Eproteca 850027 User manual

Mini Environmental

Quality Meter

850027

Instruction Manual

Mini Environmental Quality Meter 850027

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. Model 850027

combines 11 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

Optional Accessory:

850027P - Pt 1000

Temp. Probe

TABLE OF CONTENTS

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

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

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

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

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

Power on/o󰀨 . . . . . . . . . . . . . . . . . . . . . 6

LCD backlight on/o󰀨. . . . . . . . . . . . . . . . . 6

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

Unit selection . . . . . . . . . . . . . . . . . . . . 6

Special attention for the

Humidity measurement . . . . . . . . . . . . . . . 8

Air ow measurement . . . . . . . . . . . . . . . . 9

Barometric measurement . . . . . . . . . . . . . 10

Altitude measurement . . . . . . . . . . . . . . . 11

Optional Pt 1000 probe . . . . . . . . . . . . . . 13

Hold Function . . . . . . . . . . . . . . . . . . . 13

REC (Record) function . . . . . . . . . . . . . . 13

Auto power o󰀨 disable. . . . . . . . . . . . . . . 14

6. BATTERY REPLACEMENT . . . . . . . . . . . . 14

7. SPECIFICATIONS. . . . . . . . . . . . . . . . . 15

8. WARRANTY . . . . . . . . . . . . . . . . . . . . 20

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

• °F/°C 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 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

OPERATING INSTRUCTIONS

Power on/o󰀨

Button = Power Button

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

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

LCD backlight on/o󰀨

With the meter on, press once. The LCD backlight will

light for 5 seconds, then shut o󰀨 automatically.

Mode selection

This meter o󰀨ers 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

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 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 (°F or °C). 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. (°F or °C)

The selection scales for all modes are:

Measurement Scales

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

Temp. (Air velocity) °F/°C

Air ow CMM, CFM

Wind chill °F/°C

Temp. (Humidity) °F/°C

Dew point °F/°C

Wet bulb Temp. °F/°C

Heat index °F/°C

Light Lux, FC

Barometric Pressure hPa, mmHG, inHG

Altitude m, ft

Pt 1000 Temp. °F/°C

Air ow measurement

1. With the Power on, select Air ow mode (refer to page 7)

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

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.

Light measurement

For light measurement, hold the meter with the light sensor

on top, so it is not blocked by your hand. The display will

automatically reverse direction to be easily read.

Barometric pressure measurement

1. Actual location air pressure (absolute air pressure

value) measurement: with Power on, select “Barometric

pressure measurement” (refer to page 7, display will

show bAr text), now the meter is ready for actual air

pressure measurement (absolute air pressure value).

Note...

Actual air pressure in the measurement location changes

in response to two things: changes in altitude and

changes in atmosphere.

2. Sea level barometric pressure value measurement.

Press HOLD once, the Display will show the Hold

indicator then press REC continuously until the bottom

left of the display shows “m” or “ft”.

m = meter ft = feet

Use HOLD and to adjust the location altitude value.

When the location altitude value is set, pressing REC will

show the sea level barometric pressure value.

button = ▲button

HOLD button = ▼ button

REC button = Enter button

Table of contents

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