GL Sciences LD239 Manuel utilisateur

Leak Detector LD239 Instruction Manual

Thank you for purchasing the Leak Detector LD239.

To maintain the optimum performance, read this manual before using it.

Before operating the LD239, please read this operation manual carefully to

ensure proper use. We recommend that you keep this operation manual on

hand near the product for future reference.

Introduction

Safety Notices

1. Attention

The Leak Detector LD239 indicates leaks through a dual system that

consists of an indicating LCD and an audible alarm.

LD239 is a highly sensitive instrument especially to detect helium gas and

hydrogen gas leaks, and that helps identify gas-leakage spot.

This manual indicates safety notices as follows,

Improper use contrary to the caution may lead to

deterioration in system performance or damage to the

system.

Warning

Caution

㨯Do not use the attached recharge micro USB cable

for other equipments.

㨯When removing or attaching the recharger to the

detector, make sure that the power of the detector is

OFF.

Warning

Caution

Improper use contrary to the warning may result in the

operator’ s death or serious injury.

Improper use contrary to the [caution] may result in

injury to the operator or property damage.

LD239 is not an explosion-proof equipment. Therefore,

do not use the detector in areas at risk of fire, explosion

or large flammable gas leaks.

㨯LD239 is not a safety guard against hazardous or

flammable gases.

㨯Do not open the detector’s body except replacing a

battery.

22-1 Nishishinjuku 6-Chome

Shinjuku-Ku, Tokyo 163-1130 Japan

Tel: 81-3-5323-6611

Fax: 81-3-5323-6622

1) When using LD239 for flammable gases leakage, make sure the

sufficient ventilation in the room.

2) The sensitivity of the detector comes to be extremely worse when the

surrounding contains the leaking gas.

3) Sensitivity of LD239 can be affected by wind. Please be careful for

outdoor use.

4) Do not use the detector to detect corrosive gases.

5) LD239 is not a quantitative device, rather it is designed to detect leaks in

gas line connections commonly associated with laboratory equipment.

6) Do not use the detector in environments that are contaminated with dust

or combustible fumes.

7) Do not use the detector outside of its specified temperature range

(10 - 40 °C).

8) Do not use the detector in a wet environment or come into contact with

any solvents.

9) Do not expose the detector to shock.

10) Ensure the device is in a stable condition during operation.

11) LD239 has sample gas line and reference gas line. Both lines are

attached filters but they are not effective for liquid samples. Do not

aspirate liquid samples.

12) Decrease of sensitivity can be caused by filter clogging. Please replace a

filter at sample line or reference line.

(Refer to “7. Replacement of service parts” )

13) Do not block the tip of the Sample Probe and Reference Port. Especially

please be careful not to press the Sample Probe against the object.

14) The detector gives a positive response to water vapor in the air. Such as

skin vapor or soapy water can be detected as gas leakage.

15) Please wait for several seconds before re-closing power.

16) LD239 may become warm during charging. This is normal and does not

indicate a malfunction.

17) Do not turn on the power of the detector while its battery is being

recharged.

18) Do not use the detector for 30 minutes to stabilize it's temperature after

recharging.

19) Attach a charging terminal cap except charging.

20) Please use LED in addition to LCD display only when needed to save the

drain on battery power.

2. Operational Notices

3. Battery

●LD239 has a rechargeable lithium-ion battery. Before using the product for

the first time, or before using the product following an extended period of

disuse, recharge the battery with an attached micro USB cable connecting

to PC. (Charging micro USB cable : Cat.No.2702-19331)

If PC is not available, use a commercial AC-USB exchange adaptor.

●When the LCD is not shown or "Low Battery Error" is indicated, the

batteries are low and must be recharged with the attached recharger.

When starting recharge, one LED on left down is indicated. After fully

charging, the LED is disappear It takes approximately 2.5 hours to fully

recharge the battery; when fully charged, they will provide approximately

5 hours of continuous service. (Std. Range, LED OFF, Buzzer OFF)

●When the battery is fully charged, disconnect the micro USB charging

cable. In case the micro USB charging cable is connected for a long time,

and the detection may get unstable because of heat-generating of the

battery. Do not connect the USB cable except for charging not to reduce

the battery life.

●A marked drop in the time a fully-charged battery retains its charge

indicates that the battery needs to be replaced. Purchase a new battery.

The battery lifetime depends on usage and battery degradation. If it

appears to be unusually short, it is need to be replaced.

