eutech-instruments waterproof cyberscan pc 10 phconductivity meter 사용자 설명서

Instruction Manual 

PC 10 

- 19 - 

LCD Display 

Indicates 

Cause 

Solution 

Err annunciator  

Unrecognised input 
from keypad 

Wrong input in selected 
mode.  

Release key. Select valid 
operations depending on 
mode.  

CAL & Err 
annunciators 
blink.  

Calibration error.  

Wrong value input at 
calibration.  
Dirty probe.  

Check your input value, 
clean probe.  
See Calibration sections or 
Probe Maintenance 
section.  

Battery indicator 
blinks 

Low battery level.  

Need new batteries or 
battery connection is 
bad.  

Clean battery contacts. 
Replace batteries with fresh 
ones, noting polarity.  

Err 1 (in primary 
display) 

Memory write error.  

Instrument too old (> 10 
years).  Hardware 
failure.  

Turn meter on and off 
again.  If message persists, 
return unit*.  

Err. 2 (in primary 
display) 

Checksum error.  

Batteries too weak.  
 
 
Hardware failure.  

Press ENTER, then turn off 
meter.  Change batteries.  
Recalibrate.  
Return unit *.  

Err. 3 

A/D converter error.  

Faulty hardware 

Return unit *.  

* See “Warranty” on page 24 and “Return of Items” on page 25.  

If an error message appears in the primary display (the upper row of larger digits), switching 
off the meter and switching it on again may eliminate the error message.  See Figure 26 
below.  

If error persists, or the meter shows incorrect values, return the meter.  

For a complete diagram of the LCD display, see Figure 2 on page 2.