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

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

17. Zero key

19. % Salt key