Inficon Sensistor ISH2000 Series, Sensistor ISH2000C, Sensistor ISH2000, Sensistor ISH2000P Operating Manual

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Hydrogen Leak Detector

Sensistor ISH2000

Instrument SW version 6.22 Probe SW version 1.08

Operating Manual

Publication: INFICON AB - nina60e1-d (1304) - All information can be modified without prior notice

Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Contents

1 User information........................................................................................................................... 6

1.1 Notes and safety notices..........................................................................................................6

1.2 Document outline.................................................................................................................... 6

1.3 Conventions used in this book.................................................................................................6

2 Description of equipment............................................................................................................. 7

2.1 Sensistor ISH2000.................................................................................................................... 7

2.2 Sensistor ISH2000C .................................................................................................................8

2.3 Sensistor ISH2000P..................................................................................................................9

3 Controls and connections........................................................................................................... 10

3.1 Display ..................................................................................................................................10

3.2 Push-buttons ......................................................................................................................... 11

3.3 LEDs ...................................................................................................................................... 11

3.4 Ports and connections ...........................................................................................................11

4 Precautions .................................................................................................................................. 14

4.1 When working with gas ........................................................................................................14

4.2 Hydrogen Tracer Gas for leak detection ................................................................................. 15

4.3 Interferences .........................................................................................................................15

5 Working principle....................................................................................................................... 16

5.1 Gas Sensor Technology ......................................................................................................... 16

5.2 Condition for leak detection .................................................................................................. 16

5.3 Leak Detection mode............................................................................................................. 16

6 Operating the detector............................................................................................................... 17

6.1 To Detect Leaks .................................................................................................................... 17

6.2 To Locate Leaks .................................................................................................................... 17

6.3 To Quantify Leaks .................................................................................................................18

7 Calibrate the leak detector......................................................................................................... 19

7.1 Introduction ..........................................................................................................................19

7.2 Calibration Leak or Calibration Gas........................................................................................ 19

7.3 Unit Conversion..................................................................................................................... 19

7.4 Calibration procedure............................................................................................................20

7.5 Calibration value with Calibration leak................................................................................... 20

7.6 Calibration value with Calibration gas.................................................................................... 21

8 Reference section........................................................................................................................ 22

8.1 Menu system.........................................................................................................................22

8.2 Button functions.................................................................................................................... 23

8.3 Stored values and setups .......................................................................................................23

8.4 Engineering format................................................................................................................ 23

8.5 Change Test Mode ................................................................................................................ 23

8.6 Calibration ............................................................................................................................23

8.7 Locating Mode Settings ......................................................................................................... 27

8.8 Measuring Mode Settings......................................................................................................29

8.9 APC Settings* .......................................................................................................................31

8.10 Display Settings .....................................................................................................................32

8.11 General Settings .................................................................................................................... 32

8.12 Service Settings .....................................................................................................................34

8.13 Combined Mode ...................................................................................................................36

8.14 Probe ....................................................................................................................................36

8.15 Probe Control Port................................................................................................................. 37

8.16 Printer port............................................................................................................................39

8.17 Sensistor ISH2000P installation .............................................................................................. 45

8.18 Default parameters................................................................................................................46

9 Trouble-shooting......................................................................................................................... 49

10 Sensistor ISH2000 specifications................................................................................................ 50

11 Spare parts and accessories........................................................................................................

12 Support by INFICON.................................................................................................................... 53

12.1 How To Contact INFICON ......................................................................................................53

12.2 Returning your instrument to INFICON................................................................................... 53

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13 Menu Overview .......................................................................................................................... 54

14 Declaration of conformity .......................................................................................................... 56

15 Recycling...................................................................................................................................... 57

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Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Welcome to Sensistor ISH2000

Dear customer,

You have just bought an INFICON Hydrogen Leak Detector Sensistor ISH2000. The Sensistor ISH2000 is an extremely sensitive and selective detector for hydrogen gas (H2). It is especially designed for leak detection using Hydrogen Tracer Gas (Hydrogen diluted with Nitrogen down to a safe concentration) which is the most effective and economical tracer gas for leak testing.

Sensistor ISH2000 detects hydrogen in air at atmospheric pressure with no need for vacuum pumping. It is especially suitable for applications where high sensitivity and selectivity is required in combination with simplicity, reliability and low cost.

This product complies with the requirements of European Directives, listed in the Declaration of Conformity found on page 56 in this document. These Directives are amended by Directive 93/68/E.E.C (E.C. Marking).

The use of INFICON AB products are subject to copyright and intellectual property rights in force in any jurisdiction. All rights reserved, including copying this document in whole or in any part without prior written authorization from INFICON AB.

Though INFICON AB believes reasonable efforts have been made to ensure the accuracy of the information contained in the document, it may include inaccuracies or typographical errors. INFICON AB reserves the right to change the information inside the document without further notice.

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1 User information

Read this user manual carefully before using the Sensistor ISH2000.

1.1 Notes and safety notices

This manual contains warnings and cautions concerning the safe use of the product. See definitions below.

WARNING!

Warning indicates a hazardous situation which, if not avoided, could result in death or serious injury. It is important not to proceed until all stated conditions are met and clearly understood.

CAUTION!

Caution indicates a hazardous situation which, if not avoided, could result in minor or moderate injury. It is important not to proceed until all stated conditions are met and clearly understood.

NOTICE!

Notice indicates instructions that must be followed to avoid damage to the Sensistor ISH2000 or other equipment.

Note: A Note is used to indicate information that is important for trouble-free and optimal

use of the Sensistor ISH2000.

1.2 Document outline

The document is divided in two main parts:

• Getting started

• Reference section The Getting started part consists of step by step case examples, explaining how to use

the Sensistor ISH2000 in a variety common situations. The Reference section consists of in depth explanation and additional information, which completes the user manual with all relevant information.

1.3 Conventions used in this book

In this user manual the following text style (hardware command) is used for references to hardware commands or button labels, while this text style ( used for references to software commands and menu choices.

software command) is

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2 Description of equipment

Sensistor ISH2000 can be purchased in one of three versions. A desktop model (Sensistor ISH2000), a battery operated model (Sensistor ISH2000C), and a panel mount model (Sensistor ISH2000P).

2.1 Sensistor ISH2000

Sensistor ISH2000 is equipped with a number of powerful functions making it very easy to integrate in a semi or fully automatic test system. The functions range from output of all necessary status signals and printer/communication port to an advanced Active Probe Control system (APC). This makes the detector capable of controlling advanced sample collecting devices down to simple test fixtures.

Fig 2-1. The desktop model consists of seven parts.

Item Description

Detector instrument

Hand Probe P50 (shown) or Active Probe with sensor

Probe cable C21

Power cable (the power cable is country specific and may differ)

User manual (not shown)

User manual in electronic form (on CD or USB memory stick)

Product return form (not shown)

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2.2 Sensistor ISH2000C

The battery operated model, Sensistor ISH2000C, has all the Sensistor ISH2000 features apart from the APC system. This means that only passive probes (for example Hand Probe P50) can be used. This is due to power management control. The battery, a Li-ion battery at 14.8 V, can not support the current required to operate external probes.

On the display a symbol in the upper right corner shows the battery charge status. Sensistor ISH2000C will operate for 14 hours on a fully charged battery with screensaver and mute function. And 9 hours without screensaver and mute function.

One hour charging will give about one hour of operating time. This can be done when necessary, but it is important to regularly fully charge the battery.

Fig 2-2. The battery operated model consists of seven parts.

Item Description

Detector Instrument

Hand Probe P50 (shown) or P50-Flex

Probe cable C21

Carrying case

Battery charger (the battery charger are country specific and may differ, not shown).

User manual (not shown)

User manual in electronic form (on CD or USB memory stick)

Product return form (not shown)

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2.3 Sensistor ISH2000P

The panel mount model, Sensistor ISH2000P, has identical features of the Sensistor ISH2000.

The difference is that the Sensistor ISH2000P can be installed in the operator’s panel or any other flat surface. The instrument operates on an external +24VCD power supply, provided by the customer. Mounting brackets and a panel rubber seal are delivered with the detector. See “Sensistor ISH2000P installation” on page 45.

Fig 2-3. The panel mount model consists of seven parts.

Item Description

Detector instrument

Brackets (not shown)

Screws (not shown)

O-rings seal (not shown)

User manual (not shown)

User manual in electronic form (on CD or USB memory stick)

Product return form (not shown)

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3 Controls and connections

The controls and connections are discussed and shown in this chapter.

Fig 3-1. Sensistor ISH2000 controls and indicators

Sensistor ISH2000

Combined Mode

0.0

Volume Sens Cal Menu

cc/s Air

(1.00E+01)

Item Description

1 Display

2 Loudspeaker

3 Control push-buttons

4 Earphone socket

5 Probe connector

6 LEDs

3.1 Display

The display shows:

• Indicator bar in Locating Mode and the figures in Measuring Mode.

• Eight main menus. Their positions are indicated on a horizontal scale. Change from one menu to another using the < and > buttons.

• Main menus have sub-menus, which are also indicated by horizontal scales and can be selected using the < and > buttons.

• Scales for setting numeric values, languages, etc.

• Messages.

Sensistor ISH2000C:

• A battery status indicator in the upper right corner.

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3.2 Push-buttons

The functions of the push-buttons are shown at the lower edge of the display. In this manual the buttons are numbered, from left to right, 1, 2, 3, and 4. The push-buttons are used to:

• Change from one menu item to another using the < and > buttons.

• Press Enter to move down to the nearest sub-menu.

• Press Save to save the set value.

• Press Undo to restore the previously set value.

• Press Esc to move up to the nearest higher level(s).

• Shortcut to reach functions as Volume Sensitivity (Sens), Calibration (Cal) and Menu.

3.3 LEDs

The two LEDs indicate the status of the instrument as follows:

• Green flashing slowly, during warming up phase.

• Green fixed light indicates that instrument is ready and hydrogen signal is below Reject Level limit.

• Periodically flashing green or red calls for calibration.

• Alternating red and green light while the instrument establishes probe communication.

