background image

Auto check mode: 

1. In the Auto Check mode, " SCAN/ ---- " 

appears in the display. The meter 
automatically senses the resistance, 
continuity, diode test, or capacitance. 

2. In the Auto Check mode, the RANGE 

button and HOLD button are disabled. 

 

 

Button: 

1. Use the 

  button to select 

resistance, continuity, diode test or 
capacitance

2. The 

  button also works as an on/off 

button. Depress the 

  button for 

more than 2 seconds to shut down the 
meter. Depress the 

  button again 

for more than 1 second to wake up the 
meter. If the meter is turned off with the 

 

button, it can only be turned on 

with this button. 

 

Data Hold Feature 

Press [HOLD] button to toggle in and out of 
the Data Hold mode.   
In the data hold mode, the "HOLD" indicator is 
displayed and the last reading is held on the 
display. 
Press the [HOLD] button again to release the 
hold and current readings are once again 
displayed. 
 

Содержание PRO-57

Страница 1: ...PRO 57 Tweezer Digital Multimeter OPERATING INSTRUCTIONS...

Страница 2: ...easurements Do not touch exposed metal pipes outlets fixtures etc which might be at ground potential Keep your body isolated from ground by using dry clothing rubber shoes rubber mats or any approved...

Страница 3: ...ond nominal Auto power off approx 10 minutes Operating environment 0 to 40 32 104 at 70 R H Storage temperature 20 to 60 4 to 140 at 80 R H with battery removed from meter Temperature Coefficient 0 1...

Страница 4: ...0 range Overload protection 30VDC or 30AC RMS CAPACITANCE Ranges 3nF 30nF 300nF 3 F 30 F 300 F 3mF 30mF Resolution 1pF Accuracy 3 0 rdg 10 dgts on 3nF to 300 F ranges 5 0 rdg 20 dgts on 3mF to 30mF ra...

Страница 5: ...le warning 0 03V Overload protection 30VDC or 30AC RMS OPERATION Before taking any measurements read the Safety Information section Always examine the instrument for damage contamination excessive dir...

Страница 6: ...so works as an on off button Depress the button for more than 2 seconds to shut down the meter Depress the button again for more than 1 second to wake up the meter If the meter is turned off with the...

Страница 7: ...1 Set the function to or position 2 Turn off power to the circuit under test External voltage across the components causes invalid readings 3 To toggle between the ohms continuity diode modes press M...

Страница 8: ...on to position 2 Touch the probes to the capacitor Observe polarity when measuring polarized capacitors 3 Read the capacitance directly from the display 4 Discharge the capacitor before taking capacit...

Страница 9: ...y Cancellation Of Auto Power Off Feature Press and hold the RANGE button while moving slide switch from off to any position to turn on the meter The auto power off feature is disabled Note APO indicat...

Страница 10: ...d period of time Power is supplied by a 3 volt button type lithium battery x1 CR2032 appears on the LCD display when replacement is needed 1 Set the Function Switch to OFF 2 Remove battery cover screw...

Отзывы: