Section 2: Product overview

Reference, Installation, and Operations Manual

June 2013

3-9000-743 Rev S

 

 

2.2.1Daniel Mark III Ultrasonic Gas Flow Meters assembly

The Mark III electronics assembly consists of an upper explosion-proof housing and a lower intrinsically-safe base unit assembly (see Figure 2-2).

Upper explosion-proof housing

a Daniel Mark III Ultrasonic Gas Flow Meter CPU (Central Processing Unit) Board

a Field Connection Board (for making electrical connections)

a Daniel Mark III Ultrasonic Gas Flow Meter I.S. (Intrinsically-Safe) Interface Board (permanently mounted on the CPU Board)

Option Boards (Series 100 Option Board or Series 100 Plus Option Board).

Figure 2-2 Daniel Ultrasonic Gas Flow Meter Mark III Electronics

Upper Explosion-Proof

Mark III Housing Assembly

I.S.

Interface

Board

Field

Termination

Board

 

 

CPU

 

 

 

Board

Acquisition

Option

Assembly

Board

Boards

 

 

Base Unit

Mark III

Electronics

12

Daniel Mark III Ultrasonic Gas Flow Meters assembly