PFK-100 Electrostatic Field Meter Set

The PFK-100 set includes Prostat's unique PFM-711A dual range field meter, CPM-720A charged plate monitor assembly and PCS-730 ±1 kv charging source. With this instrument set you can measure electrostatic fields, analyze ionizer performance and assess the voltage generation of materials, equipment and personnel.

The battery operated PFM-711A Field Meter is a compact "electronic chopper" design with accuracy of +/- 2% at ambient conditions (23ºC and 30%Rh). It features automatic polarity, measurement "hold" button, low battery indicator, high and low ranges, distance ranging lights for accurate and repeatable measurements, manual zero control and a ground snap. With the supplied analog output cable, it can be used in conjunction with an X-Y plotter or any analog data-recording device.

The CPM-720A Charge Plate Assembly is 3.25 inches square. It attaches to the PFM-711A field meter for ionizer balancing per ANSI/ESD-S3.1, voltage or charge generation and voltage suppression analysis.

The PCS-730 +/- 1 kV Charging Source is used to charge the CPM-720 to +/- 1,000 volts to measure ionizer decay and material decay. These three instruments are match calibrated to work together for accurate and efficient auditing.

PFM-711A FIELD METER

Meter Display:
3-1/2 digit Liquid Crystal Display with 0.4" digit height. Automatic polarity, HOLD and LOW BATTERY indicators.

Output:
Analog signal output and 30 inch two conductor cable provided. ± 10.0 KV meter reading equals ± 1.0 volts output.

Range:
High Range 0 V to ± 19.99 KV; least significant digit indicates tens of volts at one inch distance.
Low Range 0 V to ± 1,999 V; least significant digit indicates 1 volt at one inch distance. Measures higher voltages at greater distances, e.g., at two inches double indicated voltage, at four inches multiply indicated voltage by four.

Range Lights:
Red "Bulls Eye" at one inch distance

Accuracy & Environment:
± 2% at ambient conditions ( 23ºF and 30% Rh).
± 5% at 0 - 50ºC and 0 - 85% Rh (non-condensing).
Accuracy unaffected by the presence of air ionization.

Response:
Digital display updates three (3) times per second.
Analog Output Time Constant: Either Range 0.1 sec.
Display Time Constants: High Range 0.2 sec; Low Range 2.0 sec

Controls:
Three position slide switch: KV/INCH - OFF - V/INCH
Sample/HOLD push button, and ZERO adjust knob.

Grounding:
Meter circuit grounded through the conductive case and 10 mm snap fastener mounted on back of case.

Power:
9 VDC alkaline battery. Battery life minimum 40 hours.

Dimensions:
2.4" wide x 4.2" long x .9" deep (1.3" deep with zero knob and snap fastener).

Weight:
5 ounces, with battery

PCS-730 CHARGING SOURCE

Input Power:
9 Volt Alkaline Battery. Battery life in excess of 40 hours continuous operation.

Output:
± 1,000 volts DC Minimum, Current limited to less than 1 Microamp.

Output Connector:
Female banana jack provided with mating contact rod.

Grounding:
10mm female snap fastener on rear of case. Note that wand must be installed and unit grounded for proper operation

Size:
2.5"W x 4"L (4.2"L with jack) x 1.5"D (1.8"D with switch and snap)

Weight:
6 oz (with battery)

CPM-720A CHARGE PLATE ASSEMBLY

Isolated Plate:
Stainless Steel parallel plates, 3.25 inches square. Auxiliary female jack installed.

Capacitance:
Plate Capacitance 10 picofarads (pF) ± 1 pF
Note: Plate capacitance is 15.8 pF when mounted to PFM-711A Filed Meter

Range:
0 to ± 6 KV at a plate separation of 0.60 inch.

Accuracy:
± 2% at 1,000 volts. Calibration adjustment screw provided.

Grounding:
Through conductive case and snap fastener of Model PFM-711A.

Size:
3.25"W x 3.25"L x .9"D (1.0"D with jack).

Weight:
8 oz.