DATA PRECISION 938 User Manual

42-5124
MODEL 938
2.2 FUNCTIONAL CHARACTERISTICS
Display
0.5" (13mm) liquid crystal
Reading Rate:
2.0 readings /sec.
Overload Indication:
Blanking of all digits except MSD and decimal point
Calibration Adjustments:
One internal adjustment for accuracy
One front-panel adjustment for zero
2.3 POWER
Power Supply:
9V standard battery or optional battery eliminator BE9
Battery Life:
Approximately 200 hours on alkaline or 100 hours on car 
bon zinc battery with normal usage
2.4 PHYSICAL & ENVIRONMENTAL
Size:
6.75"L x 3.5"W x 1.5"H (170mm x 89mm x 38mm)
2.4 ACCESSORIES SUPPLIED
Operator ’ s and Maintenance Manual
Warranty Card, Certificate of Conformance , and Final Test
and Calibration Certification in a combined document
9V Battery
Spare Fuse
Banana plug to alligator clips Test Leads (T9)
2.5 OPTIONS/ACCESSORIES
Test Leads with alligator clips ........................................................ T9
Banana plug mounted test clip ................................................... LC1
Battery Eliminator ......................................................................... BE9
2-2
MODEL 938 OPERATION & RECALIBRATION
Chapter 3
OPERATION AND RECALIBRATION
3.1 GENERAL
Chapter 3 contains instructions for installing (or replacing) the
battery, for connecting the Model 938 to make a measurement,
for recalibrating the capacitance-meter, and hints for obtaining
the high performance designed into the instrument.
3.2 UNPACKING AND REPACKING THE MODEL 938
a. As shown in Figure 2-1, the Model 938 is placed in a water 
proof plastic wrapper, securely fitted between molded plastic
foam shock isolators, and placed with the documentation and
battery in the shipping carton. When unpacked, you should find:
(1) Model 938 Digital Capacitance-meter
(2) Certificate of Conformance, Factory Test Certification,
and Warranty Card (combined in one document)
(3) Spare 1/4A 250V 3AG Fast Bio Fuse, inside multimeter
bottom cover
(4) 9V zinc-carbon battery, outside of multimeter.
(5) Test lead set T9
(6) Instruction manual
b. Carefully examine these articles, noting especially the match 
ing serial numbers of the instrument and the test certification.
Inspect the packing case and the instrument for any signs of
damage during shipment and report immediately to the carrier.
Fill out and return the warranty card to register your instrument
and to establish your warranty service interval.
c. Accessories, such as test leads and battery eliminator, may
have been ordered. These will be shipped in their own con 
tainers.
d. Retain the packing material for reshipment. When shipping
Model 938, use foam liners and pack in original carton, if
available. If new wrapping and shipping container must be used,
wrap the instrument in at least 3 inches of shock isolating
material, such as bubble plastic, and fasten securely in the con 
tainer.
3-1

DATA PRECISION 938 Specifications

General

Brand	DATA PRECISION
Model	938
Category	Measuring Instruments
Language	English