[1] SAFETY PRECAUTIONS: Before use,
read the following safety precautions

1–2 Warning Instruction for Safe UseThis instruction manual explains how to use your new
digital multimeter PM11 safely. Before use, please readthis manual thoroughly. After reading it, keep it together
with the product for reference to it when necessary.
Using this product in ways not specified in this manual
may damage its protection function.
The instruction given under the heading “ ! WARNING ”
must be followed to prevent accidental burn or electricalshock.

To ensure that the meter is used safely, be sure toobserve the instruction when using the instrument.
1. Never use meter on the electric circuit that exceed
3.6 k VA.
2. Pay special attention when measuring the voltage
of AC 33 Vrms (46.7 Vpeak) or DC 70 V or more to
avoid injury.
3. Never apply an input signals exceeding the
maximum rating input value.
4. Never use meter for measuring the line (i.e. motors)
that generates induced or surge 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. When connecting and disconnecting the test leads,
first connect the ground lead (black). Whendisconnecting them, the ground lead must be
disconnected last.
8. Always keep your fingers behind the finger guards
on the probe when making measurements.
9. Be sure to disconnect the test pins from the circuit
when changing the function.
10. Before starting measurement, make sure that thefunction and range are properly set in accordancewith the measurement.
11. Never use meter with wet hands or in a damp
environment.

1–1 Explanation of Warning Symbols
The meaning of the symbols used in this manual andattached to the product is as follows.

: DC～ : AC: Double insulation: Continuity: Battery

–1–

(DCV)

Ω·

Input terminal

(ACV)

=+
(Red)

·Ω

=–
(Black)Maximum rating Maximum overload
input value
Protection input
DC 500 V
AC 500 V! Voltage andcurrent input
prohibited

DC 500 V
AC 500 V

3–2 Display• Pocket size for easy carrying.
• The instrument has been designed in accordance with• Auto power off. (30min.)• Test leads storable in the main uni t.

• Test leads fixing feature to enable one-hand measurement.

• Voltage and resistance functions in full auto range.
• Main unit and lit quick open/close mechanism.

• The main unit case and the circuit board is made of fire
retarding materials.

Note : AC voltage is regulated by rms value of sinusoidal wave.

○ Power Switch and Function Switch

Turn this switch to turn on and off the power andto select the functions of DCV, ACV, Ω,, .

○ Battery Voltage Drop Warning Display

If the internal battery has been consumed and thevoltage drops, the display shows BT . If it isflashing or lit, replace the battery with a new one.

○ Auto power off

Never apply voltage to the input terminals.

Measures sine-wave a.c. voltages such as lighting voltages.

1) Application

4 ranges from 4 V to 500 V

Resistance of resistors and circuits are measured.

3) Measurement Procedure Set the function switch at2) Measuring Ranges(ACV) range.

 Apply the red and black test pins to the circuit to measure.
 Read the value on the display.
 After measurement, remove the red and black test pinsfrom the circuit measured.

–4–

 Set the function switch at Ω range.
 Apply the red and black test pins to an object to measure.
 Read the value on the display.
from the object measured.

● This instrument employs the average measurement
system and some error is made to the display of
waveforms other than sine waves.
● The accuracy guaranteed frequency range is 45 Hz to
1 kHz.

– 16 –– 17 –

5–5 Testing Diode

! WARNING
Never apply voltage to the input terminals.
1) Application

1) Application
Checking the continuity of wiring and selecting wires.
2) How to Use
range.
 Set the function switch at
 Apply the red and black test pins to a circuit or conductor
to measure.
 The continuity can be judged by whether the buzzer
sounds or not.
 After measurement, release the red and black test pinsfrom the object measured.

– 18 –

 Make sure that the display is the same as that when thetest leads are released.
 After measurement, release the red and black test pinsfrom the object measured.
Judgement:When the items  and  are normal, thediode is good.

The quality of diodes is tested.
2) How to Use Set the function switch atrange.
 Apply the black test pin to the cathode of the diode andthe red test pin to the anode.
 Make sure that the display shows a diode forward voltagedrop.
 Apply the red test pin to the cathode of the diode andthe black test pin to the anode.

● Open voltage between input terminals is about the sameas the voltage of battery.

Insert the red or black test leads in the fixing position on the
top left corner of the main unit.

• Is the appearance not damaged by falling?

2) Test leads• Are you having the problem with “the test leads aredamaged, and the cable core and white coating insideof the test leads are exposed”?
(We use double insulation test leads. If you could see
the test leads as above condition, you need to change
the new one)
Please do not use as it is, if applicable, of the above items.
Please have it serviced.

