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Pa ram e ter De scrip tion Fac tory De fault
E_AREA Ef fec tive Area of flow me ter de vice. The ef fec tive area is re quired for
flow cal cu la tions and is en tered to be the same as shown on the Thermo
Brandt flow me ter la bel. The avail able range is:
1.0000 for English.
0.0929 for Metric.
Eng lish Unit Ver sion: 0.0000 to 500.0000 square feet.
Met ric Unit Ver sion: 0.0000 to 100.0000 square meters.
þNOTE: Some flow me ter de vices use ‘K fac tors’ in stead of ef fec tive ar eas to
de fine mass flow re la tion ships. Ef fec tive ar eas can be cal cu lated from given
K fac tors. See For mulas, Sec tion 10.
þNOTE: Thermo Brandt flow me ter de vices are spec i fied in square feet. To
con vert to square me ters, mul ti ply the square feet value by 0.0929.
STDDEN Standard Density. The standard density is required for mass flow
calculations and is entered for the specific gas being measured. The
standard density is entered at the standard reference temperature of 68
degrees F or 20 de grees C. The avail able range is:
0.07517 for English.
1.20367 for Metric.
Eng lish Unit Ver sion: 0.0000 to 2.0000 pounds per cu bic foot.
Met ric Unit Ver sion: 0.0000 to 40.0000 Ki lo grams per cu bic me ter.
TMPSRC Temperature source. Available assignments are 0 = CONstant,
1 = EXTernal and 2 = RTD.
0 = CONstant
TMPCON Temperature Constant. The temperature con stant can be used for
mass flow calculations when no external temperature inputs are
available and is entered as the average gas temperature. The avail able
range is:
68.0000 for English.
20.0000 for Metric
Eng lish Unit Ver sion: -50.0000 to 900.0000 de grees F.
Met ric Unit Ver sion: -50.0000 to 900.0000 de grees C.
RTDCAL RTD Calibration offset. The RTD calibration offset constant allows the
user to offset the actual measured value from the direct RTD input. The
value may be positive or negative and is entered in degrees F. The
available range is :
0.0000
Eng lish Unit Ver sion: -10.0000 to 10.0000 de grees F.
Met ric Unit Ver sion: -10.0000 to 10.0000 de grees C.
EX_TPZ External Temperature Zero. The External Temperature Zero is the
lower range (4 milliamp zero) setting for the external 4-20 milliamp
‘temperature’ input channel. The available range is:
0.0000
Eng lish Unit Ver sion: -50.0000 to 100.0000 de grees F.
Met ric Unit Ver sion: -50.0000 to 100.0000 de grees C.
TPZCAL Temperature Zero Calibration. The Temperature Zero Calibration
value is the 4 milliamp (zero) count value from the external 4-20 milliamp
‘temperature’ input channel. This parameter is used to calibrate the zero
point of the incoming 4-20 signal from the external 4-20 temperature
device. To calibrate the zero point of the incoming 4-20 signal, press the
EDIT key. The screen will display IN4MA. Set the incoming signal for 4
milliamps (or connect an external 4-20 calibrator set for 4 milliamps) and
press the EDIT key. The MST2000 will measure the external temperature
input channel and save the new 4 milliamp reference to memory.
4175
If an external
temperature option
is pre-installed and
calibrated at the
factory this will be
custom set for that
unit.
PROGRAM PARAMETERS OPERATION MANUAL
Page 14 MST2000 Multivariable SMARTFLOW
®
Transmitter Brandt Instruments, Inc.