CEM DT-9995 Instruction Manual

-1 0

AUTOMOTIVE MULTIMETER

WITH PC INTERFACE

INSTRUCTION MANUAL

Contents

Introduction……………………………………………………………………….1 Safety………………………………………………………… …………………… 2 Getting Started…………………………………………………………………6

Meter Basics…………………………………………………………………………7 Digital and Analog display…………………………………………………………8 Function and Range Select…………………………………………………………9

Push-button Functions……………………………………………………10

Mode Button… ……… …… …… …… …… …… …… …… …… …… 10 Range Select Button…………………………………………………………10 Range Exit ……………………………………………………………………10 + TRIG Button………………………………………………………………10 Data Hold /Backlight Button………………………………………………12 MAX/MIN/RS232 Button……………………………………………………12 Relative Button………………………………………………………………12

Meter Functions

Voltage (V)……………………………………………………………………14 Resistance (Ω ) ………………………………………………………………15 Diode Check( )……………………………………………………………16 Audible Continuity ( )……………………………………………………17 AC or DC Current (A) ………………………………………………………18 Temperature (℃/ 0F) ………………………………………………………19 Frequency (Hz) ……………………………………… …………………… 20 Dwell ( )……… …………………………………………………………21 Duty Cycle (%)………………………………………………………………22 Ms – PULSE& ms- PERIOD (ms) …………………………………………23 RPM ( ) ……………………………………………………………………25

Maintenance………………………………………………………………………26 Replacing The Battery……………………………………………………………26 Battery Installation…………………………………………………………………26 Replacing The Fuses………………………………………………………………27 Trouble Shooting………… ………………………………………………………28

General Specifications…………………………………………………………29 Electrical Specifications…………………………………………………………30 Ready – to – Use Windows® Application Program………………………35

his chapter covers brief, introductory information, You will find:

1 2

 Safety precautions

Safety

DANGER

 Engines produce carbon monoxide which

is odorless, causes slower reaction time, and can lead to serious injury. When the engine is operating, keep service areas WELL VENTILATED or attach the vehicle exhaust system to the shop exhaust removal system.

 Set the parking brake and block the

wheels before testing or repairing the vehicle. It is especially important to block the wheels on front-wheel drive vehicles; the parking brake does not hold the drive wheels.

 Wear an eye shield when testing or

repairing vehicles.

Exceeding the limits of this meter is dangerous.This will expose you to serious or possibly fatal injury. Carefully read and understand the cautions and the specification limits of this meter.

 Voltage between any terminal and ground

must not exceed 1000V DC or 750V AC.

 Use caution when measuring voltage above 25V DC or 25V AC.  Circuit tested must be protected by a 20A fuse or circuit breaker.  Do not use the meter if it has been damaged.  Do not use the test leads if the insulation is damaged or if metal

is exposed.

CAP

Hz

20A

MAX every

For

MAX

FUSED

15 min.

FUSED

20A MAX

30 sec.

400mA

500V

1000VDC 750VAC

MAX

-PERIOD

AmA

μ

DWELL

RPM ms

¦¸

RPM

COM

DWELL

ms-PULSE

%duty

V

x10RPM

OFF

24

¡ã

C

CAP

¡ã

¦¸

Hz

20A

A

F

μ

mA

ms TEMP.

%

CEM

TRIG¡À

3 4

Safety Cont’d

…

Danger

 Avoid electrical shock: do not touch the test

leads, tips or the circuit being tested.

 Do not try a voltage measurement with the

test leads in the 20A or the mA terminal.

 When testing for the presence of voltage or current, make sure

the meter is functioning correctly. Take a reading of a known voltage or current before accepting a zero reading.

 Choose the proper range and function for the measurement. Do

not try voltage or current measurements that may exceed the ratings marked on the Function/Range switch or terminal.

 When measuring current, connect the meter in series with the

load.

 Never connect more than one set of test leads to the meter.  Disconnect the live test lead before disconnecting the common

test lead.

 The mA and the 20A terminals are protected by fuses. To avoid

possible injury or damage, use only in circuits limited to 400mA or 20A for 30 seconds.

