Sper scientific 850025 Bedienungsanleitung

Mini Environmental

Quality Meter

850025

Mini Environmental Quality Meter 850025

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.

INTRODUCTION

For environmental testing anywhere. 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

TABLE OF CONTENTS

1. INTRODUCTION . . . . . . . . . . . . . . . . . 2

2. MATERIALS SUPPLIED. . . . . . . . . . . . . . 2

3. FEATURES . . . . . . . . . . . . . . . . . . . . 4

4. FRONT PANEL DESCRIPTION . . . . . . . . . . 5

5. OPERATING INSTRUCTIONS . . . . . . . . . . 6

Power on/off . . . . . . . . . . . . . . . . . . . . 6

LCD backlight on/off. . . . . . . . . . . . . . . . 6

Mode selection . . . . . . . . . . . . . . . . . . 6

Unit selection . . . . . . . . . . . . . . . . . . . 7

Special attention for the

Humidity measurement . . . . . . . . . . . . . . 7

Hold Function . . . . . . . . . . . . . . . . . . . 8

REC (Record) function . . . . . . . . . . . . . . 8

Auto power off disable. . . . . . . . . . . . . . . 9

6. BATTERY REPLACEMENT . . . . . . . . . . . . 9

7. SPECIFICATIONS. . . . . . . . . . . . . . . . . 10

8. WARRANTY . . . . . . . . . . . . . . . . . . . . 12

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

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

10 Anemometer temperature sensor

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 2 selectable modes:

a. Anemometer (Air velocity)/Temperature

b. Humidity/Temperature

With the meter on, press HOLD continuously and the

Display will show the following texts in sequence:

Display Mode text

An = Anemometer (Air velocity)/Temperature

rH = Humidity/ Temperature

When the display shows the desired mode, release

HOLD and the meter will set this mode as the default.

An Mode 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 rH is the selected mode, you may only adjust

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

Temp. (Humidity) °C/°F

Note…

For the most accurate humidity measurement, do not

touch or block the humidity sensor at any time with

your hand.

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.

REC (Record) function

The REC (Record) function will record and display

the maximum and minimum readings.

1. Start the Record function by pressing REC once.

The REC symbol will appear on the display.

2. With the REC symbol on the display:

a. Press REC once and the Max symbol will appear on

the display along with the current maximum value.

b. Press REC again, the MIN symbol will appear on

the display along with the current minimum value.

c. Clear the recorded MAX or MIN value from the

display by pressing Hold once. The MAX/MIN

symbols and their readings, will disappear from the

display. The meter will return to the REC function

and continue recording.

d. To exit REC function press REC button for >2 sec.

Auto power off disable

In order to prolong the battery life, this instrument has an

Auto Power Off function: the meter will turn off if no buttons

are pressed for approximately 10 minutes.

To disable the Auto Power Off function, press REC and

enter the record function (page 8). The Auto power off

function will be disabled until the record function is exited.

REPLACE BATTERY

1. When the LCD display shows symbol, it is time

to replace the battery. (Measurements may still be

made for several hours after the low battery

indicator appears.)

2. Open the Battery Compartment and remove

the battery.

3. Install the battery (CR2032) and replace the cover.

GENERAL SPECIFICATIONS

Display 8 mm LCD display

Measurement 1. Anemometer (Air velocity)

/Temperature

2. Humidity/Temperature

Operating Humidity Max. 80% RH

Operating Temp 0 ~ 50°C (32 ~ 122°F)

Over Input Display “- - - -”

Power Supply CR 2032 DC 3V battery

Power Consumption Approx. DC 5 mA

Weight 160 g (battery included)

Dim (HWD) 4.7" x 1.8" x 1.2" (120 x 45 x 20 mm)

Standard Accessories Instruction Manual, battery,

soft case

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