Sper scientific 850026 User manual

Mini Environmental

Quality Meter

850026

Eastern Energy Co., Ltd.

40/4 Vitoondumri Rd., Banbueng

Banbueng, Chonburi, Thailand

Tel: 66-3844-611

[email protected].th

www.eastern-energy.com

Mini Environmental Quality Meter 850026

Sper Scientic

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 . . . . . . . . . . . . . . . . . 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 . 9

Air ow measurement . . . . . . . . . . . . . . . 10

Hold Function . . . . . . . . . . . . . . . . . . . 10

REC (Record) function . . . . . . . . . . . . . . 11

Auto power off disable. . . . . . . . . . . . . . . 11

6. BATTERY REPLACEMENT . . . . . . . . . . . . 12

7. SPECIFICATIONS. . . . . . . . . . . . . . . . . 12

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

INTRODUCTION

For environmental testing anywhere. Model 850026

combines 7 environmental test functions 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

FEATURES

• 7 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

• 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

FRONT PANEL DESCRIPTION

3. FRONT PANEL DESCRIPTION

Fig. 1

3-1 Hold button

3-2 Button ( Power button )

3-3 REC nutton

3-4 LCD display

3-5 Wristlet

3-6 Anemometer Vane

3-7 Humdity/Temp. sensor

3-8 Battery Compartment / Cover

3-9 Buttons operation label

3-10 Anemometer Temp. sensor

1 Hold button

2 Button (Power button)

3 REC button

4 LCD display

5 Wristlet

6 Anemometer vane

7 Humidity/Temperature sensor

8 Battery compartment cover

9 Buttons operation label

www.eastern-energy.com

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 7 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

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

When the display shows the desired mode, release

HOLD 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) below.

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, you may only change the temperature scale

setting. (°C or °F)

The selection scales for all modes are:

Measurement Scales

Air Velocity m/s, Km/h, mph,

knot, FPM

Temp. (Air velocity) °C/°F

Air ow CMM, CFM

Wind chill °C/°F

Temp. (Humidity) °C/°F

Dew point °C/°F

Wet bulb Temp. °C/°F

Heat index °C/°F

Note…

For the most accurate reading for the humidity/

Temp., Dew point Temp., Wet bulb Temp., Heat index

measurement, do not touch or block the humidity

sensor at any time with your hand.

Air ow measurement

1. With the Power on, select Air ow mode

(refer to page 9)

2. Set the measurement area dimension:

Press Hold once, the display will show HOLD

then press REC continuously until the lower left

of the Display shows m-2 or F-2

m-2 = meter square

F-2 = ft square

The unit of measure is determined by the

selected scale CMM or CFM

3. Use Hold and to adjust the air ow dimension

value. When the desired dimension value is set,

press REC to save as the default.

button = ▲button

Hold button = ▼ button

REC button = Enter button

Hold Function

Pressing Hold will freeze the current reading on the

display. The HOLD symbol will be displayed at the top

of the display window.

To release the Hold function, press Hold again, the

HOLD indicator will disappear and the current reading

will be displayed.

Table of contents

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