See also…

 Fuse Replacement

Safety Cont’d

…

IMPORTANT

 To maintain accuracy of the meter,replace the discharged battery

immediately when the battery symbol appears on the meter display.

 Avoid measuring error from outside interference.Keep the meter

away from spark plug or coil wires.

 Avoid damaging the meter when testing voltage.Disconnect the

test leads from the test points before changing functions.

 Do not exceed the limits shown in the table below:

Function

Terminal

Input limit

AC Volts

V-Ω -RPM

750Volts AC rms

DC Volts

1000Volts DC

Frequency

V-Ω -RPM

250VoltsAC/DC

Ohm(resistance)

V-Ω -RPM

250VoltsAC DC

Diode

AC/DC μ A mA

μ A / mA

400mAAC/DC

AC/DC20A

20A

*20AAC/DC

RPM

V-Ω -RPM

250Volts AC/DC

Duty Cycle(%)

Dwell angle

* 20 Amp measurement for 30 seconds maximum. ① Ohms can not be measured if voltage is present, ohms can be measured only in a non-powered circuit. However, the meter is protected to 250 volts.

5 6

Notes:

Getting Started

his chapter will help you get started. It describes the basic functions of the Meter.

7 8

Meter Basics

1. Digital and Analog display

Display features:

a. Four character digital display b. Symbols to identify function c. Analog bar graph

The digital display is best for stable input. The bar graph is best for rapidly changing input.

2. Function buttons

Press the button to select a function. A symbol will display to verify your choice.

3. Rotary Selector Switch

Turn this switch to select a function or turn the meter OFF.

4. Volts Terminal

The Red test lead is used to measure Amps, Volts, Ohms, TEMP, Hz, RPM, Cap, mS and Dwell. The Black test lead is used in the Common(COM) terminal for all tests

Meter Basics Cont’d…

Digital and Analog display

AC DC Press the Mode button to select Alternating Current

(AC) or Direct Current (DC)

HOLD Press Hold to hold data display or resume testing.

RPM (Tach)

Negative Polarity Indicator Continuity Test When Dwell (# of cylinders) is selected with the rotary switch. Low Battery Replace the master battery when this symbol displays. Analog bar Graph display with polarity.

Units of measure:

Kilo (k=1,000) Hertz (Hz) Milli (M=1/1000,) Volts (V) mega(m=1,000,000) ohms (Ω) dwell degrees duty percent (%)

9 10

Meter Basics Cont’d…

Function and Range Select

Turn the rotary switch in either direction to select a function.

Most functions also have ranges. Always select a range higher than you expect the current or voltage to be. Then select a lower range if better accuracy is needed.

 If the range is too high, the

readings are less accurate.

 If the range is too low, the

meter shows (over limit).

Push–button Functions

Mode Button

Press the Mode button to toggle between DC and AC in the voltage & current measurements.

Range / # CYL Select

The range is automatically selected by the meter. You can also manually select a range or DWELL (#CYL) range within a function by pressing the

RANGE button. Range Exit

To exit the RANGE mode and return to autoranging, press and hold the RANGE button for 2 seconds.

Note:

· If the range is too high, the readings are less accurate.

· If the range is too low, the

meter shows OL (over limit).

+ TRIG

Toggles between a Negative (-) and Positive (+) Trigger Slope when the Meter is in the ms-pulse, %duty cycle mode, press this button down for 2 seconds to toggle between a negative(-) and positive (+) trigger slope.

11 12

The change in the trigger slope is indicated by a + or – shown at the lower left corner of the display.

The Meter defaults to a – trigger slope whenever the Meter is in the Hz, %duty, ms-pulse, ms-period, dwell & RPM.

Once the trigger slope is selected, press this button repeatedly to adjust trigger level if the meter reading is too high or unstable

The Trigger Level has five steps and is different for each function combination.

Press this TRIG button to move one step at a time in order to select a suitable trigger level.

The trigger level is indicated by the number above the “trig” symbol at the lower left corner of the LCD.

The number of steps on the LCD is also a good indication of the trigger level.

