4 ST 3000 Release 300 and SFC Model STS103 User’s Manual 6/08
1.2 ST 3000 Smart Transmitters, Continued
Figure 3 Functional Block Diagram for Transmitter in Digital DE Mode of Operation.
A/D
DP or P P
Sensor
Temperature
Sensor
St atic Pressure
Sensor
Meter Body Electronics Housing
Pressure
Factory
Characterization
Data
Modula r Elec tronics Terminal Block
Digital signal
broadcasts PV
in floating point
for m at over
20 mA loop.
Digital I/O
PROM
Multiplexer
Microprocessor
Series and model
number data Honeywell’s line of ST 3000 Smart Transmitters includes these two
series designations:
Series 100
Series 900
Each series includes several models to meet various process pressure
measurement and interface requirements. Each transmitter comes with a
nameplate located on the top of the electronics housing that lists its given
“model number”. The model number format consists of a Key Number
with several Table selections as shown below.
Key Number
Meter Body
Flange Assembly
Options
Factory Identification
Table I Table II Table III Table IV
Basic Type
,
STD1 20 E1H 00000 S 1CBXXXX
Continued on next page