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Simpson 260-8XPI Скачать руководство пользователя страница 16

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3.7.2

DC Voltage Measurement 0-2.5 Through 0-250V Range

a.

Set the function switch at +DC.

b.

Plug the black test lead into the -COMMON jack and the red test lead into the
+jack.

c.

Set the range switch at one of the five voltage range positions marked 2.5V,
10V, 25V, 50V or 250V.

NOTE:

When in doubt as to the voltage present, always use the highest voltage

range as a protection to the Instrument. If the voltage is within a lower range, the
switch may be set for the lower range to obtain a more accurate reading. Be sure
power is off in the circuit being measured and all capacitors discharged.
d.

Connect the black test lead to the negative side of the circuit being measured
and the red test lead to the positive side of the circuit.

e.

Turn on the power in the circuit being measured.

f.

Read the voltage on the black scale marked DC. For the 2.5V range, use the
0-250 figures and divide by 100. For the 10V, 50V, and 250V ranges, read the
figures directly. For the 25V range, use the 0-250 figures and divide by 10.

NOTE:

Turn off power to the circuit and wait until the meter indicates zero before

disconnecting the test leads.

3.7.3

DC Voltage Measurement 0-500V Range

Use extreme care when working with high voltage circuits. Do not touch the In-
strument or test leads while power is on in the circuit being measured.
Before proceeding with the following steps, review the Safety Precautions in Para-
graph 3.2.
a.

Set the function switch at +DC.

b.

Set the range switch at the 250V/500V/1000V position.

c.

Plug the black test lead into the -COMMON jack and the red test lead into the
500V jack.

d.

Make sure power is off in the circuit being measured and all capacitors dis-
charged. Connect the black test lead to the negative side of the circuit being
measured and the red test lead to the positive side of the circuit.

e.

Turn on power in circuit being measured.

f.

Read the voltage using the 0-50 figures on the black scale marked DC.

Multiply the reading by 10.

NOTE:

Turn off power to the circuit and wait until the meter indicates zero before

disconnecting the test leads.

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Содержание 260-8XPI

Страница 1: ...Simpson 260 Series 8XPI Volt Ohm Milliammeters Instruction Manual...

Страница 2: ...defined in Section 11 6 1 of ANSI C 39 5 Technical Assistance SIMPSON ELECTRIC COMPANY offers assistance Monday through Friday 8 00 am to 4 30 pm Central Time by contacting Technical Support or Custo...

Страница 3: ...ent of Unknown Voltage or Current 15 3 6 Test Leads 15 3 7 DC Voltage Measurement 15 3 7 1 DC Voltage Measurement 0 250 mV Range 15 3 7 2 DC Voltage Measurement 0 2 5 Through 0 250V Range 16 3 7 3 DC...

Страница 4: ...4 3 15 Continuity Tests 24 4 OPERATING SERVICING 24 4 1 Removing the Instrument Case 24 4 2 Battery and Fuse Replacement 25 4 3 Fuse Protection 25 4 5 Care 26 Contents Continued...

Страница 5: ...is provided regardless of polarity The relay operates at a uniform percent of overload since the indicating instrument circuit is common to all ranges When actuated by an overload the relay contacts w...

Страница 6: ...sed NOTE If the 260 fails to indicate a reading the 1 or 2 Amp fuse may be burned out Refer to paragraph 4 2 for fuse replacement Use only the specified fuse type The 0 10 A range is not fused The shu...

Страница 7: ...position is preferable for greater accuracy since the Instrument is calibrated in this position 1 7 Test Leads Each Instrument is furnished with one pair Catalog Number 00125 of probe type test leads...

Страница 8: ...X 100 2 of Arc R X 10 000 2 of Arc 10 DECIBELS Range 20 to 10 dB 8 to 22 dB 0 to 30 dB 6 to 36 dB 20 to 50 dB Reference Level With zero dB power level equal to 1 mW across a 600 line 11 BATTERIES Volt...

Страница 9: ...warnings alerting the user to haz ardous operating and service conditions This information is flagged by CAUTION or WARNING symbols throughout the publication where applicable and is de fined on the...

Страница 10: ...ng a split core for accommodating the conductor which carries the current being measured The current carrying conductor becomes the transformer pri mary and a coil in the Amp Clamp serves as the secon...

Страница 11: ...nearest Authorized Service Center or the factory directly Give full details of any installation difficulties and include the Instrument model number series number and date of purchase Service data or...

Страница 12: ...itute for technical manuals covering the equipment being measured Always refer to the equipment manual and its specific warnings and instructions and observe them as well as those contained herein a T...

Страница 13: ...se VOM is to be used to make electrical measurements on blasting circuits or blasting caps 3 2 Operational Items and Features Table 3 1 describes the function of all the items used to operate the Inst...

Страница 14: ...t the screw located in the cover below the center of the dial Use a small screwdriver to turn the screw slowly clockwise or counterclockwise until the pointer is exactly over the zero mark at the left...

Страница 15: ...ge to the lower range 3 6 Test Leads These are provided with accessory screw on alligator clips which may be attached to the probe tips As well as eliminating the need to hand hold test prods to a cir...

Страница 16: ...he figures directly For the 25V range use the 0 250 figures and divide by 10 NOTE Turn off power to the circuit and wait until the meter indicates zero before disconnecting the test leads 3 7 3 DC Vol...

Страница 17: ...wer momentarily into a short circuit before the fuse breaker opens the cir cuit Make certain that the Instrument switches are set properly jacks are con nected properly and that the circuit power is t...

Страница 18: ...test leads while the power is on the circuit being measured Use extreme care when working in high voltage circuits Do not handle the Instru ment or test leads while the circuit being measured is ener...

Страница 19: ...ill not indicate if the switch is incorrectly set to a DC position b Set the range switch at 250V 500V 1000V position c Plug the black test lead into the COMMON jack and the red test lead in the 1000V...

Страница 20: ...cale on the 260 8 serves this purpose and is calibrated to a reference level zero dB of 0 001 watt into 600 ohms The scale calibration of 20 to 10 dB is for the 0 2 5V range zero dB 0 775V Higher rang...

Страница 21: ...rcuit Connect the red test lead to the positive side and the black test lead to the negative side e Read the current on the black DC scale Use the 0 50 figures to read directly in microamperes NOTE Fo...

Страница 22: ...om the circuit while the circuit is energized Doing so may damage the test jacks or leads and the arcing may be hazardous to the operator Turn off circuit power and wait for the meter reading to drop...

Страница 23: ...nge d Observe the reading on the OHMS scale at the top of the dial NOTE The OHMS scale reads from right to left for increasing values of resis tance e To determine the resistance value multiply the re...

Страница 24: ...To test for continuity probe the circuit or component in question An audible sound indicates continuity The higher the circuit s resistance the lower the sound level The lower the circuit s resistance...

Страница 25: ...connector leads so they rest between the cavity walls and clear the fuse terminals The extended leads are placed between the battery holder and the top wall of the case NOTE 1 Amp and 2 Amp fuse repl...

Страница 26: ...areas which are subject to tempera ture and humidity extremes vibration or mechanical shock dust or corrosive fumes or strong electrical or electromagnetic interferences e Verify Instrument accuracy b...

Страница 27: ...27 NOTES...

Страница 28: ...IMPSON ELECTRIC COMPANY 520 Simpson Avenue Lac du Flambeau WI 54538 0099 715 588 3311 FAX 715 588 3326 Printed in U S A Part No 06 115022 Edition 9 07 17 Visit us on the web at www simpsonelectric com...

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