Function Step Trigger Level

RPM, ms-Pulse,ms-Period,Dwell, %Duty,Hz

4

+7.2v 3 +4.1V 2 +2.1 V

1

+0.8 V

Data Hold/ Backlight

The Data Hold Feature stores the last reading in memory.  Press the Data Hold button

once to hold the present reading.

 Press the Data Hold button

again to exit and resume normal readings.

 Press the Data Hold button for one

second to turn the backlight on and press the button a second time to turn the backlight off.

MAX/ MIN /RS232

Press MAX/MIN to enter, MAX MIN recording mode. MAX/MIN function is operative in manual range only! Select the proper range before activating MAX MIN to ensure that the MZX/MIN reading will not exceed the testing range. Press once to select MAX Press again to select MIN and press again release MAX/MIN recording function. Press this button down for 2 seconds to select RS232 PC interface mode.

Relative Mode

The relative measurement feature allows you to make measurements relative to a stored reference value. A reference voltage, current, etc. can be stored and measurements made in comparison to that value.

13 14

The displayed value is the difference between the reference value and the measured value.

1. Perform the measurement as described in the operating instructions.

2. Press the REL button to store the reading in the display and the "REL" indicator will appear on the display.

3.The display will now indicate the difference between the stored

value and the measured value.

4.Press the REL button to exit the relative mode.

Meter Functions - Voltage (V)

The meter will automatically

select he best voltage (V) range.

Select DCV or ACV with the

MODE button.

Insert:

 Black lead in COM terminal.  Red lead in V-Ω -PRM terminal

Touch the Black probe to ground or to the negative (-) circuit

Touch the Red probe to the circuit coming from the power source

IMPORTANT: Voltage must be measuring in parallel (Red probe measuring circuit from power source).

Accuracy

Selection of a lower range will

move the decimal point one place and increase the accuracy. An “OL” display means the range is too low. Select the next higher range.

Analog Bar Graph

The Bar Graph is easiest to read when the data causes the digital display to rapidly change. It is also useful for trend setting or directional data.

WARNING

When measuring voltage, be sure the Red test lead is

in the terminal marked “V”.

If the test lead is in an Amp (A) or Milliampere (mA) terminal, you may be injured or the meter damaged.

15 16

Meter Functions – Resistance (Ω)

IMPORTANT: If you are testing

an application that has capacitors in the circuit, be sure to turn the power OFF on the test circuit and discharge all capacitors. Accurate measurement is not possible if external or residual voltage is present.

Select the resistance ( Ω ) range with the rotary switch.

Select the resistance( Ω ) range with the button labeled “R ANGE” , if m or e a ccu ra te measurement is desired.

Insert:

 Black lead in COM terminal.

 Red lead in V- Ω -RPM

terminal.

Touch the test lead probes across the resistor to be tested.

Meter Functions –Diode Check ( )

IMPORTANT: Turn the power OFF to the test circuit

Select the Diode Check ( ) function with the rotary switch.

Insert:

Black lead in COM terminal. Red lead in V-Ω-RPM terminal.

Touch the Black test probe to the negative (-) side of the diode.

Touch the Red test probe to the positive (+) side of the diode. Reverse the probes: Black to the positive (+) side and Red to the negative (-) side.

Note:

A “good” diode will read low in one `direction and high in the other direction when the probes are reversed (or vice versa). A defective diode will have the same reading in both directions or read between 1.0 to 3.0 V. in both directions

Diode

- to +

Reverse

Probes

+ to -

Good

.4 to .9V

OL

.4 to .9V

Bad

OL

1.0 to 3.0V

OL

.4 to .9V

OL

.000V

17 18

Meter Functions –Audible Continuity ( )

IMPORTANT: Turn the power OFF on the test circuit

Select the Audible Continuity ( ) function with the rotary switch and mode button

Insert:

 Black lead in COM terminal.  Red lead in V- Ω -RPM

terminal.

Connect one test probe to each end of the circuit to be tested.

 Circuit complete, the meter will

beep continuously.

 Circuit open, there is no beep

and the display shows to OL (over limit).

Meter Functions –AC or DC Current (A)

IMPORTANT: All current measured flows through the meter.

