Sper scientific 850070 User manual

Mini Environmental
Quality Meter
850070

2
Mini Environmental Quality Meter 850070
Copyright ©2015 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.
TABLE OF CONTENTS
1. INTRODUCTION . . . . . . . . . . . . . . . . . 3
2. PANEL DESCRIPTION. . . . . . . . . . . . . . 3
3. MEASUREMENT PROCEDURES. . . . . . . . 4
4. ADDITIONAL FUNCTIONS . . . . . . . . . . . 6
DATA HOLD. . . . . . . . . . . . . . . . . . . . 6
MAX/MIN . . . . . . . . . . . . . . . . . . . . . 6
AUTO SHUTOFF . . . . . . . . . . . . . . . . . 6
OVERLOAD INDICATOR . . . . . . . . . . . . 7
5. BATTERY REPLACEMENT . . . . . . . . . . . 7
6. SPECIFICATIONS . . . . . . . . . . . . . . . . 7
7. WARRANTY . . . . . . . . . . . . . . . . . . . 8

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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.
PANEL DESCRIPTION
1. Air Flow Sensor
2. Thermocouple Input
Socket (on left)
3. RH Sensor (on right)
4. LCD Display
5. Key Pad (L to R)
Power Button
Hold Button
Max/Min Button
Unit/Zero Button
°C/°F, Lux/Ft-cd Button
Function Button
6. Wrist Strap
7. Light Sensor
1
2
3
4
5
6
7

4
OPERATING INSTRUCTIONS
Measurement Procedures
Turn on the instrument by pressing the POWER button. 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.
Air Velocity Measurement
1. Press the FUNCTION button to select the Anemometer.
2. Press the UNIT/ZERO button to select the unit of measure:
(knot, Km/h, m/S, FPM, mph).
3. Press the °C/°F button to select Centigrade or Fahrenheit.
4. Aim AIR FLOW SENSOR toward the source to be measured.
5. Air velocity, temperature and the unit of measure are
displayed on the LCD.
Thermocouple Measurement
1. Plug a Type K thermocouple probe (not included) in the
THERMOCOUPLE INPUT SOCKET, making sure that the
that the polarity is correct.
2. Press the FUNCTION button to select the Thermocouple.
3. Press the °C/°F button to select Centigrade or Fahrenheit.
4. Make contact between the probe and the object to be
measured.
5. The temperature and the unit of measure are displayed.
6. Temperature di󰀨erences between the probe and the meter

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can cause inaccurate results. If applicable, allow a
few minutes for the probe and meter to adjust to the
ambient temperature.
RH Measurement & Temperature
1. Press the FUNCTION button to select the RH function.
2. Press the °C/°F button to select Centigrade or Fahrenheit.
3. The RH results and ambient temperature are displayed.
4. When environmental changes occur, such as moving the
meter to a new location, allow a few minutes for the meter
to stabilize.
Light Measurement
1. Press the FUNCTION button to select the Light function.
The reading appears inverted on the LCD.
2. Press the LUX/FT-CD button to select the unit of measure.
3. Point the LIGHT SENSOR , toward the light source to
be measured.
4. The results are shown on the LCD.
5. The overload indicator (“- - - - “) is displayed if the range
is exceeded.
6. 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.
Note... To preserve the accuracy of the light sensor, store the
meter in its closed pouch.

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ADDITIONAL FUNCTIONS
Data Hold
During the measuring procedure, press the HOLD button to
freeze the measured value. The LCD will also display the
word: “HOLD.” To exit, press the HOLD button again.
Maximum / Minimum (Record)
1. Press the MAX/MIN button once. “REC” appears on the
LCD to indicate that the meter is in the Record mode.
2. Press the MAX/MIN button again. “REC”, “MAX” and the
maximum measurement appear on the LCD
3. Press the MAX/MIN button again. “REC,” “MIN” and the
minimum measurement appear on the LCD.
4. To delete the recorded maximum and minimum values,
press the HOLD button once. When released, the LCD
displays only “REC”.
5. To exit this function, press and hold the MAX/MIN button for
≥ 2 seconds, until the display reverts to the current reading.
Automatic Shut-O󰀨
The instrument has an automatic shut o󰀨 function in order to
prolong battery life. After approximately 10 minutes without
activity (no buttons pushed), the meter will automatically shut
o󰀨. To disable this feature, press the MAX/MIN button. “REC”
will appear on the LCD.

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Overload Indicator
When the measurement is out of range, “- - - -” appears on
the display.
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.
SPECIFICATIONS
Unit of Measure Range Res. Accuracy
ºC ambient 0 to 50
0.1
±1.2ºC
ºF ambient 32 to122 ±2.5ºF
ºC Type K -100 to 1300 ±(1% + 1ºC)
ºF Type K -148 to 2372 ±(1% + 2ºF)
RH 10 to 95% ±6% 30 to 60RH
otherwise ±8%
Airspeed m/s 0.4 to 25.0
±(3% + 2d)
Airspeed km/h 1.4 to 90.0
Airspeed mile/h 0.9 to 55.9
Airspeed knots 0.8 to 48.6
Airspeed ft/min 80 to 4930 1±(3% + 20ft/min)
Lux 0 to 20,000 ±(5% + 4d)
Foot Candle 0 to 2,000 0.1

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WARRANTY
Sper Scientic warrants this product against defects in materials
and workmanship for a period of ve (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 Scientic product will be substituted if available.
This warranty does not cover probes, batteries, battery leakage,
or damage resulting from accident, tampering, misuse, or abuse
of the product. Opening the meter to expose its electronics will
void the warranty.
To obtain warranty service, ship the unit postage prepaid to:
SPER SCIENTIFIC LTD.
8281 E. Evans Rd., Suite 103
Scottsdale, AZ 85260
The defective unit must be accompanied by a description of the
problem and your return address. Register your product online
at www.sperwarranty.com within 10 days of purchase.
rev 7/5/2017
Display 8 mm LCD display
Operating Humidity Max. 80% RH
Operating Temp. 0 to 50°C (32 to 122°F)
Power Supply 006p DC 9V battery (heavy duty type)
Power Current Approx. DC 6.2 mA
Dimensions 6" × 2½" × 1" (152 × 64 × 25 mm)
Weight 5.3 oz (150 g)