Sper Scientific 850027 User Manual

Mini Environmental

Quality Meter

850027

7720 E. Redeld Rd. Suite #7,

Scottsdale, AZ 85260

Tel: [phone] | Fax: [phone]

Web: www.sperscientic.com

Mini Environmental
Quality Meter 850027

Copyright ©2012 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.

Sper Scientic
7720 E. Redeld Rd. Suite #7,
Scottsdale, AZ 85260
Tel: [phone]
Fax: [phone]
Web: www.sperscientic.com

2 3

TABLE OF CONTENTS

1. INTRODUCTION . . . . . 4

2. MATERIALS SUPPLIED. . 4

3. FEATURES . . . . . . . . 5

4. FRONT PANEL

DESCRIPTION . . . . . . 6

5. OPERATING

INSTRUCTIONS. . . . . . 7

Power on/off . . . . . . . .7

LCD backlight on/off . . . . 7

Mode selection . . . . . . 7

Unit selection . . . . . . . 9

Special attention for the
Humidity measurement . 11
Air ow measurement . . 11
Barometric measurement 12
Altitude measurement . . 15
Optional Pt 1000 probe . 18

Hold Function . . . . . . 18

REC (Record) function . 19
Auto power off disable . . 20

6. BATTERY

REPLACEMENT. . . . . 21

7. SPECIFICATIONS. . . . 22

8. WARRANTY. . . . . . . 28

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INTRODUCTION

For environmental testing
anywhere. Model 850027
combines 11 environmental test
functions into a single compact
unit. Features include touch­tone buttons, min/max and hold
functions. Comes ready to use
with wrist strap, instructions,
battery and soft carrying case.

MATERIALS SUPPLIED

Meter
Wristlet
CR 2032 DC 3V Battery
Soft Carrying Case

Optional Accessory:
850027P - Pt 1000 Temp. Probe

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FEATURES

• 11 professional environmental

instruments in 1

• Lightweight, ergonomic design

• Wristlet design provides extra

protection to the instrument

• Low-friction ball bearing

mounted impeller design
provides high accuracy at
high and low air velocity

• High precision humidity sensor

with fast response time

• Barometric sensor for precise

atmosphere and altitude
measurement

• Built-in microprocessor circuit

assures excellent performance
and accuracy

• Optional Pt 1000 Temp. probe

• Concise and compact buttons

arrangement for easy operation.

• Maximum and minimum

memory with recall

• Hold function

• °C/°F selection

FRONT PANEL DESCRIPTION

3. FRONT PANEL DESCRIPTION

7

4

1

6

8

2

3

5

12
11

9

10

1 HOLD button
2 Button (Power button)
3 REC button
4 LCD display
5 Wristlet
6 Light sensor
7 Anemometer vane
8 Humidity/Temperature sensor
8 Barometer sensor
10 Battery compartment cover
11 Buttons operation label
12 Pt 1000 ohm probe socket

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OPERATING INSTRUCTIONS

Power on/off

Button = Power Button

1. Power on: Press once to
turn meter on.

2. Power off: Press for > 3
seconds to turn meter off.

LCD backlight on/off

With the meter on, press
once. The LCD backlight will
light for 5 seconds, then shut
off automatically.

Mode selection

This meter offers 11
selectable modes:

a. Anemometer (Air velocity) /

Temp

b. Air ow (CMM, CFM)
c. Wind Chill
d. Humidity/Temp
e. Dew point Temp
f. Wet bulb Temp
g. Heat index

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h. Light
i. Barometric pressure
j. Altitude
k. Pt 1000 Temp. (optional)

With the meter on, press HOLD
continuously and the Display
will show the following texts
in sequence:

Display Mode text

An = Anemometer (Air velocity)

/Temp

AirFL = Air ow (CMM, CFM)
CHiLL = Wind chill
rH = Humidity/Temp
dP = Dew point Temp
_Et = Wet bulb Temp
HEAt = Heat index
LIgHt = Light
bAr = Barometric pressure
HigH = Altitude
Pt = Pt 1000 Temp. (optional)

When the display shows the
desired mode, release HOLD

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and the meter will set this mode
as the default.

Anemometer (Air Velocity)/
Temp Measurement

Unit Selection
REC button = Enter button

1. With the power on, press
REC for >3 seconds, the
display will show Unit.
Release REC, then press
to scroll through the available
scales. After the desired scale
is selected, press REC to
save as the default.

2. The next screen displays
“dCdF” with the current
temperature scale selection
(°C or °F). Press to select
the desired scale. Press REC
to save as the default.

Note…

When CHiLL, rH, dP, _Et and
HEAt are the selected mode,

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