It is important that you do not:  Measure current greater than

600 Volts AC or DC, with respect to ground.

 Do Not Exceed 30 seconds

when measuring continuous current between 1A-20A. Allow five minutes for cool down before continuing.

Select the 20A., mA or μA range with the rotary switch.

Press the Mode button to select AC or DC.

Insert:

 Black lead in COM terminal.  Red lead in the 20A or mA

terminal (select 20A if you are unsure of the current draw).

IMPORTANT: Turn OFF all power to the circuit or disconnect the circuit from the power source.

Connect:

 The Red probe to the side of the

circuit closest to the power source.

 The Black probe to the side of

the circuit to ground.

 Turn the power ON and test.

Note: Current must always be measured with the meter test probes connected in series, as described.

19 20

Meter Functions –Temperature (℃/ 0F )

IMPORTANT: To avoid heat damage to the meter, keep it away from sources of very high temperature. The life of the Temperature Probe is also reduced when subjected to very high temperatures. Probe operating range is –4o to 1,400 oF.

Select the Temperature

( ℃ / 0F ) function with the

rotary switch.

Insert the temperature probe

connector into the K-type thermocouple socket.

Touch the end of the temperature sensor to the area or surface of the object to be measured.

Temperature Sensor

Temperature probe

Meter Functions –Frequency(Hz)

Select the Frequency

(Freq) setting with the rotary switch.

Adjust the trigger level to

the setting that gives the most stable and accurate reading.

Insert:

 Black lead in COM terminal.  Red lead in V-Ω-RPM terminal.

Connect the Black test probe to ground.

Connect the Red test probe to

the “signal out” wire of the

sensor to be tested.

21 22

Meter Functions-Dwell ( )

Select the proper Dwell

range with the rotary switch.

Insert:

 Black lead in COM terminal.  Red lead in V- Ω -RPM

terminal.

Connect the Black test probe to ground.

Connect the Red test probe to the wire that connects to the breaker points (see illustration).

Meter Functions-Duty Cycle (%)

Select the % Duty Cycle

range with the rotary switch.

Insert:

 Black lead in COM terminal.  Red lead in V-Ω-RPM terminal.

Connect the Black test probe to ground. Connect the Red test probe to the signal wire circuit.

The illustration for a mixture control solenoid is shown with the metering rod in the closed position. The meter will display the percentage of time the plunger is in the closed position. (low duty cycle) during one duty cycle.

23 24

Meter Functions- ms-PULSE (Pulse Width) & ms- PERIOD (Period)

Pulse Width is the length of time an actuator is energized. For example, fuel injectors are activated by an electronic pulse from the Engine Control Module (ECM).

This pulse generates a magnetic field that pulls the injectors nozzle valve open.

The pulse ends and the injector nozzle is closed. This open to close time is the Pulse Width and is measured in

milliseconds( ms).

The most common automotive application for measuring pulse width is on fuel injectors.

You can also measure the pulse width of the fuel mixture control solenoid and the idle air control motor.

This exercise shows how to measure Pulse Width on Port Fuel injectors.

To measure pulse width (mS):

Select the mS-Pulse function

with the rotary switch .

Press the ± TRIG button for

2 seconds until the negative (-) trigger slope is displayed on the lower left side of the display.

NOTE : The applied time for

most fuel injectors is displayed on the negative (-) slope.

Insert:

Black lead in COM jack. Red lead in RPM-V-Ω jack.

Connect:

Jumper wires between the fuel injector and the harness connector.

Black test probe to a good ground at the fuel injector or the negative (-) vehicle battery post.

Red test probe to the fuel injector solenoid driver input on the jumper cable.

Start the engine. A pulse width in milliseconds should be read.

If reading is too high or unstable,,adjust the trigger level by pressing the ± TRIG button for improved reading.

25 26

Meter Functions-RPM/×10RPM

Select the RPM range with the

rotary switch.

OR

Select the × 10RPM range

with the rotary switch (1,000 to 12,000 RPM). Multiply the displayed reading by ten to get actual RPM.

Press STROKE / DIS

button toward select through

RPM for 4-stroke, RPM For 2-stroke and DIS.

Insert the inductive pickup connecting terminal into the meter.

 Black lead in COM terminal.  Red lead in V- Ω -RPM

terminal.

Connect the inductive pickup to a spark plug wire. If no reading is received, unhook the clamp, turn it over and connect again.

Note:

 Position the inductive pick-up as far away from the distributor and the

exhaust manifold as possible.

 Position the inductive pick-up to within six inches of the spark plug or move

it to another plug wire if no reading or an erratic reading is received.

RPM 4 : For RPM of 4-stroke engines which have 1 ignition on

every 4 engine strokes

RPM 2 : For RPM of DIS ( Distributorless lgnition System) &

2-stroke engines which Have 1 ignition on every 2 engine strokes

PLEASE NOTE- THE RPM PICK-UP HAS AN ADJUSTABLE SENSITIVITY SWITCH THAT CAN ALSO BE USED TO CORRECT AN

UNSTABLE READING.

Maintenance

Replacing The Battery

WARNING: To avoid electric shock, disconnect the test leads

from any source of voltage before removing the battery door.

1. When the battery become drained or drop below the operating voltage, “ ” will appear in the right-hand side of the LCD display. The battery should be replaced.

2. Follow instructions for installing battery. See the Battery Installation section below.

3. Dispose of the old battery properly.

WARNING: To avoid electric shock, do not operate your meter until the battery door is in place and fastened securely.

Battery Installation

WARNING: To avoid electric shock, disconnect the test leads

from any source of voltage before removing the battery door.

1. Disconnect the test leads from the meter.

2. Open the battery door by loosening the screw using a Phillips head screwdriver.

3. Insert the battery into battery holder, observing the correct polarity.

4. Put the battery door back in place. Secure with the one screw.

WARNING: To avoid electric shock, do not operate the meter until the battery door is in place and fastened securely.

NOTE: If your meter does not work properly, check the fuses and

battery to make sure that they are still good and that they are properly inserted.

4

2 4 2

27 28

Replacing The Fuses

WARNING: To avoid electric shock, disconnect the test leads

from any source of voltage before removing the fuse door.

1. Disconnect the test leads from the meter and any item under test.

2. Open the fuse door by loosening the screw on the door using a Phillips head screwdriver.

3. Remove the old fuse from its holder by gently pulling it out.

4. Install the new fuse into the holder.

5. Always use a fuse of the proper size and value (0.5A/250V fast blow for the 400mA range, 20A/500V fast blow for the20A range).

6. Put the fuse door back in place. Insert the screw and tighten it

securely.

WARNING: To avoid electric shock, do not operate your meter until

the fuse door is in place and fastened securely

Trouble Shooting

1. Meter will not turn ON.

 Check the battery contacts for a tight fit.  Check for a minimum battery voltage of 8.0 volts.

2. Ampere reading is erratic or there is no reading at all.

 Disassemble the meter back cover and test the fuses for

continuity.

3. Meter reading is erratic.

 Printed circuit board damaged from handling with hands.  Low battery.  Open circuit in a test lead (frayed or broken wire).  Wrong range selected.  “Blown” fuse.

4. Meter readings do not change.

 “Hold” feature is still toggled ON.

F20A,500V

29 30

General Specifications

· Safety: Designed to Protection Class III requirement of

EN61010-1 over-voltage Category III (CATIII).

· Maximum Voltage: 500V rms. (Between any terminal and

earth ground)

· RS232: Optically isolated PC interface-optional RS-232 cable

windows® 95/98/2000/XP compatible software allows user to collect, display, plot and save data.

 Display: 4 3/4 digit (4000 counts) liquid crystal display (LCD),

with function and units sign annunciators.

 Analog Bar Graph: 40 segments with measurements 15 times

per second.

 Polarity: Automatic, (-) negative polarity indication.  Overrange Indication: “OL” mark indication.  Low Battery Indication: The is displayed when the

battery voltage drops below the operating level.

 Auto power off: Meter automatically shuts down after approx.

30 minutes of inactivity.

