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Exercise: Connecting a Meter (cont.)

AUX

CURRENT

GUARD GROUND

WIDEBAND

Calibrator

10A

300mA

COM

DMM

EX SNS

: OFF

EX GRD

: OFF

OUTPUT

V A

Ω

SENSE

Ω

OUTPUT

V A

SENSE

AUX

CURRENT

GUARDGROUND

WIDEBAND

Calibrator

DMM

INPUT

EX SNS

: OFF

EX GRD

: OFF

Ω

Applying a dc Voltage

Apply 10V dc to the meter by pressing the
following sequence of keys:

Checking the Calibrator Uncertainty

Press

. The total uncertainty for the 10V you

are applying to the meter is displayed on the
Control Display (the large dot-matrix display on the
right side of the front panel). This number depends
on the setting of the calibration cycle and
specification confidence level in a setup menu.

Press

to clear the uncertainty display.

Summary of Contents for 5700A Series

Page 2: ......

Page 3: ...ercise Activating Error Mode 8 Checking the Meter s Higher and Lower Ranges 8 Exercise Applying an ac Voltage 9 Front Panel Features 10 Output Display Left Side 10 Control Display Right Side 10 Displa...

Page 4: ...rd the operator should not electrically contact the OUTPUT HI or SENSE HI binding posts During operation lethal voltages of up to 1100V ac or dc may be present on these terminals Whenever possible kee...

Page 5: ...d earth grounded receptacle before making any connections to the Calibrator terminals A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation...

Page 6: ...0V VOLTAGE SELECTION FUSE F1 T 125A 250V SB 200V S2 S3 S4 220V 230V 240V CAUTION FOR FIRE PROTECTION REPLACE ONLY WITH A 250V FUSE OF INDICATED RATING VOLTAGE SELECTION FUSE F1 T 125A 250V SB 100V S2...

Page 7: ...multiplier H E For example to change the present 10 mV dc to 10 mV ac 1 8 kHz press 1 8 K H E To change the output back to dc press 0 H E or E A Short Calibration Exercise If you are not familiar with...

Page 8: ...e The diagrams show the use of Fluke Model 5440 7002 Low Thermal Cables Other types of cable may be used for this exercise To connect either type of meter proceed as follows 1 Verify that the Calibrat...

Page 9: ...OFF Applying a dc Voltage Apply 10V dc to the meter by pressing the following sequence of keys 1 0 V E O Checking the Calibrator Uncertainty Press s The total uncertainty for the 10V you are applying...

Page 10: ...errors You can view component parts of the error by pressing o and S Checking the Meter s Higher and Lower Ranges To check the meter error at 100V dc first set the meter range if applicable to the low...

Page 11: ...for a reading on the meter of exactly 10V To test the meter s flatness press a The 0 1 Hz digit is highlighted Press four times Turn the knob to change the 1 kHz digit until the Calibrator is set to...

Page 12: ...er the IEEE 488 interface LCK Lit when the Calibrator output is phase locked to a signal at the rear panel PHASE LOCK connector SHF Lit when the Calibrator output has a programmed phase difference wit...

Page 13: ...ides the screen saver If the screen saver has activated you can restore the display by pressing C Pressing another key or turning the knob restores the display and performs the command sent by the key...

Page 14: ...ode The Calibrator automatically switches to standby mode when r is pressed the Calibrator is sourcing an ac or dc voltage below 22V and a voltage greater than 22V is selected the output function is c...

Page 15: ...nects the sense lines from the OUTPUT binding posts External sensing should be used in the following function under the stated conditions In the dc voltage function when the UUT draws enough current t...

Page 16: ...l guard For a UUT with ungrounded inputs the V GUARD should be connected to LO internally The EX GRD key is toggled off For a UUT with a grounded input the GUARD may be externally connected to the gro...

Page 17: ...ilities other than extended range i e higher compliance voltage For both voltage and current the amplifier is assumed to be a 5725A unless another model is designated in the Setup menus P Aborts the c...

Page 18: ...n practice for voltage and current outputs the knob and arrow keys are used to adjust output until the UUT reads correctly The error display shows the UUT deviation from the reference r During local o...

Page 19: ...he value only changes if the new value is within performance limits This key sets the Calibrator to standby if this change is made from a value less than 22V to one that is greater than or equal to 22...

Page 20: ...s or wideband function and if no entry is in progress the D key shows the equivalent dBm output on the Control Display For the ac voltage function dBm is calculated for a 600 load For ac outputs less...

