Sensidyne GILAIR-3 Installation and operating instructions

16333 Bay Vista Dr. • Clearwater, Florida 33760 • [phone] • [phone] • [phone] [FAX] • www.sensidyne.com
Revision E • Document No. 800880M
Gilian®
GILAIR-3 & GILAIR-5
AIR SAMPLING SYSTEMS
OPERATION & SERVICE MANUAL
Battery
Fault
Gilian
®
by
Substitution of components
may impair intrinsic safety.
Use only with Gilian battery
pack PN 800464 or 800464-1.
WARNING
Made in USA
4
3
2
1
Flow
Personal Air Sampler
G
A
L
R
RFI
A
WARNING
Gilian
®
Pat. Pending Made In USA
Substitution of components may
impair intrinsic safety. Use only
specified GilAir5 battery packs.
See Labeling for intrinsic safety
approvals.
Tri-Mode Air Sampler
A
Gil ir5
Battery
Fault
5
4
3
2
1
Flow
A
RFI

LETTER FROM THE PRESIDENT
Thank you for purchasing your new Sensidyne air monitoring product. We stand
behind all of the products we sell . . . each Sensidyne product has been designed
and manufactured to provide unparalleled service, day after day. Our professional
staff has tested each unit under the strictest conditions possible to ensure successful,
accurate results every time. With the minimal care and maintenance described in this
Operation & Service Manual, the Sensidyne product you have purchased will give
you many years of reliable service.
Our only goal is that you are pleased with the quality, performance, and
accuracy of your Sensidyne product. Be assured of our complete and prompt
answers to any questions you may have about this product, since we are totally
committed to providing you with fast, responsive customer service and technical
support.
If you ever have difficulty solving a problem with any Sensidyne product, or if you
are not 100% satisfied with the service you receive from any level of our organiza-
tion, please let me know about it. Call me at either of the numbers listed below, and
I will personally research your problem to ensure that it is resolved in a manner that
is satisfactory to you. Your satisfaction with our products and service is of the utmost
importance to me.
Sincerely,
Carl Mazzuca
President, Sensidyne, Inc.
800-451-9444
727-530-3602
Fax: [phone]

3
Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
Sensidyne Document No. 800880M (Rev E)
The items listed below are shipped the Gilian GilAir-3/GilAir-5 Air Sampling System:
• GilAir-3 or GilAir-5 Air Sampling Pump
• Tool Kit
• Tubing
• Air Boss
• Restrictor
•Operation and Service Manual
• Registration Card/Warranty Card
PACKING LIST
ALWAYS check to make certain
you have received all of the items listed above.
If you have any questions or need assistance,
contact your Gilian Sales Representative, or call
[phone]
OR
[phone]

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
4
Sensidyne Document No. 800880M (Rev E)
DISCLAIMER
THE SELLER ASSUMES NO RESPONSIBILITY WHATSOEVER, TO ANY PARTY WHOSOEVER, FOR ANY
PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH RECEIVED BY OR RESULTING FROM, IN
WHOLE, OR IN PART, THE IMPROPER USE, INSTALLATION, OR STORAGE OF THIS PRODUCT BY THE
USER, PERSON, FIRM, ENTITY, CORPORATION OR PARTY NOT ADHERING TO THE INSTRUCTIONS
AND WARNINGS IN THIS MANUAL, OR OTHERWISE PROVIDED BY THE SELLER OR FROM NOT AD-
HERING TO ALL FEDERAL, STATE, AND LOCAL ENVIRONMENTAL AND OCCUPATIONAL HEALTH AND
SAFETY LAWS AND REGULATIONS.
THE SELLER SHALL NOT BE LIABLE FOR DIRECT, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR
OTHER DAMAGES RESULTING FROM THE SALE AND USE OF ANY GOODS AND SELLERS’ LIABILITY
HEREUNDER SHALL BE LIMITED TO REPAIR OR REPLACEMENT OF ANY GOODS FOUND DEFECTIVE.
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT
NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR USE OR FOR
A PARTICULAR PURPOSE WHICH ARE EXPRESSLY DISCLAIMED.
PROPRIETARY NOTICE
This manual was prepared exclusively for the owner of the Sensidyne GilAir Air Sampling System. The material within this
manual is proprietary information and is to be used only to understand, operate, and service the instrument. By receiving
this document, the recipient agrees that neither this document nor the information disclosed within nor any part thereof
shall be reproduced or transferred, physically, electronically or in any other form, or used or disclosed to others for manu-
facturing or for any other purpose except as specifically authorized in writing by Sensidyne, Inc.
COPYRIGHT NOTICE
© 2001 Sensidyne, Inc. All Rights Reserved. No part of this document may be reproduced, transmitted, transcribed, stored
in a retrieval system, or translated into any language in any form by any means without the prior written permission of
Sensidyne, Inc..
TRADEMARK NOTICE
Sensidyne,theSensidynelogo,Gilian,andtheGilianlogoareregisteredtrademarks.Thesetrademarksareprotectedthrough
use and registration in the United States. The trademarks and servicemarks used in this document are the property of their
respective companies and are used only for informational and explanatory purposes.

