The microprocessor based 717B allows for instantaneous display of either sheet conductance or sheet resistance. Front panel programmability can optionally produce an external signal to alert operator of product acceptability. An analog output signal can be used for chart recorder representation of web conductance versus position, thus assuring product characteristics. The output displayed is in absolute units that are, with proper calibration, NIST traceable and correlateable to DC four-point measurements.

OTHER DELCOM PRODUCTS

DELCOM offers vacuum chamber systems for process monitoring and control. Inspection station/rewinder systems can help assure product quality. Instruments and systems are capable of conductance/resistance evaluation from speeds of zero to 3000 ft./minute. DELCOM also supplies optical systems for determination of optical density and percent transmission.

CONSOLE

· Display is 4-1/2 digit red LED with large 0.56 inch character height.

· Front panel range selection:

· Pushbutton manual zero

· Autozero

· Parameter storage of users program values and zero offsets

· Program selection of five bargraph zones: One pass zone, two marginal zones, one high failure zone and one low failure zone.

· Update speed of front panel display approx. three times/second

· Over-range indication via blinking display

· Fast response analog output for chart recorders. Nominal voltage range 0 to 2 volts; 0 to 10 volts available on request

SENSOR HEAD

· Standard twelve inch reach sensor head, DELCOM Model No. 12F100 (Will reach to center of 24 inch panel/web, target at open end)

· Non-contact, minimum one inch square sample required; gap approx. 2.5 mm (0.1 inches)

· Reading variation ~1 % in the center 1.3 mm of gap

· Reading variation ~3% within entire 2.5 mm gap

ACCURACY/PRECISION

· 0.0001 Mho resolution

· For conductance values of >0.002 Mhos, proper calibration can assure accuracy better than ± l% with respect to four contact probes.

· Analog output time constant is approximately 10 ms.

· Sensor head temperature drift for standard unit is less than 1.3 Millimho/deg. C.

· Console temperature drift less than 0.17 Millimho/deg. C.

OPTIONS

· Extended conductance range instruments are available for judgment of more or less conductive samples

· Digital Output BCD format: parallel, 4-1/2 decimal digits

· Serial RS-232 bus for external control and data collection

· See separate specification sheet for available sensor heads.

POWER REQUIREMENTS/DIMENSION

· International or domestic 115/230 Volts; 10 Watts, 50/60 Hertz

· Console dimensions (approx.): 15 cm (6 in.) high; 29 cm (11.5 in.) wide; 38 cm (15 in.) deep

MISCELLANEOUS

· Delcom manufactures a complete line of vacuum in-chamber or remote atmospheric conductance monitors, see 707R or 717R specification sheet.

· Specifications are subject to change without notice.