Kusam-meco KM-CAL-907 User manual

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Introduction
The voltage/current/pressure calibrator (the calibrator in the following) is a handheld, battery-operated
instrument that measures and sources electrical and physical parameters.
Features:
Measure: DC-voltage, DC-current, frequency and continuity
Source: DC-voltage, DC-current, simulation transmitter, frequency and pulse
Pressure: measuring pressure, Calibrating pressure-voltage transmitter, Calibrating 2wire pressure
transmitter, Calibrating pressure switch;
Others features:
zManual step source and auto -step and sweeping –step source
zMeasurement/source mA% display
zMeasurement wave-filter function
zMeasurement manual-holding function
zPressure source auto-holding function
1 Contact Us
To purchase parts, obtain operation help or address of the vendor or service center nearest to you, please call
us or visit our web (see the bottom page of the Manual).

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2 Standard Accessories
Make sure that the package contains all the accessories listed below. And if you find they are damaged or any
of them is missing, please contact the vendor from which you purchased the product as soon as possible.
Refer to the replacing part list in 15.3 in the Manual if you want to order the replacing parts.
•A set of Industrial testing Lead (CL727220)
•A set of Testing Lead (Tp727110)
•A set of Alligator clip (CC807130)
•A quick reference guide
•A User's Manual
•One Fuse 50mA/250V
•One Fuse 63mA/250V

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3 Safety Information
For the correct and safe use of the instrument, be sure to follow the cautionary notes stated in this manual
whenever handling the instrument. The Company shall not be held liable for any damage resulting from use of
the instrument in a manner other than prescribed in the cautionary notes.
A Warning identifies conditions and actions that pose hazards to the user; a Caution identifies conditions
and actions that may damage the meter or the equipment under test.
Refer to Table 1 for the explanation of the international electric symbols adopted by the calibrator or the user’s
manual.
Table 1 Explanations of International Electrical Symbols
EARTH GROUND
WARNING
INFORMATION
Warning
To avoid possible electric shock or personal injury:
zDo not apply more than the rated voltage, as marked on the calibrator, between terminals or between any
terminal and earth ground;
zBefore use, verify the meter’s operation by measuring a known voltage;
zFollow all equipment safety procedures;
zDo not connect the probe of the testing lead with any live power when the other end has been inserted into
the current jack;

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zDo not use the meter if it is damaged. Before using the meter, inspect the case. Look for cracks or missing
plastic .Pay particular attention to the insulation surrounding the connectors;
zSelect the proper function and range for the measurement;
zMake sure the battery door is closed and latched before operating the meter;
zRemove test leads from the meter before opening the battery door;
zInspect the test leads for damaged insulation or exposed metal. Check test lead continuity. Replace
damaged test leads before using the meter;
zWhen using the probes, keep fingers behind the finger guards on the probes;
zConnect the common test lead before connecting the live test lead. When disconnecting test leads,
disconnect the live test lead first;
zDo not use the meter if it operates abnormally. Protection may be impaired. When in doubt, have the
meter inspect;
zDo not operate this instrument in areas where inflammable or explosive gases or vapor exists. It is
extremely hazardous to use the instrument under such environments;
zDo not operate the meter around explosive gas, vapor, or dust;
zWhen use the pressure module, do make sure the process pressure line is shut off and depressurized
before connecting or disconnecting the pressure module;

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zUse only type 4 AAA batteries, properly installed in the meter case, to power the meter;
zDo disconnect the testing lead before shifting to different source or measurement functions;
zWhen servicing the meter, use only specified replacement parts.
zTo avoid false reading, which could lead to possible electric shock or personal injury, replace the batteries
as soon as the low battery indicator ( ) appears.
z
Caution
To avoid possible damage to meter or to equipment under test:
zDisconnect the power and discharge all high-voltage capacitors before testing continuity.
zUse the proper jacks, functions, and ranges for the measurement or source operation.

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4 Familiar With the Calibrator
Figure 1 Entire Graph Figure 2 Measurement/ Source Terminals

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5.1 Measurement/ Source Terminals 5.2 Keys
Figure 2 shows the measurement /source terminals Figure 3 shows keys of the calibrator.
of the calibrator. Table 2 explains their use. Table 3 explains their use.
Table 2 Measurement/ Source Terminals
Figure3keys
Terminal Function
1. Measurement Signals (+) : DCmV,
2. Measurement Signals (+) : DCV, FREQ
3. Measurement Signals (+) : DCmA
4. All the common (return ) (-) terminals of
measurement function
5. Source Signals : (-) DCmA
Source Signals : (+) Simulate mA
6. Source Signals : (+) DCmA
LOOP Terminal : +24VDC Loop Power Terminal
7. All the common (return ) (-) terminals of
source function
8. Source Signals : (+) DCV, FREQ, PULSE

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Table 3 Functions of the keys
No. Name Function
1~5 Source value set key Increment of source set point
6~10 Source value set key Decrement of source set point
11 MODE key Mode conversion key
12 ON key Turn on or off measurement/ source function
13 Power key Turn on or off the power
14 Backlight Turn on or off the backlight
15 V Key Select measurement/source DCV function
16 PULSE Key Select source pulse function
17 mA Key Select measurement/source mA function
18 FREQ Key Select measurement/source FREQ function
19 Key Select measurement continuity function;
Select calibration pressure-switch function
20 RANGE Key Select measurement/source range;
mA and percentage shifting key.

