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1. 402 991 1999 info ldbenterprises com Power supply 220V Relative Humidity 0 40 Dimension 315 x 250 x 165 mm Weight 15kg LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Leakage Tester Leakage Tester Leakage Current Test Instrument Rek2675 The Key Features Current leakage tester contact current tester is used for testing the leakage current not relating with work which the working power source or other power source of electrical appliance occurs through insulted or distributed parameter impedance Its input impedance simulates body s impedance and meets the requirements of GB4706 1 2002 Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 220V Relative Humidity 0 40 Dimension 390 x 190 x 280 mm Weight 8kg2. Dimensions 295X 165 X 140 Power Supply HY 3003D MASTECH DC Power Supply 0 to 30 VDC 0 3 AMP Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V 60hz 220V 50hz Frequency domain 50Hz 60KHz Working temperature 0 C 40 C Dimensions 295X 165 X 140 Weight 13lbs Power Supply MASTECH VARIABLE LINEAR DC POWER SUPPLY 50V 3A HY5003D Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V 60hz 220V 50hz Frequency domain 50Hz 60KHz Working temperature 0 C 40 C Dimensions 9 1 x 6 4 x 3 8 Weight 18lbs Power Supply MASTECH HY3002F 2 DUAL DC POWER SUPPLY 2 x 0 30V 2 x 0 2A Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V 60hz 220V 50hz Frequency domain 50Hz 60KHz Working temperature 0 C 40 C Dimensions 365 X 265 X164 mm Display type 4 LED with 2 colors Power Supply MASTECH HY3003F 3 Triple DC Power Supply Dual Colour Displays Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V 60hz 220V 50hz Frequency domain 50Hz 60KHz Working temperature 0 C 40 C Dimensions 365 X 265 X164 mm Display type 4 LED with
3. size 155 90 48mm Weight 270g including battery Working temperature 0 C 40 C Relative humidity 80 Max LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Frequency Counter and Multifunction Counter Frequency Counter and Multifunction Counter New Intelligent Frequency Resolution Counter 0 01Hz 2 4GHz VC3165 The Key Features Based on microprocessor frequency period and equal precision measurement 8 digit LED display Range from 0 01Hz to 2 4GHz stability and low cost Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 220V 110V Dimension 270mm x 215mm x 100mm Weight 1 6 kg Frequency 50MHz to 2 4GHz Precision standard time error t x frequency f 1d Frequency Counter and Multifunction Counter New Multifunction Counter 10Hz 2700MHz TFC2700L The Key Features 10Hz 2700MHz multifunction counter 8 digit LED display Range from 0 01Hz to 2 4GHz stability and low cost Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Dimension 207mm x 85mm x 255mm Weight 5lb Frequency 10Hz 10MHz direct counter 10MHz 100MHz prescaled by proportion Warm up time 20 minutes
4. 1999 info ldbenterprises com Power supply 110V 220V 50Hz 60Hz Power Consumption 5 Watt Dimension 142 W X233 D X197 H mm Signal Generators TFC 2700L HI PRECISION FREQUENCY COUNTER The Key Features This instrument is one of multifunctional and hi precision frequency conters that measures frequency from 10Hz to 2700MHz It features eight digits bright seven segment LED display four function performance Low power consumption circuit design small size light weitht high stabilized crystal over oscillator for measurement of accuracy and full input signal conditioning Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply line 220V 10 45Hz 70Hz Humidity operating 10 90 RH Weight Approximate 2 2 Kg Dimension 142 W X233 D X197 H mm LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Multimeters Multimeter New Digital Multimeter w Capacitance Test VC890D The Key Features It is manual measurements digital meter with three and a half digit It is big screens with overload protection Continuity triode magnify capacitance tests and data hold function Guaranteed for life Designed tough for harsh work environments but with accuracy meters Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 i
5. digital LCD display for temperature Protection against short circuit Heating element Ceramic heater Constant Temperature Iron holder and the base are separable Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Power Consumption 60 watt Output Voltage 24V AC Temperature Range 200 480 C 392 896 F Temperature Setting Temperature knob control Dimensions 4 7 W x3 7 H x6 7 D Weight 4Lbs Rework Stations New 936 Soldering Station ESD 936 The Key Features Rapid temperature heat up and recovery fast heat delivery Tip to ground potential lt 2 mV TYP 0 6mV Protection against short circuit Heating element Ceramic heater Constant Temperature Iron holder and the base are separable Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Power Consumption 60 watt Output Voltage 24V AC Temperature Range 200 480 C 392 896 F Temperature Setting Temperature knob control Dimensions 4 7 W x3 7 H x6 7 D Weight 4Lbs Rework Stations Soldering and Hot Air Station 852D The Key Features Advanced micro computer technology improves the circuit stability and prolongs service life of the unit Unique bui
