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Nexus 1250
Electro Industries/GaugeTech Nexus 1250 Manuals
Manuals and User Guides for Electro Industries/GaugeTech Nexus 1250. We have
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Electro Industries/GaugeTech Nexus 1250 manuals available for free PDF download: Installation & Operation Manual, Quick Start
Electro Industries/GaugeTech Nexus 1250 Installation & Operation Manual (115 pages)
High Performance SCADA Monitor
Brand:
Electro Industries/GaugeTech
| Category:
Measuring Instruments
| Size: 4 MB
Table of Contents
Table of Contents
7
Chapter 1: Basic Tutorial on AC Power Measurement
13
Single Phase Power Systems
13
Figure 1.1: Single Phase Power Systems
13
Three-Phase Systems
14
Figure 1.2: Relationships between Apparent, Real and Reactive Power
14
Figure 1.3: Three Phase Power Systems
14
Poly Phase Systems
15
Consumption, Demand and Poor Power Factor
15
Figure 1.4: Poly Phase Power Systems
15
Waveform and Harmonics
16
Chapter 2: Nexus Overview
17
The Nexus System
17
Figure 2.1: the Nexus System
17
Measurements and Calculations
19
Demand Integrators
22
Nexus External I/O Modules (Optional)
23
Nexus Monitor Specifications
24
Nexus P40N External Display Specifications
25
Nexus P60N Touch Screen Display Specifications
25
Chapter 3: Hardware Installation
27
Mounting the Nexus Monitor
27
Figure 3.1: Nexus Monitor Mounting Diagram, Top View
27
Mounting the Nexus P40N External Display
29
Figure 3.3: Nexus P40N LED External Display Mounting Diagrams
29
Mounting the Nexus P60N Touch Screen External Display
30
Figure 3.6: Cutout for Nexus P60N Touch Screen Display
31
Figure 3.7: Nexus P60N Touch Screen Display Bezel Mounting Diagram
31
Mounting the Nexus External I/O Modules
32
Figure 3.8: Nexus I/O Modules Mounting Diagram, Overhead View
32
Figure 3.9: Nexus I/O Module Communication Ports
32
Chapter 4: Electrical Installation
35
Wiring the Monitored Inputs and Voltages
35
Fusing the Voltage Connections
35
Wiring the Monitored Inputs -Vref
35
Wiring the Monitored Inputs - Vaux
35
Wiring the Monitored Inputs - Currents
35
Isolating a CT Connection Reversal
36
Instrument Power Connections
36
Wiring Diagrams
37
Figure 4.1: 4-Wire Wye, 3-Element Direct Voltage with 4 Cts
38
Figure 4.2: 4-Wire Wye, 3-Element with 3 Pts and 4 Cts
39
Figure 4.3: 3-Wire, 2-Element Open Delta with 2 Pts and 3 Cts
40
Figure 4.5: 3-Wire, 2-Element Delta Direct Voltage with 3 Cts
42
Figure 4.6: 3-Phase, 4-Wire Wye, 2.5 Element with 2 Pts and 3 Cts
43
Figure 4.7: 4-Wire, 3-Element Grounded Delta with 4 Cts
44
Chapter 5 : Communication Wiring
45
Communication Overview
45
Figure 5.1: Communication Overview
45
Figure 5.2: RJ-11 Communication with Internal Modem Option
46
Figure 5.3: RJ-45 Communication with Internal Network Option
47
Figure 5.4: Communication Wiring
48
RS-232 Connection-Nexus Monitor to a Computer
49
RS-485 Wiring Fundamentals
49
Figure 5.5: Nexus Port 1-RS-232/RS-485 Communication
49
Figure 5.8: Incorrect "T" and "Star" Topologies
52
RS-485 Connection- Nexus Monitor to a Computer or PLC
53
RJ-45 Connection- Nexus with Internal Network Option to Multiple Pc's
53
RS-485 Connection- Nexus to an RS-485 Master (Unicom or Modem Manager)
54
Figure 5.9: Nexus Monitor Connected to an RS-485 Master
54
RS-485 Connectiion- Nexus Monitor to the Nexus P40N External Display
55
Figure 5.10: Nexus Monitor Connected to Nexus P40N External Display
55
RS-485 Connectiion- Nexus Monitor to the Nexus P60N External Display
56
Figure 5.11: Nexus Monitor Connected to Nexus P60N Touch Screen Display
