General Tools General Tools VOC08 Manual

DATA LOGGING

VOC METER

HARDWARE MANUAL

VOC08

99 Washington Street
Melrose, MA 02176

Phone [phone]
Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 –4

What's in the Package . . . . . . . . . . . . . . . . . . . . . . . . 4

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5 –6

Setup Instructions . . . . . . . . . . . . . . . . . . . . . . . . 6 –7

Install Batteries . . . . . . . . . . . . . . . . . . . . . . . 6 –7

Operating Instructions . . . . . . . . . . . . . . . . . . . . 7 – 10

Standalone Mode . . . . . . . . . . . . . . . . . . . . 7 – 10

Data Logging Mode
(see VOC08 Software Manual on mini-disc
or online at generaltools.com)

Calibration Procedure . . . . . . . . . . . . . . . . . . . 10 – 11

VOC Zero Adjustment . . . . . . . . . . . . . . . . 10 – 11

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 11 – 12

Operating & Maintenance Tips . . . . . . . . . . . . . 12 – 14

Offsetting Sensor Drift . . . . . . . . . . . . . . . . 13 –14

Warranty Information . . . . . . . . . . . . . . . . . . . . 14 – 15

Return for Repair Policy . . . . . . . . . . . . . . . . . . . . . . 15

2

INTRODUCTION

Thank you for purchasing General Tools & Instruments’
VOC08 Data Logging VOC Meter. Please read this user’s
manual carefully and thoroughly before using the product.

The VOC08 is an easy-to-use handheld instrument for making
ballpark measurements of mixed-gas volatile organic
compound (VOC) levels as part of an indoor air quality (IAQ)
maintenance program. Examples of VOCs include cigarette
smoke, ammonia, ethanol, and the low levels of toluene
produced during wood finishing and construction products.

Why does the VOC08 lack a VOC accuracy specification?
Because it can only measure the
contributed by multiple gases, rather than the concentration
of a single gas. VOC meters that use photo-ionization
detection (PID) technology and ultraviolet lamps to break
down single-gas VOCs into ions are faster and more accurate
than the VOC08, but they cost at least 10 times more. The
VOC08 is therefore a much more suitable solution for home
inspectors and facilities managers who only need to spot­check concentrations of mixed-gas VOCs.

total concentration of VOCs

KEY FEATURES

• Metal-oxide semiconductor sensor within vented ball
housing detects ammonia, toluene, ethanol, hydrogen
sulfide (H2S) and cigarette smoke

• Makes ballpark measurements of total VOC concentration
as well as accurate measurements of ambient temperature,
relative humidity (RH), dew point and wet bulb
temperatures

3

• Logs up to 32,000 data points. The entire capacity can be
devoted to VOC readings, or devoted one-third each to VOC,
ambient temperature and RH readings.

• Powerful data logging software that downloads readings to
a PC for display/printing as table or graph. Software
supports four data logging modes—including starting and
stopping recording without a PC.

• Adjustable high VOC concentration audible alarm

• Min/Max memory (for all measured parameters) and
data hold

• Automated VOC zero adjustment procedure

• Manually offsettable temperature and RH sensor drift

• Large backlit dual-readout LCD

• 15-minute Auto Power Off (can be disabled)

• Low battery indication

• Tripod mount

• Powered by (6) “AAA” batteries (not included) or AC adaptor
(included)

• CE and RoHS approved

• 2-year limited warranty

WHAT’S IN THE PACKAGE

The VOC08 instrument, a PC-compatible data logging
program on disc, a USB cable, an AC adaptor and this
hardware user’s manual come in a soft pouch inside a white
box.This hardware manual is also provided as a printable pdf
file on the disc, along with a pdf file of the VOC08 software
manual.

4

PRODUCT OVERVIEW

Fig. 1 shows all controls, indicators and physical structures of
the VOC08. Fig. 2 shows all possible indications on the LCD.
Familiarize yourself with the locations and functions of the
control buttons and the meanings of the display icons before
moving on to the Setup and Operating Instructions.

1. VOC and temp-RH sensors inside vented ball housing

2. LCD with upper and lower readouts

3. Control buttons

• HOLD. Pressed briefly, freezes both
readouts. Also used to raise VOC high
alarm threshold. Pressed at same time
as PWR button with meter off, disables
15-minute APO function. Pressed and
held, clears stored Min and Max session
values.

• MODE. Pressed briefly, selects
value(s) shown on lower readout:
Ambient temperature alternating with
RH; Dew Point (DP) temperature; or
Wet Bulb (WB) temperature. Also shifts
flashing digit one position to the left in
VOC high alarm threshold setting mode.

• PWR. Pressed briefly with meter off,
powers meter on. Pressed and held

with meter on, powers meter off.
Pressed briefly with meter on, arms/

disarms high VOC concentration alarm.

• MAX/MIN. Pressed briefly, displays
on the upper readout the highest or
lowest concentration detected since the

6

Fig. 1.

The controls,

indicators

and physical

structures

of the VOC08

1

2

3

7

4

5

5