5
Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
Sensidyne Document No. 800880M (Rev E)
TABLE OF
CONTENTS
• PREFACE
• Notices ...................................................................................................................................3
• Packing List .......................................................................................................................... 4
• WARNINGS ........................................................................................................................... 8
SECTION ONE: INTRODUCTION
1.1 Overview ..................................................................................................................... 9
1.2 General Description.................................................................................................. 9
1.2.1 Basic Control Board .........................................................................................9
1.2.2 Internal/External Vent Control ......................................................................10
1.3 Display Icons & Messages .......................................................................................11
SECTION TWO: OPERATION
2.1 Basic Model ................................................................................................................14
2.1.1 Preparation.....................................................................................................14
2.1.2 Setting The Pump Flow Rate .........................................................................14
2.1.3 Sample Gathering ..........................................................................................14
2.1.4 Pull Start Operation .......................................................................................14
2.2 Clock Timer Model ...................................................................................................14
2.2.1 Preparation.....................................................................................................14
2.2.2 Waking the Pump For “LAST” Run Data Readout.........................................14
2.2.3 Setting The Pump Flow Rate .........................................................................15
2.2.4 Sample Gathering ..........................................................................................15
2.2.5 HOLD (Pause) Feature ..................................................................................15
2.2.6 Sampling Run Termination & Recovery ........................................................15
2.2.7 Display Self-Test ............................................................................................15
2.3 Program Timer Model .............................................................................................17
2.3.1 Preparation.....................................................................................................17
2.3.2 Waking the Pump For “LAST” Run Data Readout.........................................17
2.3.3 Setting The Pump Flow Rate .........................................................................19
2.3.4 Sample Gathering ..........................................................................................19
2.3.5 HOLD (Pause) Feature ..................................................................................19
2.3.6 Sampling Run Termination & Recovery ........................................................19
2.3.7 Display Self-Test ............................................................................................19
2.3.8 Programming The Pump ...............................................................................20

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
6
Sensidyne Document No. 800880M (Rev E)
TABLE OF
CONTENTS
SECTION THREE: FLOW OPERATION
3.1 Low Flow Operation ................................................................................................21
3.1.1 Description.....................................................................................................21
3.1.2 Constant Low Flow ........................................................................................21
3.1.3 Constant Low Flow Module...........................................................................21
3.1.4 Bag Sampling .................................................................................................21
3.2 Multi-Flow Operation ..............................................................................................22
3.2.1 Multi-Flow Module ........................................................................................22
3.2.2 Bag Sampling .................................................................................................22
SECTION FOUR: BATTERY SERVICE
4.1 Service Overview ......................................................................................................23
4.1.1 Battery Life .....................................................................................................23
4.1.2 Memory Effect ................................................................................................23
4.1.3 Leakage Current .............................................................................................23
4.2 Charging Systems .....................................................................................................24
4.2.1 Single Station Charger....................................................................................24
4.2.2 Universal Multi-Station Charger.....................................................................24
4.2.3 BMS Multi-Station charger .............................................................................24

7
Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
Sensidyne Document No. 800880M (Rev E)
SECTION FIVE: APPENDICES
• Appendix A: Parts List ............................................................................................25
• Appendix B: Specifications ...................................................................................26
• Appendix C: Troubleshooting Guide...................................................................27
• Appendix D: Returned Material Authorization .................................................28
• Returned Material Authorization ...................................................................28
• Service Options ..............................................................................................28
LIST OF FIGURES
1.1 GilAir-3 Air Sampler (Front View) ...........................................................................12
1.2 GilAir-5 Air Sampler (Front View) ...........................................................................13
2.1 Display: Clock Timer Model ...................................................................................16
2.2 Display: Program Timer Model ...............................................................................18
LIST OF TABLES
1.1 Available GilAir-3 & GilAir-5 Models ........................................................................ 9
1.2 Pneumatic System ....................................................................................................10
4.1 Estimated Battery Life ..............................................................................................23
TABLE OF
CONTENTS

