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Electro Industries Nexus 1262 manual available for free PDF download: Installation & Operation Manual
Electro Industries Nexus 1262 Installation & Operation Manual (212 pages)
Billing Meters
Brand:
Electro Industries
| Category:
Measuring Instruments
| Size: 4.46 MB
Table of Contents
Table of Contents
9
General Settings
17
Quick Start Guide for Nexus® Type S Meters
17
Chapter 1: Quick Start up for Nexus® S Type Meters
19
1: Meters with Auxiliary Power
19
2: Meters Without Auxiliary Power
19
Figure 1.1: the Nexus® 1272 Meter
19
Figure 1.2: the Nexus® 1272 Meter Rear View Diagram
19
PC to Nexus® Meter Serial Communications
20
1: Optical Port
20
2: Serial Communications
20
1: Install Communicator EXT Software & Connect
20
Configure Programmable Settings
21
Device Profile Screens
21
1: Save the New Program
24
Field Installation
24
The Nexus® 1262/1272 Multiparameter Power Meter
25
Figure 2.1: the Nexus® 1272 Meter
25
Chapter 2: Nexus® 1262/1272 Meter Overview
25
Figure 2.2: How the Nexus 1272 Meter Processes Inputs
26
Figure 2.3: How the Nexus 1262 Meter Processes Inputs
27
1: Advanced Revenue Billing Capability
28
Advanced Measurement Functionality
28
2: Advanced Communications and I/O Capabilities
29
1: Optional P40N, P41N and P43N LED Remote Displays
30
2: Optional P60N Touch Screen Remote Display
30
3: EN50160 Flicker
30
4: Display Screens
30
5: Additional Switches
30
6: Nexus® External Output Modules
30
Nexus® 1262/1272 Meter Forms
31
Nexus® 1262/1272 Meter Specifications Overview
32
DNP V3.00 Level 2
34
Nexus® 1262/1272 Meter Logging Specifications
34
Chapter 3 : Operating Instructions for the Nexus® 1262/1272 Meter
35
Nameplate Information
35
Figure 3.1: Nexus® 1272 Meter Nameplate
35
Basic Operations
37
Figure 3.2: Nexus 1262/1272 Meter Switches and Indicators
37
Display Information
38
Programmable Display Overview
40
Programmable Display Setup
41
Programmable Display Screens
43
Chapter 4 : Testing for the Nexus® 1262/1272 Meter
45
Testing Tools
45
1: Test Pulse LED
45
2: LCD Display
46
Test Mode
46
1: Entering Test Mode
46
2: Using Test Mode
48
3: Test Mode Preset Accumulators
49
4: Exiting Test Mode
50
Chapter 5 : Serial Communication Wiring
53
Communication Overview
53
Figure 5.1: Communication Overview
53
Figure 5.2: Nexus® 1272 Meter Optical Port
54
RS485 Serial Communication
55
1: RS485 Wiring Fundamentals (Port 1 & Port 4)
55
Figure 5.4: 1262/1272 2-Wire RS485 Port Detail
56
Figure 5.5: RS485 Daisy Chain Connection
57
Figure 5.6: Incorrect "T" and "Star" Topologies
58
2: Using the Unicom 2500
59
Figure 5.7: Unicom 2500 with Connections
59
Figure 5.8:Detail of "Jumpers
59
3: RS485 Connection-Meter to a Computer or PLC
60
5: RJ-45 Connection- Meter with INP200 (10/100Baset) Option
60
6: Modem/Ethernet Connection-Meter with INP202 (Combo Card) Option
60
7: RS485 Connection-Meter to the P40N, P41N or P43N LED Display
61
Figure 5.9: Meter Connected to P40N, P41N or P43N LED External Display
61
8: RS485 Connection- Meter to the P60N Touch Screen External Display
62
Figure 5.10: P60N Touch Screen Display Port
62
9: Communication Ports on the Output Modules
63
10: RS485 Connection-Meter to Output Modules
64
11: Steps to Determine Power Needed
65
12: Output Modules' Factory Settings and VA Ratings
65
13: Remote Communication over Telephone Lines Using the RS485 Port
66
Figure 5.13: Remote Connections-RS485
66
14: Programming Modems for Remote Communication
68
15: Selected Modem Strings
69
16: High Speed Inputs Connection
69
Figure 5.14: High Speed Inputs Connection
69
17: IRIG-B Connections
70
Figure 5.15: IRIG-B Connection
70
18: Time Synchronization Alternatives
71
1: Hardware Overview
72
2: Hardware Connection
72
3: Dial-In Function
72
4: Dial-Out Function
73
INP200 Onboard Ethernet
74
1: Hardware Overview
74
2: Hardware Connection
74
INP202 Ethernet/Modem Combination
75
1: Hardware Overview
75
2: Hardware Connection
76
Chapter 6: Hardware Installation
77
Figure 6.3: Nexus 1262/1272 Meter Mounted in A-Base Bottom