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21 UNIT Key Select pressure unit
22 LOOP key Turn on or off the 24V Loop power
23 ZERO Key Set the source value to default value;
Set the pressure value to zero-point;
In pulse source function, set the pulse number.
24 START Key Source auto-pulse number;
Turn on mA auto-stepping or sweeping function;
Measured value holding;
Unlock the pressure switch state.
25
Key
In DCmA source function ,select the auto-wave type;
In frequency or pulse source, set the frequency value.
26 25/100% Key In mA source function, select 25% or 100% manual step
output type;
In pulse number, frequency source, set the amplitude value;
Measuring average value.
Display Screen
Figure 4 shows a typical display screen.
a : Measurement
b : Source
c : Measurement/Source frequency

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d : Calibration pressure-switch
e : Battery level indicator
f : Measurement/Source function on
g : Source /Pressure function off
h : Measurement/Source voltage
i : Measurement/Source current
j : Source pulse
k : 24V Loop Power Supply on
l : Measurement pressure
m : Beeper of measurement continuity
n : Pressure reading zero off
o : Measured value holding
p : Measuring average value
q : Unit of pressure
r : Main display date and message
s : Present Unit of main display date Ω
t : DCmA 25%or 100% manual step source
u : Start source number of pulses / DCmA auto-
stepping or sweeping source function
v : 24V Loop Power Supply on Figure 4 typical LCD display

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w : DCmA auto-stepping or sweeping source
x : Present unit of assistance district date
y : Assistance districts date and message
5 Before starting source/measurement
Operating Precautions
Precautions for Safe Use of the Instrument
zWhen using the instrument for the first time, be sure to read the instructions given in Section Four
“Precautions for Safe Use of the Instrument.”
zDo not open the instrument’s case.
Contact the vendor from which you purchased the instrument, for a service of inspecting or adjusting the
internal assembly.
zIn case of failure
Should the instrument begin to emit smoke, give off an unusual odor, or show any other anomaly,
immediately turn off the POWER key. If you are using an Charger, disconnect the plug from the wall outlet.
Also cut off power to the object under test that is connected to the input terminals. Then, contact the
vendor from which you purchased the instrument.
zCharger
Use an Charger dedicated to the instrument. Avoid placing any load on the Charger, or prevent any
heat-emitting object from coming into contact with the adapter.

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General Handling Precautions
zBefore carrying around the instrument turn off power to the object under test, and then the POWER key of
the instrument. If you are using an Charger, disconnect the power cord from the wall outlet. Finally, detach
all lead cables from the instrument. Use a dedicated carry case when transporting the instrument.
zDo not bring any electrified object close to the input terminals, since the internal circuit may be destroyed.
zDo not apply any volatile chemical to the instrument’s case or operation panel. Do not leave the
instrument in contact with any product made of rubber or vinyl for a prolonged period. Be careful not to let
a soldering iron or any other heat-emitting object come into contact with the operation panel, as the panel
is made of thermoplastic resin.
zBefore cleaning the instrument’s case or operation panel disconnect the power cord plug from the wall
outlet if you are using an Charger. Use a soft, clean cloth soaked in water and tightly squeezed to gently
wipe the outer surfaces of the instrument. Ingress of water into the instrument can result in malfunction.
zIf you are using an Charger with the instrument and will not use the instrument for a prolonged period,
disconnect the power cord plug from the wall outlet.
zFor handling precautions regarding the batteries, see “Installing or Replacing the Batteries”.
zNever use the instrument with the cover of the battery holder opened.

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Environmental Requirements
Use the instrument in locations that meet the following environmental requirements:
zAmbient temperature and humidity
Ambient temperature range: 0 to 50℃
Ambient humidity range: 20 to 80% RH. Use the instrument under non-condensing condition.
zFlat and level locations
Do not use the instrument in locations that are
zExposed to direct sunlight or close to any heat source.
zExposed to frequent mechanical vibration.
zClose to any noise source, such as high-voltage equipment or motive power sources.
zClose to any source of intensive electric or electromagnetic fields.
zExposed to large amounts of greasy fumes, hot steam, dust or corrosive gases.
zExposed to unstable or a risk of explosion due to the presence of flammable gases.
Note:
zUse the instrument under the following environmental conditions if precise source or measurement is your
requirement:
Ambient temperature range: 23±5°C;
Ambient humidity range: 20 to 80% RH(non-condensing)

