Critical Environment Technologies YESAIR User manual

YESAIR 8-Channel IAQ Monitor
www.critical-environment.com
Rev. K | 2017.01 | For instrument firmware version 3.0 & up.
Operation Manual

Rev. K | 2017.01 YESAIR Operation Manual
2 © 2017 All rights reserved. Data subject to change without notice.
TABLE OF CONTENTS
1 POLICIES...............................................................................................4
1.1 Important Note............................................................................................4
1.2 Warranty Policy...........................................................................................4
1.3 Service Policy.............................................................................................5
1.4 Copyrights ..................................................................................................6
1.5 Disclaimer...................................................................................................6
1.6 Revisions....................................................................................................6
2 INTRODUCTION....................................................................................8
2.1 General Description....................................................................................8
2.2 Contents .....................................................................................................9
3 INSTRUMENT SPECIFICATIONS ......................................................10
3.1 General Overview.....................................................................................10
3.2 Key Features ............................................................................................10
3.3 Technical Specifications...........................................................................11
3.4 Enclosure Dimensions..............................................................................13
4 SENSOR SPECIFICATIONS...............................................................14
4.1 Sensor Configuration Notes......................................................................14
4.2 Plug & Play Sensor Gas Types................................................................. 15
5 FEATURES & FUNCTIONS................................................................17
5.1 Front View ................................................................................................17
5.2 Bottom View..............................................................................................18
5.3 Left Side View...........................................................................................18
5.4 Rear View................................................................................................. 20
5.5 Top View with Sensor Cover ....................................................................20
5.6 Top View Diffusion vs Pump Model..........................................................20
6 OPERATION........................................................................................22
6.1 Overview................................................................................................... 22
6.2 Switching Instrument On & Off..................................................................22
6.3 Battery & Battery Warnings ......................................................................23

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© 2017 All rights reserved. Data subject to change without notice. 3
6.4 Main Menu Function.................................................................................24
7 MENU FUNCTION DETAILS...............................................................25
7.1 Calibrate Menu .........................................................................................25
7.2 Settings Menu...........................................................................................26
7.3 Datalog Menu ...........................................................................................29
7.4 Alarm Menu ..............................................................................................32
7.5 Info Menu.................................................................................................. 33
7.6 USB Menu ................................................................................................34
8 CALIBRATION PROCEDURES..........................................................34
8.1 Requirements & Cautions.........................................................................34
8.2 Calibration Process: Zero .........................................................................35
8.3 Calibration Process: 3-Point Span............................................................37
8.4 Calibration Process: 1-Point Span............................................................38
9 ADDING OR CHANGING PLUG & PLAY SENSORS........................39
10 INSTALLING THE YES VIEWER SOFTWARE................................42
11 MAINTENANCE.................................................................................43
12 TROUBLE SHOOTING......................................................................43
13 ACCESSORIES.................................................................................44
13.1 Hard Shell Carrying Case (Extra Durable).............................................. 44
13.2 Extended Operation (Short Term) External Battery................................ 44
13.3 Extended Operation (Long Term) External Battery.................................45
13.4 Handheld Probe...................................................................................... 45
13.5 YES Logger Package .............................................................................46
13.6 YES Viewer Software .............................................................................47

Rev. K | 2017.01 YESAIR Operation Manual
4 © 2017 All rights reserved. Data subject to change without notice.
1 POLICIES
1.1 Important Note
Read and understand this manual prior to using this instrument. Carefully read the
warranty policy, service policy, notices, disclaimers and revisions on the following
pages.
This instrument should be inspected and calibrated regularly by a qualified and
trained technician.
This instrument has not been designed to be intrinsically safe. For your safety, do
not use it in classified hazardous areas (explosion-rated environments).
INSTRUMENT SERIAL NUMBER:
________________________________________________________________
PURCHASE DATE:
________________________________________________________________
PURCHASED FROM:
________________________________________________________________
1.2 Warranty Policy
Critical Environment Technologies Canada Inc. (the manufacturer) warrants this
instrument, (excluding sensors, battery packs, batteries, pumps and filters), to be
free from defects in materials and workmanship for a period of two years from
the date of purchase from our facility. The sensors have a warranty period of
one year on a pro-rated basis from the date of purchase from our facility. If
the product should become defective within this warranty period, we will repair or
replace it at our discretion.
The warranty status may be affected if the instrument has not been used and
maintained as per the instructions in this manual or has been abused, damaged
or modified in any way. This instrument is only to be used for purposes stated
herein. The manufacturer is not liable for auxiliary interfaced equipment or
consequential damage.
Due to ongoing research, development and product testing, the manufacturer
reserves the right to change specifications without notice. The information

