thevalue leader ? oscilloscope / differential probes oscilloscope / differential probe selection selecting the correct oscilloscope probe ensures accuracy and can improve the per formance of your test instrument. tpi offers a wide range of high quality oscilloscope probes designed to meet the most demanding applications. the ip series monolithic probes have switchable attenuation and are available in 60 and 250mhz. these probes are ideal for technicians that need a basic oscilloscope probe. the slimline design p and sp series probes are available in fixed or switchable attenuation. these series of probes are per fect for the technician needing additional features such as replaceable cable and inter changeable probe tip. the compensation adjustment for these probes is located in the bnc to eliminate noise pickup.tpi also offers three models of high voltage differential probes all with high common mode rejection, wide bandwidth, and fast rise times. differential probes enable the viewing of signalsnot referenced to earth ground and provide better per formance than a matched pair of single ended oscilloscope probes when measuring these types of signals.several important factors must be taken into account when selecting the proper probe. ? the probe should have sufficient bandwidth and rise time for the test instrument and application. choose a probe with at least an equal bandwidth as the scope it will be used with. for best per formance a probe with twice the bandwidth as the scope should be selected. ? for oscilloscope probes, the input capacitance of your oscilloscope shouldbe within the compensation range specification of the probe. in addition, if your oscilloscope has readout function, select a probe with this capability . ? for differential probes, make sure the maximumdifferential voltage is adequate for your application and the common mode rejection specification meets the requirements of the tests being per formed. refer to the oscilloscope and differential probe specification tablesto select the correct probe for your application. distributed by: www .tpi-thevalueleader .com t o lear n about the entire line of tpi products visit: l ta w op 0705 cop yr ight ? 2005 t est products inter national, inc. t est products international, inc.headquarters: 9615 sw allen blvd. beaverton, or 97005 usa 503-520-9197 fax: 503-520-1225 email: info@tpi-thevalueleader .com t est products international, ltd.342 bronte st. south unit 9 milton, ontario l9t 5b7 canada 905-693-8558 fax: 905-693-0888 email: info@tpicanada.com t est products international uk ltd.longley house, east park crawley , w est sussex rh10 6ap englandt el: +44 (0)1293 561212 fax: +44 (0)1293813465contactus@tpieurope.com >> attenuation: ratio of the output signal to the input signal. attenuation should remain constant decreasing by 3db only as the frequency increases to the maximum bandwidth.>> bandwidth: the maximum -3db frequency that can be expected. >> cable length : length of the cable from the end of the probe to the end of the connector . it is important to use a probe with just enough cable length for your needs. long cables increase thecapacitance and propagation delay of the probe. >> compensation range : the range a probe can be compensated to match the input capacitance of the test equipment it is being used with.>> iec 1010 : probes with the iec 1010 categor y rating have been designed for safety . >> input impedance : the total resistance and capacitance as measured at the tip of the probe. this specification is used to define the loading effect of a probe. at frequencies under 1mhz the inputresistance of the probe will have the most influence. at higher frequencies the input capacitance will have the most influence. >> max input v oltage : the maximum voltage the probe can be used at. >> max differential v oltage: the maximum differential voltage that can be measured by a differential probe>> readout : probes with this capability are compatible with readout function oscilloscopes that automatically detect and display the attenuation factor of the probe.>> rise t ime : the time required for the leading edge of a pulse to rise from 10% to 90% of its final value.>> cmrr: common mode rejection ratio. a measure of a differential probes ability to reject any signals common to both test points in a differential measurement oscilloscope / dif oscilloscope / dif fer fer ential pr ential pr obe obe t t erminology erminology distributed by: t erminology use tpi probes with: bench t op, portable, analog,and oscilloscopes markets electroniccommunication commercial industrial applications logic signal andwaveform tests measure voice / data signals analyze power quality t est motor control circuits refer to pages 2-3 for specifications. tpi offers acomplete line of... co, combustibles &combustion (cea) refrigerant leak detectors digital manometers t emperature contact & ir instruments iaq: air flow /humidity handheld oscilloscopes digital multimeters & clamp-on meters accessories & kits
