ±6% 30 ~ 60RH otherwise ±8% Airspeed m/s 0.4 ~ 25.0
±(3% + 2d)
Airspeed km/h 1.4 ~ 90.0 Airspeed mile/h 0.9 ~ 55.9 Airspeed knots 0.8 ~ 48.6 Airspeed ft/min 80 ~ 4930 1±(3% + 20ft/min)
Lux 0 ~ 20,000 ±(5% + 4d) Foot Candle 0 ~ 2,000 0.1

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FIVE YEAR WARRANTY
Sper Scientific warrants this product
against defects in materials and workman-
ship for a period of five 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. In order to
obtain warranty service, simply ship the unit
postage prepaid to:
SPER SCIENTIFIC LTD.
7720 East Redfield, Suite 7
Scottsdale, Arizona 85260
[phone]
www.sperscientific.com
Please Note: The defective unit must be
accompanied by a description of the problem
and your return address.
Precautions: When not in use, store the meter
in its closed pouch to preserve light sensor
accuracy.
Rev. 04/21/04