Standard Specifications - YOKOGAWA DY025 User Manual

9.2 Standard Specifications

Refer to GS 01F06F01-01E for Fieldbus communica-
tion type, marked with " ".
Performance Specifications
Fluid to be Measured :
Liquid, Gas, Steam (Avoid Multiphase Flow
and Sticky Fluids)
Measuring Flow Rates :
Refer to Table 9.5.2
Accuracy : ±0.75% of Reading (Liquid)
±1% of Reading (Gas, Steam)
Refer to P9-15
For the Multi-Variable Type, refer to 9.4.2 term.
Repeatability : ± 0.2% of Reading
Calibration :
This flowmeter is factory-calibrated using a
water flow.
Temperature and flow calibration by water
flow when /MV is selected.
Normal Operating Condition
Process Temperature Range :
–29 to 250 °C (general)
–196 to 100 °C (Cryogenic Version:option)
–29 to 450 °C (High Process Temperature
Version:option)
For the Multi-Variable Type, refer to 9.4.2 term.
Refer to Figure 1 for integral converter type.
Process Pressure Limit :
–0.1MPa (–1 kg/cm
Ambient Temperature Range :
–29 to 85 °C (Remote type detector)
–40 to 85 °C (Remote type converter)
–29 to 85 °C (Integral type, refer to Figure
9.2.1)
–29 to 80 °C (Integral type with Indicator, refer
to Figure 9.2.1)
–30 to 80 °C (Remote type converter with
Indicator)
Ambient Humidity : 5 to 100% RH (at 40 °C)
Power Supply Voltage ( ) : 10.5 to 42 V DC
(Refer to Figure 9.2.2 ; Relationship Between
Power Supply Voltage and Load Resistance)
Mechanical Specifications
Material (General Type):
Refer to Table 9.3.1
Wetted Parts:
Body; Stainless steel JIS SCS14A,
ASTM CF8M
Shedder Bar; Duplex stainless steel
[equivalent to JIS SUS329J1]
Size 15mm
Size 25mm to 300mm
*1 DCS1 is a registered trademark of Daido
Castings Co., Ltd.
Gasket: JIS SUS316 stainless steel with
®
Teflon * coating.
®
*Teflon is a registered trademark of E.l. Du Pont
de Nemours & Co.
2
) to flange rating.
(No Condensation)
ASTM S31803
*1
DCS1 or EN 1.4517
Non-Wetted Parts:
Housing (Case, Cover):
Aluminum alloy JIS ADC12
Name Plate: Stainless steel JIS SUS304
DYA Mounting Bracket for 2B pipe:
Cold-reduced carbon steel sheet JIS SPCC,
JIS SECC
Coating Color:
Housing:
Polyurethane corrosion-resistant coating
Deep sea moss green (Munsell 0.6GY
3.1/2.0)
DYA Mounting Bracket for 2B pipe:
Polyurethane corrosion-resistant coating
Frosty white (Munsell 2.5Y 8.4/1.2)
Protection:
IP67 immersion proof and dust proof. (NEMA 4X).
Hazardous Area Classifications:
Refer to 9.4 Option Specifications.
Electrical Connection:
JIS G1/2 female, ANSI 1/2 NPT female,
ISO M20 × 1.5 female
Signal Cable:
Model DYC cable, used for remote detector and
converter.
Max. length : 30 m.
Outer Sheath Material: Heat resisting polyethylene
Durable Temperature : –40 to 150 °C
Weight:
Refer to 9.6 External Dimension.
Mounting:
Integral type and Remote type detector :
Flange mounting or wafer mounting by
flange adjacent to the pipeline.
Remote type converter : 2 inch pipe mounting.
Electrical Specifications
Note*: Pulse output, alarm output and status output use
the common terminal, therefore these functions
are not used simultaneously.
Output Signal ( ) : Dual Output (Both Analog and
Transistor contact output can be obtained
simultaneously). In this case refer to "3:
WIRING".
Analog : 4 to 20 mA DC, 2-wire system.
Transistor Contact Output* :
Open collector, 3-wire system.
Pulse, alarm, status output are selected by
parameter setting.
Contact rating: 10.5 to 30 V DC, 120 mA DC
Low level: 0 to 2 V DC. (refer to Figure 9.2.3)
Communication Requirements :
Communication Signal :
BRAIN or HART communication signal
(superimposed on a 4 to 20 mA DC
signal)
Note: HART is a registered trademark of the HART
Communication Foundation.
Conditions of Communication Line :
Load Resistance :
250 to 600 Ω(including cable resistance).
Refer to Figure 9.2.2
Supply Voltage :
16.4 to 42 V DC for digital communications
BRAIN and HART protocols .(16.4 to 30 V DC
for intrinsically safe type).
Refer to Figure 9.2.2
9-2
9. GENERAL DESCRIPTION
IM 01F06A00-01E