Sper scientific 850045 Instruction Manual Download Page 12

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Display

LCD size: 29mm x 28mm

Measurement &
Range

Dissolved Oxygen: 0 to 20.0 mg/L

Temperature: 0 to 50 ºC
32 to 122 ºF

Resolution

Dissolved Oxygen: 0.1 mg/L

Oxygen in Air: 0.1% O

Temperature: 0.1 ºC

Accuracy

Dissolved Oxygen: ±0.4 mg/L

Oxygen in Air: ±0.7% O

Temperature: ±0.8 ºC/1.5 ºF

Power Off

Auto shut off

Data Hold

Holds the current displayed reading

Operating
Temperature

0 to 50 ºC
32 to 122 ºF

Sample Time

Approx. one (1) second

Operating
Humidity

Less than 80% RH

Power Supply

4-AAA Alkaline Batteries

Weight

176g / .4LB -includes battery and
probe

SPECIFICATIONS

Summary of Contents for 850045

Page 1: ...Dissolved Oxygen Pen Meter 850045 Instruction Manual ...

Page 2: ...TABLE OF CONTENTS Features 3 Front Panel Description 4 Measurement Procedures 7 9 Probe Maintenance 10 11 Specifications 12 13 Battery Replacement 14 Calibration 5 6 ...

Page 3: ...larographic D O probe including temperature sensor Automatic Temperature Compensation Microprocessor assures high accuracy Dual display LCD Auto power off IP 67 water resistance Maximum and Minimum Data hold FEATURES ...

Page 4: ...FRONT PANEL DESCRIPTION 4 FIGURE 1 1 6 1 1 1 7 1 5 1 2 1 3 1 4 1 1 1 2 1 3 1 4 1 5 1 6 1 7 ...

Page 5: ...er should be calibrated using the following steps 3 Remove the red protective cover Fig 1 7 from the black probe head Fig 1 5 The small sponge inside the red cover keeps the diaphragm moist with water 4 To turn the meter on press the Power On Off button Fig 1 2 5 The LCD display Fig 1 1 will show O2 and Temperature see example below Wait for approximately three 3 minutes until the upper display va...

Page 6: ... 6 30 CAL Flashing Counts down from 30 to 0 6 Press and release the HOLD button Fig 1 3 the display will read HOLD 7 Press and release the REC button Fig 1 4 the display will show a flashing CAL indicator and the upper value will change to 30 then countdown to 0 takes 30 seconds 8 Once the countdown has been completed the End indicator will be displayed momentarily then display will return to the ...

Page 7: ...1 5 must be immersed to a depth of 10cm It takes several minutes for the temperature of the probe and liquid to equalize 5 For accurate D O measurement of any liquid the probe should be moving Make sure that the velocity of the movement is at least 0 2 0 3 m s This can be achieved by shaking the probe Note To keep errors to a minimum during laboratory measurements use of a magnetic agitator is rec...

Page 8: ...d the REC button Fig 1 4 for at least 2 seconds to switch the temperature unit from ºC to ºF Note The temperature unit cannot be changed when the meter is in record mode when the REC indicator is displayed on the LCD Data Hold 1 While measuring press the Hold button Fig 1 3 to hold the displayed value The LCD will show the HOLD symbol 2 Press the Hold button once again to release the data hold fun...

Page 9: ...e display shows REC 2 Press the REC button the REC MAX symbol along with the maximum value shows on the display 3 Press the REC button again and the REC MIN symbol along with the minimum value shows on the display 4 To exit the record function press and hold the REC button for a minimum of 2 seconds The display will return to the current reading MEASUREMENT PROCEDURES 9 ...

Page 10: ... the Electrolyte fluid is dirty or has evaporated 2 If the Electrolyte fluid needs to be replaced refill the probe head completely following the steps shown in Figure 2 and recalibrate the DO meter see page 3 3 If the fluid has been replaced and the DO meter still does not calibrate correctly or give a stable reading check the probe head diaphragm for damage 4 The Teflon diaphragm is delicate and ...

Page 11: ...probe head to full capacity with fresh Electrolyte OXEL 03 fluid 4 Screw the probe head back on to the probe body Figure 2 3 If the diaphragm is damaged replace it with one of the spare probe heads provided with the meter 4 Refill the new probe head with Electrolyte fluid by following the steps shown below 2 1 2 2 2 3 Fill probe head with Electrolyte fluid ...

Page 12: ...erature 0 1 ºC Accuracy Dissolved Oxygen 0 4 mg L Oxygen in Air 0 7 O2 Temperature 0 8 ºC 1 5 ºF Power Off Auto shut off Data Hold Holds the current displayed reading Operating Temperature 0 to 50 ºC 32 to 122 ºF Sample Time Approx one 1 second Operating Humidity Less than 80 RH Power Supply 4 AAA Alkaline Batteries Weight 176g 4LB includes battery and probe SPECIFICATIONS 12 ...

Page 13: ...e IP 65 0 to 50 ºC 32 to 122 ºF IP 67 0 to 30 ºC 32 to 86 ºF Dimension 180 x 40 x 40mm 8 1 x 1 9 x 1 6 Accessories Included Instruction manual spare probe head diaphragm set 2 Electrolyte fluid OXEL 03 soft carrying case and batteries ...

Page 14: ...on is displayed in the upper left corner of the LCD Use 4 new AAA batteries 2 To replace the batteries open turn counter clockwise the Battery Cover Fig 1 6 3 Ensure the Battery Cover is secured after replacing the batteries X BATTERY REPLACEMENT 14 ...

Page 15: ... This warranty does not cover probes batteries or damage resulting from accident misuse or abuse of the product In order to obtain warranty service simply ship the unit postage prepaid to SPER SCIENTIFIC LTD 7720 East Redfield Suite 7 Scottsdale AZ 85260 Email info sperscientific com Phone 480 948 4448 Be sure to include your name address phone number and a detailed explanation of why you are retu...

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