Fluke Calibration 55 Series Manuel utilisateur

5502A

CALIBRATOR

INPUT

SENSE

4-WIRE

55XX Series Multi-Product Calibrator

15-minute demo guide

Table of contents

Introduction.......................................................................................3

Section 1: Meter functions ............................................................5

Direct voltage

Alternating voltage

Resistance

Capacitance

Direct current

Alternating current

Section 2: Temperature functions............................................ 12

Temperature

Section 3: Power functions .........................................................15

Power

Power harmonics

Section 4: Overload protection ................................................. 20

Output Protection

Safety warning: The 55XX Series

calibrators are capable of producing

1000 V ac and dc at the NORMAL output

terminals. Do not touch any connectors

until you confirm that the calibrator

is set to 0 V and in STANDBY mode.

Always keep one hand at your side when

attaching cables to avoid electric shock

through the body.

Introduction

Output Window displays main output

information.

Separate STBY and OPR Keys control

output.

SCOPE and Trig Out Keys enable the

optional oscilloscope calibration func-

tions; EARTH, when on, ties analog

low to earth ground.

Control Window displays messages,

softkey menus, status, auxiliary

information.

SETUP activates setup softkey menus.

RESET returns the instrument to its

power-up state. NEW REF sets present

output as the reference for calculat-

ing errors. CE clears the current entry.

MEAS TC puts the 55XX calibrator in

thermocouple measurement mode.

TRIG OUT triggers the oscilloscope

calibration option.

“Soft” keys allow access to the menus

in the Control Window, letting you

select parameters. PREV MENU lets

you step backward through menus.

1 2 3 4 56

12 11 987

Arrow Keys select highlighted digits in

the Output Window. EDIT FIELD toggles

between two values if present in the

Output Window.

Edit Knob, which has a detent for each

digit increment, allows you to vary the

output.

MULT[X] and DIV [÷] Keys step up/

down in decade multiples of any output

setting.

Unit selection and unit modifiers.

The ENTER Key completes the entry,

moving it from the Control Window to

the Output Window.

Calculator-Style Keypad allows easy

value entry.

Output Block with recessed safety

terminals for voltage, ohms, RTDs,

auxiliary voltage, current and ohms

sensing; isothermal terminal for

thermocouples, and BNC connectors for

oscilloscope calibration and external

trigger outputs.

Presenting the 55XX Series Multi-Product Calibrators—

Each is eleven calibrators in one

Compared with more traditional calibrators designed to calibrate a

certain type of instrument, the Fluke Calibration 55XX Series rep-

resents a whole new class of multi-product calibrator, offering an

unprecedented range of dc and low-frequency electrical calibration

workload coverage. The basic 55XX Series calibrator can calibrate

digital and analog multimeters, thermometers (thermocouple and RTD),

handheld wattmeters, data loggers, current clamps, strip chart record-

ers, oscillographic recorders, panel meters, process calibrators, power

harmonics analyzers and many other similar measurement tools.

Try using a 55XX Series calibrator with actual units under

test (UUTs)

This demonstration guide lets you see for yourself in about 15 min-

utes how the advanced features of the 55XX Calibrators make it easy

to calibrate a wide variety of instruments. The following examples

use Fluke products. In most cases, similar products from other ven-

dors can be substituted. If you have any questions, contact your Fluke

Calibration representative.

You’ll discover that each 55XX Series’ front panel is arranged

to make it easy to use, even for the first time operator. Values are

entered on the calculator-style keypad; units are selected from the

keypad to the right of it. Operate, standby, scope and boost enable

keys are arranged across the top edge of the panel along with

five “softkeys,” whose meaning changes depending on the display

window above it.

Direct voltage

The 55XX Series calibrators can output

direct voltage from 0 to ± 1020 V.

1. Connect the V and COM terminals of

the dmm to the NORMAL outputs of

the calibrator.

2. Set the meter to direct voltage mode:

3. Select a 10 volt dc output from the

5500A by pressing:

10 V is indicated on the output window.

4. Turn the edit knob to vary the calibrator’s output. Notice how the

control window now displays error, showing the reference volt-

age and the difference between it and the current output.

5. Turn the edit knob to return the output to 10 V.

6. The cursor keys above the edit knob and on either side

of the key allow you to select which decades on the output

display to edit. Press the key until the cursor is under the

most significant 0 on 10.00000 V:

Section 1: Meter functions

What you’ll need

In addition to a 55XX Series

Multi-Product Calibrator,

you’ll need a Fluke 179

Digital Multimeter or

equivalent and a set of

compatible test leads.

Then turn the edit knob clockwise until the output display reads

33 V. Notice that the calibrator dropped into standby mode. This

safety precaution protects the operator from inadvertently slewing the

output to a potentially hazardous level.

7. Now press the key, located in the keypad to the left of the

edit knob. Notice that the error display disappeared from the con-

trol window. The indicated output is now set as the reference and

errors can be calculated with respect to the new reference value.

This simplifies certain kinds of troubleshooting or flatness tests.

8. Press the key. This resets the output to 0.0000 mV and puts

the calibrator in standby mode.

Alternating voltage

Alternating voltage is available from 1 mV to 1020 V over a frequency

range of 0.01 Hz to 2 MHz. Operation is the same as with volts dc.

Just enter the value and the units.

1. Put the dmm in ac voltage mode:

2. Connect the V and COM terminals of the dmm to the NORMAL

outputs of the 55XX Series. Then select a 10 volt 60 hertz

output by pressing:

Notice how the display in the control window has changed,

providing you with the opportunity to change the waveform

of the volts ac signal or to set a dc offset for duty cycle and

sensitivity checks.