6–2 Calibration
The calibration and inspection may be conducted by
the dealer. For more information, please contact the dealer.

measure is less than about 35 Ω.
● The input terminals release voltage is about 1.2 V.

– 19 –– 20 –

6–3 Battery Replacement◎ How to store test leads.

 Test rod of red-black test leads is let in to store space
first of all. (Lead wire is paid outside.) Red-black lead wire of the test lead is bundled and it ispulled toward a display and it fold in two and a folded
place is put inside the upper part of store space.
 An end of lead wire is accepted inside the lower part ofstore space.

! WARNING

1. If the rear case or the battery lid is removed with
input applied to the input terminals, you may getelectrical shock. Before starting the work, always
make sure that no input is applied.
2. Before starting the work, be sure to turn OFF themain unit power and release the test leads fromthe circuit.
〈 How to Replace 〉 Remove the battery lid screw with a screwdriver.
 Remove the battery lid.
 Take out the battery and replace it with a new one.
 Attach the battery lid and fix it with the screw.

– 22 –– 21 –

6-4 Storage! CAUTION
Set a battery with its polarities facing in the correct
directions.
Batteris when the meter is shipped:
A battery for monitoring has been installed prior to
shipment from the factory. It may be discharged before
the expiration of the described battery life.
*The battery for monitoring is a battery used to checkthe functions and performance of the product.

7-2 Repair! CAUTION

1. The panel and the case are not resistant to volatilesolvent and must not be cleaned with thinner or alcohol.
For cleaning, use dry soft cloth and wipe it lightly.
2. The panel and the case are not resistant to heat. Do
not place the instrument near heat-generating devices(such as a soldering iron).
3. Do not store the instrument in a place where it may besubjected 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] AFTER-SALE SERVICE
7-1 Warranty and Provision
Sanwa offers comprehensive warranty services to its endusers and to its product resellers. Under Sanwa's general
warranty policy, each instrument is warranted to be free fromdefects in workmanship or material under normal use for theperiod of one (1) year from the date of purchase.
This warranty policy is valid within the country of purchase
only, and applied only to the product purchased from Sanwa
authorized agent or distributor.
Sanwa reserves the right to inspect all warranty claims
to determine the extent to which the warranty policy shallapply. This warranty shall not apply to fuses, disposables
batteries, or any product or parts, which have been subject
to one of the following causes:
1. A failure due to improper handling or use that deviatesfrom the instruction manual.
2. A failure due to inadequate repair or modification bypeople other than Sanwa service personnel.
3. A failure due to causes not attributable to this productsuch as fire, flood and other natural disaster.
4. Non-operation due to a discharged battery.
5. A failure or damage due to transportation, relocation
or dropping after the purchase.

swallow it in.

–8–

–9–

[5] MEASUREMENT PROCEDURE

The meter will beep when turning its function switch, and it is– 10 –

Main unit and test
leads damaged?

No damaged

Stop using it and have it
repaired.

Check continuity oftest leads.

5-2-1
Display shows
0.0~0.4?
Yes

Short the red and black
test pins.

DCV ( ) Measurement
Input Value 500 V DC

1) Applications
No

Measures batteries and d.c. circuits.
2) Measuring Ranges
5 ranges from 400 mV to 500 V.

No problem.
Start measurement.

– 13 –

8–1 General Specifications

1. Never apply an input signals exceeding the
maximum rating input value.
2. Be sure to disconnect the test pins from the circuit
when changing the function.
3. Always keep your fingers behind the finger guards
on the probe when making measurements.

DamagedSet the function switch
at Ω.

– 12 –[8] SPECIFICATIONS! WARNING

not malfunction.

– 11 –– 23 –

5-2 Voltage Measurement

Start

5–1 Start-up Inspection! WARNING

1. This section is very important for safety. Read andunderstand the following instruction fully andmaintain your instrument properly.
2. The instrument must be calibrated and inspected atleast once a year to maintain the safety and accuracy.

1) Appearance● The buzzer sounds when the resistance in a circuit to–6–◎ How to fix test leads[6] MAINTENANCE

6–1 Maintenance and Inspection(Test lead RED: Negative  Output / BLACK: Positive Output)

Please keep it away from little children lest they should! WARNING

Other range: Approx 0.45 V(Test lead RED: Negative  Output / BLACK: Positive Output) After measurement, release the red and black test pins

The button-battery is made of oxidized silver, etc.

