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DLab Digital Manual

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(Hotplate) Magnetic Stirrer
user manual
12301895
Ver.20231228

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Summary of Contents for DLab Digital

  • Page 1 (Hotplate) Magnetic Stirrer user manual 12301895 Ver.20231228...

  • Page 2: Table Of Contents

    4. Control ......................8 4.1. Control elements ..................8 4.2. Display ...................... 10 5. Trial run......................12 6. Function: Heating (LCD digital hotplate model) ..........13 6.1. Working with external temperature sensor ..........14 6.2. Residual heat warning（HOT） ..............14...
  • Page 3 7. Stirring (LCD digital model) ................15 8. Remote Control (LCD digital model) ............... 15 9. Faults ......................17 10. Maintenance and Cleaning ................19 11. Associated standards and regulations ............20 12. Specifications....................22...

  • Page 4: Preface

    Preface Welcome to the “(Hotplate) Magnetic Stirrer User Manual”. Users should read this Manual carefully, follow the instructions and procedures, and be aware of all the cautions when using this instrument. Service When help needed, you can always contact the Service Department of manufacturer for technical support in the following ways: Please provide the customer care representative with the following information：...
  • Page 5 The warranty is extended only to the original purchaser. It shall not apply to any product or parts which have been damaged on account of improper installation, improper connections, misuse, accident or abnormal conditions of operation. For claims under the warranty please contact your local supplier. You may also send the instrument directly to manufacturer, enclosing the invoice copy and by giving reasons for the claim.

  • Page 6: Safety Instructions

    1. Safety Instructions Warning!  Read the operating instructions carefully before use.  Ensure that only trained staff works with the instrument. Risk of burn!  Caution when touch the housing parts and the hotplate which can reach temperature of 340 ℃. ...
  • Page 7 The instrument is not running smoothly, or container moves on the base plate  Temperature must always be set to at least 50℃ lower than the fire point of the media used.  Be aware of hazards due to: Flammable materials or media with a low boiling temperature Overfilling of media Unsafe container ...
  • Page 8 device and can not come off by themselves. Always disconnect the plug before fitting accessories.  When the external temperature sensor needed, the tip of the measuring sensor must be at least 5-10 mm from vessel bottom and wall.  The instrument can only be disconnected from the main power supply by pulling out the main or the connector plug.

  • Page 9: Proper Use

    2. Proper use The instrument is designed for mixing and/or heating liquids in schools, laboratories or factories.  Observe the minimum distances between the devices, between the device and the wall and above the assembly (min. 100 mm) Figure 1 This device is not suitable for using in residential areas or other constraints mentioned in Chapter 1.

  • Page 10: Inspection

    3. Inspection 3.1. Receiving Inspection Unpack the equipment carefully and check for any damages which may have arisen during transport. Please contact manufacturer/supplier for technical support. Note: If there is any apparent damage to the system, please do not plug it into the power line. 3.2.

  • Page 11: Control

    4. Control 4.1. Control elements Figure 2 LCD Digital model Figure 3 Classic model...
  • Page 12 Heating knob Set the rated temperature. The function Heat(Hotplate “heating” is switched ON or OFF via push model) ON/OFF the knob. LCD Digital LCD displays the real working state and all model LCD Display settings. LED Heat (Hotplate When the heating function is switched ON, model) the LED Heat is lit.

  • Page 13: Display

    When the heating function is switched ON, model) the LED Heat is lit. When the device is switched ON, the LED LED Power power is lit. Power switch Switch ON or OFF. Table 2 4.2. Display(LCD digital model) Figure 5...
  • Page 14 Characters Descriptions Display temperature when the heating function is Temp °C switched ON. Display stirring state when the stirring function is Stir switched ON. Display hot warning if the heating plate temperature is above 50 °C after switching OFF the heating function. Probe Display when using external probe.

  • Page 15: Trial Run

     Place vessel on the work plate.  Set the target stirring speed and begin.  Observe the stirring bar and LCD display (digital model).  Set the target temperature and start heating.  Observe the real temperature on LCD display (digital model).

  • Page 16: Function: Heating (Lcd Digital Hotplate Model)

    6. Function: Heating (LCD digital hotplate model) The device is controlled by digital temperature control technology, which has two separate safe circuits. The hotplate is kept at a constant temperature by a digital control circuit. The hotplate temperature can also be monitored from a separate, adjustable safe circuit.

  • Page 17: Working With External Temperature Sensor

    Figure 6 The external temperature sensor PT1000 is the manufacture’s standard accessory. If the sensor is plugged in, “Probe” will be shown on the digital display to indicate the sensor is operating. The setting value of external temperature sensors and actual temperature are displayed.

  • Page 18: Stirring (Lcd Digital Model)

    (100 to 1500 rpm in steps of 10 rpm). When both of function heating and stirring are switched on and those above operations are done, the LCD will shift to the speed value and come back to the temperature value in about 5 seconds. 8. Remote Control (LCD digital model) Figure 7...
  • Page 19 The unit can be controlled from an external PC (using the dedicated software) via the RS232C serial interface fitted to the unit. Data communication from laboratory instrument to computer is only possible on demand of the computer.  The functions of the interface lines between laboratory instrument and automation system are selected from the specified signals of the EIA-standard RS232C, corresponding with DIN66020 Part 1.

  • Page 20: Faults

    9. Faults  Instruments can’t be power ON Check whether the power line is unplugged Check whether the fuse is broken or loose  Fault in power ON self test Switch OFF the unit, then switch ON and reset the instruments to factory default setting.
  • Page 21 Describe& conditions code conditions The temperature sensor is 1. he setting temperature shall be incorrectly placed or not put more than the initial temperature into the container during displayed on the screen +10℃ heating. 2. The initial temperature displayed The temperature rises less on the screen shall be less than 35℃.

  • Page 22: Maintenance And Cleaning

    10. Maintenance and Cleaning  Proper maintenance can keep instruments working properly and lengthen its lifetime.  Do not spray cleanser into the instrument when cleaning.  Unplug the power line when cleaning.  Only use recommended cleansers: Dyes Isopropyl alcohol Construction materials Water containing tenside /Isopropyl alcohol Cosmetics...

  • Page 23: Associated Standards And Regulations

    NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 24 installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

  • Page 25: Specifications

    12. Specifications Specifications Items Digital model Classic model Voltage [VAC] 100~120/200~240 100-120/200-240 Frequency [Hz] 50/60 50/60 *550 *530 Power [W] Stirring point position quantity Max. stirring quantity (H2O) [l] Max. magnetic bar [L×Ø,mm] 80×10 80×10 Motor type DC brushless motor Max.
  • Page 26 RT-340, *Temperature range [°C] RT-340 increment:1 *Temperature display [°C] Scale *Temperature display accuracy [°C] ±0.1 *The safe temperature of hotplate [℃] *Temperature sensor in medium PT1000 *Control accuracy of heating temperature with temperature ±0.2 sensor [℃] *Residual heat warning 50℃ Dimensions (mm) 280×160×85 Weight [kg]...
  • Page 27 CONTACT US DLAB Scientific Co., Ltd Yu An Road 31, Beijing Airport Economic core zone, Shun yi District, Beijing, China 101318 Tel: 86-10- 85653451/52/53 Fax: 86-10-85653383 E- mail: info@dlabsci.com web: www.dlabsci.com...

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