Teledyne SNACK O2 User Manual

SNACK O2

Oxygen Gas Analyzer Owners Manual

Analyzer

Rev. 2.1

Teledyne Electronic Technologies

Analytical Instruments

626.934.1500

www.teledyne-ai.com

Teledyne Analytical Instruments

2

Table of Contents

Table of Contents.......................................................3

Introduction................................................................5

Specifications.............................................................5

Oxygen (O2) sensor.......................................................5

Battery Life Notes......................................................5

Functions....................................................................6

Power Switch .........................................................................6

Operate Mode................................................................7

LCD Display...........................................................................7

Buttons Functions (Operate Mode)........................................8

Program Mode...............................................................8

Buttons Functions (Program Mode).......................................8

Parameter Menu ....................................................................8

Operation..................................................................10

Drawing A Sample.......................................................10

Sample Duration ..........................................................10

Sleep Mode Time o ut....................................................10

Auto Hold Function.....................................................11

Battery Level Indicator................................................11

Battery Charging.........................................................11

Filter.............................................................................11

Oxygen Resolution Adjustment.................................11

Sensor Life Indicator...................................................11

Calibration................................................................12

Oxygen Sensor (O2).....................................................12

Maintenance and Adjustments...............................12

Opening / Closing The Analyzer Case .......................12

Replacing the Ox ygen sensor....................................13

Battery Replacement...................................................15

Troubleshooting.......................................................16

Technical Support / Accessories............................17

Warranty...................................................................18

Figures......................................................................19

Figure 1........................................................................19

Figure 2........................................................................20

Figure 3........................................................................21

Teledyne Analytical Instruments

3

Notice: Manufacturer shall not be liable f or technic al or editorial err ors or om issions contained herein;
nor for incidental or consequential dam ages resulting f rom the f urnishing, perform ance, or use of this
material. This guide contains information protected by copyright. No part of this guide may be
photocopied or reproduced in any form without express written consent of the Manufacturer.
Information in this guide is subject to change without notice.

Teledyne Analytical Instruments

4

Introduction

Congratulations on the purchase of a SNACK O2 gas analyzer. We are confident
that you will find this gas analyzer to be accurate, reliable and easy to use.
Designed for portability, this analyzer is well suited for a number of applications and
in all sorts of environments. Please take a moment to browse through this manual
and to familiarize yourself with the various features and functions of the analyzer.

Specifications

Operating Temperature:

32° – 122° (0° – 50° C)

Operating Humidity: 5 – 95% RH, Non-

condensing
Response Time: 90% of reading < 3 sec.
Warm-up Time: None.
Calibration: O2 - Atmosphere (20.9%

O2).
*Battery Life: 1 hour continuous sample
Power Requirements: 12 VDC (500 mA) external

power.
Weight: 48 oz.

* approximation

Oxygen (O2) sensor

Range: 0 – 100% O2
Accuracy:* +/- 1% reading full scale
Repeatability: Better than 0.1% O2

Battery Life Notes

The analyzer has been designed to minimize power consumption. Factors such as
ambient temperature and device usage have an effect on battery performance. For
optimal battery life, follow these tips:

• Place the Power switch in the OFF position whenever analyzer is not being used

for any long period of time.

• Utilize external power source whenever possible.

• In Batt. position, turn off the LCD Back Light when not needed.

• Set the Sleep Mode Timeout to a usable minimum.

• Never store the analyzer over long periods of time with dead batteries. To do so

may cause damage and shorten battery life.

• Do not store the analyzer over long periods of time with the external power

source plugged in.

Teledyne Analytical Instruments

5

Functions

The analyzer has two modes of operation, the Program Mode and the Operate
Mode.

Power Switch

Switch Position Description

OFF Analyzer power is off. Batteries

will continue to charge if Power
Supply is connected.

Batt. Battery Power – Analyzer is on

and drawing power from the
internal batteries. Batteries will
continue to charge if Power
Supply is connected.

Ext. External Power – Analyzer is on

and is drawing power from either
the external battery or the
external power supply. If the
external power supply is
connected, then the Batteries
(both internal and external) will
continue to charge while switch
is in this position. Analyzer will
not operate in this switch
position if the Power Supply or
external battery is not
connected.

Teledyne Analytical Instruments

6

Operate Mode

The Operate Mode is the default mode of operation when the Power Switch is
placed in the on (Batt. or Ext.) position. O2 is displayed in the LCD and the sample
button is available to operate the pump and draw samples.

LCD Display

Displayed Description

O2 XX.X(X)
O

XX.XX (-) Indicates the sample pump is

-

2

Oxygen Reading (%)

running.

•••• •••• •••• ••••

Indicates that the analyzer is in
the battery saving sleep mode.
Cycle the power switch to return
the analyzer to the Operate
Mode.

Low Batt Indicates that the internal

batteries are low on power and
need to be charged.

RE-CAL? Indicates that the internal

processor has reset and
parameter values have been
reset to the default setting.

Teledyne Analytical Instruments

7