79
1: Cable Color Key
80
Internal Battery Installation and Maintenance
81
1: Battery Holder Detail
82
2: Battery Safety and Disposal
82
Figure 6.6: Battery Holder Detail
82
Mounting the Optional Nexus® P60N Touch Screen External Display
84
Figure 6.8: Nexus P60N Touch Screen Display Mounting Diagram
84
Daisy Chain Meters with the P60N
85
Figure 6.10: Cutout for Nexus P60N Touch Screen Display
85
Figure 6.11: Daisy Chain Meters with the P60N Touch Screen Display
85
Mounting the Nexus® External Output Modules
86
Figure 6.12: Nexus® Output Modules Mounting Diagram, Overhead View
86
Figure 6.13: Nexus® Output Module Communication Ports
86
Chapter 7 : Nexus® Meter's Time of Use Feature
89
Introduction
89
The Nexus® Meter's TOU Calendar
89
TOU Frozen & Active Registers
90
Updating, Retrieving and Replacing TOU Calendars
90
Daylight Savings and Demand
90
Chapter 8: Transformer Loss Compensation
91
Introduction
91
Nexus® 1262/1272 Meter's Transformer Loss Compensation
93
1: Loss Compensation in Three Element Installations
94
1: Three Element Loss Compensation Worksheet
95
Chapter 9 : Using the Nexus® External Displays
99
Overview
99
Figure 9.1: Nexus P40N LED External Display
99
Dynamic Readings Mode
100
Navigational Map of Dynamic Readings Mode
102
Nexus® Information Mode
103
Navigational Map of Nexus® Information Mode
103
Display Features Mode
105
Navigational Map of Display Features Mode
106
Figure 9.5: Nexus® P60N Touch Screen External Display
107
Navigational Map for P60N Touch Screen External Display
115
Optional P40N, P41N, P43N LED External Display Specifications
116
Optional P60N Touch Screen Remote Display Specifications
116
Hardware Overview
117
Figure 10.1: Output Module Components
117
Chapter 10: Nexus® External Output Modules
117
1: Port Overview
118
Installing Nexus® External Output Modules
119
Figure 10.2: Nexus Meter Connected to Output Module
119
1: Power Source for Output Modules
120
Figure 10.4: Power Flow from PSIO to Output Module
120
Figure 10.5: Labels for the PSIO Power Source
120
Using Multiple Output Modules
121
1: Steps for Attaching Multiple Output Modules
121
Figure 10.6: Multiple Output Modules
121
Factory Settings and Reset Button
122
Analog Transducer Signal Output Modules
123
1: Overview
123
2: Normal Mode
124
Digital Dry Contact Relay Output (Form C) Module
125
1: Overview
125
2: Communication
126
3: Normal Mode
126
Digital Solid State Pulse Output (KYZ) Module
127
1: Overview
127
2: Communication
128
3: Normal Mode
128
Specifications
129
Chapter 11 : Electrical Installation for Nexus® 1262/1272 Meter(Type S)
151
Chapter 12: Nexus® 1262/1272 Switchboard Meter (Type Z)
151
Introduction
151
Labels
152
Specifications and Dimensions
153
Installation
156
Chapter 13: Nexus® Meter Calculations
169
Measurements and Calculations
169
Demand Integrators
174
Chapter 14 : EN50160 Flicker
177
Overview
177
Theory of Operation
177
Setup
179
Software - User Interface
180
Logging
183
Polling
183
Log Viewer
183
Performance Notes
184
Appendix A Transformer Loss Compensation Excel Spreadsheet with Examples
185
A.1: Calculating Values
185
A.2: Excel Spreadsheet with Example Numbers
185
Appendix B Blade Configuration for Forms 9S, 36S and 45S
191
B.1: 1262/1272 Forms
191
B.2: Blade Configuration Drawings
191
Appendix C: Three-Phase Power Measurement
193
C.1.1: Wye Connection
193
Table C.1: Common Phase Voltages on Wye Services
194
C.1.2: Delta Connection
195
Figure C.3: Three-Phase Delta Winding Relationship
195
C.1.3: Blondell's Theorem and Three-Phase Measurement
196
C.2: Power, Energy and Demand
198
Figure C.7: Power Use over Time
198
Table C.2: Power and Energy Relationship over Time
199
C.3: Reactive Energy and Power Factor
200
Figure C.9: Voltage and Complex Current
201
Figure C.10: Nondistorted Current Waveform
202
Figure C.11: Distorted Current Wave
203
Figure C.12: Waveforms of the Harmonics
203
C.4: Harmonic Distortion
205
C.5: Power Quality
205
Table C.3: Typical Power Quality Problems and Sources
205
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