Deltaflow 180 Flow Monitor

Flow Rate

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The DeltaFlow® 180, measures volumetric flow from smoke stacks or pipes for process and compliance applications; it is a complete flow monitoring solution with easy installation in all applications including those with elevated temperature, particulate loading and corrosive gas concentration.

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Model DF180

Gas Flow Rate and Temperature Monitor

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Applications

CEMS – Stack Air Monitoring

Features

Compliant with US EPA and international air quality regulations
Available for Class 1, Division II and ATEX Zone 2 hazardous area installations
Automated purge and interference check to ensure continuous operation
Conversion to standard flow rates for temperature and pressure variations
Browser based application for setup, data management, and system control
30-days of data stored locally when used with TML’s RegPerfect® Software

Specifications

FLOW MEASUREMENT	Range Long Term Repeatability Relative Accuracy (vs. EPA Test Method 2) Response Time Drift	0-300 ft/sec (0-91 m/sec) ± 0.3 ft/sec (± 0.1 m/sec) Site dependent, see Commercial Performance Warranty Typically < 5% above 10 ft/sec 8 seconds ± 1.5% of span over operating temperature range of instrument enclosure
MEDIA CONDITIONS	Temperature Pressure Moisture Particulate	-40° to 1000°F (-40° to +538°C) -2 to 2 psig (-13.8 to 13.8 kPa) Dry to saturated, including condensed water ≤ 3000 mg/m**³
DUCT SIZE	Diameter	From 1 - 45 Ft. (0.3 – 14m) Dia.
TEMPERATURE MEASUREMENTS	Accuracy Long Term Repeatability	± 6 °F (-14.4°C) ± 0.5% of span per year
POWER REQUIREMENTS		100-240 VAC, 50/60Hz, Single Phase, 70 VA Maximum
ENVIRONMENT	Ambient Temperature Limits Relative Humidity Instrument Enclosure Ratings	Probe Assembly: -40° to +160°F (-40° to 71°C) Instrument Enclosure: +20° to 104°F (-6.7 to +40°C) Probe Assembly: 5% to 100% humidity, condensing Instrument Enclosure: 0 to 95% non-condensing NEMA 4/IP66 is standard, Ex Py purge protection can be added as an option for Class I Division 2, and Zone 2 applications
MOUNTING	Process Connection	4" 150# ANSI flange
DIMENSIONS & WEIGHT	Instrument Enclosure Probe Assembly	Size: 30H x 24W x 12D (inches), 76H x 61W x 30.5D (cm) Weight: 135 lbs. (61 kg) Size: Application dependent Weight: 26 lbs. (11.8 kg), typical, application dependent
WEB INTERFACE HMI CHARACTERISTICS	User Input Controls	Web interface
I/O AVAILABLE	Analog Outputs Number Isolation Type Digital Inputs Number Modes Relay Outputs Number & Type	2 Optical & capacitive barriers: channel to channel, channel to circuit common & earth 4 Non-isolated (dry contact) 4 SPDT, N.O./N.C. (Single Pole Double Throw, Normally Open and Normally Closed Contacts), 0-240VAC/VDC, 10A Max
* Teledyne Monitor Labs reserves the rights to make changes in construction, design, specifications, and/or prices without prior notice. ** High temperature applications, please consult factory.

Description

The DELTAFLOW, Model DF180, is a state of the art differential pressure measurement system used to calculate gas velocity and pollutant mass emissions in square, rectangular or circular air ducts and stacks using either single or multi point measurements. It especially excels in gas streams with challenging properties such as high temperature, moisture content, pressure, and corrosivity.

Pitot Tube Probe

Depending on the application, the pitot tube probe is constructed of stainless steel or hastelloy for easy cleaning and a long service life. A thermocouple temperature sensor is included in the probe assembly. The differential pressure measurement is performed using a pitot tube that is connected to a pressure sensor with Teflon tubing. Mounting is done by 4" flange; the tube is provided with an external indicator, so that its impact port can be accurately rotated to face directly into the gas flow.

Deltaflow Probe2.jpg

Instrument Enclosure

The optional instrument box enclosure is rated NEMA 4/IP66 as standard equipment but can be upgraded with purge protection to meet Class 1, Division 2, Zone 2 specifications; it can be mounted at the stack/duct , climate controlled shelter, or at grade level. Pressure and temperature transducers and a custom valve and manifold design are housed within the enclosure; these components provide precision calibrations and blowbacks to maintain reliable accuracy.

Deltaflow enclosure.jpg

Communications

The DELTAFLOW, Model DF180, Instrument Control Panel features 10/100 Based Ethernet interface as standard equipment. This capability provides a multilevel password protected interface to TCP/IP networks such as LAN's or the Internet. Client side user interface access is via standard web browsers. Simultaneous Modbus TCP access to instrument parameters and emission data is also supported.

Web Browser Interface

The DELTAFLOW Ethernet web browser interface is used to view data, calibrations, alarms, configure, etc...

Deltaflow Web Interface.jpg

About Us

Teledyne Monitor Labs (TML) has more than 50 year’s global experience in the design and manufacture of continuous emission monitoring systems (CEMS), process monitoring, industrial sensors and instruments, ambient monitoring and software. Our services and products serve the following industries: power generation, oil/gas refining, petrochemical, cement, lime, pulp and paper, steel, chemical, and agriculture.