Hioki DM7275 Series User Manual

207 pages

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Instruction Manual

DM7276

PRECISION DC VOLTMETER

DM7275

Dec. 2016 Edition 1

DM7275A961-00 16-12H

DM7275-01

DM7275-02

DM7275-03

DM7276-01

DM7276-02

DM7276-03

w ww . . co m

information@itm.com1.800.561.8187

Default Chapter4
- Table of Contents4
Introduction7
Verifying Package Contents8
Safety Information11
Operating Precautions13
1 Overview19
- Product Overview19
- Features19
- Temperature Compensation19
- Part Names and Functions20
- Screen Layout22
- Operating The Instrument23
- How To Use This Manual27
2 Preparing for Measurement28
- Preparation Process28
- Performing the Pre-Measurement Inspection29
- Connecting the Power Cord30
- Connecting the Measurement Cables (to the Instrument)31
- Connecting the Temperature Sensor32
- Turning the Instrument on and off33
- Setting The Time And Date35
3 Measurement36
- Connecting the Measurement Cables (Measurement Target)36
- Setting the Measurement Range40
- Setting the Measurement Speed41
- Starting Measurement42
- Measurement Error Displays51
- Values)51
4 Judging Measured Values55
- To Obtain Accurate Judgments Even When the Polarity of the Measurement Target (Battery, Etc.) Is Reversed56
- Comparator Measurement (Using a Single Judgment Standard)57
- BIN Measurement (Using Multiple Judgment Standards)61
5 Saving and Loading Measurement Conditions (Internal Memory)64
- Saving Measurement Conditions (Panel Save Function)65
- Conditions (Panel Load Function)65
  - Changing The Panel Name68
  - Deleting A Panel69
6 Useful Functionality70
- Obtaining Stable Measured Values70
  - X84; Setting the Integration Time70
  - X84; Reducing Measured Value Variability (Smoothing Function)72
- Auto-Hold Function73
- Contact Check74
- Switching The Input Resistance79
- Correcting Measured Values80
  - (Temperature Compensation Function)80
  - X84; Correcting Measured Values Using a Linear Expression (Scaling Function)85
- Statistical Calculations87
  - X84; Displaying, Clearing, and Printing Statistical Calculation Results88
7 System Settings90
- Key Lock (Disabling Instrument Operation)90
- Buzzer Settings91
- Adjusting The Screen Brightness92
- Changing The Screen Color92
- Adjusting the Touch Panel Position93
- Setting the Power Supply Frequency93
- Selecting Startup Load Settings and a Panel94
- Setting Output Formats95
- Resetting the Instrument (Reverting the Instrument to Its Factory Settings)96
  - X84; List of Default Settings97
8 Preparing to Use USB, RS-232C, GP-IB, and LAN Control99
- Overview of Interfaces and Associated Features99
- Preparing to Use an Interface (Connection and Settings)100
- Communications Settings111
9 Outputting Data113
- Interface Settings113
- Output Methods114
- Data Output Settings115
10 Using a USB Flash Drive117
- Overview117
- Connecting A Usb Flash Drive118
- Setting The Interface119
- Setting The Output Data Type119
- Outputting Data (USB Flash Drive)120
  - X84; Outputting Measurement Data or Screenshots120
  - X84; Outputting All Measurement Data121
- Outputting and Loading Measurement Conditions (USB Flash Drive)122
  - X84; Outputting Measurement Conditions122
- Files125
11 External Control (EXT I/O)126
- External Control Measurement Process126
- Switching between Current Sink (NPN) and Current Source (PNP)127
- Connections (Instrument and Control Device)128
- Configuring External Input and Output137
  - X84; EOM Signal Output Type138
- Input Test/Output Test139
- Timing Chart140
12 Printing144
- Printer Settings145
- Connecting the Printer to the Instrument147
- Configuring The Instrument147
- Printing148
- Output Format148
13 Specifications151
- General Specifications151
- Measurement Specifications152
  - X84; Basic Specifications152
  - X84; Accuracy Specifications155
- Functional Specifications157
- Interface Specifications163
14 Maintenance and Service166
- X84; Calibration and Repair166
- X84; Transporting the Instrument166
- Q&A (Frequently Asked Questions)167
  - X84; Frequently Asked Questions for External Control (EXT I/O)174
- Cleaning174
- Error Displays175
- Disposing Of The Instrument179
15 License Information180
Appendix181
Appx. 1 Block Diagram181
Appx. 2 Measuring The Enclosure182
- Lithium-Ion Batteries182
- X84; Internal Insulation Defects in Lithium-Ion Batteries182
- X84; Enclosure Potential Measurement183
  - Response Time184
  - Voltage Measurement185
- X84; Thermal Electromotive Force185
- X84; Effects of High-Voltage Measurement187
- X84; Effects of Burst Noise187
Appx. 4 Noise Countermeasures . Appx.8188
- X84; Effects of Induced Noise188
- X84; Effects of Conductive Noise190
Appx. 5 Self-Calibration191
- Targets192
Appx. 7 Rack Mounting194
- X84; Installation Instructions197
Appx. 8 Outline Drawings201
Appx. 9 Calibration202
Appx. 10 Adjustment203

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Hioki DM7275 Series Specifications

General

Type	Digital Multimeter
Temperature Measurement	Thermocouple (K type)
Continuity Check	Yes
Diode Test	Yes
Display	LCD
AC Current Range	600.00 μA to 10.000 A
Temperature Range	-200°C to 1372°C
Safety Standard	IEC 61010-1 CAT III 1000V / CAT IV 600V
Power Supply	AA batteries (x4)
Measurement Range	Depends on function
Resolution	Depends on range
Accuracy	Depends on function and range
Input Resistance	10MΩ
Display Digits	5.5 digits
Interface	USB
Power Supply AC	Not applicable