3D Instruments Hand Pump Pressure Calibrator 
8103-100
0-150PSI
The 3D Hand-Operated Calibration Unit is a compact, lightweight and portable hand-operated pressure source. When a 3D pressure gauge or Star™ Digital Calibrator is added, the unit can be used to calibrate or check pressure measuring devices in the field. The calibration units are safe: no electrical power or high pressure bottles are required. The units are completely assembled and ready to connect to the pressure device to be calibrated. Calibration is quick and simple because the unit is taken to the pressure device rather than vice-versa. The units can be supplied with or without a 3D 1/4% accuracy gauge or Star™ Digital Calibrator (see order information for correct model number). The pneumatic model is used for pressures to 300 psig. Options available include carrying cases, special gauges and hoses with fittings. 
OPERATING INSTRUCTIONS 
The 8103-100 Pneumatic Calibration Unit provides a source of air pressure from 0 to 150 psig. 1. Isolate device to be calibrated. CAUTION: Avoid connecting to high pressure sources. These precautions and safe operating procedures must be observed to avoid damage to the unit or personal injury. Connect the 1/4” ' NPT (F) hose fitting to the pressure device to be calibrated. Make sure connection is pressure tight to prevent leakage. 2. Turn knurled knob on needle valve (item 7) clockwise to close. NOTE: Hand tighten only, to prevent damage to needle valve seat. 3. Squeeze the handles until desired pressure is obtained. More force is required as pressure increased. 4. Turn knurled vernier knob (item 8) clockwise to increase (counterclockwise to decrease) pressure. 5. Turn knurled knob on needle valve (item 7) counterclockwise to release pressure. 6. When calibration procedure is complete reduce pressure to zero before disconnecting unit to prevent personal injury. 7. Store unit in carrying case or safe location.