Friday, July 29, 2011

MQ137 Semiconductor Sensor for Ammonia

MQ137 Semiconductor Sensor for Ammonia

Sensitive material of MQ137 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
MQ137 gas sensor has high sensitity to Ammonia, also to other organic amine. The sensor could be used to detect different gas which contains Ammonia, it is with low cost and suitable for different application.

Character

* Good sensitivity to Ammonia
* Long life and low cost
* Simple drive circuit

Application

* Domestic Ammonia detector
* Industrial Ammonia gas detector
* Portable gas detector

MQ138 Semiconductor Sensor for Organic Steam

MQ138 Semiconductor Sensor for Organic Steam

Sensitive material of MQ138 gas sensor is SnO2, which with lower conductivity in clean air. When the target Organic Steam exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
MQ138 gas sensor has high sensitity to Toluene, Acetone, Ethanol and Formaldehyde, also to other organic steam. The sensor could be used to detect different organic steam, it is with low cost and suitable for different application.

Character

* Good sensitivity to Organic Steam
* High sensitivity to Toluene, Acetone and Ethanol
* Long life and low cost
* Simple drive circuit

Application

* Domestic Organic steam detector
* Industrial Organic steam detector
* Portable gas detector

MQ-3 Semiconductor Sensor for Alcohol

MQ-3 Semiconductor Sensor for Alcohol

Sensitive material of MQ-3 gas sensor is SnO2, which with lower conductivity in clean air. When the target alcohol gas exist, The sensor’s conductivity is more higher along with the gas concentration rising.
Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
MQ-3 gas sensor has high sensitity to Alcohol, and has good resistance to disturb of gasoline, smoke and vapor. The sensor could be used to detect alcohol with different concentration, it is with low cost and suitable for different application.

Character 

* Good sensitivity to alcohol gas
* Long life and low cost
* Simple drive circuit

Application

* Vehicel alcohol detector
* Portable alcohol detector

MQ-4 Semiconductor Sensor for Natural Gas

MQ-4 Semiconductor Sensor for Natural Gas

Sensitive material of MQ-4 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
MQ-4 gas sensor has high sensitity to Methane, also to Propane and Butane. The sensor could be used to detect different combustible gas, especially Methane, it is with low cost and suitable for different application.

Character 

* Good sensitivity to Combustible gas in wide range
* High sensitivity to Natural gas
* Long life and low cost
* Simple drive circuit

Application

* Domestic gas leakage detector
* Industrial Combustible gas detector
* Portable gas detector

MQ-5 Semiconductor Sensor for Combustible Gas

MQ-5 Semiconductor Sensor for Combustible Gas

Sensitive material of MQ-5 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
MQ-5 gas sensor has high sensitity to Methane, Propane and Butane, and could be used to detect both Methane and Propane. The sensor could be used to detect different combustible gas especially Methane, it is with low cost and suitable for different application.

Character 

* Good sensitivity to Combustible gas in wide range
* High sensitivity to Methane, Butane and Propane
* Long life and low cost
* Simple drive circuit

Application

* Domestic gas leakage detector
* Industrial Combustible gas detector
* Portable gas detector

MQ-7 Semiconductor Sensor for Carbon Monoxide (CO gas)

MQ-7  Semiconductor Sensor for Carbon Monoxide (CO gas)
Sensitive material of MQ-7 gas sensor is SnO2, which with lower conductivity in clean air. It make detection by method of cycle high and low temperature, and detect CO when low temperature (heated by 1.5V). The sensor’s conductivity is more higher along with the gas concentration rising. When high temperature (heated by 5.0V), it cleans the other gases adsorbed under low temperature. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration. MQ-7 gas sensor has high sensitity to Carbon Monoxide. The sensor could be used to detect different gases contains CO, it is with low cost and suitable for different application.

Character Configuration

*Good sensitivity to Combustible gas in wide range
* High sensitivity to Natural gas
* Long life and low cost
* Simple drive circuit

Application

* Domestic gas leakage detector
* Industrial CO detector
* Portable gas detector

MQ-6 Semiconductor Sensor for LPG

MQ-6 Semiconductor Sensor for LPG

Sensitive material of MQ-6 gas sensor is SnO2, which with lower conductivity in clean air. When the target combustible gas exist, The sensor’s conductivity is more higher along with the gas concentration rising. Please use simple electrocircuit, Convert change of conductivity to correspond output signal of gas concentration.
MQ-6 gas sensor has high sensitity to Propane, Butane and LPG, also response to Natural gas. The sensor could be used to detect different combustible gas, especially Methane, it is with low cost and suitable for different application.

