CAUTION
1. Correct measurement may not be performed when using the meter in aferromagnetic/intense electric field such as a place near a transformer,
high-current circuit or a radio.
2. The meter may malfunction or correct measurement may not be
performed when measuring a special waveform such as that from aninverter circuit.

1-3 Overload protections
Function

Input terminals

ACV Hz+ (Red)and- (Black)

DCV

CD800F
DIGITAL MULTIMETER
INSTRUCTION MANUAL

/

/

/

Max. rated input value

AC/DC 1100 V

DC 1000 V
Voltage input prohibited＋ or －EF

Max. overload protection input

AC 1000 V

AC/DC 1000 V

AC/DC 1000 V

02-1704 2040 6006

4-4 Measurement function selection : SELECT button• Safety design compliant to IEC61010.
• AC measurements with True RMS conversion.
• High portability thanks to the case-integrated design.
• Backlight.
• EF (Electric Field sensing).
Measurement categories (Overvoltage categories)
CAT. II : Primary circuit of equipment with a power cord to be connected to amains socket.
CAT.III : Primary circuit of equipment that inputs power directly from the
distributor and the circuit from the distributor to the mains socket.
CAT.IV : Circuit from the leading wire to the distributor.

[3] NAMES OF COMPONENT UNITS

The meaning of the symbols used in this manual and attached to the product is
as follows.
: Very important instructions for safe use.
• The WARNING messages are intended to prevent accidents to operating
personnel such as burn and electrical shock.
• The CAUTION messages are intended to prevent damage to the instrument.
Symbols attached to the product: Symbol soliciting reference to this manual before use: Double or enhanced insulation: Ground: Resistance: Diode: Buzzer: Capacitance: Backlight

3-1 Multimeter and test leads
Test pins

EF antenna position

Removable test pin covers
View when not attached

HOLD button△ REL button

Finger guards
Display

Removable test pin covers
When covered: CAT.IV 1000 V
When uncovered: CAT.II 1000 V

SELECT button
RANGE button

Test probe (red)Test probe (black)

Power/function switch

3-2 Display

Coverage

Note

0.000 - 3.000 V

Open voltage across input terminals: About 3.2 V“OL” is displayed at 3.000 V or more.

Forward test

CathodeUnit: Voltage alarm: Data Hold indicator: Auto Range indicator: Low battery indication: Auto Power Save indicator: Relative operation indicator: Continuity check: Diode: Capacitor: Alternative Current: Direct Current: MAX/MIN mode indicator

3-3 Attaching the strap
Hand strap

Example of Good item:
Forward voltage
drop display
Example of NG item:
0.000 V display,“OL” display

Example of Good item:“OL” display
Example of NG item:
Other display)

CoverageNote

0.0 - 600.0 ΩOpen voltage across input terminals: About 1.0 V

The buzzer beeps at 10 to 50 Ω or less.

[6] MAINTENANCE
1. This section is very important for safety. Read and understand thefollowing instruction fully and maintain your instrument properly.
2. The instrument must be calibrated and inspected at least once a year tomaintain the safety and accuracy.

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 the core wire not exposed at
any place of the test leads?
If any of the above is found with the appearance, do not use the equipment
and have it repaired.

6-2 Calibration
The manufacturer may conduct the calibration and inspection. For more
information, please contact the dealers.

6-3 Cleaning and storage
CAUTION)

Coverage

Range

0.00 - 600.0 μF

60.00 n/600.0 n/6.000 μ/60.00 μ/600.0 μ

Discharge the capacitor before
measurement.
It takes a while to measure large
capacitance.
This measurement is not suitable formeasurement of a capacitor with ahigh leak current such as anelectrolytic capacitor.

1. The main unit is not resistant to volatile solvent and must not be cleaned
with lacquer thinner or alcohol. If it gets dirty, wipe lightly with a soft clothmoistened with a small amount of water.
2. The main unit is not resistant to heat. Do not place it near a source of high heat.
3. Do not store the instrument in a place where it may be subjected toexcessive vibrations or from where it may fall.
4. For storing the instrument, avoid hot, cold or humid places or placed
under direct sunlight or where condensation is anticipated.
5. When the instrument is not to be used for a long period, be sure to
remove batteries from it.

6-4 Battery replacement
WARNING
1. If the rear case or the battery lid is removed with input applied to the input
terminals, you may get electrical shock. Before starting the work, always
make sure that no input is applied.
2. Before starting the work, be sure to turn OFF the main unit power andrelease the test leads from the circuit.

