SMAR ld301 - Pressure Trim [Trim]

LD301 - Operation and Maintenance Instruction Manual
4.14
Reset Totalization (RESET)
Z: Moves to the ESCAPE from the totalization menu.
S: Reset the totalization.
Escape (ESC)
Z: Moves to the TOTAL function.
S: Escapes to the main menu.
Pressure Trim [TRIM]
This field of the tree is used to adjust the digital reading according to the applied pressure. The pressure TRIM
differs from RANGING WITH REFERENCE, since the TRIM is used to correct the measure and RANGING
WITH REFERENCE reach only the applied pressure with the output signal of 4 to 20 mA. Figure 4.9 shows the
options available to run the pressure TRIM.
* PROTECTED BY PASSWORD. THE PASSWORD CODE IS SIMILAR
THAT DESCRIBED FOR THE OPERATION MODE.
SAVE ESC
z
z
s
s
UPPER
s s
z z
UPPER
ZERO
s
z
LOWER
s
z
s
z
LOWER
TRIM *
ESC
s
z
Figure 4.9 – Pressure Trim Tree
TRIM BRANCH (TRIM)
Z: Moves to ESC function.
S: These functions are protected by a "password." When prompted, PSWD activates (S) 2
times to proceed. After entering the password, the TRIM branch starting with the Zero
Trim function is accessed.
Zero Pressure Trim (ZERO)
Z: Moves to the LOWER pressure TRIM function.
S: Trims the transmitter internal reference to read 0 at the applied pressure.
Lower Pressure Trim (Lower)
Z
:Moves to option DECREASES THE LOWER PRESSURE VALUE.
S: Adjusts the transmitter internal reference, increasing the displayed value that will
be interpreted as the Lower Pressure value corresponding to the applied pressure.