®
OPERATING INSTRUCTIONS
A
.W. Sperry Instruments Inc.
AC SNAP-AROUND WITH DC VOLT RANGE
MODELS TD-2608 & TD-2608A
1
) FEATURES
•
UL Listed
• Five Functions, 12 Ranges.
•
Tear drop shaped jaws for ease of use in crowded cable areas.
• Industry standard safety shielded banana plugs and recessed input terminals.
•
DC voltage range especially useful for checking emergency battery operated power
supply systems, etc.
•
Pointer lock device to freeze readings
2) SPECIFICATIONS
Range: AC Current 6/15/60/150/300 Aac
A
C Voltage 150/300/600 Vac
D
C Voltage 60 Vdc
Resistance 1-kΩ/10Ω (30Ω/300Ω mid-scale)
T
emperature -20 to +150°C (-4 to + 302°F)
(Optional temperature probe
M
odel TP-7060 required).
A
ccuracy:AC Current ±3% of full scale
AC Voltage ±3% of full scale
D
C Voltage ±3% of full scale
Resistance ±2% of scale length
T
emperature ±9°F @ 32 to 212°F
(±5°C @ 0° to 100°C)
±18°F (± 10°C) all other ranges
W
ithstand Voltage:2,200 V AC for one minute between electrical circuit and
housing case or metal section of transformer jaws.
I
nsulation Resistance:10M Ω min. at 1000 V between electrical circuit and housing
c
ase or metal section of transformer jaws.
O
verload Protection:AWS part F-1, 0.5 A, 250 V, 1/4" x 1-1/4" fuse and diode
p
rotection on all resistance ranges.
Frequency: 50Hz/60Hz
C
onductor Size:Approx. 1.3" (33mm) max.
Dimensions: 7.6"(L) x 3.1"(W) x 1.5"(D)
1
93 mm(L) x 78 mm(W) x 39 mm(D)
Weight: Approx. 9.9oz (280g) battery included
P
ower Source:
A
WS part B-1, One 1.5V “AA” size battery
S
UM-3 or equivalent
F
use:
1
/4" x 1-1/4", .5A, 250V FF AWS Part #F-1
T
emperature:
5
°C to 40°C Max RH 80% to 31°, decreasing linearly
to 50% RH at 40°C
C
leaning:
W
ipe with a clean dry cloth.
Accessories: (included) TL-52 Test Leads, B-1 “AA” Battery, two 0.5A/250V fuses
(
spare fuse included) C-52 Carrying Case.
(optional) Energizer Model E-1 temperature probe Model TP-7060,
T
D-2608A comes packed complete on a see through
b
lister card. Case not included.
Instrument complies with insulation category (Overvoltage Category II). Pollution
D
egree 2 in accordance with IEC-664. Indoor use.
If the equipment is used in a manner not specified, the protection provided by the
e
quipment may be impaired.
3) SAFETY PRECAUTIONS
T
he following safety precautions must be observed to insure maximum personal safety
d
uring the operation, service and repair of this meter:
1. Read these operating instructions thoroughly and completely before operating your
m
eter. Pay particular attention to
W
ARNINGSwhich will inform you of potentially
dangerous procedures. The instructions in these warnings must be followed.
2.A
lways inspect your meter, test leads and accessories for any sign of damage or
a
bnormality before every use. If any abnormal conditions exist (eg. broken test
leads, cracked cases, display not reading, etc.) do not attempt to take any
m
easurements. Refer to Return for Repair section.
3.N
ever ground yourself when taking electrical measurements. Do not touch exposed
metal pipes, outlets, fixtures, etc., which might be at ground potential. Keep your
b
ody isolated from ground by using dry clothing, rubber shoes, rubber mats, or any
approved insulating material.
4.T
o avoid electric shock use CAUTION when working with voltages above 40 Vdc or
2
0 Vac. Such voltages pose a shock hazard.
5. Never exceed the maximum allowable input value function when taking a
m
easurement. Refer to the specifications on page 1 for maximum inputs.
6. Never touch exposed wiring, connections or any live circuit when attempting to take
measurements.
7.D
o not attempt to operate this instrument in an explosive atmosphere (i.e. in the
presence of flammable gases or fumes, vapor or dust).
8.W
hen testing for the presence of voltage, make sure the voltage function is
o
perating properly by reading a known voltage in that function before assuming that
a zero reading indicates a no-voltage condition. Always test your meter before and
a
fter taking measurements on a known live circuit.
9. Calibration and repair of any instrument should only be performed by qualified and
trained service technicians.
