Sentry ST313A Manuel utilisateur
ST313A
Combustible
Gas Detector
Instruction Manual
Ver.01_202211121
1. Introduction-------------------------------------------1
1-1. Features ----------------------------------------------1
1-2. Applications-----------------------------------------1
2. Safety Information--------------------------------1
2-1. Safety symbols-------------------------------------2
2-2. Warning---------------------------------------------3
3. Product Specifications--------------------------4
4. General Descriptions----------------------------5
4-1. Parts and Control Panel-------------------------5
4-2. Main Function-------------------------------------6
4-2-1 Button Function-----------------------------------6
4-2-2 Low Battery Indicator--------------------------10
4-2-3 Sensor Failure Indicator -----------------------10
4-3. Inspection Before use--------------------------10
5. Maintenance---------------------------------------11
5-1. Leak Test Bottle---------------------------------11
5-2. Replacement Parts -----------------------------11
5-3. Lithium Battery Storage and Care ----------12
5-4. Charging the Lithium Battery----------------14
5-5. Clean ----------------------------------------------16
5-6. Trouble Shooting------------------------------16
1
1.Introduction
Thank you for purchasing the combustible gas
detector.
Read through this instruction manual before operating
the unit.
Please also store and retain this instruction manual for
future reference.
1-1.Features
●LED Tip light
●Mute function
●Reset Indicator
●LED charging Indication
●Low battery indicator
●Rugged flexible probe
●Sensor failure indicator
●USB power adaptor
●3 adjustable sensitivity levels
●DC 3.7v rechargeable lithium battery
●Extremely sensitive semiconductor sensor
●Multiple colors LCD display for leak level indictor
●Detects methane, propane, butane, and other
hydrocarbons gas detections.
●Automatic adjustment and reset to background
●Microcontroller circuitry that guarantees accuracy
and reliability
1-2. Applications
●Industrial flammable gas detections
●Laboratory accurate
●Systems engineering
●Semiconductor production
●Automotive service
●Aircraft construction industry
2
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
◇Certification
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.
◇WEEE
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.
3
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.)
4
3. Product Specifications
Model ST313A
Sensor Semiconductor
Detection Gases
Methane, Propane, Butane, and other
hydrocarbons gases
Sensitivity levels
High : 10PPM
Medium : 30PPM
Low : 100PPM
Calibration Manually 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)
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.
5
4. General Descriptions
4-1. Parts and Control Panel
①
Power Button
②Sensitivity Level Indicator
③Leak Level Indicator
④Sensor failure Indicator
⑤Low Battery Indicator
⑥Charging Indication
⑦Reset Button
⑧Tip Light LED ON/OFF
Button
⑨Back Light ON/OFF
Button
⑩
Reset/Back Light Indicator
⑪Reset Indicator
⑫Mute Indicator
⑬Buzzer Output
⑭Mute Button
⑮Sensitivity Button
(High, Medium, Low)
⑯Flexible Probe
⑰Tip Light
6
4-2. Main Function
4-2-1 Button Function
【 】Power Button
●Turn ON:
Press and hold the Power button for 2 seconds to
turn the detector on.
LCD screen will be lit with the start-up buzzer beep
(or no buzzer beep under MUTE mode).
●Turn OFF:
Repeat to press and hold the Power button for 2
seconds again to turn the detector off.
●Warm-Up:
The detector will automatically start heating the
sensor after power-on.
During the warm-up, the graphical Leak Level will be
flashed.
After the warm-up, the leak level return to the lowest
point, and the buzzer beeps every 2 seconds (or no
buzzer beep under MUTE mode).
At this time the detector is ready to find leaks.
Warm up time takes approx. 50 seconds.
7
【 】Sensitivity Button
Press the Sensitivity button to change sensitivity.
High, Medium or Low sensitivity level is signed by its
respective icons , and .
※The detector will automatically default to previous
sensitivity level after the warm-up.
【 】RESET Button
Press the Rest button once and the Reset Indicator
on screen flashes 1 sec., the detector now reset to
background level manually.
8
【 】MUTE Button
●Press the Mute button to toggle the audio alarm on
and off.
The buzzer alarm is turned off: The MUTE icon
will be appeared.
The buzzer alarm is turned on: The MUTE icon
will be off.
※The detector will automatically default to previous
MUTE ON/OFF setting after re-start.
●The buzzer alarm is OFF
Under the MUTE mode, all audible beeps are off.
◆The buzzer alarm is ON
Button Tone
The buzzer gives one beep when any of button is
pressed.
◆Detection Tone
The buzzer beeps every 2 seconds when no leak
activity is found.
The buzzer becomes rapid when leak signal is
approaching.
The fast beeps are given, the high-density
combustible gas is detected.
◆Sensor Failure Indicator
The sensor failure icon blinks and gives slow
beep alarm when sensor was misplaced or failure.
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