The Silo Monitoring System from OPI StorMax

StorMax Digital Grain Temperature Cables

Multi-sensor grain temperature cables are at the heart of all silo monitoring systems. From one centre cable in smaller bins, to multiple cables in bins larger than 24' (8m) diameter, temperature profiles are taken throughout the bin to spot trends over time. With the OPI silo monitoring system, small increases suggest the need for closer observation. For aeration management and a grain moisture check, regular monitoring helps decide when and for how long to run fans to control temperature for safe storage. For NAD (natural air drying), grain moisture can be monitored by tracking the temperature drop (caused by evaporative cooling) as the front moves through the bin.

Silo Monitoring Systems Come in Two Styles

Retractable cable system comes with two suspension styles, ANGL for external mounting and HANG for hanging from internal structure.

The Stormax retractable grain temperature cable is a two-part system, consisting of an outer "tube" and an inner, removable "sensing element". Advantages of this system include:

• Reliability
• Serviceability, even in a full bin!
• Flexibility to insert T/C and other sensor types into the StorMax tube system.

Grain Temperature Cables

• Two part Retractable Cable System
• Outer tube
• Inner Sensing Element
• Increased reliability, sensor protected inside tube
• Simple replacement, whether bin empty or full.
• One year warranty

Cables come in three weights, Heavy-Duty(+30m/+100'), Commercial-Duty(15-30m/50-100'), and Medium-Duty (0-15m/0-50').

Silo Monitoring System - Uni-cable Binside Readout

What is Digital Technology?

• Each sensor is a miniature microprocessor
• Digital translation and address inside each sensor
• Multiple sensors per cable and multiple cables per bin can be interconnected to form one simple 2-wire connection

Silo Monitoring System - Multi-cable Binside Readout

Digital Technology

StorMax/Thermocouple Comparison

StorMax No wire termination necessary, simple installation and service Single readout point Accuracy of +/- 1.0°F Different kinds of sensors and controls interconnected on same line

Thermocouple Rats nest of wires, requires trained technician to terminate/service One plug per cable Accuracy of +/- 5.0°F Dead-end for system integration

Silo Monitoring System - 3-Wire Binside Readout

Retractable Cables

StorMax/Thermocouple Comparison

StorMax Increased reliability with sensor floating inside tube High quality finish Simple service by customer even when bin is full Flexible; can put other sensing, I.e. T/C inside tube Future expansion; can put other technology inside tube

Thermocouple Sensor failure common Low quality; electrical tape, PVC jacket (panty hose) Service required by trained technician, expensive, very involved, potential down time up to one to two years T/C only No future

Temperature Cable Specs

	Unit	FDS2	MDR2	CDR2	HDR2	SE3
Cross Section (Actual Size)
Size (LxW)	inch	0.41 x 0.15	0.67 x 0.47	0.79 x 0.47	0.87 x 0.47	0.18 Ø
	mm	10 x 4	17 x 12	20 x 12	22 x 12	4.5 Ø
Steel Construction	inch	2 x 3/32	2 x 1/8	2 x 3/16	2 x 7/32	-
Tensile Strength	lg	1840	3400	8400	11200	-
	kg	834	1542	3800	5080	-
Theoretical Load ***	lb/ft	7.4	16.0	18.5	20.0	-
	kg/m	13.2	23.8	27.5	29.7	-
Maximum Tie-down	lg	460	850	2100	2800	-
	kg	210	385	950	1270	-
Application Range	feet	0-50	0-50	50-100	> 100	-
	m	0-15	0-15	15-30	> 30	All XDR2 Tubes
Digital
OPI-ONE						-
T/C						-
Thermistor						-