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415 Steam & Gas Flow Computer
Brand: Yokogawa Electric CorporationThe 415 Steam and Gas Flow computer incorporates a variety of compensation equations for gas and vapors.
Inputs from a wide range of flowmeters are accepted, including vortex, turbine, orifice plate, averaging pitot tubes, wedges and target flowmeters.
Also, where two differential pressure transmitters are used across an orifice or similar device, to increase the measured flow range, both DP transmitter inputs are accepted and scaled separately with automatic crossover.
Features- Displays mass flow, corrected volume and energy flow
- Accepts 4-20mA and frequency flow inputs
- Temperature and pressure compensation
- Dual ranged DP transmitter inputs
- Operates from 14-28V DC or AC mains
- Simplified programming
- Data logging output
Specifications
Accuracy
- 0.05 % - 4-20 mA Inputs
- 0.1° C (0.2° F) - RTD Input (Model 415R)
- Better than 0.1 % - 4-20 mA Output Option
Adjustment
- Sealed Membrane Keypad with 4 Keys
Approvals & Certifications
- CSA
- ETL (US)
- UL 508
Communication
- Baud Rate: 300 to 9,600
- Data Length: 7-bits, 8-bits
- Data Logging - Output Generated at Intervals of Once A Minute to Once Every 24 Hours
Current
- Absolute Pressure is Programmable at 4 mA - Span
- Gauge Pressure is Programmable at 20 mA - Span
Display
- 2 Line x 20 Characters (5.5 mm High) Alphanumeric Backlit LCD
Duty Cycle
- 49 Pulses/second, Max.
Electrical Rating
- 250 Vac / 30 Vdc / 5 A / 250 VA - Relay Output Option
Environmental Protection
- IP65
- NEMA 4X
Frequency
- 0.25 Hz on Rate, 0 Hz on Total - Min.
- 10 kHz - Max.
Function
- High & Low Flow Rate Alarms based on the Flow Rate in Mass, Corrected Volume or Energy
- Outputs Flow Rate in Mass, Corrected Volume or Energy
Input
- RTD
Input Impedance
- 250 ohms - 4-20 mA Inputs
K-Factor
- 0.1000 to 999,999
Load
- 500 ohms, Max.
- 950 ohms from External 24 Vdc
Measuring Range
- psia: 0 to 10,000 (kPa: 0 to 100,000, bar: 0 to 1,000)
Media
- Gas
- Natural Gas
- Steam
Operating Temperature
- 0° to 55° C (32° to 131° F)
Output
- 4-20 mA
- Open Collector Transistor Will Sink 100 mA - Max.
- Relay
Power Requirement
- 110 Vac
- 14-28 Vdc, 300 mA - Typical
- 95-135 Vac
Pressure Range
- psia: 0 to 10,000 (kPa: 0 to 100,000, bar: 0 to 1,000) - Ideal Gas, General Gas
- psia: 1 to 10,000 (kPa: 1 to 100,000, bar: 0.01 to 1,000) - Steam
- psia: 14.69 to 4,985 (kPa: 101,325 to 34,380, bar: 1.013 to 343.8) - Natural Gas
Pressure Type
- Absolute
- Gauge
Resistance
- 250 ohms Resistors Connected to A Common Signal Ground (Current Sinking) - Circuit
Resolution
- 10-bits - 4-20 mA Output Option
RTD Type
- Pt100
Sensor, Probe Type
- RTD
Supply Voltage
- 8-24 Vdc Field Adjustable, 65 mA - Max.
Temperature Range
- -100° to 200° C (-148° to 392° F) - RTD Input
- 20° to 800° C (68° to 1,472° F) - Steam
- -273° to 1,200° C (-459.4° to 2,192° F) - Measurement Range
- -273° to 800° C (-450° to 1,472° F) - General Gas, Ideal Gas
- -40° to 115° C (-40° to 240° F) - Natural Gas