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Basic Electrometer

012-07124B

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Technical Support

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If you have any comments about the product or
manual, please let us know. If you have any
suggestions on alternate experiments or find a
problem in the manual, please tell us. PASCO
appreciates any customer feedback. Your input helps
us evaluate and improve our product.

To Reach PASCO

For technical support, call us at 1-800-772-8700
(toll-free within the U.S.) or (916) 786-3800.

fax:

(916) 786-3292

e-mail:

[email protected]

web:

www.pasco.com

Contacting Technical Support

Before  you  call  the  PASCO  Technical  Support
staff,  it  would  be  helpful  to  prepare  the  following
information:

 

If    your  problem  is  with  the  PASCO  apparatus,

note:

!

Title  and  model  number  (usually  listed  on  the
label);

!

Approximate  age  of  apparatus;

!

A  detailed  description  of  the  problem/sequence
of  events  (in  case  you  can’t  call  PASCO  right
away,  you  won’t  lose  valuable  data);

!

If  possible,  have  the  apparatus  within  reach
when  calling  to  facilitate  description  of
individual  parts.

 

If  your  problem  relates  to  the  instruction

manual,  note:

!

  Part  number  and  revision  (listed  by  month  and

year  on  the  front  cover);

!

  Have  the  manual  at  hand  to  discuss  your

questions.

Limited Warranty

PASCO scientific warrants the product to be free from
defects in materials and workmanship for a period of
one year from the date of shipment to the customer.
PASCO will repair or replace, at its option, any part of
the product which is deemed to be defective in material
or workmanship. The warranty does not cover damage
to the product caused by abuse or improper use.
Determination of whether a product failure is the result
of a manufacturing defect or improper use by the
customer shall be made solely by PASCO scientific.
Responsibility for the return of equipment for warranty
repair belongs to the customer. Equipment must be
properly packed to prevent damage and shipped

Warranty

postage or freight prepaid. (Damage caused by
improper packing of the equipment for return shipment
will not be covered by the warranty.) Shipping costs for
returning the equipment after repair will be paid by
PASCO scientific.

Address:

PASCO scientific
10101 Foothills Blvd.
Roseville, CA  95747-7100

Phone:

(916) 786-3800

FAX:

(916) 786-8905

e-mail:

[email protected]

Web site:

www.pasco.com

Summary of Contents for ES-9078

Page 1: ... charge polarity and measures charges as low as 10 11 coulombs With these features you ll find that your electrostatics demonstrations and labs are easier to perform and with quantitative data are more informative The electrometer is powered by four AA alkaline batteries easily replaced by opening the back casing of the electrometer EQUIPMENT Parts included Basic Electrometer ES 9078 Associated Ca...

Page 2: ... use the electrometer to measure charge current or voltage 6 Set the range switch to the desired voltage range The range setting refers to the voltage input required to produce a full scale meter deflection e g a setting of 30 means that a full scale meter deflection indicates a voltage of 30 volts Important Points for General Operations 1 Between measurements always press the Zero button to disch...

Page 3: ...le a charged proof plane the electrometer reading will generally remain relatively unchanged This is because the total capacitance is only negligibly affected by the proof plane This may not always be the case however Any charge measurement with the electrometer is indirect based on the knowledge that the amount of charge on an object is proportional to the potential difference The readings of the...

Page 4: ...in it is given by Q CV If the known charged capacitor is connected across the leads of the electrometer it is connected in parallel with the internal capacitance of the electrometer CE The total capacitance becomes C CE The known capacitor discharges across the electrometer and a voltage VE is read Since the total charge in the system is still just the charge of the known capacitor we know that CV...

Page 5: ...ect the current through the circuit Using a Computer with Science Workshop Interface The signal output connector on the ES 9078 Electrometer provides an output signal for the Science Workshop interface This provides an output signal for displaying data in analog meters tables graphs or oscilloscopes making data analysis easy It is important to remember that the signal output on the ES 9078 has a f...

Page 6: ...truction manual note Part number and revision listed by month and year on the front cover Have the manual at hand to discuss your questions Limited Warranty PASCO scientific warrants the product to be free from defects in materials and workmanship for a period of one year from the date of shipment to the customer PASCO will repair or replace at its option any part of the product which is deemed to...

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