YESAIR Operation Manual Rev. K | 2017.01
© 2017 All rights reserved. Data subject to change without notice. 5
contained herein is based on data considered accurate. However, no warranty is
expressed or implied regarding the accuracy of this data.
All goods must be shipped to the manufacturer by prepaid freight. All returned
goods must be pre-authorized by obtaining a return merchandise authorization
(RMA) number. Contact the manufacturer for a number and procedures required
for product transport.
1.3 Service Policy
Critical Environment Technologies Canada Inc. (CETCI) maintains an instrument
service facility at the factory. Some CETCI distributors / agents may also have
repair facilities; however, CETCI assumes no liability for service performed by
anyone other than CETCI personnel.
Repairs are warranted for 90 days after date of shipment (sensors, pumps, filters
and batteries have individual warranties).
Should your instrument require non-warranty repair, you may contact the
distributor from whom it was purchased or you may contact CETCI directly.
Prior to shipping equipment toCETCI, contact our office for an RMA #. All returned
goods must be accompanied with an RMA number.
If CETCI is to do the repair work, you may send the instrument, prepaid, to:
Attention: Service Department
Critical Environment Technologies Canada Inc.
Unit 145, 7391 Vantage Way
Delta, BC, VGN 1M3
Always include your Returned Merchandise Authorization (RMA) number,
address, telephone number, contact name, shipping / billing information, and a
description of the defect as you perceive it. You will be contacted with a cost
estimate for expected repairs, prior to the performance of any service work.
For liability reasons, CETCI has a policy of performing all needed repairs to restore
the instrument to full operating condition.
Pack the equipment well (in its original packing if possible), as we cannot be held
responsible for any damage incurred during shipping to our facility.

Rev. K | 2017.01 YESAIR Operation Manual
6 © 2017 All rights reserved. Data subject to change without notice.
1.4 Copyrights
This manual is subject to copyright protection; all rights are reserved. Under
international and domestic copyright laws, this manual may not be copied or
translated, in whole or in part, in any manner or format, without the written
permission of CETCI.
All software which CETCI utilizes and / or distributes holds a proprietary interest
and is also subject to copyrightprotection and all rights are reserved. No partymay
use or copy such software in any manner or format, except to the extent that CETCI
grants them a license to do so. IF THIS SOFTWARE IS BEING LOADED ONTO
MORE THAN ONE COMPUTER, EXTRA SOFTWARE LICENSES MUST BE
PURCHASED.
Reference important notes under 1.1 Important Notes and 6.2 Switching
Instrument On / Off.
1.5 Disclaimer
Under no circumstances will CETCI be liable for any claims, losses or damages
resulting from or arising out of the repair or modification of this equipment by a
party other than CETCI Service Technicians, or by operation or use of the
equipment other than in accordance with the printed instructions contained within
this manual or if the equipment has been improperly maintained or subjected to
neglect or accident. Any of the forgoing will void the warranty.
Under most local electrical codes, low voltage wires cannot be run within the same
conduit as line voltage wires. It is CETCI policy that all wiring of our products meet
this requirement. It is CETCI policy that all wiring be within properly grounded
(earth or safety) conduit.
1.6 Revisions
This manual was written and published by CETCI (the manufacturer). The
manufacturer makes no warranty or representation, expressed or implied including
any warranty of merchantability or fitness for purpose, with respect to this manual.
All information contained in this manual is believed to be true and accurate at the
time of printing. However, as part of its continuing efforts to improve its products
and their documentation, the manufacturer reserves the right to make changes at
any time without notice. Revised copies of this manual can be obtained by
contacting CETCI or visiting www.critical-environment.com.
Should you detect any error or omission in this manual, please contact CETCI at
the following address:

