Aoip TC6621 Handheld Temperature Calibrator

AOIP TC6621 Temperature Calibrator Overview

The AOIP TC6621 is a versatile and robust handheld temperature calibrator. It serves as an essential tool for technicians and engineers involved in process control, HVAC, and calibration laboratories. It can accurately measure and simulate signals from various types of thermocouples and RTDs, as well as DC voltage and resistance, making it suitable for validating and calibrating a wide array of temperature sensors and associated instrumentation.

Product Detailed Description

• Measurement and Simulation Capabilities: The TC6621 is a multi-function calibrator capable of:

• Thermocouple (TC) Measurement & Simulation: Supports a wide range of thermocouple types (e.g., B, C, E, J, K, L, N, R, S, T, U) for both measuring temperature from TCs and simulating TC output signals to calibrate instruments. It includes cold junction compensation (CJC) for accurate readings.

• RTD (Resistance Temperature Detector) Measurement & Simulation: Measures resistance from RTDs and simulates RTD resistance values. It automatically detects 2, 3, or 4-wire RTD connections, ensuring high accuracy.

• DC Voltage Measurement & Simulation: Measures and generates DC voltage signals.

• Resistance Measurement & Simulation: Measures and simulates resistance.

• DC Current Measurement & Simulation: Measures and simulates DC current (mA).

• Accuracy and Stability: It is known for its high accuracy (e.g., 0.02% for voltage and resistance measurements) and a very low-temperature coefficient, ensuring stable performance across varying ambient temperatures.

• Display and Interface: Features a clear display to show measured/generated values and user-friendly navigation.

• Rugged Design: Built to withstand harsh industrial environments, with an IP54 rating for protection against dust and splashing water.

• Connectivity: Includes a USB connection for PC communication, enabling software upgrades and data acquisition with compatible software (e.g., DATACAL).

• Portability: Compact and lightweight, designed for field use.

Product Parameters

(Note: Specifications are approximate and based on available documentation. Always refer to the official AOIP TC6621 datasheet/manual for the most precise and up-to-date information.)

• Functions:

• DC Voltage: IN (100 mV, 80 mV), OUT (80 mV)

• Resistance: IN (400 Ohm, 3600 Ohm), OUT (400 Ohm, 3600 Ohm)

• DC Current: IN (100 mA), OUT (25 mA, active or passive loop)

• Thermocouples (IN/OUT): Types B, C, E, J, K, L, N, R, S, T, U (16 types in total)

• RTDs (IN/OUT): Types Pt, Ni, Cu (12 types in total)

• Accuracy (Typical):

• DC Voltage: 0.020% of reading + 3µV (for 80mV range)

• Resistance: 0.012% of reading + 10 mΩ (for 400 Ohm range)

• Thermocouples: 0.020% of reading + 0.35°C (CJC accuracy: ±0.3°C)

• Temperature Coefficient:

• Thermocouples: < 20ppm/°C (beyond reference domain)

• Resistance: < 7ppm/°C (beyond reference domain)

• Input/Output Features:

• RTD Connection: 4-pin round connector or 4 banana plugs (automatic 2, 3, or 4 wire detection).

• Thermocouple Connection: Miniature compensated connector.

• Current Simulation: Internal resistance < 1Ω.

• Power Supply: Internal rechargeable batteries (battery life up to 33 hours simulation, depends on usage).

• Display: Likely a segment LCD or similar, with backlighting for visibility.

• Dimensions (without sheath): 157 x 85 x 45 mm (6.18 x 3.35 x 1.77 inches)

• Weight: 306 g (approx. 0.67 lbs)

• Environmental Conditions:

• Operating Reference Domain: 23°C ± 5°C, 45% to 75% RH.

• Nominal Working Domain: -10°C to +50°C, 20% to 80% RH (non-condensing).

• Limit Working Domain: -10°C to +55°C, 10% to 80% RH (70% at 55°C).

• Storage Temperature: -30°C to +60°C (without batteries).

• Protection: IP54 (according to EN 60529).

• Standards Compliance:

• Electrical Safety: EN 61010.

• EMC: EN 61326.

• Connectivity: USB for PC connection (software upgrade and DATACAL application).

Product Advantages

• High Accuracy and Precision: Offers excellent accuracy across all measurement and simulation ranges, crucial for reliable calibration.

• Versatility (Multi-Function): Combines thermocouple, RTD, voltage, current, and resistance capabilities in one device, reducing the need for multiple calibrators.

• Robust and Portable: IP54 protection and compact design make it ideal for demanding field applications.

• User-Friendly: Intuitive interface and clear display facilitate ease of use.

• Automatic RTD Detection: Simplifies wiring and ensures correct measurement/simulation for 2, 3, or 4-wire RTDs.

• Low Temperature Coefficient: Ensures stable and accurate readings even when ambient temperature fluctuates.

• Long Battery Life: Provides extended operation time in the field, minimizing interruptions.

• PC Connectivity: Allows for data logging, calibration reporting, and firmware updates through dedicated software.

Precautions

• Read the Manual: Always consult the official AOIP TC6621 instruction manual before operation, especially for specific measurement/simulation procedures and safety guidelines.

• Correct Connections: Ensure all electrical and thermocouple/RTD connections are made correctly and securely to avoid damage to the calibrator or inaccurate readings. Pay attention to polarity for voltage/current.

• Cold Junction Compensation (CJC): When using thermocouples, understand how the calibrator handles CJC (internal vs. external) and its impact on accuracy.

• Environmental Conditions: Operate the calibrator within its specified temperature and humidity ranges to maintain accuracy and prolong its lifespan. Avoid extreme temperatures, moisture, and corrosive atmospheres.

• Battery Care: Follow guidelines for charging and storing the internal batteries to maximize their life. Remove batteries for long-term storage if specified.

• ESD Protection: Take necessary electrostatic discharge (ESD) precautions when handling the calibrator, especially when connecting/disconnecting sensors.

• Calibration Intervals: Ensure the calibrator itself is sent for regular calibration by an accredited laboratory to maintain its specified accuracy over time.

• Protective Sheath: Use the provided protective sheath/case to guard against physical damage and enhance its IP rating during field use.

Product Applications

The AOIP TC6621 is widely used in industries and applications that require precise temperature measurement, simulation, and calibration.

• Process Industries:

• Calibration and maintenance of temperature transmitters, controllers, and indicators in chemical plants, oil & gas facilities, power plants, etc.

• Troubleshooting temperature loops.

• HVAC Systems:

• Testing and calibrating temperature sensors in heating, ventilation, and air conditioning systems.

• Food and Beverage:

• Ensuring accurate temperature control in food processing and storage, critical for quality and safety.

• Pharmaceutical Industry:

• Validation of temperature mapping and control systems in cleanroom environments and production.

• Calibration Laboratories:

• As a reference standard for calibrating other temperature measurement devices.

• Manufacturing:

• Quality control and process monitoring where temperature is a critical parameter.

• Research & Development:

• Accurate temperature generation and measurement for testing and experimentation.

• Field Service:

• Portable and robust for on-site calibration and commissioning of temperature instrumentation.

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