Honeywell Impact User Manual

Impact Series

Operating Instructions and Maintenance Manual

Copyright

This publication contains information partly derived from proprietary data of Honeywell Analytics. The main objective of this information is to assist in the operation and maintenance of the instrument described herein. The publication of this information does not convey any right to reproduce or use the information for any purpose other than in the operation or maintenance of the equipment described herein.

Honeywell Analytics shall not be liable for any incidental or consequential damages in connection with any deletions, errors or omissions in this Manual.

All products are designed and manufactured to the latest internationally recognized standards by Honeywell Analytics under a Quality Management system that is certiﬁed to ISO 9001:2000.

General Statement of Limited Warranty

Device Warranty Terms

Impact/Impact Pro multi-gas detector 24 months from delivery to customer*

Impact/Impact Pro CO

(Electrochemical Microcell version)

Impact/Impact Pro CO (Electrochemical Surecell version)

Impact Pro CO (Infrared [IR] version)

Impact disposable cartridge Impact serviceable cartridge

Service Warranty Terms

Replacement with new productA. within the

rst 90 days of the original warranty period.

Repair (or replacement with new or B. reconditioned product at HA discretion)

after the rst 90 days of the original warranty

period.

Components replaced under original product warranty.

Repair or Replacement outside of original warranty period.

*delivery to customer must take place no longer than 3 months from shipment by HA, otherwise warranty period is pro rata reduced.

Cartridge

2

Cartridge

2

, %LEL, % Vol Sensors

2

6 months from date of switch on / installation

12 months from date of switch on / installation

24 months from date of switch on / installation

12 months from date of installation into the

instrument provided installation takes place before the ‘INSTALL BY’ date. Pro rata after ‘INSTALL BY’ date.

Full warranty period as specied in Warranty

Terms above.

Pro-rata warranty realized as balance of

original warranty specied in Warranty Terms

above, or equivalent discounted price on a new, fully warranted instrument or component.

Warranted against same fault for 3 months from date of repair

Impact / Impact Pro / Impact Pro IR Operating Instructions

3

Warranty Conditions

The HA Limited Product Warranty only extends to the sale of new and unused 1. products to the original buyer where purchased from a HA authorized distributor or service center.

Not covered are:2.

consumable items such as dry-cell batteries, ﬁlters and fuses or routine • replacement parts due to the normal wear and tear of the product;

any product which in HA’s opinion has been altered, neglected, misused or • damaged by accident or abnormal conditions of operation, handling, use or severe sensor poisoning; or failure to maintain and calibrate the product as prescribed in the product documentation;

defects attributable to improper installation, repair by an unauthorized person • or the use of unauthorized accessories/parts on the product;

Any claim under the HA Product Warranty must be made within the warranty 3. period and as soon as reasonably possible after a defect is discovered.

If a Warranty claim is being sought it is the responsibility of the buyer to return 4. the product to the distributor or HA authorized service center along with a full description of the fault.

A warranty claim will be accepted if conditions contained within this Warranty 5. are met. When, in the opinion of HA, a warranty claim is valid, HA will repair or replace the defective product according to the terms herein.

Please note that if, in the opinion of HA the warranty claim is not valid, HA will, 6. at the option of the buyer, return the unit unaltered at the buyer’s expense, repair the unit at the then prevailing rates, replace the unit with an appropriate replacement item at the then prevailing price, or discard the unit.

In no event shall HA’s liability exceed the original purchase price paid by the 7. buyer for the product.

HA makes no other warranty expressed or implied except as stated above.8.

4

Impact / Impact Pro / Impact Pro IR Operating Instructions

Total Environmental Solutions

Ensure that you read and understand these Operating Instructions BEFORE installing or operating any part of the equipment.

Please pay particular attention to the Safety Warnings.

WARNING

The dry cell battery holder part no. 2302B2016/2302B0770 or rechargeable • battery pack part no. 2302B2015/2302B0842 must not be removed, replaced or recharged in the hazardous area.

Only the following alkaline dry cell batteries must be used in the dry cell • holder part no. 2302B2016/2302B0770:

Duracell

Rechargeable cells must not be used in the dry cell battery holder part no. • 2302B2016/2302B0770.

Do not mix rechargeable battery packs and dry cell battery packs in the same • Impact.

The instrument must be serviced only by qualied personnel trained by•

Honeywell Analytics or by a Honeywell Analytics Appointed agent. Servicing must be carried out only in a non-hazardous area.

The Impact must not be used in an oxygen enriched atmosphere.•

Refer to • Section 4. Operation for details of restrictions of use of the Impact Series.

®

MN1500 or Energizer® E91.

The Catalytic Flammable Sensor requires an oxygen content of greater than • 10% v/v to operate reliably. In circumstances where the oxygen content of the sample is less than 10% v/v, the reading displayed on the Flammable Channel should be regarded as suspect. In this situation, a Warning 54 (Low O

- Flam Inaccurate) will be generated on the instrument.

