9-3
IM 01F06A00-01E
9. GENERAL DESCRIPTION
Indicator:
Flow rate (% or engineering units) or
temperature value and totalizer can be
indicated simultaneously.
Short message for self diagnostics indicates.
Local parameter setting can be operated by
key switches.
In mounting direction, the right and left 90
°
is
rotatable.
EMC Conformity Standards:
EN61326-1 Class A, Table 2 (For use in
industrial locations), EN61326-2-3
EN55011 Class A Group 1
Note1: This instrument is a Class A product, and it is
designed for use in the industrial environment.
Please use this instrument in the industrial
environment only.
Note2: Use the metal conduit for the remote cable.
Pressure Equipment Directive:
Notified Body Identification Number 0038
Module H
T090201.EPS
* PS : Maximum allowable pressure for Flow tube, DN : Nominal size
** Refered to Table 6 coverd by ANNEX II of EC Directive on Pressure
Equipment Directive 97/23/EC
*** DY015 and DY025 are outside the scope of CE marking of PED.
MODEL
DY015
DY025
DY040
DY050
DY080
DY100
DY150
DY200
DY250
DY300
DN(mm)*
15
25
40
50
80
100
150
200
250
300
PS(Mpa)*
42
42
42
42
42
42
42
42
42
42
PS-DN
(Mpa-mm)
630
1050
1680
2100
3360
4200
6300
8400
10500
12600
CATEGORY**
Article 3***,
Paragraph 3
Article 3***,
Paragraph 3
II
II
II
II
III
III
III
III
BRAIN
:
Space from other Power Line
: 15cm or
more (Parallel wiring should be avoided.)
Communication Distance :
Up to 2 km, when polyethylene insulated
PVC-sheathed cables (CEV cables) are used.
Communication distance varies
depending on type of cable used.
Load Capacitance:
0.22
µ
F or less
Load Inductance:
3.3 mH or less
Input Impedance of Receiver Connected to
the Receiving Resistance:
10 k
Ω
or more at 2.4 kHz.
Functions:
Damping Time Constant :
0 to 99 Sec (63% response time)
Note: Delay time is 0.5 Sec.
Analog output circuit time constant is 0.3 Sec.
Pulse Output Function*:
Pulse output is selected from scaled pulse,
unscaled pulse, frequency (number of pulses
output per second at 100% of output).
Pulse frequency : Max 10 kHz
Duty cycles : Approx.50% (1:2 to 2:1)
Self -diagnostics and Alarm Output *:
In case alarm (over range output signal,
EEPROM error, vibration noise, abnormal
flow such as clogging, bubble) occurs, an
alarm signal is output and indicated.
The alarm signal output goes from close(ON)
to open(OFF) during alarming.
Status Output Function *:
Flow Switch:
In case flow rate decreases under the flow set
value, a status signal is output.
Status signal output mode can reverse (ON/
OFF) .
Analog Output Function:
Analog output is selected from flowrate
temperature value when option code /MV is
selected.
Data Security During Power Failure:
Data (parameter, totalizer value, etc) storage
by EEPROM. No back-up battery required.
Correction:
Instrument Error Correction:
Vortex flowmeter instrument errors can be
corrected by segment approximations.
Reynolds Number Correction:
Output error at Reynolds number 20000 or
less is corrected by using five-break-point
line-segment approximation.
Gas Expansion Correction:
When measuring a compressibility gas and
steam, this expansion factor is useful to
correct the error at high velocity of flow (35m/
s or more).
Down-scale or Up-scale burn out.
In case a CPU or EEPROM failure occurs,
flow meter output the signal of Up-scale (21.6
mA or more).
Up-scale or Down-scale (3.6 mA or less) is
user-selectable through the fail mode alarm
jumper.