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
8
Sensidyne Document No. 800880M (Rev E)
READ AND UNDERSTAND ALL WARNINGS BEFORE USE
WARNING: Do not use the BMS-200 Battery Charger to charge SIRA approved battery packs.
Read and understand ALL warnings before using this product. Failure to read, understand, and comply with
ALL warnings could result in property damage, severe personal injury, or death.
Read and understand ALL applicable Federal, State, and Local environmental health and safety laws and
regulations, including OSHA. Ensure complete compliance with ALL applicable laws and regulations before
and during use of this product.
UNDER NO CIRCUMSTANCES should this product be used except by qualified, trained, technically
competent personnel and not until the warnings, Operation and Service Manual, labels, and other literature
accompanying this product have been read and understood.
The Operation and Service Manual must be read and understood by each user before operating this product
or using its accessories, in order to ensure proper and safe use and installation of this product and to ensure
familiarity with the proper treatment and safety procedures in the event of an accident.
DO NOT remove, cover, or alter any label or tag on this product, its accessories, or related products.
DO NOT operate this product should it malfunction or require repair. Operation of a malfunctioning product,
or a product requiring repair may result in serious personal injury or death. DO NOT attempt to repair or
modify the instrument, except as specified in the Operation and Service Manual. Contact the Gilian Service
Department to arrange for a Returned Material Authorization (RMA).
Use ONLY genuine Gilian®replacement parts when performing any maintenance procedures described in
this manual. Failure to do so may seriously impair instrument performance. Repair or alteration of the product
beyond the scope of these maintenance instructions, or by anyone other than a certified Gilian®serviceman,
could cause the product to fail to perform as designed and persons who rely on this product for their safety
could sustain severe personal injury or death.
DO NOT operate in excessive chemical or water vapor atmospheres. Failure to follow instructions may cause
permanent damage to the equipment.
The GilAir-3 and GilAir-5 Air Samplers employ rechargeable Nickel-Cadmium batteries. ALWAYS fully
charge the battery before starting the pump.
DO NOT operate the unit with improperly maintained batteries. This can cause pump failure or faulting.
DO NOT operate the unit with a dirty or blocked inlet filter. This can cause pump failure or faulting.
DO NOT drop, crush, or roughly handle the unit, and NEVER submerge the unit in water. This can cause
pump failure or faulting.
DO NOT run the pump beyond its recommended specifications.
WARNINGS !

9
Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
Sensidyne Document No. 800880M (Rev E)
SECTION ONE
INTRODUCTION
Table 1.1
Available GilAir-3 & GilAir-5 Models
1.1 OVERVIEW
IMPORTANT
Youmustread thismanualinitsentiretytoensureproper
operation of your unit.
This manual contains basic operating information for
the GilAir-3 and GilAir-5 Air Sampling Systems.
GilAir-3 and GilAir-5 Air Sampling Systems offer both
high and low flow sampling capabilities. These capa-
bilities range from 1cc to 3,000cc and 1cc to 5,000cc re-
spectively. Table 1.1 shows the available GilAir-3 and
GilAir-5 models and modules. See Sections 3.1 & 3.2
for optional flow modules.
The Clock Timer model offers an elapsed time clock
that includes a run/hold function to pause and then re-
sume sampling. The Clock Timer Board includes a liq-
uid crystal display (LCD) and the MODE/HOLD con-
trols (See Figure 2.1).
The Program Timer model offers run/hold and delayed
start functions, as well as the capability to program up
to six (6) separate sampling programs. The program
timer board includes an LCD, and the MODE/HOLD
and programming controls (See Figure 2.2).
1.2 GENERAL DESCRIPTION
GilAir-3 and GilAir-5 samplers consist of an elec-
tronic control system, a pneumatic system, and a re-
chargeable battery pack. The GilAir-3 and GilAir-5
Air Samplers share the same electronic control sys-
tem. The pneumatic system is shown in Table 1.2.
1.2.1 Basic Control Board
All GilAir-3 and GilAir-5 samplers are equipped with
a basic control board, which contains the flow con-
trol circuitry. The board also contains the On/Off
switch, flow control potentiometer, flow fault indica-
tor, and battery charge indicator.
• Flow Control Circuitry
The GilAir-3 and GilAir-5 are designed to maintain
flow within ±5% of the initial set point while the
pump is subjected to changes in load. Sensing pump
load via the motor current, the system compensates
for any changes by applying a proportional voltage
to the motor, thereby adjusting the pump speed to
maintain flow.
rebmuNtraP tcudorP ledoM etaRwolFdradnatS
111-584008R3-riAliGcisaB]IFR[nim/cc0003–058
111-805008 CR3-riAliG kcolC ]IFR[nim/cc0003–058
111-015008PR3-riAliGelbammargorP]IFR[nim/cc0003–058
10-111-584008 ]acirfAhtuoS[R3-riAliG )yrettaBo/w(cisaB ]IFR[nim/cc0003–058
10-111-805008]acirfAhtuoS[CR3-riAliG)yrettaBo/w(kcolC]IFR[nim/cc0003–058
10-111-015008 ]acirfAhtuoS[PR3-riAliG )yrettaBo/w(elbammargorP ]IFR[nim/cc0003–058
111-388008R5-riAliGcisaB]IFR[nim/cc0005–058
111-588008 CR5-riAliG kcolC ]IFR[nim/cc0005–058
111-488008PR5-riAliGelbammargorP]IFR[nim/cc0005–058

