Table of Contents • v
1 INTRODUCTION .............................................................................................................................. 1
.................................................................................. 3
2.2.1. MRLDS-450 Product Overview................................................................................................ 4
2.2.2. MRLDS-450 Design Features .................................................................................................. 5
2.2.3. MRLDS-450 Component Overview .......................................................................................... 6
3.4.1. Preparations............................................................................................................................. 8
3.4.2. Power and Signal Wiring ......................................................................................................... 9
3.4.3. Relay Wiring............................................................................................................................. 9
3.4.4. Modbus RTU RS-485 Interface .............................................................................................. 10
3.4.5. Conclusion.............................................................................................................................. 13
.............................................................................................. 13
4.1.1. Applying Power and the Start-up Sequence ........................................................................... 13
4.1.2. Verifying Analog Signals........................................................................................................ 14
4.1.3. Verifying the Modbus Signal .................................................................................................. 14
4.1.4. Status Indication..................................................................................................................... 15
4.1.5. Switch Functions .................................................................................................................... 15
4.1.6. Reset System to Factory Default Settings............................................................................... 17
................................................................................................ 17
4.2.1. Enable Bluetooth® Connection.............................................................................................. 17
4.2.2. Checking Status ...................................................................................................................... 18
4.2.3. Instrument Configuration ....................................................................................................... 19
5.2.1. Introduction ............................................................................................................................ 27
5.2.2. General Calibration Procedure ............................................................................................. 27
5.2.3. Zero Adjustment ..................................................................................................................... 28
5.2.4. Span Adjustment ..................................................................................................................... 29