Character

* Good sensitivity to Combustible gas in wide range
* High sensitivity to Propane, Butane and LPG
* Long life and low cost
* Simple drive circuit

Application

* Domestic gas leakage detector
* Industrial Combustible gas detector
* Portable gas detector

PROTEK DF1760SL5A Power supply, 0-60V, 0-5Amp

PROTEK DF1760SL5A Power supply, 0-60V, 0-5Amp


Technical Specs:

  • Linear Output 0 to 60V, 0 to 5A
  • Ideal DC Source for Laboratories (Government, Education etc) , Industrial application
  • Excellent Stability and Precise Voltage and Current Level Setting
  • Adjustable Constant Voltage/Current and Overload Indicator
  • Isolated Outputs for Series or Parallel operation
  • 3 Digit LED Read-outs
  • Low ripple noise
  • Superior Line/Load Regulation

Protek DF1730SB5A Power Supply, 0-30V, 0-5Amp

Protek DF1730SB5A Power Supply, 0-30V, 0-5Amp

Tech Specs:

  • Linear output 0 to 30V, 0 to 5A
  • Ideal DC Source for Laboratories (Government, Education etc) , Industrial application
  • Excellent Stability and Precise Voltage and Current Level Setting
  • Adjustable Constant Voltage/Current and Overload Indicator
  • Isolated Outputs for Series or Parallel operation
  • 3 Digit LED Read-outs
  • Low ripple noise
  • Superior Line/Load Regulation

Thursday, July 28, 2011

Protek 2120 200MHz Digital Storage Oscilloscope

Protek 2120 200MHz Digital Storage Oscilloscope

  • 200MHz Bandwidth with 2 Channels
  • Real Sampling Rate: 1Gsa/s
  • 50Gsa/s Equivalent-Time Sampling Rate
  • Large 5.7 inch TFT Color Display
  • Three Math Functions Including "+", "-" and "FFT"
  • Multi-Languages Support
  • USB (Host & Device), RS232 & RJ45 Interface
  • Battery Power Operation (Optional)

Specifications
Channels2
Bandwidth200MHz
Rise Time1.8ns Approximately
Input ImpedanceResistance: 1M ±2%
Capacitance: (20±5)pF
PolarityNormal and Invert
Maximum Input400V (AC + DC Peak)
Waveform Signal ProcessCH1±CH2, CHlxCH2, CHlICH2, FFT
Bandwidth Limit40MHz / -3dB
SourceCH1, CH2,  EXT., City Electricity
ModeEdge, Pulse, Video, Slope Trigger
SensitivityMaximum 1 Div. (Frequency upper Limit to 40 MHz),
Maximum 2 Div., TV-V, TV-H, Video Trigger
Ext. Trigger Input ImpedanceResistance: 1Mohm ±2%
Capacitance: (20±5)pF
Ext. Trigger SensitivityMaximum 100mVp-p (Frequency Support Limit to 40MHz)
200mVp-p, TV-V, TV-H, Video Trigger
Max. Input Voltage400V (AC + DC Peak)
Low Frequency InhibitionFrequencies Less Than 100Khz will be inhibited
High Frequency InhibitionFrequencies Greater Than 100Khz will be inhibited
SamplingReal-Time Max. Sampling Rate:
0 series is 500MSa/s, 1 Series is 1GSa/s
Range (1-2-5 Increments)50s/div ~ 1ns/div
ModeMain Sweep, Main Sweep and Delay Expansion Sweep, X - Y
X-Axis InputChannel 1
Y-Axis InputChannel 2
Phrase ShiftMaximum 3 Degrees at 5MHz
Voltage MeasurementVpp, Vamp, Vrms, Vhi, Vlo, Vmax, Vmin, Pre-Shoot, Overshoot
Time MeasurementFrequency, Rise time, Fall time, Positive Width, Negative Width, Duty Cycle
Delay MeasurementDelay 1 -> 2 Delay 1 -> 2 
Cursors MeasurementVoltage Difference Between Cursors: Δ V
Time Difference Between Cursors: Δ T
Frequency Difference Between Cursors: 1 Δ T
TFT LCD Type5.7 Inch
Display Resolution240 (Vertical) x 320 (Horizontal) Dpi
RS232 InterfaceDB 9-Pin RS232 Interface
USBUSB Host / Device 2.0 Full Speed Supported
Line Voltage RangeAC 100V ~ 240V ± 10%, 45Hz ~ 440Hz, Auto Selection
Battery Power OptionLi-Ion Battery
Dimensions300 x 150 x 130mm
Weight2.5Kgs, 5.5lbs

