Introduction; Specifications - Extech Instruments 407510 User Manual

Introduction

Congratulations on your purchase of Extech's Heavy Duty Dissolved Oxygen / Temperature
Meter which simultaneously displays Dissolved Oxygen, Oxygen in air, and Temperature. Units
of measure are mg/l for Dissolved Oxygen, % for Oxygen in air, and
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.

Specifications

General Specifications
Circuit
Display
Measurements
Data hold
Sensor Structure
Data recording
Auto power off
Sample rate
Data Output
Operating conditions Temperature: 32 to 122 °F (0 to 50 °C); Humidity: < 80% RH
Battery power
Power Consumption Approx. 6.6 mA DC
Weight
Dimensions
Accessories
Optional
accessories
Electrical Specifications
Measurement
Dissolved Oxygen
Oxygen in air
Temperature
(probe only)
Compensation
adjustments
Custom one-chip LSI microprocessor circuit
Dual function 0.5" (13 mm) 1999 count LCD w/ contrast adjust
Dissolved O : mg/l (milligrams per liter); Oxygen in air: %;
2
Temperature: °C/°F
Data hold key freezes displayed reading
Remote Polarographic Dissolved Oxygen Sensor
Temperature sensor: Precision thermistor
Min/Max/Avg readings stored for later recall
Meter turns off after 10 minutes
0.4 Sec (approx.)
RS 232 PC serial interface
9V alkaline battery
0.74 lbs. / 335 g (including batteries & probe)
Main instrument: 7.1 x 2.8 x1.3" (180 x 72 x 32mm)
Probe: 4.9" x 0.8" length/diameter (125 x 20mm)
Carrying case, 9V battery, and 5 membranes
Membranes, data acquisition software & RS232 interface cable
Range
0.0 - 19.9 mg/L
0 - 100% O
2
o
32 to 122 F
o
0 to 50 C
Temperature (automatic)
Salt
Altitude
Resolution
0.1mg/L
0.1 % O
o
0.1 F/C
32 to 122
0 to 39% (1% = ppt)
0 to 3900 meters
2 Model 407510
o o
C/ F for temperature.
Accuracy
+ 0.4 mg/L
+ 0.7% O
2 2
o
±1.5 F
o
+ 0.8 C
o o
F (0 to 50 C)
Ver. 2.1 May 2003