Copyright 2010 Baker Hughes Company.
English–TERPS Instruction Manual | 19
6.6.3 Q - Set Measurement Speed
This command changes the rate of measuring by changing the number of output cycles counted
for each reading. By default, the transducer counts 16000 cycles per measurement and by
selecting one of six settings (0 to 5), the sample rate can be changed. The highest rate (5) causes
the most electrical noise.
Note:
Increasing the Q speed may, for the next two seconds, cause reading errors or ‘!020 No
Frequency’ error message to be returned.
Command:
<SPACE>Q,<Speed setting><CR>
Reply:
n/a
Query:
<SPACE>Q,?<CR>
Reply:
<Measurement Speed><CR>
Query:
<SPACE>*Q,?<CR>
Reply:
Measurement Speed = <Measurement Speed><CR>
6.6.4 U - Set Units
This command sets the units of pressure measurement.
Command:
<SPACE>U,<Unit number><CR>
Reply:
n/a
Result:
Changes the pressure units of the transmitted reading.
Query:
<SPACE>U,?<CR>
Reply:
<Unit number><CR>
Command:
<SPACE>*U<CR>
Table
9: Measure Speed Setting
Q Command
Setting
Resonant
Sensor Cycles
Counted
Measurement Interval
a
(ms)
a. This interval varies between minimum and maximum.
G Command
Fixed Setting
Minimum
Maximum
0
64000
1600
2560
4,0
1
32000
800
1280
2,0
2
b
b. Default setting for the accuracy stated in the specification.
16000
400
640
1,0
3
8000
200
320
0,50
4
4000
100
160
0,25
5
2000
50
80
0,25
where: <Unit number>
is a number between 0 and 24 used to select the required units.
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