Sper scientific 800046 Bedienungsanleitung

Indoor Air Quality Meter

800046

Instruction Manual

TABLE OF CONTENTS

Introduction 3

Features 4

Power Supply 5

LCD Display 6

Keypad 7

Measurement Procedures 8-12

CO2 Calibration 13

RH Calibration 14-15

Troubleshooting 16

PC Connection 17

CO2 Levels and Guidelines 18

Specifications 19

- 3 -

Poor air quality may cause tiredness, inability to

concentrate, and even illness (i.e., Sick Building

Syndrome). This instrument is ideal for monitoring indoor air

quality in crowded public spaces with potentially high levels

of CO2(carbon dioxide) such as offices, factories,

classrooms, hospitals and hotels. The same measurement

parameters can also be used to test air from HVAC

equipment.

Simultaneously backlit display of CO2(carbon dioxide)

level, humidity and air temperature, or the user may choose

a rotating display of dew point and wet bulb temperature

instead of air temperature. Also calculates TWA (Time

Weighted Average) and STEL (Short-Term Exposure Limit).

Simple user calibration of CO2and RH. Features audible

C02threshold alarms, min/max/ave, hold and a USB

computer interface. NDIR (non-dispersive infrared)

technology ensures long-term accuracy, stability and

reliability.

INTRODUCTION

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- 4 -

FEATURES

 Triple display of CO2 level, temperature and humidity

 Stable NDIR sensor for CO2detection

 Backlight for working in dark areas

 Audible CO2 warning alarm

 Battery and adapter power supply

 Easy manual calibration of CO2 and humidity

 PC connect via USB serial interface

 Statistics of weighted averages

- TWA (8 hours weighted average)

- STEL (15 minutes weighted average)

 Meter

 4 AA Alkaline Batteries

 Instruction Manual

 Hard Carrying Case

MATERIALS SUPPLIED

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- 5 -

POWER SUPPLY

The unit is powered by either 4 AA Alkaline Batteries

or an optional AC adapter (9V/1A output).

Battery Installation

1. Install the batteries into the battery compartment located

at the bottom-rear of the unit by pressing downward on

the battery compartment door’s locking-hinge and

remove the cover.

2. Install 4 AA Alkaline Batteries ensuring the polarity is

correct and the batteries are firmly seated.

3. Re-install the cover and ensure it snaps securely into

place.

Note…

When the AC Adapter is used, power supplied from the

batteries is disabled. The adapter does not charge the

batteries.

When the battery voltage is low, , Lob appears on LCD

and an alarm sounds. Under low battery conditions, the

meter’s CO2 sensor will not function properly, readings are

not displayed, and an audible beep indicates a failed CO2

measurement (press any key except the SET key to disable

the audible beeps). Replace the batteries or connect the

meter to the AC adapter.

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- 6 -

LCD DISPLAY

LCD Symbols

TWA

STEL

HOLD

MIN/MAX

AIR

WBT

°E (C/F)

AVG/ftm/m/s

Time weighted average (8 hours)

Short-term exposure limit

(15 minutes weighted average)

Readings are frozen

Minimum/Maximum readings

Low battery indicator

Dew point temperature

Air temperature

Wet bulb temperature

Relative humidity

Celsius/Fahrenheit

Measurement icons

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- 7 -

KEYPAD

Keypad functionality is defined as follows:

Turns meter On and Off.

Enters Setup mode.

Sets Non-Sleep mode with .

Exits Setup Page mode.

Enters CO2 calibration with .

Enters RH calibration with .

Freezes current readings.

Turns LCD Backlight On and Off.

Selects unit or increases Setup value.

Selects AIR, DP, or WBT temperature

displays.

Selects unit or decreases Setup value.

Activates MIN, MAX, STEL, and TWA

functions.

Saves settings.

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- 8 -

MEASUREMENT PROCEDURES

Air, Dew Point and Wet Bulb Temperature

Press SET to turn the meter on and off. The meter emits a

short beep, performs a 30-second countdown and then

displays current CO2, temperatures and humidity readings.

The meter starts acquiring measurements and updates its

readings every second. In environments where conditions

change (i.e., from low to high temperature), it takes the

meter’s sensor 30-seconds to respond for CO2 and 30

minutes for RH.

Note…

Do not hold the meter close to your face while taking

measurements because exhaling affects CO2levels.

Power On/Off

Press DP/WBT to switch temperature modes. The lower left

of the LCD display cycles from air temperature to dew point

temperature to wet bulb temperature.

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- 9 -

1. Press MODE for more than one second to turn the back-

light on/off.

MEASUREMENT PROCEDURES

Data Hold

1. Press HOLD to freeze readings. The “HOLD” icon will

appear in the left-top corner of the LCD. All current

readings are frozen, except STEL and TWA.

2. Press HOLD again to cancel the “HOLD” function and

resume measurement.

Backlight

Minimum, Maximum, Short-Term Exposure Limit and

Time Weighted Average

1. While in Normal mode, press MN/MX/AV to view min-

imum, maximum, and weighted average readings.

2. Press MN/MX/AV to display MIN, MAX, STEL, and TWA

readings in sequence and then return to Normal mode.

3. In MIN and MAX modes, the unit displays minimum and

maximum CO2 readings on the upper LCD and the AIR

and Dpor WB temperatures and humidity on the lower

LCD.

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- 10 -

MEASUREMENT PROCEDURES

4. In STEL and TWA modes, the main display indicates the

weighted average of CO2readings for the previous 15

minutes (STEL) and 8 hours (TWA). The lower displays

are current AIR, DP/WB temperatures and humidity.

Note…

When the meter is turned on for a period shorter than 15

minutes, STEL value readings will indicate the weighted

average of readings sampled since the unit was turned on.

This rule also applies to TWA when the meter is on for a

period shorter than 8 hours.

It takes at least 5 minutes to calculate STEL and TWA

readings. During the first 5 minutes, the LCD displays

“----.”

While all readings are frozen, STEL and TWA are updated

every 5 minutes.

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