• Red fixed light together with Reject on display means the instrument has detected a leak larger than the set Reject Level limit.

• Red flashing rapidly, check message on screen. (See “Trouble-shooting” on page 49.)

3.4 Ports and connections

The ports and connections are shown in Figure 3-2 on the next page.

NOTICE!

Always connect all four wires to the Power connector to 24VDC in order to operate.

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Sensistor ISH2000

Fig 3-2. Sensistor ISH2000 ports and connections (rear view).

Rear View

Item Description

1 Data output

2 Probe control port

3 Fuse

3 4

4 Power switch

5 Power input, 100-240 VAC

6 Screw hole for mounting plate

Sensistor ISH2000C

Fig 3-3. Sensistor ISH2000C ports and connections (rear view).

Item Description

1 Power switch

2 Printer port

3 Power input (From Battery charger)

4 Screw hole for mounting plate

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Sensistor ISH2000P

Fig 3-4. Sensistor ISH2000P ports and connections (rear view).

Item Description

1 Probe connection

2 Ground screw

3 Power input (24 VDC)

4 Probe control port

5 Printer port

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4 Precautions

Read this user manual carefully before using the instrument. Hydrogen Leak Detector Sensistor ISH2000 is extremely selective. Only Hydrogen Sulphide (extremely toxic) gives a comparable response to hydrogen.

4.1 When working with gas

The normal risks associated with working with all compressed gases must be considered.

WARNING!

Pure hydrogen is a flammable gas. Only use ready-made Hydrogen Tracer Gas of 5% Hydrogen in Nitrogen. This is a standard industrial gas mixture used in various industrial applications.

Note: Whenever the word Hydrogen is used in this manual it implies that the hydrogen gas is safely mixed with Nitrogen in the proportions 5% H2 95% N2.

WARNING!

Since the tracer gas mix contains no oxygen, releasing large amounts of gas in a confined space may lead to asphyxiation.

WARNING!

Compressed gases contain a great deal of stored energy. Always carefully secure gas bottles before connecting pressure regulator. Never transport gas bottle with the pressure regulator fitted.

Before connecting tracer gas: confirm that the connectors and test object is designed for working at the test pressure.

WARNING!

Pressurising objects at too high pressures can result in a burst object. This in turn can result in serious injury or even death.

Never pressurise objects that have not previously been burst tested or otherwise approved for the chosen test pressure.

Note: INFICON AB can not take any responsibility for the consequences arising from the

inappropriate use of certain test pressures.

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Pressure shocks might cause strong sounds which can cause impairment of hearing. Check that all relevant legislation and safety standards are complied with before

putting Sensistor ISH2000 into service.

4.2 Hydrogen Tracer Gas for leak detection

When pure hydrogen gas is released in air its flammability range spans from 4% to 75% of hydrogen in air. Below 4% there is insufficient chemical energy available for a flame to occur. Above 75% hydrogen there is not enough oxygen left to support a flame.

When, for example, a mixture of less than 5.5% hydrogen in nitrogen mixes with air there is not sufficient energy to support a flame, irrespective of the ratio of air-togas.

When a mixture of more than 5.5% hydrogen in nitrogen is released into air there is a region of ratios of air-to-gas where the mixture is flammable. When, for example, a mixture of 10% hydrogen in nitrogen mixes with air there is still very little energy available. Only in exceptional circumstances can a flame be self-supporting. However, such mixtures cannot detonate.

WARNING!

Hydrogen/nitrogen mixtures containing approximately more than 15% hydrogen can detonate when mixed in certain proportions with air.

NOTICE!

Never make your own mixtures. Only use readymade mixtures or use a certified hydrogen/ nitrogen mixture mixer installed by your gas supplier.

4.3 Interferences

Most tracer gas methods suffer from some sort of interference. Either the detector is sensitive to other gases or vapors, or there are other sources of the gas present to which the detector is sensitive.

Some examples of possible hydrogen sources:

• Engine exhaust

• Battery charging stations

• Cigarette smoke

• Breathing air

• Human flatulence

• Scratching on aluminum surfaces

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5 Working principle

5.1 Gas Sensor Technology

The Sensistor ISH2000 leak detector is using an extremely sensitive hydrogen gas sensor based on a metal-oxide-semiconductor field-effect-transistor (MOS-FET).

The gas sensitivity appears when hydrogen absorbs into the sensor through a metal alloy (metal hydride) layer.

Only hydrogen can diffuse into the metal and this makes the sensors practically insensitive to other substances that do not contain free hydrogen molecules.

The signals from the sensors are processed by a microprocessor which also controls the sensor temperature with high accuracy, and other sensor diagnostics in order to ensure perfect functionality. It also automatically compensates for background gas.

5.2 Condition for leak detection

To use the leak detector the test object must be filled and pressurized by tracer gas (95% N welding gas of industry quality, easy to obtain at low cost. The generic name is Forming Gas. Appropriate gas filling equipment can be obtained from the leak detector supplier.

/ 5% H2) to get a gas flow through the leak. The tracer gas is a standard

Be careful of how tracer gases are handled after use. Released tracer gas contaminates the surrounding air with hydrogen and can complicate the following measurements for a time. Ensure that the tracer gas is ventilated away from the target area, preferably to the outside of the building.

5.3 Leak Detection mode

The detector operates in three modes:

• Locating Mode is mainly used for detecting and locating leaks but not quantifying them.

• Measuring Mode measures the concentration of hydrogen.

• Combined Mode, (default mode) which is a combination of Locating and Measuring Mode.

The Locating Mode operates continuously while the Measuring Mode determines the hydrogen concentration (and calculates a corresponding leak rate) in a step measurement. Locating Mode gives no numbers. It therefore needs no actual calibration. The sensitivity of the sound signal and the moving bar on the display is set manually or automatically, see below.

When using the instrument in Measuring Mode, it must be calibrated as described. See “Calibrate the leak detector” on page 19 in order to give correct figures.

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6 Operating the detector

6.1 To Detect Leaks

If all you wish to do is to detect the presence of a leak, that is, find out whether there is a leak or not, then use the Locating Mode (or use the Locating bar in Combined Mode). The definition of Leak/No Leak will then simply be ”A leak is a leak when it can be detected by the detector, set to a specific sensitivity”.

To set up:

The operation in increase and decrease with the gas concentration. Therefore, there is no actual calibration to be done, but rather a setting of the sensitivity to a desired level.

A typical set-up procedure for Locating Mode is:

• Set up a Calibration leak which corresponds to the smallest leak you wish to detect.

• Put the probe close to the Calibration leak and note approximately what reaction you get (no reaction, small, medium, high, full scale) within the first few seconds.

• Set the sensitivity. This can be done permanently under the menu Locating Mode Settings or temporarily as a Direct Sensitivity Adjustment on the display (unless you have set this function to OFF under the Locating Mode Settings menu).

There is also an Auto ranging function which can be selected under the Locating Mode Settings menu.

Locating Mode is not quantitative. The audio and visual signal will

Note: If the

Locating Mode is used and the alarm function is required to be

activated at a particular calibrated level, then the unit must be calibrated in accordance with the instructions, see “Calibrate the leak detector” on page 19. The reason for this is that the alarm is based on the Measuring Mode when the

6.2 To Locate Leaks

Note: The Locating Mode (or use the Locating bar in Combined Mode) is used to

locate leaks. This mode is semi-quantitative, that is, it gives an audio and visual signal which increases as a leak is approached (a higher gas concentration) and decreases as you move the probe away from the leak. It does not display figures. In this mode of operation leaks can easily be detected using a sensitivity which can be preset. See “Sensitivity” on page 28 and “Direct Sensitivity Adjustment” on page 28.

Leaks can be located very accurately, even when there are other leaks nearby. If, for example, you are trying to locate a leak on a product and the product has a major leak, then you will get an audio signal as soon as the probe is placed close to the product. When the probe is moved around and over the product, the signal will increase as the probe approaches the leak. If the signal goes out of scale, simply reduce the sensitivity setting to bring the signal within the scale. Working with the sensitivity setting this way you will be able to locate multiple leaks that are in close proximity to each other.

Locating Mode is displayed.

Note: Working inside a confined space such as, for example, a cabinet or a narrow

passage on a combustion engine there is a risk that the background concentration accumulates to levels close to the upper detection limit of the detector. In such case it will not be possible to locate leaks as easily as in open spaces.

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Hint: It is good practice to detect a leak, locate it, and immediately remove the probe to avoid saturation. The probe is not damaged by the exposure but it will recover more slowly. After excessive exposure it will be less sensitive for a short period of time.

6.3 To Quantify Leaks

The Measuring Mode (or use the figures in Combined Mode) is used for measuring the size of a leak (or the concentration of a gas sample). To be able to do this measurement and obtain correct values, the instrument must first be calibrated using the calibration function.

In the Measuring Mode the detector determines the gas concentration from the change, as the probe goes from being exposed to background to being exposed to a certain gas concentration. The detector does not continuously monitor the gas concentration but takes just one reading instead. Another suitable alternative name for this mode could be Sampling Mode. It is important to keep this in mind when using the detector in this mode.

In Measuring Mode the probe should be moved directly from a background situation to the test point. The size of the leak in cc/s, or any other selected units, is shown on the display. The probe can and should be removed from the measuring point as the measured value steady and remains on the display. The period during which the measured value is displayed can be adjusted in the Measuring Mode Settings menu.

The leak detector operates in the range 0.5 - 2000 ppm H

giving linearity between 0.5

and 500 ppm. To obtain greatest accuracy over this range, follow the calibration recommendation. See “Calibrate the leak detector” on page 19.

CAUTION!

• Do not open detector! Service of this equipment may only be carried out by service organizations authorized therefore by INFICON, Sweden.

• If the detector gets outer damage it must be controlled and repaired by service organization authorized by INFICON.

• Do not expose the probe to a hydrogen concentration higher than 0.1% when the instrument is not put into operation, this might damage or destroy the probe sensor.

• When the instrument is put into operation the sensor withstands temporary exposure to hydrogen concentration up to 100%. Avoid long exposures to high concentrations.

