Olá pessoal disponibilizamos um esquema e o manual deste multímetro analógico fabricado no Japão e posteriormente no Brasil. É um instrumento de teste portátil, compacto e operado por duas pilhas de 1,5 volts cada.
KAISE
OPERATING INSTRUCTIONS
MODEL SK-20
MODEL SK-22
MODEL SK-30
V - Ω - mA
MULTITESTER
* Precision instrument for multifarious measurements.
* Meter movement is protected by dual silicon diode.
* with OFF Range and Polarity Switch
* Hight internal resistance assures more accurate measurements.
* ± 1% temperature-stabilized film resistor.
MODEL SK-20 20.000 ohms/V DC
10.000 ohms/V AC
MODEL SK-22 20.000 ohms/V DC
10.000 ohms/V AC
MODEL SK-30 10.000 ohms/V DC
10.000 ohms/V AC
SPECIFICATIONS
DC Volt: 0.25, 2.5, 10, 50, 250, 1000
AC Volt: 10, 50, 250, 1000
DC Current: 0.05mA, 2.5mA, 25mA, 250mA,
10A (SK-22 Only)
Resistance: 5KΩ, 500KΩ, 5MΩ
Decibels: -10, ~ +22, +36, +50, +56, +62 dB
Accuracy: DC Volt ± 3% (of full scale)
AC Volt ± 4% (of full scale)
DC Current ± 3% (of full scale)
Resistance ± 3% (of full scale length)
Battery: 1.5 V (UM-3) x 1
Size & Weight: 150 X 86 X 40 mm, 280 g
Accessories: 1 pair Test Leads
* Vinyl carrying case is opitional.
PRECAUTIONS
Correct knowledge about eletric measurements is necessary since electric measurements is sometimes a very dangerous work.
To eliminate possibility of injury to operator and damage to the instrument and equipment, the following precautions and measurements procedure are recommended. Mis-use, abuse and caressless cannot be prevented by any written word and is fully the operator's responsability.
Observing the followind precautions, take safe measurements.
1. Do NOT attempt to take any measurement of voltage or current higher than the maximum range of the function on this instrument.
2. Acquaint yourself with the location of high voltage in the equipment under test or in the circuit to be measured. If there is something wrong with the equipment or circuit, high voltage leaks from unespected locations, wich may cause the electric shock accidents.
3. When going to measure, take safety distance from de power supply or the circuit to prevent any part of your body from touching high voltage.
4. Do NOT check resistance in a circuit while power is on or before circuit capacitors are discharged.
5. Do not fail to confirm before every measurement that the body of this instrument and the handle insulators of the test leads attached to the instrument have no cracks or any other damage on it. Make sure that the body and the handle insulators are free of dust, grease and moisture.
6. This instrument IS NOT APPROVED for use in explosive atmosphere, vapor or dusty.
MEASUREMENT PROCEDURE
A. BATTERY
1. One pair of 1.5 (UM-3) battery is furnished with each instrument. Remove Back Case by unscrewing the mounting screws and set the battery.
2. For easy installation, first insert the negative end of the battery in the minus (-) holder and then snap the positive end of the battery into plus (+) holder. Make sure that the battery is firmly set in proper polarity.
3. For replacement use, 1.5V (UM-3), Type AA, Eveready 915 or equal.
4. If the instrument is taken out service for an extended time, remove the battery from their holders and store separately.
B. ZERO ADJUSTMENT
1. Before the measurement, for best accuracy, make certain that the point is set exactly on the Zero Line, at the left extremity of scales.
2. If off the Zero Line, turn right or left the Zero Adjust screw at middle botton of the Meter Case so that the pointer should exactly indicate the Zero Line.
3. Zero adjustment is not necessary to be repeated at every measurement, but the pointer is off the Zero Line due to change of mechanical condition.
C. TEST LEADS
1. One pair of test leads, consisting of a Red Test Lead and a Black Test Lead, is furnished with each instrument.
2. Each test lead consists of one Banana Plug with a short insulator and one Test Prod with a long handle insulator.
3. The Banana Plugs fit in the terminals on the Front Case and the Test Prods are used to make contact with the circuit.
D. ACCURACY
1. For best accuracy, select a suitable range, so that the pointer should read in the upper half of the scale.
E. RANGE SWITCH and POLARITY SWITCH
1. Prior to use, SET RANGE SWITCH TO THE HIGHEST RANGE OF THE FUNCTION TO BE MEASURED.
2. Work down to lower sucessive ranges of the function until the points reads in the upper half of the scale.
In this fashion, he instrument is protected against overloads where circuit values are not know.
3. When finished with measurement of one function, remove Test Leads completely from the circuit if another is to be measured.
FIRST set the range switch to the highest range of the new function and the polarity switch to its proper position.
THEN take the measurement.
F. OFF RANGE
To protect meter movement from shock or vibration, set Range Switch to OFF position whenever the instrument is not in use.
G. NOTES
1. The meter is diode protected against overloads. However, damage to the instrument can results from heavy loads beyond the rating the instrument, from measuring voltage on the resistance range, from impressing AC line voltage across the currente ranges. Hence make certain that the range switch is in proper position and that the reading value is within the range to be used before taking any measurements.
2. If approximate reading, wich of course should be below the highest range, is not know, start with the highest range for safety and work down to lower ranges.
_________________________________________________
Before Taking Any Measurements.
