PASCO SF-9569A User Manual

Instruction Sheet
for the PASCO
Model SF-9569A

Student Ammeter

012-08014A

8/01

Introduction

The PASCO Model SF-9569A Student Ammeter is a
rugged yet sensitive instrument designed specifically
for student experiments. It has three ranges and is
switch selectable by input jack to measure AC and DC
values. All ranges are overload protected.

CE

Ammeter

0

1

2

SF-9569A

3

A

5

4

5

0.5

0.05

0

Max. 30V AC

Zero Adjust

Screw

Operation

② Determine the range; for both AC and DC mea-

surements, current may be measured in one of
three ranges: 0.05, 0.5 and 5 Amperes. The range
is selected by plugging leads into the appropriate
input jack.

➤ NOTE: To protect the meter, always choose

a current that is higher than the highest current
you might expect in the circuit.

③ Use leads (not included) to connect the circuit at

the point where the current measurement is desired.

For AC measurements –

Plug one lead of the circuit into the black input
jack and the other into the red input jack of the ap­propriate range.

For DC measurements –

Connect the leads in such a way that positive current
flows into the black (0) connector on the Ammeter.

To zero the meter:

Place the meter in the position (vertical or horizontal)
in which it will be used. Disconnect the meter. Use a
small, standard blade screwdriver to turn the Zero
Adjust Screw (located on the casebelow the meter) until
the meter needle is aligned with the zero on the scale.

➤ NOTE: If the meter is zeroed in one position
and then the position is changed, it may need to
be zeroed again.

To measure current:

① Set the selection switch for AC or DC current.

(The AC setting will provide RMS readings for al­ternating current circuits.)

®

10101 Foothills Blvd. • P.O. Box 619011 • Roseville, CA 95678-9011 USA

Phone [phone] • FAX [phone] • email: [e-mail]

5

0.5
Circuit

0.05

Direction of

0

Now you can read the current on the meter. A full
swing of the needle corresponds to the value in the
chosen range selection (i.e., On the 5 A scale, a
reading of 3.0 indicates a current of 3.0 A; on the

0.05 A scale this reading would mean a current of
30 mA).

positive

current flow

better

ways to

teach science

Student Ammeter 012-08014A

Specifications

Ranges (DC and AC): 0 to 50 mA, 500 mA and 5 A
Accuracy: ± 2% of full scale
Scale length: 6.2 cm
Maximum DC Voltage Drop: 0.23 Volts
Overload Protection: to 15 Amps
Frequency Response (AC): 60 Hz to 20 kHz, ± 3db

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 workmanship. 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
shipment will not be covered by the warranty.)
Shipping costs for returning the equipment, after
repair, will be paid by PASCO scientific.

To Reach PASCO

For technical support, call us at 1-800-772-8700
(toll-free within the U.S.) or [phone].

fax: [phone]

e-mail: [e-mail]

web: www.pasco.com

Schematic SF-9569A

2

®