Sentry ST314A Bedienungsanleitung

ST314A

Hydrogen

Leak Detector

Instruction Manual

Ver. 01_20230213

1. Introduction -----------------------------1

1-1. Features -------------------------------1

1-2. Applications ---------------------------1

2. Safety Information ----------------------1

2-1. Safety symbols ------------------------1

2-2. Warning -------------------------------2

3. Product Specifications ------------------3

4. General Descriptions --------------------4

4-1. Parts and Control Panel ----------------4

4-2. Lithium Battery Storage and Care -------5

4-3. Charging the Lithium Battery -----------6

5. Operating Instructions -------------------8

5-1. Main Function --------------------------8

5-1-1 Button Function ----------------------8

5-1-2 Low Battery Indicator ----------------11

5-1-3 Sensor Failure Indicator -------------12

5-2. Start with Auto/ Manual Reset Mode -12

5-2-1 Manual Reset Mode Inspection ------12

5-2-2 Auto Reset Mode Inspection ---------12

6. Maintenance -----------------------------14

6-1. Leak Test Bottle -----------------------14

6-2. Probe Tip -----------------------------14

6-3. Clean ----------------------------------15

6-4. Replacement Parts --------------------15

Introduction

Thank you for purchasing the Hydrogen leak detector.

Read through this instruction manual before operating

the unit.

Please also store and retain this instruction manual for

future reference.

1-1. Features

˙High Quality LCD display .

˙Exclusive LED Tip light design

˙Mute Function.

˙Power-saving Mode.

˙Low battery indicator.

˙Rugged flexible probe.

˙3 adjustable sensitivity levels.

˙Detects 5% Hydrogen (H2) + 95% Nitrogen (N2), H2,

CO, Methane(CH4), Ethanol(Natural gas).

˙Sensor failure indicator.

˙Buzzer beep sound respond.

˙USB power adapter.

˙DC 3.7v rechargeable lithium battery.

˙Automatic & Manual Reset to background Function.

1-2. Applications

˙Inspection for HVAC device & components.

˙Inspection for Food Packaging & Fuel Hydrogen Battery

Cells.

˙Sniffing leak detection for sealed device

˙Underground cable pipeline inspection.

˙Inspection and repair for defective sealed products.

˙Laboratory accuracy.

˙Semiconductor production inspection.

2. Safety Information

Read the following safety information carefully before

attempting to operate or service the meter.

Only qualified engineer should perform repairs.

2-1. Safety symbols

This instrument conforms to the following standards:

EN61326-1:2021 : Electrical equipment for

measurement ,control and laboratory uses equipment

EMC test.

IEC61000-4-2 : ESD immunity test.

IEC61000-4-3 : Radiated, radio-

frequency ,Electromagnetic field immunity test.

IEC61000-4-8 : Power frequency magnetic field

immunity test.

Restrict to use of 10 substances within electrical and

electronic equipment (EEE), thereby contributing to the

protection of human health and the environment.

REACH (SVHC)

The device of used materials contents no following

substances that list of proposed REACH substances of

very high concern.

The device may not be disposed of with the trash.

It promotes the re-use recycling and other forms

of recovery of used materials and components,

and to improve the environmental performance of all

operators (manufacturers, traders, and treatment

facilities) involved in the life cycle of products. Dispose

of the product appropriately in accordance with the

regulations in force in your country.

2-2. Warning

Please read the manual carefully to ensure safe and

correct use of this meter before using.

Please re-read if necessary.

Be sure to adhere to the following points to avoid injury.

˙Please be aware of this meter is not water-proof

product.

˙Do not attempt to replace the sensor and LED.

˙Do not attempt to repair it yourself if the meter is

malfunction.

Only qualified engineer may do it.

˙Do not force to bend the flexible probe over its limit of

angle.

˙Do not subject the probe tip to impact that could

break the inside sensor.

˙Do not use the meter in places where flammable or

nearby the fire.

˙Do not use this meter in environments outside this

range: 32°F (0°C) to 122°F (50°C)

˙Never use organic solvents to clean the meter. (Such

as thinner, benzene, etc.)

Product Specifications

Model ST314A

Sensor Semiconductor

Detection Gases

5% Hydrogen (H2) + 95% Nitrogen (N2), H2, CO,

Methane(CH4), Ethanol(Natural gas)

Sensitivity levels

High

：

1PPM

Medium：3PPM

Low：10PPM

Calibration

Manually reset to background level

Automatic reset to background level

Response time Less than 0.5 second

Warm up time Approx. 50 seconds

Battery type

3.7V DC, 1960mAh

rechargeable lithium battery

Battery life

Max. up to10 hours continuous use after fully

charged.