10.D
o not attempt calibration or service unless trained and another person, capable of
rendering first-aid and resuscitation is present.
11.D
o not install substitute parts or perform any unauthorized modification of the
i
nstrument. Return the instrument to A.W. Sperry Instruments for service and repair
to insure that safety features are maintained.
4) OPERATION
B
EFORE PROCEEDING WITH ANY MEASUREMENT, READ THE SAFETY
PRECAUTIONS SECTION 3
4
.1) PREPARATION
(
1) To ensure greatest accuracy, the pointer should be set exactly to the zero position
b
y rotating adjust screw (Fig. 1).
(2) Make certain that the pointer lock button is in the open position (Fig. 1).
4
.2) AC CURRENT MEASUREMENTS
WARNING!
This instrument is designed to take current readings on circuits with
a
maximum voltage above ground not exceeding 600 Vac. Using it
on circuits above 600 Vac poses a shock hazard to the user.
(
1) Set the range switch to the highest 300 Aac range position.
(2) Press the trigger to open the transformer jaws and clamp onto one conductor only
(
Fig.2). Read the current directly on the scale. It is recommended that the conductor
b
e placed at the center of the closed jaws for maximum accuracy.
(3) When the reading is lower than 150 A, set the range switch to the next lower range
p
osition. For maximum accuracy select the lowest range position. For maximum
accuracy select the lowest range possible without overranging the meter.
4.3 AC AND DC VOLTAGE MEASUREMENTS
W
ARNING!
T
his instrument is designed to take voltage readings up to a
maximum of 600 Vac and 60 Vdc. The “COM” terminal voltage
s
hould not exceed 500 V measured to ground potential.
D
o not exceed these maximums.
(1) Insert the red test lead into the “VOLT” terminal of the instrument and the black test
l
ead into the “COM” terminal (Fig. 4).
2
3 4
F
ig. 2 Fig. 3
Fig. 4 Fig. 5
I
ncorrect
C
orrect
P
ointer Lock Button
Pointer
Meter Zero Adjust
2) Set the range switch to the highest Vac or Vdc range position.
4) OPERATION
EFORE PROCEEDING WITH ANY MEASUREMENT, READ THE SAFETY
B
PRECAUTIONS SECTION 3
.1) PREPARATION
4
1) To ensure greatest accuracy, the pointer should be set exactly to the zero position
(
y rotating adjust screw (Fig. 1).
b
(2) Make certain that the pointer lock button is in the open position (Fig. 1).
ig. 1
F
ointer Lock Button
P
Pointer
.2) AC CURRENT MEASUREMENTS
4
Meter Zero Adjust
WARNING!
This instrument is designed to take current readings on circuits with
maximum voltage above ground not exceeding 600 Vac. Using it
a
on circuits above 600 Vac poses a shock hazard to the user.
1) Set the range switch to the highest 300 Aac range position.
(
(2) Press the trigger to open the transformer jaws and clamp onto one conductor only
Fig.2). Read the current directly on the scale. It is recommended that the conductor
(
e placed at the center of the closed jaws for maximum accuracy.
b
(3) When the reading is lower than 150 A, set the range switch to the next lower range
osition. For maximum accuracy select the lowest range position. For maximum
p
accuracy select the lowest range possible without overranging the meter.
(
(3) Connect the test leads to the circuit under test (Fig.5) and read the voltage directly
n the scale. For Vdc measurements the red test lead should be connected to the
o
ore positive potential in order that the pointer deflects upscale.
m
4) When the reading is lower than 300 Vac, set the range switch to the next lower
(
ange position. For maximum accuracy select the lowest range possible without
r
overranging the meter.
4.4) RESISTANCE MEASUREMENTS
ttempting resistance measurements on live circuits can cause electrical shock,
A
amage to the instrument and damage to the equipment under test. Resistance
d
easurement must be made on de-energized (DEAD) circuits only for maximum
m
personal safety. The fuse protection installed in this instrument will reduce the pos-
ibility of damage to the instrument but not necessarily avoid all damage or shock
s
azard.
h
Never jump out the protective fuse. Replace the fuse with AWS part F-1 or
pproved equal. Only use fuses that are quick acting and have high current inter-
a
rupting capacities.
1) Test the circuit to make sure it is de-energized. Refer to section 4.3 on how to
(
test for voltage.
2) Set the range switch to the desired ohm range position. Insert the red test lead into
(
he “OHM” terminal and the black test lead into the the “COM” terminal (Fig. 6).
t
WARNING!
