HI98107 & HI98108 pHep Line of Handheld - Waterproof pH Meters
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- เผยแพร่เมื่อ 17 ก.ค. 2024
- Hanna Instruments Waterproof Handheld pH Meters HI98107 and HI98108
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In 1986 The pHep family of pocket meters revolutionized pH measurement by providing millions of users access to an affordable and easy to use pH meter. In this video we will introduce you to our latest generation of testers.
Our two most popular meters in the pHep family have been redesigned. They are:
HI98107
HI98108
Both meters operate in the same fashion with the only difference being the resolution,
The pHep meters are designed with accuracy and simplicity in mind. Starting with a slim ergonomic design that fits comfortably in your hand and a high contrast large display that is easy to read.
The daily operation of the meter has been simplified to just two buttons. One is for turning the meter on and off while the other is used to enter the calibration mode.
There is a third button in the battery compartment that allows the user to choose the displayed temperature unit and adjust the automatic shut-off time.
Looking at the sensor portion of the meter the pH electrode, temperature probe and cloth reference junction can be seen.
The cloth reference junction is extractable when there is a stability issue with the readings the junction is pulled 1/8” from the meter to expose a fresh surface. The extractable cloth junction offers a great benefit in extending the life of the pH electrode.
The exposed temperature probe of the pHeps provide for a rapid temperature measurement in order to compensate for any temperature variations in the calibration buffers or samples being measured. This is absolutely necessary to achieve a high accuracy reading especially with samples at the extremes of temperature and pH.
To operate the meters simply press the left on/off button to turn on. All the LCD segments are displayed then the battery % level is displayed, notifying the user of the remaining battery life. In operation mode the following can be seen:
Instability indicator that disappears when a steady reading is obtained
pH reading
Temperature readout
And if calibrated, calibration tags showing which pH points have been calibrated
To calibrate the meter press the ‘CAL’ button while the meter is on to enter calibration mode.
For two-point calibration, the meter will prompt for the pH 7.01 buffer. Once the buffer is automatically recognized the buffer will be updated and REC will be displayed and the meter will then display pH 4.01
For single-point calibration, press CAL Key to exit SAVE is displayed and the meter returns to measurement mode.
If needed, the default settings for temperature unit displayed and automatic shut off can be adjusted.
With the meter turned on and the battery cover removed a microswitch inside the battery compartment is pressed to enter the setup mode.
The first setting displayed is the selection for temperature unit.
At default the TEMP measurement unit is °C. Pressing the CAL button changes the displayed unit to oF. Pressing the CAL button again changes it back to °C.
Pressing the ON/ OFF button moves to the next setup option, which is for automatic shut-off. The default setting is for 8 minutes. Pressing the CAL button cycles through to 60 minutes then disabled and finally back to 8 minutes.
Pressing the ON/ OFF button again exits the setup mode and the meter is back in measurement mode.
We hope you have enjoyed this product video and for more information please contact us at 877MYHANNA or visit us at hannainst.com. - วิทยาศาสตร์และเทคโนโลยี
I pulled the junction out about an 8th of an inch and the plastic /rubber stopper that holds it in place got pushed all the way inside,I am unable to get it out so I left the junction out about an 8th as recommended but had to use a modified pencil eraser to hold the junction strip in place,,I don't know how it will work until I get it re-calibrated,any thoughts on the pencil eraser effecting the way it will work or not?
Do the testers need to be wet stored ? If yes , in what do you store them in ?
Hi, recently bought this 98108 meter. The date of control and packing is 2018.03.13. What is expiry date after control and packing for this unit?
I am asking how to store that probe in cap coz as for me the solution pours out if i close
Do yo know why the on/off button can't work? please tell me how to fix it
Tried to pull the cloth, it went all out... What should i do?? They dint say that the rubber thats holds it easily pulled out... I soak the cloth and ph tester in ro water... Then the reading starts to drift upward, what should i do?
PLEASE I CANT FIND ANYWHERE HOW TO REPLACE THE BATTERY OF THE HI98107 METER!!!!!!
When the cloth has been used up, does this mean I have to buy a brand new HI98107 / 8?
Once the cloth junction is gone, the tester will no longer give accurate readings. With the length of these junctions, they will last a very long time when cleaned and stored properly. It's very rare to have to pull the junction, however. Usually, sitting in a cleaning solution for 1-2 hours will dissolve any residue impeding results. Remember to always let a probe sit in storage solution for 1-2 hours to rehydrate after being cleaned. Happy testing!
I have problem with this model. I usually use asidic calibration (pH 7.01 & 4.01), one day when i do calibration as usual, when still immeraing in pH 7.01 suddenly it ask to pH 10.01 and read the 7.01 buffer solution as pH 10.01.
Then it read all the sample with high pH result.
How to switch back the cal mode to 7.01 & 4.01??? Please Help
Did you figure it out ? It’s happing to mine
Can we use this ph meter to determine the pH of aqueous chemicals solutions like EDTA solution or Sodium hydroxide solution?
Please email this question to our Tech team at tech@hannainst.com
Price pls?
What is the difference between these two? Can they work in Salt Water aquarium?
Hey there! The difference between these testers are their resolution. Depending on the needs of your accuracy, these give you the choice of reading to the tenth or the hundredth.
These also DO work with saltwater aquariums. Check out our Reef Kit! hannainst.com/reef-professional-kit.html
Hanna Instruments, Inc. thanks
Hanna Instruments, Inc. is the 107 to the tenth ad the 108 to the hundredth
Thats right!