PAS Systems International MARK V Alcovisor Operating Manual

Law Enforcement

MARK V Alcovisor®




Operating Manual

PAS Systems International, Inc.

215 Southport Dr. Suite 400

Morrisville, NC 27560

www.pasintl.com

(800) 660-SNIF · [phone]

Copyright© 2011 by PAS Systems International Inc., All Rights Reserved

Table of Contents

Introduction .................................................................................................................... 1

Principles of Operation ................................................................................................... 2

Preparing the MARK V ................................................................................................... 3

Installing Batteries ...................................................................................................... 3

Turning ON & OFF ...................................................................................................... 3

Attaching a Mouthpiece .............................................................................................. 3

Settings .......................................................................................................................... 4

Performing a Breath Test ............................................................................................... 5

Conditions for Test Site .............................................................................................. 5

Conditions for Test Subject ......................................................................................... 5

Air Blank Feature ........................................................................................................ 5

Measuring BrAC/BAC..................................................................................................... 6

Automatic Sampling .................................................................................................... 6

Manual Sampling ........................................................................................................ 7

Conducting a Passive Test (No Mouthpiece) .............................................................. 7

Accessing Test Records ................................................................................................. 8

Accuracy Checking and Calibration ................................................................................ 8

Wet Bath Accuracy Checking ......................................................................................... 9

Dry Gas Accuracy Checking......................................................................................... 10

Dry Gas at High Altitude ........................................................................................... 10

High Altitude Correction Chart ...................................................................................... 11

Quality Assurance Plan ................................................................................................ 12

Troubleshooting ........................................................................................................... 13

Technical Specifications ............................................................................................... 14

Safety, Maintenance & Warranty .................................................................................. 15

1

INTRODUCTION

The MARK V is an affordable, handheld quantitative breath alcohol testing instruments.
The Mark V is a NHTSA certified EBT. It can be used for law enforcement, schools,
workplace safety, or medical purposes. The MARK V features easy-to-use automatic
sampling or manual sampling procedures.

The MARK V is accurate and reliable, allowing a complete breath test procedure to be
conducted in about 30 seconds or less.

This manual describes the operation, maintenance, calibration check, and calibration
adjustment of the MARK V. This manual should be read completely and fully
understood by each operator prior to testing. It is further recommended that operators
practice the breath testing process before giving an actual “in the field” test.

1. Mouthpiece Holder

2. USB Port (left side)

3. LCD Display (Automatic Backlight)

4. ON/OFF Button (Green)
Confirm/Select

5. Function Button (Red)

NHTSA/DOT APPROVED

EVIDENTIAL BREATH ALCOHOL TESTING DEVICE (EBT)

2

PRINCIPLES OF OPERATION

The MARK V uses an electrochemical fuel cell containing two platinum electrodes to
detect and measure the concentration of alcohol vapor in expired breath. When breath
is drawn into the fuel cell by the sampling system, a small voltage is generated
proportionate to the breath alcohol concentration. This voltage is then fed to an
electronic amplifier and displayed on screen.

The instrument is simple to operate and may be used as often as required provided that
a suitable delay is allowed between successive tests. This time delay allows the fuel
cell to clear itself of alcohol and prevents the possibility of additive readings. If no
alcohol is present in a test, a second test may be analyzed immediately, since the fuel
cell voltage is already at zero. Unless the breath alcohol level of the subject is very
high, the instrument will generally be clear enough to receive and analyze a second
sample in less than two minutes.