Prostat PFK-100 Manuale utente
User Manual
PFK-100
FIELD METER SET
3
Rev. C / February 2, 2015
PFK-100 Field Meter Set
I. Introducon
The PFM-711A is an accurate, compact electrostac eldmeter used for locang and measuring stac
charge potenals. The Charge Plate Assembly CPM-720A allows the PFM-711A to be used to balance
& Monitor air ionizaon equipment, and generally funcon as a Charge Plate Monitor (CPM). Using
the PCS-730 Charging Source, decay performance of ionizers, materials and other equipment may be
measured. Many other types of electrostac measurements may also be made using the PFM-711A
and its accessories.
A. The PFM-711A features SAMPLE and HOLD measurement modes that allow measurements to be
made in places that would be dicult to reach or see with other instruments.
1. When using the CPM-720A Charge Plate Assembly, the SAMPLE and HOLD feature is useful for
obtaining accurate readings.
2. Note that all isolated plates will discharge over me, and the HOLD feature will retain the de-
vice’s reading.
B. Range switching is provided with the PFM-711A. In V/inch mode, the digital display covers the
range of 0 - 1999 volts in one volt increments. In kV/inch mode, it covers the range of 10 volts to
19,990kV in ten volt increments.
1. An analog output jack provides a 1 volt output corresponding to 10kV, which is independent of
the range selected and meter indicaon.
2. The circuitry is a digital, electronic chopper design and subsequently, the instrument is useful
for making electrostac eld measurements in areas where ionized air is present.
3. For accurate, repeatable performance, the PFM-711A must be grounded during normal opera-
ons.
C. The CPM-720A Charge Plate Assembly has been designed specically to match the small size and
handheld convenience of the PFM-711A eldmeter. It has been conceived as closely as possible to
conform to the guidelines of ANSI/ESD STM3.1 air ionizaon standard.
1. Because of small size, the Charge Plate Assembly CPM-720A does not meet the requirement of
the EOS/ESD-S3.1 air ionizaon standard for 20pF plate assembly capacitance.
2. The CPM-720A capacitance is approximately 15.6 to 15.8pF. The performance of the CPM-
720A correlaon to a 6 inch charge plate monitor such as the CPM-760A which meets ANSI/
ESD STM3.1 air ionizaon standard, is as follows:
4Rev. C / February 2, 2015
PFM-100 Field Meter Set
Hand Held by Grounded Operator (Table 1)
12 inches 18 inches 24 inches
(+)Average 1.042 0.844 0.861
(-) Average 0.977 0.930 0.798
Global Ave 1.006 0.890 0.824
Table 1: Hand Held by Grounded Operator
5
Rev. C / February 2, 2015
PFK-100 Field Meter Set
Mounted on 5lb. Weight with Grounded Wrist Strap (Table 2)
12 inches 18 inches 24 inches
(+)Average 1.054 0.912 0.932
(-) Average 0.929 0.927 0.901
Global Ave 0.962 0.920 0.914
Table 2: Mounted on 5lb. Weight with Grounded Wrist Strap
D. The PCS-730 Charging Source provides ±1.25kV DC for applicaons where an auxiliary portable
electrostac power supply is useful. It is designed for use with the PFM-711A Field Meter and
CPM-720A Charge Plate Assembly. In order to obtain power output from the PCS-730:
1. Its charging wand must be installed in the output receptacle.
2. The PCS-730 must be grounded during normal operaons.
6Rev. C / February 2, 2015
PFM-100 Field Meter Set
II. Cauons & Warnings
A.
Do not point the PFM-711A Field Meter Ranging Lights into anyone’s eyes.
CAUTION
Do not point ranging lights into anyone’s eyes.
B.
Do not exceed 6,000 volts on CPM-720A Charge Plate Assembly.
C.
Only qualied instrument repair personnel should open or repair either the PFM-711A Field Meter
or the PCS-730 Charging Source.
WARNING
Only qualied personnel should open or repair PFM-711A
Field Meter or PCS-730 Charging Source.
D.
Do not use the PCS-730 Charging Source in close proximity to electrostac discharge sensive
(ESDS) devices; do not make contact with ESDS devices.
CAUTION
Do not use PCS-730 Charging Source near ESDS devices.
E.
Do not store the PCS-730 Charging Source with the Charging Wand Installed.
F.
Turn OFF all instruments when in storage or transit. Remove baeries when instruments are in-
tended for long-term storage, i.e., six months or longer.
CAUTION
Ground Cases of PFM-711A Field Meter and
PCS-730 Charging Source for proper operaon.
III. Equipment Inspecon & Inial Preparaon for Use
A. PFM-711A Field Meter - Equipment and Accessories
• One PFM-711A Field Meter
• One 36 inch analog output test cable equipped with two male banana plug
• One 9 volt DC baery
7
Rev. C / February 2, 2015
PFK-100 Field Meter Set
B. PFM-711A Field Meter Preparaon for use.
1. Install 9 volt baery provided by sliding baery com-
partment open and rmly snapping baery terminals to
the appropriate connectors. Baery can only be con-
nected in one way. Carefully reclose the baery com-
partment.
2. Before operang the PFM-711A, the operator should se-
lect and wear a wrist strap that is conrmed funconal
and properly grounded.
OPERATIONAL REQUIREMENT
Cases of PFM-711A Field Meter and PCS-730 Charging Source
MUST be grounded for proper operaon
.
3. With the operator’s ngers contacng the grounding snap on the back of the unit, slide the
three posion Range/Power Switch (s1) (kV/inch, OFF V/inch) to the kV/inch posion.
a. Conrm that the instrument’s display is acvated and that the baery low indicaon
(BATT) is not displayed. If low baery is displayed, replace the baery.
