Gardner Bender SPR300+ AC Snap-Around Volt-Ohm-Ammeter User Manual
Gardner Bender Equipment

05/06
From #174-1
OPERATING INSTRUCTIONS
AC SNAP-AROUND VOLT-OHM-AMMETER
MODEL SPR-300 PLUS & SPR-300 PLUS A
1) FEATURES
・
UL Listed
・
New range finder symbols give quick and easy locations of all ranges.
・
Three functions, nine ranges.
・
Large optically clear window gives quick, easy distortion - free readings.
・
One AA type battery AWS Part AWS B-1 included.
・
Two fuses(one spare), both included. AWS Part #F-1.
・
Volt, Ohm and Common terminals are on the front panel.
・
Ohm scale on dial drum.
・
Industry standard safety shielded banana plugs and recessed input terminals included.
・
Pointer lock device to freeze readings.
・
1.5 Ampere range for low current equipment.
2) SPECIFICATIONS
Range :
AC Current
6/20/60/200/600 Aac
AC Voltage
150/300/600 Vac
Resistance
0-2K/25 ohm mid scale
Accuracy :
AC Current
±3% of full scale at 50-60Hz
±6% of full scale except 6A range at 400Hz
10% of full scale on 6A range at 400Hz
AC Voltage
±3% of full scale
Resistance
±3% of arc length
Withstand Voltage : 2,500 V AC for one minute between electrical circuit and
housing case or metal section of transformer jaws.
LIFETIME LIMITED WARRANTY
The attention to detail of this fine snap-around instrument is further enhanced by
the application of Sperry's unmatched service and concern for detail and
reliability.
These Sperry snap-arounds are internationally accepted by craftsman and
servicemen for their unmatched performance. All Sperry's snap-around
instruments are unconditionally warranted against defects in material and
workmanship under normal conditions of use and service; our obligations under
this warranty being limited to repairing or replacing, free of charge, at Sperry's
sole option, any such Sperry snap-around instrument that malfunctions under
normal operating conditions at rated use.
1
REPLACEMENT PROCEDURE
Securely wrap the instrument and its accessories in a box or mailing bag and
ship prepaid to the address below. Be sure to include your name and address, as
well as the name of the distributor, with a copy of your invoice from whom the
unit was purchased, clearly identifying the model number and date of purchase.
Sperry Instruments
ATT : Customer Service Dept.
2150 Joshua's Path, Suite 302,
Hauppauge, NY 11788
1
The warranty is not applicable if the instrument has been misused, abused,
subjected to loads in excess of specifications, has had unauthorized repair or has
been improperly assembled or used.
4.5) HOW TO USE POINTER LOCK & RANGE FINDER
SYMBOLS
(1) Slide the pointer lock button to the left. This allows easy readings in dimly lit
or crowded cable areas (Fig.8).
(2) For quick and easy identification the dial drum is marked with the symbols as
illustrated below (Fig.9).
5) BATTERY & FUSE REPLACEMENT
(1) Remove the screw on the back of the case for battery and fuse replacement
(Fig.10). Replace only with AWS fuse part F-1 or approved equal. 1/2A, 250V,
1/4"×1-1/4" Fast acting High Current interrupting style fuse.
CAUTION : For continued protection against fire, replace only with fuse of the
specified voltage current and rupture speed ratings.
(2) The battery and fuse are installed inside the case (Fig.11).
6) RETURN FOR REPAIR
Before returning your instrument for repair make sure the failure to operate is
not caused by:
1) Weak or de-energized battery
2) Fuse blown
3) Broken test leads
4) Pointer lock closed
If all of these conditions are checked to be fine and your instrument still does not
operate properly then send it bake freight prepaid to:
Sperry Instruments
2150 Joshua's Path, Suite 302
Hauppauge, NY 11788
Include all accessories and a note explaining what is wrong with the instrument.
Should you require an estimate please indicate ESTIMATE ONLY on your note. Be
certain to include your return address and day time phone number should we
need to contact you.
Ampere
range
to the
right.
Lower
range
to the
left.
Higher
range
to the
right.
Lower
range
to the
left.
Pointer
Lock
Fig.8
Fig.9
Fig.10
Fig.11
Back
Case
Screw
Spare
Fuse
Battery
Fuse