SILO PATROL® SE INVENTORY MONITORING SYSTEM
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Manufacturer: Monitortech(USA)
Model: SMU SERIES
Introduction:
The Silo Patrol® SE Inventory Management System is an industry-leading cable-based smart level sensor system that is designed to handle some of the harshest and most dynamic conditions. The Silo Patrol SE system incorporates state-of-the-art sensors, a wide choice of operator interfaces, auxiliary outputs and displays, as well as unique remote/vendor managed inventory solutions.
The introduction of Silo Patrol several years ago delivered the first truly robust level sensor design, providing reliable and high value solutions for a wide variety of applications and industries worldwide. The Silo Patrol SE incorporates significant advances in this field-proven approach to reliably monitoring the level of material in bins, silos and tanks up to 150ft (45.7m) in height. The Silo Patrol SE level sensor technology is suitable for use with a multiplicity of powders, granules, slurries and liquids, even in the most harsh and dynamic conditions.
The heart of the Silo Patrol SE level measurement system is the sensor itself. The Model SMU (Silo Monitoring Unit), incorporates technological advancements, requires no field adjustments and its robust design provides virtually maintenance-free operation. The SMU is suited for most any application and can be equipped with a variety of mounting flanges and plumb bobs.
The Silo Patrol SE system also offers the most sensor interface choices:
• RS-485 “smart” communications output
• 4-20mA analog output
• AC/DC Pulse output
The “smart” RS-485 output version SMU can be connected with either the multi-functional HMI2 Operator Interface Control Console or with SiloTrack™ PC-based Inventory Management Software that provides a flexible graphical interface for up to 128 sensors.
If a stand alone level detection sensor with analog output and no operator interface display is what you are looking for, the SMU is available in this type of configuration at an affordable purchase price. The SMU is available as a truly stand alone analog output transmitter, including automatic measurement initiation and a relay output.
The SMU pulse output sensor is typically used for connecting into older Monitor Technologies inventory systems. This output version retrofits and replaces the older CM3A/CM4 sensors and uses the AC pulse output to connect to the old system console. The DC pulse output also included with the latest SMU pulse output version can be used to connect into existing PLC systems
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Features:
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Industry-exclusive use of magnetic Hall effect sensor technology (patent pending) monitors swing-arm movement and improves overall application reliability and performance, even with the most difficult dynamic conditions
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Microcontroller technology provides “smart” motor control, high resolution/accuracy and consistent performance under the most challenging and dynamic conditions
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Lock-out input on all models to restrict sensor from initiating a measurement cycle (used to disable measurement during filling operations)
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Industry-exclusive electronics certified to international CE 1010 standard ensures compliance in shock hazard protection, electromagnetic noise interference and generation
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Complete electrical isolation between inputs/outputs and earth ground eliminates ground loops and ensures proper long-term operation and data communication
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Superior resolution of 0.01ft (0.12”; 3mm)
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Unique optical measuring system uses an amplification circuit to maximize signal-to-noise performance
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Relay output standard on analog output version provides contact closure based on user set level, sensor failure or measurement cycle operating
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Technical Data:
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SILO MONITORING UNIT (SMU)
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Power Requirements:
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115 VAC or 230 VAC, 50/60 Hz
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Power Consumption:
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6 VA continuous, 50 VA intermittent
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Altitude:
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6562ft (2000m) maximum
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Installation Category:
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II
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Pollution Degree:
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4, Suitable for indoor/outdoor use
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Process Temperature:
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-40° F to 300° F (-40° C to 149° C)
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Ambient Operating Temperature:
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-40° to +150°F (-40° to 65°C)
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Maximum Internal
Bin Temperature:
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Up to 300°F (149°C) with use of bare stainless steel cable
Up to 200°F (93°C) with use of stainless steel jacketed cables
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Measurement Range:
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150 feet maximum (45.7 m)
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Measurement Rate:
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1.0 ft./sec. (typical) (0.3 m/s)
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Accuracy:
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+/- 0.25% of distance reading
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Repeatability:
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0.1 ft. (30 mm)
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Resolution:
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1/100 ft. (0.12 inch; 3mm)
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Mounting:
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Freeze-Resistant "K" flange, 8" dia.
with 7" bolt circle
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Conduit Entry:
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Two 3/4" NPT
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Cable:
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1/16" nylon-jacketed (270lb/123kg tensile strength)
3/64" SS unjacketed (270lb/123kg tensile strength)
1/16" polyethylene-jacketed (270lb/123kg tensile strength)
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Output Signal:
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Standard "Smart":
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RS-485 half-duplex, isolated, proprietary protocol
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Pulse:
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1 pulse per 1/10' or dm, isolated, dry contact, selectable:
• 0.1ft - 12Hz, time-on 40mS, time-off 45mS
• dm - 4Hz, time-on 40mS, time-off 210mS
• AC Pulse - 70mA max@ 24-250VAC
• DC Pulse - 70mA max @ 24VDC
Relay Output - 5A @ 250VAC max, isolated, dry contact
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Analog:
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4-20 mA, reversible to 20- 4mA, isolated;
500Ohms maximum loop resistance
Relay Output-5A @ 250VAC max, isolated, dry contact
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Input Signal:
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Sound (Pulse, Analog)
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Vhi - 98-265VAC/VDC, 9.5K ohm input, isolated
Vlo -20-55VAC/VDC, 2.0K ohm input, isolated
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Lockout (All)
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Vhi - 98-265VAC/VDC, 9.5K ohm input, isolated
Vlo - 20-55VAC/VDC, 2.0K ohm input, isolated
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Wiring Distance("smart"):
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4,000 ft (1,220 m) max.
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Address Determination ("smart"):
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1-16 (switch selectable)
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Internal Display (Analog):
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2 lines, 8 characters per line, LCD
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| Enclosure: |
Cast aluminum with powder coat finish |
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SMU Weight (Approx.):
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42 lbs. (19.1 kg)
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Plumb Bob Weight (Approx.):
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2 lbs. (0.9 kg)
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| Ship Weight (Approx.): |
45 lbs. (20.4 kg) - Includes SMU, plumb bob, cable & carton |
Ship Carton Dimensions
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16 x 15 x 34 inches (406 X 381 X 864 mm) - Includes SMU, plumb bob & cable |
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Air Purge Connection:
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1/4" NPT
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Enclosure Rating:
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NEMA 4X; IP66
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Approvals:
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OL: CSA(US/C), CE Mark
HL: CSA(US/C) Class II, Div. 1, 2; Groups E,F,G
ATEX(Ex) II 1/2 Dc T 75°C
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