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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. 

Summary of Contents for DT-9995

Page 1: ...2 MAX MIN RS232 Button 12 Relative Button 12 Meter Functions Voltage V 14 Resistance 15 Diode Check 16 Audible Continuity 17 AC or DC Current A 18 Temperature 0 F 19 Frequency Hz 20 Dwell 21 Duty Cycl...

Page 2: ...airing 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...

Page 3: ...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 di...

Page 4: ...5 6 Notes Getting Started his chapter will help you get started It describes the basic functions of the Meter...

Page 5: ...est 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...

Page 6: ...e 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 p...

Page 7: ...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...

Page 8: ...minal Red lead in V 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 paral...

Page 9: ...eter 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 RPM terminal Touch th...

Page 10: ...rrent 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...

Page 11: ...erature 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 Funct...

Page 12: ...stration Meter Functions Duty Cycle Select the Duty Cycle range with the rotary switch Insert Black lead in COM terminal Red lead in V RPM terminal Connect the Black test probe to ground Connect the R...

Page 13: ...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 negat...

Page 14: ...N 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...

Page 15: ...r 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 securel...

Page 16: ...ond nominal Operating Environment 0 to 50 32 0 F to 122 0 F 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...

Page 17: ...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...

Page 18: ...load 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 r...

Page 19: ...ant 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...

Page 20: ...37 38 Note Please click Help on the PC interface for detailed instruction...

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