BM Series User Manual (Hardware)
Contents
1. 1 II 111 3 3 3 Probe Ground Clip BM 102 amp 104 amp 204 2014 05 22 4 5 External Module Interface Only For BM104 External function modules like Signal Generator Logic Analyzer can be easily plugged into the interface on the DDS oscilloscope equipment In most cases the external modules are Plug N Play supported but we d suggest the user to plug unplug the modules in power off Status for its safety and stability BM 102 amp 104 amp 204 2014 05 22 4 Specification Category Interface Channels Built in Signal Max Sampling Rate Vertical Resolution Voltage range Noise range Trigger Coupling Triggering Conditions Trigger Input Impedance Memory Depth Power Weight Functionalities Index USB 2 0 2 1Hz 3 25V level standard square wave BM102 50Msps BM104 200Msps single 100Msps dual 8 bit Default 5V can be extended to 50v through x10 probe extended to 500v through x100 probe 1V div 500mV div 200mV div 100mV div 50mV div AC DC Trigger Level Rising Falling Edge Trigger Auto Normal Single None 1M 25pf BM102 4K Byte BM104 64K Byte lt 2W lt 400g Automatic measurement max min frequency rise time duty Vpp Vrms Vavg and DC voltage Precise vertical measurement with markers BM 102 amp 104 amp 204 2014 05 22 Precise horizontal measurement with markers Trig level adjustable via software Trig sensitivity adjustable via2. 3V 1KHz sine wave diagram 1V vertical 3V 1MHz sine wave diagram 1V vertical
3. BM Series User Manual Hardware For Oscilloscope Signal Generator and Logic Analyzer L WNE me rr ee Po rr er Rr ON ER EO 3 De We UU pe Spa esscietencisaa sae casas AANE A sees 4 Dr PACCOSSO CS ae nissan sees ec a ee ke cacao 6 3 DOWIE Lid CO cs each hs ac EEE aad Rata arden O aaa 7 3 USB CONNECCION eiea eee ie Ge NR eee eee 7 ZANA NOUE ea re cre ae a PPE Ne PPR UNTRUE OSU Pn ORE 7 eNO nee are repre a rr UP ITE Tan TU mEy Can YE LOTEUETEEET Tn ST aU RIEY CIT YER TRIUDIS ET EH PIPE 7 See BNO aae EA E A EA 8 ILO BM2 0 ee Pres OR RD CRE Ber HDS sO SOP cB OE Ea TOD nT ERO cnn ERAT ETT POD O Pn T 8 Bullt Stand ara Square Wave Sigil c ce2 bce ea Meee aA eA ales 9 EL PROD STC One CHONi etnies hee E antaceah eA et naiece daa E da eieuaee head ae eaaea ee 9 SoL Atendan SW IE enaa a a a a 9 33 2 Probe tunine Compensation Capacitor eere E ek ad een ea 10 3 3 3 POO Cnc cathe pete ae hia tts tac tents tc ea dense AEE AAA E OR 10 4 5 External Module Interface Only For BM104 0 ec cecccccccesseecccceeeseccsceeeeeeccsseeeeecssseeesecesseeneessseeeees 11 4 SPECIO oaea aa a aa A E ia Ea a 12 5 Signal Generator Module Optional Only For BM104 eeeeeesesssesseessesrreressssersessscrssesscresssreerssseceresseeereseseeress 13 6 Logic Analyzer Module Optional Only For DDS 140 eeesseeseeesessseesssereessssserrsssrceressscersssretresssceressseeresseeeress 14 2 YPE C Nara tEr CS eene A ES 16 BM 102 amp 104 amp 204 2014 0
4. 5 22 1 Warnings A Please note that the equipment should NOT be operated beyond the input voltage range A Please make sure that the alligator clip of the probe and the PC are both well grounded A Please do NOT connect the probe to the 220V 110V socket directly It is very dangerous for the device and the operating personnel WARNING Any Damage caused by misuse of the product will not be covered under our warranty Comments on A Input voltage range of the virtual oscilloscope device is 5V Although the virtual oscilloscope device has an internal input overvoltage protection circuit which can protect from several times overvoltage input there are still very serious unpredictable risks Be sure to choose the correct attenuator probe according to your testing voltage The equipment includes a standard x1 x10 probe In the x1 position the input voltage range is 5V in the x10 position the input voltage range is 50V if you select an optional x100 probe the input voltage range will be 500V Comments on A The virtual oscilloscope equipment is powered through USB port from PC If it s connected to and gets power from a PC then the PC should be properly grounded via a three prong plug If the equipment is connected to a laptop running on battery power then the ground will be floating So generally please make sure the equipment PC and the alligator clip of the probe are connected to earth Comments on A As briefly m