— PRELIMINARY —
Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
10
Sensidyne Document No. 800880M (Rev E)
• Flow Fault Indicator
The GilAir-3 and GilAir-5 Flow Fault Indicator lights
up if the pump is unable to maintain the flow rate
within ±5% of the set point. This can occur if the
pump is operated outside its specified performance
ranges, or when the battery pack has insufficient
charge. After 27–39 seconds of continuous operation
under fault conditions, the pump will stop. This delay
is provided so that a momentary obstruction of flow
will not result in an unnecessary shutdown of the sys-
tem. For units equipped with the optional timer
board, shutdown under fault conditions will preserve
the run time in the display. This allows the user to sal-
vage the sample data.
• Battery Charge Indicator
The battery charge indicator will illuminate when the
sampler is turned on and the battery pack is fully
charged. Since the circuit is activated by the slight over-
voltage condition common in a fully-charged battery,
the indicator will normally turn off after the sampler
runs for a short period of time.
1.2.2 Internal/External Vent Control
The internal/external vent control is located on the
top of the sampling pump. You may select the venting
control as desired, using a screwdriver, provided with
the pump. Selecting the open circle position will bent
the pump’s discharge external to the sampler’s case
(recommended for moist or corrosive sampling envi-
ronments). Selecting the closed circle will vent the
pump’s discharge internally (recommended for dust
laden environments).
Table 1.2
Pneumatic System
noitpircseD 3-riAliG 5-riAliG
pmupnotsipelgnis,nevirdrotomCDX
pmupnotsiplaud,nevirdrotomCD X
metsysgnivlavdedaol-erpdetnetaPXX
ylbmessarepmadlargetnI X X
ylbmessagnisuohretlifhguorht-eeSXX
)%02±:ycaruccA(rotacidniwolF/retematoR X X
wolFtnatsnoC:ytilibapaCwolFwoLlanoitpOXX
wolF-itluM:ytilibapaCwolFwoLlanoitpO X X

11
Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
Sensidyne Document No. 800880M (Rev E)
1.3 DISPLAY ICONS & MESSAGES
Available only on Clock Timer and Program Timer
Models.
• Flashing Battery
A flashing battery icon indicates that the battery voltage
is below its nominal value.
• Flashing Clock
A flashing clock icon indicates that the sampler is in the
programming mode.
• Non-Flashing Clock
A non-flashing clock Icon indicates that the sampler is
in the process of executing a sampling run.
• Display Letters
“D” Initial delay interval prior to starting the
first sample interval.
“R” Run Time interval.
“D” + “R” Pause interval between Run Time inter-
vals.
“C” Cycles. The number of times that the Run
Time interval is performed.
“PC” Basic program which does the simple
Timer mode.
“P1” User-defined program.
“P2” User-defined program.
“P3” User-defined program.
“P4” User-defined program.
“P5” User-defined program.
“P6” User-defined program.
“E” Programming error.
• Display Messages
“LAST” Flashes alternately with the data and
icons of the last sampling run ex-
ecuted.
“Old” Flashes alternately with the data and
icons of the sampling run executed
prior to the ”LAST” sampling run.
“SHUT”/”OFF” A reminder message to move the On/
Off switch to the Off position to con-
serve the battery charge. It indicates
that 5 minutes have elapsed since: 1)
a fault condition has terminated the
sampling run, or 2) a programmed
sampling run has reach completion
(see Section 2.3.8).
“CAL” Flashes if the air sampler is prepared
to run the pump without gathering
sampling data. Solid if the pump is
running, to enable calibration of the
sampler’s air flow rate.
• Fault Sampling Time
This number indicates the percentage of sampling time
that the pump ran while it was outside the 5% fault tol-
erance envelope during the run. The number is located
on the bottom right portion of the display.

