Sper Scientific 850025 User Manual

Mini Environmental

Quality Meter

850025

7720 E. Redeld Rd. Suite #7,

Scottsdale, AZ 85260

Tel: [phone] | Fax: [phone]

Web: www.sperscientic.com

Mini Environmental
Quality Meter 850025

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 . . . . . . . . 8

Special attention for the
Humidity measurement . . . 9

Hold Function . . . . . . . 10

REC (Record) function . . 10
Auto power off disable . . . 11

6. BATTERY

REPLACEMENT. . . . . . 12

7. SPECIFICATIONS. . . . . 13

8. WARRANTY. . . . . . . . 16

3

INTRODUCTION

For environmental testing
anywhere. Model 850025
combines an anemometer,
humidity meter and
thermometer into a single
compact unit. Features include
touch-tone 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

4 5

FEATURES

• 3 professional environmental

instruments in 1: Air velocity,
Humidity and Temperature

• 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

• Built-in microprocessor circuit

assures excellent performance
and accuracy

• Concise and compact

buttons arrangement for
easy operation.

• Maximum and minimum

memory with recall

• Hold function

• °C/°F selection

5