Fieldpiece SMAN2 Operator's Manual
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Fieldpiece SMAN2 Operator's Manual

Fieldpiece SMAN2 Operator's Manual

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Fieldpiece
Digital Manifold &
Vacuum Gauge
OPERATOR'S MANUAL
Models SMAN2 SMAN3
01
Stable
Set
°F°C
Alarm
Microns
HiLo
Target SH
Digital Manifold + Vacuum Gauge
T1
AUTO
OFF
CAL
Superheat
Subcooling
T1 T2 Direct
CAL
Atmospheric
Pressure
Psig
Kpa
inHg
cmHg
°F°C
SHT1
VSAT
Psig
Kpa
inHg
cmHg
°F°C
SHT1
VSAT
IDWB
R-
Target
Superheat
Saturation
CAL
Test
Pressure
SMAN3
Psig
Kpa
inHg
cmHg
°F°C
SCT2
LSAT
ODDB
HH:MM:SS
APO
T2
CAL
SMAN3
Psig
Kpa
inHg
cmHg
°F°C
SCT2
LSAT

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  • Page 1 Fieldpiece Digital Manifold & Vacuum Gauge OPERATOR'S MANUAL Models SMAN2 SMAN3 SMAN3 Psig Psig inHg inHg cmHg cmHg °F°C °F°C SHT1 SCT2 VSAT LSAT IDWB ODDB HH:MM:SS Stable °F°C Alarm Microns HiLo Target SH Digital Manifold + Vacuum Gauge AUTO...

  • Page 2: Quick Start

    1 second. 2 Select desired units (English or Metric) by pressing the UNITS button (SMAN3) or hold- ing the ENTER button for 1 second (SMAN2). 3 Calibrate temperature and/or pressure as needed. See calibration sections for more details.
  • Page 3 Description Your SMAN is the portable digital refrigerant manifold and vacuum gauge (SMAN3) for A/C and refrigeration service. Your SMAN combines high pressure manifold gauges, a superheat/ subcooling calculator, micron gauge for vacuum (SMAN3), and dual temperature measurements into one easy-to-use instrument. Your SMAN calculates and displays target superheat and actual superheat to ensure proper charging of a unit.
  • Page 4 Display Psig inHg cmHg SMAN3 SMAN3 °F°C Pressure (pounds/in SMAN3 Psig Psig SMAN3 SHT1 Psig Psig Psig Pressure (Kilopascals) Psig Psig inHg inHg Psig Psig VSAT inHg inHg cmHg cmHg Negative Pressure (inches of mercury) inHg inHg IDWB cmHg cmHg inHg inHg inHg...
  • Page 5 SMAN3 Psig Psig inHg cmHg inHg SMAN3 cmHg SMAN3 °F°C SMAN3 Pressure (pounds/in SMAN3 Psig Psig SMAN3 SMAN3 SHT1 Psig Psig °F°C Pressure (Kilopascals) Psig Psig inHg inHg Psig Psig Psig VSAT SCT2 inHg inHg cmHg cmHg Negative Pressure (inches of mercury) Psig inHg inHg...
  • Page 6 7 Hold 1 second to toggle power on/off. 8 Press up or down arrow to adjust values. 9 Press to confirm selection. For the SMAN2, hold 1 second to adjust units. 10 Press to turn on/off the Hi/Lo vacuum alarms and hold to change alarm settings.