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
12
Sensidyne Document No. 800880M (Rev E)
Figure 1.1
GilAir-3 Air Sampler (Front view)
Battery
Fault
Gilian
®
by
Substitution of components
may impair intrinsic safety.
Use only with Gilian battery
pack PN 800464 or 800464-1.
WARNING
Made in USA
4
3
2
1
Flow
Personal Air Sampler
G
A
L
R
P
e
b
y
Sub
s
may
Use
pac
k
Flow Adj.
On
Off
RFI
INTERNAL/EXTERNAL
VENT CONTROL
OPEN CIRCLE: EXTERNAL
CLOSED CIRCLE: INTERNAL
BATTERY CHARGE
INDICATOR FLOW FAULT INDICATOR
FLOW ADJUST CONTROL
BATTERY PACK
POWER SWITCH

13
Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
Sensidyne Document No. 800880M (Rev E)
Figure 1.2
GilAir-5 Air Sampler (Front view)
A
WARNING
Gilian
®
Pat. Pending Made In USA
Substitution of components may
impair intrinsic safety. Use only
specified GilAir5 battery packs.
See Labeling for intrinsic safety
approvals.
Tri-Mode Air Sampler
A
Gil ir5
Battery
Fault
5
4
3
2
1
Flow
A
Flow Adj.
On
Off
INTERNAL/EXTERNAL
VENT CONTROL
OPEN CIRCLE: EXTERNAL
CLOSED CIRCLE: INTERNAL
BATTERY CHARGE
INDICATOR FLOW FAULT INDICATOR
FLOW ADJUST CONTROL
BATTERY PACK
POWER SWITCH
RFI

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
14
Sensidyne Document No. 800880M (Rev E)
SECTION TWO
OPERATION
2.1 BASIC MODEL
2.1.1 Preparation
1. Charge the battery according to the Battery Main-
tenance instructions in Section Four.
2. Using a small Phillips screwdriver, back out the
holding screw just enough so the anti tamper cover
plate can be rotated 180°. This exposes the On/Off
switch and the flow adjust screw (See Figure 1.1).
2.1.2 Setting The Pump Flow Rate
1. Move the On/Off switch to the On position.
2. Set the pump flow rate by turning the flow adjust
screw. (Clockwise for increased flow and counter-
clockwise for decreased flow.
3. Use the built-in rotameter as a flow indicator only.
Accurate flow adjustment settings shall be made by
using a Gilibrator 2, or equivalent flow calibration
device, for calibration measurements.
4. When calibrating the sampler for flow, the sample
collection device (cyclone, impinger, filter cassette
or sorbent tube) should be in-line.
5. When the desired flow rate has been attained,
move the On/Off switch to the Off position. The
unit is now ready for sample collection.
2.1.3 Sample Gathering
Begin the sample run by switching the On/Off switch
to the On position and secure the front anti-tamper
cover. The pump will operate at the flow rate set at the
last calibration adjustment. The sampling run is termi-
nated by switching Off the On/Off switch.
2.1.4 Pull Start Operation
Applies only to GilAir-5 (PNº 800883-3) samplers
with a Pull Start Battery Pack (PNº 800869-7)
The GilAir-5 Pull Start model has a specially designed
jack that prevents operation of the unit while charging.
This Pull Start Jack may only be used as an ON/OFF
switch. Charging must be done through the original
charging socket.
2.2 CLOCK TIMER MODEL
2.2.1 Preparation
NOTE
The MODE/HOLD button must be pressed with a pointed
instrument, such as a ball-point pen.
1. Charge the battery according to the Battery Mainte-
nance instructions provided in Section Four.
2. Using a small Phillips-head screwdriver, back out
the holding screw of the anti-tamper cover plate to
expose the On/Off switch and the flow adjust
screw. (On the front of the pump.) On the left side
of the pump, back out the holding screw of the
anti-tamper cover around the display opening to
expose the MODE/HOLD button.
NOTE
The pump switches to an low-powered “sleep” mode
after five minutes of inactivity whenever the On/Off
switch is positioned in the Off position. This conserves
the battery charge.
3. If the On/Off switch is moved to the On position at
any time, the pump will begin to run and collect
data for a new sampling run. Exception: If “CAL”
is showing on the display the pump is in calibra-
tion mode. No data will be collected at this time.
2.2.2 Waking The Pump For “LAST” Run Data
Readout
1. With the On/Off switch stiff Off, and using the
pointed instrument, press the MODE/HOLD button
to wake up the pump from its low-powered
“sleep” state.
2. The “LAST” message will appear on the display,
followed by a blank screen, and then followed by
the presentation of the run time data obtained by
the last sampling run. Also on the display in the
lower right hand corner is a small digit which indi-
cates the percentage of time in which the last sam-
pling run was made with greater than ±5% (fault)
variation in the flow rate, with the maximum pre-
sentation of up to 9%. Across the lower portion of
the display may be presented one or more icons.