(Refer to “7. Replacement of service parts” )

(1) FUNC/POWER key

ųTurning power ON/OFF and selecting

setting contents.

(2) ZERO/ENTER key

ųAdjusting zero balance and entering

setting contents.

(3) LCD display

ųShowing Standard Display and Setting

Display.

(4) LED indicators

ųIndicating leak level and battery level.

(5) Reference Port (with internal filter)

ųInlet to aspirate ambient air.

(6) Charging Terminal

ųConnecting the Charging Terminal to

PC with supplied micro USB charging

cable to charge.

(7) Battery Cover

(8) Strap Eyelet

Attaching a supplied commercial strap.

(9) Sample Probe (with internal filter)

ųAspirating sample gas.

4.Part names and functions

(9)

(4) (5) (6)

(1)

(2)

(3)

(7)

(8)

1) Press FUNC/POWER key for about 1 second and then the power is turned

on. Then, the LCD shows warming-up display. Warming-up takes

25seconds at standard range (Std), 90seconds at high range (Hi). Press

the ZERO/ENTER key to skip it.

5. Operating Procedure

2) After the warm-up or skipping the warm-up, standard display is shown.

(1) Range

R_Std: Standard Sensitivity Range

R_Hi : High Sensitivity Range (10 times more sensitive than Range Std.)

(2) Battery indicator

Battery Indicator shows the battery charge level in 3 levels.

Battery level 3:

Full charge(more than 50% is left)

Battery level 2:

Low charge Battery charge still remains to use.

(Battery charge: about 20 - 30%)

Battery level 1:

Very low Battery charging is required.

(Battery survival time is about 10 min.)

(3) Leak indicator (LCD display)

When leak gas is detected, bar graphs are displayed. The number of

bar graphs indicates level of gas leak. (Max. 8 high intensity of bar

graphs)

ZERO point display:

Leak display:

(4) Leak indicator (LED indicator)

When leak gas is detected, LED lights from the bottom left to the top

and then from the bottom right to the top. (Max. 8 lamps)

LED can be used in addition to LCD display. Combination of LCD and

LED can be set on setting display.

(Refer to “6. Setting Parameters” )

ZERO point display:

Leak display:

Standard display

(Range Std.) (Similarly displayed at Range Hi.)

㪩㪶㪪㫋㪻

(1) (2)(3)

(4)

■

Indicates the gas leak, which has higher thermal

conductivity than air.)

□ (Indicates the gas leak which has lower thermal

conductivity than air.)

Blinking 1

bar from the left end.

The green or the red blinks when the detector

becomes stable at near Zero point.

red light (Indicates the gas leak, which has higher

thermal conductivity than air.)

green light (Indicates the gas leak, which has lower thermal

conductivity than air.)

㪩㪶㪪㫋㪻

㩷㪮㪸㫉㫄㩷㫌㫇

㩷㩷㩷㪉㪌㩷

㪪㫂㫀㫇㪑㪜㪥㪫

25 - second countdown

Press ZERO/ENTER key to skip.

Warming-up display

(Range Std.)

3) First, check the stability at zero point.

■ & □ on the left will be blinking alternately when the detector becomes

stable. When the leak indicator is displayed without leakage, press ZERO /

ENTER key to adjust the zero balance. Under conditions such as

fluctuation of temperature or humidity, the detector needs zero point

adjustment. LED display as well as LCD display.

4) Place the sample probe tip near the gas connection to leak check.

One Gas Leak Mark indicates there may or may not be gas leaks

especially on a High range. Two or more Gas Leak Marks indicate there is

a gas leak.More than 3 Gas Leak Marks are indicated, and the audible

alarm sounds whenthe buzzer functionON is selected.

(Refer to “6. Setting Parameters” )

5) Turn off the detector after use.

LD239 can be turned off in either automatic or manual mode Refer to [6.

Setting Parameters.

● Set Auto Power Off function to ‘ON’

This function turns the detector off automatically 10min. after use. It will

be helpful to prevent leaving the detector turning off.

● Set Auto Power Off function to ‘OFF’

Hold down the FUNC/POWER key for 3 seconds to turn the power OFF.

6. Setting Parameters

1) Parameter Setting items and contents

㪩㪶㪪㫋㪻㪩㪶㪪㫋㪻㪩㪶㪪㫋㪻

or ZERO

ENTER

Out of zero point ZERO adjust

Content

Range

Buzzer

LED

Backlight

A.P.Off

Sets the buzzer to alarm

ON : Use(More than 3 Gas Leak Marks.)

