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The Fieldpiece SM482V is an advanced wireless 4-port SMAN refrigerant manifold designed for comprehensive HVAC and Refrigeration diagnostics and service. This digital manifold accurately measures low and high pressure, and calculates superheat and subcooling. It features protected thermocouple jacks for temperature measurements and integrates with Job Link Psychrometer probes for enhanced functionality. The device is built for durability with a heavy-duty casing and IP55 dust and water resistance.

Фигура 1: Отпред view of the Fieldpiece SM482V Wireless 4-Port SMAN Refrigerant Manifold, showing the digital display and valve controls.
Ключови характеристики
- Accurate measurement of low and high pressure, superheat, and subcooling.
- Integrated vacuum gauge for precise vacuum measurements.
- Protected thermocouple jacks for reliable pipe and outdoor temperature readings.
- Four-valve manifold design for versatile system connections.
- Wireless connectivity to Job Link Psychrometer probes and Job Link System App.
- Data logging capability for up to 168 hours of continuous operation across 9 jobs.
- Temperature compensated system tightness test for leak detection.
- Durable construction with IP55 dust and water resistance.
- Pre-loaded with over 70 refrigerants, including A2Ls.
Настройка и първоначална употреба
- Инсталиране на батерията: Open the battery compartment on the rear of the unit. Insert 6 AA batteries, ensuring correct polarity. Close the compartment securely.
- Включване: Press the power button to turn on the manifold. The display will illuminate and show initial readings.
- Избор на хладилен агент: Use the "SELECT" button to cycle through the pre-loaded refrigerants. Choose the appropriate refrigerant for your application.
- Zero Pressure: Before connecting to a system, ensure all valves are closed and press the "ZERO PRESSURE" button to calibrate the pressure sensors.
- Свързване на сонди: Connect thermocouple pipe clamps to the protected jacks for temperature measurements. For wireless integration, ensure Job Link Psychrometer probes are paired according to their respective manuals.

Figure 2: The SM482V manifold being connected to an HVAC system, demonstrating hose attachment points.
Инструкция за работа
Pressure and Temperature Measurement
Connect the manifold hoses to the high and low-pressure ports of the HVAC/R system. Open the appropriate valves on the manifold to read system pressures. The display will show real-time pressure readings, along with superheat and subcooling calculations based on connected temperature probes.
Vacuum Measurement
To measure vacuum, connect the vacuum pump to the manifold's vacuum port. Open the vacuum valve and start the pump. The integrated micron gauge will display the vacuum level. Monitor the reading until the desired vacuum is achieved.
System Tightness Test (Nitrogen Pressure Test)
The SM482V features a temperature-compensated nitrogen pressure test. Connect a nitrogen tank to the system via the manifold. Press the "N2 TEST" button to initiate the test. The manifold will record the initial pressure and monitor for pressure differential (Pdif) over time, indicating potential leaks. Press "STOP/EXIT" to end the test.
Регистриране на данни
The manifold can log up to 168 hours of data. To start data logging, refer to the specific instructions in the full user manual or the Job Link System App. Logged data can be retrieved and analyzed via the Job Link App.

Figure 3: An HVAC technician using the Fieldpiece SM482V on an outdoor air conditioning unit.
Поддръжка
- Почистване: Избършете устройството с рекламаamp плат. Не използвайте абразивни почистващи препарати или разтворители.
- Смяна на батерията: Replace batteries when the low battery indicator appears on the display. Always use 6 new AA alkaline batteries.
- Hose and Gasket Inspection: Regularly inspect hoses and manifold gaskets for wear and tear. Replace damaged components to ensure accurate readings and prevent leaks.
- Съхранение: Store the manifold in its soft case in a dry environment, away from extreme temperatures.
- Актуализации на фърмуера: Periodically check the Fieldpiece website or Job Link App for firmware updates to ensure optimal performance and access to new features.

Figure 4: The Fieldpiece SM482V manifold alongside its protective soft case.
Отстраняване на неизправности
| проблем | Възможна причина | Решение |
|---|---|---|
| Неточни показания за налягане | Uncalibrated sensors, leaky hoses/gaskets, incorrect refrigerant selected. | Perform "ZERO PRESSURE" calibration. Inspect and replace worn hoses or gaskets. Verify correct refrigerant is selected. |
| Vacuum Reading Fluctuations | Moisture in system, internal manifold leak, contaminated hoses. | Ensure system is thoroughly evacuated. Check manifold for internal leaks (refer to service manual). Purge hoses with nitrogen before vacuuming. |
| Дисплеят не се включва | Изтощени батерии, неправилно поставяне на батерии. | Replace batteries with new ones. Check battery polarity. |
| Проблеми с безжичната връзка | Out of range, interference, un-paired probes. | Ensure manifold and probes are within range (up to 1000ft line of sight). Reduce interference sources. Re-pair probes according to their instructions. |
Спецификации
| Характеристика | детайл |
|---|---|
| Модел | SM482V |
| Тегло на артикула | 5.79 паунда (2.63 кг) |
| Размери на продукта (Д x Ш x В) | 5 x 10.25 x 11.25 инча (12.7 x 26.0 x 28.6 см) |
| Материал | ABS пластмаса |
| Източник на захранване | 6 AA батерии |
| Живот на батерията | 405 hours (with backlight and wireless OFF) |
| Дисплей | 5" (12.7 cm) LCD w/ backlight |
| Безжичен обхват | 1000' (305 m) line of sight |
| Maximum Manifold Pressure | 870 psig (6000 kPa) |
| Порт за вакуум | 3/8" for fast evacuations |
| Refrigerant Recovery/Charging Port | 1/4" |
| Suction Line and Liquid Line Ports | 1/4" |
| Степен на защита от проникване | IP55 (Dust/Water Resistance) |
| Работна среда | 14° to 122° F (-10° to 50° C) at <75% RH |
| Среда за съхранение | -4° to 140° F (-20° to 60° C) at <80% RH (w/o batteries) |
| Порт за данни | USB-C for extracting data logs and updating firmware |

Figure 5: Detailed specifications table comparing SM382V and SM482V models.
Гаранционна информация
The Fieldpiece SM482V Wireless 4-Port SMAN Refrigerant Manifold comes with a 1 години ограничена гаранция from the date of purchase. This warranty covers defects in materials and workmanship under normal use. For detailed warranty terms, conditions, and limitations, please refer to the official warranty document included with your product or visit the Fieldpiece official webсайт.
Забележка: The warranty does not cover damage caused by misuse, accident, unauthorized modification, neglect, or improper operation.
Поддръжка и информация за контакт
For technical assistance, product inquiries, or warranty claims, please contact Fieldpiece customer support through the following channels:
- Официален Webсайт: Посетете Магазин за полеви материали в Amazon за информация за продукта, ЧЗВ и ресурси за поддръжка.
- производител: Полеви инструменти
- Онлайн ресурси: Check for updated manuals, firmware, and troubleshooting guides on the official Fieldpiece webсайт.
When contacting support, please have your product model number (SM482V) and purchase date available.