15
Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
Sensidyne Document No. 800880M (Rev E)
3.4
If the “CAL” display appears instead at this time,
press the MODE/HOLD button twice more to
present the “LAST” run data.
Record the “LAST” run data at this time.
NOTE
If the On/Off switch is set to On at this point, the last run
data will be lost as a new sampling run is started.
3. After 5 minutes free of any button depression, the
display will blank as the sampler returns to the
“sleep” mode. Return to Step 1 to reactivate the
unit.
2.2.3 Setting The Pump Flow Rate
1. From the “LAST” presentation, pressing the MODE/
HOLD button will change the display to a flashing
“CAL” presentation.
2. Switch the On/Off switch to the On position. The
“CAL” display will be steady.
3. Set the pump flow rate by turning the flow adjust
screw. (Clockwise for increased flow and counter-
clockwise for decreased flow.
4. Use the built-in rotameter as a flow indicator only.
Accurate flow adjustment settings shall be made by
using a Gilibrator 2, or equivalent flow calibration
device, for calibration measurements.
5. When calibrating the sampler for flow, the sample
collection device (cyclone, impinger, filter cassette
or sorbent tube) should be in-line.
6. When the desired flow rate has been attained,
switch the On/Off switch to the Off position and
replace the left side anti-tamper cover if desired.
The unit is now ready for sample collection.
2.2.4 Sample Gathering
Begin the sample run by switching the On/Off switch
to the On position and secure the front anti-tamper
cover. The display will continuously show the elapsed
sampling time for the sampling run, with the error per-
centage and running icons also shown. The pump will
operate at the flow rate set at the last calibration adjust-
ment.
2.2.5 HOLD (Pause) Feature
1. With the left side anti-tamper cover open (see Fig-
ure 2.1), the sampling operation may be inter-
rupted for breaks or lunches by pressing the
MODE/HOLD button for at least 1 second. The
pump will stop and a “Hand” icon will appear
flashing in the display window.
2. The sampling run can be resumed by pressing the
MODE/HOLD button again. The “Hand” icon will
be removed from the display window.
2.2.6 Sampling Run Termination & Recovery
1. When the On/Off switch is moved to the Off posi-
tion, the sampling run is terminated.
2. The accumulated run time minutes are displayed
for 5 more minutes, along with the icon (symbol)
data. The unit then goes into “sleep” mode to con-
serve the battery charge.
3. If you desire to exit the 5 minute run data display
to return to a blank display, perform a display self-
test (Section 2.2.7). Then, follow the instructions
for waking the pump (Section 2.2.2) to perform an-
other action.
2.2.7 Display Self-Test
1. Whenever the On/Off switch is in the Off position
and the MODE/HOLD button is pressed continu-
ously for at least three seconds, the sampler dis-
play will show the unit’s program date code (e.g.,
9644) for as long as the button is pressed.
2. Releasing the MODE/HOLD button will allow the
self-test to begin, where all elements of the five
digit positions will be individually displayed, fol-
lowed by all five digits simultaneously counting
from 1 through 9, then back down to 1.
3. Each display Icon will be individually displayed
from right to left, followed by all the icons flash-
ing twice before the display goes blank, terminat-
ing the test.
4. The test runs for about 30 seconds, but can be
greatly accelerated by pushing and holding the
MODE/HOLD button depressed.

