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ADDITEL 875 - Dry Well Calibrator
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ADDITEL 875 – Dry Well Calibrator

The Additel 875 is an all-in-one temperature calibrator that integrates a high-precision heat source with an advanced measuring instrument, featuring an automated system to minimize measurement errors.

  • High Performance: Delivers exceptional thermal stability and uniform temperature distribution (both vertical and horizontal). It is portable, rugged, and reaches set temperatures rapidly.
  • PC (Process Calibrator) Model: More than just a heat source; it features built-in measurement capabilities (mA, Volt, RTD, TC), supports HART communication, and allows for immediate task documentation.
  • CYOR (Choose Your Own Range): Allows you to customize the accuracy calibration specifically for the temperature range you use most frequently.
  • Self-Calibration: Features an automated self-tuning system that uses an external reference probe to adjust the internal sensor, effectively correcting long-term Drift.
  • Short Probe Kit: Offers a specialized accessory kit for calibrating very short probes with high accuracy—a task that is typically difficult with standard dry wells.

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Additel 875 Dry Well Calibrator

If you are serious about portable temperature calibration, you know that a high-quality dry well must be more than just a stable heat source. The Additel 875 Series combines excellent performance in stability, radial and axial uniformity, and speed with rugged durability and portability.

Key Features:

  • Portable, Rugged, and Quick to Temperature: Designed for field use with fast heating and cooling times.
  • Metrology-Level Performance: Superior performance in stability, uniformity, accuracy, and minimizing Loading Effects.
  • Dual-Zone Control: Utilizes a two-zone heating system to ensure significantly better thermal uniformity across the block.
  • Color Touchscreen Display: Features a vibrant, intuitive touch interface for easy navigation.
  • Choose Your Own Range (CYOR): A unique option to define and optimize the calibrator’s accuracy for your specific working range.
  • ISO 17025-Accredited Calibration: Every unit includes an accredited calibration certificate with full measurement data.

Advanced Functionality:

  • Process Calibrator (PC) Option: This option turns the dry well into a complete workstation, providing a multi-channel readout for reference thermometers, RTDs, and TCs. It also handles task documentation and full HART Communication.
  • Full HART Field Communicator: Allows for the communication, configuration, and maintenance of HART-enabled transmitters directly from the calibrator.
  • Set Point Control by Reference: Allows the calibrator to control and stabilize its temperature based on the reading of an external reference probe rather than the internal sensor.
  • Self-Calibration Feature: An innovative function that uses an external reference PRT to automatically re-align the internal sensor’s calibration, ensuring long-term accuracy.

Specifications:

  • Temperature Range: -40°C to 660°C (depending on model)
Measurement Range Resistance per step :  -40°C to 660°C
Accuracy Maximum: ±0.18°C – ±0.5°C
Readings –
Logging Rate –
Battery –
Calibration Certificate Available Separately

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