Extech PRC15 Calibrator, PRC15 Manual Do Utilizador

4                                           PRC15-EU-EN-V1.2   01/13 

1. 

Use the POWER button to turn the unit ON or OFF. When the unit is powered up, a short 
self-test will ensue after which the display will stabilize. 

2. 

When the battery symbol flashes on the display, replace the battery as soon as possible. 
Low battery power may cause inaccurate readings and erratic meter operation. 

3. 

This instrument is equipped with Auto Power OFF which turns the meter off after 10 minutes 
of inactivity. To override this feature; press and hold the POWER button until the display 
icon “ATP” turns off. 

 

UNIT BUTTON 
Press the UNIT button in the current function to select mA or % units or V or mV in the voltage 

function. Voltage is autoranging in the MEASURE mode.  

 

I/O BUTTON 
Momentarily press the I/O button to select either SOURCE (output) or MEASURE (input).  
 

MODE BUTTON 
In the MEASURE mode, Press and Hold the MODE (I/O) button for 

1second

 to select either the 

current (mA/%) or voltage (mV/V) function. Release the button when the desired function appears. 

 

Press the Backlight button to turn the backlight on or off. 
 

ZERO (

) BUTTON 

In the MEASURE or SOURCE mode, Press and Hold the ZERO (

) button for 1 second to zero 

the meter. 

 
► ◄ ▼ and ▲ BUTTONS 
The arrow buttons are used to set the output value in the SOURCE mode. 

1. 

Select the SOURCE mode 

2. Press 

the 

► or ◄ button select a digit for adjustment. The blinking underline curser 

identifies the digit selected. 

3. Press 

the 

▼or ▲button to adjust the value of the digit. Press and Hold the ▼or ▲ button to 

rapidly adjust the value.