YOKOGAWA DPharp Series User Manual

<3. Operation>
3-13
IM 01C25T03-01E
c. Releasing Password
(D57: NEW PASSWORD)
To release the password, enter eight spaces at
D57: NEW PASSWORD during the period that the
parameter change is possible.
d. Software Seal (D58: SOFTWR SEAL)
When you lose the password that has been
registered, it is possible to release the write protect
function by using general password. Contact
Yokogawa about the general password. When
the password is used, the status shown in the
parameter D58: SOFTWR SEAL is changed from
KEEP to BREAK. The status returns to KEEP
by entering a newly set password at D56: WRT
ENABLE.
(12) Output Status Setup when a Hardware
Error Occurs
(D26: ERROR OUT)
This parameter allows the setting of the output
status when a hardware error occurs. The following
selections are available.
(a) BURNOUTDIR;Outputsthecorresponding
values of 110% or –5% of output signals
according to the setting by burnout direction
switch (BO) on the CPU board.
(b) HOLD;Outputsthelastvalueheldbeforethe
error occurred.
Note: A hardware error means CAP.ERR of AL.01 or AMP.ERR
of AL.02 which are shown in table 4.1 Alarm Message
Summary.
• Example: Set the output status to HOLD when
a hardware error occurs.
ESC
SET
D26:ERROR OUT
BURNOUT DIR
< BURNOUT DIR >
< HOLD >
Use the or key
to select HOLD.
Press the key twice to
enter the setting.
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Then press the (OK) key.
(13) Bi-directional Flow Measurement
Setup
(E30: BI DIRE MODE)
(a) This parameter enables selection of 50% output
at an input of 0 kPa.
 Procedureisshowninthegurebelow.
(b) Combining this with C40: OUTPUT MODE
provides a square root output computed
independently for 0% to 50% output and for
50% to 100% output.
• Example: If measurement range is 0 to 10 kPa
(LRV=0 kPa, URV=10 kPa)
The measurement range changes to –10 to 0 to 10 kPa
(output 0% to 50% to 100).
Note that C21: PRES LRV and C22: PRES URV
are not changed.
ESC
SET
E30:BI DIRE MODE
OFF
< OFF >
< ON >
Use the or key
to select ON.
Press the key twice to
enter the setting.
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Then press the (OK) key.
20 mA (100% display)
4 mA (–100% display)
● Output mode “LINEAR”
LRV URV
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20 mA (100% display)
Low Cut
4 mA (–100% display)
● Output mode “SQUARE ROOT”
LRV URV

YOKOGAWA DPharp Series Specifications

General

Brand	YOKOGAWA
Model	DPharp Series
Category	Transmitter
Language	English