function adf25 adf25a adf25c bandwidth dc -25 mhz (-3db) dc -25 mhz (-3db) dc -70 mhz (-3db) accuracy 2% 2% 2% risetime 14ns 14ns 14ns cmrr (t ypical) 50hz -80db -86db -80db 20khz -60db -66db -60db 200khz -50db -56db -50db input impedance 4m/10pf each 4m/10pf each 10m/10pf each side to ground side to ground side to ground 8m/5pf 8m/5pf 20m/5pf between inputs between inputs between inputs input v oltage 140v dc inc.pk ac@ 170v dc inc.pk ac@ 700v dc inc.pk ac@ 20:1 or 100v rms 10:1 or 50v rms 100:1 or 400v rms maximum differential 1,400vdc inc. pk ac 1,400vdc inc. pk ac 7,000vdc inc. pk ac 200:1 or 1,000v rms 100:1 or 500v rms 1,000:1 or 5,000v rms output v oltage 7v minimum 2k v load 7v minimum 2k v load 7v minimum 50k v load offset (typical) < 5mv -10 c to + 40 c common mode 1,400v dc inc. pk ac 1,400v dc inc. pk ac 7,000v dc inc. pk ac or 1,000v rms or 1,000v rms or 2,500v rms noise (typical) 0.7mv rms 0.7mv rms 0.9mv rms output sour ce impedance 1 v @ 1khz. 8 v @1 mhz 1 v @ 1khz. 8 v @1 mhz 50 v operating t emperature -10 c to + 40 c (14f to 104f) power requirements 4 aa cell or 6v main adapters: dc/600ma or dc/800ma power supply not included input leads 45 cm double insulated 45 cm double insulated 60 cm double insulated pvc terminated in pvc terminated in rubber terminated 44 mm safety plugs 44 mm safety plugs in sprung hooks iec1010 ca t iii ca tiii ca tii specifica tions thevalue leader ? oscilloscope probe specifications f aq can tpi oscilloscope probes be used with t ektronix and hewlett packard scopes?y es, tpi oscilloscope probes can be used with most major brands of scopes.why is selecting a probe with the correct bandwidth important? choosing a probe with the correct bandwidth enables you to use your scope to its full potential. why do tpi oscilloscope probes have a compensation range and compensation adjustment? since the input of ever y oscilloscope is different our probes have a compensation adjustment so the capacitance of the probe canbe adjusted to match the capacitance of the scope input. the compensation range is the range of adjustment available. matching probe and scope capacitance is important to prevent waveform distortion. differential probe specifications what is the benefit of a probe with x1 and x10 switchableattenuation? passive x10 probes allow you to read a signal 10 times the amplitude of that viewed with a x1 probe. example: an eight-division graticule on 5v/div setting would display a 40 volt peak-to-peak signal using the x1 setting. y ou can view a 400 volt signal using the x10 setting.what is readout? readout is an activator pin that protrudes out of the bnc connector of an x10 or x100 probe that completes a cir cuit. there are contacts around the bnc connector on the front of the oscilloscope and theattenuation is automatically set. if your scope does not have contacts around the bnc connector , it does not need this feature.what probe should i buy? select a probe that is at least the same bandwidth as the oscilloscope you intend to use; however , for optimum per formance, select a probe with two times the bandwidth of your test instrument. specifica tions f aq what can you measure with a differential probe?with 20 mhz bandwidth, a switchable attenuation of 20:1, and 200:1 (part no. adf25), you can measure high-voltage cir cuits, motor speed controls, power supply design, and high-power electronic converters.what comes in the probe set? y ou will receive one differential probe, 2 probe tips, and 2 retractable sprung probes for accessing small wires formeasurements. why is common rejection ratio (cmmr) important for differential probes? cmmr is a measure of how well a differential probe will reject signals common to both test points, leaving thedesired signal to be displayed by the scope what does the maximum differential voltage specificationtell me? this specification provides you with the maximum voltage between the inputs the differential probe can be subjected to. this is important because the maximum voltage should never be exceeded. what is input impedance? impedance is a measure of how much a signal will be restricted. in general, it is best to have high resistance and low capacitance to ensure signal quality , accuracy of tests, and to ensure the probe doesn?t load down the cir cuit under test. differential probes oscilloscope probes model bandwidth attenuation cable input impedance max input v rise compensation readout iec1010 length r l dc + peak ac t ime range ip series, switchable IP060 60mhz x1 1.5m 1meg 200pf 150v 6ns 20 ~ 45 pf na ca t ii x10 10meg 22pf 300v ip250 250mhz x1 1.5m 1meg 200pf 150v 1.5ns 10 ~ 60pf na ca t ii x10 10meg 22pf 300v sp series, switchable sp 60b 60mhz x1 1.2m 1meg 47pf 150v 5.8ns 10 ~ 30pf na ca t ii x10 10meg 18pf 300v sp 100b 100mhz x1 1.2m 1meg 47pf 150v 3.5ns 10 ~ 35pf na ca t ii x10 10meg 16pf 300v sp150b 150mhz x1 1.2m 1meg 47pf 150v 2.3ns 10 ~ 35pf na ca t ii x10 10meg 15pf 300v sp 200b 200mhz x1 1.2m 1meg 47pf 150v 1.8ns 10 ~ 35pf na ca t ii x10 10meg 15pf 300v sp 250b 250mhz x1 1.2m 1meg 47pf 150v 1.4ns 10 ~ 35pf na ca t ii x10 10meg 14pf 300v sp 300b 300mhz x1 1.2m 1meg 47pf 150v 1.1ns 10 ~ 35pf na ca t ii x10 10meg 13pf 300v non-switchable 1p20b 15mhz x1 1.2m 1meg 47pf 150v 23ns na p100b 100mhz x10 1.2m 10meg 16pf 300v 3.5ns 10 ~ 35pf na ca t ii p100br 100mhz x10 1.2m 10meg 16pf 300v 3.5ns 10 ~ 35pf y es ca t ii p200b 200mhz x10 1.2m 10meg 15pf 300v 1.8ns 10 ~ 35pf na ca t ii p250 250mhz x100 1.2m 100meg 6.5pf 1,500v 1.4ns 10 ~ 35pf na ca t ii p250r 250mhz x100 1.2m 100meg 6.5pf 1,500v 1.4ns 10 ~ 35pf y es ca t ii p250b 250mhz x10 1.2m 10meg 14pf 300v 1.4ns 10 ~ 35pf na ca t ii p250br 250mhz x10 1.2m 10meg 14pf 300v 1.4ns 10 ~ 35pf y es ca t ii
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