2

While Infrared Flammable Sensors can operate in a reduced oxygen content • environment, it is important to note that the electrochemical sensors in the same cartridge cannot reliably operate in a low oxygen environment.

Duracell is a trademark of the Proctor & Gamble Company Energizer is a trademark of the Eveready Battery Company, Inc.

Impact / Impact Pro / Impact Pro IR Operating Instructions

5

WARNING

Before each day’s usage sensitivity must be tested on a known concentration of the gas to be detected equivalent to 25 – 50% of full scale concentration. Accuracy must be within 0 to +20% of actual. Accuracy may be corrected by calibration.

The Catalytic Flammable Sensors sensitivity can be adversely affected by exposure to certain substances (silicon and sulphur compounds are examples). Every effort should be made to avoid exposure to these substances. Following an H repeated gassing with H sensor to verify its accuracy and a calibration performed if necessary.

S a check should be performed on the Catalytic Flammable

2

By default, no alarms are provided for the 0-100%/Volume Flammable IR sensor. The user can set up alarm levels via the ICU software.

S alarm or

2

Hydrogen (H

If -0.0% v/v for the electrochemical CO a sensor zero calibration needs to be performed in clean air. The alarm level A1 for the electrochemical CO

Do not calibrate the electrochemical CO air after the apparatus has been exposed to CO limit of the measuring range. In this case leave instrument in clean air overnight

) cannot be detected using the IR principle.

2

sensor channel is permanently displayed,

2

range must not exceed 0.5% v/v.

2

channel if CO2 is indicated in clean

2

concentrations above the upper

2

before calibration.

The calibration interval for the electrochemical CO month.

sensor shall not exceed 1

2

Dispose of the spent cartridge and its packaging in accordance with local

regulations.Donotdisposeofinre.

For WEEE/RoHS information, see the Honeywell Analytics website: www.honeywellanalytics.com.

IMPORTANT NOTICE

Honeywell Analytics can take no responsibility for installation and/or use of its equipment if this is not done in accordance with the appropriate issue and/or amendment of the relevant manual.

The user of this manual should ensure that it is appropriate in all detail to the exact equipment to be installed and/or operated. If in doubt, the user should contact Honeywell Analytics for advice.

If further details are required which do not appear in this manual, contact Honeywell Analytics or their agent.

Note

The failure to observe and abide by the above Warnings and Cautions may render void the intrinsic safety approval of the Impact Series, and may remove any right of claim against Honeywell Analytics relating to product liability or consequential damage to any third party.

6

Impact / Impact Pro / Impact Pro IR Operating Instructions

Contents

General Statement of Limited Warranty ��3 Total Environmental Solutions ��5 Instrument Labels ��10

Neotronics Equipment Labels ��10

Neotronics CENELEC (ATEX) Certification Label ..................10

Lumidor Equipment Labels ��11

Lumidor UL / CSA Certification Label .....................................11

1� Introduction ��12

1�1 Intended Use ��13 1�2 Product Overview ��14

2� Getting Started ��15

2�1 Inserting the Cartridge ��15 2�2 Charge For First Use ��16 2�3 Dry-cell Battery Insertion ��18 2�4 Sampling ��19 2�5 How to turn Impact Series on and off ��19

3� Instrument Start-up ��20

3�1 Instrument Information ��20 3�2 Selecting Location / Operator ��20 3�3 Fresh Air Auto Zeroing Sensors ��21 3�4 Sensor Warm-up Phase ��21 3�5 Testing Sensors and Alarms (Calibration and Bump

