Autometers Systems HORIZON HT-400, Manual, Page: 2 / 20

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Introduction ...............................................................................................................
1. Unit Characteristics .............................................................................................
1.1 Unit Characteristics
1.2 RS485 Serial Modbus RTU
1.3 Pulse Output
2. Start-up Screens
2.1 Reading an 8 digit kWh register number
3. Keys and Displays .................................................................................................
3.1 Button Functions
3.2 Voltage and Current.......................................................................................
3.3 Frequency and Power Factor and Demand
3.4 Power
3.5 Energy Measurements...................................................................................
4. Set-up
4.1 Set-up Entry Methods
4.1.1 Menu Option Selection.........................................................................
4.1.2 Number Entry Procedure
4.2 Communication
4.2.1 Modbus RS485 Address
4.2.2 Baud Rate...............................................................................................
4.2.3 Parity
4.3 Pulse Output
4.3.1 Pulse Rate...............................................................................................
4.3.2 Pulse Duration
4.4 DIT Demand Interval Time
4.5 Backlit Set-up..................................................................................................
4.6 Supply System
4.7 Maximum Demand Reset
4.8 Change Password...........................................................................................
5. Specification
5.1 Measured Parameters
5.1.1 Voltage and Current
5.1.2 Power Factor and Frequency and Maximum Demand
5.1.3 Energy Measurements..........................................................................
5.2 Measured Inputs
5.3 Interfaces for External Monitoring
5.3.1 Pulse Output
5.3.2 RS485 Output for Modbus RTU
5.4 Accuracy...........................................................................................................
5.5 Reference Conditions of Interface Quantities
5.6 Environment
5.7 Mechanics
6. Dimensions
7. Maintenance ..........................................................................................................
8. Installation
8.1 Safety
9. Electrician
10. EMC Installation Requirements
11. Wiring Diagrams ..................................................................................................
11.1 Mains/Load Connections
11.2 Communication Connections......................................................................
12. The Horizon Energy Monitoring System with the new HT-400 Series .....
13. Metal Enclosures for the HT-400 Series ...........................................................
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