Protek 3006 2 Channel, 60MHz Digital Storage Oscilloscope

Protek 3006 2 Channel, 60MHz Digital Storage Oscilloscope

  • 60MHz Bandwidth with 2 Channels
  • 500MSa Real-time Sampling Rate
  • 25GSa/s Equivalent-Time Sampling Rate
  • Large 7-inch Color Display
  • Record Length up to FFT
  • Multi-Languages Support
  • USB Host and Device Connections



Specifications
Vertical Specifications
Channels2
Bandwidth60MHz
Rise Time5.8ns (Approx.)
Input ImpedanceResistance: 1 M +/- 2%
Capacitance: (20+/-5) pF
PolarityNormal & Invert
Maximum Input400V (DC + AC Peak)
Waveform Signal
Process
CH1 +/- CH2, CH1 x CH2, CH1/CH2, FFT
Bandwidth Limit20MHz +/-% Typical
Horizontal Specifications
Sampling Rate500MSa/s
Equivalent Max. Sampling Rate is 25GSa/S for all Times
Range
(1 - 2 - 5 Increments)
50s/div ~ 10ns/div
ModeMain Sweep, Main Sweep + Delay Expansion Sweep, X-Y
Trigger Specifications
SourceCH1, CH2, EXT., EXT/5, AC Line
ModeAuto, Normal, Single
Trigger SensitivityDC: CH1/2 (typical) 1 Div from DC to 10MHz; 1.5div from 10MHz to full
EXT (Typical): 200mV from DC to 40MHz
EXT/5 (Typical): 1V from FC to 40MHz
AC: Attenuates signal below 10Hz
HF Reject: Attenuates signals below 15kHz
LF Reject: Attenuates signals below 150 kHz
Noise Reject: Reduces trigger sensitivity
Trigger Level RangeCH1, CH2: +/- Division from center of screen
EXT: +/- 1.2V
EXT/5: +/- 6V
Trigger Level Accuracy
(Accuracy is for signals having
rise and fall time at max 20ns)
CH1, CH2: +/-(0.3div x V/div)(within +/-4 Division from center of screen)
EXT: +/- (6% of Setting + 40mV)
EXT/5: +/- (6% of setting + 200mV)
Edge TriggerRising, Falling, Rising & Falling
Pulse Width TriggerTrigger (when >, <, =) on positive or negative pulses
Pulse width range: 20ns ~ 10s
Videon TriggerTrigger on NTSC, PAL, or SECAM standard video signal
Line Range: 1-525 (NTSC), 1 - 625 (PAL/SECAM)
Slope TriggerTrigger (when >, <, =) on positive or negative slope, Set Time: 20ns ~ 10s
Overtime TriggerFrom the rising or falling edge, Set Time: 20ns ~ 20s
Alternative TriggerInternal Trigger on edge, pulse width, video or slope
Cursors and Measurement
Voltage MeasurementVpp, Vamp, Vrms, Vhi, Vlo, Vmax, Vmin, Pre-shoot, Overshoot
Time MeasurementFrequency, Rise Time, Fall Time, Positive Width, Negative Width, Duty Cycle
Delay MeasurementDelay 1- > 2 
Delay 1- > 2 
Cursor MeasurementVoltage Difference between cursors V
Time Difference between Cursors T
Frequency difference between Cursors 1 T
Display
TFT LCD Type7.0 Inch Diagonal Crystal Display
Display Resolution800 x 480 Dots
General Specifications
USBUSB Host / USB Device
Power SourceAC 100V ~ 240V +/- 10%, 45Hz ~ 440Hz, Auto Selection
Physical Dimensions12.3 x 4.25 x 5.6" inches (313 x 108 x 142mm)
Weight4.6lbs (2.08Kg)

Protek DSO-2150 PC based Digital Storage Oscilloscope 60MHz

Protek DSO-2150 PC based Digital Storage Oscilloscope 60MHz (usb interface)



