Description
1056-02-25-38-HT Rosemount Controller module
Product Dimensions:
Product Description
The alphanumeric suffix defines the specific hardware and software features:
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1056: Model series (Intelligent Four-Wire Dual-Input Analyzer).
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02: Power: 20 to 30 VDC, 15 W (includes four programmable relays).
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25: Measurement 1: Toroidal Conductivity.
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38: Measurement 2: None (Single input configuration for the second slot).
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HT: Communication: HART® Digital Communication.
Product Parameters
| Feature | Specification |
| Power Supply | 24 VDC (20-30 VDC) |
| Inputs | Dual input capability (Sensor 1: Toroidal Conductivity; Sensor 2: Empty) |
| Outputs | Two 4-20 mA current outputs; HART® digital communication |
| Relays | Four (4) programmable alarm relays |
| Enclosure | Polycarbonate, NEMA 4X / IP65 (Weather-resistant) |
| Display | Large, monochromatic graphic LCD (128 x 96 pixels) |
| Temperature Range | 32 to 131 °F (0 to 55 °C) |
| Weight | Approx. 3 lbs (1.5 kg) |
Product Advantages
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High Durability (Toroidal Sensor): The “25” code indicates Toroidal (inductive) conductivity measurement. Unlike contacting sensors, toroidal sensors do not have metal electrodes in contact with the process, making them ideal for highly corrosive, fibrous, or oily liquids.
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Ease of Use: Features a large, easy-to-read display and “Quick Start” programming that automatically recognizes sensor boards upon installation.
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Reduced Cost per Loop: The modular design allows you to add a second sensor board later without replacing the entire transmitter.
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Digital Integration: The HT (HART) option allows for remote diagnostics and calibration via a HART handheld communicator or asset management software (AMS).
Key Applications
Because of the Toroidal Conductivity input (Code 25), this unit is specifically suited for:
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Chemical Processing: Monitoring concentration of acids, bases, and salts.
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Pulp & Paper: Black, green, and white liquor measurements.
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Wastewater Treatment: Monitoring high-salinity industrial effluent.
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Mining: Slurry density and chemical leaching processes.
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Food & Beverage: CIP (Clean-in-Place) solution concentration control.
Important Considerations (Precautions)
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Grounding: Ensure the instrument is properly grounded through a three-wire power source to avoid electrical noise interference.
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Cable Routing: Keep sensor cables away from high-voltage power lines to prevent signal distortion.
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Environment: While the enclosure is IP65, avoid direct high-pressure washdowns or extreme temperatures beyond 55°C (131°F).
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Configuration: Note that slot “38” is empty. If your process requires a second measurement (like pH or Oxygen) in the future, you will need to purchase a separate plug-in sensor board.
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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