Product Overview

The REED R5825 Loop Calibrator is a precision handheld instrument designed for modern process calibration applications. It supports source, measure and simulate milliamp loops with built-in 24 V loop supply, step and ramp outputs, and high accuracy—making it ideal for calibrating transmitters, sensors, and instrumentation in industrial automation environments.

Compact, robust and high functionality in one portable tool, the R5825 is especially suitable for instrumentation engineers, service technicians and maintenance professionals working in manufacturing plants, power utilities, automation systems and field service.

Key Features

• Provides mA sourcing, simulation and measurement for current loops
• Built-in 24 V loop power supply to power 2-wire transmitters while measuring
• Large easy-to-read multi-digit LCD display for clear readings
• Supports step and ramp output modes for advanced loop testing
• High-resolution display of signal and % of span for precision
• Lightweight and portable with protective holster and long battery life
• Ideal for verifying loop integrity, calibrating 4–20 mA transmitters, and maintenance of process instrumentation

Technical Specifications

Brand: REED Instruments
Model: R5825
Type: Loop Calibrator

Measurement / Sourcing Functions

• Current Range (Measure/Source): 0.000 to 22.000 mA
• Accuracy: Approx. ±0.02% of reading (measurement), ±0.05% of setting (sourcing)
• Resolution: 0.001 mA
• Voltage Measurement (loop check): 0.000 to 28.000 V DC
• Loop Power Supply: 24 V DC (for powering transmitters)

Output Modes

• Step output (fixed values)
• Ramp output (linear sweep)
• % of span simulation for 4–20 mA loops

General Specifications

• Display: High-resolution multi-digit LCD
• Battery: AA or rechargeable pack (depending variant)
• Auto shut-off: Yes (to preserve battery)
• Dimensions: Approx. 180 mm × 90 mm × 47 mm
• Weight: Approx. 500 g
• Operating Temperature: ~0 °C to +50 °C
• Humidity: Up to 85% non-condensing

Included Accessories

• Test leads with alligator clips
• Protective holster
• Batteries
• User manual

Applications

• Calibration of 4–20 mA current loops and transmitters
• Loop simulation and testing in plant automation
• Routine maintenance of control instrumentation in manufacturing, power, chemical, water & wastewater industries
• Verification of loop supply voltage and signal integrity
• Field service work for instrumentation and control engineers

Why Buy from FieldInstruments.lk?

• 100% genuine REED Instruments equipment
• Competitive pricing and fast delivery across Sri Lanka
• Local technical support for calibration, instrument selection and setup
• After-sales service including test leads, accessories and calibration guidance
• Trusted supplier for industrial instrumentation and automation tools in Sri Lanka

The REED R5825 Loop Calibrator offers a reliable, accurate and robust solution for professionals needing high-precision loop calibration in field or workshop environments.

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Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk