Page 2 - PRELIMINARY EXAMINATION; Each meter is supplied complete with:; Note: Save all packing material until you are
3 2 PRELIMINARY EXAMINATION Remove the instrument from the packing ma-terial and examine it to make sure that nodamage has occurred during shipping. If thereis any damage, notify your Dealer. Each meter is supplied complete with: • HI 76401 DO probe • Spare membrane with O-ring (2 pcs) • Protective ...
Page 4 - Wet the sensor by soaking the bottom; SPECIFICATIONS; approx. 100 hours of continuous use
7 6 PROBE INITIAL PREPARATION PROBE PREPARATION All DO probes are shipped dry. To hydratethe probe and prepare it for use, connect it tothe meter and proceed as follows. 1. Remove the red & black plastic cap. This cap isonly used for protecting theprobe during shipment, andcan be thrown away. 2....
Page 6 - SLOPE CALIBRATION
11 10 E.g. at 20.5°C the trimmer should be ad-justed to read 9.08. ALTITUDE COMPENSATION If the calibration is not performed at sea level,a correction should be made for the altitudeeffect according to Table 2 on page 13.E.g. at 20.5°C and at an altitude of 300 mabove sea level, the "Slope" ...
Page 7 - Table 2; Correction for measurements; Table 1
13 12 Table 2 Correction for measurements at different altitude Table 1 Dissolved Oxygen (ppm) in Fresh Water as a function of Temperature (°C) °C 0123456789 1011121314151617181920212223242526272829303132333435363738394041424344454647484950 ALTITUDE(METERS) Sea level 50 10015020030040050060070080090...
Page 8 - Using a; ChecktempC or; Table 3; Correction for salinity effect; Quantity to be
15 14 The temperature scale should be calibratedat least every 3 months or whenever thereadings are in doubt. • I m m e r s e t h e b o t t o m60 mm (2.4") of the probein a beaker containing wa-ter. • Switch the knob to the"°C" position and agitatethe water for at least 10minutes to reac...
Page 9 - PROBE & MEMBRANE MAINTENANCE; TWIST; TAKING MEASUREMENTS
17 16 PROBE & MEMBRANE MAINTENANCE The D.O. probe body is made of reinforcedplastic for maximum durability.A thermistor temperature sensor provides tem-perature measurements and compensation.When not in use, it is always recommendedto protect the probe against damage and dirtwith the supplied ca...
Page 10 - BATTERY REPLACEMENT
19 18 BATTERY REPLACEMENT When the battery level islow, a "V" will be displayedto warn the user that thebattery should be replaced. The meter will still work for approximately 4hours, then the display will be shut-off toavoid erroneous readings. Battery replacement must only take place ina s...
Page 11 - WARRANTY; Hanna Instruments reserves the right to; ACCESSORIES; Zero oxygen solution, 230 mL
21 20 WARRANTY All Hanna Instruments meters are warrantedfor two years against defects in workman-ship and materials when used for their in-tended purpose and maintained according tothe instructions. The probes are warrantedfor a period of six months. Damages due to accident, misuse, tamper-ing or l...
Page 12 - CE DECLARATION OF CONFORMITY
23 22 CE DECLARATION OF CONFORMITY Recommendations for Users Before using this product, make sure that it is entirely suitable for the environmentin which it is used. Operation of this instrument in residential area could cause unacceptable interfer-ences to radio and TV equipments, requiring the op...
Page 13 - SALES AND TECHNICAL SERVICE CONTACTS
24 MAN8043R2 08/05 SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel. & Fax (02) 2758.683 Germany: Tel. (07851) 9129-0 • Fax (07851) 9129-99 Greece: Tel. (210) 823.5192 • Fax (210) 884.0210 Indonesia:...