Checks) ��21

4� Operation��22

4�1 Monitoring Condition ��22

4.1.1 Display Screens .............................................................22

4.1.2 Other Displayed Symbols ...............................................23

4.1.3 Confidence Signal ..........................................................24

4.1.4 Go/No Go Option ..........................................................24

4�2 Atmospheric Alarm Conditions ��24 4�3 Alarm Condition ��25

4.3.1 Latching Alarms (default) ...............................................25

4.3.2 Non-latching Alarms ......................................................25

4.3.3 Vibrating Alarm (where fitted).........................................25

4.3.4 Resetting an Alarm ........................................................25

4�4 Fault and Warning Condition ��25

4.4.1 Warning ..........................................................................26

4.4.2 Fault Condition ...............................................................26

4�5 Safelink ��27

4.5.1 What is Safelink? ...........................................................27

Impact / Impact Pro / Impact Pro IR Operating Instructions

7

4.5.2 Using Safelink ................................................................28

4�6 Pump (Impact Pro / Impact Pro IR Only) ��30

4.6.1 Removal of the Pump Adapter .......................................33

4�7 Menus ��33

4.7.1 Flammable Gas Selection ..............................................33

4.7.2 Operator .........................................................................35

4.7.3 Calibration ......................................................................35

4.7.4 Instrument Details ..........................................................35

4.7.5 Safelink ..........................................................................36

4.7.6 Language .......................................................................36

4�8 Datalogging ��36

4.8.1 Installing the PC Software ..............................................36

4.8.2 Event Datalogging ..........................................................37

4.8.3 Gas Datalogging ............................................................37

4.8.4 Output Formats ..............................................................37

4�9 Calibration ��38

4.9.1 Contaminants .................................................................38

4.9.2 Flow Calibration – Instrument ........................................40

4.9.3 Flow Calibration – PC ....................................................43

4.9.4 Enforcer Calibration .......................................................44

4.9.4.1 Enforcer On-Screen Instructions .........................44

5� Fault Finding and Procedures ��45 6� Accessories ��46

6�1 Base Station ��46 6�2 Base Station Plinth ��46 6�3 Base Station PSU Link Cable ��46 6�4 Offline Trickle Charger ��47 6�5 Power Supply for Base Station and Trickle Charger ��47 6�6 Enforcer��48 6�7 Enforcer Gas Cylinder ��48 6�8 Flow Adapter ��48 6�9 Metal Belt Clip ��48 6�10 Instrument Webbing Clip ��48 6�11 Body Harness Kit ��49 6�12 Pump Adapter Kit ��49 6�13 10m Sample Tube Kit ��49 6�14 Earpiece ��49 6�15 Base Station PC Link Cable ��49 6�16 Safelink Cable Assembly ��50 6�17 Safelink Cable Restraint Clip ��50 6�18 Hand Aspirator Kit ��50 6�19 Sensing Probe 1m ��50

8

Impact / Impact Pro / Impact Pro IR Operating Instructions

6�20 Ball float ��50

7� Routine Maintenance ��51

7�1 Cleaning ��51 7�2 Filters ��51 7�3 Battery Charging / Replacement ��51

7.3.1 Rechargeable Battery Pack ...........................................52

7.3.2 Dry Cell ..........................................................................52

8� Routine Servicing ��53

8�1 Serviceable Cartridges ��53 Special Notes for Cl Special Notes for SO Special Notes for Electrochemical CO Charging Procedure for Impact Pro fitted with CO

Cartridges ��61

Cartridges ��54

2

Cartridges ��58

2

Cartridges ��60

2

Variant

2

Using Alkaline Dry Cells ��62 Special Notes for NO

Cartridges ��63

2

Special Notes for IR Sensors ��65 9� Spare Parts��68 10� Glossary ��70 Appendix A ��73

A�1 Fault/Warning Codes ��73 Appendix B ��76

B�1 Warranty ��76

B�2 Certification Approvals ��76

B.2.1 Impact/Impact Pro (non-IR) Approvals .........................76

B.2.2 Impact Pro IR Approvals ................................................76

B.2.3 Exam (DMT) Test Report ...............................................77

B.2.4 Safelink Connection Drawing .........................................78

B�3 Technical Specifications ��79

B.3.1 Instrument Specification ................................................79

B.3.2 Charger Specifications ..................................................80

B.3.3 Specific Speed of Response Data (Rising Gas Levels) . 80

B.3.4 Specific Recovery Time Data (Falling Gas Levels) ........81

Impact / Impact Pro / Impact Pro IR Operating Instructions

9

10

Impact / Impact Pro / Impact Pro IR Operating Instructions

Instrument Labels

CAUTION:

Impact Unit Part No. 2302B1000XXX

Poole, Dorset BH17 ORZ, UK

Comms Connection onlytoother certified Impact detectorsin hazardous area Read and understand instruction manual before operatingor servicing Replace/Recharge batteries onlyin Non Hazardous area Refer to Manual for battery types

Manufacturers Name and Address

User Cautions

Honeywell Analytics Ltd.

Product Name

Explosion Protection Mark and Equipment Group Category

Certified Ambient Temperature Range

EU Explosive Atmosphere Symbol and Certification Code as EN50014:1992

DMT Approval

CE Mark - Conforms to all EC Directives

Identification No. of AT EX Notified Body

Brazilian Approval

Australian Mines Approval

Australian Surface Approval

Certification Number

IMPACT GAS DETECTOR

Maritime Equipment Directive

Inmetro Approval

Neotronics Equipment Labels

An explanation of the information on the equipment label is shown below.

Neotronics CENELEC (ATEX) Certiﬁcation Label

An explanation of the information on the CENELEC (ATEX) certiﬁcation label is shown below.

Neotronics Impact Pro non-IR Label:

This instrument has been assessed by EXAM (formerly DMT) for performance of Oxygen, Methane, Propane, Carbon Monoxide, Hydrogen Sulﬁde and Carbon Dioxide (electrochemical cell only) channels.

The label marking indicates this: DMT 02 ATEX G 001

The instrument has been tested in accordance to the following European Standards.

EN50• 054 & EN50057: 1998 for Combustible Gases (Methane and

Propane).

EN50104: 2002 for the measurement of Oxygen.•

EN45544-1 & EN45544-2: 1999 for the measurement of Carbon Monoxide, •

Hydrogen Sulﬁde and Carbon Dioxide (electrochemical cell only).

EN50271: 2000 for the assessment of Digital Components and •

Impact / Impact Pro / Impact Pro IR Operating Instructions

Software.