Sensor failure

notification

Yes

Audio alarm Yes(Buzzer)

Fan system Yes

Auto power off 10 minutes of idle.

Low battery

indicator

Yes (Battery Icon)

Tip light Yes

Flexible probe

length

18” (450mm)

Operating temp.

and %RH

32°F ~ 122°F(0°C ~ 50°C), ＜80%RH

Storage temp.

and %RH

14°F ~ 140°F(-10°C ~ 60°C), ＜70%RH

Dimensions 7.2”x 2.8”x 1.6” (184 x 70 x 40 mm)

Weight 12 oz.(340g)

Accessories

Included : Quick user's guide, USB cable, Leak

test bottle

Option to buy : Charger, Rubber protector, Hard

carrying case.

General Descriptions

4-1. Parts and Control Panel

1. Power Button

2. Sensitivity Level Indicator

3. Leak Level Indicator

4. Sensor failure Indicator

5. Low Battery Indicator

6. Charging Indication

7. Reset Button

8. Tip Light LED ON/OFF Button

9. Back Light ON/OFF Button

10. Reset/Back Light Indicator

11. Reset Indicator

12. Mute Indicator

13. Buzzer Output

14. Mute Button

15. Sensitivity Button

(High、Medium、Low)

16. Flexible Probe

17. Tip Light (Read Section 6-2)

4-2 Lithium Battery Storage and Care

Operating Temperature and Humidity:

Discharge : 32°F ~ 122°F (0°C ~ 50°C) , less than 80% RH

Charging : 32°F ~ 113°F (0°C ~ 45°C) , less than 80% RH

Storage Humidity : Less than 70% RH

Storage temperature and capacity recovery:

Temperature range / Duration / Capacity recovery

-4°F ~ 140°F (-20°C ~ +60°C) /1month / 75%

-4°F ~ 113°F (-20°C ~ +45°C) / 3months / 70%

-4°F ~ 77°F (-20°C ~ +25°C) /1year / 80%

In case of contacting the materials from the battery:

Skin Contact: Washing immediately with water and soap.

Eye Contact : Washing immediately with plenty of water

for at least 15 minutes.

Get medical attention.

Ingestion : Get medical attention immediately.

Warning:

˙When the battery has rust, bad smell or something

abnormal at first time-using, do not use and contact

your dealer.

˙The battery is requested to be stored within a proper

temperature range specified in this specification.

˙Do not disassemble or reconstruct battery.

˙Do not give battery impact or fling it.

˙Do not immerse the battery in water or sea water or

get it wet.

˙Do use the specified charger and observe charging

requirement.

˙Do not continue to charge battery over specified time.

˙Do not charge the battery near a fire or in a hot

vehicle or direct sunlight.

˙Do not use the battery with conspicuous damage or

deformation.

˙Charging temperature range is regulated between

32°F ~ 113°F(0°C ~ 45°C).

Do not charge the battery out of recommended

temperature range.

Charging out of recommended range might cause

the generating heat or serious damage of battery.

And it might cause the deterioration of battery's

characteristics and cycle life.

˙Do not use or leave batter nearby fire, stove, or

heated place.

The battery may generate heat, smoke, or flame.

And it might cause the deterioration of battery’s

characteristics or cycle life.

˙Avoid discharging the battery completely, it can

damage the performance of the battery.

4-3 Charging the Lithium Battery

The detector will automatically turn off if the battery

capacity is too low, charging it when the LOW-BATT LED is

lit.

It is highly recommended not to use the detector during

charging, the battery may be heated and dangerous.

The CHARGING LED be lit red color during charging, it will

turn to green when charging is completed.

Note: Always charge within the charging environment

specifications of 32°F~113°F (0°C~45°C), less than 80%

RH.

The lithium battery is charged with AC power via AC

adapter and USB cable:

(AC adapter/charger is not include)

1. Use the AC adapter and plug mini B male into the mini

B receptacle of the unit (Fig. 1).

2. Plug the AC adapter to the wall jack (Fig. 2).

3. Use the USB cable plug mini B receptacle of the unit

and plug A male into PC or Notebook USB port (Fig. 3).

(Fig.1)

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