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7 Calibrate the leak detector

7.1 Introduction

The leak detector is the instrument and the probe together.

This section of the operating manual consists of step by step examples on how to calibrate the detector in the most common cases. For more about the calibration routine, see the reference section.

The instrument must be calibrated by using the integrated calibration function to make sure it displays the correct values in Measuring Mode. After calibration, the instrument will show the correct measured values on the display in

and in Combined Mode. The calibration parameters will be stored in the probe.

7.2 Calibration Leak or Calibration Gas

There is a possibility to calibrate the detector by using Calibration Gas or a Calibration Leak.

A Calibration Gas contains a well-defined concentration of Hydrogen gas mixed with air. A Certificate will normally follow the gas bottles. Calibration Gas can be ordered from local gas suppliers.

Measuring Mode

A Calibration Leak is a well–defined gas leak. The Calibration Leak should be fed by the same gas used in the detection test and with a gas pressure defined in the Calibration Leak certificate. Calibration Leak can be ordered from the detector provider.

Choose a calibration leak or calibration gas size, as follows:

• Same or higher than the Reject Level (but maximum 10 times higher)

• In one of the following ranges:

5 to 400 ppm H 1x10-5 to 4x10-3 cc/s (mbarl/s) defined for air

3 to 120 g/yr defined for R134a

Please contact the provider of the detector for help to select optimal calibration reference for your application.

7.3 Unit Conversion

When using flow units (other than “ppm” and “custom”), the instrument automatically converts between the calibration unit and the measurement unit. The conversion is saved in the Correlation value and is updated when Calibration Unit or

Measuring Unit is changed. Leak Gas and Displayed Gas will not change Correlation Value, but will have effect on the measured figures.

If “ppm” or custom unit is chosen (Measuring or Calibration Unit), the Correlation Value must be set by operator. To set Correlation Value go to menu General Settings.

Correlation Value can be modified even otherwise.

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7.4 Calibration procedure

Before calibration, the Calibration Value, Calibration Unit and Leak Gas in the Calibration

must be set. See “Calibration value with Calibration leak” and “Calibration

value with Calibration gas” below.

Let the instrument be in operation for at least 30 minutes to achieve the best conditions for a calibration.

When calibrating, do the following steps:

1. Go to Menu then Calibration/Calibrate/Enter or just push the button “Cal” on the main screen.

2. Expose the probe to background.

3. Push the

4. Expose the probe for the Calibration gas/leak

The probe does not have to be exposed to the calibration gas during the entire

Calibration Time (the time set in the Calibration menu while the bar is moving). The

instrument only measures the change as the probe goes from the background air to calibration gas.

While the calibration time bar is moving, the probe should be exposed to the Calibration gas or Calibration leak. Wait until the instrument shows “Gas detected” and gives a sound signal. Repeat until you can save the calibration by pressing probe button. If the calibration is not saved, the instrument will revert to the previous value after one minute.

Start button or push the probe button.

Save or

Note: You will need to repeat the gas exposure procedures 2-3 times to get

Calibration OK after changing setup or probe. The text “Calibration failed! Check leak/gas and sensor status”

(or a custom text) will appear after 5 attempts.

• Allow at least 30 seconds between each exposure for best accuracy!

• If the message “

No gas or Unstable Signal” is displayed repeatedly - go back to

Locating Mode and check functionality.

• If “

Calibration in progress. Please repeat again” is displayed it means that the

measured value deviated more than 10% from the previous calibration. Repeat the calibration procedure.

7.5 Calibration value with Calibration leak

When measuring leak flow you will, in normal cases, calibrate the detector with a Calibration leak.

Set the set the Calibration leak. Finally set the Leak Gas that the leak is defined for. These values can be found on the calibration certificate issued for the leak. Finally set the Leak Gas that the leak is defined for. These values can be found on the calibration certificate issued for the leak.

Calibration Value equal to the calibrated flow of your Calibration leak. Also

Calibration Unit to the same unit as that used to express the leak rate of the

Example: Calibration leak rate is defined to: 4.2E-5 mbarl/s for Helium.

1- Set

2- Set

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Calibration Value = 4.2E-05. Calibration Unit = “mbarl/s

Hydrogen leak detector Sensistor ISH2000 - Operating Manual

3- Set Leak Gas = Helium

Note: Feed the Calibration leak with hydrogen tracer gas at the pressure stated on

the Calibration certificate. If another pressure is used you must correlate the resulting flow and use this value as

Calibration Value.

Note: The resulted concentration from the Calibration leak should be within the

concentration range of 5 ppm - 400 ppm H

7.6 Calibration value with Calibration gas

When measuring hydrogen concentration (instead of leak flow) in most cases you will calibrate the detector to a Calibration gas with a known concentration.

Set the gas. This can be found on the certificate of analysis issued for the gas. Also set the

Calibration Unit to ppm.

Example: Calibration gas contains 10 ppm Hydrogen in synthetic air.

1- Set the

2- Set the

Calibration Value equal to the Hydrogen concentration in your Calibration

Calibration Value = 10 Calibration Unit = “PPM”

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8 Reference section

This section of the user manual consists of an in-depth explanation and additional information, which completes the operating manual with all relevant information.

8.1 Menu system

The menu system is designed as a tree structure similar to that used in mobile telephones. The display shows all the levels when browsing down through the menus so that you can always see exactly where you are. See “Menu Overview” on page 54.

Fig 8-1. Sensistor ISH2000 start screen.

Combined Mode

0.0

(1.00E+01)

cc/s Air

CalSensVolume Menu

1 2 3 4

To enter the menus, press Fig 8-2. Sensistor ISH2000 main menu screen

Press

< and > (button 2 and button 3) to choose between main menus.

If no setting is made in a menu or its sub menus within 60 seconds, the instrument will revert to the

Locating Mode/Measuring Mode.

Menu (button 4).

Change Test Mode

MenuEsc < >

For more information about the menu, see “Menu Overview” on page 54.

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8.2 Button functions

The buttons may change functions in different menus. Always read the text, just above the buttons in the display, for the button functions.

All changes in values are valid only when saved using the (button 4). All changes is saved into the instrument. Only Trigg Level is stored into the probe.

Use the

Undo or Esc button (button 1) to delete a change in value and revert to the

previous setting. Use the

position To change quickly from

Esc button (button 1) to browse backwards through the menus to the start

Locating Mode/Measuring Mode.

Locating Mode to Measuring Mode or vice versa, press button 4

three times in succession.

8.3 Stored values and setups

All values and instrument setups is saved into the instruments memory. Only the Trig Level is stored into the hand probes memory. That mean that you easily can change

the probe to another one and still keep your setup.

8.4 Engineering format

Save or Enter button

Some of the parameters of the detector are written in engineering format. This format can represent a very wide range of numbers from very small to very large numbers.

The following examples describes the format used in the detector:

1.00E+01 = 1.00 x 10

1.00E+00 = 1.00 x 10

1.25E-02 = 1.25 x 10-2 = 0.0125

8.5 Change Test Mode

Choose the test method you will use in the menu Change Test Mode. There are three different methods to choose:

• Measuring Mode

• Locating Mode

• Combined Mode* * Not in ILS500 Mode

See Reference section for a description of the functions.

8.6 Calibration

= 10

= 1

Calibrate

The instrument must be calibrated by using the integral calibration function to ensure it displays the correct values in calibration the instrument will show the correct measured values on the display.

If the probe is replaced with another probe a new calibration must be performed.

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Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Sensitivity too low for reject level

The Detector will warn if sensitivity of sensor is too low to safely detect a leak equal to the set Reject Level limit. The warning can be ignored and calibration updated and the CAL_CONF output will be set.

High signal! Check calibration leak/gas!

The Detector will warn if the calibration signal is unreasonably high. This can occur, for example, if 5% tracer gas mix has been used instead of proper Calibration gas or if the Calibration leak has an extra non-intentional leak. The warning can be ignored and the calibration updated and the CAL_CONF output will be set.

Sensor condition indicator

The indicator bar extends in length when the sensor is detecting Calibration gas. This indicator can be used for an early warning as to when a sensor replacement will be needed.

Fig 8-3. Sensor condition indicator.

Calibration

Expose to calibration gas

Calibration Value = 1.00+01 PPM

Gas detected

Esc

The length of the bar shows the condition of the sensor. The bar will become shorter if the sensor has lost some in sensitivity. The scaling of the indicator is not precise enough to say at exactly what length the sensor must be replaced. You will learn when this happens for your particular application. The instrument will also tell you in clear text when sensitivity is too low. See further in the next section below.

Calibration messages

Table 8-1. Different messages that can be displayed during calibration.

Message Explanation Action

Expose to background... Prepare the probe for

calibration.

Gas detected Gas signal is detected.

The probe has had enough gas exposure.

Calibration in progress Please Repeat again

Calibration OK Calibration was within

Calibration was not within 10% of last.

acceptable limit.

Hold the probe in hydrogen free background.

Remove the probe from the calibration gas or leak.

Wait 30 s and calibrate again.

Press Save (button 4) to store calibration in memory.

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Message Explanation Action

No gas or unstable signal. No gas signal or no stable

signal detected during calibration.

Signal when Calibration gas is shut off. Happens for Calibration gas only.

Background is higher than Calibration gas concentration.

Sensitivity too low for Reject level

High signal! Check Calibration leak/gas!

Sensitivity of sensor is too low to guarantee correct response to a gas flow or concentration equal to the Reject level. The most likely reason is that sensor is too old.

Calibration leak/gas signal is abnormally high.

Check if Calibration leak/ gas valve is shut. Check that probe tip is not clogged.

Check the calibrate gas valve.

Improve ventilation

Check Calibration leak/ gas. Gas valve may be shut. Check that probe tip is not clogged. Check setting of Reject Level. Replace sensor if problem remains.

Check that Calibration gas mix is not replaced with tracer gas mix. Check condition of Calibration leak. Check that Calibration leak connections has no leaks.

Note: If calibration fails you can still use the instrument. Last valid calibration

parameters will be used. You should, however, check that the instrument reacts to the Calibration leak/gas.