MED: Maritime Equipment Directive•

PFG Nr. 41300502

11

Neotronics Impact Pro IR Label:

Product Name

Explosion Protection Mark and Equipment Group Category

Certified Ambient Temperature Range

EU Explosive Atmosphere Symbol and Certification Code as EN50014:1992

CE Mark - Conforms to all EC Directives

Identification No. of AT EX Notified Body

Certification Number

IMPACT GAS DETECTOR

CAUTION:

Impact Unit Part No. 2302B2000XXX

Sunrise, Florida 33325, USA

Comms Connection onlytoother certified Impact detectorsin hazardous area Read and understand instruction manual before operatingor servicing Replace/Recharge batteries onlyin Non Hazardous area Refer to Manual for battery types

Manufacturers Name and Address

User Cautions

Honeywell Analytics Inc.

48X6

only as to intrinsic safety for use in Class I Groups ABCD hazardous locations Class I, Groups ABCD Temp Code T4 Tamb -20° C < Ta < + 55° C

Warning - Substitution of components may impair intrinsic safety

C22.2 No. 152

Exia

UL/CSA Approval

User Warning

Product Name

Impact

Gas Detector

R

48X6

only as to intrinsic safety for use in Class I Groups ABCD hazardous locations Class I, Groups ABCD Temp Code T4 Tamb -20° C < Ta < + 55° C

Warning - Substitution of components may impair intrinsic safety

UL Approval

User Warning

Product Name

Impact

Gas Detector

R

WARNING

Assessment has only been made in the range of 0 to 100%LEL. Use of other ranges

ofammablegasmeasurementonthisinstrumentwillinvalidatethisapproval.

Lumidor Equipment Labels

An explanation of the information on the equipment label is shown below.

Lumidor UL / CSA Certiﬁcation Label

An explanation of the information on the UL / CSA certiﬁcation label is shown below.

Lumidor Impact Pro non-IR Label: Lumidor Impact Pro IR Label:

WARNING

Only the combustible gas detection portion of this instrument has been assessed by CSA for performance. Furthermore, assessment has only been made in the

0to100%LEL scale(catalyticversion).Useofotherrangesof ammablegas

measurement on this instrument will invalidate approval.

12

Impact / Impact Pro / Impact Pro IR Operating Instructions

1� Introduction

The Impact Series is a compact, portable gas monitor designed to be carried or worn without hindering the user. Its purpose is to monitor the atmosphere continuously for hazardous levels of up to four gases. Audible and visual alarms alert the user to danger when hazardous conditions are detected.

The instrument is usually supplied with four gas sensors, for detecting oxygen (enrichment and deﬁciency), ﬂammable gases (up to the Lower Explosiv e Limit) and two toxic gases (for personal safety) all housed in an easily replaceable cartridge. An alternative arrangement using infrared sensors for ﬂammable or carbon dioxide is also available.

Various sensor technologies are used to achieve this. In the vast majority of cases, electrochemical technology is used to detect oxygen and toxic gases while catalytic combustion technology is used to detect ﬂammable gases. Infrared technology is used to detect ﬂammable and carbon dioxide gases.

Two types of cartridge are available. One is disposable where the cartridge has a ﬁxed life and once this has expired the cartridge is disposed of. The other is a Serviceable Cartridge where the sensors can be individually replaced when required. The serviceable cartridge type can only be used in the Impact Pro.

Note

Throughout this manual it is assumed that the Impact Series is equipped with a Disposable Four Sensor Gas Cartridge. References to sensors not

ttedintheusersinstrumentshouldbeignored.

This manual covers all models - some features are not available on all models. Not all models are available in every country.

The instrument is supplied with dry cell batteries and holders as standard. Rechargeable batteries and charger can be purchased separately as a kit.

Impact / Impact Pro / Impact Pro IR Operating Instructions

13

1�1 Intended Use

The Impact Series has been designed to alert the user to potentially hazardous atmospheres while carrying out his/her normal duties. Therefore, the instrument must be kept switched on and worn as close to the breathing area as possible, and several accessories are provided to allow the instrument to be worn in a number of different ways:

On the chesta)

On a beltb)

Attached to a body harnessc)

The instrument is provided with various methods to enable the user to comply safely and easily with conﬁned space regulations.

CAUTION

Hand aspirated remote sampling only provides continuous gas readings as long as the bulb is being operated.

Honeywell Analytics recommends that the instrument be calibrated at least every 6 months or in accordance with customer site procedures, whichever is sooner.

Correctoperationofthe instrumentshouldbeconrmedwithtestgasofknown

concentration before each use.

If equipped with an electrochemical CO if CO

is indicated in clean air after the apparatus has been exposed to CO2

2

concentrations above the upper limit of the measuring range. In this case leave

sensor, do not calibrate the CO2 channel

2

the instrument in clean air overnight before calibration.

The calibration interval for the electrochemical CO month.

sensor shall not exceed 1

2

The use of a Honeywell Analytics Enforcer calibration accessory is strongly recommended as it enables this to be performed quickly and easily.