F
ig. 2 Fig. 3
F
(3) With the test leads open set the pointer over the“∞” (infinity‚ mark at the left end of
t
(4) With the test leads shorted set the pointer over the “0” mark at the right end of the
ncorrect
orrect
C
I
4.3 AC AND DC VOLTAGE MEASUREMENTS
ARNING!
W
his instrument is designed to take voltage readings up to a
T
maximum of 600 Vac and 60 Vdc. The “COM” terminal voltage
hould not exceed 500 V measured to ground potential.
s
o not exceed these maximums.
D
(1) Insert the red test lead into the “VOLT” terminal of the instrument and the black test
ead into the “COM” terminal (Fig. 4).
l
Fig. 4 Fig. 5
o
Note: When this adjustment does not bring the pointer over the “0” mark replace the
5) Connect the test leads to the circuit under test (Fig.8) and read the resistance
(
directly on the scale. Multiply the reading by either 1k or 10 k depending upon the
r
he ohm scale, using the zero adjust screw.
hm scale, using the ohm zero adjust knob (Fig. 7).
attery.
b
ange you selected.
Fig. 8 Fig. 9
3 4
(
2) Set the range switch to the highest Vac or Vdc range position.
(3) Connect the test leads to the circuit under test (Fig.5) and read the voltage directly
o
n the scale. For Vdc measurements the red test lead should be connected to the
m
ore positive potential in order that the pointer deflects upscale.
(
4) When the reading is lower than 300 Vac, set the range switch to the next lower
r
ange position. For maximum accuracy select the lowest range possible without
overranging the meter.
4.4) RESISTANCE MEASUREMENTS
WARNING!
A
ttempting resistance measurements on live circuits can cause electrical shock,
d
amage to the instrument and damage to the equipment under test. Resistance
m
easurement must be made on de-energized (DEAD) circuits only for maximum
personal safety. The fuse protection installed in this instrument will reduce the poss
ibility of damage to the instrument but not necessarily avoid all damage or shock
h
azard.
Never jump out the protective fuse. Replace the fuse with AWS part F-1 or
a
pproved equal. Only use fuses that are quick acting and have high current inter-
rupting capacities.
(
1) Test the circuit to make sure it is de-energized. Refer to section 4.3 on how to
test for voltage.
(
2) Set the range switch to the desired ohm range position. Insert the red test lead into
t
he “OHM” terminal and the black test lead into the the “COM” terminal (Fig. 6).
(3) With the test leads open set the pointer over the“∞” (infinity‚ mark at the left end of
t
he ohm scale, using the zero adjust screw.
(4) With the test leads shorted set the pointer over the “0” mark at the right end of the
o
hm scale, using the ohm zero adjust knob (Fig. 7).
Note: When this adjustment does not bring the pointer over the “0” mark replace the
b
attery.
(
5) Connect the test leads to the circuit under test (Fig.8) and read the resistance
directly on the scale. Multiply the reading by either 1k or 10 k depending upon the
r
ange you selected.
F
ig. 6 Fig. 7
F
ig. 1
Fig. 8 Fig. 9
Meter Zero Adjust
4.5) TEMPERATURE MEASUREMENTS
(
1) Set the range switch to the TEMP position.
(2) With the test leads shorted set the pointer over the “CAL” mark at the right end of
t
he temperature scale, using the ohm zero adjust knob.
(3) Remove the test leads from the instrument. Insert the red banana plug of the
t
emperature probe Model TP-7060 into the “OHM” terminal and the black banana
p
lug into the “COM” terminal (Fig.9).
(4) Apply the prod of the temperature probe to the object under test and read the
t
emperature reading directly on the temperature scale.
Note: Do not attempt to measure the temperature of energized (live) metal parts. Use
o
nly on de-energized contacts. Take the temperature reading approximately 30
s
econds after the prod is applied.
4.6) HOW TO USE POINTER LOCK
(
1) Slide the pointer lock button to the left. This allows easy readings in dimly lit or
c
rowded cable areas (Fig. 10).
4.7) BATTERY & FUSE REPLACEMENT
(1) The battery and fuse are installed inside the case (Fig. 10).
(
2) Remove the screw on the back of the case for battery and fuse replacement
(Fig. 11). Replace only with AWS fuse part F-1 or approved equal.
1
/2A, 250 V, 1/4” x 1-1/4” Fast acting High Current interrupting style fuse.
C
AUTION: For continued protection against fire, replace only with fuse of the specified
voltage current and rupture speed ratings.
