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Item #:
12438125
TH77 Process Multimeter Calibrator Meter Multifunctional DMM,250 HART Loop Resistance,24V Loop Power Supply and Measuring the Current
Item #:
12438125
ANG 233
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What Stands Out
Multifunctional Design
This versatile calibrator combines multiple functionalities, including multimeter, calibrator, and loop power supply, ensuring comprehensive solution for technicians to test and calibrate various electrical components.
HART Loop Support
Equipped with 250Ω HART loop resistance, it efficiently interfaces with HART-enabled devices, facilitating seamless integration and communication for better performance and data accuracy in industrial applications.
Reliable Power Supply
Offers a robust 24V loop power supply, enabling users to power devices while simultaneously measuring currents, streamlining workflow and improving efficiency for maintenance and calibration tasks.
Product Details
| Power Source | Corded Electric |
| Minimum Operating Voltage | 0.01 Volts |
| Measurement Type | Multimeter |
| Compatible Devices | Any devices with electrical components |
| Style Name | Digital |
| Color | ['Blue', 'Black'] |
| Item Weight | 14.08 ounces (399.17 grams) |
| Brand Name | TestHelper |
| Model | TH77 |
| UPC | 889284088375 |
| Manufacturer | TestHelper |
| Part Number | TH77 |
| Unit Count | 1.0 Count |
| Brand | TestHelper |
| Style | Digital |
Who Should Buy?
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Industrial Technicians
Ideal for technicians who require precise measurements in industrial environments for calibration and maintenance of equipment.
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Electrical Engineers
Great for engineers who need a versatile multi-meter for testing and evaluating electrical and loop circuits.
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Field Service Personnel
Perfect for field service professionals who frequently check and troubleshoot current loops in various applications.
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Casual Users
Not suitable for home users looking for a simple and basic multimeter for occasional household use.
Product Description
TH77 Process Multimeter Calibrator Meter Multifunctional DMM,250 HART Loop Resistance,24V Loop Power Supply and Measuring the Current
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What features does the TH77 Process Multimeter Calibrator offer?
Answer: The TH77 Process Multimeter Calibrator is designed with multiple features including HART loop resistance measurement, a 24V loop power supply, and functionality to measure current accurately. This versatility makes it ideal for industrial applications where precise calibration and troubleshooting of process instruments are needed. For instance, technicians can use it to maintain control systems by ensuring that transmitters and sensors are correctly calibrated, which enhances operational efficiency. -
Question:
How can the TH77 Multimeter Calibrator be used in troubleshooting?
Answer: The TH77 Multimeter Calibrator can be an invaluable tool in troubleshooting various electrical and process control issues. By using its loop resistance measurement capabilities, technicians can diagnose problems within signal loops, while the current measuring functionality helps identify faulty components. For example, if a pressure transmitter is failing to provide accurate readings, the TH77 can check and simulate parameters to determine the exact issue and rectify it swiftly. -
Question:
Is the TH77 suitable for both AC and DC measurements?
Answer: Yes, the TH77 Process Multimeter Calibrator is capable of measuring both AC and DC signals, allowing for flexible applications across different environments. This capability is particularly useful in diverse industrial settings where both types of signals might be present. Technicians can rely on it for calibrating a wide range of process instruments that operate under varying conditions. -
Question:
Can the TH77 Multimeter Calibrator be used in hazardous environments?
Answer: The TH77 is designed for industrial use and can be safely employed in many environments, including those with potential hazards. However, users should always refer to the specific safety ratings and guidelines outlined in the product documentation. This ensures adherence to safety protocols while performing tasks such as calibration and maintenance of instruments in industries like oil and gas, where safety is paramount. -
Question:
What is the significance of the HART protocol in the TH77 Multimeter Calibrator?
Answer: The HART protocol is significant for enabling digital communication between smart field instruments and the TH77 Calibrator. This allows users to not only calibrate but also to configure and troubleshoot HART-enabled devices directly. The integration of HART capabilities simplifies communication with devices, saving time and improving accuracy in process control tasks, which is crucial in maintaining system integrity in automated industries. -
Question:
What types of industries benefit from using the TH77 Process Multimeter Calibrator?
Answer: Industries such as manufacturing, oil and gas, pharmaceuticals, and food processing can greatly benefit from using the TH77 Process Multimeter Calibrator. Its multifunctional capabilities streamline calibration processes which ensures instruments function optimally. For instance, in a pharmaceutical setting, regular calibration helps maintain strict quality standards, while in manufacturing, it can enhance machine performance and reduce downtime. -
Question:
How does the TH77 help in measuring loop power supply?
Answer: The TH77 features a built-in 24V loop power supply that facilitates the measurement and simulation of loop-powered devices. This is particularly useful for testing and calibrating devices without needing an external power source. Technicians can use it to isolate issues in a loop with ease, making it an essential tool for anyone working with loop-powered instrumentation in process control. -
Question:
What is the maximum load resistance the TH77 can handle?
Answer: The TH77 Process Multimeter Calibrator can handle up to 250Ω of load resistance, making it suitable for various industrial applications. This high load capacity allows for testing different types of field devices effectively, ensuring that even complex systems can be calibrated and troubleshot without issues. It’s particularly beneficial when working with large transmitters or in applications where high resistance is encountered. -
Question:
Can the TH77 be used for educational purposes?
Answer: Absolutely! The TH77 Process Multimeter Calibrator is an excellent educational tool for those studying electronics or engineering. It provides hands-on experience in measuring and calibrating field instruments, which is invaluable for students. Educational institutions can use it in labs to demonstrate principles of electrical measurements and process control systems, enhancing the learning experience through practical application. -
Question:
Where can I buy the TH77 Process Multimeter Calibrator in Sint Maarten?
Answer: You can purchase the TH77 Process Multimeter Calibrator from Ubuy. Ubuy offers a user-friendly shopping experience with a wide selection of electronic instruments including this multifunctional DMM. By choosing Ubuy, you can easily find the product along with detailed specifications and customer reviews to help you make an informed decision.
TestHelper Multi Testers Editorial Review
The TestHelper TH77 Process Multimeter Calibrator Meter is a versatile and multifunctional device designed for use in a variety of settings. With its 250Ω HART Loop Resistance, 24V Loop Power Supply, and ability to measure current, this multimeter is ideal for use in industrial and manufacturing settings. Customers appreciate the device's ease of use and the variety of functions it offers, allowing them to easily and accurately perform a range of tasks. One downside to this multimeter is that it does not simulate a 0-10V signal, which may be a limitation for some users. However, it does simulate a 4-20 ma signal, providing flexibility and accuracy when measuring current.
Customer Reviews & Ratings
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Pros
- Versatile and multifunctional
- 250Ω HART Loop Resistance and 24V Loop Power Supply
- Easy to use
- Accurate measurements
- Simulates 4-20 ma signal
Cons
- Does not simulate a 0-10V signal
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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ANG 233
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Features & Benefits
- DC voltage Range: ±51V;Highest resolution:10mV;Basic accuracy:0.5%
- AC voltage Range: 510V;Highest resolution:100mV;Basic accuracy:1.5%
- Resistance Range: 5kΩ;Highest resolution:1Ω;Basic accuracy:0.5%
- DC current Range: ±22mA;Highest resolution:1uA;Basic accuracy:0.2%
- Diode test Continuity beeper Data hold
- Loop power: 24V Loop detection
- Built in 250 Ω HART loop resistance
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