6. 2 colors LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Process Calibrator Process Calibrator Process Calibrator VC11 The key Features This process calibrator is advance than Vc11 Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 6F22 9V Max permitted voltage 30V Working temperature 0 C 50 C Dimensions 200 x 100 x 40mm Relative humidity less than 80 LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Resistance Tester Resistance Tester DC Power Supply PS303D The Key Features Test Milliohm level resistance value while multimeter tests ohm level resistance Can test both passive and active objects Fast and reliable tool to test batteries Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Power consumption 8W Dimension 250 x 210 x 70 mm Weight 4 5 lb Resistance Tester Earthing Resistance Tester REK2678X The Key Features RK2678X earthing resistance tester is suitable for measuring the resistance value between metallic part of motors appliances instruments meters domestic apparatuses that are supplied power with power grid and their protective earthing terminal Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC
7. ERPRISES INC 402 991 1999 info ldbenterprises com Power Requirement 25Watt Input Voltage AC 110V 50 60Hz Frequency range 15Hz 1 5MHz Waves available Sine wave square wave Dimension 142 W x233 D x197 H mm Weight 4Lbs Signal Generators New Function Signal Generator 0 2Hz 2MHz VC2002 The Key Features Output wave form such as sine square rectangle sawtooth and triangle waves frequency and amplitude can be adjusted 4 or 5 digit LED display Range from 0 2Hz to 2MHz stability and low cost Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V 220V 50Hz 60Hz Size 270mm x 215mm x 100mm Weight 5 lbs Working temperature 0 C 40 C Signal Generators New Audio Signal Generator 10KHz 1MHz RAG101 The Key Features Reliable circuitry Insure high stability and accuracy Easy operation on vertical type panel assembling Frequency range from 10Hz to 1MHz selectable in 5 ranges are calibrated with single scale graduations More than 5V rms at no load and more than 2 8V rms on 600 loading Sine Wave Output level can be adjusted by a 10dB step 6 range attenuator and a level adjuster Sine wave and square waves available Synchronizing input terminal Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991
8. LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Rework Stations Rework Stations New 850D Desoldering Station The Key Features Rapid temperature heat up and recovery fast heat delivery Air flow is adjustable Air temperature is adjustable Metal Heater Constant Temperature Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Power Consumption 270Watt Type of pump Membranous Air flow 0 3 24L min Adjustable Pump power 45Watt Heater 250W metal Air temperature 100 C 420 C Adjustable Rework Stations New 852 Soldering and Desoldering Station The Key Features Rapid temperature heat up and recovery fast heat delivery Air flow is adjustable Air temperature is adjustable Metal Heater Constant Temperature Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Power Consumption 270Watt Type of pump Membranous Air flow 0 3 24L min Adjustable Pump power 45Watt Heater 250W metal Air temperature 100 C 420 C Adjustable Rework Stations New 936 Soldering Station ESD w Digital LCD 936LCD The Key Features Rapid temperature heat up and recovery fast heat delivery Accurate
9. LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Signal Generators Signal Generators New Precision RF Signal Generator 100KHz 150MHz T17 The Key Features Wide Frequency range 100KHz 150MHz Low distortion AF oscillator installed supplying Amplitude Modulation AM with tunable range from 150Hz 1 5KHz AF output terminal works as audio generator as well Specification Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power Requirement AC 110 220V 50 60Hz Frequency accuracy on scale 5 RF output Min 100 mV rms up to 35 MHz unloaded Output control 1mV to 100mV measured from output terminal Modulation Amplitude modulation AM 30 approx Audio output Min 2V rms Audio frequency 150Hz 1 5KHz External audio input 50Hz 20KHz at less than 1V rms input Dimension 142 W x233 D x197 H mm Weight 4Lbs Signal Generators New Audio Signal Generator 15Hz 1 5MHz T101 The Key Features Reliable circuitry insures high stability and accuracy Easy operation on slim type panel assembling Frequency range from 20Hz 1 5MHz selectable in 5 ranges are shown on a 4 digits display More than 5V rms at no load Output level can be adjusted by a 3 switches 70db attenuator and a level adjuster Sine wave and square wave are available Specifications Click Here To Download Manual LIU amp DB ENT
10. Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply one 9V battery 6F22 or equivalent Range Manual range only size 185 L X93 W X35 H mm Weight Approx 290g Working temperature 0 C 40 C Relative humidity 80 Max Multimeter LDB VC830L 3 1 2 Digital Multimeter Economy Model The Key Features New type holster streamline design Large LCD makes the reading clearly Metallic screen board with stronger antimagnetic and anti interferential function No power off under natural operation New type battery case design it s easy to change battery Specifications LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply one 9V battery 6F22 or equivalent Range Manual range only size 145 X 80 X 28 MM Weight Approx 180g Working temperature 0 C 40 C Relative humidity 80 Max Multimeter LDB 3 1 2 Digital Multimeter VC9808 The Key Features New type holster streamline design Large LCD makes the reading clearly Metallic screen board with stronger antimagnetic and anti interferential function No power off under natural operation New type battery case design it s easy to change battery Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply one 9V battery 6F22 or equivalent Range Manual range only s
11. W Weight 3kg LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Mllivoltmeter Millivoltmeter Two Channel Millivoltmeter RVT322 The Key Features Two channels One channel more than MVT321 Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 220V Frequency domain 50Hz 60KHz Working temperature 0 C 40 C Dimensions 142 W 210 H 235 D mm Weight 3 2kg LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power Suppley s Power Supply DC Power Supply PS303D The Key Features It can be used as stabilized voltage supply or stabilized current supply Output voltage can be adjusted from 0 voltage to nominal value continually It possesses the best degree of stability and corrugation coefficient and perfect protect circuit for overload Maximum output current 3A voltage 30V Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Frequency domain 50Hz 60KHz Working temperature 0 C 40 C Power Supply Variable Single Output Dual Display DC Power Supply 30V 5A Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Frequency domain 50Hz 60KHz Working temperature 0 C 40 C
12. al range only size 185 X 93 X 35mm Weight 290g Working temperature 0 C 40 C Relative humidity less than 75 Multimeter Multimeter w Capacitance Temperature Frequency RA70D The Key Features It is manual measurements digital meter with three and a half digit It is big screens with overload protection Continuity triode magnify capacitance tests and data hold function Guaranteed for life Designed tough for harsh work environments but with accuracy meters Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 6F22 9V Range Manual range only size 170 X 84 X 41mm Weight 330g Working temperature 0 C 40 C Relative humidity less than 75 Multimeter Digital Multimeter w Capacitance amp Temperature RA70C The Key Features It is manual measurements digital meter with three and a half digit It is big screens with overload protection Continuity triode magnify capacitance tests and data hold function Guaranteed for life Designed tough for harsh work environments but with accuracy meters Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 6F22 9V Range Manual range only size 170 X 84 X 41mm Weight 330g Working tem
13. ecification Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Tachometer Tachometer Laser Photo Tachometer DT2234C The Key Features Measurement for RPM is safe and accurate without contact to target Wide range and high resolution Exclusive microcomputer LSI circuit and crystal time base assure accurate and fast measurement The last max and min value are automatically recorded in memory and displayed at anytime Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 4 pcs 1 5V AAA battery Range Manual range only Size 190 x 72 x 37mm Weight 300g Working temperature 0 C 50 C LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Oscilloscopes Oscilloscope DualTrace Oscilloscope MOS620CH The Key Features High intensity CRT with high acceleration voltage Trigger level lock function which makes the triggering adjustment unnecessary Alternate triggering Even an observation of two waveforms of different frequencies the waveform of each channel is stably triggered TV sync triggering The oscilloscope has a sync separator circuit for triggering of TV V and TV H signals X Y operation Set the switch to X Y Then
14. ecifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Frequency domain 20Hz 20KHz Working temperature 0 C 40 C Relative humidity 90 Max Audio Testing Audio Sweeper MP1212BL The Key Features LCD display output scope and frequency This unit has the functions of output delay at power on and short circuit protection Tool to test the and polarity of loudspeaker earphone and dynamic receiver of various types sizes and impedances With easy operation this unit is widely applied to acoustics telecommunications and other many fields and to the loudspeaker and sound box manufacturers in particular Produce the aural signal to test the sound and to accurately identify the polarity and pure tone index of loudspeakers Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V Frequency domain 20Hz 20KHz Working temperature 0 C 40 C Relative humidity 90 Max Audio Testing Speaker Microphone Automatic Polarity Tester MP5991 The Key Features Specifications for specification in detail see user manual Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Electronics Parameter Teste
