Reference Manual
300550EN, Rev AA
December 2010
5-13
Rosemount 2240S
Section 5. Configuration/Operation
5.5 SWITCHES AND
RESET BUTTONS
5.5.1
DIP Switches
The Rosemount 2240S is equipped with four DIP switches, see Figure 5-8.
Figure 5-8. DIP Switches
The switches control the following settings:
Table 5-3. DIP switches
The Simulate Switch
The Simulate switch is used to simulate a resistance value from temperature
elements. The switch returns from “ON” to “OFF” after power is applied to the
transmitter. This feature prevents the transmitter from being left in simulation
mode.
The Write Protect Switch
The Write Protect switch prevents unauthorized changes of the 2240S
database registers.
1
2
3 4
On
Off
DIP Switches
Number
Function
Description
1
Simulate
Enables simulation of temperature measurement. For
more information see “The Simulate Switch” on
page 5-13.
2
Write Protect
Enables write protection of configuration data.
3
Spare
Not used
4
Average
Enables the use of an average temperature sensor, see
“Tank Average Temperature Calculation” on page 5-4..
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