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Manual abstract: user guide HANNA INSTRUMENTS HI 98152
Detailed instructions for use are in the User's Guide.
[. . . ] Wate rpro of
pHep 2
Pocket-Sized pH Meter
®
OPERATION:
· Do not be alarmed if white crystals appear around the cap. This is normal with pH electrodes and they dissolve when rinsed with water. [. . . ] · Allow the reading to stabilize and turn the pH 4/pH 10 Calibration Trimmer to read 4. 0 (or 10. 0).
Two-point calibration is now complete. ALWAYS USE FRESH BUFFERS FOR CALIBRATION & NEVER REUSE THEM.
BATTERY REPLACEMENT:
Once the batteries are low, the display segments fade or become blank. Use a coin to remove the battery compartment cover located on the top of the tester (it will open with just a 1/4 turn). Remove the cover with its O-ring and replace all the batteries paying attention to their polarity. Reinsert the cover with the O-ring and close it with a coin. It is recommended to recalibrate the instrument whenever you replace the batteries. Batteries should only be replaced in a safe area using the battery type specified in this instruction manual.
DO NOT USE DISTILLED OR DEIONIZED WATER FOR STORAGE PURPOSES. · Large differences in pH readings (±0. 5pH) could be due to lack of calibration, dry electrode or run-down batteries.
CALIBRATION:
The calibration procedure is simple and fast. · Immerse the tester in a pH 7 buffer solution (HI 7007). · Allow the reading to stabilize and using a small screwdriver turn the pH7 Calibration Trimmer to read 7. 0.
HI 7
030
0
RECOMMENDATIONS FOR USERS:
Before using this product, make sure that it is entirely suitable for the environment in which it is used. Operation of this instrument in residential areas could cause interference to radio and TV equipment. The glass bulb at the end of the pH electrode is sensitive to electrostatic discharge. [. . . ] To avoid damage or burns, do not perform any measurement in microwave ovens.
MADE IN PORTUGAL PRINTED IN PORTUGAL
· Rinse the electrode with water and immerse it in a pH 4 (HI 7004) or a pH 10 (HI 7010) buffer solution.
Wate rpro of
pHep 2
Pocket-Sized pH Meter
SPECIFICATIONS:
RANGE 0. 0 to 14. 0 pH RESOLUTION 0. 1 pH ACCURACY ±0. 1 pH (@20°C/68°F) TYPICAL EMC ±0. 1 pH DEVIATION TEMPERATURE Automatic from COMPENSATION 0 to 50°C (32 to 122°F) ENVIRONMENT 0 to 50°C (32 to 122°F) 100% RH BATTERY TYPE 3 x 1. 4V alkaline LIFE 350 hours approx. DIMENSIONS 150x30x24 mm (5. 9x1. 2x0. 9") WEIGHT 85 g (3 oz. )
®
ACCESSORIES:
HI 77400P Calibration sachets pH 4 & pH 7 (2 0 mL, 5 pcs each) HI 77700P Calibration sachets pH 7 (2 0 mL, 10 pcs) HI 770710P Calibration sachets pH 7 & pH 10 (2 0 mL, 5 pcs each) HI 7004L pH 4 calibration solution (460 mL) HI 7004M pH 4 calibration solution (230 mL) HI 7007L pH 7 calibration solution (460 mL) HI 7007M pH 7 calibration solution (230 mL) HI 7010L pH 10 calibration solution (460 mL) HI 7010M pH 10 calibration solution (230 mL) HI 70300L Storage solution (460 mL) HI 70300M Storage solution (230 mL)
pHep® is a registered Trademark of "Hanna Instruments"
Visit our Internet Home Page: www. hannainst. com
Authorized Dealer
ISPHEP2R1
02/98 [. . . ]
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