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Fluke 8846A FE 8845A & 8846A Users Manual - Page 58

Recalling Readings from Memory, Storing Meter Configuration Information, STORE READINGS, SAMPLES

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8845A/8846A Users Manual Note For internal storage of readings, the number of readings stored will not exceed 9999 readings regardless of the value set for number of samples. To store readings in external memory (8846A Only) 1. Press M. 2. Press the STORE READINGS soft key. 3. Press the USB soft key. 4. Press the # SAMPLES soft key. 5. To adjust the number of samples, press either to select a digit. With the chosen digit selected, press the soft key labeled -- to decrement the digit or ++ to increment the character. 6. With the number of samples set, press the ENTER soft key to return to the Store Readings menu. 7. Press the START soft key to begin storing measurements. The START soft key will change to STOP which can be pressed to stop the storage process. When the requested number of samples have been stored, the soft key label changes back to START. The MEM annunciator in the display also illuminates while readings are being stored. Note Each memory address will store up to 5000 readings. If the number of samples is set to a value greater than 5000, consecutive memory files will be used to store all the samples. If the readings fill the last file (999), reading storage will stop. Recalling Readings from Memory To recall readings from internal memory: 1. Press M. 2. Press the RECALL READING soft key. 3. Press the RECALL INT MEM soft key. The Meter displays the first stored reading from the internal file. Four soft keys provide the means to scroll through the readings stored in the file. The FIRST soft key displays the first reading in the file while the LAST soft key displays the last reading. Use the soft keys to move forward and backward through the file one reading at a time. To recall readings from external memory (8846A Only), the memory device must be removed from the 8846A and plugged into a PC where the comma delimited files can be read. Each file is labeled MEAS0XXX.CSV. The XXX is the file number starting at 001 and going up to 999. Each file is date and time stamped. Storing Meter Configuration Information Up to five meter configurations can be stored in the Meter's internal memory. The 8846A, with optional USB memory installed, can store an additional 99 configurations in the external memory. 3-18

