A1-9 – Yokogawa digitalYEWFLO (DY-FF) User Manual

Page 72

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

A1-9

IM 01F06F00-01EN

Relative

Index

Index

Parameter Name

Factory Default

Write

Mode

Explanation

63 2063

SECOND_TEMP
_COEF

0

O/S

Sets the second temperature coeffi cient for the density
compensation of a liquid.
Setting range: –32000 to 32000
Unit: 1/TEMP_UNIT^2

64

2064 SIZE_SELECT

25 mm (2) (Note 5)

O/S

Selects the fl owmeter size: 1 = 15 mm (1/2 in.); 2 = 25 mm
(1 in.); 3 = 40 mm (1.5 in.); 4 = 50 mm (2 in.); 5 = 80 mm
(3 in.); 6 = 100 mm (4 in.); 7 = 150 mm (6 in.); 8 = 200 mm
(8 in.); 9 = 250 mm (10 in.); 10 = 300 mm (12 in.); 11 =
400 mm (16 in.)

65

2065 BODY_TYPE

Standard (1)

O/S

Selects the fl owmeter body type: 1 = Standard; 2 = High
Pressure; 3 = Low Flow Unit (1); 4 = Low Flow Unit (2)

66 206

VORTEX

_

SENSOR_TYPE

Standard (1)

O/S

Selects the vortex sensor type: 1 = Standard; 2 = High
Temperature; 3: Low temperature.

67

2067 K_FACTOR_UNIT

p/L (1)

O/S

Selects the unit of the K factor.

68

2068 K_FACTOR

68.6

O/S

Sets the K factor of the combined detector at 15°C.
Setting range: 0.00001 to 32000

69 2069

LOW_CUT_FLOW

0.46687

(minimum

gas fl ow rate for the
size of 25 mm [1 in.])

O/S

Sets the low cutoff fl ow rate level. Setting range: Minimum
fl ow rate x 0.5 to XD_SCALE.EU_100. The unit selected in
PRIMARY_VALUE_RANGE.Units Index applies.

70 2070

UPPER_DISPLAY
_MODE

1

AUTO

Selects the data to be displayed on the upper row of the
LCD indicator:

1 = Flow Rate (%): Instantaneous fl ow rate as a
percentage
2 = Flow Rate: Instantaneous fl ow rate in the specifi ed
unit
3 = Temperature (%): Temperature as a percentage (can
only be selected for a mode with the MV option)
4 = Arithmetic Out

71 2071

LOWER_DISPLAY
_MODE

1

AUTO

Selects the data to be displayed on the upper row of the
LCD indicator, as follows:

1 = Blank
2 = Total: Totalized fl ow rate
3 = Temperature: Temperature (can only be selected for
a mode with the MV option)
4 = Integrator Out

72

2072 DISPLAY_CYCLE

1 (500 ms)

O/S,
AUTO

Sets the display refresh cycle of the LCD indicator, as a
multiple of 500 milliseconds. Setting range: 1 to 10 (= 0.5
to 5 seconds)

73

2073 USER_ADJUST

1

O/S

User-set adjustment factor. The measured fl ow rate
multiplied by this factor is output. Setting range: 0.00001
to 32000

74 2074

REYNOLDS
_ADJUST

1 (Not Active)

O/S

Selects whether to activate Reynolds number correction: 1
= Not Active; 2 = Active

75

2075 VISCOSITY _VALUE 1 (Note 5)

O/S

Sets the viscosity coeffi cient of the process fl uid. When
REYNOLDS_ADJUST is set to Active, this parameter
needs to be set since it is used in the Reynolds number
calculation. Setting range: 0.00001 to 32000 [mPa•Pas]

76 2076

GAS_EXPANSION
_FACT

1 (Not Active)

O/S

Selects whether to activate expansion correction for a
compressible fl uid: 1 = Not Active; 2 = Active

77

2077 FLOW_ADJUST

1 (Not Active)

O/S

Selects whether to activate instrument error correction for
a compressible fl uid: 1 = Not Active; 2 = Active

78

2078 FLOW_ADJ _FREQ 0

O/S

Sets the fi rst to fi fth breakpoint frequencies for the
instrument error correction in an array format. Setting
range: 0.0 to 32000 (unit is Hz [1077])

79

2079 FLOW_ADJ_DATA

0

O/S

Sets the correcting values corresponding to the fi rst to fi fth
breakpoint frequencies for the instrument error correction
in an array format. Setting range: –50.00 to 50.00 (unit is
% [1342])

80

2080 TRIGGER_LEVEL

1

O/S

Sets the trigger level. Setting range: 0.1 to 20.0

81 2081

NOISE_BALANCE
_MODE

1 (Auto)

O/S

Indicates the mode of noise balance ratio tuning and
allows tuning to be activated:

1 = Auto: Automatic noise balance mode
2 = Manual: Manual noise balance mode
3 = Tuning at Zero: Setting this value causes noise
balance ratio to be tuned given that the current fl ow
rate is zero; then after completion of the tuning, the
parameter value reverts to 2 (Manual).

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