WARNING

A sensor which cannot be calibrated or which is found to be out of tolerance should be replaced immediately. For the disposable cartridge, a replacement cartridge

mustbetted.

14

Impact / Impact Pro / Impact Pro IR Operating Instructions

1�2 Product Overview

1

2

3

4

5

6

7

8

9

1. Buttons

2. Pump Aperture

3. Cartridge and Filter Cover Grille

4. Audible Aperture

5. Cover Grille Screws

6. Equipment and Certification Label

7. Battery Compartments

8. T ool

9. Data Connector

7

 (yellow) Moves up through menu screens, and used to increase values

 (green) Used as ‘OK’ in menus. Accepts alarms, and resets peak values

(yellow) Moves down through menu screens and used to decrease values

(red) On/Off button. Also used as ‘change’ in menus

On the top of the unit are four buttons (1). Their functions are summarized below:

Pressing any key will automatically activate the display backlight for 10 seconds. There are currently two types of instrument available - Impact and Impact Pro. The

main differences between the two instruments is that the Impact Pro supports a range of Serviceable Cartridges (see Section 8.1 Serviceable Cartridges). The other detail differences are the addition of an internal sample pump, vibrating alarm and Safelink feature.

The instrument can be further personalized by use of the Impact Conﬁguration Utility (ICU) PC software, which can be purchased separately as part of the Data Logging Kit. This allows the user to change various settings and features of the instrument including, but not limited to Alarm Levels, Autozero function, latching alarms, vibrating alarm (where ﬁtted), data logging settings and Safelink messages.

Impact / Impact Pro / Impact Pro IR Operating Instructions

15

2� Getting Started 2�1 Inserting the Cartridge

If the instrument is switched on then switch it off by pressing and holding 1.

the button. Note: if a cartridge is already ﬁtted, check that the instrument

clock is correct.

Undo the two cover grille screws (5).2.

If a cartridge is already ﬁtted then remove it by undoing the central 3.

screw.

Insert new cartridge into aperture as shown. Ensure that the point ‘4. O’ is

located correctly in the pump or molding (depending on model).

Gently tighten up the central screw to secure in place.5.

Check the condition of the ﬁlter on the cover grille (3), and if necessary, 6.

replace it.

If the unit is ﬁtted with a pump replace the pump seal.7.

Replace the front cover, and retighten the two screws (5). 8.

Wait at least 20 minutes. Then switch the Impact on by pressing the 9.

button and check no faults are reported by the instrument. If fault 4 occurs

reﬁt the cartridge.

Once the new cartridge is ﬁtted the instrument will compare it to the 10.

cartridge ﬁtted previously. The instrument will alert the user with warning

if:

the alarm levels are differenta) the number of sensors is differentb) the mix of the sensors is different.c)

Press the OK button to accept the new settings from the cartridge, or press 11.

the button to abort the change.

16

If the instrument reports a gas alarm, switch instrument off, wait 20 minutes , 12.

and switch unit on again.

Impact / Impact Pro / Impact Pro IR Operating Instructions

2�2 Charge For First Use

Instrument Lip

Locking Lip

Front

Closeup Detail

Front

Either a rechargeable battery pack or a dry-cell battery source can power the Impact. For the rechargeable battery it must be charged before ﬁrst use, to replace any battery capacity used during transit and storage.

Ensure the Base Station is connected to a suitable power source.1.

Place the instrument in the Base Station.2.

The Base Station employs a locking mechanism to ensure that the Impact is

retained under most operating conditions. To ensure this operates correctly

the following procedure should be followed:

Ensure that the Impact is oriented such that the instrument lip will be a) inserted under the locking lip.

Insert the front of the Impact at an angle such that the instrument lip b) slides under the locking lip.

Push down on the rear of the Impact such that the rear locking catch c) engages.

Impact / Impact Pro / Impact Pro IR Operating Instructions

17

Disengaged

Engaged

To remove the Impact press down on the rear locking catch. d)

PSU Connection

Base Station Link Connection

Data Transfer Connection

All 4 alarm lights will flash indicating the Impact has started charging.

While charging the instrument, the instrument will ﬂash 2 red LEDs 3.

approximately every 4 seconds. When charging is complete it will light the

green LEDs constantly. A pair of fully discharged battery packs will require

7 hours to recharge fully.

Charging algorithm is based on a timer function so if the charging cycle is

interrupted it will be necessary to leave Impact on Base Station for 7 hours

to produce steady green LED light.

WARNING

Do not charge the battery pack in a hazardous area.

Power and Base Station Link Connection Locations

18

Impact / Impact Pro / Impact Pro IR Operating Instructions

2�3 Dry-cell Battery Insertion

1

2

3

4

5

6

7

8

9

1. Buttons

2. Pump Aperture

3. Cartridge and Filter Cover Grille

4. Audible Aperture

5. Cover Grille Screws

6. Equipment and Certification Label

7. Battery Compartments

8. T ool

9. Data Connector

7

-

+

-

+

Undo the two battery compartments (7) using the supplied Allen wrench 1.