Page 21: ...these functions the E key recalls the currently programmed reference value during error mode operation D V A Q H Output Function Keys These keys select the output function as follows D Decibels relati...

Page 22: ...necessary multipliers an output function key then E For example to obtain an output of 20 mV you would press the following sequence of keys 2 0 m V E The key is available for decimal places If the ou...

Page 23: ...system the GND binding post can be used for connecting other instruments to earth ground The chassis is normally connected to earth ground through the three conductor line cord instead of through the...

Page 24: ...compensation circuitry to the UUT terminals Refer to the connection diagrams for examples of usage OUTPUT Binding Posts Provide connection points for ac and dc current and voltage output as well as fo...

Page 25: ...PLIFIER Connector Provides the analog and control interface for the Fluke 5220A Transconductance Amplifier VARIABLE PHASE OUT BNC Connector Provides access to a variable phase nominal 2 5V rms sine wa...

Page 26: ...OUTPUT LO binding post The maximum allowable potential between the connector shell and chassis ground is 20V peak IEEE 488 CONNECTOR This is a standard interface connector for operating the Calibrato...

Page 27: ...d The current guard is used when the Calibrator is supplying low level ac current through a long cable to remove errors introduced by leakage through the cable capacitance Refer to the connection diag...

Page 28: ...osition the data in the memory is protected from being overwritten The switch is recessed in order to allow the metrologist to cover it with a calibration sticker to guarantee calibrator integrity F1...

Page 29: ...iaxial cable Wideband AC 3 feet 1m 50 coaxial cable with Type N male connector supplied with the option A 50 feedthrough terminator is also supplied for connecting to meters with impedance higher than...

Page 30: ...DEBAND Calibrator UUT HI HI LO LO HI OUTPUT V A SENSE V AUX CURRENT GUARDGROUND WIDEBAND UUT HI HI LO LO HI OUTPUT V A SENSE V AUX CURRENT GUARD GROUND WIDEBAND Calibrator C B A EX SNS ON EX SNS OFF E...

Page 31: ...possible Be careful not to exceed the capacitive load limit of 1000 pF up to 220V 600 pF 220 to 1100V 1000 pF with 5725A Amplifier TRIAXIAL CABLE UUT HI LO A HI LO GUARD INPUT SENSE 4 WIRE HI HI LO L...

Page 32: ...E HI HI LO LO HI OUTPUT V A SENSE V AUX CURRENT GUARD GROUND WIDEBAND Calibrator FRONT A UUT HI LO A HI LO GUARD INPUT SENSE 4 WIRE HI HI LO LO OUTPUT V A SENSE V I GUARD V GUARD Calibrator REAR TRIAX...

Page 33: ...COM UUT NC UUT HI LO A HI LO GUARD INPUT HI HI LO LO HI SENSE V AUX CURRENT GUARD GROUND WIDEBAND Calibrator Calibrator UUT SENSE SENSE SOURCE SOURCE Calibrator UUT B A EX SNS OFF EX SNS ON OUTPUT V...

Page 34: ...C C Calibrator UUT COMP COMP 10A 300mA COM V EX SNS OFF EX GRD OFF 2 WIRE COMP ON EX SNS ON NC OUTPUT V A HI HI LO LO HI OUTPUT V A SENSE V AUX CURRENT GUARD GROUND WIDEBAND Calibrator 10A 300mA COM U...

Page 35: ...on 03 For wideband meters with higher than 50 input impedance use the 50 feedthrough terminator at the meter connection end For all wideband applications take care to achieve a good 50 impedance match...

Page 36: ...34 Connecting to a UUT cont UUT HI LO A HI LO GUARD INPUT SENSE 4 WIRE HI LO 5725A 5725A Amplified Current Output...

Page 37: ...ng an arrow key or pressing a When you enter error mode the starting value is the reference from which errors are computed A new reference is established when you exit and reenter error mode The follo...

Page 38: ...times the reference value and establishes a new reference Z Sets the Calibrator to one tenth the reference value and establishes a new reference o Identifies the present output as a zero scale endpoi...

Page 39: ...r on the Calibrator rear panel 3 Turn on the Calibrator power 4 Choose the correct remote parameters using the softkey menus a Setup Menus Instmt Setup Remote Port Setup b Select Remote Port type GPIB...

Page 40: ...r 2 1 Flow Control Ctrl S Ctrl Q XON XOFF RTS or none Ctrl S Ctrl Q Parity Checking Odd even or none none Baud Rate 110 300 600 1200 2400 4800 9600 or 19200 9600 Time out Period 0 to 30 seconds 0 no t...

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