General Specifications
Maximum sampling rateRealtime sampling150MS/s
Bandwidth60MHz(-3dB)
Single shot bandwidth60MHz
Buffer size32K samples
Channels2 Channels
Voltage Range10mV ~ 5V/div @ 1 probe
100mV ~ 50V/div @ 10 probe
1V ~ 500V/div @ 100 probe
10V ~ 5000V/div @ 1000 probe
Accuracy±3%
Timebase Range4ns/div ~ 1h/div (1-2-4 sequence)
Offset Level+/-4 Divisions
CouplingAC, DC, GND
Impedance1M ohm
Input protection35Vpk(DC + peak AC; Without external attenuation)
Roll Mode1s/div ~ 1h/div
Range10 Divisions
Pre/Post Production0% ~ 100%
Trigger TYPEEdge trigger: Rising edge, Falling edge
Trigger modeAuto, normal, and single
AutosetYes
Settability0.03 div increments
Trigger Level+/-4 division
MeasurementsVp-p, Vmax, Vmin, Vmeans, Vrms, Vamp, Vhigh, Vlow, positive overshoot, negative overshoot, cycle mean, cycle rms, period, frequency, positive pulse width, negative pulse width, rise time (10% ~ 90%) fall time (10% ~ 90%), positive duty cycle, negative duty cycle
CursorTime/frequency difference, voltage difference
MathAddition, Subtraction, multiplication, Division
FFTRectangular, Hanning, Hamming, Blackman Window
InterfaceUniversal Serial Bus (USB)
PowerNo external source required
Bus-powered from USB1.7W)
Calibration Signal Output2V, 1kHz, Square Wave
Trace DisplayPoint/Line
Vertical Position VariableYes
GridOn/Off
File ManagementImage save: .BMP, .JPG
Data Save: .dso
OLE (Object Linking and Embedding) automation: Data generation for Microsoft excel
Setting save/load
PrintPrint in color/mono

Cadik S10 Tool set kit

Cadik S10 Tool Set kit


contains :
(12 items)
1. Soldering iron
2. Screwdriver Philips 100x4
3. Screwdriver Philips 75x3
4. Screwdriver Slotted 100x4
5. Screwdriver Slotted 75x3
6. Long nose plier 4''
7. Long nose plier 5''
8. Cutting plier 5''
9. De-soldering pump
10. Digital Multimeter
11. Diamond File
12. Cutter knife

Wednesday, July 27, 2011

Protek DSO-5200A 200MHz usb oscilloscope

Protek DSO-5200A 200MHz usb oscilloscope





General Specifications
Maximum sampling rateRealtime sampling100MS/s
Equivalent Sampling25GS/s
Bandwidth200MHz(-3dB)
Single shot bandwidth100MHz
Buffer size10K ~ 512K samples
Channels2 Channels
Voltage Range10mV ~ 10V/div @ 1 probe
100mV ~ 100V/div @ 10 probe
1V ~ 1000V/div @ 100 probe
10V ~ 10000V/div @ 1000 probe
Accuracy±3%
Timebase Range2ns/div ~ 1h/div (1-2-4 sequence)
Offset Level+/-4 Divisions
CouplingAC, DC, GND
Impedance1M ohm
Input protection35Vpk(DC + peak AC; Without external attenuation)
Roll Mode1s/div ~ 1h/div
Range10 Divisions
Pre/Post Production0% ~ 100%
Trigger TYPEEdge trigger: Rising edge, Falling edge
Trigger modeAuto, normal, and single
AutosetYes
Settability0.03 div increments
Trigger Level+/-4 division
MeasurementsVp-p, Vmax, Vmin, Vmeans, Vrms, Vamp, Vhigh, Vlow, positive overshoot, negative overshoot, cycle mean, cycle rms, period, frequency, positive pulse width, negative pulse width, rise time (10% ~ 90%) fall time (10% ~ 90%), positive duty cycle, negative duty cycle
CursorTime/frequency difference, voltage difference
MathAddition, Subtraction, multiplication, Division
FFTRectangular, Hanning, Hamming, Blackman Window
InterfaceUniversal Serial Bus (USB)
PowerNo external source required
Bus-powered from USB1.7W)
Calibration Signal Output2V, 1kHz, Square Wave
Trace DisplayPoint/Line
Vertical Position VariableYes
GridOn/Off
File ManagementImage save: .BMP, .JPG
Data Save: .dso
OLE (Object Linking and Embedding) automation: Data generation for Microsoft excel
Setting save/load
PrintPrint in color/mono