Emerson 3812 User Manual

Page of 138
Daniel 3812 Liquid Ultrasonic Flow Meter Installation Manual
Section 1: Introduction
3-9000-765 Rev D
March 2013
Acronyms, abbreviations and definitions
 3
1.3
Acronyms, abbreviations and definitions
Table 1-1  Acronyms, abbreviations and definitions
Acronym or abbreviation
Definition
°
degree (angle)
o
C
degrees celsius (temperature unit)
o
F
degrees fahrenheit (temperature unit)
ADC
analog-to-digital converter
AI
analog input
AMS® Device Manager
Asset Management Software - Device Manager
AO
analog output
ASCII MODBUS
A Modbus protocol message framing format in which ASCII characters are used to 
delineate the beginning and end of the frame. ASCII stands for American Standard 
Code for Information Interchange.
boolean
a type of data point that can only take on values of TRUE or FALSE (generally TRUE is 
represented by a value of 1, FALSE is represented by a value of 0)
bps
bits per second (baud rate)
cPoise
centipoise (viscosity unit)
CPU
central processing unit
CTS
Clear-to-Send; the RS-232C handshaking signal input to a transmitter indicating that 
it is okay to transmit data – i.e., the corresponding receiver is ready to receive data. 
Generally, the Request-to-Send (RTS) output from a receiver is input to the Clear-to-
Send (CTS) input of a transmitter.
DAC
Digital-to-Analog Converter
Daniel MeterLink
TM
Daniel ultrasonic meter interface software
DI
digital input
Direct Mount
Transmitter electronics enclosure and base electronics enclosure is directly 
mounted to meter body
DO
digital output
DHCP
Dynamic Host Configuration Protocol
dm
decimeter (10
-1
 meters, length unit)
ECC
Error Correction Code
EEPROM
Electrically-Erasable, Programmable Read-Only Memory
Flash
non-volatile, programmable read-only memory