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Fluke 2638A/05 User Manual - Page 94

Graph the Measurements

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2638A Users Manual Table 4-4. Scan Statistics Statistic Description Maximum Minimum Average Standard Deviation Peak-to-Peak Rate of Change Maximum measurement. Minimum measurement. Average of all the measurements taken. A measure of the distribution of a set of data from its mean. The more spread apart the data, the higher the deviation. Difference between the Maximum and the Minimum. A measure of how much the readings change over time. To view the scan data: 1. Start a scan. See "Start a Scan" on page 4-12. 2. Push  to open the Scan Data menu. After the menu opens, push  to cycle the menu pages to view more channels. 3. To view channel statistics, push . Graph the Measurements The Scan function has a graph feature that lets the user display the measurement data in a graph. This feature is located in the Scan menu (push  then push ).The graph automatically scales to fit all the information on the display when opened. To refine the data, the graph can be manipulated with the front-panel arrow keys as shown in Figure 4-5. Notes The maximum number of channels that can be graphed at once is four. Selection of two or more channels with different input types (such as temperature and milliamps) can make the graph difficult to read because they do not share the same unit. To prevent this, only select channels of the same input type or view the channels one at a time. Selected Channels and Key Select or Deselect Graph Controls (Front-Panel Keys) J Zoom Out K Zoom In H Move Left (in History Mode) I Move Right (in History Mode) Time Stamps Additional Setup Options Figure 4-5. Graph Feature hcn056.eps 4-14

Section	Page
2638A Users Manual	2
Table of Contents	3
List of Tables	7
List of Figures	9
1 Product Overview and Specifications	11
Introduction	13
Product Overview	13
Front and Rear-Panel Overview	14
Safety Information	18
Screen Capture Feature	20
About this Manual	21
The Product Manual Set	21
How to Contact Fluke	22
Calibration and Repair Information	22
General Specifications	22
Measurement Specifications	24
DC Voltage	24
DC Voltage Input Characteristics	24
DC Voltage Accuracy	25
DC Voltage Additional Errors	25
AC Voltage	25
AC Voltage Input Characteristics	26
AC Voltage Accuracy	26
Additional Low Frequency Errors	26
DC Current	27
DC Current Input Characteristics	27
DC Current Accuracy	27
DC Current Additional Errors	27
AC Current	27
AC Current Input Characteristics	28
AC Current Accuracy	28
Additional Low Frequency Errors	28
Frequency	28
Frequency Accuracy	28
Resistance	29
Resistance Input Characteristics	29
Resistance Accuracy	29
Resistance Additional Errors	29
RTD	30
RTD Temperature Accuracy	30
RTD Measurement Characteristics	30
Thermistor	30
Thermistor Temperature Accuracy	31
Thermistor Measurement Characteristics	31
Thermocouple	31
Thermocouple Temperature Accuracy	31
Thermocouple Measurement Characteristics	33
Digital I/O	33
Totalizer	33
Trigger	33
Alarm Output	33
2638A-100 Universal Input Module	33
General	33
2 Initial Setup and Configuration	35
Introduction	37
Set the Regional Voltage	37
Connect to Mains Power	38
Set the Handle Position	39
Power On and Standby	40
Warm-Up the Product	41
Configure the Product	41
Input Module and Relay Card Installation	42
Set Up Security	45
3 Input and Channel Configuration	47
Introduction	49
Input Wiring	49
The Universal Input Module	49
Wiring Safety and Considerations	50
3-Wire and 4-Wire Sense Input Configuration	51
Input Types and Wiring Diagrams	52
Input Wiring Instructions	53
Channel Configuration	55
About Channel Numbers	55
Basic Channel Operations	57
Open the Channel Setup Menu	57
Set Channels to ON or OFF	58
Verify a Channel	59
Zero a Channel	59
Copy a Channel	60
Save or Load a Channel Configuration (Setup File)	61
Reset the Channel and Test Configuration	63
Analog Channel Configuration (Ch001, Ch101 to Ch322)	63
Current and Voltage Channels	64
Resistance Channels	65
Thermocouple Channels	66
Frequency Channels	67
Thermistor Channels	68
PRT Channels	69
Digital I/O (DIO) Channel Configuration (Ch401)	70
Totalizer Channel Configuration (Ch402)	71
Read Mode	71
Debounce	71
Math Channel Configuration (Ch501 to Ch520)	73
Mx+B, Alarms, and Channel Options	76
Mx+B Scaling	76
HI and LO Channel Alarms	77
Channel Delay	79
Rate of Change	79
NPLC	80
Input Impedance	80
Bandwidth	80
Display As	80
Open Detect	80
4 Scan/Monitor, Record, and Data	81
Introduction	83
Scan	83
About Scan Timing and Sampling	85
Configure a Scan	87
Trigger Type	88
Auto Recording	89
File Destination	89
Sample Rate	89
Data Security	90
Temperature Unit	91
Align Channels	91
Automatic Power Loss Scan Resume	92
Basic Scan Procedures	92
Start a Scan	92
View Scan Data and Statistics	93
Graph the Measurements	94
Monitor	95
Record	96
Record Measurement Data	96
Memory Consumption for Recorded Data	97
Open and View Measurement Data on a PC	97
How to Read the Setup CSV File	99
How to Read the Data CSV File	101
5 DMM Operation	103
Introduction	105
About the DMM Function	105
Input Type Selection and Range Adjustment	105
More Functions (PT385 or PT392)	106
Relative Measurements	106
Graph the Measurements	107
Measurement Statistics	108
6 Maintenance and Care	109
Introduction	111
Clean the Product	111
Replace the Fuse	111
Memory Reset and Factory Reset	112
User-Replaceable Parts and Accessories	113
7 Error Messages and Troubleshooting	115
Introduction	117
Error Messages	117