SI-9110 100MHz HIGH VOLTAGE DIFFERENTIAL PROBE USER'S
Contents
1. 38mm 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 The derating curve of the absolute maximum input voltage is shown as follows PS n E gt Y on 3 gt 10 1 0E 05 1 0E 06 1 0E 07 1 0E 08 Frequency Hz 9 Inspection Procedure a Connect the BNC output connector to the vertical input of a general purposed oscilloscope b To install four AA cells or connect an appropriate mains adaptor to this probe c Set the oscilloscope input coupling to DC and the 1V div Center the trace on the display d Connect the sprung hooks of the probe to power lines e Set the range of the probe to 1 1000 f Then a 50Hz 60Hz sine wave of proper amplitude will be displayed on the screen of the oscilloscope and this means the probe is working properly 10 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 Lemo and Probus are registered trademarks Date May 1 20092. SI 9110 100MHz HIGH VOLTAGE DIFFERENTIAL PROBE USER S MANUAL This probe is in compliance with IEC 61010 031 CAT III Pollution Degree 2 1 Safety Terms and Symbols Terms appear in this manual WARNING Warning statements identify conditions or practices that could result in injury or loss life CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Symbols appear on the product A Danger Protective Attention High Voltage Earth Terminal Refer to Manual 2 General Safety Summary To review the following safety precautions to avoid injury and prevent damage to this probe or any products that 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 III or above 1000 Vrms CAT III between the two leads This voltage rating applies to both of 1 100 and 1 1000 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 i
3. many applications 4 Installation a Simply plug in the BNC output connector to the vertical input of a general purpose 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 ratio when measuring signals below 140V switch the attenuation ratio to 1 100 in order to get higher resolution and less noise Otherwise set the attenuation to 1 1000 when measuring signals up to 1400V WARNING To protect against electric shock use only the accessory supplied with this differential probe d Using the appropriate probe accessories connect the input to the circuits under measurement CAUTION This probe is to carry out differential measurement between two A 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 A Output Lead The BNC output connector and an auxiliary grounding terminal are connected to the oscilloscope B Input Leads The input leads of the differential probe connect to sprung hooks that come with the probe C Sprung Hooks The sprung hooks are connected safely to test points in circuits under measurement 6 Power Leads We offer
4. nstrument is properly grounded Use Fused Test Prods if Necessary If this probe is intended to use for measurements in circuits of INSTALLATION CATEGORY Ill 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 or 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 mains adaptor or regulated 9VDC 120mA mains adaptor or power leads 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
5. two types 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 is Probus connector c USB Power Cord For the oscilloscope which offers USB connector Da lar UK gt Power Lead 7 Specifications Bandwidth Attenuation ratio Accuracy Rise Time Input Impedance Input Voltage Category Differential Range Common Mode Range ms 1 100 amp 1 1000 Absolute Max Voltage Differential or Common Mode Output Voltage Swing Offset typical Noise typical Source Impedance typical CMRR typical Ambient Operating Temperature Ambient Storage Temperature Ambient Operating Humidity Ambient Storage Humidity Power Requirements Standard Option Length of Input Leads Length of BNC Lead Weight Dimension LxWxH DC to 100MHZ 3dB 1 100 1000 2 3 5ns 4M Q 7pF each side to ground CAT M 140V DC AC Peak and 140Vrms 1 100 1400V DC AC Peak and 1000Vrms 1 1000 1400V DC AC Peak and 1000Vr 1400V DC AC Peak and 1000Vrms 1 100 amp 1 1000 1 4 V into 50kQ load lt 5mV 0 9mVrms 500 for using 1MQ input system oscilloscope 80dB 60Hz 50dB 1MHz 10 to 40 C 30 to 70 C Up to 85 RH Up to 85 RH 4xAA cells Power leads Mains adaptor 6VDC 200mA regulated 9VDC 120mA USB power cord 30cm 92 5cm 500gms 207mm x 83mm x
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