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Master Meter System
Endress+Hauser
3
Product description
The main functions of the HMI of the MM System are to enable operation of the system,
visualization of the test operation and also data management and troubleshooting. The
HMI was designed to provide user-friendly, step-by-step procedures for safety operation.
3.1
System overview
The following is an overview of the entire MM measuring system. The relevant devices in
the overall system architecture are described in detail.
Ex Zone 1
5 4
8
Duty Meter
11
1
System overview
1
Ex d housing including MM flow computer
2
Tablet PC compliant with Ex Zone 2
3
Web browser via Ethernet (optional)
4
Modbus signal
5
Pulse signal
6
4-20 mA (pressure)
7
4-20 mA (temperature)
8
Shut-off valve
9
Pressure transmitter
10
Temperature transmitter
11
Duty Meter
12
Master Meter
3.2
System design
The HMI is installed and loaded either on a robust tablet or on an integrated panel PC. The
touch-sensitive HMI manages all integrated field devices and flow computer.
The MM flow computer is the heart of the system and is used to record various process
data of the MM and DUT. Various signal types are transmitted between the flow computer
and field instruments via an Ethernet switch with eight ports and a wireless router.
1
5 4
8
8
Product description
Ex Zone 2
2
3
6
7
9
10
Master Meter
12
8
A0048608
11
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Table of Contents
Troubleshooting
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