Instruction manual

3
012-04221C R-C Network
Equipment Return
Should this product have to be returned to PASCO scien-
tific, for whatever reason, notify PASCO scientific by
letter or phone BEFORE returning the product. Upon
notification, the return authorization and shipping instruc-
tions will be promptly issued.
➤NOTE: NO EQUIPMENT WILL BE
ACCEPTED FOR RETURN WITHOUT
AN AUTHORIZATION.
When returning equipment for repair, the units must be
packed properly. Carriers will not accept responsibility
for damage caused by improper packing. To be certain
the unit will not be damaged in shipment, observe the fol-
lowing rules:
➀ The carton must be strong enough for the item
shipped.
➁ Make certain there is at least two inches of packing
material between any point on the apparatus and the
inside walls of the carton.
➂ Make certain that the packing material can not shift in
the box, or become compressed, thus letting the instru-
ment come in contact with the edge of the box.
Limited Warranty
PASCO scientific warrants this 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 workman-
ship. This 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 postage or freight prepaid. (Damage caused
by improper packing of the equipment for return ship-
ment will not be covered by the warranty.) Shipping
costs for returning the equipment, after repair, will be
paid by PASCO scientific.
Specifications
Resistance: Three selectable series values:
50 MΩ, 100 MΩ, and 200 MΩ;
±5% Tolerance
Capacitance: Two selectable series values :
0.47 µF and .94 µF;
One series/parallel value:
0.22 µF;
±5% Tolerance
Connections: Five external connections via banana
jacks / binding posts allow electrical
connections to each circuit node.
Component Selection: Via three slide switches
Repairs
Because of the extreme simplicity of the ES-9053A R-C
Network and the fact that each component can be tested
from the front panel, this section will only give a list of
replaceable parts. Although PASCO scientific will repair
the ES-9053A it is highly suggested that repairs be made
in the field. Any person with a basic understanding of
electronics is capable of making the necessary repairs.
Replacement Parts
PART REF. DESCRIPTION/RATING
C1 Capacitor, Mylar, .22 mF, 100 V, ±5%
C2, C3 Capacitor, Mylar, .47 mF, 100 V, ±5%
R1, R2 Resistor, 100 MΩ, 3/4 W, ±2%
S1, S2, S3 Switch, Slide, 2 Pole, 4 Position
C2
S3
C3
C1
S2
S1
R1
R2
PCB Parts Layout
➤NOTE: Complete operational instructions of
other PASCO Electrostatic Accessories and direc-
tions for demonstrations possible with the complete
PASCO Electrostatic System are available in the
ES-9051 Accessory and Demonstrations Manual.
For a listing of available Electrostatic equipment
please refer to your current PASCO catalog.