 Measurement Rate: 2 times per second, nominal.  Operating Environment: 0℃ to 50℃

(32 0F to 122 0F) at<70% R.H.  Storage Environment: -20℃ to 60℃ (-4 F to 140 ) at<80% R.H.

 Temperature Coefficient: 0.2×(specified accuracy)/ ℃ (＜18℃ or＞28℃) .  Power: Single standard 9 Volt battery (NEDA 1604 or IEC 6F22).

 Battery Life: 200 hours typical with alkaline battery.  Fuse: 20A/500V, φ 10.3 × 38mm fast acting ceramic type.

0.5A/250V,φ 5×20mm fast acting ceramic type.

· Dimensions: 197 (H) x 88.4 (W) x 41.2 (D) mm

· Weight: Approx.: 635g including holster.

Electrical Specifications

*Accuracy is given as±([% of reading]+[number of least significant digits]) at 18℃ to 28℃(65 F to 83 F), with relative humidity up to 70%.

RPM (Tach)

Range

Resolution

Accuracy

RPM 4

600~4000

RPM

1 RPM

+2 % of rdg + 4 dgts

600~12000 RPM (X10 RPM)

10 RPM

RPM2/DIS

300~4000

RPM

1 RPM

300~6000 RPM (X10 RPM)

10 RPM

Effect Reading: >600 RPM Overload protection: 250V dc or ac rms.

Dwell Angle

Cylinder

Range

Resolution

Accuracy

1CYL

0~360.0°

0.1°

+2.0% of rdg + 4 dgts

2CYL

0~180.0°

3CYL

0~120.0°

4CYL

0~90.0°

5CYL

0~72.0°

6CYL

0~60.0°

8CYL

0~45.0°

10CYL

0~36.0°

12CYL

0~30.0°

31 32

Overload protection: 250V dc or ac rms.

DC Voltage (Auto-ranging for uA and mA)

Range

Resolution

Accuracy

400.0mV

0.1mV

+0.5% of rdg + 2 dgts

4.000V

1mV

+1.5% of rdg + 2 dgts

40.00V

10mV

400.0V

100mV

1000V

1V

+1.8% of rdg + 2 dgts

Input Impedance: 10MΩ . Maximum Input: 1000V dc or 750V ac rms. AC Voltage (Auto-ranging except 400mV)

Range

Resolution

Accuracy

400.0mV

0.1mV

+1.5%of rdg + 60 dgts

4.000V

1mV

+1.0% of rdg + 3 dgts

40.00V

10mV

+1.5% of rdg + 3 dgts

400.0V

100mV

750V

1V

+2.0% of rdg + 4 dgts

Input Impedance: 10MΩ Frequency Range: 50 to 400Hz

Maximum Input: 1000V dc or 750V ac rms. DC Current (Auto-ranging for uA and mA)

Range

Resolution

Accuracy

400.0uA

0.1uA

+1.0% of rdg + 3 dgts

4000uA

1uA

+1.5% of rdg + 3 dgts

40.00mA

10uA

400.0mA

100uA

4A

1mA

+2.5% of rdg + 5 dgts 20A

10mA

Overload Protection: 0.5A / 250V and 20A / 500V Fuse. Maximum Input: 400mA dc or 400mA ac rms on uA / mA ranges,

20A dc or ac rms on 20A range.

AC Current (Auto-ranging)

Range

Resolution

Accuracy

400.0uA

0.1uA

+1.5% of rdg + 5 dgts

4000uA

1uA

+1.8% of rdg + 5 dgts

40.00mA

10uA

400.0mA

100uA

4A

1mA

+3.0% of rdg + 7 dgts 20A

10mA

Overload Protection: 0.5A / 250V and 20A / 500V Fuse. Frequency Range: 50 to 400 Hz Maximum Input: 400mA dc or 400mA ac rms on uA / mA ranges,

20A dc or ac rms on 20A range.

