Permanent Magnetic Level Indicators
Better Performance by Design
By innovative design, the permanent magnetic level indicator isBetter Performance by Design
- More Reliable for accurate signaling
- More Durable for longer operational life
- More Dependable under harsh operating conditions - More Energy efficient
- Less Maintenance
- More Adaptable installation
Features & Advantages: Permanent Magnetic Level Indicator vs. Rotary-Resistance Level Indicator
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Permanent Magnetic Level Indicator | Rotary-Resistance Level Indicator |
| Design | Driven by electromagnets; less moving parts; no mechanical malfunctions; no need of maintenance. | Driven by the motor; more moving parts; potential mechanical malfunctions; need lots of maintenance. |
| Signal Output | Output by the electronic switch with delay function; very energy efficient. | Output by mechanical switch without delay function; high energy consumption. |
| Sealability | Static seal; performs well in high humidity, high pressure, and high-temperature environment; Higher IP rating up to IP67; waterproof, dustproof and shockproof. | Motive seal; Performance suffers in high humidity, high pressure, and high-temperature environment. Lower IP rating as of IP54; Not waterproof, dustproof and shockproof. |
| Transport & Installation | Light and easy to transport; easy and adaptable installation; | Heavy and not easy to transport; complex installation and the height is not adjustable; |
| Applicable | Wide applications: Not limited by material density; No need for sensitivity testing/adjustment. Able to detect the liquid level. | Limited applications: material density has to be higher than a certain threshold; Need for sensitivity testing/adjustment; Not able to detect liquid level. |
| Wiring | Flexibility of wiring; with two wire product. | Inflexibility of wiring; without two wire product. |
Features & Advantages: Permanent Magnetic Level Indicator vs RF Capacitance Level Indicator
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Permanent Magnetic Level Indicator | RF Capacitance Level Indicator |
| Design | Electromechanical design; Super reliable; Self-cleans to some extent and requires no maintenance | Electronic design; False signals if the materials wrap up; Requires lots of maintenance |
| Enclosure | Stainless enclosure; Durable | Plastic or Brass enclosure; Not Durable |
| Performance under a tough environment | Performs well in high humidity, high pressure, and high-temperature environment; Higher IP rating up to IP67; waterproof and dustproof | Performance suffers in high humidity, high pressure, and high temperature; Lower IP rating as of IP54; Not waterproof and dustproof |
| Applicable | Widely applicable: Not sensitive to the dielectric constant of different materials; No need for testing/adjustment | Limited applicable: Not suitable to detect low dielectric constant materials; Sensitivity needs to be adjusted |
Permanent Magnetic Level Indicator
Huge Cost Savings
Huge Cost Savings
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Permanent Magnetic Level Indicator | Rotary-Resistance Level Indicator |
| Equipment Manufacturers (Savings to you) | Market Price | The average price of $200 | The price range of $200-$700. Take an average price of $250 for comparison. |
| Shipping Cost | Each indicator weight about 250g. Take the average shipping cost of $5/g. | Each indicator may weight 2.5kg. Average shipping cost can be $20. | |
| Lifetime | Ten years | Four years | |
| Annual Installation Cost | Consider that each one takes 0.5 hours to install at an hourly rate of $100, installation costs per year is $5 (0.5-hour x $100 per hour / ten years). | Consider that each one takes 2 hours to install at an hourly rate of $100, installation costs per year is $50 (2-hour x $100 per hour / 4 years). | |
| Total Annual Usage | Assume 3,600 units | Assume 3,600 units | |
| Total Annual Cost | (($200+$5)/10 + $5) x 3600 ≈ $92k | (($250+$20)/4 + $50) x 3600 ≈ $423k | |
| Total Annual Savings | $423k - $92k ≈ $330k. If we consider maintenance, cost savings will be even higher. | ||
| Equipment End Users (Savings to your clients) | Annual Energy Cost | 0.2W/hr x 24hrs x 365days /1000 = 1.75kwh | 5W/hr x 24hrs x 365days /1000 =43.8kwh |
| Assume electricity price of $0.25/kw, annual energy cost = $0.44 per year | Assume electricity price of $0.25/kw, annual energy cost = $10.95 per year | ||
| Malfunction rate | Almost no false detection. Assumes that each unit will malfunction once in a lifetime. Annual malfunction times = 1/10years = 0.1. | False detection occasionally. Assumes that each unit will malfunction twice over a lifetime. Annual malfunction times = 2/4years = 0.5. | |
| Loss due to malfunction | Assumes that each malfunction event may incur a loss of $500, annual loss due to malfunction per unit will be $50 (=$500 x 0.1). | Assumes that each malfunction event may incur a loss of $500, annual loss due to malfunction per unit will be $250 (=$500 x 0.5). | |
| Annual Usage | Assume 200 units per client | Assume 200 units per client | |
| Total Annual Cost | ($50+$0.44) x 200 ≈ $10k | ($250+$10.95) x 200 ≈ $52k | |
| Total Annual Cost Savings | $52k - $10k = $42k. This is the average savings to each of your clients by using our better technology, without taking into consideration any price decrease benefits. | ||
Permanent Magnetic Level Indicator
Huge Cost Savings
Huge Cost Savings
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Permanent Magnetic Level Indicator | RF Capacitance Level Indicator |
| Equipment Manufacturers | Market Price | The average price of $200 | The price range of $50-$300. Take an average price of $150 for comparison. |
| Lifetime | Ten years | Four years | |
| Annual Installation Cost | Consider that each one takes 0.5 hours to install at an hourly rate of $100, installation costs per year is $5 (0.5-hour x $100 per hour / ten years). | Consider that each one takes 1 hour to install at an hourly rate of $100, installation costs per year is $25 (1-hour x $100 per hour / four years). | |
| Total Annual Usage | Assume 3,600 units | Assume 3,600 units | |
| Total Annual Cost | ($200/10 + $5) x 3600 ≈ $92k | ($150/4 + $25) x 3600 ≈ $243k | |
| Total Annual Savings | $243k - $92k ≈ $151k. If we consider maintenance, cost savings will be even higher. | ||
| Malfunction rate | Almost no false detection. Assumes that each unit will malfunction once in a lifetime. Annual malfunction times = 1/10years = 0.1. | False detection occasionally. Assumes that each unit will malfunction four times over a lifetime. Annual malfunction times = 4/4years = 1. | |
| Loss due to malfunction | Assumes that each malfunction event may incur a loss of $500, annual loss due to malfunction per unit will be $50 (=$500 x 0.1). | Assumes that each malfunction event may incur a loss of $500, annual loss due to malfunction per unit will be $500 (=$500 x 1). | |
| Annual Usage | Assume 200 units per client | Assume 200 units per client | |
| Total Annual Cost | $50 x 200 ≈ $10k | $500 x 200 ≈ $100k | |
| Total Annual Savings | $100k - $10k = $90k. This is the average savings to each of your clients by using our better technology, without taking into consideration any price decrease benefits. | ||