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Product Data Document
1660DS-7c
July 17, 2007 - Page 4
Bristol
®
ControlWave
®
XFC
Remote Automation Solutions
Website: www.EmersonProcess.com/Remote
reading, for a change in static pressure of 1000
psi
Long Term Stability at Constant Conditions:
±0.1% URL/Year typical
Mounting position effect: ±2 in H2O maximum,
which can be calibrated out.
Ripple and noise: Per ISA 50.1 Section 4.6
Sensor Assembly Wetted Parts Material
Selection “D” allows the user to choose the material
used in the ange bolts, anges and diaphragm in
the sensor assembly. Materials are 316 stainless
steel and Hastelloy C.
Processor/Main Electronics
The electronics assembly consists of two circuit
boards with the CPU, LCD display, communication,
dc/dc power system controller functions and the
I/O functions all installed within the explosion-proof
housing.
CPU/System Controller specications are listed
here. For information and specications on the I/O,
please refer to the description for Selection “K,” “I/O
CONFIGURATION,” on page 6.
Specications for CPU/System
Controller
32-bit ARM9TDMI RISC Core Processor
running at 14 MHz
Serial Real Time Clock Accurate to 5 seconds/
month at 25 ºC
512 KB Flash Boot/Downloader
2 MB SRAM
8 MB Simultaneous Read/write Flash
Backup Battery for Real Time Clock and SRAM:
300 mA-Hour Lithium Coin Cell, 4000 Hour
Backup Time
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3 Serial Communication Ports (see below for
further information)
6.0 to 30.0 Vdc Power Supply with Power Fail
Sequencer
Two-line LCD with nine, seven-segment
numeric characters plus polarity on line 1 and
six, fourteen-segment alphanumeric characters
on line 2.
Information on the Serial Ports
COM1:
RS 232
Three wire interface
300 to 115.2K baud rates
Physical Interface is on the main termination
assembly.
COM2:
RS 232
300 to 115.2K baud rates
Physical Interface is on the main termination
assembly.
Supports RTS, CTS, DTR, and DCD modem
control signals
RS 232 transceivers are enabled by the port’s
DTR.
DCD remains active in power-down mode.
COM3:
RS 485, 2-wire
300 to 115.2K baud rates
Physical Interface is on the main termination
assembly.
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