5. bling 3 Party software integration e Storage and playback Waveform storage continuous playback as well as specified frame playback e Arithmetic calculation and FFT analysis on input signals e Anti aliasing filter LPF e Memory function of users personalized settings e Mouse controlled trigger function setup Application e FAE diagnose e Portable testing equipment for Electronics Engineering like prototype development e Ideal development tool for hobbyist maker e Labs and college students BM 102 amp 104 amp 204 2014 05 22 Device structure Top View R 1M Q C 25pF 3 Accessories Standard accessories included e Probe x 2 e A USB Cable e A Resource CD BM 102 amp 104 amp 204 2014 05 22 3 Device Interface 3 1 USB Connection Please use the USB 2 0 cable included in the package Poor quality USB cable or using the front USB interface may cause shortage of power supply which may further result in problems like software crashes slowdown or devices not being recognized With BM104 204 we provide 2A 1B USB cable to get enough current for its running 3 2 Analog inputs 3 2 1 BM102 Topview BM102 has two analog input channels showed as ch1 and ch2 BM 102 amp 104 amp 204 2014 05 22 3 2 2 BM104 Model interface Topview BM104 has two analog input channels showed as chi and ch2 3 2 3 BM204 Model interface Topview BM204 has two analog input channels showed as c
6. entioned in A if you have to measure high voltages like 110V 220V using this equipment you need to have an extra x100 High Voltage Probe isolated and must be very careful BM 102 amp 104 amp 204 2014 05 22 2 Features Introduction BM series Oscillograph is more than a medium performance oscilloscope It can be easily extended to realize the functions of signal generator and logic analyzer by plugging in different sub modules BM104 Only BM series Oscillograph achieves the functions of traditional oscilloscope such as digital processing waveform drawing As long as you connect ROCKTECH DDS oscilloscope with the computer via USB cable it will form a complete oscilloscope test system after running the software Unlike the traditional DSO fully relying on hardware BM series Oscillograph_ leverages the self developed software to deal with the similar works Hardware Features e Signal generator function Optional module Only for BM104 e Logic analyzer function Optional module Only for BM104 e Real time sample rate Up to 50MHz BM102 Up to 200MHz BM104 BM 102 amp 104 amp 204 2014 05 22 e Recommended input 1 15MHz 1 30MHz e ESD protection 10KV e Overvoltage protection 10 times e Input Coupling DC AC e Power supply Directly with USB e Built in square wave signal output 1KHz Software features e Operating system Support Windows XP Windows 8 e Open Application Interface ena
7. h1 and ch2 BM204 has another Ext digital trigger input channel showed as Ext When you choose to trigger on this Ext channel a uprising ttl edge on Ext would trigger this device to show the wave form on ch1 and ch2 display area no data aquisition display area no data ie 88 fe eg i burst signal BM 102 amp 104 amp 204 2014 05 22 Built in Standard Square Wave Signal The small metal tip between the two BNC ports will output a square wave signal of 1KHz with an maximum of about 3 25V You can use it to test calibrate and set up the device This standard square wave may be automatically disabled when the signal generator module is plugged in It will be enabled when the signal generator is unplugged 1 1 Probe Connection Two standard x1 x10 switchable 60MHz probes included 3 3 1 Attenuation Switch Switch BM 102 amp 104 amp 204 2014 05 22 3 3 2 Probe Tuning Compensation Capacitor ompensation Trimmer Using a x10 attenuator user can adjust the compensate capacitor to improve the frequency response The easiest way to compensate the LFC part of the probe is to input a square wave with a relatively slow edge but importantly no overshoot The diagram I below show how the waveform should look when LFC is correct Too little LFC the HF gain will be lower than the LF gain II With too much and the High Frequency HF gain of the probe will be higher than its Low Frequency LF gain Ill
8. software BM102 10cm X 7 5cm X 2 5cm BM104 12cm X 7 5cm X 2 5cm Size 5 Signal Generator Module Optional Only For BM104 204 so rP Wn Pern Pe Core Ar rae aa pn rator cope Signal output from BNC port Entry Detail Waveform Type Square Sine Triangle PWM Max Output Adjustable via software output range 4V 4 V Output Frequency 1 20MHz sine wave continuously adjustable PWM output frequency limit 2OKHz Output Bandwidth 5MHz sine wave Output Offset Adjustable via software Mark Space Ratio PWM s Mark Space Ratio is adjustable via software stepping at 10 Size 10cm X 4cm X 2 5cm BM 102 amp 104 amp 204 2014 05 22 6 Logic Analyzer Module Optional Only For BM104 204 Entry Detail Channels 8 Input Level Compatible with 3 3V SV TTL CMOS Max Sampling Rate 100MHz Memory Depth 32K per channel Output Offset Adjustable via software Size 10cm X 4cm X 2 5cm BM 102 amp 104 amp 204 2014 05 22 ch6 ch4 ch2 Interface front view BM 102 amp 104 amp 204 2014 05 22 2 Typical Characteristics Noise range lt 50mV 1V vertical Noise range lt 4mV 50mV vertical 4V 1KHz sine wave diagram 1V vertical 0 5V 1KHz sine wave diagram 200mV vertical 200mV 1KHz sine wave diagram 50mV vertical BM 102 amp 104 amp 204 2014 05 22 4V 10M Hz sine wave diagram 1V 50ns 4V 20MHz sine wave diagram 1V 50ns
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