POWER

0•

12 3

4 5 6

78 9

ENTER

mV Hz

FIELD

EDIT

OPREARTHTRIG

OUT

SCOPEMENU

SHIFT

RESET

SETUP

REF

NEW

MEAS

dBm sec

MULT

DIV

CAL

ZERO

STBY

5502A

CALIBRATOR

3. Press the under WAVE sine. Notice the menu changes to WAVE

tri for triangle wave. Also notice the output display has changed

from a conventional rms voltage reading to peak-to-peak.

4. Press the under WAVE tri and the display changes to WAVE

square. Note you are now offered a softkey choice for setting

duty cycle, making it easy to directly check the duty cycle display

on the dmm.

5. Press the key.

Resistance

Resistance values are available from 0 to 1100 MΩ.

The 55XX Series calibrators use a synthesis technique for simulat-

ing resistance values. So, rather than using discrete values, you may

select values in ohms much the same way you would select a voltage.

The 55XX Series’ unique resistance synthesis technique results in

wide dynamic range. Unlike synthesized resistance techniques used

in other calibrators, the 55XX Series calibrators may be used with

a wide range of UUTs, including handheld dmms; analog volt-ohm

meters, which typically output relatively high current in low resis-

tance ranges; and bench dmms, which typically output relatively high

voltage to make high resistance measurements.

1. Connect the test leads to the Ωand COM inputs of the dmm and

to the NORMAL terminals of the 55XX Series calibrator.

2. Put the dmm in ohms mode:

3. On the 55XX Series, select a 10 ohms output by pressing:

POWER

0•

12 3

4 5 6

78 9

ENTER

mV Hz

FIELD

EDIT

OPREARTHTRIG

OUT

SCOPEMENU

SHIFT

RESET

SETUP

REF

NEW

MEAS

dBm sec

MULT

DIV

CAL

ZERO

STBY

5502A

CALIBRATOR

4. Notice that the control window displays a range of lead com-

pensation choices. Simply press the under COMP off to cycle

through the choices—off, 2-wire and 4-wire. With compensa-

tion off, the 55XX Series does not compensate for external lead

resistances. In 2-wire mode, the calibrator compensates for lead

resistance at the terminals of the UUT. Four-wire mode permits

the 55XX Series to be used with UUTs capable of making 4-wire

measurements.

5. Notice to the left of the edit knob a group of eight function keys,

dedicated to miscellaneous functions. The bottom two, and

, permit you to step the output up or down in even decades of

the reference output displayed in the output window. Try it:

6. Now the output reads 1 kΩ. Edit the output with the edit knob

and keys to set the value to 1.42 kΩand press the key.

7. Try using the key by pressing it three times:

Now the output display indicates 1.42 Ω.

8. Press the key.

Capacitance

Capacitance is available from 220 pF to 110 mF.

The capacitance function operates in much the same way as the

resistance function; that is, simply enter the desired capacitance

POWER

0•

12 3

4 5 6

78 9

ENTER

mV Hz

FIELD

EDIT

OPREARTHTRIG

OUT

SCOPEMENU

SHIFT

RESET

SETUP

REF

NEW

MEAS

dBm sec

MULT

DIV

CAL

ZERO

STBY

5502A

CALIBRATOR

output. The design of the 55XX Series calibrators’ synthesized capaci-

tance circuit permits it to be used with meters that use both the dc

charge/discharge method currently used on handheld dmms, as well

as the ac technique used by RCL meters.

1. Connect the test leads to the Ωand COM inputs of the dmm and

to the NORMAL terminals of the 5500A Series calibrator.

2. Put the dmm in capacitance mode (on the Fluke 179, select

resistance mode then press the yellow button for capacitance).

3. On the numeric units keypad, notice there are a number of units

indicated in red. These units are entered by first pressing the

key. The 55XX Series keyboard will remain in a shifted state until

another key is pressed. This eliminates the need to hold down

the key while entering the shifted value.

4. Microfarads are entered as shifted units. Give it a try. Enter 5

microfarads by pressing :

5. The same lead resistance compensation choices available in

resistance mode are available in capacitance as well. You may

also edit the output in the same way. Press the key twice to

reduce the output in even decades to 50 nF:

6. Now, edit the output. Select the most significant digit on the

output display by pressing the key three times:

And edit the output by turning the edit knob. As with all the

other calibration modes, the calibrator calculates the error and

displays it in the control window.

7. Press the key.

Direct current

Direct current is available from 0 to ± 20.5 A.

Sourcing direct current is identical to sourcing direct voltage; how-

ever you have to change connections on the 55XX Series, and most

likely also on the dmm. Current is available from the AUX terminals

of the calibrator.

Be sure to connect a UUT to the calibrator, or the calibrator will go

over-compliance and trip out.

1. Connect the 400 A and COM terminals of the dmm to the AUX HI

and LO terminals of the 55XX Series.

2. Put the dmm in milliamps direct current mode by turning the

dmm knob to direct current millamps position: (On the Fluke

179, select milliamps then press the yellow button for direct

current).

3. Select 100 mA by pressing:

4. Then press the key once to change to 1 A:

5. Turn the edit knob to see the calibrator calculate the uncertainty.

6. Press the key.

POWER

0•

12 3

4 5 6

78 9

ENTER

mV Hz

FIELD

EDIT

OPREARTHTRIG

OUT

SCOPEMENU

SHIFT

RESET

SETUP

REF

NEW

MEAS

dBm sec

MULT

DIV

CAL

ZERO

STBY

5502A

CALIBRATOR

Ce manuel convient aux modèles suivants

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