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© 2017 All rights reserved. Data subject to change without notice. 7
Critical Environment Technologies Canada Inc.
Unit 145, 7391 Vantage Way
Delta, BC, V4G 1M3
Canada
Toll Free: +1.800.940.8741
Tel: [phone]
Fax: [phone]
Website: www.critical-environment.com
In no event will CETCI or its officers or employees be liable for any direct, special,
incidental or consequential damages resulting from any defect in any manual, even
if advised of the possibility of such damages.

Rev. K | 2017.01 YESAIR Operation Manual
8 © 2017 All rights reserved. Data subject to change without notice.
2 INTRODUCTION
2.1 General Description
Thank you for purchasing our YESAIR. The YESAIR is a multi-sensor, battery
powered, portable air quality detection and data logging instrument designed for
intermittent or continuous indoor air quality monitoring.
The YESAIR is available in a Pump model or a Diffusion model. The main
difference between the two models is the method in which they sample the air. The
Diffusion model works by sample air passing through the sensor openings by
diffusion on the top of the unit. The Pump model works by drawing in sample air
through a nozzle with an internal pump on the side of the unit.
Choose from 30 different plug and play sensor modules that can be changed in
the field and are operable within minutes (accurate readings will require more time
as each sensor type has a different warm up / stabilization period before they are
able to perform to publish specifications). Both models are equipped with a top
mounted temperature and relative humidity sensor to aid in verifying readings,
providing a comprehensive indication of air quality. Information readings are
written to a plug-in SD memory card providing memory storage to protect your
recorded information.
Calibration and repairs are available at our manufacturing facility and through
some of our authorized and trained distributors.
The YESAIR can reliably record time-based information, which can be downloaded
via a USB port located on the right side of the instrument. Any computer capable
of running Microsoft Windows 2000 or higher (with an available USB
communications port) can accommodate the YES VIEWER Software. The YES
VIEWER Software allows users to analyze and graph the data.
If after reading through the manual, you have any questions, please do not hesitate
to contact our Service Department for technical support.

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© 2017 All rights reserved. Data subject to change without notice. 9
2.2 Contents
This checklist ensures that you have received everything required to run your IAQ
monitor / logger.
If you do not receive any of the items listed below, contact the factory immediately:
YESAIR multi-gas monitor / logger
AC wall adapter 6 V @ 850 mA
Nickel-metal hydride rechargeable batteries (3 x “AA”)
Calibration / probe fitting
Operation manual
YES VIEWER terminal data logging software (optional)
Communications cable (optional)
Other specified accessories (please refer to original sales order and the
comments below):
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
DATE:
________________________________________________________________
CHECKED BY:
________________________________________________________________

Rev. K | 2017.01 YESAIR Operation Manual
10 © 2017 All rights reserved. Data subject to change without notice.
3 INSTRUMENT SPECIFICATIONS
3.1 General Overview
YESAIR is a battery powered, portable indoor air quality monitor and information
recording (data logging) instrument designed for intermittent or continuous
operation. Its intended use is for indoor environments.
A basic instrument includes a multi-line LCD alpha numeric display, audible alarm,
rechargeable batteries, temperature and relative humidity (RH) sensors and an
Operation manual.
The YESAIR can handle up to five additional internal plug & play sensors
consisting of a maximum of three electrochemical toxic gas or oxygen sensors,
plus two high current draw sensors such as an infrared PID or catalytic sensor,
and a remote particulate sensor such as the YESDUST. Choose from a selection
of up to thirty different sensors to best suit your application specifications.
Reference the list of available sensors under 4.2 Plug & Play Sensor
Specifications.
3.2 Key Features
Light weight, contoured and comfortable to hold.
Flame rated ABS/Polycarbonate enclosure.
Displays all installed sensors simultaneously on backlit LCD display.
Multi-function, easy to use menu.
Operates from nickel metal hydride (NiMH) rechargeable batteries
(standard), or alkaline batteries, or continuously from the plug-in power
adapter.
Hangs on a wall (rear slot molded in), mounts on a camera tripod or sits on
a desk.
Accommodates a standard cable lock for securing the instrument in place.
Samples air with internal sample draw pump or by diffusion.
Accommodates electrochemical, catalytic, PID or infrared sensor types.
Thirty different plug & play sensors available to choose from.
Logs and stores information and events on a 2GB memory card
USB data downloading and auxiliary up loading from remote probes
XP, VISTA & Windows 7, 8 compatible

