DustTrend - Model ES -Dust Emission Trend Monitor

• Easy push-button, auto set-up functions
• Uses proven AC Triboelectric technology with advanced algorithms to filter out noise and provide the most accurate dust measurement
• 4-20mA Analog, Relay and/or Digital RS-485(Modbus) Outputs

• Easy Set-up and Calibration...Set it and forget it!
• The easy auto set-up function is activated by pressing a button to automatically establish a “clean air baseline”, scale the 4-20 mA output range and set the alarms.
• Quick-connect mounting provides for ease of installation or maintenance.

• 4-20 mA output and/or enhanced Modbus communications available as standard.
• Provides continuous trend measurements that allow plant operators to identify changes in dust emission levels and optimize the facility`s filtration systems.
• Monitor the efficiency of dust collection systems and know the optimal time to replace filters.
• Monitor for unexpected events that can cost time, money, material loss, equipment damage and other problems.

• Digital RS-485(Modbus) connection as an alternative to analog / relay outputs and/or for connecting multiple sensors to one control system.
• Connect with the free DustConfigTM software to set custom alarm points, view live activity within the duct, or review data history for up to a 24-hour period.

• Ordinary and Hazardous location approvals - View Specifications
• Intrinsically safe probe for ultimate hazardous location protection

AC Triboelectric technology has been used for broken bag detection for many years and is an accepted technology by the US EPA for dust particle emission detection (40 CFR Sec 63.1350).

The Triboelectric effect is based on particles interacting with an electrically isolated sensing probe. When moving particles pass in close proximity to the probe a very small electrical charge is transfered from the particulate to the probe. This electrical signal is then processed by the DustTrend® ES via a series of advanced algorithms. The signal processing filters out other electrical charges, or electrical ‘noise’, which is not representative of the moving particles. These proprietary algorithms effectively differentiate undesirable signals from the desirable signal resulting in reliable particle emissions detection.

The DustTrend^TM ES is designed to provide a relative measurement of the concentration of dust within the exhaust air stream of a dust collection system and can also provide alarm outputs when pre-set thresholds are exceeded.

Using the Auto Set-up method will automatically configure these parameters:

• Running average of measured signal: 100 sec time constant default
• 4mA: 0x measured value from Auto Set-up default
• 20mA: 20x measured value from Auto Set-up default
• Alarm-1 threshold: 5x measured value from Auto Set-up default
• Alarm-2 threshold: 20x measured value from Auto Set-up default
• Alarm delay, hold on: 30 sec default
• Alarm delay, hold off: 30 sec default

• The DustTrendTM ES provides 4-20mA Analog, Relay and/or RS-485 (Modbus) Digital outputs.

Typical target materials for this switch include, but are not limited to:

Feed and grain, food processing (flour, sugar, etc.), wood dust, cement, fly ash, foundries, mining and minerals, steel, ferrous or non-ferrous metals, silica dust, energy, plastics, pharmaceutical, chemical processing and more.

Provides monitoring of dust emission levels and early leak detection where it is critical to safety, maintenance,
equipment operation, cost-savings, reducing material loss, plant efficiency (energy-savings), good “housekeeping”,
employee welfare, environment, local regulations, etc.

Alternative to opacity detection.

The DustTrend^TM ES provides trend monitoring and broken bag detection in the exhaust ducts of baghouses of various sizes, cartridge collectors, cyclones, and any other dust collector containing filters which may break or wear out. [See example below.]

Please note from the example, when placing the monitor allow for a distance of 3X to 5X the duct diameter both upstream & downstream from DustTrend^TM ES or DustAlarm^® ES to allow for ideal dispersion of particulate material.

• Available solid coupling probe extensions to provide an additional 2" (51mm) to 24” (610mm) of probe length.
• 316 Stainless Steel probe standard length up to 20” (508mm).
• [Customer specified probe lengths from 4.75” to 20”.]
• (CSL) Custom Probe Length Measurements
• (It is recommended to use a probe length that is 1/3 to 2/3 the diameter [or span] of the duct.)