Section	Page
8845A/8846A Digital Multimeter Users Manual	1
LIMITED WARRANTY AND LIMITATION OF LIABILIT	2
Table of Contents	3
List of Tables	7
List of Figures	9
1. Introduction and Specifications	11
Introduction	13
Manual Set	13
About this Manual	14
Safety Information	14
General Safety Summary	14
Symbols	16
Instrument Security Procedures	16
Volatile Memory	16
Non Volatile Memory	17
Media Memory (8846A Only)	17
Accessories	17
General Specifications	19
Power	19
Dimensions	19
Display	19
Environment	19
Safety	19
EMC	19
Triggering	19
Memory	20
Math Functions	20
Electrical	20
Remote Interfaces	20
Warranty	20
Electrical Specifications	20
DC Voltage Specifications	20
Input Characteristics	20
8846A Accuracy	21
8845A Accuracy	21
Additional Errors	21
AC Voltage Specifications	21
Input Characteristics	22
8846A Accuracy	22
8845A Accuracy	23
Additional Low Frequency Errors	23
Resistance	23
Input Characteristics	24
8846A Accuracy	24
8845A Accuracy	24
Additional Ohms Errors	24
DC Current	25
Input Characteristics	25
Accuracy (8846A)	25
Accuracy (8845A)	25
Additional Current Errors	25
AC Current	26
Input Characteristics	26
8846A Accuracy	26
8845A Accuracy	27
Additional Low Frequency Errors	27
Frequency	28
8846A Accuracy	28
8845A Accuracy	28
Gate Time vs. Resolution	28
Additional Low Frequency Errors	28
Capacitance (8846A Only)	29
Temperature (8846A only)	29
Additional Temperature Errors	29
Continuity	29
Diode Test	30
Measurement Rates	30
2. Preparing the Meter for Operation	31
Introduction	33
Unpacking and Inspecting the Meter	33
Contacting Fluke	33
Storing and Shipping the Meter	33
Power Considerations	33
Selecting the Line Voltage	34
Replacing the Fuses	34
Line-Power Fuse	34
Current-Input Fuses	35
Connecting to Line Power	37
Turning Power-On	38
Adjusting the Bail	38
Installing the Meter in an Equipment Rack	38
Cleaning the Meter	39
3. Front-Panel Operation	41
Introduction	43
Controls and Indicators	43
Front-Panel Feature Descriptions	43
Display Panel	44
Rear-Panel Connectors	46
Adjusting the Meter's Range	47
Navigating the Front-Panel Menu	47
Configuring the Meter for a Measurement	47
Setting the Display Resolution	47
Setting the AC Signal Filter	48
Setting Continuity Resistance Threshold and Diode Test Parameters	48
Setting the Continuity Threshold Resistance	48
Setting the Diode Test Voltage and Current	49
Setting the Default Temperature Scale (8846A Only)	49
Enabling Automatic Input Impedance	49
Using the Analyze Functions	49
Collecting Statistics on Measurements	50
Starting the Measurement Collection	50
Reading the Min, Max, Std. Dev. and Avg. Values	50
Stopping Measurement Collection	50
Testing Using Limits	51
Setting an Offset Value	52
Using MX+B	52
Using TrendPlot	53
Using the Histogram Function	54
Controlling Trigger Functions	55
Choosing a Trigger Source	55
Auto Triggering	55
External Triggering	55
Setting the Trigger Delay	56
Setting the Number of Samples	56
Understanding the Measurement Complete Signal	57
Accessing and Controlling Memory	57
Storing Readings in Memory	57
Recalling Readings from Memory	58
Storing Meter Configuration Information	58
Recalling a Meter Configuration	59
Managing Memory	60
Controlling System-Related Operations	61
Identifying Meter Errors	61
Querying the Firmware for Revision Level	61
Adjusting Display Brightness	61
Setting the Meter's Date and Time	61
Configuring the Remote Interface	62
Checking the Meter's Calibration Date	62
Resetting the Meter's Default Settings	62
4. Making Measurements	63
Introduction	65
Selecting Function Modifiers	65
Activating the Secondary Display	65
Measuring Voltage	66
Measuring DC Voltage	66
Measuring AC Voltage	67
Measuring Frequency and Period	68
Measuring Resistance	69
Making a Two-Wire Resistance Measurement	69
Making a Four-Wire Resistance Measurement	70
Measuring Current	71
Measuring DC Current	72
Measuring AC Current	73
Measuring Capacitance (8846A only)	74
Measuring RTD Temperature (8846A only)	75
Testing Continuity	76
Checking Diodes	76
Making a Triggered Measurement	77
Setting the Trigger Mode	78
Setting a Trigger Delay	78
Setting Number of Samples per Trigger	78
Connecting an External Trigger	79
Monitoring the Measurement-Complete Signal	79
Appendices	81
A. 2X4 Test Leads	83
B. Errors	85
C. RS-232 Port Connections	89

Match case Limit results 1 per page

8845A/8846A

Users Manual

3-18

Note

For internal storage of readings, the number of readings stored will not

exceed 9999 readings regardless of the value set for number of samples.

To store readings in external memory (8846A Only)

Press

Press the

STORE READINGS

soft key.

Press the

USB

soft key.

Press the

SAMPLES

soft key.

To adjust the number of samples, press either

<--

-->

to select a digit.

With the chosen digit selected, press the soft key labeled

to decrement the digit

to increment the character.

With the number of samples set, press the

ENTER

soft key to return to the Store

Readings menu.

Press the

START

soft key to begin storing measurements. The

START

soft key will

change to

STOP

which can be pressed to stop the storage process. When the

requested number of samples have been stored, the soft key label changes back to

START

. The MEM annunciator in the display also illuminates while readings are

being stored.

Note

Each memory address will store up to 5000 readings. If the number of

samples is set to a value greater than 5000, consecutive memory files will

be used to store all the samples. If the readings fill the last file (999),

reading storage will stop.

Recalling Readings from Memory

To recall readings from internal memory:

Press

Press the

RECALL

READING

soft key.

Press the

RECALL

INT

MEM

soft

key.

The Meter displays the first stored reading from the internal file. Four soft keys

provide the means to scroll through the readings stored in the file. The

FIRST

soft

key displays the first reading in the file while the

LAST

soft key displays the last

reading. Use the

<--

and

-->

soft keys to move forward and backward through

the file one reading at a time.

To recall readings from external memory (8846A Only), the memory device must be

removed from the 8846A and plugged into a PC where the comma delimited files can be

read. Each file is labeled MEAS0XXX.CSV. The XXX is the file number starting at 001

and going up to 999. Each file is date and time stamped.

Storing Meter Configuration Information

Up to five meter configurations can be stored in the Meter’s internal memory. The

8846A, with optional USB memory installed, can store an additional 99 configurations in

the external memory.