User Manuals: Valhalla Scientific 4300C Micro-Ohmmeter

Manuals and User Guides for Valhalla Scientific 4300C Micro-Ohmmeter. We have 2 Valhalla Scientific 4300C Micro-Ohmmeter manuals available for free PDF download: Operation Manual

Valhalla Scientific 4300C Operation Manual (111 pages)

Programmable Digital µ-Ohmmeter

Brand: Valhalla Scientific | Category: Measuring Instruments | Size: 3 MB

Document History
4
Safety Symbols
5
Table of Contents
8
Chapter 1 Inspection & Installation

14
- Introduction
  14
- Initial Inspection
  15
- Figure 1 - Rear Panel Configuration
  15
- Setting the Line Voltage
  16
- Fuse Selection
  16
- Rack Mounting
  17
- Figure 2 - Rack Mount Kit
  17
- Safety Precautions
  18
- Standard Measurement Mode Specifications
  20
- Temperature Compensator Mode Specifications
  20
Chapter 10 Addendums

20
Chapter 11 Parts List

20
Chapter 12 Schematics

20
- Table 1 - Ranges Parameters and Accuracies
  20
- Table 2 - Temperature Compensation Mode Accuracy
  20
Chapter 2 Specifications

20
- General Specifications
  21
- Environmental
  21
- Power Requirements
  21
- Physical
  21
Chapter 3 Getting Started

22
- Front Panel
  22
  - On/Off Switch
    22
  - Figure 3 - Front Panel Layout
    22
  - Display
    23
  - Range Selection and Test Current Key
    23
    
    Range Selection
    23
    
    Figure 4 - Display Windows
    23
    
    Test Current Key
    24
  - Function/Numerical Keys
    24
  - Figure 6 - Ohms Setting
    24
  - Figure 7 - Test Current
    24
  - Table 4 - Function/Numerical Keys Description
    25
  - TC Mode Key and Sensor Receptacle
    26
  - HLC Leds
    26
  - Figure 10 - HLC Leds
    26
  - Cable Disconnect Status Indicators
    27
  - Charging Inductor Mode
    27
  - Source and Sense Binding Post
    27
  - Figure 12 - Binding Post
    27
  - Figure 13 - Banana Plugs to Binding Post
    28
- Rear Panel
  29
  - Line Voltage Switch
    29
  - Figure 14 - 4300C Rear Panel
    29
  - Fuse Holder
    30
  - Power Connector
    30
  - HLC Relay Terminal
    30
  - Figure 15 - HI-LO Comparator Relay Pins
    30
  - RS-232 Connector
    31
  - Table 5 - RS-232 Pin out
    31
- Applying Power
  32
- Power -O N Default Settings
  32
- Table 6 - Power-Up Defaults
  32
- Figure 17 - Display
  32
- Connecting a Load to the 4300C
  33
- Figure 18 - Alligator
  33
- Figure 20 - Dual
  34
- Figure 19 – Surface
  34
- Taking Standard Measurements
  35
  - Setting the Range
    35
  - Test Current
    35
  - Figure 21 - Voltage Setting
    35
  - Figure 22 - Ohms Setting
    35
  - Figure 23 - Test Current
    35
  - Charging Inductor Mode
    36
  - Cable Disconnect Status Indicators
    36
Chapter 4 Measurement Modes and Functions

38
- Standard Measurement Mode
  38
- Tcm" - Temperature Compensated Measurement Mode
  38
- Hlc" - H I -L O Comparator Mode
  43
  - HLC Relay Terminal
    43
  - Figure 25 - HLC Leds
    43
  - Figure 26 - HLC Relay Pins
    43
  - Setting the Limits
    44
  - Table 9 - HLC Truth Table
    44
  - Table 10 - HLC Default Limits
    44
  - Hlc on
    45
- Update Function
  45
- Run /Hold Function
  47
  - Run/Hold
    47
  - Run/Pkhi
    47
  - Run/Pklo
    47
  - Configuring the Run/Hold Function
    47
  - Figure 27 - Display Function Window
    47
- Print /Log Function
  48
  - Print
    48
  - Log
    48
  - Log2
    48
  - Configuring the Print Button Function
    49
- View Function
  50
  - Using the View Function
    50
Chapter 5 Optional Features and Accessories

