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Extech EC500 pH measurement equipment 0 - 14 pH EC500 User Manual

Product codes
EC500
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Page of 13
EC500-EU V2.2   8/05 
3 
Specifications 
Display 
2000 count LCD with Bargraph 
pH Range 
0.00 to 14.00 
pH Accuracy 
±0.01 pH typical 
pH ATC Range 
0°C to 90
o
C (32°F to 194
o
F) 
pH Reference Junction 
Permanent gel, non-refillable 
Conductivity ranges 
0 to 199.9µS/cm 
 
200 to 1999µS/cm 
 
2.00 to 19.99mS/cm 
TDS ranges 
0 to 99.9ppm or mg/L 
(Variable ratio) 
100 to 999ppm or mg/L 
1.00 to 9.99ppt or g/L 
Salinity range 
0 to 99.9ppm 
(Fixed ration of 0.5) 
100 to 999ppm 
1.00 to 9.99ppt 
TDS Ratio 
0.4 to 1.0 adjustable 
Salinity Ratio 
0.5 Fixed 
Conductivity ATC 
2.0% per 
o
C 
Temperature Range 
-5.0°C to 90.0
o
C (23.0°F to 194
o
F) 
Temperature Resolution 
0.1 up to 99.9, 1 >100 
Temperature Accuracy 
±1
°C; 1.8°F (from -5  to 50°C; 23 to 122°F) 
 ±3
°C; 5.4°F (from 50 to 90°C; 122 to 194°F) 
Conductivity ATC Range   
0.0°C to 60.0
o
C (32.0°F to 140
o
F) 
Accuracy 
Conductivity: ±2% full scale 
TDS: ±2% full scale 
Salinity: ±2% full scale 
Measurement Storage 
25 tagged (numbered) readings 
Low battery indication 
‘BAT’ appears on the LCD 
Power 
Four (4) CR2032 Lithium Ion Batteries 
Auto power off 
After 10 minutes (override available) 
Operating conditions  
-5°C to 50
o
C (23°F to 122
o
F) 
Dimensions 
40 x 200 x 40 mm (1.6 x 7.9 x 1.6”) 
Weight 
93 g (3.3 oz)