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zWhen using the instrument within a temperature range of 0 to 18°C or 28 to 50°C, add a value based on
the temperature coefficient shown in Chapter 18“Specifications” to the given accuracy rating.
zWhen using the instrument at an ambient humidity of 30% or lower, prevent electrostatic charges from
being produced, by using an antistatic mat or any other alternative means.
zCondensation may occur if you relocate the instrument from places with low temperature and humidity to
places with high temperature and humidity, or if the instrument experiences any sudden temperature
change. In that case, leave the instrument under the given ambient temperature for at least one hour to
ensure that the instrument is free from condensation, before using the instrument.
Installing or Replacing the Batteries
Warning
To avoid electrical shock, always remove the source or measurement lead cables from the object under test,
as well as from the instrument itself before opening battery door.
Caution
zTo avoid the risk of fluid leakage or battery explosion, install batteries with their positive and negative
electrodes correctly positioned.
zDo not short-circuit the batteries.
zDo not disassemble or heat the batteries or throw them into fire.
zWhen replacing batteries, replace all of the four batteries at the same time with new ones from the same
manufacturer.
zIf the instrument will not be used for a prolonged period, remove the batteries from the instrument.

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Step 1: Remove the lead cables and charger and turn off the calibrator before you begin installing batteries.
Step 2: Remove the battery holder cover by sliding it in one-quarter counterclockwise direction and turn off the
calibrator.
Step 3: Install four alkaline batteries of same type in the battery holder with their positive and negative
electrodes positioned correctly as indicated on the holder.
Step 4: After replacement, reattach the battery holder cover.
Indication of Battery Level
The battery replacement indicator shows the battery level in five steps according to the measured voltage of
the batteries.
Full battery:
The battery level is below 50% full:
The battery level is below 25% full:
Low battery:
The dictation flashes in sequence when getting charged.

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Note that the battery replacement indicator is driven by directly measuring the battery voltage when the
calibrator is in actual operation. Consequently, the indicator may read differently depending on the battery load
condition (e.g., the load condition of the source output is on/ off state) if the batteries are too low.
Connecting the Charger
Warning
zMake sure the voltage of the AC power source matches the rated supply voltage of the Charger, before
connecting the Charger to the AC power source.
zDo not use any Charger other than the dedicated Charger from the Company.
zDo not charge non Ni-Cd, Ni-MH batteries or wasted batteries.
Step 1: Make sure the calibrator is turned off.
Step 2: Insert the plug of the optional Charger into the Charger connection jack.
Note:
zTurn off the calibrator before connecting or disconnecting the Charger from AC power, plugging in/out the
Charger connection jack.
zPlug out the Charger from the Charger connection jack of the calibrator when discharging.
zDo not charge the calibrator without any battery in.
Turning On the Power
Pressing the Power key once when the power is off turns on the calibrator.
Pressing the Power key for 2 seconds turns off the calibrator.

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Automatic Power-off
When the calibrator is running on batteries and no key is operated for approximately ten minutes, the calibrator
turns off automatically. The automatic power-off time could be reset in the factory default parts, see Chapter 10
“Factory Default”.
Turning On/Off the Backlight
The LCD can be backlit. Pressing the key turns on the backlight, while pressing the key once again turns it off.
This feature makes it easier for you to view the LCD when operating the calibrator in dark places or when
carrying out source or measurement. Battery life shortens when the calibrator is operated on batteries.
Note
The backlight automatically turns off after 10 seconds. Press the key once more to relight it.
The time could be reset in the factory default parts, see Chapter 10 “Factory Default”.

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7 Source
From the calibrator, you can source a DC voltage, DC current, frequency, pulse signal.
Warning
To avoid electrical shock, do not apply more than the rated voltage, as marked on the calibrator, between
terminals or between any terminal and earth ground. Always use the calibrator in locations with a voltage to
ground below 30 Vpk.
Caution
zDo not apply any voltage to the output terminals for ranges other than 4-20mA simulating transmitter
output Otherwise, the internal circuitry may be damaged.
7.1 Connecting Cables to Terminals
For DC voltage, frequency, pulse (Figure 5)
Step 1: Connect the black lead cable for source to the
COM output terminal and the red lead cable to the “VHz”
outputterminal.
Step 2: Connect the other ends of the cables to the input
of equipment under test while making sure the polarities
are correct. Figure 5 Sourcing DC voltage, frequency, pulse

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For DC current (Figure 6)
Step 1: Connect the black lead cable for source to the “mA-”
output terminal and the red lead cable to the ‘’mA+/LOOP’’
output terminal.
Step 2: Connect the other ends of the cables to the input of
equipment under test while making sure the polarities are correct.
7.2 Sourcing DC Voltage
Step 1: Using the 〔V〕key to select DC voltage source function,
select the desired range from 1000mV, 10V by pressing the〔RANG〕
key. The default value and unit of the selected source function and Figure 6 Sourcing DC Current
range shall be displayed on the LCD.
Step 2: Set the output value digit by digit using 〔S〕/〔T〕keys.
Each pair of 〔S〕/〔T〕keys corresponds to each digit of the LCD reading. Each press of the 〔S〕/〔T〕
key increases or decreases the digit. Increasing the digit from 9 or decreasing it from 0 causes the digit to
overflow or underflow, allowing you to set the output value without interruption. Holding down the 〔S〕/〔T〕