5-5 EF (Electric Field) sensing
WARNING

1 This function identifies the presence of voltage in a simplified manner bysensing the electric field generated by AC voltage.
Sensing voltage reference: A voltage or electric field of about 60 V or more
can be sensed.
2 When the function switch is set to EF, “EF” is displayed.
3 Antenna• Noncontact type : An antenna is provided near the ▲ marking on the top
left of the main unit.
• Contact type: Bring the test pin of a test lead (either red or black) in contact
with the target.
More accurate sensing is possible by distinguishing the non-grounded andgrounded sides. “-” is displayed and the buzzer beep is generated on the
non-grounded (hot) side, while “EF” remains displayed and the buzzer beep
is not generated on the grounded side.
* “EF” may sometimes become “-” even on the grounded side. This happens
when the wiring is long, etc.

5-2 AC voltage measurement (ACV), frequency measurement (Hz)Display

Coverage

RangesACV
Hz

0.005 - 1000
10.00 - 99.99 k

6.000/60.00/600.0/1000 V
99.99/999.9/9.999 k/99.99 kHz

The accuracy-assured frequencies of the ACV measurement are 45 Hz to 500
Hz (sine wave AC).
Hz input sensitivity : 10.00 to 9.999 kHz: ≥1 Vrms. 10.00 kHz or more: ≥5 Vrms.

Set the function switch to ACV.
Each press of the SELECT buttonalternates ACV and Hz.
While selecting ACV, appears on thedisplay when a voltage of 20 V or moreis input.
At the moment the input exceeds 20 V,
the buzzer beeps and the backlight
flashes to indicate it.

When the △ REL button is held depressed, the meter enters the MAX/MIN
mode, in which the measurement range is fixed and the Auto Power Save andRelative value measurement functions are canceled.
• Every time the SELECT button is pressed, the displayed information changes
as follows : Current measurement display (MAX MIN displayed) → MAXvalue display (MAX displayed) → MIN value display (MIN displayed) →Current measurement display (MAX MIN displayed) → …
• Current measurement display : The meter stores the maximum and minimum
values while displaying the current measurement value. The buzzer beeps
every time a value is updated. The maximum and minimum values can bechecked by pressing the button to view the MAX value display and MIN value
display. To cancel the MAX/MIN mode, press the button for 1 sec. or more.
• MAX value display : Maximum value measured since the entry in MAX/MIN
mode.
• MIN value display : Minimum value measured since the entry in MAX/MIN
mode.
The MAX/MIN mode can also be entered when the relative value measurement
function is active ( △ displayed). In this case, the MAX/MIN mode displays therelative values assuming that the value at the moment the button is pressed is 0(reference value).
MAX/MIN memory mode is not available in the Hz, , , and EF functions.
* The MAX/MIN mode is canceled when the function or range is switched.
When the HOLD button is pressed, the current display is hold (appears
on the display).The display will not be changed even when the input varies
on thethereafter. Press the button again to cancel the Data Hold mode (display disappears). This function is not available in the EF function.
* The Data Hold mode is also canceled when the function switch is switched or
the RANGE or SELECT button is pressed.

5-3 DC voltage measurement (DCV)
Display

Coverage

RangesDCV

0.0 m - 1000

600.0 m/6.000/60.00/600.0/1000 V

Set the function switch to DCV.
appears on the display when avoltage of 20 V or more is input.
At the moment the input exceeds 20 V,
the buzzer beeps and the backlight
flashes to indicate it.

5-4 Resistance ( ), diode (), continuity () , capacitance ()

WARNING• Never apply voltage to the input terminals.
Set the function switch to
Each press of the SELECT button switches the function in order of→→ …

5-4-1 Resistance measurement (Display→→)

Coverage

Ranges

0.0 - 60.00 MΩ

600.0/6.000 k/60.00 k/600.0 k/6.000 M/60.00 MΩ

The open voltage across the measurement terminals is about DC 1.2 V.

4-10 Disable Buzzer

If measurement is likely to be influenced
by noise, shield the object to measurewith negative potential (COM). If a finger
touches a test pin during measurement,
measurement will be influenced by theresistance in the human body, and that
results in measurement error.