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
16
Sensidyne Document No. 800880M (Rev E)
Figure 2.1
Display: Clock Timer Model
MODE/HOLD
GilAir/C
Clock Timer
Gilian®MODE CHANGE/HOLD
BUTTON
Use blunt pointed instrument
such as ball-point pen
ANTI-TAMPER
COVER PLATE
HOLDING
SCREW

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
Sensidyne Document No. 800880M (Rev E)
2.3 PROGRAM TIMER MODEL
NOTE
TheProgrammingbuttonsshouldbe pressedwithablunt
pointed instrument, such as a ball-point pen.
Button Configuration (refer to Figure 2.2)
▲Increase
▼Decrease
PROG Program Select / Accept Variable
Value Shown
MODE/HOLD Mode Change / Hold Operation
2.3.1 Preparation
1. Charge the battery according to Battery Mainte-
nance Instructions provided in this Manual.
2. Using a small Phillips-head screwdriver, back out
the holding screw of the anti-tamper cover plate to
expose the On/Off switch and the flow adjust
screw. (On the front of the pump.) On the left side
of the pump, back out the holding screw of the
anti-tamper cover around the display opening to
expose the MODE/HOLD, PROG, ▲, and ▼but-
tons.
NOTE
The pump switches to an low-powered “sleep” mode
after 5 minutes of inactivity whenever the On/Off switch
is positioned in the Off position. This conserves the
battery charge.
3. If the On/Off switch is moved to the On position at
any time, the pump will begin to run and collect
data for a new sampling run of the last-selected
program (see Section 2.3.8). Exception: If “CAL” is
showing on the display the pump is in calibration
mode and no data will be collected at this time.
2.3.2 Waking The Pump For “LAST” Run Data
Readout
1. With the On/Off switch still Off, and using the
pointed instrument, press the MODE/HOLD button
to wake the pump up from its “sleep” state.
2. The “LAST” message will appear on the display,
followed by a program number display, “Px” (“x”
may be the letter C or 1 through 6), which is then
followed by the presentation of the run time data
obtained by the last sampling run. Also on the dis-
play in the lower right hand corner is a small digit
which indicates the percentage of time in which
the last sampling run was made outside of the ±5%
(fault) variation in the flow rate, with the maximum
presentation of up to 9%. Across the lower portion
of the display may be presented one or more icons.
If the “CAL” display appears instead at this time,
press the MODE/HOLD button four more times to
present the “LAST” run data.
Record the “LAST” run data at this time.
NOTE
Ifthe On/Offswitchis setto Onatthis pointto beginanew
samplingrun,the“LAST”rundatawillreplacethe“Old”
run data, which will be lost at that time, as the last run
data is cleared for the new sampling run data. However,
you may retrieve the “Old” run data later by pressing the
MODE/HOLD button (with the On/Off switch in the Off
position) until the “Old” data are displayed.
3. After 5 minutes free of any button depression, the
display will blank as the sampler returns to the
“sleep” mode. Return to Step 1 to reactivate the
unit.

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
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Sensidyne Document No. 800880M (Rev E)
Figure 2.2
Display: Program Timer Model
PROG
GilAir/P
Program Timer
Gilian
®
MODE/HOLD
PROGRAMMING
BUTTONS (3)
Use blunt pointed instrument
such as ball-point pen
ANTI-TAMPER
COVER PLATE
HOLDING
SCREW