1. Never use meter if the meter or test leads aredamaged or broken.
2. Make sure that the test leads are not cut or otherwise
damaged.

human body to result in measurement error.
● Open voltage between input terminals.

the section 5–1, page 12 ~ 13.

If no switch is operated for about 30 minutes after
power on, the power will automatically be turned
off and the display will become blank.
To reset the meter, remove the object to measurefrom the meter and set the function switch to OFF
set the function switch again according to themeasurement and connect the object to measure.

MEMO

lead black).
● If a test pin is touched by a finger during measurement,
measurement will be influenced by the resistance in the● Make sure that the test leads are not cut, referring to–5–

Cautions :• Keep the lid turned to the rear during measurement.
• The lid can not be closed when the test leads areout.
• If the test leads are projecting from the test leadstorage space, the lid may not close completely.
Do not force the lid, but re-set the test leads properly.

–7–● If measurement is likely to be influenced by noise, shield
the object to measure with negative potential ( test

400Ω range: Approx 1.2 V

6 ranges from 400 Ω to 40 MΩ.
3) Measurement Procedure

Decimal point

the safety standard IEC 61010-1 Measurement Category II.

• 4000 counts and circular bar graph available.

◎ How to open/close main unit lid (Protection cover) To open the lid, push the button on the left side of
the main unit in the direction shown.
 Open the lid.
 To close the lid, push in the projection provided
inside the lid in the catch on the main unit.

This is not malfunction.

Never apply voltage to the input terminals.

2–2 Features

or peak max 700 V[4] DESCRIPTION OF FUNCTIONS

from the circuit measured.
蘆 The display fluctuates when the test leads are removed.

5–3 Resistance Measurement! WARNING

2) Measuring Ranges! WARNING

Measurement
unit display

This instrument is pocket type digital multimeter
designed for measurement of weak current circuits. It
plays an important role in circuitry analysis by using
additional functions as well as measurements of small typecommunication equipment, electrical home appliance,lighting voltage and batteries of various types.

–3– After measurement, remove the red and black test pins

5–4 Checking Continuity
Battery discharge
warning

2–1 Application

3–1 Multimeter, Test leads

Checking continuity
display

Function[3] NAME OF COMPONENT UNITS

Minus polarity display
for bar graph

1–3 Maximum Overload Protection Input

potential side.
 Read the value on the display.

Maximum Rating

1) Applications– 15 –

Testing diode display

1. Correct measurement may not be performed whenusing the meter in the ferromagnetic / intenseelectric field such as places near a transformer, ahigh-current circuit, and a radio.
2. T h e m e t e r m a y m a l f u n c t i o n o r c o r r e c tmeasurement may not be performed whenmeasuring special waveform such as that of theinverter circuit.

[2] APPLICATION AND FEATURES

Minus polarity display
for numeral data

! CAUTION

the circuit to measure and the red test pin to the positive–2–

Numeral data display

12. Never open tester case except when replacing
batteries. Do not attempt any alteration of original
specifications.
13. To ensure safety and maintain accuracy, calibrate
and check the tester at least once a year.
14. Indoor use.

 Apply the black test pin to the negative potential side of

5-2-2 ACV () Measurement
Input Value 500V AC

DC measurement display! WARNING(DCV) range.

: DiodeAC measurement
display

INSTRUCTION MANUAL

Dempa Bldg., 4-4 Sotokanda 2-Chome
Chiyoda-ku, Tokyo, JapanΩ : Resistance+ : Plus input (Red)– : Minus input (Black)

Bar graph scale

DIGITAL MULTIMETER Set the function switch at

High speed
bar graph

PM11! : Very important instruction for safe use.
• The warning messages are intended to prevent
accidents to operating personnel such as burn andelectrical shock.
• The caution messages are intended to prevent
damage to the instrument.

