PS8a101-0021

DCV+AC500V+,--

DC500V,AC500V
Peak Max.700V
DC/AC 450V

PS8a

DIGITAL MULTIMETER

This warranty is valid only within Japan.

SANWA ELECTRIC INSTRUMENT CO., LTD.
Dempa Bldg, 4-4 Sotokanda 2-Chome Chiyoda-ku, Tokyo, Japan

T-2--1-

ON/OFF/////

DC/AC500V(AUTO)

AUTO/*:-3--4--5--7--8--9--6-

OL

-10-

0.7%rdg+3dgt)
M%rdg+3dgt)
10M
2 %rdg+10dgt)

11M%rdg+5dgt)

10M

DC/AC 500V
V2.0%rdg+5dgt)

5.0%rdg+5dgt)
10%rdg+5dgt)
10120
0.4V
1.5V

10cm

-11-

DC[mV]
100.0[mV]
400mV0.7%rdg dgt)
100.0mV0.7%)= .0[mV]
100[mV]
100.0mV0.7%rdg dgt)
99.0[mV] 101.0[mV]
400.0[mV][dgt]
0.3[mV]-12--13--14-

[1] SAFETY PRECAUTIONSThis instruction manual explains how to use your new digital
multimeter PS8a safely, Before use, please read this manual
thoroughly. After reading it, keep it together with the product forreference to it when necessary.
The instruction manual given under the heading of must befollowed to prevent accidental burn or electrical shock.
1-1 Explanation of Warning Symbols
The meaning of the symbols used in this manual and attachedto the product is as follows.
:Very important instruction for safe use.
The WARNING messages are intended to prevent accidents tooperating personnel such as burn and electrical shock.
The CAUTION message are intended to prevent damage tothe instrument.
Alternating current (AC)PS8aBuzzer

DIGITAL MULTIMETER+-Plus

Direct current (DC)
Diodeequipment (e.g. motors) that generates induced orsurge voltage since it may exceed the maximum
allowable voltage.
5.Never use meter if the meter or test leads aredamaged or broken.
6.Never use uncased meter.
7.Be sure to disconnect the test pins from the circuit whenchanging the function.
8.Before starting measurement, make sure that thefunction and range are properly set in accordance withthe measurement.
9.Never use the meter with wet hands or in a damp
environment.
10.Be sure to use test leads of the specified type.
11.Never open tester case except when replacing batteries.
Do not attempt any alteration of original specifications.
12.Never use the meter near place where there are strong
electromagnetic Waves.
13.To ensure safety and maintain accuracy, calibration andcheck the tester at least once a year.
14.Indoor use only.

Function

To ensure the meter is used safely, be sure to observe theinstruction when using the instrument.
1.Never use meter on the electric circuits that Exceed 1kVA.
2.Pay special attention when measuring the voltage of
AC33Vrms(46.7V peak) or DC70V or more to avoid injury.
3.Never apply an input signal exceeding the maximumrating input value.
4.Never use meter for measuring the line connected with-1-Test pins
Test porbe (Red)Test porbe (Black)
Lead Reel
Case
Panel
Function switch
Range Hold switch
3-2 Display
DC

Max. Rating

Max. Overload

input value

protection input

DC500V

DC500V, AC500V

AC500Vor Peak 700V

Never apply

AC/DC450V

DCV
ACV+, -voltage* A C v o l ta g e i s r e g u l a t e d b y r m s o f s i n e w a v e .

Low battery indication

Auto range mode-3--2Start-up

3-1 MultimeterDisplayInputTerminals[4] DESCRIPTION OF FUNCTIONS[3] NAMES OF COMPONENT UNITS

2-2 Features
Auto Power off function (15 mins)
Shell type pocket size multimeter.

1-3 Overload protection

WARNING

Dempa Bldg, Sotokanda 2-Chome Chiyoda-ku, Tokyo, Japan

2-1 Applications
This instrument is portable digital multimeter designed formeasurement of weak current circuits.

RsistorMinus

1-2 Warning instruction for Safe use

SANWA ELECTRIC INSTRUMENT CO., LTD.

[2] APPLICATIONS AND FEATURES

Function switch
Turn this switch, to turn on and off the power and to selectthe functions of ACV, DCV,, ,. .

STARTInner Battery Check: Set Diode test
function. Measure voltage between test
leads. Inner battery voltage is 2 times ofreading.

Main unit or
test leads
damaged?

Low battery indication
Mark is indicated when low battery.
Over display
OL indication when input is over maximum rating input
value except ACV and DCV functions.
RANGE HOLD switch
Pressing this switch once sets the manual mode and therange is fixed. AUTO on the display disappears.
Once the manual mode is set, the range moves each time
this switch is pressed. Checking the unit on the display andthe place of the decimal point, select a desired range. To
return to the auto mode, keep pressing this switch anodal
AUTO on the display appears.

[5] MEASUREMENT PROCEDURE

Yes

B

No
A. Set the function
at.
B. Short the red andblack test pins.

when changing the function.
3.Always keep your fingers away from test pins
when making measurements.
5-2 Voltage measurement
5-2-1 DCV measurement: Maximum rating input value
DC500V
Range: 400.0mV, 4.000V, 40.00V, 400.0V, 500V
The reading does not become 0 when the input terminal isshorted. But this does not bring about the influence tomeasurement.
“ - “ indication appears when applying test pins reversed.

WARNING
Never input voltage

AThe buzzer
sounds?

more than 500VDC

NoYes
No problem
Start measurements

Do not use.
Please repair the meter.

