Description
E53A4A1N GLI Power module
Product Dimensions:
Product Description
The GLI E53A4A1N is a high-performance, loop-powered (2-wire) transmitter used to measure the conductivity of liquids without direct electrode contact. This “electrodeless” design prevents common issues like sensor fouling, coating, or polarization, making it ideal for chemically aggressive or high-solids applications.
Product Parameters
| Parameter | Specification |
| Measurement Type | Electrodeless (Inductive) Conductivity |
| Output Signal | Isolated 4-20 mA DC (representing Conductivity or Temp) |
| Power Requirements | 12 – 30 V DC |
| Enclosure Material | NEMA 4X, IP66 (Polycarbonate) |
| Display | 2-line, 16-character LCD |
| Operating Temp | -20 to 60 °C (-4 to 140 °F) |
| Temperature Comp. | Automatic (Pt1000, Pt100, or NTC 300 $\Omega$) or Manual |
| Hazardous Area | Rated for Class I, Div 2, Groups A, B, C, D |
| Relative Humidity | 0 – 95% non-condensing |
Key Advantages
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Low Maintenance: Since the sensor does not touch the liquid directly (it uses magnetic induction), it is immune to electrode corrosion and fouling.
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User-Friendly Interface: Features a simple keypad and logical menu-guided operation for easy setup and calibration.
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High Durability: The NEMA 4X / IP66 enclosure ensures protection against salt spray, windblown dust, and rain.
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Security: Passcode-protected access prevents unauthorized personnel from changing configuration or calibration settings.
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Versatility: Supports multiple languages (English, French, German, Spanish) and offers flexible wiring (2, 3, or 4-wire arrangements).
Product Applications
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Chemical Processing: Monitoring concentration of acids and bases (e.g., $H_2SO_4$, $HCl$, $NaOH$).
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Water & Wastewater: Salinity monitoring, wastewater treatment, and cooling tower blowdown.
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Food & Beverage: Clean-in-Place (CIP) systems to detect interface between cleaning agents and water.
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Pulp & Paper: White/Black liquor concentration measurement.
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Metal Finishing: Pickling and plating bath control.
Important Precautions
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Installation: Ensure the transmitter is installed away from high-vibration areas and direct sunlight to prolong LCD life.
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Sensor Orientation: When installing the inductive sensor, ensure there is sufficient clearance from pipe walls to avoid “wall effects” on the magnetic field.
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Safety: Only qualified personnel should perform wiring. Always disconnect power before servicing.
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Calibration: For best accuracy, calibrate the system using a solution that matches the expected range of your process liquid.
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Storage: Avoid storing the unit in environments exceeding 70°C (158°F).
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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