• Click Here for Reference on How to Determine Overall Insertion Length for Customer Specified Legnths

Part # - Description

• 1-2400 - Spanner Wrench, for Cover Removal / Install
• 18-8007 - Kit, Mounting, 1” Ferrule Tri-Clamp (Ferrule, Gasket and Clamp)
• 18-8009 - Kit, Mounting, Convert Tri-Clamp to 3/4” NPT (Threaded Ferrule, Gasket and Clamp)
• 18-0151-0 [Note 3] - Probe Extension, Solid Coupling, Customer Spec Length, 2" (51mm) through 24” (610mm)

NOTE:

1. The probe length signifies the overall insertion length including the insulator. Required: Please provide specified length (CSL) for probe in inches at the end of the product part #. CSL range is 4.75” minimum to 20” maximum. (Example: 18-8411-111-12 for a 12” specified probe length.)
2. Tri-Clamp mounting kits sold separately. Please see “Accessories” section.
3. A standard probe is 20” (508mm) maximum in length. Probe extensions are used to extend the standard dust monitor probe. Example: A standard probe ordered with optional Part # 18-0151-0 with a Customer Specified Length (CSL) of 10” will extend the probe by 10 additional inches. The custom length (CSL) must be provided by the customer in addition to the Probe Extension Part #18-0151-0. For example: #18-0151-0, CSL=10”. A probe extension will normally be shipped with the device.

Click Here for Reference on How to Determine Overall Insertion Length for Customer Specified Legnths

Power Requirements:

• 95-240VAC (±10%), 50/60 Hz; 18-28VDC (±10%)
• Power Consumption: ≤ 5VA (AC); ≤ 2.5W (DC)
• Fuse Breaking Capacity: 1500A @ 250VAC; (Haz-Loc Rating): 300A @ 30VDC
• Altitude: 6,562 ft (2000m) max
• Installation Category: II
• Pollution Degree: 2
• Process Temperature: Max: 392°F (200°C) at probe location. (CL ll) Class III installations: Process temperature must not exceed 325°F (164°C)
• Starting Ambient Temp.: 4° to 149°F (-16° to 65°C)
• Running Ambient Temp.: -22° to 149°F (-30° to 65°C)
• Ambient Humidity: Max 95% RH, non-condensing
• Sensitivity Range: from 0.0001 grains/ft3

Relay Outputs (2 Isolated SPDT):

• 3A @ 250VAC max each
• 3A @ 30VDC max each

Relay Setpoint:

• Factory default-
• Alarm-1: 5x ref value
• Alarm-2: 20x ref value
• Relay Threshold Range: 1,000,000,000 Max Units

Relay Time Delay:

• 0 to 60,000 sec (30 sec factory default)
• Sensitivity Range: From 0.1 mg/m3 (0.000044 grains/ft3); Max up to several g/m3 depending on application.
• Fail-Safe State: Alarm
• Digital Output, Hardware: RS-485 (3-wire, half duplex, isolated)

Digital Output, Protocol:
Modbus RTU (Default serial: Baud Rate: 38.4K

• Data bits: 8
• Parity: N
• Stop Bits: 2)

Analogl Output:

• 4-20mA (self powered, isolated, 0-250 Ω loop)

Running Averaging:

• 0 to 6,553 sec time constant (100 sec factory default)

Local Indicator:

• Bi-color LED-
• Green On = Power Applied
• Green Flashing = Auto Setup
• Red On = Pre-Alarm
• Red Flashing = Alarm
• Alternating Red / Green = Error
• No Light = No Power
• Conduit Connections: (2) 1/2” NPT

Housing:

• Powder coated die-cast aluminum;
• NEMA 4X, ENCLOSURE TYPE 4X,
• IP66
• Mounting: 1” Tri-Clamp Type Quick-Disconnect, 316 SS
• Pressure: 87 psi maximum
• Insulation Material: PPS (Ryton®)
• Probe Material: 0.39” diameter, 316 Stainless Steel

Probe Length:

• Cust. Specified Length - CSL:
• 4.75” (121mm) to 20” (508mm)
• [Solid coupling extensions up to 24” (610mm) available.]

Ship Dims & Weight:

• 35.5”Lx8”Wx8”H; 7 lbs Approx.
• (902x203x203mm; 3.2kg Approx.)