Description
Mastercool – Digital Vacuum Gauge – Handheld Vacuum Gauge for HVAC/R Systems
Brief Overview:
The Mastercool Digital Vacuum Gauge (Part/Code: MC98061) is a professional-grade handheld tool designed for HVAC/R technicians to ensure deep vacuum levels in systems. Unlike traditional handheld units, this vacuum gauge uses thermocouple technology for superior accuracy and durability, making it ideal for fieldwork. With a self-calibration feature and a light sensor indicator, this gauge allows technicians to continue other tasks while monitoring the target vacuum level. The digital display and advanced features make it an essential tool for accurate vacuum readings in refrigeration and air conditioning systems.
Key Features:
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Thermocouple Sensor – Offers greater accuracy and durability compared to thermistor sensors.
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Self-Calibration – Ensures accurate readings in the field, even in harsh conditions.
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Light Sensor Indicator – Signals when the target vacuum is reached, allowing for multitasking.
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Versatile Vacuum Units – Displays readings in Micron, Torr, mTorr, mmHg, mBar, Pa.
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Fast Response Time – Quick 250 mSec response time for efficient monitoring.
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Durable Design – Oil-resistant sensor ideal for field conditions.
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Portable – Handheld unit packaged in a blow-molded case for easy storage and transport.
Specifications:
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Response Time: 250 mSec.
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Sensor Cable: Spiral cable, 6.5 feet (2.6 meters) long.
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Sensor Type: Thermocouple.
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Connection Fitting: 1/4” flare female adapter.
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Operating Temperature: 32 to 120ºF (0 to 45ºC).
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Power: 9V DC battery (AC/DC Adapter Optional).
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Battery Life: 36 hours.
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Accuracy:
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ATM-1000 Microns: ±10% of reading.
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1000–100 Microns: ±7% of reading.
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100–1 Micron: ±5% of reading.
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Low Battery Indicator: Special icon on LCD.
Available Options:
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MC98061 – Digital Vacuum Gauge in a blow-molded case.
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98061-C – Digital Vacuum Gauge in a clam shell packaging.
Optional Accessories:
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98061-SENSOR – Replacement Sensor.
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99334-110 – 110V AC/DC Adapter.
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99333 – 1/4 FL-M x 1/4 FL-M x 1/4 FL-F Tee



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