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Labtron LDMH-A10 Manual

Handheld dust meter
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Handheld Dust Meter
LDMH-A10
www.labtron.com | info@labtron.com

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Summary of Contents for Labtron LDMH-A10

  • Page 1 Handheld Dust Meter LDMH-A10 www.labtron.com | info@labtron.com...

  • Page 2: Table Of Contents

    Handheld Dust Meter LDMH-A10 Index Sr.no Title Page no Safety Measures Introduction Features Specifications Applications Instrument Introduction Software Operations Maintenance Troubleshooting Accessories...

  • Page 3: Safety Measures

    Handheld Dust Meter LDMH-A10 1. Safety Measures • For the charger, it is a must to use the original charger; in the case of using the charger, which is provided by other manufacturers, the specifications should be 4.2V, 2Aor 5V, 2A, should be neither greater than 5V, 2A, nor less than 4.2V, 1A.

  • Page 4: Introduction

    Handheld Dust Meter LDMH-A10 2. Introduction Handheld Dust Meter LDMH-A10 is a pump-type portable dust detection meter. It utilizes a laser method for the detection of dust within a range of 0 to 300mg/m³. It features a 2.5-inch HD color touch screen for real-time display of dust concentration.

  • Page 5: Specifications

    Handheld Dust Meter LDMH-A10 4. Specifications Model No. LDMH-A10 Gases Detected Dust Detection Range 0 to 300 mg/m³ Maximum Detection Limit 1000 mg/m³ at the most Resolution 0.1 mg/m³ Flow Rate 2.83L/min Detection Principle Laser method Sensor Service Life 5 to 10 years Tolerance 2% F.S...

  • Page 6: Instrument Introduction

    Handheld Dust Meter LDMH-A10 6. Instrument Introduction 6.1 Instrument Appearance Figure-1 6.2 Introduction of operation keys 1) Power key: Power key, return key. Long press for 5 seconds to start the equipment, and after startup, long press for 5 seconds to shut down the equipment.