(9) provided, on the bottom of each instrument.

Release each dry-cell battery holder and remove the cells if ﬁtted.2.

Insert new cells, ensuring correct orientation by checking that the negative 3.

terminal is at the same end as indicated on the moulding. Ensure they are

of the correct type, to comply with the intrinsic safety requirements.

Replace dry-cell holders in the battery compartments, and retighten 4.

screws.

Instrument is now ready for use.5.

Note

Use the supplied Allen wrench only to remove the battery compartments. Use of unauthorized tools to attempt to remove the compartments may lead to damage not covered by the instrument warranty. Replacement Allen wrenches are available for purchase.

Impact / Impact Pro / Impact Pro IR Operating Instructions

19

2�4 Sampling

+

No Pump

Flow Hood

Hand

Aspirator

Sampling

Tube

Ball Float

With

Pump

Adapter

Sampling

Tube

1m

Sensing

Probe

In normal operation the Impact is worn on the belt, with its harness, or held by hand. Once turned on the Impact monitors the atmosphere continuously, which reaches the sensors by diffusing through the vents of the cover grille or by being pulled through by the internal pump (if ﬁtted). For non-pump instruments normal air movements are sufﬁcient to carry the sample to the sensors, and the sensors react immediately to changes in concentrations of the gases being measured in the atmosphere immediately surrounding the detector. Depending on your application and the options ﬁtted to the instrument the environment can be sampled remotely in a variety of ways, as summarized below:

CAUTION

Hand aspirated remote sampling only provides continuous gas readings while the bulb is being squeezed. Each time a reading is required, it is necessary to squeeze the bulb at a rate of one per second until the readings remain stable.

When using the built-in pump or hand aspirator ensure that the sampling tube is

notinsertedintoauid.

2�5 How to turn Impact Series on and off

The Impact has been designed for ease of use, and especially for one-handed operation - only a single button is needed to turn it on and off.

To turn the instrument on, press the • button until the instrument activates

its audible and visual alarms. It will follow the start-up sequence described

in Section 3. Instrument Start-up.

If the instrument displays an error that no cartridge is ﬁtted then follow the procedure in Section 2.1 Inserting the Cartridge.

20

To turn the instrument off, press and hold the • button for three seconds,

until it switches off. Note that on some models a password must be entered

to switch the unit off. Failure to enter the correct password will cause the

instrument to continue as though the button had not been pressed.

Impact / Impact Pro / Impact Pro IR Operating Instructions

3� Instrument Start-up

Honeywell

Impact Pro

Honeywell

Impact

English

Language

Francais

Italiano

deutsch Español

Francais

Language

deutsch Español

Italiano

Nederlands

Flammable Gas

Methane

O2 FLM CO H2S

Calibration Due

in 120 days

Flammable Gas

CH4

O2 CH4 CO H2S

Calibration Due

in 120 days

Flammable Gas

------

O2 CO2 CO H2S

Calibration Due

in 120 days

Location

Default Location

Operator

DefaultOperator

� -OK

-Change

3�1 Instrument Information

After turning the instrument on it will display the information in the following auto sequence (depending on model):

The ﬁrst display identiﬁes the model. While this is shown the alarms are tested and, if a vibrating alarm is ﬁtted this is also activated.

OR

A Language Selection Screen is then shown (ﬁrst use only). Use the s and t buttons to highlight the required language and press the 3 key to make the selection. Note that some of the languages may be ‘off screen’ - use the s and t buttons to access these.

The language can be changed at a later time, if required. See Section 4.7.6 for details.

The display then shows the gas that the ﬂammable sensor

is set to monitor, the sensors ﬁtted and when calibration is due.

Catalytic Sensor IR Sensor (CH4) IR Sensor (CO2)

The instrument logs data on the operator’s exposure, if any, to measured gases. It achieves this by requesting the operator to conﬁrm his/her identity and the location where the instrument is being used.

The screen displays the last location and operator. If these are acceptable then press the 3 button. Otherwise select a new location and/or operator by pressing the button. If the button is not pressed within ﬁve seconds, the instrument will automatically proceed to the next stage in the power-up sequence.

3�2 Selecting Location / Operator

To change the location and/or operator press the button and the display will show the current location. Press the s and t buttons to cycle through the list. Once the correct location has been found then press 3, and follow the same procedure to select the operator.

Impact / Impact Pro / Impact Pro IR Operating Instructions

21

3�3 Fresh Air Auto Zeroing Sensors

Zero sensors?

� -OK

-No

Areyou in

fresh air?

� -Yes, -No

If enabled, the instrument will prompt if you wish to zero the sensors in fresh air, to adjust for any natural drift that may have occurred. If the 3 button is pressed the instrument will then ask the user to ensure that it is being zeroed in fresh, uncontaminated air. If the button is not pressed within ﬁve seconds, the instrument will automatically proceed to the next stage in the power-up sequence.