3) Measurement Procedure! WARNING– 14 –

Maximum Rating

Measuring method
Display: Dual integration: Counter approx. 4000 counts max.
Bar graph max. 40 segments
Range selection : Auto range (V • Ω)Over display: “OL” mark indication
Polarity: Automatic selection (“–” is displayed only.)
Battery discharge : If the internal battery has been consumed andthe voltage drops, the display shows BT .
Sampling rate
: Approx. 1.3 times/sec (numeral display)
Approx. 13 times/ sec (bar graph)
Accuracy assurance temperature/humidity range: 23±5 °C 80% RH max.
No condensation
Operating temperature/humidity range: 0~40 °C 80% RH max. No condensation
Storage temperature / humidity range: –10~50 °C 70% RH max.
: No condensation
Environmental Condition : Operating altitude ＜2000m, Indoor use only
Pollution degree 2
Power supply: LR-44 2 pieces
Power consumption : Approx. 3.5 mW TYP (at DCV)
Auto power off: Power off about 30 minutes after no operation.
Dimension and Mass : 117(H ) x 76(W ) x 18(D ) mm. Approx 117 g
Accessories: Instruction manual
Safety: When removable test pin covers are attached:In compliance with 300 V requirement of
EN61010-1, EN61010-2-030, EN61010-2-033,
EN61010-031
Overvoltage Category III
When removable test pin covers are notattached: In compliance with 500 V requirementof Overvoltage Category II
Installation Category (Overvoltage Category)Ⅱ: Local Level Appliances Portable Equipment
Installation Category (Overvoltage Category)Ⅲ: Distribution Level Fixed Installation
EMC directive, RoHS directive : IEC61326(EMC). EN50581(RoHS).

– 27 –– 24 –

400.0 Ω

Accuracy assurance range: 23±5°C 80%RH max.
No condensation.

(DCV)

Range

Accuracy

Input Resistance

400.0 mV±(0.8% rdg+4 dgt)

≧ 100 MΩ

40.00 V±(1.3% rdg+4 dgt)

400.0 V
500 V

40.00 V
400.0 VΩ
40.00 kΩResistance
400.0 kΩ※±(2.3% rdg+8 dgt)

40.00 MΩ

500 V

Approx.
10 MΩ±(2.0% rdg+4 dgt)

4.000 MΩ ±(3.5% rdg+4 dgt)

Approx.
10 MΩ
Approx.
11 MΩ

4.000 V
(ACV)

Remarks

4.000 kΩApprox.
11 MΩ

4.000 VNote:

1) Prior to requesting repair,please check the following:
Capacity of the built-in battery, polarity of installationand discontinuity of the test leads.
2) Repair during the warranty period:
The failed meter will be repaired in accordance with theconditions stipulated in 7-1 Warranty and Provision.
3) Repair after the warranty period has expired:
In some cases, repair and transportation cost may become
higher than the price of the product. Please contact Sanwa
authorized agent / service provider in advance.
The minimum retention period of service functional parts
is 6 years after the discontinuation of manufacture. Thisretention period is the repair warranty period. Please note,however, if such functional parts become unavailable forreasons of discontinuation of manufacture, etc., theretention period may become shorter accordingly.
4) Precautions when sending the product to be repaired:
To ensure the safety of the product during transportation,
place the product in a box that is larger than the product5 times or more in volume and fill cushion materials
fully and then clearly mark ”Repair Product Enclosed”
on the box surface. The cost of sending and returning
the product shall be borne by the customer.

7-3 SANWA web site

http://www.sanwa-meter.co.jp
E-mail: exp_sales@sanwa-meter.co.jp– 25 –

8–2 Measurement Range and Accuracy

Function

Customers are asked to provide the following information
when requesting services:
1. Customer name, address, and contact information
2. Description of problem
3. Description of product configuration
4. Model Number
5. Product Serial Number
6. Proof of Date-of-Purchase
7. Where you purchased the productPlease contact Sanwa authorized agent / distributor / service
provider, listed in our wbsite, in your country with above
information.An instrument sent to Sanwa / agent / distributor
without those information will be returned to the customer.

Accuracy inthe case of sine
wave AC:
45 Hz ~ 1 kHz±(10% rdg+5 dgt)

– 26 –

Open voltage between input
terminals.
400 Ω range: Approx 1.2 V
Other range: Approx 0.45 V※ Test lead
RED: Negative  Output
BLACK: Positive  Output※The measuring current changes
according to the resistance ofthe resister to measure.

Chcking
Continuity• Buzzer sounds at approx. 35 Ω max.
• Open voltage : approx. 1.2 V※ Test lead RED: Negative  Output※ Test lead BLACK: Positive  Output

Testing
Diode• Open voltage between input terminals is about the sameas the voltage of battery.

rdg : reading◎ Accuracy calculation
True value:Measurement DCV

Displayed value :100.0 mV
Accuracy:400 mV Range ···· ±(0.8% rdg+4 dgt)

Error:±(100.0 [mV] x 0.8% + 4 [dgt] ) = ±1.2 [mV]For example:100.0 [mV] ± 1.2 [mV] (In a range of98.8~101.2 mV)※ 4 [dgt] in the 400 mV range corresponds to 0.4 mV

dgt : digits※ Accuracy in the case of sine wave AC.

Specifications and external appearance of the productdescribed above may be revised for modification without
prior notice.

– 28 –– 29 –– 30 –