Calibration Value

Your Calibration should have a concentration or flow equal to or slightly above what you want to measure. See the examples below for specific recommendations.

Example for Calibration gas:

• Reject Level is set at 8 ppm

• For good accuracy, use a Calibration gas between 5-80 ppm hydrogen.

• 8 ppm hydrogen in synthetic air will give best results.

Example for Calibration leak

• Reject Level is set at 2.0E-4 atm. cc/s

• For best accuracy use Calibration leak within 2.0E-4 - 2.0E-3 atm cc/s.

• A Calibration leak calibrated to 2.0E-4 atm. cc/s will give best accuracy.

Calibration Unit

The Calibration Unit is set in the Calibration menu. Select ppm, cc/s, cc/min, SCCM, g/yr, oz/yr, mbarl/s, mm enter any unit as long as it contains a maximum of 12 characters.

/s, mm3/min, Pa m3/s or Custom. When you select Custom you can

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Calibration can be performed with:

• a known hydrogen concentration

• a known flow leak

The following characters can be used: Upper and lower case Roman letters, the numbers ü,

Note: The space (““) is not supported. The leak rate unit string will be cut short at

the first space found. See “Engineering format” on page 23.

Leak Gas

Leak Gas is the gas the Calibration Leak is defined to.

Calibration Time

The Calibration Time decides how long time the detector looks for a Calibration signal before giving up. If the calibration is set to, for example, 6 seconds the detector will record the maximum signal during 6 seconds after that the operator (or external hardware) orders a calibration.

It is very important that all delays in gas exposure as well as reaction time of sensor are taken into consideration when setting the calibration time. Calibration will not be correct if the maximum signal comes after that the calibration time has terminated.

ü, Å, Ä,Ö, å,ä,ö,%,/,(,),and - (dash).

Interval

This is also the timeout of the Calibration line in an APC program.

Calibration is a natural part of leak measurement and an important factor in quality assurance. It is impossible to specify an exact requirement for the interval between the calibrations because the applications for which the instrument is used can vary considerably.

There will be some oxidation of the probe sensor, which reduces the sensitivity, if the probe sensor:

• is not subjected to gas for a lengthy period or

• is exposed to a very small gas concentration (less than 10 ppm) with long intervals between exposure.

If the instrument is subjected to a very large gas concentration over a long period, a certain amount of insensitivity can occur directly afterwards. This saturation can make it difficult to detect very small leaks. Therefore, make it a habit of removing the probe from the measuring point as soon as the measured value is displayed. This gives the detector an opportunity to recover.

In the menu Calibration/Interval there is a setting where it is possible to set a reminder to calibrate the instrument. The interval can be set between 1 min to over 100 days. When it is time to calibrate, the instrument will signal with the text Calibrate! in the display together with sound. If the interval time is set to 0, the reminder function is switched off.

Function Calibration Interval can be used to remind the operator to perform a calibration.

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Password Protected Calibration

If desired, the calibration can be set under the general password to prevent the operator from calibrating by mistake. In this case you will have to enter the password to start the calibration routine. Setting password protection on calibration is done in the

General Settings menu. Note that you must also set a password. The

instrument is delivered with no password set.

8.7 Locating Mode Settings

In Locating Mode, the signal is displayed in the form of a bar. The length of the bar varies with the gas concentration.

To Detect Leaks

If all you wish to do is to detect the presence of a leak, that is, to find out whether there is a leak or not, then use the Locating Mode. The definition of Leak/No Leak will be” A leak is a leak when it can be detected by the detector, set to a specific sensitivity”.

To set up: The operation in Locating Mode is not quantitative. No figures are given but the

signal is still increasing and decreasing with gas concentration. Therefore, there is no actual calibration to be done, but rather a setting of the sensitivity to a desired level.

A typical set-up procedure for the Locating Mode is:

• Set up a Calibration leak which corresponds to the smallest leak you wish to detect.

• Put the probe close to the Calibration leak and note approximately what reaction you get (no reaction, small, medium, high, full scale) within the first few seconds.

• Set the sensitivity. This can be done permanently under the menu or temporarily as a this function to OFF under menu ranging function which can be selected under the

If the sensitivity is set very high, you may find the baseline annoyingly unsteady.

Note: If the Locating Mode is used and the alarm function is required to be activated

at a particular calibrated level, then the unit must be calibrated. The reason for this is that the alarm is immediately based on the Measuring Mode when the Locating Mode is displayed, due to inaccuracies in the Locating Mode signal.

To Locate Leaks

Locating mode is semi-quantitative, that is, it gives an audio and visual signal which increases as a leak is approached (a higher gas concentration) and decreases as you move the probe away from the leak. It does not display figures.

Locating Mode

Direct Sensitivity Setting on the display (unless you have set

Sensitivity Settings. There is also an Auto

Locating Mode Settings menu.)

In this mode of operation leaks can easily be detected using a sensitivity which can be preset. Leaks can be located very accurately, even when there are other leaks nearby.

If, for example, you are trying to locate a leak on a refrigerator condenser tubing and the tubing has a major leak, then you will get an audio signal as soon as the probe is placed close to the condenser tubing. When the probe is moved around

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over the condenser, the signal will increase as the probe approaches the leak. If the signal goes off the scale, simply reduce the sensitivity setting to bring the signal within the scale. By working with the sensitivity setting in this way, you will be able to locate multiple leaks that are in close proximity to each other.

Do not expose the probe to more gas than is necessary, because it will slowly saturate with time. It is good practice to detect a leak, locate it, and immediately remove the probe to avoid saturation. The probe is not damaged by the exposure but it will recover more slowly. After excessive exposure it will be less sensitive for a short period of time.

Background Compensation

There is always some hydrogen gas in the background. In fresh air this is as low as

0.5 ppm (parts per million).

Sensistor ISH2000 actively adjusts itself to the background. This is done automatically at start-up and thereafter, it slowly adapts itself to slow variations in the background concentration. By adjusting slowly (minutes) it avoids mistaking an actual leak for an increased background and vice versa. Therefore, a sudden rise in background concentration will be detected. However, if the concentration remains constant it will be gradually canceled out over a period of several minutes.

For example, if the background concentration for some reason should suddenly rise to 10 ppm H slowly decline to zero. If you thereafter expose the probe to a leak which gives rise to another 10 ppm H there were no background concentration.

, then the detector will give a corresponding signal which will very

, then the detector will give essentially the same signal as if

Sensitivity

Sensitivity of audio signal and signal bar in Locating Mode.

Note: This does not affect the Measuring Mode.

Auto Range

Set this parameter to ON for auto ranging of sensitivity in Locating Mode. Sensitivity will decrease two steps if the signal reaches full scale. Sensitivity is restored to selected Sensitivity when signal returns to zero.

Direct Sensitivity Adjustment

Setting this parameter to OFF will remove the sensitivity adjustment from the

Locating Mode display. Sensitivity can still be adjusted in the Sensitivity Settings menu

after entering password (if set).

Note: The sensitivity setting only affects the Locating Mode and Combined Mode.

Audio Threshold

Makes it possible to mute the sound to a set level in Locating Mode. The level is in % of full Locating bar.

Reject Indication

Makes it possible to show the indication Reject in Locating Mode.

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Audio Ready Pulse

This sets the standby sound to a silent or pulsating tone.

8.8 Measuring Mode Settings

In Measuring Mode the measured value is displayed in figures. The default unit is in cc/s but it is possible to choose other units, See “Default parameters” on page 46.

To Measure Leaks

The Measuring Mode is used for measuring the size of a leak (or the concentration of a gas sample). To be able to do this measurement and obtain correct values, the instrument must first be calibrated using the calibration function.

In Measuring mode the probe should be moved directly from a background situation to the test point. The size of the leak in ppm, is shown on the display. The probe can and should be removed from the measuring point as the measured value remains on the display.

The period during which the measured value is displayed can be adjusted in the

Measuring Mode Settings menu.

Reject Level

Threshold level for Reject decisions. When this level has passed Reject it will be indicated by audio and LED signals.

Note: The frequency of the acoustic signal in Measuring Mode is controlled by Reject

Level

frequency despite the actual signal strength.

Measuring Unit

The Custom Measuring Unit is the unit to be displayed during measurement. The measured value will be automatically calculated for other flow units. For

example, if you calibrate with cc/s and want the instrument to show cc/min, the displayed value is adjusted by a internal factor of 60.

If PPM or Custom units are selected there will not be an automatic conversion factor calculation. If a unit conversion is needed, the conversion factor must be calculated manually and inserted into the Correlation Value (under General Settings).

The

Correlation Value is always set to 1 when the PPM or Custom units are selected,

but is adjustable afterwards.

. A signal equal to the Reject Level will always give the same audio

The

Measuring Unit is a text string with a maximum of 12 characters.

The following letters can be used; Upper and lower case English letters, the numbers 0 to 9, Å, Ä, Ö, å, ä, ö, %, /, and -. Space (““) is not supported. The string will be shortened after the first space found.

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Displayed Gas

Displayed Gas is the unit shown on the display. If another gas is chosen, the

measured value is automatically recalculated.

Note: When selecting different types of gas it is assumed that the same type of

tracer are used in both calibration leak and test objects (typically 95% N2 /5% H2). The conversion of different types of gas assumes laminar flow in the leak, which is normal. The instrument displays the total flow of the tracer gas.

Multipoint Measuring

Summing up of the Measuring result. A fixed or moving number of measurements with a maximum 25 measurement points can be chosen.The instrument must be in Measuring Mode or Combined Mode for this function to be active. Standard probe button functions is not available when using Multipoint Measuring, only in Locating Mode.

To use Multipoint Measuring

If a fixed number of measurement points is used then measure according to the following steps:

1. Push the probe button to begin the first measurement.

2. Place the probe on the measurement point during the time the bar moves. The

instrument registers the results.

3. You might need to wait until the next measurement. The instrument signals-

4. Repeat the procedure for the next measuring point.

Wait.

When all measurements are made the sum of all leaks is shown. If the sum of all leaks is greater or the same as the leaks is under the greater than

Reject Level then ACCEPT is shown. And if the sum of all leaks is

Reject Level before all measurements are made then REJECT is shown.

