background image

      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. 

 

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...

Reviews: