A1-8 – Yokogawa digitalYEWFLO (DY-FF) User Manual

Page 71

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<APPENDIX 1. LIST OF PARAMETERS FOR EACH BLOCK OF digitalYEWFLO>

A1-8

IM 01F06F00-01EN

Relative

Index

Index

Parameter Name

Factory Default

Write

Mode

Explanation

43 2043

LIMSW_2

_

HYSTERESIS

0

O/S

Sets the hysteresis of limit switch 2 to be applied
for resetting the LIMSW_2_VALUE_D to OFF after
LIMSW_2_TARGET went beyond LIMSW_2_SETPOINT
and LIMSW_2_VALUE_D turned ON (when used as a
high-limit switch), or after LIMSW_2_TARGET went below
LIMSW_2_SETPOINT and LIMSW_2_VALUE_D turned
ON (when used as a low-limit switch).

44

2044 LIMSW_2_UNIT

Indicates the unit set in LIMSW_2_TARGET.

45

2045 ALARM _PERFORM 0x1070

AUTO

A series of bits, each of which works as a switch to enable
and disable specifi c alarm(s); write zeros to the respective
bits in this parameter to disable desired alarms. (For
details, refer to APPENDIX 3 "OPERATION OF EACH
PARAMETER IN FAILURE MODE.")

46 2046

ARITHMETIC
_BLOCK

1 (Available)

Indicates whether the arithmetic block is available.

47

2047 SENSOR_STATUS

Indicates whether the fl ow detector has the built-in
temperature sensor:

1 = Standard
2 = Built-in Temp. Sensor

48 2048

THERMOMETER
_FUNCTION

1 (Monitor only)
(Note 5)

O/S

Selects the usage of the thermometer
function:

1 = Monitor only
2 = Saturated steam
3 = Superheat steam
4 = GAS: STD/Normal
5 = LIQUID: Mass
6 = Not use

(For details,
refer to
Section 6.2
"Transducer
Block
Parameters.")

49

2049 FLUID_TYPE

1 (LIQUID: Volume)
(Note 5)

O/S

Selects the type of the measured
process fl uid:

1 = LIQUID: Volume
2 = GAS/STEAM: Volume
3 = LIQUID: Mass
4 = GAS/STEAM: Mass
5 = GAS: STD/Normal

50 2050

TEMPERATURE
_UNIT

°C (1001) (Note 5)

O/S

Selects the unit of temperature.

51

2051 PROCESS_TEMP

15 (Note 5)

O/S

Sets the normal operating temperature of the process.
Setting range: –999.9 to 999.9

52

2052 BASE_TEMP

15 (Note 5)

O/S

Sets the temperature under the standard conditions of the
process. Setting range: from –999.9 to 999.9

53 2053

DENSITY_UNIT Kg/m

3

(1097) (Note 5) O/S

Selects the unit of density.

54 2054

PROCESS

_

DENSITY

1024 (Note 5)

O/S

Sets the density of the process fl uid under the normal
operating conditions. Setting range: 0.00001 to 32000

55

2055 BASE_DENSITY

1024 (Note 5)

O/S

Sets the density of the process fl uid under the standard
operating conditions. Setting range: 0.00001 to 32000

56

2056 PRESSURE_UNIT

MPaa (1545) (Note 5) O/S

Selects the unit of pressure between 1545 (= MPaa) and
1547 (= kPaa).

57 2057

PROCESS

_

PRESSURE

0.1013 (Note 5)

O/S

Sets the normal operating absolute pressure of the
process. Setting range: 0.00001 to 32000

58

2058 BASE _PRESSURE 0.1013 (Note 5)

O/S

Sets the absolute pressure under the standard conditions
of the process. Setting range: 0.00001 to 32000

59

2059 DEVIATION

1 (Note 5)

O/S

Sets the deviation factor of the process fl uid. Setting range:
0.001 to 10.0

60 2060

SECONDARY
_VALUE_FTIME

4 s

AUTO

Sets the time constant of damping for the temperature
calculation. Setting range: 0 to 99 s

61

2061 CABLE_LENGTH

0

O/S

Sets the length of cable between the fl ow detector and
remote amplifi er. Set 0 for an integral type digitalYEWFLO.
Setting range: 0 to 30 (meters)

62 2062

FIRST_TEMP
_COEF

0 O/S

Sets

the

fi rst temperature coeffi cient for the density

compensation of a liquid.
Setting range: –32000 to 32000
Unit: 1/TEMP_UNIT

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