Resistor

When the meter is switched on while holding the △ REL button displayed, thefor 2 seconds and the buzzer beep is canceled. Even whendisplay shows
the buzzer is canceled, it still beeps in the case of OL alarm, in the continuity
check, when the meter is turned on and before Auto Power Save. To enable allof the buzzer sounds, turn the meter off then on again.
* This mode cannot be used when the Auto Power Save function is canceled.

7-2 Repair− 4 −8-2 Optional accessory

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 website, in your country with above information. An instrument sent to
Sanwa / agent / distributor without those information will be returned to thecustomer.
Note:1) Prior to requesting repair, please check the following:• Capacity of the built-in batteries and polarity of installation.
• Discontinuity of the test leads.
2) Repair during the warranty period:
The failed meter will be repaired in accordance with the conditions stipulated
in 7-1, Warranty and provision.
3) Repair after the warranty period has expired:• When the original functionality is expected to be restored by repair, we will
repair the product upon request and payment by the customer.
• In some cases, repair and transportation cost may become higher than theprice of the product. Please contact Sanwa authorized agent/service provider
in advance.
• The minimum retention period of service functional parts is six (6) years after
the discontinuation of manufacture. This retention period is the repair
warranty period. Please note, however, if such functional parts become
unavailable for reasons of discontinuation of manufacture, etc., the retention
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 ina box that is larger than the product 5 times or more in volume and fillcushion materials fully.
• Clearly mark “Repair Product Enclosed” on the box surface.
• The cost of sending and returning the product shall be borne by the customer.

Hanger magnet: HM-1

8-3 Measurement ranges and accuracies
Accuracy-assured temperature/humidity ranges: 23±5 ºC, ≤ 80 %RH, nocondensation.
rdg: reading.
dgt: digits (lowest digits)
As the ACV measurements employ the rms value response, the accuracyassured ranges and crest factor become as follows.
Accuracy range: 1 % to 100 % of measurement range.
Crest factor CF: Full scale CF < 1.8, half scale CF < 3.6.
Function

AC voltage
ACV

1 Using a Phillips screwdriver, turnthe battery lid retaining screw(x1) until it becomes loose.
2 Press the position marked
PUSH to lift the battery lid, andthen remove it.
3 Replace the batteries by taking
care of the polarity.
4 Attach the battery lid andtighten the retaining screw.

[7] AFTER-SALE SERVICE
7-1 Warranty and provision
Sanwa offers comprehensive warranty services to its end-users and to its
product resellers. Under Sanwa's general warranty policy, each instrument iswarranted to be free from defects in workmanship or material under normal use
for the period 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 shall apply. This warranty shall not apply todisposables 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 deviates from the instruction
manual.
2. A failure due to inadequate repair or modification by people other than Sanwa
service personnel.
3. A failure due to causes not attributable to this product such as fire, flood andother natural disaster.
4. Non-operation due to a discharged battery.
5. A failure or damage due to transportation, relocation or dropping after thepurchase.

− 6 −Remarks

Input resistance: About 10 MΩ
• Accuracy-assured
frequencies: 45 Hz – 500 Hz

60.00 V
600.0 V

FrequencyHz

DC voltage
DCV△ - Σ method

AC detection method

True RMS method (AC coupling)

Display

Max. 6000 counts

Sampling rate

Max. approx. 5 times/sec.

Overload indication“ OL” mark indication on digital display

Range selection

Auto and Manual

Polarity switching

Auto (“-” indicated when negative voltage is input)

99.99 kHz
600.0 mV

Input resistance: About 10 MΩ

9.999 kHz

6.000 V
60.00 V

mark displayed when battery voltage drops at 2.3 V or less.
Altitude ≤2000 m, indoor use, pollution degree II

Operating temperature/humidity ranges-10 ºC to 40 ºC.
Humidity range is as follows (without condensation):Max. 80 %RH at 5 ºC to 31 ºC, decreasing linearly to 50 %RH at
40 ºC.

Storage temperature/humidity range-20 ºC to 40 ºC: ≤80 %RH (without condensation).
40 ºC to 50 ºC: ≤70 %RH (without condensation).
(Batteries should be removed when the instrument is not to be
used for a long period.)

