Oldham AirAware Instruction Manual

AirAware

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Stationary Gas Monitor

type AirAware

Instruction Manual

P/N: 6 700-1347 REV 4

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AirAware

OUR MISSION

Preserving human life on, above and below the earth.

Delivering highest quality, best customer service…

every transaction, every time.

AirAware

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Dear Valued Customer:

Thank you for buying and using the Industrial Scientific Oldham AirAware™
Gas Monitor.

The AirAware™ can be relied upon for dependable service, day after day. It
has been designed, manufactured, tested and proven under the most
scrutinizing conditions possible. With the minimal care and maintenance
described in this Instruction Manual, it will provide you with years of reliable
monitoring.

I sincerely hope that you be pleased with the performance of the AirAware™
in the months and years ahead. I urge you to call us with any questions or
comments you may have. Often times a phone call and a question can save
you hours of frustration. Please do not hesitate to contact us at 1-800­DETECTS (338-3287).

All of us at Industrial Scientific Oldham appreciate the opportunity to serve
you.

Yours very truly,

Thomas M. Cunningham

President

Industrial Scientific Oldham

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AirAware

Table of Contents

Warnings and Cautionary Statements ........................................................ 5!

Configurations ............................................................................................ 5!

Unpacking The Instrument ......................................................................... 6!

Mounting & Installation ............................................................................. 7!

Wiring ........................................................................................................ 8!

Warm-Up And Operation ........................................................................... 8!

Set-up Mode ............................................................................................... 9!

Bump Testing ........................................................................................... 12!

Sensor Type .............................................................................................. 12!

Low Alarm Set-up .................................................................................... 12!

High Alarm Set-up ................................................................................... 13!

4-20 On/Off** .......................................................................................... 13!

4-20 mA Range** .................................................................................... 13!

Audio Enable/Disable** .......................................................................... 14!

Display On/Off ......................................................................................... 14!

Display Type ............................................................................................ 14!

Set Cal Gas Concentration ....................................................................... 15!

ModBus Address ...................................................................................... 15!

Back To Normal Operation ...................................................................... 16!

Alarms ...................................................................................................... 16!

ModBus Interface ..................................................................................... 18!

Bump (function) Testing .......................................................................... 18!

Zeroing ..................................................................................................... 19!

Calibration ................................................................................................ 20!

Sensor Replacement ................................................................................. 21!

Specifications ........................................................................................... 23!

Replacement Parts & Accessories ............................................................ 24!

Calibration Kits & Replacement Cylinders .............................................. 25!

Warranty ................................................................................................... 26!

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Warnings and Cautionary Statements

Failure to perform certain procedures or note certain conditions may impair
the performance of the instrument. For maximum safety and performance,
please read and follow the procedures and conditions outlined below.

Sensor openings and water barriers must be kept clean. Obstruction of
the sensor openings and/or contamination of the water barriers may
cause readings to be lower than actual gas concentrations.

Configurations

All versions include a bright 4 digit LED display as well as low and high
visual alarm indication.

AirAware - Base part number 68100056-ABCDE.

A = Sensor Gas Type
B = On-Board Alarm Option
C = Output Options
D = Power Option
E = Vanity / Faceplate Cover Option

A - Gas Type

1 = Carbon Monoxide (CO)
2 = Nitric Oxide (NO)
3 = Ammonia (NH3)
4 = Hydrogen Sulfide (H2S)
5 = Sulfur Dioxide (SO2)
6 = Nitrogen Dioxide (NO2)
7 = Chlorine (Cl2)
A = Oxygen (O2)
F = Hydrogen Chloride (HCl)

B - On-Board
0 = No audio alarm
1 = On-board audio alarm

C – Output Options

0 = None
1 = On-board relays
2 = 4-20mA output
3 = 4-20mA output and on-board relays

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AirAware

D - Power Option

0 = No output
1 = AC power adapter (installed)

E - Vanity Plate (Faceplate Cover) Option

0 = None
1 = Vanity plate

Example: 68100056-11211 means CO monitor with on-board audio alarm, a
4-20mA output, an AC power adapter (N.Am. Plug) and vanity cover.