Reject Level then REJECT is shown. If the sum of all

Use < > to view individual measurements. To begin a new measurement action or to stop a current measurement push the

probe button and hold the button for a moment. It is possible to measure or search in Combined Mode for a leak without registering

the measurement. The measurement value registers only when the staple moves (Multipoint Measuring Time).

If a dynamic number of measurement points is selected then do the measurement in the following steps:

1. Push the probe button to begin the first measurement.

2. Place the probe near the measurement point during the time the staples move

(Multipoint Measuring Time).

3. You might need to wait until the next measurement. The instrument signals-

Wait.

4. Repeat the procedure for the next measuring point.

5. To sum up all the measurements, push and hold the probe button a short time.

Multipoint Measuring Time

Set the time for each measurement.

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Min Presentation Time

Signal values in Measuring Mode will never be presented shorter than this time. Values are, however, always presented until the signal has recovered. The default value is 1 second, but values from 0 - 120 seconds can be used.

Display Threshold

Hides all measurements under a set % of Reject Level.

Audio Threshold

Instrument is silent under a set % of Reject Level.

Reject Indications

There are three choices of Reject Level indications except the LEDs indication:

• Flashing screen

• Chopped audio signal

• Combination of indication 1 and 2.

Show Reject Level

Shows the Reject Level value on the display.

Audio Ready Pulse

This sets the standby sound to a silent or pulsating tone.

8.9 APC Settings*

APC is an abbreviation for Active Probe Control. APC is used to control an active probe via the Probe Control Port. There are several active probes available. Choose correct probe under the menu Probe Type. Customized APC drivers can be downloaded from a PC.

There is a possibility to adapt how to measure by adjusting the timers and

Level

* Not in Battery Mode

Probe Type

Select the connected probe. When a custom driver is downloaded, it will replace “No driver installed”.

APC Time A-D

Adjustable timer used by the APC system. APC timer can be used for general purposes in a custom APC program.

Purge

Purge Level

Standard probes that support active sampling use the Purge Level for fast interruption of sampling.

Setting cycle times for those probes.

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Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Quick purging also enhances signal repeatability.

Note: Purge level interrupts active sampling of APC probes. This means that higher

signals will be underestimated as the sensor is purged before full signal has developed.

Reset Signal

Reset the sensor signal in Measuring mode and Locating mode.

8.10 Display Settings

This section describes the different display settings of the Sensistor ISH2000.

Contrast

Contrast level of display. Higher value gives higher contrast. The contrast may need adjustment if ambient temperature changes.

Brightness

Brightness of the display lamp.

Invert Colors

Change the black to white and white to black. Useful in a dark environment to keep a high readability.

Screen Save Timeout

Display lamp will turn off if instrument is left idle for the number of minutes set by this parameter. The screen save timeout can be set between 1 and 60 minutes, the function is deactivated if set to OFF. The display lamp will return to the set brightness if any of the display or probe buttons are pressed, if a gas signal is detected or an instrument error is detected.

8.11 General Settings

This part describes the general settings of the Sensistor ISH2000.

Correlation Value

Correlation Value is used when it is necessary to correct the relation between the

detector signal and the displayed number. This might be necessary if the hydrogen concentration of the Tracer Gas, inserted into the test object is changed, e.g. when the Tracer Gas is mixed with existing air in the test object

Language

The Sensistor ISH2000 user interface contains the following languages:

• English

• French

• German

• Italian

• Spanish

• Swedish

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Measure/Print Button

Setting this parameter to ON displays Measure or Print above the button 1. Measure will be displayed for an APC-Probe or initiate a sample cycle. Pressing measurement to the printer port.

Probe Button

This is for setting the different functions with the probe button. These functions are as follows:

• Toggle Mode-makes it possible to switch between Measuring mode and Locating mode.

• Zero Locating signal in Locating mode.

• Measure/Print- makes it possible to initiate sample cycles or send the values from the hand probe measurement to the printer port.

• Probe Lamp- makes it possible to turn on and off the Probe Lamp.

Probe Lamp

Makes it possible to have the Probe Lamp ON even if the other Probe Button function is chosen.

Print for a Hand Probe. Pressing Measure will

Print will send the values from the hand probe

Change Password

The user password is a text string (max 12 alphanumerical characters) used to lock critical parameters. Setting password to an empty string (no characters) means that no password is needed to modify the critical parameters. The default is no password (“”).

Contact INFICON AB if you have lost your user password. If the

Calibration parameter is set to ON you will be prompted for a password when starting

a calibration.

Note: Setting Password Protected Calibration to ON has no effect if no password is set.

Note: APC controlled calibration can be started from the bus in both cases.

Password Protection Level

Password Protection Level sets the protection level. Standard is used when the main parameters shall be protected. High is used to

protect all settings, such as sound and display properties. Description of the different Password Protection Level

Password protected settings/ functions

Non (No password has been set)

Standard

Standard + Password Protected Calibration

Password Protected

High

High + Password Protected Calibration

Change Test Mode Yes Yes

Calibration (function)

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Password protected settings/ functions

Calibration (settings)

Locating Mode Settings

Measuring Mode Settings

Display Settings Yes Yes

General Settings Yes Yes Yes Yes

Service Settings* Yes Yes Yes Yes Yes

Non (No password has been set)

Standard

Yes Yes Yes Yes

Standard + Password Protected Calibration

High

Yes Yes

* For password to access Service Setting, please contact INFICON.

Audio Base Frequency

This sets the lowest audio base frequency tone in Measuring and Locating Mode.

High + Password Protected Calibration

Set Clock

Real time set as hh:mm:ss. Hours and minutes can be adjusted. Seconds will automatically be set to 00 when hours and minutes have been set. Clock runs even when detector is disconnected from the power supply.

Set Date

Real time clock date set as YY-MM-DD. Clock runs even when detector is disconnected from the power supply.

Data Output*

The Sensistor ISH2000 is equipped with a serial (RS232) printer port for data output. See “Printer port” on page 39.

* Not in ILS500 Mode

Info

Contains information about software versions, Serial number, and Internet contact information.

8.12 Service Settings

Service Settings contains important settings that the customer should not change without supervisor guidance. To enter Service Settings menu a password is required. Contact your local supplier for help.

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Show Password

Shows the chosen password in case the customer has forgotten the password. Contact INFICON AB to have the code sent to you. See the web address under the section-Info.

Instrument System Reset

Resets all parameters to default settings. Contact INFICON AB to have the code sent to you. See the web address under the section-Info.

Detector Signal Level

The Detector Signal Level is the level which the sensor is considered to have recovered from the last gas signal. It decides when the DET_SIGNAL output will come on. this signal can be used to block the start of a calibration or new test cycle in semi and fully automatic testers.

IF DET_SIGNAL is high then this means that the sensor has detected hydrogen and has not yet recovered.

Detector Signal Level can be adjusted in the Service Settings menu. You can increase Detector Signal Level if you have many small disturbing signals. A high setting of Detector Signal Level gives better tolerance to “noise” gas signals at the expense of

accuracy. A low setting gives best accuracy but lower tolerance for “noise” gas signals. The

Detector Signal Level is set as 1 to 100% of the Reject Level.

Note: Increasing the Detector Signal Level may give poorer accuracy.

Trigg Level

Upper Limit setting for Peak hold in Measuring Mode.

Min Calibration Time

Lower limit setting for the timer which is used during calibration. Contact INFICON AB to have the code sent to you. See the web address under section-Info.

Calibration Tolerance

The maximum difference between the different calibration measurements to approve a calibration.

Battery Mode

Selection of battery power. Only used to adapt software for the battery model.

ILS500 Mode

This mode is used to adapt the ISH2000 for use into Leak Detector System ILS500. Combine Mode and Printer Port is not available when ILS500 Mode is active. ISH2000 always start in Measuring Mode at startup.

Number of Significant Digits

Setting of significant numbers in Measuring and Combined Mode. It is used when a more exact measurement is needed. A good control of the environment and

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calibration is required to be useful. Contact INFICON AB to have the code sent to you. See the web address under section-Info.

Debug Mode

This mode is used during service and software development.

Service Mode

This mode contains useful information to analyze the gas sensor behavior and the APC I/O‘s and timers.

8.13 Combined Mode

In Combined Mode the bar and the sound in Locating Mode is combined with the figures in

The loud speaker sound follows the Locating Mode signal.

Note: After a system reset the default mode is Combined Mode.

When you have located the leak then you can measure its size in the following way:

1. Remove the probe from the leak.

2. Wait until 0.0 appears on the display

3. Then put the tip of the probe on the leak.

Measuring Mode.

8.14 Probe

The Hand Probe P50 is a non-sniffing probe. Gas Measuring takes place in a sensor that is in the tip of the probe. The probe is equipped with a function button, indicator lamps, and lighting. The probe can be ordered with a flexible neck.

During operation the heat of the probe tip is 50ºC

Note: There are a variety of different probes that can be connected to the Sensistor

ISH2000. When using an active probe please refer to the respective probe manual.

Changing the Probe

After attaching a probe the Sensistor ISH2000 needs to stabilize, and the green LED should blink. If it does not, then there is a fault in the cable or the hydrogen sensor inside the probe is faulty.

When the stabilization period is over the green LED should stay on. Before using the Sensistor ISH2000 the instrument needs to be calibrated. Repeat calibration after one hour to achieve greatest accuracy.

Changing the Probe Tip

The probe tip (sensor for P50) is replaceable and is locked with a union nut. The union nut seals against contact with moisture. If you are not sure about changing the probe tip then we recommend that you send it to an authorized service center.

To change the probe tip do the following steps:

1. Turn off the instrument.

2. Loosen the safety nut with a 10 mm wrench.

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3. Remove the union nut by hand. The o-ring in the union nut creates some friction.

4. Remove the probe tip by drawing it straight out.

5. Mount a new probe tip. Make sure it is in correct position.

6. Observe the contact area between the probe pipe and the probe neck. They

should contact each other.