If the 3 button is pressed the instrument will attempt to zero the sensors automatically, and display whether the procedure was successful. The oxygen reading will be adjusted to 20.9% v/v – the other sensor readings will be adjusted to 0 ppm and 0% LEL appropriately. If the button is pressed instead the instrument will use its current zero values instead and proceed to the monitoring

screen.

Note

This is a ‘soft’ (i.e. temporary) zero which will be discarded when the instrument is switched off. To permanently adjust the zero, the zero via the calibration menu must be used (‘hard zero’). See Section 4.9.2.1 for details.

3�4 Sensor Warm-up Phase

Following display of the Autozero screen it will be noted that the message ‘Cell Self Test Please Wait’ is displayed. This is displayed while the sensors are in

the warm-up phase of the start-up procedure. If the option of Autozero is declined the main gas measuring screen will be displayed with the message ‘Warm Up’ being displayed in place of the gas concentration readings. The instrument should not be used until the ‘Warm Up’ message has disappeared. The amount of time that the sensors are in warm up will depend on the sensor type. Table B.3.1 in Appendix B of this manual gives details of the warm up times for each of the sensors.

3�5 Testing Sensors and Alarms (Calibration and Bump Checks)

To maintain accuracy, the detector should be periodically supplied with a known concentration target test gas (calibration check) and if the readings differ from the applied gas concentration by more than 20%, a span calibration should be performed under conditions of standard temperature (15°C to 25°C/59°F to 77°F), humidity and pressure. Follow local regulations and your company’s policy on the frequency of testing.

Note:

If the target gas is not available in a known concentration, or is not available for testing and a surrogate gas is used, the 20% tolerance value will not apply. In this case, verify that the instrument responds to the applied gas and triggers alarms (bump test).

If using the Enforcer for calibration checking or bump testing, refer to Section

4.9.4.

For more information on test gas, contact your local Honeywell Analytics representative.

22

Impact / Impact Pro / Impact Pro IR Operating Instructions

4� Operation

020.9

00

02CO%V/V

ppm

FLM

H2S

%LEL

ppm

�

020.9

00

02CO%V/V

ppm

FLM

H2S

%LEL

ppm

�

00

CO ppm

H2S

ppm

00

CO ppm

H2S

ppm

Note

Wherever the manual says ‘select’, the procedure is to use the s and t buttons to cycle through the list, and then press 3 to select the required option.

4�1 Monitoring Condition

4�1�1 Display Screens

With no alarm conditions the display will typically show:

The gas sensors and their respective units are displayed, complete with a battery gauge monitor at the bottom. For an instrument ﬁtted with less than four sensors each unused sensor position will show ‘---‘.

Several data screens are available and these can be viewed by pressing the s and t buttons to cycle through. The symbol in the center of the screen will identify which screen is active.

Peak Screen (

This screen will alternate with a screen showing the minimum value of oxygen. In this case the

STEL Screen ( )

)

This symbol is displayed when the instrument is displaying

the peak readings for the sensors, i.e. the highest readings seen since the instrument was switched on or since they were reset. This is useful for pre-entry checks for conﬁned space entry. These readings can be reset by pressing the 3 button while this display is shown.

is replaced by �.

This symbol is displayed when the instrument is displaying

the STEL readings for the toxic sensors. The STEL is a time weighted average, measured over a 15 minute reference period. It is used to monitor exposure to toxic gases in line with current regulations and/or legislation.

LTEL Screen ( )

Impact / Impact Pro / Impact Pro IR Operating Instructions

This symbol is displayed when the instrument is displaying

the LTEL (TWA) readings for the toxic sensors. The LTEL is a time weighted average, measured over an 8 hour reference period. It is used to monitor exposure to toxic gases in line with current regulations and/or legislation.

23

Status Screen

18:33:00

22/Jan/2007

020.9

00

02CO%V/V

ppm

FLM

H2S

%LEL

ppm

This screen shows the current time, date and battery

status. It is possible to change the instrument date and time

setting as follows: Press the 3 key while this screen is displayed and the clock setting function will be activated,

with the hour ﬁeld highlighted. Use the s and t keys to change the value as required and press the 3 key to move to the minute ﬁeld. Again use the s and t keys to change the value and continue until all of the ﬁelds have been correctly set. Finally press the 3 key to store the changes. Note that the

key can be pressed at any time to abort the procedure.

4�1�2 Other Displayed Symbols

If the pump is operating correctly the pump symbol will

rotate.

If the pump ﬂow becomes blocked the instrument will

warn the user and stop the pump to prevent potential

damage. When the user accepts the warning message

the instrument will attempt to restart the pump. There is

no need to remove and reﬁt the Pump Adapter. At this

point, the user should investigate the cause of the blockage alarm. If the blockage is cleared then the pump will successfully restart. If the blockage is still present then the instrument will again warn the user that the pump ﬂow is still blocked. This will repeat until the blockage is removed.

This shows an approximation of the remaining battery capacity within

the instrument. If there is less than 20 minutes remaining battery life

then the instrument will display a ‘Low Battery’ warning.

