Hand PH Meter

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Hangzhou Lohand Biological Technology Co.,Ltd

Zhejiang, China

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OPERATION
1. Remove the protective cap. Do not be alarmed. If white crystals appear around the cap. This is normal with ORP electrodes and they dissolve when rinsed with water.
2. Turn the tester ON by pressing the 'ON/OFF ' button.
3. Immerse into solution up to the max immersion level.
4. Stir gently and wait until the display stabilizes.
5. After use, Turn the tester off by pressing the ON/OFF button, use the water clean the electrode and replace the protective cap.

Do not use distilled or deionized water for storage purposes. Large fluctuations in readings could be due to a lack of calibration, dry electrodes, or rundown Batteries.

Attention: during 2-3 weeks, put electrodes in 3mol/L KCL solution for 12 hours, to make sure the reading is accurate.

BATTERY REPLACEMENT When the battery symbol appears on the display, this indicates a low battery and only 1 hour of continuous use remains. though the unit may continue to function, the accuracy of the unit will be affected beyond the 1-hour twist to open the battery compartment lid. remove old batteries and replace them with fresh ones noting polarity as shown in the battery compartment.

ELECTRODE REPLACEMENT

1. Remove the protective cap.

2. Unscrew the plastic ring on the top of the electrode.

3. Pull out the electrode and replace it with a new one. make sure the gaskets are in place before screwing back the ring

WARRANTY

These instruments are warranted from all defects in material and manufacturing for a period of one year from the date of purchase.If during this period, the repair or the replacement of parts is required where the damage is not due to negligence or erroneous operation by user, please return the parts to either dealer or our offices, and the repair will be effected free of charge.

                                                            Measuring range
                                                            0.00~14.00pH
                                                        
                                                            Power
                                                            4×1.5v alkaline
                                                        
                                                            Weight
                                                            65g
                                                        
                                                            Product name
                                                            Pen-type Accuracy Hand PH Meter 981
                                                        
                                                            MODEL
                                                            PH-981
                                                        
                                                            Dimension
                                                            168×33×20mm
                                                        
                                                            Resolution
                                                            0.01pH
                                                        
                                                            Working temperature
                                                            0~60°C, R≤H95%
                                                        
                                                            Auto shut-off
                                                            Approx. 4 minutes
                                                        
                                                            Accuracy
                                                            ±0.05pH
                                                        
                                                            Calibration
                                                            1point  Power  4×1.5v alkaline