Fluke 7350 specifications IEEE-488 Interface, Front Panel, Motor Controller

Theory of Operation 2

Electronics Section

Table 2-1. Conversion Factors

Symbol	Description	Conversion Factor
inHg	inches of mercury (0 °C)	= kPa x 0.2952998
inHg	inches of mercury (60 °C)	= kPa x 0.296134
kPa	kiloPascals	= kPa x 1.0
bar	bars	= kPa x 0.01
psi	pounds per inch2	= kPa x 0.1450377
cmH2O	centimeters of water (4 °C)	= kPa x 10.19744
inH2O	inches of water (4 °C)	= kPa x 4.014742
inH2O	inches of water (20 °C)	= kPa x 4.021898
inH2O	inches of water (25 °C)	= kPa x 4.024108
kg/cm2	kilograms per cm2	= kPa x 0.0101972
mmHg	millimeters of mercury (0 °C)	= kPa x 7.500605
cmHg	centimeters of mercury (0 °C)	= kPa x 0.7500605
knots	airspeed knots	per NASA TN D-822
km/hr	kilometers per hour	= knots x 1.852
feet	feet of altitude	per MIL-STD-859A
meters	meters of altitude	per MIL-STD-859A
user1	user defined	= kPa x User defined
user2	user defined	= kPa x User defined
Pa	user defined (Pascals)	= kPa x 1000.0
%FS	user defined (percent of full scale)

IEEE-488 Interface

The RUSKA 7350’s IEEE-488 (GPIB) Interface Card, which plugs directly into the Back Plane Board, provides the RUSKA 7350 with an IEEE-488 Interface. This interface allows the user to automate the measurement and control processes.

Front Panel

The Microprocessor Board interprets all input from the Front Panel. The Front Panel contains the active matrix TFT color display, rotary knob and rubberized keys used to operate the RUSKA 7350.

Motor Controller

This motor controller controls the speed of the motor driving the pump in the pneumatic section of the 7350. The motor controller receives its analog signal (+/-10VDC) from the 76XX Interface Board and in turn runs the motor at variable speed. The controller can be configured with jumpers for either 115 VAC or 230 VAC power supply.

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