  • Page 7: Software Operations

    Handheld Dust Meter LDMH-A10 7. Software Operations 7.1 Startup instructions Address numbers and software versions of this equipment will be displayed during the startup, as shown in Figure 2 and Figure 3. Figure-2 Figure-3 Display the countdown time which is needed for startup self-check and sensor preheating, as shown in Figure 4.
  • Page 8 Handheld Dust Meter LDMH-A10 Figure-5 Figure-6 Figure-7 Figure-8 Figure-9...
  • Page 9 Handheld Dust Meter LDMH-A10 Figure-10 7.2 Menu operation instructions 7.2.1 Zero-point calibration operation Only when the zero drift of the sensor is too large, or it is required to accurately detect very low concentrations, the zero-point calibration will be carried out. In the test interface, press the menu key or "MENU"...
  • Page 10 Handheld Dust Meter LDMH-A10 Figure-13 For example, if the calibration of CO2 in the air is successful, it will be displayed at about 400ppm on the screen, as shown in Figure 14. Figure-14 If the calibration is not successful, it will display: The statement "Calibration failed";...
  • Page 11 Handheld Dust Meter LDMH-A10 Figure-16 Then, press the "■" key to enter the concentration calibration interface, as shown in Figure 17. Figure-17 By default, the cursor will appear at the position of Level I concentration, press the "■" key and then use the"◄" key and " ►" key to modify the concentration values of respective levels, after finishing the modification, press "■"...
  • Page 12 Handheld Dust Meter LDMH-A10 Figure-20 Figure-21 Note: Normally, calibration of Level I concentration will be enough to meet the accuracy requirements. After the concentration value is calibrated or the concentration value of the standard gas is preset, and then the gas to be detected is introduced at more than 500 ml/min for 30 seconds, the calibration will be performed.
  • Page 13 Handheld Dust Meter LDMH-A10 Figure-23 Use the"◄" key and "►" key to select the channel to be restored, then press the "■" key to enter. It is possible to select "Restore the concentration", "Restore the alarm", "Fully restore" and then press the "■" key to restore; if restoring is successful, it will display the statement "Success";...
  • Page 14 Handheld Dust Meter LDMH-A10 7.2.4 Data recording operation In the test interface, press the "MENU" key one time to enter the menu, use the"◄" key and "►" key to select the menu of "data recording", and press the "■" key to enter the interface of data recording, press the "■"...
  • Page 15 Handheld Dust Meter LDMH-A10 Select the type of query and press the "■" key to select "All Data" or "Alarm Data", as shown in Figure 31. Figure-31 Select "Start query", and press the "■" key for query, as shown in Figure 32.
  • Page 16 Handheld Dust Meter LDMH-A10 Figure-35 Figure-36 Figure-37 Figure-38 Figure-39...
  • Page 17 Handheld Dust Meter LDMH-A10 7.2.5 Alarm setting operation In the test interface, press the "MENU" key one time to enter the menu, and use the"◄" key and "►" key to select the menu of "Alarm setting", as shown in Figure Figure-40 Press the "■"...
  • Page 18 Handheld Dust Meter LDMH-A10 Figure-44 Alarm parameter setting, as shown in Figure 45. Figure-45 Alarm method: It is possible to select sound and light, vibration, sound & light + vibration, no alarm; press the "■" key to select, as shown in Figure 46.
  • Page 19 Handheld Dust Meter LDMH-A10 Alarm hysteresis: That is the alarm return difference, it is possible to set the alarm return difference for each channel; if it is set as 0, as long as the value reaches the set value of the alarm, the alarm will be activated immediately; if it is...
  • Page 20 Handheld Dust Meter LDMH-A10 Figure-51 Setting of range: It will display the maximum detection range of each gas and has been set up before leaving the manufacturer; When some sensors are measuring under overload conditions, the sensor may be damaged, as shown in Figure 52 and Figure 53.
  • Page 21 Handheld Dust Meter LDMH-A10 Figure-55 The setting of background: Based on personal preference, it is possible to modify the font color, background color, backlight sleep time, and it is also possible to select "Restore Default" to restore the default settings, use the "◄" key and "►" key to select and modify, then, press "■"...
  • Page 22 Handheld Dust Meter LDMH-A10 Figure-59 Storage method: It is possible to set two modes which are the timing storage, and alarm trigger; "timing storage" is to store the data for one time during each period of the storage cycle, as shown in Figure 60.
  • Page 23 Handheld Dust Meter LDMH-A10 Storage function: Select Turn on or turn off the data storage function, as shown in Figure 63. Figure-63 Setting of communication: When there is no connection with the computer or data transmission, there will be no need for setting, as shown in Figure 64.
  • Page 24 Handheld Dust Meter LDMH-A10 Figure-66 The default measuring time is 0 seconds; if this value is not modified, this function will not work; when it is modified to a certain value, this function will start working; if it is required to use the timing measurement function, in general cases, it is necessary to modify the value to be 30-60 seconds, press the pump switch of "PUMP"...
  • Page 25 Handheld Dust Meter LDMH-A10 Figure-69 Automatic conversion between various units is possible to switch between the following units: ppm, Vol%, LEL%, ppb, pphm, mg/m3, mg/l, g/m3, as shown in Figure 70 and Figure 71. Figure-70 Figure-71 7.2.8 Other settings operation In the test interface, press the "MENU"...
  • Page 26 Handheld Dust Meter LDMH-A10 Figure-73 Language: English is the default language, as shown in Figure 74. Figure-74 Name of the gas: The molecular formula will be displayed by default, as shown in Figure 75. Figure-75 Display the maximum value: Select Open, then the maximum value of the measurement of this time and the maximum value of the last measurement in the single-channel interface will be displayed.
  • Page 27 Handheld Dust Meter LDMH-A10 7.2.9 Explanation of Local Host Information In the test interface, press the "MENU" key one time to enter the menu, use the "◄" key and "►" key to select the menu of the second page of "Local information", and press the "■"...
  • Page 28 Handheld Dust Meter LDMH-A10 Figure-81 Repair records: Record the repair information of this equipment, as shown in Figure 82 and Figure 83. Figure-82 Figure-83 Guidance about the failures: It will introduce the simple troubleshooting methods for the failures; at present, it could not be viewed temporarily, as shown in Figure 84.

  • Page 29: Maintenance

    Handheld Dust Meter LDMH-A10 8. Maintenance During the normal use of the detector, the valid service life of most sensors is 24-36 months. Within the valid service life, one-time periodic sensor calibration should be performed every 6 months or 1 year, to ensure the accuracy and effectiveness of the gas detection function.

  • Page 30: Troubleshooting

    Handheld Dust Meter LDMH-A10 9. Troubleshooting Failure 1: It is not possible to detect when the concentration is low Countermeasure solutions: 1) Check whether the pump is working or not; when the pump is working properly, there is slight vibration, and if the finger is used to block the gas inlet for 2 seconds, it is possible to feel the obvious suction force.
  • Page 31 Handheld Dust Meter LDMH-A10 fluctuation of the numerical values of the instrument is very great, or the numerical values which are measured are relatively small; for these 2 cases, it is possible to be solved through the operation of Restoring the factory setting.

  • Page 32: Accessories

    Handheld Dust Meter LDMH-A10 Accessories Standard Accessories S. No Accessory Name USB Charger (Including Data Cable) High-grade aluminum Instrument Case Belt Clip Humidity Dust Filter Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom Email: info@labtron.com | Website: www.labtron.com...

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