15. ely controls temperature and airflow Digital display of hot air set and actual temperature as well as its airflow Hot Air Gun is also designed with a unique 15 minute stand by auto sleep mode It will return to the previous setting when the handle is lifted up again Auto cool off process that leaves the blower on until the nozzle is cool this prolongs life of the heating element and to ensure safety Air Flow gauge and knob adjustment for the hot air flow Maintains a constant set temperature when the set and the value is reached Lead Free Type Soldering Iron heats up very quickly and has a smoke absorber Specifications Refer user manual for complete specification Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Rework Stations All In One Station The Key Features De soldering gun with vacuum pump ESD Safe Unit Microprocessor precisely controls temperature and airflow Digital display of hot air set and actual temperature as well as its airflow Auto cool off process that leaves the blower on until the nozzle is cool this prolongs life of the heating element and to ensure safety Air Flow gauge and knob adjustment for the hot air flow Maintains a constant set temperature when the set and the value is reached Lead Free Type Soldering Iron heats up very quickly and has a smoke absorber Specifications Refer user manual for complete sp
16. ize 185 x 93 x 35mm Weight 290g including battery Working temperature 0 C 40 C Relative humidity 80 Max Multimeter New LDB VICTOR 4 1 2 Digital Multimeter VC9806 The Key Features New type holster streamline design Large LCD makes the reading clearly Strong antimagnetic and anti jamming performance No power off under natural operation New type battery case design it s easy to change battery Unit symbol display very easy to reading Max measuring range of capacitance 200uF Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply one 9V battery 6F22 or equivalent Range Manual range only size 185 x 93 x 35mm Weight 290g including battery Working temperature 0 C 40 C Relative humidity 80 Max Multimeter LDB VC890C 3 1 2 Digital multimeter The Key Features New type holster streamline design Large LCD makes the reading clearly Strong antimagnetic and anti jamming performance No power off under natural operation New type battery case design it s easy to change battery Unit symbol display very easy to reading Max measuring range of capacitance 200uF Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply one 9V battery 6F22 or equivalent Range Manual range only
17. ldbenterprises com Oscilloscope VELLEMAN HPS10 Hand Held Oscilloscope The Key Features 10MHz sampling rate 0 1mV sensitivity Up to 2MHz analogue bandwidth 5mV to 20V div in 12 steps 200ns to 1hour div time base in 32 steps Full auto set up Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 5x 1 5V AA battery or Nicd NiMH includes battery charging circuit Lcd display 128x64 pixels high contrast Oscilloscope VELLEMAN HPS40 Hand held Oscilloscope with PC interface The Key Features PSO 40 is a user friendly feature packed and genuinely hand held oscilloscope w a number of characteristics Low noise high sensitivity modest weight a backlit LCD amp a choice between regular batteries or rechargeable ones Furthermore the scope also offers a selection of 5 different screen layouts Both novices and professional users will admire the fast and fully automatic setup function allowing them to perform measurements without physically touching the unit Floating measurements are completely safe thanks to the battery powered operation and the included fully insulated measuring probe These features make the PSO 40 indispensable to the professional user service centers and even to the hobbyist Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 i
18. lt in sucker improves the operation of maintenance of SMD BGA LED display of temp and airflow setting to be more accurate and reliable Vortex rotation provides heating and airflow in large area for different needs Sound auto protection system in alarm alert and auto power cutoff of damaged heater sensor Adjustable timer control for different maintenance Auto Manual mode is convenient and prompt maintenance Flexible Programmable function is suitable for different maintenance purposes Auto sleep for energy save and environment protection Auto cutoff and cooling for safety It is especially suitable for sensitive component Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V 0r 220V Power Consumption 540 Watt Air flow 0 3 24L min Adjustable Pump power 25Watt Heater 350W metal Air temperature 100 480 0 3 0 0 0 6 Rework Stations Hot Air Station 850 The Key Features Rapid temperature heat up and recovery fast heat delivery Air flow is adjustable Air temperature is adjustable Metal Heater Constant Temperature Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V or 220V Power Consumption 270Watt Type of pump Membranous Air flow 0 3 24L min Adj