AWAYS REMEMBER TO:
CAREFULLY CHECK THE POSITION OF THE RANGE SWITCH
AND THE RANGE TO BE USED.
_________________________________________________
HOW TO MEASURE DC VOLTAGE
1. Set range switch to desired DC. V range, if know, or to highest range, if value is not know. Set Polarity Switch to +DC position.
2. Insert Black Banana Plug of test lead into COM (-) Terminal and Red Banana Plug of test lead into COM (+) Terminal.
As a habit, use Black Test Lead for (-) polarity and Red Test Lead for (+) polarity.
3. Observing polarity, touch one side of the circuit to be measured with Black Test Prod and the other side with Red Test Prod.
NOTE: When taking voltage measurements, AC or DC, always connect the instrument IN PARALLEL with the circuit being measured.
4. If the pointer deflects to the left or zero line, set Polarity Switch to - DC position.
In this manner, it will not be necessary to change position of test leads on the circuit.
5. Read voltage on the second black arc down, marked DC.
6. Read the value as follows.
On 1000 V range, read 0 to 10 numerals and multiply by 100
On 250 V range, read 0 to 25 numerals and multiply by 10
On 50 V range, read 0 to 5 numerals and multiply by 10
On 10 V range, read 0 to 10 numerals directly
On 2.5 V range, read 0 to 25 numerals and divide by 10
On 0.25 V range, read 0 to 25 numerals and divide by 100
HOW TO MEASURE AC VOLTAGE
1. Set Range switch to desired AC. V range if know, or to highest range, if not know. Set polarity Switch to AC position.
2. Insert Black Banana Plug into COM (-) Terminal and Red Banana Plug into (+) Terminal.
3. Touch one side of the circuit to be measured with Black Test Prod and the other side with Red Test Prod. The connection should be IN PARALLEL with the circuit being measured.
4. Read the voltage on the second black arc down, marked AC.
NOTE: When measuring on 10 V range, read the third red arc down, marked AC 10 V only.
5. Read value as DC voltage.
6. NOTE: For AC voltage or (decibel) measurements in the presence of a DC voltage (such as found on the primary side of an audio out-put tranformer), insert test leads into COM (-) and OUT Terminals. An internal isolating capacitor blocks DC from entering the meter.
HOW TO MEASURE DC CURRENT
1. Set Range switch to desired DC. mA range if know, or to highest DC. mA range, if not know. Set polarity Switch to +DC position.
2. Insert Black Banana Plug into COM (-) Terminal and Red Banana Plug into (+) Terminal.
NOTE: When measuring on 10A DC, set Range Switch to 250 & 10A DC. mA range, then insert Black Banana Plug into COM (-) Terminal and Red Banana Plug into +DC 10A Terminal.
3. Open one side of the circuit to be measured.
4. Observing polarity, touch one side of the circuit with Black Test Prod and the other side with Red Test Prod.
NOTE: When taking current measurements, aways connect the instrument IN SERIES with the circuit to be measured.
5. Read the current on the second black arc down, marked DC. Read the value same as DC voltage.
HOW TO MEASURE RESISTANCE
1. Set Range switch to desired OHMS, R X 1, R X 100 or R X 1K.
Set Polarity Switch to OHMS position.
2. Insert Banana Plugs into COM (-) and (+) Terminals.
3. Short Tests Prods togheter and adjust OHM ADJ. knob until the pointer is exactly on the Zero Line of the first blue arc down, marked OHMS. Zero Line on this arc is at extreme right.
NOTE: If zero ohm control cannot be adjusted, replace the battery.
_________________________________________________
MAKE CERTAIN THAT THE CIRCUIT TO BE MEASURED IS
COMPLETELY DE-ENERGIZED
_________________________________________________
4. Unshort Test Prods and apply across the circuit to be measured.
5. Read on the first blue arc down and multiply by the selected OHMS range multiplier X 1, X 100 and X 1K to obtain the value in ohms.
HOW TO READ DECIBELS
1. Decibels are measured as an AC function. Set Range switch to desired AC V range.
2. Use COM (-) and (+) terminals
NOTE: When decibel measurement in the presence of a DC voltage is taken, use COM (-) and OUT Terminals. An internal isolating capacitor blocks DC from entering the meter.
NOTE: The OUT Terminal has a 0.047 microfarads condenser in series with it to filter out the DC voltage components in the circuit being measured. Do not use the OUT terminal if DC voltage component is more than 400V DC, the maximum rating of the condenser.
3. Read dB by using dB table on the scale.
Examples: On 10V AC range, read direct.
On 250V AC range, add 28 dB to the reading.
GENERAL USAGE & MAINTENANCE
For best and safety performance, the following maintenance and examination are required.
1. Aways keep the instrument and test leads clean, dry and without damages.
2. Do not polish the Meter Case or attempt to clean it with any cleaning fluid, gasoline, benzine, etc. If necessary use silicon oil or anti-static fluid.
3. Avoid severe mechanical shock or vibration, extreme temperature or very strong magnetic field.
4. Remove the battery when not in use for antended time since ex-rasuted battery migth leak electrolyte and corrod the internal components.
5. Do not modify any existing circuit in the instrument to read higher values than published.
KAISE ELECTRIC WORKS, LTD.
422 Oaza Hayashinogo, Weda - city, Nagano - Pref., Japan 386
TELEPHONE UEDA (0268) 35 - 1600 (REP)
TELEX 3327409 KAISE J.
CABLE ADRESS: KAISE UEDA JAPAN - Printed in Japan
