The BLACKMAX Digital Manifold Series, including MD50, MD50HE, MD50VHE (2-valve series), and MD100, MD100OHE, MD100VHE (4-valve series), are advanced electronic measurement tools designed for HVAC/R professionals. These digital manifolds combine the latest manifold design with electronic measurement features, housed in a rugged nylon plastic casing with a durable elastomeric keypad and a large, backlit LCD display.
Function Description:
The BLACKMAX digital manifolds are used for various service and test procedures on AC systems. They provide accurate measurements of pressure, vacuum, and temperature, enabling technicians to perform tasks such as refrigerant recovery, evacuation, and charging. Key functions include:
- Pressure Measurement: Displays high and low side working pressures in various units (Psig, kPa, Mpa, bar, KgCm2).
- Temperature Measurement: Displays high and low side working temperatures, Superheat (SH), Subcool (SC), and Saturation temperatures (VSAT, LSAT). Thermistor sensors (MDXCP, optional) can be attached to pipes for true temperature readings, improving SH/SC calculations.
- Vacuum Measurement: When used with the optional MDXVG Remote Vacuum Accessory, the manifold functions as an accurate vacrometer, displaying vacuum levels in microns or inches of mercury (inHg).
- Pressure Hold Test: Determines if a large leak exists in a system by monitoring pressure over a settable duration.
- Vacuum Hold Test: Assesses the integrity of a system's seal by monitoring vacuum levels over a settable duration.
- Refrigerant Management: Allows selection from 93 pre-programmed refrigerants, with quick access to 5 "favorite" refrigerants.
- Unit Configuration: Users can customize temperature, pressure, and vacuum units of measure.
- Automatic Power Off (APO): A configurable feature to conserve battery power by automatically turning off the manifold after a period of inactivity.
Important Technical Specifications:
- Pressure Range: -14.7 to 800.0 PSIG (-1.0 to 55 bar) for both high and low sides.
- Pressure Accuracy: +/- 1% of reading or +/- 0.5 PSIG (+/- 0.05 bar).
- Pressure Resolution: 0.5 PSIG (0.05 bar).
- Burst Pressure: 1500.0 PSIG (103.4 bar).
- Temperature Range: -58.0 °F to 302 °F (-50 °C to 150°C) for both high and low sides.
- Temperature Accuracy: +/- 0.36 °F (+/- 0.2°C).
- Vacuum Indication Accuracy: +/- 10 microns (with MDXVG accessory).
- SH, SC, and Saturation Temperature Accuracy: +/- 0.5°F (+/- 0.3°C).
- Working Temperature: -4.0 °F to 122°F (-20°C to 50°C).
- Working RH Range: 0% to 100% non-condensing.
- Stored Refrigerants: 93.
- APO: 10 minutes (user-configurable).
- Dimensions (L x H x W):
- MD100: 8.1" x 3.5" x 7.0" (20.5 cm x 8.9 cm x 17.8 cm).
- MD50: 8.1" x 2.5" x 7.0" (20.5 cm x 6.4 cm x 17.8 cm).
- Weight:
- MD100: 3.3 lb. (1.5 kg).
- MD50: 3.0 lb. (1.4 kg).
- Battery Life (4 industrial alkaline AA batteries):
- Backlight full ON: 25+ hrs. continuous duty.
- Backlight full OFF: 60+ hrs. continuous duty.
- Battery Life (4 rechargeable NiMH AA batteries):
- Backlight full ON: 20+ hrs. continuous duty from full charge.
- Backlight full OFF: 50+ hrs. continuous duty from full charge.
MDXVG Vacuum Gauge Accessory Specifications:
- Sensor Type: Self-heated thermistor bridge with integral temperature compensation from 0 to 50 °C (32 to 122 °F).
- Auto-Ranging Scales:
- 0 to 99 microns: 1 micron resolution.
- 100 to 990 microns: 10 micron resolution.
- 1000 to 9900 microns: 20 micron resolution.
- 10000 to 25000 microns: 50 micron resolution.
- Above 25000 microns: Displays low side pressure reading in selected unit.
- Accuracy: +/- 10% of reading or +/- 10 microns, whichever is greater.
- Operating Temperature Range:
- Compensated: 0°C to 50°C (32°F to 122°F).
- Non-compensated: Add +/- 0.5% of reading error for every °C outside compensated range (-10 to 0°C / 14 to 32°F).
- Operating and Storage Humidity: 0 to 95%, non-condensing.
- Storage Temperature: -40 to 85°C (-40 to 185°F).
MDXBK Charger Accessory Specifications:
- Operating Temperature Range: 32°F to 122°F (0°C to 50°C).
- Operating and Storage Humidity: 0-95%.
- Storage Temperature: -40°F to 185°F (-40 to 85°C).
- Power Source: 100-240VAC input, 9VDC 2.0 amp maximum output.
- Battery Type: AA size, NiMH rechargeable.
- Approximate Battery Life: 20,000 to 50,000 hours*.
- Rechargeable Battery Cycle Life: 1000 recharges *based on usage with or without the LCD backlight energized.
Usage Features:
- Intuitive Controls: Features an elastomeric keypad with clearly labeled buttons for ON/OFF, SET, REF (refrigerant), MODE, SH/SC (Superheat/Subcool), TEST, and CLR (Clear).
- Backlight: A dedicated BACKLIGHT button to illuminate the LCD display for visibility in various lighting conditions.
- Valves: MD50 series has High Side and Low Side valves, plus a Center Port. MD100 series adds a Refrigerant Valve and a Vacuum Valve for enhanced control.
- Sightglass: Allows monitoring of refrigerant flow.
- Swivel Hook: A heavy-duty 360° swivel hook for convenient hanging.
- Hose Hangers: For securing unused hoses.
- Thermistor Sensors: Connection points for two thermistor sensors to measure pipe temperatures for accurate SH/SC calculations.
- Programmable Settings: Users can program default refrigerants, temperature units (°F or °C), pressure units (Psig, kPa, Mpa, bar, KgCm2), and vacuum units (microns or inHg).
- Error Indicators: The display shows specific error messages (oP, SP, Err) to indicate sensor issues or internal malfunctions.
Maintenance Features:
- Battery Compartment: Easily accessible compartment for 4 AA batteries. Rechargeable NiMH batteries are recommended, and an optional MDXBK Charger Kit is available.
- Zero Pressure Setting: The manifold should be opened to the atmosphere and zeroed using the [CLR] button before each working session to ensure accuracy.
- MDXVG Sensor Cleaning: The MDXVG vacuum gauge accessory sensor can be cleaned by flushing with 100% denatured alcohol to remove dust and oil contaminants. It is crucial to avoid using cotton swabs or similar objects that could damage the sensor. After cleaning, all ports should be opened to allow the sensors to air dry, and forced air drying should be avoided.
- Gasket Check: The gasket inside the VAC port of the MDXVG should be checked for wear or deformation and replaced if necessary (CPS gasket PN: HXG).
- Warranty: BLACKMAX digital manifolds are covered by a 1-year limited warranty (or 15 months from manufacture) against defects in assembly, materials, and workmanship. This warranty does not cover damage from alteration, misuse, submersion, extreme temperatures, lightning strikes, or electrical voltage exceeding specifications.
To Next Page
Need help?
General