19. ly V 6F22 or the equivalent Range Manual range only size 260mm 220mm 82mm Weight approx 2kgs Working temperature 0 C 40 C Relative humidity 80 Max Multimeter Multimeter Vc97 The Key Features The meter is a high performance high accuracy 3 3 4 digit 32mm digit high by LCD displaying meter The function includes DCV ACV DCA ACA resistance capacitance frequency temperature duty cycle measurement triode diode and continuity test Also with the function of unit signal displaying relative value measuring auto range manual range switch auto power off and warning function etc Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 2pcs 1 5V AAA 7 battery Range Manual range only size 185 L X93 W X35 H mm Weight Approx 290g Working temperature 0 C 40 C Relative humidity 80 Max Multimeter LDB 3 1 2 Digital Multimeter Dm 4070 The Key Features The meter is a high performance high accuracy 3 1 2 digit 32mm digit high by LCD displaying meter The function includes DCV ACV DCA ACA resistance capacitance frequency temperature duty cycle measurement triode diode and continuity test Also with the function of unit signal displaying relative value measuring auto range manual range switch auto power off and warning function etc Specifications Click Here To Download
20. nfo ldbenterprises com Power supply 5x 1 5V AA battery or Nicd NiMH includes battery charging circuit Lcd display 192x112pixels high contrast Oscilloscope 1 LDB DQ2025CN 25MHz Digital Storage Oscilloscope w LCD The Key Features 250MSa s 1GSa s sampling rate 2 X 512K words per channel record length FFT function Auto setting for quick setup and waveform acquisition 5 7 inch color black white LCD display multicolor interface available Advanced cursor modes manual auto and track USB HOST DEVICE RS232 interface Specifications LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V or 220V Size 320 W x 150 H x 130 D mm Weight 2 5kg LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Audio Testers Audio Testing Audio Sweeper mp1212bl The Key Features LCD display output scope and frequency This unit has the functions of output delay at power on and short circuit protection Tool to test the and polarity of loudspeaker earphone and dynamic receiver of various types sizes and impedances With easy operation this unit is widely applied to acoustics telecommunications and other many fields and to the loudspeaker and sound box manufacturers in particular Produce the aural signal to test the sound and to accurately identify the polarity and pure tone index of loudspeakers Sp
21. nfo ldbenterprises com Power supply 9V x 1 NEDA 1604 6F22 or equivalent model Range Manual range only size 155 x 90 x 48mm Weight 270g Working temperature 0 C 40 C Relative humidity less than 75 Multimeter New Digital Multimeter w Capacitance Test RA70B The Key Features It is manual measurements digital meter with three and a half digit It is big screens with overload protection Continuity triode magnify capacitance tests and data hold function Guaranteed for life Designed tough for harsh work environments but with accuracy meters Convenient and safe to operate Specifications LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 6F22 9V Range Manual range only size 170 X 84 X 41mm Weight 270g Working temperature 330g Relative humidity less than 75 Multimeter Multimeter w Capacitance Temperature Frequency VC99 The Key Features It is manual measurements digital meter with three and a half digit It is big screens with overload protection Continuity triode magnify capacitance tests and data hold function Guaranteed for life Designed tough for harsh work environments but with accuracy meters Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 2 pcs 1 5V AAA battery Range Manu
22. perature 0 C 40 C Relative humidity less than 75 Multimeter Bench Type Digital Multimeter VC8045 The Key Features It is manual measurements digital meter with three and a half digit It is big screens with overload protection Continuity triode magnify capacitance tests and data hold function Guaranteed for life Designed tough for harsh work environments but with accuracy meters Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply supply DC 220V 110V 50 60Hz Range Manual range only size 260mm 220mm 82mm Weight approx 2kgs Working temperature 0 C 40 C Relative humidity less than 75 Multimeter Digital Capacity Multimeter VC6013 The Key Features Easy and correct readout High measuring accuracy Measurements are possible even under a strong magnetic field LSI circuit provides high reliability and durability Input overload protection is provided LCD display for low power consumption and clear readout even in bright ambient light conditions In line pushbuttons allow one hand operation Light weight and compact construction for easy operation Low battery condition is indicated on the LCD display Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supp