56
Communication Ports on the Nexus I/O Modules
57
Figure 5.12: Communication Ports on the Nexus I/O Modules
57
RS-485 Connection-Nexus Monitor to Nexus I/O Modules
58
Figure 5.13: Nexus Monitor Connected to Nexus I/O Module
58
Steps to Determine Power Needed
59
I/O Modules' Factory Settings and VA Ratings
59
Linking Multiple Nexus Devices in Series
60
Figure 5.14: Linking Multiple Nexus Devices in Series
60
Networking Groups of Nexus Monitors
61
Figure 5.15: Networking Groups of Nexus Monitors
61
Remote Communication Overview
62
Figure 5.16: Remote Connections
62
Figure 5.17: Remote Connections with Internal Modem Option
63
Figure 5.18: Remote Connections with Internal Network Option
64
Remote Communication- RS-232
65
Remote Communication- RS-485
65
Figure 5.19: Standard Null Modem Configuration
65
Programming Modems for Remote Communication
66
Selected Modem Strings
67
High Speed Inputs Connection
67
Figure 5.20: High Speed Inputs Connection
67
IRIG-B Connections
68
Figure 5.21: IRIG-B Connection
68
Chapter 6: Using the Nexus External Displays
69
Overview
69
Nexus P40N External Display
69
Figure 6.1: Nexus P40N LED External Display
69
Dynamic Readings Mode
70
Navigational Map of Dynamic Readings Mode
72
Nexus Information Mode
73
Navigational Map of Nexus Information Mode
74
Display Features Mode
75
Navigational Map of Display Features Mode
76
Nexus P60N Touch Screen External Display
77
Figure 6.2: Nexus P60N Touch Screen External Display
77
Navigational Map for P60N Touch Screen External Display
82
Chapter 7 : Transformer Loss Compensation
83
Introduction
83
Nexus 1250 Transformer Loss Compensation
84
Loss Compensation Percentages
85
Application of Load Loss Compensation Percentages
88
Calculating Transformer Loss Compensation Percentages (Work Sheet)
89
Chapter 8: Nexus Time-Of-Use
91
Introduction
91
The Nexus TOU Calendar
91
TOU Prior Season and Month
92
Updating, Retrieving and Replacing TOU Calendars
92
Daylight Savings and Demand
92
Chapter 9: Nexus External I/O Modules
93
Hardware Overview
93
Figure 9.1: I/O Module Components
93
Installing Nexus External I/O Modules
94
Figure 9.2: Nexus Monitor Connected to I/O Module
94
Using Multiple I/O Modules
95
Figure 9.3: Multiple I/Os
95
Factory Settings and Reset Button
96
Analog Transducer Signal Output Modules
97
Analog Input Modules
99
Digital Dry Contact Relay Output (Form C) Module
101
Digital Solid State Pulse Output (KYZ) Module
103
Chapter 10: Nexus Monitor with Internal Modem Option
107
Hardware Overview
107
Figure 10.1: Nexus with Internal Modem Option
107
Hardware Connection
108
Chapter 11: Nexus Monitor with Internal Network Option
109
Hardware Overview
109
Figure 11.1: Nexus with Internal Network Option
109
Hardware Connection
111
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Electro Industries/GaugeTech Nexus 1250 Quick Start (4 pages)
Brand:
Electro Industries/GaugeTech
| Category:
Measuring Instruments
| Size: 1 MB
Table of Contents
Hardware Installation
1
Installing the Meter
1
Installing an External Display
1
Installing Optional Output Modules
2
Electrical Installation
2
Programming the Meter through Communicatorpqa
3
CT, PT Ratios and System Hookup
4
Communication Settings
4
Uploading a Device Profile and Naming the Meter
4
Electro Industries/GaugeTech Nexus 1250 Installation & Operation Manual (8 pages)
Power Meter and Power Quality Recorder
Brand:
Electro Industries/GaugeTech
| Category:
Measuring Instruments
| Size: 0 MB
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