Resistance (Auto-ranging)-

Range

Resolution

Accuracy

400.0Ω

0.1Ω

+1.2% of rdg + 4 dgts

4.000kΩ

1Ω

+1.0% of rdg + 2 dgts

40.00kΩ

10Ω

+1.2% of rdg + 2 dgts

400.0kΩ

100Ω

4.000MΩ

1kΩ

40.00MΩ

10kΩ

+2.0% of rdg + 3 dgts

Input Protection: 250V dc or 250V ac rms. Capacitance (Auto-ranging)

Range

Resolution

Accuracy

40.00nF

10pF

+5.0% of rdg + 7 dgts

400.0nF

0.1nF

33 34

4.000uF

1nF

+3.0% of rdg + 5 dgts

40.00uF

10nF

100.0uF

0.1uF

+5.0% of rdg + 5 dgts

Input Protection: 250V dc or 250V ac rms.

Frequency (Auto-ranging)

Range

Resolution

Accuracy

5Hz

0.001Hz

+1.5% of rdg + 5 dgts 50Hz

0.01Hz

500Hz

0.1Hz

+1.2% of rdg + 3 dgts 5kHz

1Hz

30.00kHz

10Hz

Sensitivity: >5V RMS MIN. Overload protection: 250V dc or ac rms.

Duty Cycle

Range

Resolution

Accuracy

0.1%~99.9%

0.1%

+1.2% of rdg + 4 dgts

Pulse width: >100us, <100ms; (Continued next page) Sensitivity: <0.5V RMS Overload protection: 250V dc or ac rms.

Period

Range

Resolution

Accuracy

2.0~ 20.0ms

0.1ms

+3% of rdg + 10 dgts

Overload protection: 250V dc or ac rms. Pulse Width

Range

Resolution

Accuracy

2.0~ 10.0ms

0.1ms

+3% of rdg +10 dgts

Overload protection: 250V dc or ac rms

Temperature

Range

Resolution

Accuracy

-20oC~+760oC

1 oC

+3% of rdg +5dgts(Meter only, probe accuracy not included)

-4 oF~+1400 oF

1oF

Sensor: Type K Thermocouple

Diode Test

Test current

Resolution

Accuracy

0.3mA typical

1 mV

+10% of rdg + 5 dgts

Open circuit voltage: 1.5V dc typical Overload protection: 250V dc or ac rms.

Audible continuity

Audible threshold: Less than 150Ω Test current: <0.3mA Overload protection: 250V dc or ac rms.

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Ready – to – Use Windows® Application Program

Hardware and Software Requirements

386/25 personal computer, 4 Megabytes of memory or better. windows® 95 or above.

RS232: Optically isolated PC interface-optional RS-232 cable windows® 95/98/2000/XP compatible software allows user to collect, display, plot and save data.

Printing Data and Graph tester report

·Print data tester report

·Please press off line

·Move the cursor to the number of data that you want to print out.

(e.g.: If you want to print the date area from number 0 to 100, move the cursor to number 0 and click. If you want to print the data area from number 50 to 100, move the cursor to number 50 and click).

·Please press printer icon.

·A information show: List "Y" or "N" - press "Y".

·The data tester report will print out the selected data sets.

Print graph tester report

·Please press off line

·Move the cursor to the number of data that you want to print out.

(e.g.: If you want to print the graph area from number 0 to 100, move the cursor to number 0 and click. If you want to print the graph area from number 50 to 100, move the cursor to number 50 and click).

·Please press printer icon.

· A information show: List "Y" or "N" - press "N". A information

show Graph "Y" or "N" press "Y".

·The graph tester report will print out the selected graph sets.

Installation of the Windows Application program

A. Start Microsoft ® Windows® B. Insert disk in drive CD C. From the program Manager, select file menu and choose Run D. For Win98 from the start, select Execute. E. Type E :\setup and press Enter Key

Note: If you are using 386 PC, it might takes more than 3 minutes.

Description of Windows® Application Program

When the ICON “Panel” is selected and executed,the program automatically search for connected DMM/Data Logger or available

serial port. If no serial port is available, then a message of “:No

Com:” shall be displayed, and the program exits itself. Once

communication port is setup, a main window will be displayed on the screen. The Layout of the window is as Figure:

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Note: Please click “Help” on the PC interface for detailed

instruction.