5-1 Start-up Inspection

WARNING-4-

1.Be sure to pre-check the meter before use.
2.Do not use a damaged meter and test leads.
3.Check continuity of test leads.
4.When a battery exhaust mark appears in the display,recharge battery.
-5-5-2-2 ACV measurement: Maximum rating input value
AC500V
Range: 4.000V, 40.00V, 400.0V, 500V
Accuracy is guaranteed int eh case of sine wave
(Bandwidth 40Hz ~ 400Hz)
In the AC4V range, the reading does not become 0 when
no input signal. But this does not bring about theinfluence to measurement.

5-3 Resistance measurement: Max. rating input value 40M
ohm
Range: 400.0 ohm, 4.000k ohm, 40.00k ohm, 400.0k ohm,
4.000M ohm, 40.00M ohm
Open voltage is approx. DC 0.4V.
If a finger touches a test pin during measurement, thereading will be influenced by the resistance in the humanbody.

ACMinus

Decimal pointUnit

WARNING
1.Never apply an input signal exceeding the maximum
rating input value.
2.Be sure to disconnect the test pins from the circuit-6--7-

5-4 Checking Continuity ( )Open voltage is approx. DC 0.4V.
Buzzer sounds at less than 10 ohm to 120 ohm.

5-5 Testing Diode ( )Diodes is good when following readings appear.
Open voltage is approx. DC 1.5V.

WARNING
Never input
Voltage or current

WARNING
Never input voltage

WARNING
Never input

WARNING
Never input

more than 500VAC

Voltage or current

Voltage or current

Reading is Forwarding voltage drop

6-4 Estimated time of Recharge and usable[6] MAINTENANCE
6-1 Maintenance and inspection
1.Appearance: Is the appearance not damaged by falling?
2.Test leads: Is the cord of the test leads not damaged? Or isthe core wire not exposed at any place of the test leads?
If your meter falls in any of the above items, do not use itand have it repaired or replace it with a new one.
6-2 Calibration
The manufacturer may conduct the calibration andinspection. For more information, please contact the dealers.
6-3 Storage-10--9--8-

Light Power5,000 LUX
(at a window in cloudy)
10.000 LUX (Approx. 10cm fromfluorescent lamps 15W x 2 pcs. )30,000 LUX or more
(at a window in fine whether)[8] SPECIFICATIONSTIme ofrecharge
12 hours

Estimate
usable time
3 hours

5 hours

5 hours

5 hours

6 hours[7] AFTER-SALES SERVICE

CAUTION

1.The meter are not resistant to volatile solvent andmust not be cleaned with thinner or alcohol. For
cleaning, use dry, soft cloth and wipe it lightly.
2.The meter are not resistant to heat. Do not place theinstrument near heat-generating devices (such as asoldering iron).
3.Do not store the instrument, in a place where it may
be subjected to vibration or from where it may fall.
4.For storing the instrument, avoid hot, cold or humid
places or places under direct sunlight or wherecondensation is anticipated.

7-1 Repair
If the meter fails during use, check the following items before
sending it for repair.
Is the test lead broken?
Is the battery exhausted? Please recharge the battery.
We repair defective product(s) at cost. When sending it to us
for repair, please use appropriate packing material.
7-2 For information or Enquiries
If you need information regarding purchase of repair parts or if
you have any other sales related questions, please contact thedealer, selling agent, or maker.
7-3 SANWA web site
Http://www.sanwa-meter.co.jp
Email: exp_sales@sanwa-meter.co.jp-12--13-

8-1 General Specification
methodMeasuring method :: 3 3/4 digit, 4000 counts
Display
Range Selection : Auto and Manual ranges: “OL” indication (except AC/DC500V ranges)
Over indication
Polarity indication : Automatic Selection “-” indication
Low battery indication : Below approx. 2.4V, “ “ indication appears.
: Approx. 3 times/sec.
Sampling rate
: Average sensoring
AC sensoring
Environmental : Operation altitude < 2000m
Pollution degree IIcondition
Operating temperature : 5 ~40 , humidity range Max. 80% RH& humidity
for temperatures up to 31 decreasing
linearly to 50% RH at 40
Storage temperature: 5 ~40 , 80%RH max.
& humidity
0 ~5 , 40 ~50 , 70%RH max.
: No condensation. (Remove batteries)
Amorphous Solar Battery + Lithium ManganesePower supply: Dioxide Rechargeable Secondary Battery
Auto power off: 15 min after no operation
Power consumption : Approx. 5mW at DCV
Size.Weight: 115(H) x 57(W) x 18(D)mm, Approx85g
Instruction manual
Accessory
Note:
It may not make accurate measurement near places that there
are high-magnetic field or strong electrical field generated bytransformers, large current lines or radio transmissions
equipments.
-14-OL indication appears.
-118-2 Measurement Range and Accuracy
Accuracy assurance range: 23 5 , 80%RH max. No condensation.
Function Range

Accuracy( )400.0mV (0.7%rdg+3dgt)
4.000V

InputImpedance Remarks
100M
Approx.11M

40.00V
400.0V

(1.3%rdg+3dgt) Approx.10M

500V
4.000V

(2.3%rdg+10dgt) Approx.11M

the case of

40.00V
400.0V

Accuracy insine wave.

(2.3%rdg+5dgt) Approx.10M
Bandwidth:500V40~400Hz

400.0Open voltage: Approx

4.000k
40.00k

(2.0%rdg+5dgt) DC0.4V
The measuring current

400.0kchanges according to4.000M(5.0%rdg+5dgt) the resistance of the40.00M(10%rdg+5dgt) resistor to measure.
Buzzer sounds at less then10~120
Openvoltage:Approx.0.4V
Openvoltage:Approx1.5V

Specifications and extenrnal appearance of theproduct described above may be revised formodification without prior notice.
-15-