Omega Engineering Omegaette HH303, User Manual

Date JUN./06/2002 

Calibration Procedure 

Page   

1 of 1 

Model No. 

HH

302 

& HH

303    

Environmental:  23 

±

 5 

℃

K,J Thermometer (

HH

302) calibrate procedure 

1.  Hold REL+AVG+TIMER then press power , release all button ,press HOLD +C/F in 5 

seconds, LCD will show “CAL 1”. 

2.  Input 52.418 mV via copper wire , press REL button when LCD display a stable 

value(about 14,000 count). Then LCD will display “CAL 2” 

3.  Input 33.290 mV via copper wire, press REL button when LCD display a stable 

value(about 18,000 count), Then LCD will display “CAL 3” 

4.  Input 0 C via thermocouple wire, press REL button when LCD display a stable 

value(less then 1000 count),     

Now , press REL button again to finish calibrating . 
 

K,J Thermometer (

HH

303) calibrate procedure 

1.  Hold REL+AVG+ T1-T2 then press power , release all button ,press HOLD +C/F in 5 

seconds, LCD will show “CAL 1”. 

2.  Input 52.418 mV via copper wire , press REL button when LCD display a stable 

value(about 14,000 count). Then LCD will display “CAL 2” 

3.  Input 33.290 mV via copper wire, press REL button when LCD display a stable 

value(about 18,000 count), Then LCD will display “CAL 3” 

4.  Input 0 C via thermocouple wire, press REL button when LCD display a stable 

value(less then 1000 count),     

Now , press REL button again to finish calibrating . 
 

Omega