5
) RETURN FOR REPAIR
B
efore returning your instrument for repair make sure the failure to operate is not
c
aused 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
o
perate properly then send it back freight prepaid to:
A.W. Sperry Instruments Inc.
2
45 Marcus Blvd.
H
auppauge, NY 11788
Include all accessories and a note explaining what is wrong with the instrument. Should
y
ou 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.
LIFETIME LIMITED WARRANTY
T
he attention to detail of this fine snap-around instrument is further enhanced by
the application of A.W. Sperry’s unmatched service and concern for detail and reli-
a
bility. These A.W. Sperry snap-arounds are internationally accepted by craftsman
a
nd servicemen for their unmatched performance. All A.W. Sperry’s snap-around
instruments are unconditionally warranted against defects in material and work-
m
anship under normal conditions of use and service; our obligations under this
warranty being limited to repairing or replacing, free of charge, at A.W. Sperry’s
s
ole option, any such A.W. Sperry snap-around instrument that malfunctions under
n
ormal operating conditions at rated use. 1
REPLACEMENT PROCEDURE
Securely wrap the instrument and its accessories in a box or mailing bag and ship
p
repaid to the address below. Be sure to include your name and address, as well
a
s the name of the distributor, with a copy of your invoice from whom the unit was
p
urchased, clearly identifying the model number and date of purchase.
A.W. SPERRY INSTRUMENTS INC.
A
TT: Customer Service Dept.
245 Marcus Blvd.
Hauppauge, NY 11788
1
T
he warranty is not applicable if the instrument has been misused, abused, subjected
t
o loads in excess of specifications, has had unauthorized repair or has been improperly
assembled or used.
A.W. Sperry Instruments Inc.
The Professional’s Choice
245 Marcus Blvd., Hauppauge, NY 11788
P
hone 1-800-645-5398 or 631-231-7050
FAX: 631-434-3128 • Email: cat@awsperry.com
5
6 1
Fig. 10 Fig. 11
LIFETIME LIMITED WARRANTY
he attention to detail of this fine snap-around instrument is further enhanced by
T
the application of A.W. Sperry’s unmatched service and concern for detail and reli-
bility. These A.W. Sperry snap-arounds are internationally accepted by craftsman
a
nd servicemen for their unmatched performance. All A.W. Sperry’s snap-around
a
instruments are unconditionally warranted against defects in material and work-
anship under normal conditions of use and service; our obligations under this
m
warranty being limited to repairing or replacing, free of charge, at A.W. Sperry’s
ole option, any such A.W. Sperry snap-around instrument that malfunctions under
s
ormal operating conditions at rated use. 1
n
OPERATING INSTRUCTIONS
A
.W. Sperry Instruments Inc.
AC SNAP-AROUND WITH DC VOLT RANGE
REPLACEMENT PROCEDURE
Securely wrap the instrument and its accessories in a box or mailing bag and ship
repaid to the address below. Be sure to include your name and address, as well
p
s the name of the distributor, with a copy of your invoice from whom the unit was
a
urchased, clearly identifying the model number and date of purchase.
p
A.W. SPERRY INSTRUMENTS INC.
TT: Customer Service Dept.
A
245 Marcus Blvd.
Hauppauge, NY 11788
1
he warranty is not applicable if the instrument has been misused, abused, subjected
T
o loads in excess of specifications, has had unauthorized repair or has been improperly
t
assembled or used.
MODELS TD-2608 & TD-2608A
A.W. Sperry Instruments Inc.
The Professional’s Choice
245 Marcus Blvd., Hauppauge, NY 11788
hone 1-800-645-5398 or 631-231-7050
P
FAX: 631-434-3128 • Email: cat@awsperry.com
®
) FEATURES
1
UL Listed
•
• Five Functions, 12 Ranges.
Tear drop shaped jaws for ease of use in crowded cable areas.
•
• Industry standard safety shielded banana plugs and recessed input terminals.
DC voltage range especially useful for checking emergency battery operated power
•
supply systems, etc.
Pointer lock device to freeze readings
•
2) SPECIFICATIONS
Range: AC Current 6/15/60/150/300 Aac
C Voltage 150/300/600 Vac
A
C Voltage 60 Vdc
D
Resistance 1-kΩ/10Ω (30Ω/300Ω mid-scale)
emperature -20 to +150°C (-4 to + 302°F)
T
ccuracy:AC Current ±3% of full scale
A
AC Voltage ±3% of full scale
C Voltage ±3% of full scale
D
Resistance ±2% of scale length
emperature ±9°F @ 32 to 212°F
T
6 1
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