52
- Options
  52
  - BCD: Data Output
    52
  - Gpib
    52
  - Usb
    52
- Accessories
  52
- Test Leads
  53
Chapter 6 Remote Operations

56
- Ieee Interface
  56
- The
  56
  - Urpose of Ieee Standard 488
    56
- Definitions
  57
- Bus Restrictions
  58
- Detailed Descriptions of Bus Operations
  59
- Table 12 - ASCII Character Codes
  60
- Setting the Ieee Address
  62
- Remote and Local States
  63
  - Local State
    63
  - Remote State
    63
- Reading the Display Data
  63
- 4300C Command Set for Gpib
  65
  - Voltage Range
    65
  - Test Current Range
    66
  - Srq's and Serial Polls
    66
  - Output Data Terminator
    67
  - Test Current Control
    67
  - Display Hold
    67
  - Temperature Compensation
    67
  - Configuration Status Query
    68
  - Table 13 - IEEE
    69
- Interface
  70
- Connecting the 4300C Via Rs232 Interface
  70
- Input and Output Queue
  72
- Commands and Syntax
  72
  - RS232 Message Terminators
    72
  - Entering Commands
    72
  - Command Characters
    72
  - Combining Commands
    72
  - Synopsis of Commands
    72
- Details of Command Reference
  73
- Bcd Interface
  90
- Eneral
  90
- Bcd Pin Assignments
  90
  - Data
    90
  - Table 15 - BCD Measurement Data
    90
  - Ranges
    91
  - Overload - Pin 12
    91
  - Pin Assignment
    91
  - Table 16 - BCD Range Data
    91
  - Table 17 - BCD Pin Assignment Reference Table
    91
  - Bcd P in a Ssignments
    91
Chapter 7 Theory of Operations

92
- 4-Wire Configuration
  92
- Figure 38 - 4-Wire Configuration
  92
- General Description of Circuits
  93
- Figure 39 - 4300C Block Diagram
  93
- Detailed
  96
  - Descriptions
    96
  - Current Source
    96
    
    Reference
    96
    
    Error Amplifier
    96
    
    Figure 40 - Current Source Block Diagram
    96
    
    S Chematics
    96
    
    Output Stage
    97
    
    Range Switching
    97
    
    Protection Circuitry
    97
    
    Power Supply
    97
    
    Charging Inductor Mode
    97
  - Micro-Controller Board
    98
    
    Micro-Controller
    98
    
    Over-Voltage Protection
    98
    
    Tcm
    98
    
    Figure 41 - Μ-Controller Block Diagram
    98
    
    S Chematics
    98
    
    2.5V Reference
    99
    
    RS-232/Display Switch and RS 232 Driver/Receiver
    99
- Troubleshooting
  99
  - Localizing the Problem
    99
  - S Chematics
    99
  - Component Replacement
    100
Chapter 8 Routine Maintenance

102
- General
  102
- Required Test Equipment
  102
- Pre -Calibration Procedure
  102
- 4300C Calibration Procedure
  103
  - Sense Calibration
    103
  - Current Source Calibration
    104
    
    Reference Adjustment
    104
    
    10 Amp Adjustment
    105
    
    10Ma Adjustment
    105
  - TCM Calibration
    106
  - Figure 42 - Drawing № 4300C-700
    107
Chapter 9 Special Procedures

108
- General
  108
- Onnections and
  108
  - Time
    108
- Noisy Readings
  109
- Disconnecting the Cables
  110

Valhalla Scientific 4300C Operation Manual (84 pages)