Unpacking The Instrument

The shipping box should contain the following items. Account for each item
before discarding containers.

Quantity

Part Number

Description

1 each

6810 0056-XXXXX

AirAware Instrument

1 each

6700 1347

AirAware Instruction Manual

Note: Bias sensors (HCl, NH3, NO) are not installed in instruments prior to
shipment. Refer to Sensor Replacement section (page 21) for instructions.

After unpacking, if any item listed is missing, contact either your local
distributor of Industrial Scientific Oldham products, or call Industrial
Scientific Corporation Oldham directly at 1-800-DETECTS (338-3287) in the
United States and Canada, or [phone].

AirAware

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Mounting & Installation

The mounting height of the AirAware is dependent on the gas being
monitored and the source of the gas. General mounting guidelines are as
follows:

Gas

Heavier Than Air

Similar To Air

Lighter Than Air

Will collect in low
lying areas 3' (1m)
above floor

Breathing zone
monitoring recom­mended 3'-6' (1-2m)
above floor

Will collect in high
areas 3' (1m) below
ceiling

Ammonia (NH3)

Carbon Monoxide (CO)

Chlorine (Cl2)

Hydrogen Chloride (HCl)

Hydrogen Sulfide (H2S)

Nitric Oxide (NO)

Nitrogen Dioxide (NO2)

Oxygen (O2)

Sulfur Dioxide (SO2)

With 5 conduit-type knockouts located around the outside edges as well as a
back plate knockout for flush mounting, the AirAware offers maximum
mounting flexibility. There is even provision for mounting on electrical outlets
with 2” and 4” (North American) centers.

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AirAware

To insure there is no damage to the main electronics, it is recommended that
the circuit board be removed prior to relieving a knockout or drilling through
the pilot points for the flush mount option. Extreme caution should be taken
when removing and re-installing the circuit board so as not to damage it.

Wiring

Connect only to Class 2 power supply through approved conduit and
enclosures in accordance with local authorities having jurisdiction.

Recommended Cable: 3 or 4 conductors (application dependent), 24 AWG,
stranded tinned copper, shielded cable Belden #9842 or equivalent.

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Warm-Up And Operation

All AirAware versions operate on 12-24 VDC. The Monitor version includes a
120 VAC power pack for North American electrical sockets (not included in
the International version) that supplies 24 VDC to the instrument.

Once powered, the instrument will go through an automatic self-test. During
this time it will complete a full display segment test, brief audio and visual
alarm test, software version, gas type, configuration M, C, T, CT (Note: “A”
as an indicator of optional audio alarm) and finally a live continuous display
of the gas concentration. During the first three minutes of operation the alarms
will not activate and the 4-20 mA signal with be held at 3 mA (16 mA for
O2).***

AirAware

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Each AirAware utilizes electrochemical sensors that may require between 10
and 360 minutes (gas dependent) or 12-16 hours for NH3 and HCl to stabilize
when initially activated. During this warm-up period, the unit may display
concentrations of gas and possibly alarm.

***

A flashing decimal point on the lower right corner of the display will appear for 3 minutes after start-up,
calibration, bump, or programming. This is an indicator that the 4-20 mA signal is locked at 3 mA/16 mA and
that all alarm functions are disabled. Once this flashing indicator clears, all functions will return to normal.

During normal operation, the LED display shows:

HCl

0.2 to 30.0 ppm in 0.1 ppm increments

Cl2, NO2, SO2

0.2 to 99.9 in 0.1 ppm increments

NH3

4 to 200 ppm in 1 ppm increments

CO, H2S, NO

0 to 999 ppm in 1 ppm increments

O2

0.0 to 30.0% by volume in 0.1% increments

Set-up Mode

The AirAware™ is a very flexible gas-monitoring instrument with many
options. Listed below are the various programming modes and procedures
required to select various options.

1. In order to make programming changes, remove the optional vanity plate
(if installed) from the face of the instrument by releasing the locking tabs.

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2. Loosen the 5 Phillips head (captive) screws on the faceplate allowing it to
hinge downward to provide access to internal or buttons. (Labeled S1

and S2.)