7. Refit the union nut.

8. Tighten with a 10 mm wrench.

8.15 Probe Control Port

The Sensistor ISH2000 is equipped with a parallel Probe Control port. This Probe

control port

supervising computer system.

can be used for controlling active probes, feeding status signals to a

CAUTION!

The Probe Control Port (25-pin D-type) on the back of the instrument is not a computer or printer port. Connecting a printer or any other computer device may cause permanent damage to the connected device.

Note: Battery operated model Sensistor ISH2000C does not have a Probe Control Port.

Pin configuration for the different detector models is described under Model Specific Specifications below.

See “Sensistor ISH2000 specifications” on page 50 for electrical specifications. See “Status signal patterns” on page 38 for signal patterns.

Probe Control Port Connector

The control port connector is a 25-pin female D-sub. Refer to Table 8-2 for the pin configuration.

Table 8-2. Pin configuration.

Pin Type Signal name

1 - GND

2 - GND

3 - GND

4 IN IN_0

5 IN IN_1

6 IN IN_2

7 IN IN_3

8 IN IN_4

9 OUT CAL_CONF

10 OUT OUT_6

11 - GND

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Pin Type Signal name

12 - GND

13 - GND

14 OUT DET_ERROR

15 OUT LEAK_OUT

16 OUT DET_ON

17 OUT DET_SIGNAL

18 OUT DET_WAIT

19 OUT OUT_0

20 OUT OUT_1

21 OUT OUT_2

22 OUT OUT_3

23 OUT OUT_4

24 OUT OUT_5

25 OUT 24 VDC OUT

Status signal patterns

Table 8-3. Status signals for pin 14 - 18.

Signal Function

DET_SIGNAL Gas detected / Sensor not recovered.

DET_WAIT High during warm-up.

DET_ON High when detector is on.

LEAK_ALARM Leak above Reject Level detected.

DET_ERROR High if Probe, Sensor or Cable is broken.

DET_ERROR will go high for a short time (1-5 seconds) when the detector is switched on. It will go low when the sensor has been checked.

In normal operation, DET_ERROR = HIGH means that there is a problem with the sensor, probe, or cable.

DET_WAIT is high when instrument is in warm-up mode after switching on power. Instrument will also go into warm-up if there is a temporary fault in the sensor or sensor connection.

The timing of the status signals in relation to different events is described by the following two examples:

Example: Input signals issued to control the APC system should have a pulse length

of at least 40 ms.

Example: Output signals switch with a cycle time of 100 ms (0.1 s). This is the cycle

time of the APC system.

Note: Not valid for battery operated version of Sensistor ISH2000 (ISH2000C).

After power on

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Fig 8-4. Status signals after power on.

Power onPower off Warming up

DET_ERROR

DET_ON

DET_WAIT

DET_SIGNAL

LEAK_OUT

Locating or Measuring Mode. No gas detected.

When detecting a gas signal

Fig 8-5. Status signals when detecting a gas signal.

Gas signal

Purge level

Reject level

Detector signal level

0 ppm

DET_SIGNAL

LEAK_OUT

PURGE_LEVEL Trig-

ger (APC)

8.16 Printer port

The Sensistor ISH2000 is equipped with a serial printer port. This is the 9-pin D-type connector. It is used for printer connection, RS232 commands and APC driver installation.

NOTICE!

Always switch power off before disconnecting or connecting any cable.

Connector pin configuration

The printer port is a standard 9-pin male D-sub. The connecting cable is a standard 9-pin file transfer cable (Null Modem Cable). For the pin configuration refer to Table 8-4.

Table 8-4. Pin configuration of the printer port.

Pin Signal Comments

1 (DCD) Not used

2 RD Received data

3 TD Transmitted data

4 (DTR) Not used

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Pin Signal Comments

5 SG Signal ground

6 (DSR) Not used

7 (RTS) Not used

8 (CTS) Not used

9 +7 VDC Power feed USB/RS232 converter

Only pin 2 (Received data), pin 3 (Transmitted data) and pin 5 (Signal ground) are used. Refer to Figure 8-5 for the wiring diagram.

Fig 8-6. D9 Null modem cable wiring diagram

CD RxD TxD DTR

DSR

D9 Female

RTS CTS

2 3 4

6 7

8 9

2 3 4

6 7 8

RxD

TxD

DTR

SG DSR RTS CTS

D9 Female

Selectable printer types

Most PC-printers with serial interface can be connected to the 9-pin printer port. Parallel (Centronics) interface printer can be used if connected through a serial to parallel converter.

The port can be set up for the following printer types: PC Printer and Data Dump.

No printer

Printer output disabled. Incoming communication is enabled. Sensistor ISH2000 listens for incoming data but will not print/send test results.

PC printer (with serial interface)

The PC Printer option can be used to print data on most standard PC printer with serial interface. Parallel interface printers can be used if connected through a serial to parallel converter (see below).

Note: The output format has been chosen to be as simple as possible to ensure that

most printers will accept it. Therefore, the printer output does not use any flow control. This means that some printers may delay printing until the input buffer is full or a pre-defined timeout has elapsed.

Table 8-5. Communication specifications.

Setting Value

Data rate 1200 baud

Data bits 8

Stop bits 1

Parity None

Flow control None

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Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Note: Due to the large variety of printers available on the market, INFICON does not

take responsibility for the operation of a particular type of printer.

Printed data

The detector can print the following information: 1 Date and Time for Power on of detector.

2 Time of print. 3 Value of all gas signals above the Reject Level. 4 Test result: “Accept” or “Reject”. 5 Value of signal. 6 Result of calibration: “OK” or “Calibration Not saved”, Date and Time,

Parameter settings.

Printing of the current value can also be requested by an RS232 command or ordered manually by pressing

PRINT.

Table 8-6. Probe type determines information printed.

Probe type Data printed

Hand Probe P50 1, 2, 3, 4, 6

Counter Flow Hand Probe AP57 1, 2, 3, 4, 6

Sniffer Hand Probe AP55 1, 2, 4, 5, 6

Sampling Probe AP29 ECO 1, 2, 4, 5, 6

Measuring data output

The Measuring Data Output option is intended for transferring test results to a supervising computer system such as, for example, a PLC system.

Table 8-7. Communication specifications.

Setting Value

Data rate 9600 baud

Data bits 8

Stop bits 1

Parity None

Flow control None

The data format for Measure data output consists of nine ASCII characters (ten if three significant digits are used). Seven characters (or eight if three significant digits are used) show the value in engineering format (See “Engineering format” on page 23). One character shows the result of the test, and one character shows the line feed (LF).

Table 8-8. The character indicating the result of the test is one of the following.

Character Result of the test

A Accept. Previous test was below Reject Level limit.

R Reject. Previous test was above Reject Level limit.

P Rejected by Purging. Previous test was above purge limit

(and Reject level limit).

C Calibration approved. Previous cycle was calibration.

Calibration was approved.

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Character Result of the test

F Calibration failed. Previous cycle was calibration.

E Test interrupted by “Error” that occurred during cycle

(probe or sensor error etc.).

Example: 2.5E-04R (LF)

This example is a line feed (LF), R means that the test was above the Reject Level limit, and the value was 2.5E-04.

For passive probes (for example P50, AP55 and AP57*) data is printed when a signal is detected above under

Measure Button menu.

Reject Level or when the print button is pressed. Activate this

For active probe AP29, data is printed at end of measurement sequence. Printing of the current value can also be requested by an RS232 command or

ordered manually by pressing

PRINT. See “Connector pin configuration” on page 39.

* A custom APC program which sets the MEAS flag, will print as AP55/AP29 ECO and an APC program not using the MEAS flag prints as P50.

Locating data output

The Locating Data Output option is intended for automated scanning of weld seams etc.

Note: The Locating Data is expressed in arbitrary units. Locating Mode signal is not

affected by calibration!

Table 8-9. Communication specifications.

Setting Value

Data rate 9600 baud

Data bits 8

Stop bits 1

Parity None

Flow control None

The data format for Locating data output contains of nine ASCII characters. Eight characters show the value in engineering format (See “Engineering format” on page 23), and one character shows linefeed (LF).

The print time is 50Hz continuous streaming data.

RS232 serial communication

The most commonly used Sensistor ISH2000 functions can be started/configured over the RS232 interface.

Table 8-10. RS232 communication specifications.

Setting No Printer PC Printer

Data rate 115200 baud 1200 baud 9600 baud

Data bits 8 8 8

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Data Output

Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Setting No Printer PC Printer

Stop bits 1 1 1

Parity None None None

Flow control None None None

Data Output

RS232 interface commands

Table 8-11. Common used functions.

Action Command Header Data

Calibration Request K None

Measure Request M None

Print Request N None

Stop Measurement Q None

Measuring Mode X None

Locating Mode Z None

Combined Mode Y None

K = Calibration request

Starts calibration if the Sensistor ISH2000 has an active probe driver installed. Sensistor ISH2000 answers with a “K” if an active driver containing a calibration routine was found and “F” if the calibration APC sequence not found. Calibration doesn’t start if Purge level is reached.

M = Measure Request

The active test cycle defined by the APC driver starts. “M” is returned if the selected driver supports active test. “F” (failed) is returned otherwise.

N = Print Request

Returns current Measuring value.

Q = Set APC in stand by, (stop a measurement)

Returns a “Q”.

X = Shift State to “Measuring Mode”

Returns nothing.

Z = Shift State to “Locating Mode”

Returns nothing.

Y = Shift State to “Combined Mode”

Return nothing.

Table 8-12. The following data/setups can be downloaded to Sensistor ISH2000.

Setup Command Header Data

Calibration Request text CR Custom Text string

(max 35 characters) To return to the original text just leave the text string empty.

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Setup Command Header Data

Calibration Fail text CF Custom Text string

(max 35 characters) To return to the original text just leave the text string empty.

