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407510-EU-EN-V7.2-5/12 

7

Battery Replacement 

The low battery indication LBT appears on the LCD when the battery runs low. 
To replace the battery: 
1. 

Remove the meter's rubber protective cover to access the rear battery compartment. 

2. 

Remove the battery compartment cover using a small coin or screwdriver and remove the 9V battery. 

3. 

Replace the 9V battery and reinstall the cover and holster. 

You, as the end user, are legally bound (

Battery ordinance

) to return all used batteries and 

accumulators; 

disposal in the household garbage is prohibited!

 

You can hand over your used batteries / accumulators at collection points in your community 
or wherever batteries / accumulators are sold! 

Disposal: 

Follow the valid legal stipulations in respect of the disposal of the device at the end 

of its lifecycle 

Specifications 

General Specifications

 

Circuit 

Custom one-chip LSI microprocessor circuit 

Display 

Dual function 13 mm (0.5") 1999 count LCD w/ contrast adjust 

Measurements Dissolved 

O

2

: mg/l (milligrams per liter); Oxygen in air: %; Temperature: 

°C/°F 

Data hold 

Data hold key freezes displayed reading 

Sensor Structure 

Remote Polarographic Dissolved Oxygen Sensor 

Temperature sensor: Precision thermistor 

Data recording 

Min/Max/Avg readings stored for later recall 

Auto power off 

Meter turns off after 10 minutes 

Sample rate 

0.4 Sec (approx.) 

Data Output 

RS 232 PC serial interface 

Operating conditions 

Temperature: 0 to 50 °C (32 to 122 °F); Humidity: < 80% RH 

Battery power 

9V alkaline battery 

Power Consumption 

Approx. 6.6 mA DC 

Weight 

335 g / 0.74 lbs.(including batteries & probe) 

Dimensions 

Main instrument: 180 x 72 x 32mm (7.1 x 2.8 x1.3") 

Probe: 125 x 20mm (4.9" x 0.8") length/diameter 

Accessories 

Carrying case, 9V battery, and 5 membranes 

Optional accessories 

Membranes, data acquisition software & RS232 interface cable 

Electrical Specifications

 

Measurement Range 

Resolution 

Accuracy 

 

Dissolved Oxygen 

0.0 - 19.9 mg/L 

0.1mg/L 

+ 0.4 mg/L 

Oxygen in air 

0 - 100% O

2

 

0.1 % O

2

 

+ 0.7% O

2

 

Temperature (probe 
only) 

32 to 122 

o

0 to 50 

o

0.1

o

F/C ±1.5 

o

+ 0.8 

o

C  

Temperature (automatic) 

0 to 50

o

C (32 to 122 

o

F) 

Salt 

0 to 39%  

Compensation 
adjustments 

Altitude 

0 to 3900 meters 

Copyright 

©

 2012 Extech Instruments Corporation (a FLIR company) 

All rights reserved including the right of reproduction in whole or in part in any form. 

www.extech.com 

Summary of Contents for 407510

Page 1: ...User s Manual Heavy Duty Dissolved Oxygen Meter Model 407510 ...

Page 2: ...th 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 2...

Page 3: ...le Excess Electrolyte may be forced out through the threads Wipe clean 4 Lightly tap the probe to remove any air bubbles Calibration For first time use or after long periods several days of non use calibrate the instrument using the following steps The procedure should be performed in an open well ventilated area 1 Ensure that the sensor is DISCONNECTED from the meter 2 Turn ON the meter 3 Slide t...

Page 4: ...TITUDE key and the display will indicate a 0 in the middle of the LCD and an H on the lower portion of the LCD 2 Press the Factor Adj key once to add 100 meters twice to add 200 meters and so on Maximum compensation is 3900 meters 3 Once the desired compensation is displayed press the ALTITUDE key again to store the value Taking Measurements 1 Immerse the probe in the solution under test For best ...

Page 5: ...Auto shut off feature that preserves battery life The meter will automatically turn off if no function button is pressed in any 10 minute period To disable this feature press the RECORD key to engage the record function LCD Contrast Adjust It may be necessary to adjust the display contrast due to a change in viewing angle or voltage drift Use the LCD Contrast adjustment located on the right side o...

Page 6: ...d if it comes in contact with solid objects Replacement probe heads are available from your local distributor Replacement procedure 1 Unscrew the probe head and electrolyte container from the probe handle and discard 2 Fill the new probe head electrolyte container with electrolyte 3 Screw the probe head onto the probe handle Excess electrolyte may be forced out through the threads Wipe clean 4 Lig...

Page 7: ...Data hold key freezes displayed reading Sensor Structure Remote Polarographic Dissolved Oxygen Sensor Temperature sensor Precision thermistor Data recording Min Max Avg readings stored for later recall Auto power off Meter turns off after 10 minutes Sample rate 0 4 Sec approx Data Output RS 232 PC serial interface Operating conditions Temperature 0 to 50 C 32 to 122 F Humidity 80 RH Battery power ...

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