Programmable Micro-Ohmmeter

Brand: Valhalla Scientific | Category: Measuring Instruments | Size: 2 MB

Table of Contents
5
General Information
9
Instrument Description
9
Instrument Identification
9
Safety Precautions
9
Unpacking and Installing
10
Inspection
10
Setting the Line Voltage
10
Fuse Selection
10
Rack Mounting
11
Specifications
12
Standard Measurement Mode Specifications
12
Temperature Compensator Mode Specifications
13
General Specifications
13
Environmental
13
Power Requirements
13
Physical
13
Getting Started
14
4-Wire Configuration
14
Front Panel
15
On/Off Switch
15
Display
15
Range Selection and Test Current Key
16
Function/Numerical Keys
16
TC Mode Key and Sensor Receptacle
18
HLC Leds
18
Cable Disconnect Status Indicators
18
Charging Inductor Mode
19
Source and Sense Binding Post
19
Rear Panel
20
Line Voltage Switch
20
Fuse Holder
20
Power Connector
21
HLC Relay Terminal
21
RS-232 Connector
21
Applying Power
22
Power-On Default Settings
22
Connecting a Load to the 4300C
23
Taking Standard Measurements
25
Setting the Range
25
Test Current
25
Charging Inductor Mode
26
Cable Disconnect Status Indicators
26
Measurement Modes and Functions
27
Standard Measurement Mode
27
TCM" - Temperature Compensated Measurement Mode
27
Omni Compensator
28
Tcm on
28
TCS - Temperature Compensator Setup
29
TCC - Temperature Compensator Calibration
30
HLC" - Hi-Lo Comparator Mode
31
HLC Relay Terminal
31
Setting the Limits
32
Hlc on
33
Update Function
33
Display Update Rate
33
Display Intensity
34
Setting the Display Update Rate and Intensity
34
Run/Hold Function
35
Run/Hold
35
Run/Pkhi
35
Run/Pklo
35
Configuring the Run/Hold Function
35
Print/Log Function
36
Print
36
Log
36
Log2
36
Configuring the Print Button Function
36
View Function
37
Using the View Function
37
Optional Features and Accessories
38
Options
38
Gpib
38
Usb
38
Cet
38
Accessories
39
Omni Compensator
39
Option RX-3: Rack Mount Adapter
39
Test Leads
39
Alligator Clip Type Leads
39
Needle Type Probes
40
Surface Probes
40
Other Lead Sets
40
Remote Operations
41
IEEE Interface
41
Definitions
41
Bus Restrictions
42
Detailed Descriptions of Bus Operations
43
Setting the IEEE Address
45
Remote and Local States
46
Local State
46
Remote State
46
Reading the Display Data
46
4300C Command Set for GPIB
47
Voltage Range
48
Test Current Range
48
Srq's and Serial Polls
48
Output Data Terminator
49
Test Current Control
49
Display Hold
49
Temperature Compensation
49
Configuration Status Query
50
RS-232 Interface
52
The RS232 Interface Capabilities
52
Notes for RS232 Installation
52
Connecting to a Computer
53
Checking Connections
53
Input and Output Queue
53
Commands and Syntax
53
RS232 Message Terminators
53
Entering Commands
53
Command Characters
53
Combining Commands
54
Synopsis of Commands
54
Details of Command Reference
54
Command Index
54
Routine Maintenance
69
General
69
Required Test Equipment
69
Pre-Calibration Procedure
69
4300C Calibration Procedure
70
Standard Calibration
70
Sense Calibration
70
Current Source Calibration
72
TCM Calibration
73
Special Procedures
75
General
75
Connections and Settling Time
75
Noisy Readings
76
Disconnecting the Cables
77
Addendums
79

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User Manuals: Valhalla Scientific 4300C Micro-Ohmmeter

Valhalla Scientific 4300C Operation Manual (111 pages)

Table of Contents

Chapter 1 Inspection & Installation

Chapter 10 Addendums

Chapter 11 Parts List

Chapter 12 Schematics

Chapter 2 Specifications

Chapter 3 Getting Started

Chapter 4 Measurement Modes and Functions

Chapter 5 Optional Features and Accessories

Chapter 6 Remote Operations

Chapter 7 Theory of Operations

Chapter 8 Routine Maintenance

Chapter 9 Special Procedures

Valhalla Scientific 4300C Operation Manual (84 pages)

Table of Contents

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