Reject Level A n.nnE+nn

Correlation Value B n.nnE+nn

Measuring Unit C Custom Text string

(max 12 characters)

Measuring Unit CUx x=1 to 11 (1=ppm, 2=cc/s up to 11)

Leak Gas LGx x=1 to 13 (1=5%H2/95%N2, 2=Air

up to 11**)

Displayed Gas DGx x=1 to 13 (1=5%H2/95%N2, 2=Air

up to 11**)

Leak Gas LG Custom text string

(max 12 characters)

Displayed Gas DG Custom text string

(max 12 characters)

Probe Type APx x=1 to 9 (1=Hand Probe, 2=Custom

Probe up to 9)

Timer A D nnn*

Timer B E nnn*

Timer C F nnn*

Timer D G nnn*

Purge Level H n.nnE+nn

Calibration Value I n.nnE+nn

Calibration Unit J Custom text string

(max 12 characters)

Calibration Unit (Program settings)

JUx x=1 to 8 (1=ppm, 2=CC/S up to 8)

* Entered as integer in 10’s of seconds, 1= 0.1s, 100 = 10s, 60000= 6000s ** Gases: 95%N2/5%H2, Air, He, N2, H2, R134a, R22, R290, R404a, R407c, R410a,

R600a, R1234yf.

Transfer of parameters

Send parameters one by one; first send the specific header (for example “A”), then send the data (for example “1.00E+01”). Data string must be ended with a carriage return character, chr13 (dec).

Example: “CPPM” or “C PPM”, Carriage Return (chr 13).

Parameters can be sent in any order you like:

• If your data was received and correct, Sensistor ISH2000 immediately echoes (sends back) the data.

• If you send a non existing header you will not receive anything.

• If the data could not be converted in the Sensistor ISH2000 you will receive the string “CoEr”, (Conversion Error).

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Note: Remember to use capitals for the header.

APC driver installation

All standard APC drivers are installed in the detector.

Note: Battery operated model Sensistor ISH2000 does not incorporate the APC

feature.

For custom APC driver design and installation contact support at INFICON.

8.17 Sensistor ISH2000P installation

The panel mount model can be installed in the operator’s panel or any other flat surface of your leak tester. Mounting brackets and panel rubber seal are delivered with the detector. Refer to Figure 8-6.

CAUTION!

The detector should preferably be mounted on a vertical surface. Tilting more than 30 degrees is not recommended. Tilting more makes air circulation poor resulting in increased temperature inside detector. This will reduce contrast of display and lifetime of lamp and electronic circuits.

NOTICE!

After installation verify that ambient temperature is below 50ºC.

Fig 8-7. Panel cut out dimensions.

Free space horisontally 300 mm (12 inches)

Free space vertically 140 mm (5.5 inches)

262 mm (10.3 inches)

127 mm (5 inches)

Measurements:

• Panel cut out: 262 x 127 mm (5 x 10.3 inches).

• Maximum panel thickness: 8 mm (0.3 inch).

• Allow an extra 20 mm (0.8 inch) on left and right side for mounting brackets.

Depth of open space in panel is at least 15 cm (6 inches) for Sensistor ISH2000 to fit.

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Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Installation process

Table 8-13. Install the detector as follows

Step Action

1. Cut hole in panel according to figure above, and

remove burrs.

2. Check that rubber o-ring is in correct position in

the grove around the edge of the detector.

3. Put the detector in place in the panel hole.

4. Hold the panel in place while fixing the mounting

brackets to the detector (See Figure 8-7).

5. Align the detector horizontally and lock it by

tightening the 4 set screws.

6. Lock the set screws with the locking nuts.

7. Connect ground terminal to protective ground of

cabinet.

Fig 8-8. Fixing the mounting brackets.

Bracket to unit

Bracket

Bracket to panel screw

See “Sensistor ISH2000 specifications” on page 50 for electrical connections

8.18 Default parameters

Table 8-14. Range and default settings of all Sensistor ISH2000 parameters.

Parameter Range Default

APC Time A 0.0 - 6000.0 s 10.0 s

APC Time B 0.0 - 6000.0 s 0 s

APC Time C 0.0 - 6000.0 s 0 s

APC Time D 0.0 - 6000.0 s 0 s

Audio Base Frequency Several Choices 400 HZ

Auto Range ON/OFF ON

Audio Ready Pulse ON/OFF ON

Audio Threshold (Locating)

Audio Threshold (Measuring Mode)

46 OM-Sensistor ISH2000-EN-201304

0 - 100% 0%

Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Parameter Range Default

Battery mode ON/OFF OFF

Brightness 0 - 21 21

Calibration Time Min Calibra. Time-30 s 8 s

Calibration Tolerance 0-100% 10%

Calibration Unit Several Choices cc/s

Calibration Value 1.00E-37 - 1.00E+37 1.00E+01

Contrast 0-20 10

Correlation Values 1.00E-37 - 1.00E+37 1.00E+00

Data Output No Data Output

Debug Mode ON/OFF OFF

Detector Signal Level 0 - 100% 20%

Direct sensitivity adjustment

Display Threshold 0 - 100% 0%

Displayed Gas Several Choices 95%N2/5%H2

ILS500 Mode ON/OFF OFF

ON/OFF ON

Interval 0 - 255 Days/Hours/Minutes

Invert Colors ON/OFF OFF

Language Several choices English

Leak Gas Several Choices H2N2

Measure/Print Button ON/OFF OFF

Measuring Unit Several Choices cc/s

Menu Mode Several Choices Combined Mode

Min Calibration Time 0 - 30 s 5 s

Min Presentation Time 120 s 1 s

Multipoint Measuring Several Choices OFF

Multipoint Measuring Time

Number of significant Digits

Password Max 12 characters “” = No password

Password protected calibration

Password Protection Level

0.0 - 30.0 s 5.0 s

2/3 2

ON/OFF OFF

Standard/High Standard

Probe Button Several Choices No Function

Probe Lamp ON/OFF OFF

Probe Type Several Choices Hand Probe

Purge Level 1.00E-37 - 1.00E+37 1.00E+02

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Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Parameter Range Default

Reject Indicator (Locating Mode)

Purge Level 1.00E37 - 1.00E+37 1.00E+02

Reject Indication (Locating)

Reject Indication (Measuring)

Reject Level 1.00-E-37 - 1.00E+37 1.00E+01

Screen Save Timeout 1 - 60 min 20 min

Sensitivity 1 - 15 8

Set Clock hh:mm:ss -

Set Date YY-MM-DD -

Show Reject Level ON/OFF ON

Trigg Level 1.00E-37 - 1.00E+37 0.00E+00

ON/OFF ON

ON/OFF OFF OFF

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9 Trouble-shooting

In case of trouble using the Sensistor ISH2000, try to solve the problem with these simple trouble-shooting guidelines. If the measures described below do not result in a functioning instrument, send or hand in the instrument to an authorized service workshop for repair. See “Support by INFICON” on page 53.

WARNING!

Opening or dismantling a Sensistor ISH2000 that is powered up can cause serious personal injury or danger to life. The instrument contains no parts that can be repaired by the user and may only be dismantled by an authorised service technician.

Table 9-1. Fault symptoms and measures.

Fault symptoms Measures

No sound in Locating Mode and Measuring Mode.

No picture on display, no sound. Check the fuse.

No picture but only sound when exposed to gas.

Press the + button repeatedly.

Display setting may be wrong. Watch the display from the side at a low angle and aim a lamp at the screen. Try to see the text so that you can enter the Display Settings menu and adjust contrast and brightness. If this doesn’t help - send in the instrument for replacement of display lamp.

Table 9-2. Error messages and measures.

Error messages Measure OBS

Check Probe and Cable. Red LED flashes quickly.

Error + (Probe Type) Error in Active Probe. See Probe Manual.

Check Sensor, Voltage Error Check that the sensor is properly

Check Sensor, Temp. Check that the sensor is properly

Probe not upgraded Upgrade probe to latest version

Check that the probe cable is properly connected to the probe and the instrument. If the fault persists, replace the probe/cable.

connected to the probe. If the fault persists, replace the sensor.

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10 Sensistor ISH2000 specifications

Table 10-1. Power supply specifications.

Power

AC mains voltage 100-240 V 50/

AC mains current Typically 1 A (2 A

Fuse 2 A slow/ 250

Nominal battery voltage

Operating time - h without screen

Charging time - 6.5 h -

Power supply voltage

Power supply current

Sensistor ISH2000

60Hz.

pulse at power on).

VAC.

- 16.1 VDC -

- - 24 VDC

- - 3 A max.

Sensistor ISH2000C

100-240 V 50/60 Hz

Typically 300 mA -

saver, at 20 C.

Sensistor ISH2000P

Table 10-2. Input and output connections.

Input/output

Power input connector

Probe control/Status port

Minimum pulse length 40 ms - 40 ms

Input impedance 50k ohm - 50k ohm

Input maximum range -34 to +38 VDC - -34 to +38 VDC

Input high > 12.0 VDC - > 12.0 VDC

Input low < 8.0 VDC - < 8.0 VDC

Output current max 0.5 A/output,

Inductive loads External clamp diodes

Low state voltage Max 1.5 VDC - Max 1.5 VDC

Sensistor ISH2000

AC input connector, IES 320.

25-pin D-sub female. - 25-pin D-sub female.

max 2.5 A total

recommended

Sensistor ISH2000C

Charger input connector, 2.1 x 5.5 mm std. Positive centre.

- max 0.5 A/output,

- External clamp diodes

Sensistor ISH2000P

4 pin Phoenix MC 1.5/

5.81 Series Detachable screw terminal.

max 2.5 A total

recommended

Low state leakage current

Short circuit protection

50 OM-Sensistor ISH2000-EN-201304

Max 100 µA - Max 100 µA

Thermal and electronic

- Thermal and electronic

Hydrogen leak detector Sensistor ISH2000 - Operating Manual

Input/output

Output high 22-24 VDC - > (Supply voltage - 2.5

Output low < 1.5 VDC - < 1.5 VDC

Serial communication port connector

Serial communication port standard

Sensistor ISH2000

9-pol D-sub male 9-pol D-sub male 9-pol D-sub male

RS232 RS232 RS232

Sensistor ISH2000C

Sensistor ISH2000P

VDC)

Table 10-3. Miscellaneous specifications.

Misc.