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3.3 Technical Specifications
MECHANICAL
Enclosure
Rugged ABS / Polycarbonate (UL94 rated)
Weight
567 g (20 oz)
Size
7.8” x 3.1” x 3.9” (197 mm x 78 mm x 98 mm)
ELECTRICAL
Power Standard
Optional
Continuous
Rechargeable 3.6 V NiMH battery pack (8 hours
continuous operation time c/w plug-in battery charger
/ wall adapter (100 - 240 V, 50 - 60 Hz).
Note: A “protection diode” in the circuit provides safety
protection when the batteries are accidently inserted
with reversed polarity.
Alkaline AA batteries x 3
See section 6.3 Battery & Battery Warning.
Plug-in, 6VDC, Class-III, 2 A DC max. wall adapter
Sampling Pump Model
Diffusion Model
Internal, automatic sample pump draws in sample of
target environment.
Sample air is diffused naturally over the sensors for
quick, direct reading.
Memory
> 1 million data points data logging to SD memory
card (optional)
Calibration
Automated through keypad
Information Recording
12 bit, multi-channel, user configurable with
removable 2GB SD memory card.
Optional YES Logger package includes: 2GB SD
memory card and card reader, 6 foot USB cable and
YES VIEWER software.
Circuit
Microprocessor, user configurable.

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12 © 2017 All rights reserved. Data subject to change without notice.
Communication
Miniature USB port for changing settings and
configuring logging functions and auxiliary port for
using additional sensors (i.e. YESDUST)
USER INTERFACE
Display
Back-lit, multi-line LCD alphanumeric display
Buttons
3 tactile push buttons for user access
Audible
Internal 80 Db @ 4’. One set point adjustment.
Audible can be switched off through menu.
ENVIRONMENTAL (sensor dependant)
Operating Temperature
5°C to 50°C (41°F to 122°F)
Operating Humidity
0 - 99% RH non-condensing
Storage Temperature
-20°C to 60°C (-4°F to 140°F)
Storage Humidity
0 - 99% RH non-condensing
CERTIFICATION
CE Certified
CE standards for safety: I .S. EN61010-1:2001 (Ed.2)
CE standards for emissions: EN 50270:2006
CE standards for immunity: EN 50270:2006
FEATURES
Removable sensor cover (top of enclosure)
Removable battery cover (bottom of enclosure)
Threaded insert (bottom of enclosure) to accommodate a camera tripod
Slot for cable lock (right side bottom)
Slot at the upper rear to allow instrument to hang on a wall
Openings at front top left for audible sounder
USAGE
The YESAIR is a portable, battery powered instrument designed for handheld use.
Other uses include:
1 Mounting on a standard camera tripod via the threaded brass fitting molded
into the base of the instrument (Reference photo in 5.2 Bottom View).
2 Wall mounting via the slot of upper rear portion of the instrument enclosure.
(Reference photo in 5.4 Rear View).

