100MHz DIFFERENTIAL PROBE USER`S MANUAL (SI
Contents
1. 100MHz DIFFERENTIAL PROBE USER S MANUAL SI 9101 This probe is in compliance with IEC 61010 031 CAT III Pollution Degree 2 1 Safety Terms and Symbols Terms appear in this manual AN WARNING Warning statements identify conditions or practice that could result in injury or loss life CAUTION Caution statements identify conditions or AN practice that could result in damage to this product or other property Symbols appear on the product 4 A Danger Protective Attention High Voltage Earth Terminal Refer to Manual 2 General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this probe or any products connected to it Observe Maximum Working Voltage To avoid any injury do not use the probe under the condition that the voltage between either input lead or earth is above 1000Vrms CAT Ill or above 1000 Vrms CAT III between the two leads This voltage rating applies to both 1 10 amp 1 100 settings Must be Grounded This probe is grounded with the shell of BNC connector and an auxiliary grounding terminal through the grounding conductor of the power cord of the measurement instrument Before making connections to the input leads of this probe ensure that the output BNC connector is attached to the BNC connector of the measurement instrument and the auxiliary grounding terminal is connected to a proper ground while the measurement instrument is properly grounded Us2. a Simply plug in the output BNC connector of this probe to the vertical input of a general purposed oscilloscope or other measurement instrument and connects the auxiliary grounding terminal to a proper ground The measurement instrument must have a ground referenced b Connect an appropriate power source to this probe and then turn it on c Select the proper attenuation ration when measuring signals below 70V switch the attenuation to 1 10 in order to get higher resolution and less noise Otherwise set the attenuation ratio to 1 100 when measuring signals up to 700V IAN WARNING To protect against electric shock use only the accessory supplied with this differential probe d Using the appropriate probe accessories connect the inputs to the circuits under measurement CAUTION This probe is to carry out differential AN measurement between two points on the circuit under measurement This probe is not for electrically insulating the circuit under measurement and the measuring instrument 5 Appearance The differential probe looks as follows b cH a i a Output Cable The output BNC connector and the auxiliary grounding terminal are connected to the oscilloscope The input leads of the differential probe are connected to b Input Leads sprung hooks that come with the probe cC Sprung Hooks The sprung hooks are connected safety to test points in circuits Under measurement 6 Power Leads We offer two type
3. e Fused Test Prods if Necessary lf this probe is intended to use for measurements in circuits of INSTALLATION CATEGORY III it should incorporate with fused test prods Do Not Operate Without Covers To avoid electric shock or fire hazard do not operate this probe with covers removed Do Not Operate in Wet Damp Conditions To avoid electric shock do not operate this probe in wet of damp conditions Do Not Operate in Explosive Atmosphere To avoid injury or fire hazard do not operate this probe in an explosive atmosphere Avoid Exposed circuitry To avoid injury remove jewelry such as rings watches and other metallic objects Do not touch exposed connections and components when power is present Use Proper Power Source To ensure this probe function well use four AA cells or 6VDC 200mA or regulated 9VDC 120mA mains adaptor or power lead Do not operate this probe from a power source that applies more than the voltage specified Do Not Operated With Suspected Failures If you suspect there is damage to this probe have it inspected by qualified service personnel 3 Description By enabling conventional oscilloscopes to display and measure in circuit waveforms that are referenced to high common mode voltages The differential probe extends the measurement capability of oscilloscopes in electronic power converters inverters motor speed controls switch mode power supplies and many applications 4 Installation
4. ine wave of proper amplitude will be displayed on the screen of the oscilloscope and this means the probe is working properly 11 Cleaning Use a soft cloth to clean the dirt Prevent damage to probe a Avoid immersing the probe b Avoid using abrasive cleaners c Avoid using chemicals contains benzene or similar solvents
5. ns Power leads Length of BNC Cable 90cm Length of BNC Lead 30cm Weight 500gms Dimension LxWxH 202mm x 83mm x 38mm Voltage limit is the lesser of the DC Peak AC and RMS values a The supplied voltage must be less than 12V and greater than 4 4V otherwise the probe could be damaged or can not be operated properly b Polarity is inside and outside For wrong polarity the probe is protected by built in circuit no danger or damage will occur c When the voltage of the cells become too low the power indicator on the panel will flicker 8 Derating Curve font gt The derating curve of the absolute maximum input voltage in common mode is shown as follows 100 10 10E 05 10E 06 10E 07 E G a S G S Frequency Hz 9 Overrange Indicator The overrange indicator lights red if the voltage of the input signal exceeds the linear operating range of the probe When this happens the signal on the probe output does not accurately represent the signal on the probe input 10 Inspection Procedure a Connect the BNC output connector to the vertical input of a general purposed oscilloscope b Install four AA cells or connect an appropriate mains adaptor or power lead to the correct line voltage c Set the oscilloscope input to DC coupling and 1V div Center the trace on the display d Connect the input leads of the probe to power lines e Set the range of the probe to 1 10 f Then a 60HZ 50Hz s
6. s power leads a Adaptor Lemo Lead For the oscilloscope whose power connector is Lemo connector b Adaptor Probus Lead For the oscilloscope whose power connector rE is Probus connector c USB Power Cord For the oscilloscope which offers USB connector H Differential Probe fcf Saai gt iE tal Probe aas jain a ff i j N u ditt i yo The panel of oscilloscope k Power Lead 7 Specifications Bandwidth DC to 100MHz 3dB Attenuation Ratio 1 10 100 Accuracy 2 Input Impedance 4Mohm 7pF each side to ground Input Voltage Category CAT Ill 70V DC Peak AC or 70Vrms 1 10 700V DC Peak AC or 700Vrms 1 100 Gommon Mode 700V DC Peak AC or 500Vrms 1 10 amp Differential Range Range 1 100 Absolute Max Voltage 1000V DC Peak AC or 1000Vrms 1 10 Differential or amp 1 100 Common Mode Output Voltage Swing into 7N 50kohm load Offset typical lt 5mV Noise typical 0 9mVrms Source Impedance 50ohm for using 1Mohm imput system typical oscilloscope CMRR typical 85dB 50Hz 55dB 1MHz dled Ofte Une SE 0 to 40 degree centigrade emperature este Olive 30 to 70 degree centigrade emperature Ambient Operating 25 to 85 RH Humidity Ambient Storage 25 to 85 RH Humidity Power Requirements 4 x AA cells or 6VDC 200mA mains adaptor Standard or regulated 9VDC 120mA mains adaptor Optio
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