Temperature coefficient

Below 18 ºC and above 28 ºC: Accuracy x 0.15 should be addedfunction.)
per ºC. (Accuracy x 0.25 should be added in thePower supply

LR03 (“AAA”-size alkaline battery)1.5 V × 2

Auto Power Save

Power Save in about 15 minutes after last operation. Typ. 20 µA

Current drain

About 1.5 mA (backlight off). max. about 38 mA

Battery life

About 600 hours (backlight off)

Dimensions & mass

166 (H) x 100 (W) x 43 (D) mm, about 360 grams (incl. batteries)

Test lead length

About 0.8 m

Safety standards

IEC61010-1, IEC61010-2-030, IEC61010-2-33, IEC61010-31
CAT.IV 1000 V

EMC Directive, RoHS
Directive

IEC61326 (EMC), EN50581 (RoHS)

Accessories

Instruction manual, “AAA”-size alkaline battery x 2, hand strap− 7 −± (0.5 %rdg+3 dgt)

± (0.8 %rdg+3 dgt )600.0 V
1000 V
6.000 kΩResistance

60.00 kΩ± (1.1 %rdg+5 dgt)

± (1.2 %rdg+5 dgt)

600.0 kΩ
6.000 MΩ± (2.0 %rdg+5 dgt)

60.00 MΩ± (4.0 %rdg+5 dgt)

• Open voltage: About DC 1.8 V• Measurement current varies
depending on the resistancevalue of the object measured.

Diode test

Open voltage: About DC 3.2 V“OL” displayed at 3.000 V or more.

Continuity check

Open voltage: About DC 1.0 V
Buzzer beep generated at 10 to50 Ω or less.

600.0 nF

± (3.0 %rdg+10 dgt)

6.000 μF
60.00 μF

Operating environmental
conditions± (1.5 %rdg+7 dgt)

600.0 ΩCapacitanceOperation method± (1.2 %rdg+5 dgt)

Input resistance: About 10 MΩ
• Accuracy not assured below
10 Hz.
• Sensitivity 10 Hz: ≥ 1 Vrms
10 kHz: ≥5 Vrms

999.9 Hz60.00 nF

8-1 General specifications

Low battery indication

Accuracy± (1.2 %rdg+9 dgt)

1000 V

7-3 SANWA web site
http://www.sanwa-meter.co.jp
E-mail: exp_sales@sanwa-meter.co.jp

Range
6.000 V

99.99 Hz

[8] SPECIFICATIONS

Batteries

1. Before EF sensing, check the operation of this instrument using a known
power source.
2. Always keep your fingers behind the finger guards on the probe when
making EF sensing.
3. Note that the voltage is not always absent and that a voltage below thesensing voltage may exist.

Check the following items before starting the daily measurement work.
• Appearance check : Check the appearance of the meter to see if it is freefrom damage caused by falling, etc.
• Accessory : Check that the test leads are free from irregularities such as
wire disconnection and crack.
• Battery: Install the battery before using the meter for the first time. Ensure
low battery indication is not displayed and, if it is displayed,that thereplace the battery with new one. If nothing is displayed, the battery may be
exhausted totally (see 6-4).
• Test lead wire disconnection can be checked by setting the function switch
to and shorting the test pins.
• Also check that the meter and your hands are not moistened by water, etc.

− 3 −Note: Because of the highsensitivity, the EF sensing
may be activated at a
distance of some tens ofcentimeter apart from asource of high frequencies
such as an inverter circuit.

Reverse test

Anode

5-1 Start-up inspection

Insert the Hand strap into the strap hole asshown in the figure.

WARNING− 5 −Press the RANGE button momentary to set the manual range mode (AUTO
disappears in the display). In manual range mode, press the button again to step
through the ranges. To return to the auto mode, press and hold the button for 1
sec. or more (then ‘AUTO’ is shown).
Manual range hold mode is not available in the Hz, , , and EF functions.

− 2 −

Diode

display

4-6 Range Hold : RANGE button

4-9 Data Hold : HOLD button)

5-4-4 Capacitance measurement (When the SELECT button is held depressed (for more than 2 sec.), the backlightof the LCD turns on. Holding the same button depressed again turns it off. The
backlight also turns of automatically in about 30 seconds.

4-8 MAX/MIN memory : △ REL (MAX/MIN) button

Strap hole

− 1 −Display

4-5 Backlight : SELECT ( ) button

WARNING
1. Never apply an input signal exceeding the maximum rating input value ofeach function.
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.
4. After measurement, release the red and black test pins from the object
measured and set the function switch to the OFF position.

When the △ REL button is pressed, △ appears on the display, the measuring
range is fixed and the display shows the relative values assuming that the value
at the moment the button is pressed is 0 (reference value). When the button ispressed again, △ disappears and the relative value measurement is canceled.
Relative value measurement mode is not available in the Hz,, and EF
functions.