Protection (IEC529) IP64 (front), IP32 (back) IP63 (in carrying case) IP64 (front), IP32

Net weight 3.9 kg (8.6 lb) 4.0 kg (8.8 lb)

Overall dimensions 275 x 155 x 170 mm

Sensistor ISH2000

(11 x 6 x 7 inches)

Sensistor ISH2000C

4.9 kg (10.8) incl. case, probe and charger

275 x 190 x 170 mm (11 x 7 x 7 inches)

Sensistor ISH2000P

(back)

1.8 kg (4.0 lb)

275 x 140 x 75 mm (11 x 6 x 3 inches)

Environment temperature

Environment humidity

0-50°C 0-50°C 0-50°C

10-90% RH 10-90% RH 10-90% RH

Table 10-4. Gas sensing specification (In Locating Mode)

Selected unit Sensitivity

mbarl/s air (using 5% H2/95% N2 as

Tracer Gas)

g/yr R143a (using 5% H Tracer Gas)

/95% N2 as

-7

1 x 10

0.02 g/yr

mbarl/s

Table 10-5. Gas sensing specification (In Measuring Mode)

Selected unit

ppm (H

mbarl/s air (using 5% H2/

95% N

Tracer Gas)

Sensitivity

0.5 ppm 0.5 - 2000 ppm (0.2%) Typ. ± 15% of reading

-7

mbarl/s 5 x 10-7 - 4 x 10

5 x 10

Measurement range

-2

mbarl/s

Linearity Repeatability

(within 0.1 - 10 x calibration point in range 0.5 - 100 ppm)

Typ. ± 15% of reading (within 0.1 - 10 x calibration point in

range 1 x 10-5 - 2 x 10

mbarl/s)

Typ. ± (10% of reading + 0.3 ppm)

Typ. ± (10% of reading + 3 x 10

mbarl/s)

-7

g/yr R143a (using 5% H

95% N

Tracer Gas)

OM-Sensistor ISH2000-EN-201304 51

0.2 g/yr 0.2 - 8300 g/yr Typ. ± 15% of reading

(within 0.1 - 10 x calibration point in range 0.2 - 420 g/yr

Typ. ± (10% of reading + 0.1 g/yr)

Hydrogen leak detector Sensistor ISH2000 - Operating Manual

11 Spare parts and accessories

There are a variety of spare parts and accessories to the Sensistor ISH2000. In the following table some of these are presented, for a complete list of all spare parts and accessories please visit

Table 11-1. Spare parts and accessories.

Part Part no.

Hand Probe P50 590-780

Hand Probe P50-FLEX 590-790

Probe Cable C21 Length 3m Length 6m Length 9m Length 4m (Helical) Length 6m (Helical)

Probe Tip Protection Cap for Hand Probes P50 and P50-FLEX

Probe Tip Filter

www.inficon.com.

590-161 590-175 590-165 590-163 590-164

590-625 (Set of 500) 591-273 (Set of 50)

591-234 (Set of 50)

Power cable eu Power cable uk Power cable us

Fuse, 2 A slow for Sensistor ISH2000 591-578

Carrying case for Sensistor ISH2000C 591-329

Battery charger for Sensistor ISH2000C 591-795

Hand Probe sensor 590-292

Mounting kit Sensistor ISH2000P 590-810

Phoenix connector to Sensistor ISH2000P 591-792

O-ring seal 591-528

Calibration Leaks. Standard or customer specific leaks for detector calibration

591-146 591-147 591-853

see separate Data Sheet

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12 Support by INFICON

12.1 How To Contact INFICON

For Sales and Customer Service contact nearest INFICON Service Center. The address is found on the website: www.inficon.com

If you are experiencing a problem with your instrument, please have the following information readily available:

• The serial number and firmware version for your instrument,

• A description of your problem,

• An explanation of any corrective action that you may have already attempted, and the exact wording of any error messages that you may have received.

12.2 Returning your instrument to INFICON

Please use the Product Return Form which was included with the product at delivery.

Do not return any component of your instrument to INFICON without first speaking with a Customer Support Representative. You must obtain a Return Material Authorization (RMA) number from the Customer Support Representative.

If you deliver a package to INFICON without an RMA number, your package will be held and you will be contacted. This will result in delays in servicing your instrument.

Prior to being given an RMA number, you may be required to complete a Declaration Of Contamination (DOC) form if your instrument has been exposed to process materials. DOC forms must be approved by INFICON before an RMA number is issued. INFICON may require that the instrument be sent to a designated decontamination facility, not to the factory.

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13 Menu Overview

Volume Sens Cal Menu Change Test Mode Measuring Mode

Locating Mode

Combined Mode ¹⁾

Calibration Calibrate

Calibration Value

Calibration Unit

Leak Gas

Calibration Time

Interval

Password Protected Calibration

Locating Mode Settings Sensitivity

Auto Range

Direct Sensitivity Adjustment

Audio Threshold

Reject Indication

Audio Ready Pulse

Measuring Mode Settings Reject Level

Measuring Unit

Displayed Gas

Multipoint Measuring

Multipoint Measuring Time

Min Presentation Time

Display Threshold

Audio Threshold

Reject Indications

Show Reject Level

Audio Ready Pulse

APC Settings ²⁾ Probe Type ²⁾

APC Time A ²⁾

APC Time B ²⁾

APC Time C ²⁾

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Volume Sens Cal Menu

APC Time D ²⁾

Purge Level ²⁾

Reset Signal ²⁾

Display Settings Contrast

Brightness

Invert Colors

Screen Save Timeout

General Settings Correlation Value

Language

Measure/Print Button

Probe Button

Probe Lamp

Change Password

Password Protection Level

Audio Base Frequency

Set Clock

Set Date

Data Output ¹⁾

Info

Service Settings Show Password

Instrument System Reset

Detector Signal Level

Trigg Level

Min Calibration Time

Calibration Tolerance

Battery Mode

ILS500 Mode

Number of Significant Digits

Debug Mode

Service Mode

¹⁾ Not in ILS500 Mode ²⁾ Not in Battery Mode

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14 Declaration of conformity

Declaration of Conformity

Manufacturer

INFICON AB Westmansgatan 49 SE-582 16 Linköping Sweden

Phone: +46 (0)13-355900 Fax: +46 (0)13-355901

Product

Hydrogen Leak Detector

Brand Names

ISH 2000 (Table top model) ISH 2000 C (Battery operated model) ISH 2000 P (Panel mounted model) ISH 2000 ICE (Table top model) ISH 2000 C ICE (Battery operated model)

The manufacturer declares the above products to be produced in conformity with the follow i ng directives

CE Marking Directive (93/68/EEC) EMC Electromagnetic Compatibility (2004/108/EC). LVD Electrical safety - Low Voltage (2006/95/EC)*. WEEE Waste electrical and electronic equipment (2002/96/EC). RoHS Restriction of the use of certain hazardous substances in electrical and electronic equipment (202/95/EC)

* Relevant only for battery charger (CE marked) on the Battery operated model. Manufacturers declaration provided on request.

For INFICON AB, September 01, 2011

____________________________________ Fredrik Enquist / R&D Manager

INFICON AB

Box 76, SE-581 02 Linköping, Sweden Phone: +46 (0) 13 35 59 00 Fax: +46 (0) 13 35 59 01

www.inficon.com E-mail: reach.sweden@inficon.com

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15 Recycling

Disposal of product when taken out of service

According to EU legislation, this product must be recovered for separation of materials and may not be disposed of as unsorted municipal waste.

If you wish you can return this INFICON AB product to the manufacturer for recovery.

The manufacturer has the right to refuse taking back products that are inadequately packaged and thereby presents safety and/or health risks to the staff.

The manufacturer will not reimburse you for the shipping cost.

Shipping address: INFICON AB Westmansgatan 49 582 16 LINKÖPING´ SWEDEN

OM-Sensistor ISH2000-EN-201304 57

INFICON AB, Box 76, SE-581 02 Linköping, Sweden Phone: +46 (0) 13 35 59 00 Fax: +46 (0) 13 35 59 01 www.inficon.com E-mail: reach.sweden@inficon.com

Inficon Sensistor ISH2000 Series, Sensistor ISH2000C, Sensistor ISH2000, Sensistor ISH2000P Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 User information

1.1 Notes and safety notices

1.2 Document outline

1.3 Conventions used in this book

2 Description of equipment

2.1 Sensistor ISH2000

2.2 Sensistor ISH2000C

2.3 Sensistor ISH2000P

3 Controls and connections

3.1 Display

3.2 Push-buttons

3.3 LEDs

3.4 Ports and connections

Sensistor ISH2000

Sensistor ISH2000C

Sensistor ISH2000P

4 Precautions

4.1 When working with gas

4.2 Hydrogen Tracer Gas for leak detection

4.3 Interferences

5 Working principle

5.1 Gas Sensor Technology

5.2 Condition for leak detection

5.3 Leak Detection mode

6 Operating the detector

6.1 To Detect Leaks

6.2 To Locate Leaks

6.3 To Quantify Leaks

7 Calibrate the leak detector

7.1 Introduction

7.2 Calibration Leak or Calibration Gas

7.3 Unit Conversion

7.4 Calibration procedure

7.5 Calibration value with Calibration leak

7.6 Calibration value with Calibration gas

8 Reference section

8.1 Menu system

8.2 Button functions

8.3 Stored values and setups

8.4 Engineering format

8.5 Change Test Mode

8.6 Calibration

8.7 Locating Mode Settings

8.8 Measuring Mode Settings

Displayed Gas

8.9 APC Settings*

8.10 Display Settings

8.11 General Settings

Password Protection Level

8.12 Service Settings

Calibration Tolerance

ILS500 Mode

8.13 Combined Mode

8.14 Probe

Changing the Probe

8.15 Probe Control Port

8.16 Printer port

8.17 Sensistor ISH2000P installation

8.18 Default parameters

9 Trouble-shooting

10 Sensistor ISH2000 specifications

11 Spare parts and accessories

12 Support by INFICON

12.1 How To Contact INFICON

12.2 Returning your instrument to INFICON

13 Menu Overview

14 Declaration of conformity

15 Recycling