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
Sensidyne Document No. 800880M (Rev E)
2.3.3 Setting The Pump Flow Rate
1. From the “LAST” presentation (which follows the
blank display), press the MODE/HOLD button to
change the display to a flashing “CAL” presenta-
tion.
2. Switch the On/Off switch to the On position. The
“CAL” display will be steady.
3. Set the pump flow rate by turning the flow adjust
screw. (Clockwise for increased flow and counter-
clockwise for decreased flow.
4. Use the built-in rotameter as a flow indicator only.
Accurate flow adjustment settings shall be made by
using a Gilibrator 2, or equivalent flow calibration
device, for calibration measurements.
5. When calibrating the sampler for flow, the sample
collection device (cyclone, impinger, filter cassette
or sorbent tube) should be in-line.
6. When the desired flow rate has been attained,
switch the On/Off switch to the Off position and
replace the left side anti-tamper cover if desired.
The unit is now ready for sample collection.
2.3.4 Sample Gathering
From any pre-operation mode of the sampler, begin
the sampling run by switching the On/Off switch to the
On position and secure the front anti-tamper cover if
desired. The pump will operate at the flow rate set at
the last calibration adjustment. For the first 20 seconds
of the sampling run, the program number of the se-
lected program will be shown as PC or P1 through P6.
The display will thereafter continuously show the
elapsed sampling time for the sampling run or the de-
lay time until the next run time interval, with the error
percentage and running icons also shown.
2.3.5 HOLD (Pause) Feature
1. With the left side anti-tamper cover open, the sam-
pling operation may be interrupted for breaks or
lunches by pressing the MODE/HOLD button for at
least 1 second. The pump will stop and a “Hand”
symbol will appear flashing in the display window.
2. The sampling run can be resumed by pressing the
MODE/HOLD button again. The “Hand” icon will
be removed from the display window.
2.3.6 Sampling Run Termination & Recovery
1. When the On/Off switch is moved to the Off posi-
tion, the sampling run is manually terminated. A
programmed run (P1 through P6) will self-termi-
nate upon completion if the On/Off Switch re-
mains On.
2. The accumulated run time minutes are displayed
for 5 more minutes, along with the icon (symbol)
data. The unit then goes into the “sleep” mode
when the On/Off switch is Off. If the switch is On
when a programmed run has been made, the
“SHUT”/“OFF” display appears, and remains until
the switch is turned Off.
3. If you desire to exit the 5 minute run data display
to return to a blank display, perform a display self-
test (Section 2.3.7). Then, follow the instructions
for waking the pump (Section 2.3.2) to perform an-
other action.
2.3.7 Display Self-Test
1. Whenever the On/Off switch is in the Off position
and the MODE/HOLD button is pressed continu-
ously for at least three seconds, the sampler dis-
play will show the unit’s program date code (e.g.,
9644) for as long as the button is pressed.
2. Releasing the MODE/HOLD button will allow the
self-test to begin, where all elements of the five
digit positions will be individually displayed, fol-
lowed by all five digits simultaneously counting
from 1 through 9, then back down to 1.
3. Each display Icon will be individually displayed
from right to left, followed by all the icons flash-
ing twice before the display goes blank, terminat-
ing the test.
4. The test runs for about 30 seconds, but can be
greatly accelerated by pushing and holding the
MODE/HOLD button depressed.

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Gilian® GILAIR-3 & GILAIR-5 AIR SAMPLING SYSTEMS
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Sensidyne Document No. 800880M (Rev E)
2.3.8 Programming The Pump
1. When the “LAST” display following the blank
screen is showing, choose one of the programs, PC
or P1 through P6, by pressing ▲or ▼to present
the selected flashing “Px” in the display window,
where “x” may be a C or a number from 1 to 6.
2. Press the PROG button to view the value of the first
variable, Delay Time, represented by the “D” icon
in the display window. This variable controls the
number of minutes from the setting of the On/Off
switch to the On position until the occurrence of
the first air sampling run time. The “Clock” icon
will begin flashing to indicate that the programmed
variables are being changed.
3. To change the value of the Delay Time for the se-
lected program, press ▲or ▼to increment or dec-
rement the value, respectively, or simply go to
Step␣ 4. If either button is held down, the numbers
will change at an increasing rate of change after an
initial pause.
4. Press the PROG button to accept the displayed De-
lay Time value and present the value of the second
programmed run variable, the Run Time, which is
accompanied by the “R” symbol. The Run Time
variable is the number of minutes that the sampler
will run for data collection before going into the
Delayed Run state.
5. To change the value of the Run Time for the se-
lected program, press the ▲or ▼to increment or
decrement the value, respectively.
6. Press the PROG button to accept the displayed
Run Time value and present the value of the third
programmed run variable, the Delayed Run Time,
which is accompanied by the “D” and “R” symbols.
The Delayed Run variable defines the number of
minutes between successive Run Time intervals.
7. To change the value of the Delayed Run Time for
the selected program, press the ▲or ▼to incre-
ment or decrement the value, respectively.
8. Press the PROG button to accept the displayed De-
layed Run Time value and present the value of the
fourth programmed run variable, the Cycle Count,
which is accompanied by the letter “C” in the small
digit position. The Cycle Count variable defines the
number of times that the Run Time intervals are ex-
ecuted.
9. To change the value of the Cycle Count for the se-
lected program, press the ▲or ▼to increment or
decrement the value, respectively.
10. Press the PROG button to accept the displayed
Cycle Count value and return to the flashing “Px”
display. This completes the programming opera-
tions of the selected program.
NOTE
If the Run Time and Cycle Count variables are large
enough to result in a total run time of more than 9,999
minutes, the unit will remain in the Cycle Count pro-
gramming mode with a flashing “E” in the small digit
area,until avalueforCycleCountisacceptable whenthe
PROG button is pressed.