DIGITAL DISPLAY
ANALOG OUTPUT
RANGE/POWER SWITCH (s1)
PANEL ZERO (r16)
INTERNAL ZERO
ADJUSTMENT (r27)
INTERNAL GAIN
ADJUSTMENT (r10)
SAMPLE/HOLD
BUTTON (s2)
8Rev. C / February 2, 2015
PFM-100 Field Meter Set
b. Cycle the SAMPLE/HOLD buon (s2) by pushing it a few mes; note the HOLD indicaon
on the meter’s display. Release SAMPLE/HOLD so that the meter is free to measure elds.
c. Hold a at sheet of material in front of the meter’s sensing plate to conrm operaon of
the red ranging Bull’s Eye light system. A circle with a spot in the middle should clearly ap-
pear on the material surface when held one inch from the meter’s sensing plate.
d. Point the unit away from surfaces and objects, and rotate the Black Panel (r16) ZERO knob
unl the display indicates 0.00.
e. Experiment with the meter by measuring the surface of a charged material.
f. Slide the three way RANGE/POWER Switch (s1) to the V/inch posion. Allow the display to
sele to a stable indicaon; this should require four to eight seconds.
g. Point the unit away from surfaces and objects, and rotate the Black Panel ZERO knob (r16)
unl the display indicates 000.
h. Experiment with the meter by measuring the surface of a charged material.
OPERATIONAL NOTE
The case of PFM-711A Field Meter is conducve and part of the instrument’s grounding
circuit. If one holds the meter in one hand, and aempts to measure voltage on the other
hand, no reading can be obtained regardless of body voltage
.
C. CPM-720A Charge Plate Assembly – Equipment and Accessories
1. One parallel plate assembly equipped with Teon insulators between parallel plates:
a. Upper plate is a square sensing plate equipped with a banana receptacle.
NOTE
Each CPM-720A is calibrated at the factory to match its respecve PFM-711A eldmeter.
Do not modify the CPM-720A calibraon adjustment without following factory
calibraon procedure. Matched PFM-711A and CPM-720A units have the same
serial numbers. Do not interchange
.
b. Boom plate is a ground reference plate, notched and sized for aachment to the PFM-
711A.
2. An insulang pad is installed beneath the square upper plate for separaon between
the CPM-720A sensing plate and the PFM-711A Field Meter case.
3. One female metal banana plug receptacle is installed on the sensing (upper) plate.
4. A calibraon adjustment screw and nut assembly is installed beneath the upper plate,
9
Rev. C / February 2, 2015
PFK-100 Field Meter Set
between the sensing and notched ground plates.
D. CPM-720A Charge Plate Assembly Preparaon for use
1. With the PFM-711A Field Meter controls and the CPM-720A sensing plate facing up
(the lower plate has a cutout for the meter), carefully slide the CPM-720A’s lower
ground plate into the LOWER mounng grooves molded into the sides of the PFM-
711A’s case.
OPERATIONAL NOTE
Inial mounng of the CPM-720A Charge Plate Assembly to the PFM-711A
Field Meter Case will be extremely snug. Be sure that plate and meter case
grooves are perfectly matched before mang the two instruments together.
Subsequent uses will cause sucient wear for easy mounng
.
2. Carefully slide the plate towards the meter’s sensor unl the plate assembly is fully
mounted to the PFM-711A.
a. The PFM-711A Meter case should be mounted snugly into the lower grounding plate notch.
b. The insulated pad located beneath the upper plate isolates the upper plate from the PFM-
711A Meter case.
3. Before operang the PFM-711A and CPM-720A Charge plate assembly, the operator should
select and wear a wrist strap that is fully funconal and properly grounded.
10 Rev. C / February 2, 2015
PFM-100 Field Meter Set
OPERATIONAL REQUIREMENT
Cases of PFM-711A eld meter and PCS-730 charging source MUST be
grounded for proper operaon
.
4. With the operator’s ngers contacng the grounding snap on the back of the PFM-711A Field
Meter unit, slide the three posion (kV/inch, OFF, V/inch) RANGE/POWER switch (s1) to the
kV/inch posion.
a. Conrm that the instrument’s display is acvated and that the baery low indicaon (BATT)
is not displayed. If low baery indicaon is displayed, replace the baery.
b. With the PFM-711A meter case grounded, hold the unit away from surfaces and objects,
and rotate the Black Panel ZERO knob (r16) unl the display indicates 0.00.
5. Experiment with the PFM-711A/CPM-720A combinaon by touching a charged object to the
upper sensing surface of the CPM-720A. (Note: review the funcons of the PCS-730 for this
experiment; meter indicaon should be approximately ±1.20 kV) Discharge the upper plate to
ground, or short the upper and lower plates, unl the PFM-711A meter reads zero.
6. Slide the three way RANGE/POWER switch (s1) to the V/inch posion. Allow the display to
sele to a stable indicaon; this should require four to eight seconds.
7. Hold the unit away from surfaces and objects, and rotate the Black Panel ZERO knob (r16) unl
the display indicates 000.
8. Experiment with the PFM-711A/CPM-720A combinaon by touching a charged object to the
upper sensing surface of the CPM-720A. (Note; review the funcons of the PCS-730 for this
experiment; meter indicaon should be approximately ±1,200 volts.) Discharge the upper plate
to ground, or short the upper and lower plates, unl the PFM-711A meter reads zero.
E. PCS-730 Charging Source - Equipment and Accessories
• One PCS-730 Charging Source instrument equipped with three posion rocker switch and
female banana receptacle at the front end of
the PCS-730 case.
• One Charging Wand equipped with male ba-
nana plug
• One 9 volt DC Baery
Altri manuali per PFK-100
1
Indice
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