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07

08

Using the Meter

Display Hold

During measurement, press     /     to hold the current 
reading on the display.  Press again to release the hold.

Manual Mode

• The default range in voltage and resistance modes is 
   auto.  To switch to manual range, press “

RAN

” and 

   the display switches to manual mode.  Each press of the 
   button increases the range and returns to the lowest 
   range when pressed in the highest range.
• Hold “

RAN

” to switch back to auto-range.

Note:

In current mode, manual is only mode available.In 
frequency and capacitance modes, only auto-range is 
available.

Switching Between Functions

 

When the meter is in voltage mode, press “

FUNC

” to 

   switch between DC and AC voltage.

 

When the meter is in resistance/continuity/capacitance/

  diode mode, press “FUNC” to switch between them.

 

When the meter is in temperature mode, press “

FUNC

” 

   to switch between Fahrenheit and Celsius units.

Backlight and worklight

• Hold           to turn on the display backlight; the backlight 
  will stay on for 15 seconds before it automatically turns 
  off.
• To turn off the backlight manually, hold           again.
• When the meter is in current mode, turning on the 
  backlight will also activate the worklight, making it easier 
  to use the clamp in dark areas.     

/

/

Note:

• The meter uses an LED for a backlight; even though the 
  backlight is set to turn off after 15 seconds, use only when 
  necessary to conserve battery life.

Auto Power Off

• If the meter is not used for 15 minutes, the meter will turn 
  itself off to conserve battery life. 
• To turn the meter back on after auto off, press “

FUNC

”.

• To disable auto power off, hold “

FUNC

” while turning the 

   meter on. 

Measurement Preparation

• Make sure that when measuring current, the current 
  being measured does not exceed the maximum rated 
  current.  This can cause overheating and damage the 
  meter.
• When measuring in manual range and the value to be 
  measured is unknown, start in the highest range and 
  adjust the range as needed. 
• Make sure to turn the rotary switch to the proper position 
  before connecting the leads to a circuit.
• When connecting to a circuit, connect the black lead

 

  

(COM jack) first before connecting the red lead (INPUT 

  jack). Remove the leads in the opposite order when 
  finished.

Summary of Contents for MS2601

Page 1: ...MS2601 Electrical Tester User s Manual CAT III 600 V 600V CAT III Hz A V Loz A Temp FUNC RAN Hz NCV MS2601 ELECTRICALTESTER 600V CAT III COM MAX 200A Temp A...

Page 2: ...ode 7 Backlight and worklight 8 Auto Power Off 8 Measurement Preparation 8 AC Current 9 Switching Between Functions 7 AC DC Voltage 10 Resistance 11 Diodes 12 Continuity 11 Capacitance 12 Non Contact...

Page 3: ...ument to Mastech no service will be provided without a return authorization The user is responsible for properly packing the unit and charges such as shipping freight and insurance charges The extent...

Page 4: ...e circuit first before switching between functions 12 Disconnect power and discharge all capacitors before measuring resistance capacitance continuity or diodes 13 Do not measure capacitance before th...

Page 5: ...een functions RAN button to switch to manual range button to hold the reading or to turn on backlight Hz button to switch between frequency and duty cycle NCV button to activate non contact voltage de...

Page 6: ...t automatically turns off To turn off the backlight manually hold again When the meter is in current mode turning on the backlight will also activate the worklight making it easier to use the clamp in...

Page 7: ...into INPUT jack 2 Turn the rotary switch to the V The default mode is DC voltage press FUNC to switch to AC voltage if necessary press FUNC to switch back to DC voltage 3 Connect the test leads across...

Page 8: ...istance is less than 50 the meter s buzzer will sound Note If the resistance is higher than 60M or the leads are disconnected the display shows OL Capacitance TO AVOID ELECTRICAL SHOCK AND INJURY TURN...

Page 9: ...lead into INPUT jack 2 Turn the rotary switch to the position Press FUNC to switch to AC voltage 3 Press Hz button to measure frequency 4 Press Hz again to measure duty if necessary 5 Connect the test...

Page 10: ...ault mode is F press FUNC to switch to C if necessary press FUNC to switch back to F 3 Touch the tip of the thermocouple to the object to be tested 4 Read the measured temperature value on the display...

Page 11: ...true reading will be shown 600mV 0 1mV 1000 A AC Voltage 0 8 reading 3 digits Range Resolution Accuracy 6V 0 001V 60V 0 01V 600V 0 1V Input impedance 10M Maximum input voltage 600V DC AC rms Frequency...

Page 12: ...measured resistance is less than 50 0 1 Description Function Resolution Continuity Over voltage protection 250V DC AC rms Diodes Displays forward biased voltage drop 0 001V Description Function Resolu...

Page 13: ...meter or personal injury To avoid electrical shock remove test leads from input jacks before cleaning To avoid false readings that could lead to possible electric shock replace the batteries as soon...

Page 14: ...electric shock make sure the probes are disconnected from the measured circuit before removingthe rear cover Make sure the rear cover is tightly screwed before using the instrument Warning Out of the...

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