4
3.9.
SPHERES: STAINLESS STEEL BALLS OF VARIOUS SIZES ARE USED FOR
VOLUME CALIBRATIONS. ALL SPHERE VOLUMES ARE GIVEN IN CUBIC
CENTIMETERS (CC`S).
3.10.
TOGGLE VALVE: TOGGLE VALVES ARE ON / OFF VALVES LABELED I, II,
GAS IN AND GAS OUT ON THE INSTRUMENT PANEL FACE. VALVES ARE
CLOSED WHEN THEIR HANDLES ARE PARALLEL TO THE CABINET FACE AND
OPEN WHEN PERPENDICULAR TO THE CABINET FACE.
3.11.
NEEDLE VALVE: TWO ADJUSTABLE NEEDLE VALVES PERMIT FLOW
RATE CONTROL THROUGH GAS IN AND GAS OUT. TURNING THEIR KNOB
CLOCKWISE REDUCES THEIR RESPECTIVE FLOW RATES.
3.12.
CORCOM: FUSED ELECTRICAL RECEPTACLE USED TO CONFIGURE THE
INPUT POWER FOR 100,120, 220, OR 240VAC. THE RECEPTACLE IS LOCATED ON
THE INSTRUMENT’S BACK PANEL.
3.13.
SELECTOR VALVE: TWO - POSITION BALL VALVE LOCATED ON THE
MULTIPYCNOMETER’S CABINET FACE FOR SWITCHING BETWEEN POSITIONS
LABELED CELL AND REFERENCE.
4.0. RESPONSIBILITIES
4.1.
THE FOLLOWING PROCEDURE SHALL BE PERFORMED ONLY BY
INDIVIDUALS TRAINED AS ELECTRICAL AND MECHANICAL TECHNICIANS.
4.2.
QUANTACHROME TECHNICIANS SHALL BE FULLY TRAINED ON
ELECTRICAL PROCEDURES, MECHANICAL ASSEMBLY, AND GAS HANDLING
OPERATIONS AS OUTLINED IN THE COMPANY QUALITY MANUAL.
4.3.
TECHNICIANS WILL HAVE AVAILABLE THE FOLLOWING
EQUIPMENT REQUIRED FOR TESTING.
4.3.1. CALIBRATED 4 1/2 DIGITAL VOLTMETER WITH OHMS, AC-
250VAC AND DC 24VDC.
4.3.2. ULTRA HIGH PURITY (99.999%) HELIUM WITH A TWO STAGE
REGULATOR SET TO DELIVER AT LEAST 25 PSIG OF PRESSURE.
4.3.3. 5/16 HEX ALLEN WRENCH.
4.3.4. STANDARD HAND TOOLS.
4.3.5. JEWELER’S SCREWDRIVER.
4.3.6. CALIBRATED PRESSURE GAUGE TO READ 25 +/- 0.25 PSIG.
4.3.7. BEAKER HALF FULL OF WATER.
4.3.8. TORQUE SEAL.