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© 2017 All rights reserved. Data subject to change without notice. 13
3 Instrument will easily accommodate sitting on a flat surface such as a desk
top.
Minimum System Requirements to Operate Datalog Recording Software
(YES Viewer Software):
Personal computer with Pentium III class processor or better
Minimum 512MB RAM (more is better), Windows compatible
A hard disk with at least 1 MB of available disk space. Additional space is
required to store logger files and graph files.
USB port
3.4 Enclosure Dimensions

Rev. K | 2017.01 YESAIR Operation Manual
14 © 2017 All rights reserved. Data subject to change without notice.
4 SENSOR SPECIFICATIONS
4.1 Sensor Configuration Notes
The YESAIR has the capacity for 7 internal sensors –one temperature sensor,
one RH sensor and 5 plug and play gas sensors.
In addition, it can be connected to a YES DUST via the auxiliary port. The YES
DUST is a general purpose particulate sensor that counts particulates between 1
and 10 microns in size. It should not be used in clean room applications. The
YESDUST uses the YESAIR’s data logging capabilities to record data and adds
this information to the log file along with the YESAIR’s data records. If you would
like more information on the Yes Dust please visit our website.
The YESAIR has plug and play smart sensors and placement of those sensors is
an important consideration. With the display facing you, look at the top of the
YESAIR and you will see five gas sensor sockets. The three sockets closest to
the back edge are for electrochemical toxic gas sensors, with the socket 2
configured specifically for an Oxygen sensor. Sockets 4 and 5 towards the front
edge are for CO2, PID or combustible gas sensor types. If a nitric oxide (NO)
sensor requiring electronic bias within the circuit is used, it must be fitted to one
specific sensor location (left rear position, determined by looking at the front of the
instrument). Two sensors requiring bias cannot be fitted in the same instrument at
the same time. Reference the photo in Figure 1: Transmitter Circuit Board in
Section 9 ADDING OR CHANGING PLUG AND PLAY SENSORS for specific
sensor locations.
Sensors can be added or changed as required. However, an instrument that is
configured for nitric oxide, hydrogen chloride, ethylene oxide, hydrazine or
formaldehyde cannot be swapped with a different sensor type without hardware
modification and cannot be placed in any other socket than socket 3 or 1. If this
change is desired, the unit needs to be sent back to the factory to be reconfigured.
It is also important to note is that sticky gas sensors such as chlorine, hydrogen
chloride or ozone can only be used with the Diffusion model.

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4.2 Plug & Play Sensor Gas Types
SENSOR
TYPE
RANGE
PRODUCT
CODE
Ammonia (NH3)
EC
0 - 50 ppm
PNP-H
Arsine (AsH3)
EC
0 - 2 ppm
PNP-R
Carbon dioxide (CO2)
IR
0 - 5,000 ppm
PNP-A+
Carbon dioxide (CO2)
IR
0 - 10,000 ppm
PNP-A1
Carbon dioxide (CO2)
IR
0 - 20% volume
PNP-A2
Carbon dioxide (CO2)
IR
0 - 5% volume
PNP-B
Carbon dioxide (CO2)
IR
0 - 100% volume
PNP-B1
Carbon monoxide (CO)
EC
0 - 50 ppm
PNP-C
Carbon monoxide (CO),
(H2compensated for use in H2
background)
EC
0 - 50 ppm
PNP-C1
Chlorine (Cl2) *
EC
0 - 5 ppm
PNP-I
Chlorine dioxide (ClO2)
EC
0 - 1 ppm
PNP-J
Combustibles
CAT
0 - 100% LEL
PNP-X
Ethylene (C2H4)
EC
0 - 200 ppm
PNP-E1
Ethylene oxide (C2H4O)
EC
0 - 20 ppm
PNP-E2
Fluorine (F2) *
EC
0 - 2 ppm
PNP-S
Formaldehyde (CH2O)
EC
0 - 5 ppm
PNP-Q
Hydrogen (H2)
EC
0 - 1,000 ppm
PNP-K
Hydrogen chloride (HCl) *
EC
0 - 30 ppm
PNP-M
Hydrogen cyanide (HCN)
EC
0 - 100 ppm
PNP-N
Hydrogen fluoride (HF) *
EC
0 - 10 ppm
PNP-O
Hydrogen sulphide (H2S)
EC
0 - 50 ppm
PNP-L
Nitric oxide (NO)
EC
0 - 100 ppm
PNP-E
Nitrogen dioxide (NO2)
EC
0 - 5 ppm
PNP-D
Oxygen (O2)
EC
0 - 25% volume
PNP-F
Ozone (O3) *
EC
0 - 1 ppm
PNP-G
Phosphine (PH3)
EC
0 - 1 ppm
PNP-V

