Table of Contents
Advertisement
Optional Configuration
Table 8-3
API reference temperature tables continued
CTL
derivation
Table
method
6C
Method 2
24C
Method 2
54C
Method 2
Temperature data
For the temperature value to be used in CTL calculation, you can use the temperature data from the
sensor, or you can poll an external temperature device:
•
To use temperature data from the sensor, no action is required.
•
To poll an external temperature device, configure polling for temperature as described in
Section 9.4. When polling is enabled, the transmitter will automatically use the external
temperature value for CTL calculation.
8.7
Configuring cutoffs
• Model 1500 AN
• Model 1700 AN
• Model 1700 IS
• Model 2500 CIO
• Model 2700 AN
• Model 2700 IS
• Model 2700 CIO
See Table 8-4 for cutoff default values and related information. See Sections 8.7.1 and 8.7.2 for
information on how the cutoffs interact with other transmitter measurements.
Table 8-4
Cutoff default values
Cutoff type
Mass flow
Volume flow
Gas standard volume
flow
Density
72
Base temperature
60 °F, non-configurable
60 °F, non-configurable
15 °C, configurable
Cutoffs are user-defined values below which the transmitter reports a value of zero
for the specified process variable. Cutoffs can be set for mass flow, volume flow, or
density.
Note: The density cutoff is available only with core processor software v2.0 or
above and transmitter software rev3.0 or above.
Default
Comments
0.0 g/s
Recommended setting:
• Standard use: 0.5–1.0% of the sensor's rated maximum flow rate
• Empty-full-empty batching: 2.5% of the sensor's rated maximum flow rate
0.0 L/s
Lower limit: 0
Upper limit: the sensor's flow calibration factor, in units of L/s, multiplied by 0.2
0.0
No limit
3
0.2 g/cm
Range: 0.0–0.5 g/cm
Density unit and range
Degrees API
Base density
Reference temperature
60 °F
60 °F
15 °C
3
Micro Motion Series 1000 and Series 2000 Transmitters
Relative density
Supports
Degrees API
Relative density
3
Base density in kg/m
Advertisement
Table of Contents
