User Manual

407510 V7.0 10/06
2
Introduction
Congratulations on your purchase of Extech's Heavy Duty Dissolved Oxygen / Temperature
Meter which simultaneously displays Dissolved Oxygen or Oxygen in air, and Temperature.
Units of measure are mg/l for Dissolved Oxygen, % for Oxygen in air, and
o
C/
o
F for
temperature. Oxygen is measured with a remote sensor that also contains a thermistor for
measuring temperature. Advanced features include RS 232 PC serial interface, data hold, auto
shut off, and Min/Max/Avg recording.
Meter Description
1. LCD Display
2. POWER ON/OFF key
3. Data HOLD key
4. °C/°F selection key
5. LCD Contrast Adjust
6. RECORD key
7. RECALL key
8. Factor adjust key
9. Probe head
10. Sensor body
11. Sensor plug
12. Sensor jack
13. RS-232 output jack
14. Battery cover (rear)
15. Altitude compensation key
16. O
2
Cal key
17. Zero key
18. O
2
calibration key
19. % Salt key
99 Washington Street
Melrose, MA 02176
Phone [phone]
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
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