1-1 Explanation of Warning Symbols

5-4-3 Continuity check (When the SELECT button is pressed, the functions change as follows.
ACV position : ACV → Hz → ACV → …
position : →
→
→
→ →…

[5] MEASUREMENT PROCEDURE

4-7 Relative value measurement : △ REL button

together with the product for reference to it when necessary.
If you use the product in a method not specified in this manual, the protection
function of the product may be imperiled.
The instruction given under the heading of “
WARNING” and “
CAUTION” mustbe followed to prevent accidental burn or electrical shock.

Display

The Auto Power Save function turns the display off automatically in about 15
minutes after the last operation or after an input of 20 V or higher was applied tosave the power consumption. To return from this status, press the SELECT or
RANGE button or turn the power switch to OFF then to another position.
To disable the Auto Power Save function, switch the meter on by turning thefunction switch while holding the SELECT button depressed. A short buzzer
beep is generated, “” is displayed for 2 seconds, and the indicator
disappears.
* A small current flows inside the meter even in the Auto Power Save status.
After measurement, always turn the function switch to the OFF position.

This instrument is a digital multimeter with rms value response, designed formeasurements within the range specified as CAT.IV 1000 V in IEC61010.

This instruction manual explains how to use your new digital multimeter CD800F
safely. Before use, please read this manual thoroughly. After reading it, keep it

5-4-2 Diode test (4-2 Auto Power Save

2-1 Applications

Before use, read the following safety precautions.

WARNING
The following instructions are intended to prevent personal injury such as
burn and electric shock. Be sure to follow them when using the tester.
1. This instrument is a digital multimeter for metering low voltages. Neveruse it on electric circuits that exceed CAT.IV 1000 V.
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 signal exceeding the maximum rating input value (see 1-3).
4. Never use the meter for measuring the line connected with equipment (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 are damaged or broken.
6. Never use uncased meter or the meter without the lid.
7. Always keep your fingers behind the finger guards on the probe when
making measurements.
8. Be sure to disconnect the test pins from the circuit when changing the function.
9. Before starting measurement, make sure that the function and range areproperly set in accordance with the measurement.
10.Never use meter with wet hands or in a damp environment.
11.Never open tester case except when replacing batteries.
Do not attempt any alteration of original specifications.
12.To ensure safety and maintain accuracy, check the meter in the start-up
inspection as well as in the inspection/calibration to be performed at least
once a year.
13.The meter is for indoor use only.
14.Wear insulating protective gear when using the meter with equipment
containing a hazardous live part. Also be sure to observe your local andnational safety rules.
15. Always use the meter in a specified method to prevent the protectivefunction from being imperiled.

Turn this switch to turn on and off the power and to switch the measuringfunctions.

When the batteries are exhausted until the supply voltage drops below about
2.3 V, theindicator lights on the display. Replace the batteries when thisindicator appears.

[1] SAFETY PRECAUTIONS

1-2 Warning Instructions for Safe Use

4-1 Power/Function switch

4-3 Low battery indication[2] APPLICATIONS AND FEATURES

2-2 Features

Dempa Bldg., 4-4 Sotokanda 2-Chome
Chiyoda-ku, Tokyo 101-0021, Japan[4] DESCRIPTION OF FUNCTIONS± (5.0 %rdg+10 dgt)

600.0 μF
Electric fieldsensing
EF

Auto range only.
Accuracy with a capacitor withlow leak current such as a film
capacitor or equivalent.
Less than 10 nF add +15 dgt tothe accuracy.

At the standard sensing voltage of
Sensing frequencies: 50/60 Hz.
about 60 V or more, the bar graph and Sensing antenna: Near ▲ on top
intermittent sound vary in 5 steps.
left of main unit.
Contact type EF sensing : Test pin

Accuracy calculation method

Example) AC voltage measurement (ACV)
Displayed value: 100.0 V
Range accuracy: 600.0 V range ±(1.2 %rdg + 5 dgt)
Error: ±(100.0 V x 1.2 %rdg + 5 dgt) = ±1.7 V
True value: 100.0 V ±1.7 V (between 98.3 - 101.7 V )* In the 600.0 V range, 5 dgt corresponds to 0.5 V.
Specifications and external appearance of the product describedabove may be revised for modification without prior notice.

− 8 −