OFF: Not Use

Sets LED in combination with LCD display

ON: Use, OFF: Not Use

Sets LCD backlight

ON: Use, OFF: Not Use

Sets Auto Power Off

ON: Use, OFF: Not Use

Parameter Setting item

Sets Range

Std: Standard Sensitivity Range

Hi : High Sensitivity Range

2) Flow diagram of parameter settings

㪩㪶㪪㫋㪻㪩㪶㪟㫀

Standard Display(Std range) Standard Display(Hi range)

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䄿㪙㪸㪺㫂㫃㫀㪾㪿㫋

㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷

䅃㪘㪅㪧㪅㪦㪽㪽㩷㩷㩷㩷

●Setting the Range

●Setting the Buzzer

●Setting the LED

●Setting the Backlight

●Setting the Auto Power Off

ZERO

ENTER

FUNC

POWER

FUNC

POWER

FUNC

POWER

FUNC

POWER

FUNC

POWER

ZERO

ENTER

ZERO

ENTER

ZERO

ENTER

ZERO

ENTER

ZERO

ENTER

ZERO

ENTER

ZERO

ENTER

ZERO

ENTER

ZERO

ENTER

FUNC

POWER

FUNC

POWER

FUNC

POWER

FUNC

POWER

FUNC

POWER

FUNC

POWER

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䅃㪩㪸㫅㪾㪼㩷㩷㩷㩷㩷㩷

䄿㪙㫌㫑㫑㪼㫉㩷㩷㩷㩷

䄿㪣㪜㪛㩷㩷㩷㩷㩷㩷㩷㩷

㪪㫋㪻

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䅃㪩㪸㫅㪾㪼㩷

䄿㪙㫌㫑㫑㪼㫉

䄿㪣㪜㪛㩷㩷㩷㩷

㪪㫋㪻

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䅃㪩㪸㫅㪾㪼㩷㩷

䄿㪙㫌㫑㫑㪼㫉㩷

䄿㪣㪜㪛㩷㩷㩷㩷㩷

㪟㫀

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䄿㪩㪸㫅㪾㪼㩷㩷

䅃㪙㫌㫑㫑㪼㫉㩷

䄿㪣㪜㪛㩷㩷㩷㩷㩷

㪪㫋㪻

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䄿㪩㪸㫅㪾㪼㩷㩷

䅃㪙㫌㫑㫑㪼㫉㩷

䄿㪣㪜㪛㩷㩷㩷㩷㩷

㪪㫋㪻

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䄿㪩㪸㫅㪾㪼㩷㩷

䅃㪙㫌㫑㫑㪼㫉㩷

䄿㪣㪜㪛㩷㩷㩷㩷㩷

㪦㪝㪝

㪪㫋㪻

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䄿㪩㪸㫅㪾㪼㩷㩷

䄿㪙㫌㫑㫑㪼㫉㩷

䅃㪣㪜㪛㩷㩷㩷㩷㩷

㪪㫋㪻

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䄿㪩㪸㫅㪾㪼㩷㩷

䄿㪙㫌㫑㫑㪼㫉㩷

䅃㪣㪜㪛㩷㩷㩷㩷

㪪㫋㪻

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䄿㪩㪸㫅㪾㪼㩷㩷㩷㩷㩷㩷

䄿㪙㫌㫑㫑㪼㫉㩷㩷㩷㩷

䅃㪣㪜㪛㩷㩷㩷㩷㩷㩷㩷㪦㪝㪝

㪪㫋㪻

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䅃㪙㪸㪺㫂㫃㫀㪾㪿㫋

㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷

䄿㪘㪅㪧㪅㪦㪽㪽㩷㩷㩷㩷

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䅃㪙㪸㪺㫂㫃㫀㪾㪿㫋

㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷

䄿㪘㪅㪧㪅㪦㪽㪽㩷㩷㩷㩷㪦㪥

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䅃㪙㪸㪺㫂㫃㫀㪾㪿㫋

㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷

䄿㪘㪅㪧㪅㪦㪽㪽㩷㩷㩷

㪦㪝㪝

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䄿㪙㪸㪺㫂㫃㫀㪾㪿㫋

㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷

䅃㪘㪅㪧㪅㪦㪽㪽㩷㩷㩷㩷

㪦㪥

㪧㪸㫉㪸㫄㪅㪪㪼㫋

䄿㪙㪸㪺㫂㫃㫀㪾㪿㫋

㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷㩷

䅃㪘㪅㪧㪅㪦㪽㪽㩷㩷㩷㪦㪝㪝

㪦㪥

:At blinking (Selecting) condition

●Replacement of Sample Probe Filter

a) Unscrew the probe cap counterclockwise, and disjoin the probe and

probe cap. The Sample Filter is attached to the probe cap.

b) Remove the old Sample Filter from the probe cap.

