Emerson Rosemount 2240S, Справочное руководство, Страница: 60 / 194

50
Reference Manual
00809-0100-2240, Rev DA
Configuration/Operation
October 2017
Configuration/Operation
5.3 Basic configuration
Temperature elements and a Water Level Sensor can be connected to the Rosemount 2240S Multi-input
Temperature Transmitter.
5.3.1 Temperature elements
The Rosemount 2240S Multi-input Temperature Transmitter supports the configuration options listed in
Table 5-1 for connected temperature elements. These options can be configured in TankMaster
WinSetup via the 22XX ATD window (the Average Temperature Calculation and 2240 MTT Temperature
Sensor tabs). For F
OUNDATION
fieldbus systems the AMS Device Manager can be used.
Table 5-1. Rosemount 2240S Temperature Element Configuration
Settings Description
Number of sensor temperature
elements
Maximum 16 temperature elements (1) .
1. The Rosemount 2460 System Hub supports 16 elements and the Rosemount 2160 Field Communication Unit supports a maximum of 14
temperature spot elements. However, Average Temperature will be correctly calculated by a Rosemount 2410 Tank Hub connected to a
Rosemount 2240S with 16 temperature elements regardless if the tank hub is connected to a Rosemount 2460 or a Rosemoutn 2160.
Sensor type Spot or average sensor types are supported.
Temperature sensor element
position in tank
Specify the position of each temperature element in the tank, see
“Temperature sensor element positions” on page 51 .
Exclude spot sensor element
from tank average temperature
calculation
You can exclude certain spot elements from the average temperature
calculation, see “Tank average temperature calculation” on page 51 .
Insert distance
Minimum distance between element and surface for element to be
included in average calculation, see “Insert distance” on page 52 .
Auto Sensor Configuration
This option controls whether the temperature sensor is automatically
configured based on the “Averaging RTD” DIP switch setting, or if manual
configuration is required. Automatic configuration means that the sensor
is configured according to a specific default setting.
See “DIP Switches” on page 62 for more information.
Conversion method
•
Auto
•
PT100 (spot)
•
CU90 (average)
•
CU90US
•
User-defined (see “Conversion methods” on page 65 ):
- linearization table
- formula
- individual formula
Temperature range Measurement range of the temperature elements
Sensor wiring (Connection)
Type of sensor wiring:
•
3 wire spot or average with common return
•
3 wire independent spot
•
4 wire independent spot