2
SDL150-EU-EN-V2.1-11/11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Introduction
Congratulations on your purchase of the Extech SDL150 Dissolved Oxygen Meter, an SD Logger
Series meter. This meter displays and stores Dissolved Oxygen readings in the 0 to 20.0mg/L
range, Oxygen in air from 0 to 100%, and Temperature from 0 to 50
o
C (32 to 122
o
F). The SDL150
uses a polarographic oxygen probe that also measures temperature. %Salt and Altitude
compensation can be fine tuned by the user in the Setup mode. Logged data readings are stored on
an SD card for transfer to a PC. In addition, an RS232 port allows data streaming to a PC. This
meter is shipped fully tested and calibrated and, with proper use, will provide years of reliable
service.
Safety
International Safety Symbols
This symbol, adjacent to another symbol or terminal, indicates the user must refer to the
manual for further information.
Meter Description
1.
Oxygen Probe Input Plug
2.
Dissolved Oxygen or Oxygen in Air reading
3.
Temperature reading
4.
Power ON-OFF
key
5.
SET and Clock
key
6.
Up arrow
▲
/ CAL key
7.
Down arrow
▼
/ Function key
8.
ENTER and LOG key
9.
SD card slot
10. Dissolved Oxygen/Temperature Probe
11. HOLD and Backlight
key
12. MAX-MIN key
13. PC interface jack
14. Reset button
15. Power Adaptor jack
Notes:
Items 13, 14, and 15 are located behind the snap-off compartment cover on meter’s right side.
Battery compartment, tilt stand, and tripod mount are located on the rear of the instrument
