Fluke A40B Скачать руководство пользователя страница 1

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July 2008 Rev. 1,

/09

All product names are trademarks of their respective companies.

A40B

Precision AC Current Shunt Set

Instruction Manual

Via Acquanera, 29

22100 Como

tel. 031.526.566 (r.a.) fax 031.507.984

[email protected]

www.calpower.it

Содержание A40B

Страница 1: ...Specifications are subject to change without notice All product names are trademarks of their respective companies A40B Precision AC Current Shunt Set Instruction Manual Via Acquanera 29 22100 Como t...

Страница 2: ...e center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no ris...

Страница 3: ...erating Environment 7 Storage and Transit Environments for models other than the 1 mA Current Shunt 7 Additional 1 mA Current Shunt Specifications 7 Preparing for Operation 8 Unpacking and Inspecting...

Страница 4: ...e Fluke Calibration Method 24 Recommended Tools and Equipment 25 System Calibration for AC DC Difference 25 TVC Sensitivity Characterization 26 UUT AC DC Difference Measurement Sequence and Calculatio...

Страница 5: ...14 5 Typical Loading Effect of an 8508A 2 V ACV Range 15 6 Estimating the Uncertainty of a 5790A Measurement 17 7 Sample Calculation of Measured Current 17 8 Single Junction Thermal Voltage Converter...

Страница 6: ...A40B Instruction Manual iv...

Страница 7: ...rcuit Using a Reference Shunt Resistor to Determine Source Current 20 6 Sources of Error in AC Measurements 23 7 The Fluke Calibration System 24 8 Calibrating Gain Difference 25 9 Characterizing Sensi...

Страница 8: ...A40B Instruction Manual vi...

Страница 9: ...nt Shunts or equipment to which it is connected A XW Warning statement identifies conditions or practices that could result in injury or death XW Warning To avoid electric shock personal injury or dea...

Страница 10: ...rent Shunts use only specified replacement parts Do not dispose of batteries in fire Do not heat deform solder dissemble or modify the batteries If batteries are removed from the shunt ensure they are...

Страница 11: ...t Shunts comprise the set They are as follows One boxed active shunt 1 mA Three boxed passive shunts 10 mA 20 mA 50 mA Five small size coaxial shunts 100 mA 200 mA 500 mA 1 A 2 A Three medium size coa...

Страница 12: ...4 24 200 mA 4 20 26 26 26 26 500 mA 1 6 21 27 27 27 28 1 A 0 8 21 27 28 28 31 2 A 0 4 21 27 30 30 48 5 A 0 16 21 31 32 40 71 10 A 0 08 26 37 60 61 92 20 A 0 04 26 43 52 70 113 50 A 0 016 32 55 80 81 1...

Страница 13: ...4 18 4 5 26 5 A 0 16 250 9 9 18 4 5 30 10 A 0 08 250 15 18 4 5 65 20 A 0 04 250 14 18 4 5 78 50 A 0 016 250 24 18 4 5 105 100 A 0 008 250 28 18 4 5 105 1 Stability specification combines long term cha...

Страница 14: ...d Current Shunt Nominal Current Maximum Current 5 Seconds 1 Maximum Sustained Current 2 Shunt Nominal Current Maximum Current 5 Seconds 1 Maximum Sustained Current 2 1 mA 3 mA 2 mA 3 1 A 3 9 A 1 3 A 1...

Страница 15: ...perature and Humidity to maintain performance 1 5 C to 45 C 15 to 80 RH Non operating Altitude 0 m to 12 000 m 1 Storage at extremes of temperature or humidity will cause a temporary change of shunt r...

Страница 16: ...ckaging Description Quantity A40B Case Transit storage case for the A40B Current Shunts 1 Packing List of Items Includes the serial number of the Current Shunts 1 Current Shunts one boxed active shunt...

Страница 17: ...environmental specifications described earlier in the General Specifications Storage outside these conditions may reduce the battery life of the 1 mA shunt or cause a temporary change in the resistanc...

Страница 18: ...damaged by misuse or mating with out of tolerance N type male connectors The center pins of male N type connectors are prone to moving particularly when assembled onto cables If a center pin on an N...

Страница 19: ...Precision AC Current Shunt Set Operating Information 11 1 1 2 5 6 3 4 2 7 3 Front Bottom Rear Top Active Shunt 1 mA Passive Shunt 100 mA fim005 eps Figure 2 Features and Connectors...

Страница 20: ...normal because of contact resistance If the connectors are not fully tightened they will get hot enough to burn skin and damage the shunt W Caution To avoid pin damage to N Type connectors on the Cur...