23. r Electronics Parameter Tester Digital Power Meter Electronics Parameter Tester Rek 9800 The Key Features It is made up of input voltage input and current input micro controller display and interfaces Input voltage is programmable amplified after divider circuit and then input to A D convertor in the process of voltage input Sample current sensor make current transform to voltage then programable amplified and input to A D convertor in the process of current input Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 220V Frequency domain 50Hz 60KHz Working temperature 0 C 40 C Power dissipation 5W Weight 3kg Electronics Parameter Tester Digital Power Meter Electronics Parameter Tester Rek9901 The Key Features It is made up of input voltage input and current input micro controller display and interfaces Input voltage is programmable amplified after divider circuit and then input to A D convertor in the process of voltage input Sample current sensor make current transform to voltage then programable amplified and input to A D convertor in the process of current input Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 220V Frequency domain 50Hz 60KHz Working temperature 0 C 40 C Power dissipation 5
24. the instrument works as an X Y oscilloscope CH1 can be applied as horizontal deflection X axis while CH2 provide vertical deflection Y axis Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V or 220V Size 310W x 150H x 455D mm Weight 18 lb Oscilloscope Student Oscilloscope CQ 5002 The Key Features 2MHz single channel Sensitivity 50mV Easy to operate Low cost high performance Signal input with binding post Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Oscilloscope New CQ620CF 20Mhz Analog Oscilloscope w frequency Counter The Key Features 20MHz dual channel ALT triggering function Encoder for sweep switch Fully sealed long life vertical sensitivity switch 10 times sweep magnification TV synchronization X Y mode Build in 6 digital frequency counter Economic choice for high quality Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V or 220V Size 310W x 150H x 455D mm Weight 18 lb Oscilloscope CQ5010A Single Channel Osilloscope 10MHz 5Mv DIV The Key Features 10MHz single channel TV synchronization X Y mode sensitive 5mV DIV Economic choice for high quality Specifications Click Here To Do
25. ustable Pump power 45Watt Heater 250W metal Air temperature 100 C 420 C Adjustable Rework Stations Soldering and Hot Air Station 852 The Key Features Rapid temperature heat up and recovery fast heat delivery Air flow is adjustable Air temperature is adjustable Metal Heater Constant Temperature Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V or 220V Power Consumption 270Watt Type of pump Membranous Air flow 0 3 24L min Adjustable Pump power 45Watt Heater 250W metal Air temperature 100 C 420 C Adjustable Rework Stations Soldering and Hot Air Station The Key Features Rapid temperature heat up and recovery fast heat delivery Air flow is adjustable Air temperature is adjustable Metal Heater Constant Temperature Convenient and safe to operate Specifications Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V or 220V Power Consumption 270Watt Type of pump Membranous Air flow 0 3 24L min Adjustable Pump power 45Watt Heater 250W metal Air temperature 100 C 420 C Adjustable Rework Stations Aoyue dual function repair system The Key Features De soldering gun with vacuum pump ESD Safe Unit Microprocessor precis
26. wnload Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Power supply 110V or 220V Size 220W x 90H x 270D mm Weight 3kg Oscilloscope VELLEMAN PCSU1000 USB PC OSCILLOSCOPE The Key Features 2 channels 1 external trigger input USB PC oscilloscope USB port 1 1 or 2 0 compatible Economic choice for high quality Specifications For specification see user manual Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info ldbenterprises com Oscilloscope PCS500AU VELLEMAN 50 MHZ DIGITAL STORAGE OSCILLOSCOPE FOR PC The Key Features The PCS500 is a digital storage oscilloscope that uses a computer and its monitor to display waveforms All standard oscilloscope functions are available through the supplied Windows program Its operation is identical to that of normal oscilloscope apart from the fact that all operations can be performed with the mouse Connection is through the computer s parallel port and the scope is completely optically isolated from the computer port The oscilloscope and transient recorder have two completely separated channels with a sampling frequency up to 1GHz Any waveform displayed on the screen can be stored for later use in documents or for the comparison of waveforms Specifications For specification see user manual Click Here To Download Manual LIU amp DB ENTERPRISES INC 402 991 1999 info
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