Copyright 2010 Baker Hughes Company.
12 | TERPS Instruction Manual–English
Note:
For electrical connections refer to the sales data sheet.
Figure
6: RS-232 Direct Connection
5.5 USB Connection
Standalone USB electrical connection:
Figure
7: USB Connection
The maximum USB cable length is 3
metres (9
ft 10
in). The transducer can be connected to a
PC, or to a mobile device.
Drivers are available for the following operating systems:
•
Android™
•
Linux®
•
Microsoft Windows®
5.6 Measuring Pressure
The frequency output from the sensor is counted for a fixed number of cycles by the
microprocessor. Measurement cycles are continuous, each cycle delivers new values of
frequency and temperature. See Section
15 for instructions on how to read a
pressure measurement from the transducer.
5.7 Factory Defaults
Transducers are shipped with the following factory defaults (unless alternatives have been
requested):
Table
6: Factory Defaults
Parameter
Value
Units
mbar, displayed as text
after reading.
PIN
a
000 (not set)
Address
Direct mode
Long error messages
Present
Communications Set-up
9600, 8, N, 1
Update rate
1 reading/second
Filter
Disabled
User message
None
Measurement speed
300
ms to 560
ms
Mode
Direct
Pressure
11 - 28 V DC
0 V
RS-232 Tx
RS-232 Rx
Pressure
Micro-USB socket
