Sper scientific 850001 User manual

Pocket Moisture Meter
850001
Instruction Manual

2
TABLE OF CONTENTS
INTRODUCTION............................................ 3
FEATURES .................................................... 4
MATERIALS SUPPLIED ................................ 4
FRONT PANEL DESCRIPTION .................... 5
LCD DISPLAY ................................................ 6
SET UP .......................................................... 7
CALIBRATION ............................................. 10
MEASUREMENT PROCEDURES .............. 12
CARE AND MAINTENANCE ....................... 18
SPECIFICATIONS ....................................... 19
WARRANTY ................................................ 20

3
INTRODUCTION
This Sper Scientic Pocket Moisture Meter
(model 850001) displays the moisture content
on a large backlit LCD screen. This meter
combines the versatility of measuring many
di󰀨erent materials with the peace of mind
of an in-cap calibration check. The meter
simultaneously displays the moisture content
in multiple formats including percentage, low
and high, and a convenient bar graph that can
be seen at a distance. The meter’s pins are
minimally invasive to surfaces while still having
the strength to penetrate a variety of materials
including hardwoods, brick, and concrete.

4
FEATURES
• Reads 7 di󰀨erent building materials
• Minimally invasive penetration pins
• Rugged housing
• Hold button for maintaining readings
• Maximum and minimum values
• Backlight
• In-cap calibration check
• LCD that can withstand freezing temperatures
• Reads ambient temperature in °C or °F
• Reads ambient humidity and dew point
• Automatically calculates wet bulb value
MATERIALS SUPPLIED
• Pocket moisture meter
• Calibration cap
• Soft carrying case
• Instruction manual
• Two AAA batteries

5
FRONT PANEL DESCRIPTION
1. Calibration Sensors on top of cap
2. Calibrating Cap/protective cover
3. Power Button
4. Unit Selector
5. Backlight Button
6. Data Hold Button
7. Material Selector
8. Maximum/Minimum Button
9. Enter Button
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3
4
5
6
7
8
9

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1. Ambient Air Temperature
2. Temperature Units
3. Ambient Air Moisture
4. Moisture Units
5. Material Selected
6. Maximum and Minimum Values
7. Material Moisture Reading
8. Material Moisture Bar Graph
9. Data Hold Indicator
10. Low-Battery Icon
LCD DISPLAY
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1 2 3 4
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8
7

7
SET UP
Battery Installation
This meter uses two AAA batteries. To install
the batteries before rst use:
1. Unscrew the single screw in the center of the
back of the meter. This screw secures the
battery cover.
2. Remove the battery door by inverting the
meter and allowing the door to slide out.
3. Insert two new AAA batteries, ensuring
correct polarity.
4. Replace the battery cover and reinstall
the screw.
Replace the batteries when the low-battery icon
blinks on the LCD.
Note…
Before replacing the batteries, turn the meter o󰀨.

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Meter On and O󰀨
1. Press POWER to turn the meter on.
2. Press POWER to turn the meter o󰀨.
3. The meter will automatically turn o󰀨 after ten
minutes of inactivity.
Backlight
1. Press the backlight button to illuminate the
LCD screen.
2. The backlight will shut o󰀨 automatically when
the power is turned o󰀨.

9
Select Ambient Air Units
IMPORTANT:
The temperature and humidity readings represent
the temperature and humidity of the surrounding
air and do NOT represent the temperature or
humidity of the material being tested.
1. Press UNIT to toggle through temperature
and humidity unit options. The meter will
toggle through temperature settings rst
(°C or °F) followed by the humidity options
of Relative Humidity, Wet Bulb, and Dew
Point (%, WB, and TD).
2. Once the desired unit of measure appears
on the screen, press ENTER to select it. The
meter will return to normal measuring mode.
3. Press UNIT again to toggle to your preferred
humidity unit. Press ENTER to select it. The
meter will return to normal measuring mode.
4. The unit will remember your choice of
temperature units after turning o󰀨.

10
CALIBRATION
Check the meter periodically using its included
calibration cap. The meter can be checked before
each use or when switching between materials.
1. Turn the meter on and
ensure it is set to Material 1.
2. Remove the protective
cap and turn it upside
down to expose the
calibration sensors. See
image to the right.
3. Wipe pins with a cloth and
remove all debris.
4. Place the pins into the cap’s
calibration sensors. Wait up
to ten seconds. The meter
will display the number 35%
once calibration is complete.