When the Sample filter is stuck to the probe cap, use long-nose pliers.

c) Insert the PTFE tubing into a new Sample Filter to attach the Sample

Filter tightly to Protective tubing.

Sample Filter : Cat.No.2702-19333

d) Finally, attach the probe to the probe cap tightly.

7. Replacement of service parts

●Battery Replacement

1) How to remove the old battery

a) Remove a screw with a small

Phillips-head screw driver.

b) Remove the battery cover.

c) Remove the battery by pushing in the

direction an arrow.

●Replacement of Reference Port Filter

Pick the old Reference Filter out, and replace a new Reference Filter.

Reference Filter : Cat.No.2702-19334

2) How to install a new battery

a) Install a new battery pushing.

b) Fasten the battery cover properly.

c) Attach the cover with a small

Phillips-head screw driver.

LD239 Battery : Cat.No.2702-19341

a) b)

Holding pins

Terminals

Probe Probe cap

Sample Filter

PTFE tubing

Protective tubing

Sample Filter

Reference Filter

8. Specifications

Notice: The sensitivity should be dependent on the difference between the thermal

conductivities of gas and air (24.1(mW / m㨯M at 0 °C, 1atm); a large difference

results in a high sensitivity. Also, the kinds of gas and humidity should influence

the sensitivity.

Thermal conductivity of some common gases [(mW / m㨯k) at 0°C, 1atm]

● The lithium-ion battery inside the LD239 does not apply battery regulations in Russia or

Australia. Do not bring the LD239 these countries.

Leak Detector LD239 Instruction Manual (Cat.No.2702-19336)

Rev.1-1

Detector:

Charging micro USB cable(1m), Instruction Manual,

LD239 Battery(built-in), Sample Filter(built-in), Reference Filter(built-in)

Power supply:

Display:

Thermal conductivity of gases:

Sensitivity:

Overall size:

Accessories:

Operating temperature range:

Net weight:

Parameter setting:

Thermistor-actuated thermal conductivity cell

He, CO2, Ar, Ne, etc. (not available under flammable or corrosive atmosphere)

Selectable from 2 ranges: Standard(Std.) Range and High(Hi.) Range

[Std Range] Helium 0.005mL/min in atmosphere

[Hi Range] Helium 0.0005mL/min in atmosphere

[Leakage display] LCD display(Max. 8 bar graphs), LED(Max. 8 lamps)

[Parameter setting display] LCD display

Range(Std./Hi.), Buzzer(ON/OFF), LED(ON/OFF), LCD backlight(ON/OFF),

Auto Power Off(ON/OFF)

Rechargeable battery-powered equipment(built-in dedicated lithium-ion battery)

[Charging time] Max. 2.5 hours

[Continuous operation] Approximately 5 hours (with new, fully charged batteries)

(Std. Range, Buzzer OFF, LED OFF, LCD Backlight OFF)

10 - 40 °C(non condensing)

50(W) × 19.5(D) × 111(H) mm (excluding projection)

Approximately 95g

Hydrogen *

Helium *

Neon *

Methane *

168.2

142.2

46.5

30.2

Air

Nitrogen

Ethane

Ethylene

24.1

24.0

18.0

16.4

Argon

Carbon dioxide

Krypton

Xenon

16.3

14.5

8.7

5.2

Gas thermal

conductivity Gas Gas

thermal

conductivity thermal

conductivity

● Action for Environment (WEEE)

To users of GL Sciences equipment in the European Union:

The WEEE (Waste Electrical and Electronic Equipment) symbol on the product

indicates that it should be disposed of as agreed between the end user and the

distributor in a manner consistent with required WEEE Directives. It should not

be disposed of with general household waste.

: Gases which have higher thermal conductivity than air.

*: Undetectable gases

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