  • Page 7: Standard Pressure

    Functions Standard Pressure 1 Connect your SMAN to the system using EPA approved 1/4in refrigerant hoses. 2 Read pressures directly from the upper display. Superheat and Subcooling 1 Press circular button to cycle through temperature modes until SH and SC are shown. The SMAN can show superheat and subcooling simultaneously.
  • Page 8 AUTO Atmosp Press AUTO Atmos T1 T2 Direct Pres CAL C A Atmos Pres 1 Press circular button until T1 and T2 are shown. 2 Plug in any K-type thermocouple into T1 and/or T2. 3 Read the temperature directly from the display. Target Superheat Target Superheat is only used for charging fixed orifice air conditioning systems.
  • Page 9 T1 T2 Direct Saturation T1 T2 Direct Saturation Digital Manif Superheat Target eric Test Atmospheric Superheat Target Test Atmospheric Atmospheric Test AUTO Atmospheric Pressure Subcooling Superheat Pressure Pressure Pressure Pressure Pressure eric Test Superheat Pressure Atmospheric Test Subcooling Superh 5 For ODDB input, clip the ATA1 thermocouple to the side of the Pressure Pressure Subcooling...
  • Page 10 ld + Vacuum Gauge Test Test Pressure Target Pressure Pulling a Vacuum (model SMAN3) Superheat rheat Follow all manufacturers’ evacuation procedures over those in Target Superheat this manual. aturation Test Pressure Note: larger systems may take much longer to reach a deep vacuum Target Superheat and a different evacuation method or equipment might be preferred.
  • Page 11 What is Superheat and Subcooling? Why Do I Need to Measure It? Superheat is the difference between the actual temperature of the refrigerant (gas) as it leaves the evaporator and the boiling point of the refrigerant. After boiling, the refrigerant continues to heat up.
  • Page 12 (low load for TXV) the subcooling will continue to rise. If the subcooling rises too high, liquid may be backed into the compressor causing damage and catastrophic failure. See www. fieldpiece.com for more technical articles. Evaporator Low Side Direction of...

  • Page 13: Specifications

    Backlight: Blue (On for 1 minute unless turned off manually) Battery: 6 x AA (Battery life below based on alkaline type) Battery life (SMAN2): Approx. 500 hours (without backlight) Battery life (SMAN3): Approx. 135 hours (without backlight) Low battery indication:...
  • Page 14 Microns for Vacuum (SMAN3 only) Connector Type: Standard 1/4 NPT male flare fitting Range: 50 to 9999 microns of mercury Resolution: 1 micron (50 to 2000 microns), 250 microns (2001 to 5000 microns), 500 microns (5001 to 8000 microns), 1000 microns (8001 to 9999 microns) Accuracy: ±10% or ±10 microns, whichever is greater (50 to 1000 microns)

  • Page 15: Maintenance

    Maintenance Clean the exterior with a dry cloth. Do not use liquid. Battery Replacement The battery must be replaced when the battery life indicator is empty. Turn your SMAN off and replace with 6 AA batteries. Cleaning the Sensors (SMAN3) Over time, the vacuum sensor of the SMAN3 may become contaminated with dirt, oil, and other contaminents introduced from pulling...
  • Page 16 Calibration Temperature To calibrate your SMAN temperature thermocouples, adjust the pot on the front of the meter labeled T1 Cal or T2 Cal. The best way to calibrate is to match to a known temperature. Ice water is very close to 32°F and is readily available.

  • Page 17: Advanced Pressure Calibration

    Advanced Pressure Calibration Your SMAN has the ability to perform a linear adjustment of the pressure sensors based on refrigerant type, temperature, and pressure. Note: If the P1 and P2 pressure readings are not at zero, perform a Pressure Zeroing adjustment before performing this advanced calibration.

  • Page 18: Safety Information

    to the vapor saturation temperature. If the pressures on your SMAN are within 3psi of the pressure corresponding to the vapor saturation temperature, the SMAN will adjust the pressure sensor linearity to match the P-T chart. Safety Information WARNINGS DO NOT APPLY MORE THAN 800 PSI TO ANY PORT ON THE MANIFOLD. FOLLOW ALL EQUIPMENT MANUFACTURER'S TESTING PROCEDURES ABOVE THOSE IN THIS MANUAL IN REGARDS TO PROPERLY SERVICING THEIR EQUIPMENT.

  • Page 19: Limited Warranty

    Fieldpiece product, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the above. Fieldpiece shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim of such damage, expenses, or economic loss.

  • Page 20: Obtaining Service

    Send your digital manifold, freight prepaid, to Fieldpiece Instruments. Send proof of date and location of purchase for in-warranty service. The meter will be repaired or replaced, at the option of Fieldpiece, and returned via least cost transportation. 99 Washington Street Melrose, MA 02176...

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