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16 © 2017 All rights reserved. Data subject to change without notice.
Silane (SiH4)
EC
0 - 50 ppm
PNP-W
Sulphur dioxide (SO2)
EC
0 - 20 ppm
PNP-P
TVOCs
PID
0 - 300 ppm
PNP-Y+
TVOCs
PID
0 - 30 ppm
PNP-Z+
Legend:
EC Electrochemical
SS Solid State
CAT Catalytic
IR Infrared
PID Photo Ionization Detector
NOTES:
1. Not all of the above sensors are available from stock. Delivery time for sensors
ordered will vary depending on which sensors are ordered, how many are
ordered and measurement range desired.
2. Other measurement ranges are available for some sensors. Contact factory
with desired range to confirm availability.
3. Some of these sensors must be calibrated with correlation gases because
they are more readily available. If the customer wishes them to be calibrated
with the exact target gas, extra charges will apply to acquire the specific gas
if and when available. In these cases, customer will be required to take
delivery of the special cylinder of span gas and dangerous goods and shipping
costs will apply.
4. Some of the above sensors have cross sensitivities to other gases (interfering
gases). Please refer to the sensor specification chart before ordering a
specific sensor if your application may have some of the interfering gases
present.
5. * These sensors are available with the Diffusion model only.

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© 2017 All rights reserved. Data subject to change without notice. 17
5 FEATURES & FUNCTIONS
5.1 Front View
NUMBER
FEATURE
FUNCTION

Temperature / RH Sensor
Shroud
Protects from everyday ruggedness and
responds quicker to changes in RH and
temperature.

Air Vents
For venting heat build-up from internal sensors.

Sensor Cover
Protects sensors from everyday ruggedness

Audible Alarm

Lexan Label

Digital Display
User interface; Multi-line, back-lit, LCD,
alphanumeric display

Cable Lock Slot
Located lower down on the side

Plug-in Wall Adapter Slot
For continuous operation. 6 VDC only.

Keypad
3 tactile push buttons to maneuver through
display menu.












Rev. K | 2017.01 YESAIR Operation Manual
18 © 2017 All rights reserved. Data subject to change without notice.
5.2 Bottom View
NUMBER
FEATURE
FUNCTION

Brass Thread
For camera tripod mounting

Battery Lid
Holds batteries in
5.3 Left Side View










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NUMBER
FEATURE
FUNCTION

Air Vents
For venting heat build-up from internal sensors.

Pump Inlet Fitting
Connects the flow adapter. Requires only one
turn of the fitting. Pump model only.

Rubber Boot Cover
Covers the USB download slot, auxiliary upload
slot and SD memory card slot for data logging.

Auxiliary Port
For remote probes.

Memory Card Slot
Holds the 2GB SD memory card

USB Port
For downloading data to the computer.

Cable Lock Slot
Secures cable lock similar to what is typically
used for laptop computers.
NOTE:
1. The YESAIR can only accommodate up to a 2GB memory card. It is
unadvisable to try to use a larger capacity memory card. Also, if you
remove or insert the card without powering the unit OFF, this will cause
data corruption and the card will need to be reformatted.

Rev. K | 2017.01 YESAIR Operation Manual
20 © 2017 All rights reserved. Data subject to change without notice.
5.4 Rear View
NUMBER
FEATURE
FUNCTION

Molded Slot
For hanging instrument on wall.

Access Holes
Access to screws holing front & rear enclosure
halves together. Three in total.

Label
Identifies the model and serial number.
5.5 Top View with Sensor Cover








