Reranging The Analog Output; Rezero Procedure; Verifying Calibration With The Ez Cal Option - Bailey Platinum standard Series Product Instruction

CALIBRATION

RERANGING THE ANALOG OUTPUT

REZERO PROCEDURE

VERIFYING CALIBRATION WITH THE EZ CAL OPTION

RERANGING THE ANALOG OUTPUT
4 - 6
By pressing the RERANGE key on the Type STT terminal, the
current (four to 20-milliampere) output can be quickly
reranged to represent a different portion of the input span.
This procedure bypasses the need to completely configure the
Type PTSDL level transmitter. Damping, engineering units,
and the temperature alarms can also be adjusted during
rerange.
NOTE: The transmitter output is based on the values entered in this
procedure. The terminal will not reject invalid ranges; therefore, it is
imperative that the operator know the range limits specified for the
transmitter. Refer to Table
This procedure zeroes the transmitter only and does not com-
pensate for slight inaccuracies in the four to 20-milliampere
current loop. To adjust for these inaccuracies, refer to
ADJUSTMENT (FINE TUNING THE ANALOG
By pressing the REZERO key on the Type STT terminal, the
transmitter can be zeroed without performing a complete
bench calibration. There is no effect on the span of the
transmitter.
NOTES:
1. The EZ CAL option is for zero and span validation only. Do not
use it to make large adjustments to the zero or span of the transmit-
ter. The EZ CAL option provides no means to indicate if an error is
made.
2. In order to use the EZ CAL option, there must be a way to iso-
late the transmitter from the process and apply the pressures indi-
cated to the high pressure (+) side of the transmitter.
1. If not installed, refer to the installation section for installa-
tion procedures.
2. Open the dust cover on the EZ CAL option.
3. Connect the pressure source to the high pressure (+) side
of the cell.
4. Apply a pressure to the cell equal to the configured lower
range value.
5. Turn and hold the adjustment screw on the EZ CAL option
in the zero direction (indicated on the EZ CAL option) for at
least three seconds. The transmitter automatically adjusts the
output to zero percent.
1-3 for the proper ranges.
LOOP).
D/A
WBPEEUI110505A0