This will be shown instead of the numerical reading for any sensor or channel that is faulty, if a zero or span calibration has failed, in instances of low oxygen and in some cases of high gas concentrations. Switch the instrument off and then back on. If this does not clear the fault then recalibrate the sensor or change the cartridge.

This indicates that the sensor output of the indicated channel has

-0

WARNING

If -0.0 v/v% for the electrochemical CO2 sensor channel is permanently displayed, a sensor zero (during boot procedure) or a zero calibration needs to be performed in clean air. The alarm level A1 for the CO

24

drifted negative. In severe cases of sensor negative drift, a Warning 51 (Excessive Negative Drift) will be shown. Please see Appendix A Warning Codes for further details on this warning message.

range must not exceed 0.5 v/v%.

2

Impact / Impact Pro / Impact Pro IR Operating Instructions

4�1�3 Conﬁdence Signal





To ensure correct operation the instrument monitors itself and will conﬁrm correct operation by giving an audible and green visual conﬁdence signal once every 30 seconds. The conﬁdence signal is given when the instrument is able to detect gas (for example the conﬁdence signal will not be given during pump or sensor calibr ation phases, or if the sensors are in warm-up).

There is a conﬁgurable option to silence the audible conﬁdence signal but the visual conﬁdence signal will still operate. If the instrument is in a low battery condition the conﬁdence signal will occur twice every 30 seconds.

Note

The audible confidence signal is the primary indication that the instrument is functioning correctly. It is therefore strongly recommended that this feature not be disabled.

4�1�4 Go/No Go Option

A conﬁgur able option is available which replaces the numeric values with a 3 symbol when everything is OK and 8 when there is or has been an alarm or fault, as shown below. All alarms operate as normal, but other functions and menus are disabled.

This display now also shows the battery capacity as follows.

The Go / No Go Option is conﬁgured using the Impact Conﬁguration Utility (ICU) PC software from the Conﬁguration Screen.

4�2 Atmospheric Alarm Conditions

CAUTION

The Impact portable gas detector has been designed for the detection of oxygen

deciencies and enrichments, ammable andtoxic gas levels. An alarm condition

indicating the presence of one or more of these potentially life-threatening hazards should be taken seriously.

In the event an alarm is activated when the measured gas concentration exceeds the pre-set alarm point.

A rapid increase in reading followed by a declining or erratic reading may indicate a hazardous combustible gas concentration that exceeds the measuring range of the Impact (i.e. greater than 100%LEL Methane). In the event of the instrument being exposed to a

veryhighlevelofammablegasthefollowingbehaviorwillbenoted.

Warning 54 (low O• over-range) and an alarm condition will be indicated.

The ammable readingwill be latched to 100%LEL Methane with an alternating•

cross on the channel.

For other sensors reading greater than the measurement range, ‘sss’ alternating with the full-scale reading will be displayed.

Impact / Impact Pro / Impact Pro IR Operating Instructions

) and an alarm condition will be indicated. Warning 52 (sensor

2

25

4�3 Alarm Condition

0

02CO%V/V

ppm

FLM

H2S

%LEL

ppm

1 2 3

There are two modes of alarm: latching and non-latching. However, the display will give the same alarm indication:

An alarm symbol will appear in the relevant section of the display. The alarm symbol contains a number, indicating the increasing severity of the alarm, with increasing frequency of the audible and visual alarms. If there is a STEL/LTEL alarm the relevant icon will appear and ﬂash.

Any alarm will cause the backlight to be switched on automatically.

4�3�1 Latching Alarms (default)

In the latched condition, once an alarm occurs both audible and visual alarms continue to operate even after the atmospheric hazard has cleared. Pressing any of the instrument buttons will clear an alarm. Any subsequent alarm will reactivate the audible and visual alarms.

4�3�2 Non-latching Alarms

In this mode, should a gas alarm occur the instrument w ould enter an alarm condition. When the readings return to normal levels the audible and visual alarms will stop.

4�3�3 Vibrating Alarm (where ﬁtted)

If this option is ﬁtted to the instrument, any alarm condition that activates the audible and visual alarms will also activate the built-in vibrating alarm.

4�3�4 Resetting an Alarm

If an alarm condition occurs it is possible to cancel the alarm by pressing any of the buttons, once the gas measurements have returned to a safe level. Otherwise, the instrument will remain in the alarm condition, but the audible alarm will be muted. Any subsequent alarms that occur 1 second after the previous alarm has been reset will reactivate the audible alarm.

4�4 Fault and Warning Condition

In addition to the gas alarms, the Impact includes a number of auxiliary alarms to safeguard proper use of the instrument. At switch-on, the Impact performs an electronic self-test that assures the user of proper performance. When the Impact detects that an electronic fault or failure condition has occurred, the audible and visual alarms are activated and an explanatory message will be displayed.

26

CAUTION

As the Impact is designed to protect from potentially life-threatening atmospheric conditions, any alarm conditions must be taken seriously.

Impact / Impact Pro / Impact Pro IR Operating Instructions