Страница 21: ...re designed to operate in a controlled environment such as calibration and measurement laboratories Temperature and humidity outside specified storage and transit environment may affect their performa...

Страница 22: ...tput Shunt Resistor Device Input Z feh004 eps Figure 3 Loading Effect of the Measurement Device Output Voltage Measurement Using a Fluke 5790A The typical input impedance of a 5790A input 1 or 2 is 10...

Страница 23: ...irectly Table 5 shows the loading effect of the 8508A on Current Shunts in the range of 1 mA to 1000 mA Table 5 Typical Loading Effect of an 8508A 2 V ACV Range DC 1 kHz 10 kHz 30 kHz 100 kHz Current...

Страница 24: ...so for the best accuracy allow the shunt temperature to stabilize for 100 minutes after charging completes 4 Remove power from the circuit under test and connect the input of the Current Shunt in ser...

Страница 25: ...to reliably confirm this level of performance Table 6 Estimating the Uncertainty of a 5790A Measurement Error Component Value ppm Distribution Divisor Value at k 1 Squared Value Standard deviation of...

Страница 26: ...current being measured To measure the same current level at a different frequency calculate a new value for m and enter the new value into the 8508A m store The z value remains the same Theory of Oper...

Страница 27: ...the other side of the struts and end PCB to the input connector The voltage across the resistor is carried by the strut to the dual PCB end B and C in Figure 4 and to the output connector The parallel...

Страница 28: ...of Calibration Methods Current Shunts can be used in AC DC difference or absolute AC or DC measurements This requires that both AC flatness and DC resistance performance are calibrated Both AC and DC...

Страница 29: ...mmon mode current Maximum input voltage is 0 45V Appropriate series resistor is required to increase input voltage capability Square law response offers poor amplitude linearity Nanovoltmeter or poten...

Страница 30: ...rity Not as sensitive to local environment as TVC Can do AC DC difference transfer 1 Common mode errors are the biggest source of error for mains powered devices DC Considerations Note that the impeda...

Страница 31: ...e extent The temperature coefficient of the Current Shunt causes a change in its resistance value Careful selection of equipment Allow all elements in the system to stabilize at normal operating tempe...

Страница 32: ...the UUT circuit Note the connection of the detector in the upper circuit In this configuration CGu is driven by the source current reducing the effect of common mode errors associated with the Refere...

Страница 33: ...del Minimum Use Specifications Multifunction Calibrator Fluke 5720A 0 to 10 volts DC to 100 kHz Transconductance Amplifier Clarke Hess 8100 100 A 100 kHz Precision AC Current Shunt Set A40B Calibrated...

Страница 34: ...ure 9 shows the characterization sequence where Vin is the setting on the 5720A Vin_1 nominal 500 ppm Vin_2 nominal 500 ppm Vin_3 nominal 500 ppm Vout_1 2 and 3 are the voltages reported by the measur...

Страница 35: ...de of VDC STD and VDC STD VACUUT average of VACUUT 1 and VACUUT 2 VACSTD average of VASTDT 1 and VACSTD 2 Apply AC signal Initial Delay VACUUT_1 VACSTD_1 Apply DC signal Delay Apply DC signal Delay Ap...

Страница 36: ...ltage average of forward and reverse DC current UUT Gain sensitivity of the UUT measurement system STD Gain sensitivity of the Reference Standard measurement system Current Source DC Noise From some t...

Страница 37: ...before replacing the batteries All other repair and or parts replacement should be performed at a Fluke Service Center See Contacting Fluke earlier in this manual to find the location nearest you Not...

Страница 38: ...To remove the binding post A a Remove the nut and washers from the back of the post B and b Pull the post out and away from the end plate c Catch and save the spacer C as the post is removed 2 To remo...

Страница 39: ...eat both solder removal steps until both the base and the center pin are free 5 Remove excess solder from the connector pad on PCB A 6 Mount the new connector to the Current shunt with the original sc...

Страница 40: ...both solder removal steps until both the base and the center pin are free 5 Remove excess solder from the connector pad on PCB B and C 6 Mount the new connector to the Current Shunt with the original...

Страница 41: ...Shunt 1 A Shunt 2 A Shunt 5 A Shunt 10 A Shunt 20 A Shunt 50 A Shunt 100 A Shunt 3275992 3276007 3276018 3276029 3276034 3276041 3276052 3276065 3276076 3276083 1 1 1 1 1 1 1 1 1 1 H2 End Plate Rear...

Страница 42: ...A40B Instruction Manual 34 Via Acquanera 29 22100 Como tel 031 526 566 r a fax 031 507 984 info calpower it www calpower it...

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