User manual HANNA INSTRUMENTS HI 8427
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Manual abstract: user guide HANNA INSTRUMENTS HI 8427
Detailed instructions for use are in the User's Guide.
[. . . ] 6 mV (ORP) Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 High Impedance Calibration . . . . . . . . . . . . . . . . . . . . 10 pH Values at Various Temperature . . . . . . . . . . 11 Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Make sure that the LOW BATTERY LED is not lit. If it is lit, change the battery of the simulator before performing the calibration. Verify that the pH meter displays the pH 7 message. If not, adjust the pH meter until the correct reading pH 7 is displayed (refer to the pH meter instruction manual). Select any other pH value on the simulator and set the °C knob to the desired working temperature (e. g. pH 4 at 30°C).
pH7
HI 931001: · Connect the simulator to the pH meter using the HI 7858/1 cable provided. · Manually set the temperature compensation of your meter to 25°C.
· Switch the simulator on and select the pH mode by pressing the RANGE key.
pH
pH
HI 8424
microcomputer pHmeter
ON OFF
HI 931001
pH/mV Calibrator
SETTING
ON OFF
RANGE
pH
HI 8427 pH/mV CALIBRATOR
·
0
10 20 30
Make sure that the two additional decimal points are not displayed. If they are displayed, change the battery of the simulator before performing the calibration. Turn the Coarse and Fine knob to set any desired pH value and make sure that the pH meter you are checking reflects the correct result (e. g. 7. 01 pH).
·
50 40 °C
·
·
If your pH meter has a temperature probe connected to it, set the °C knob to the measured temperature displayed by your pH meter. If your meter is manually compensated for temperature, adjust the temperature settings for both the pH meter and the simulator to the same temperature. Verify that the pH meter displays the correct pH value compensated at the
6
·
If not, adjust the pH meter until the correct reading is displayed (refer to the pH meter instruction manual).
pH
pH
HI 8424
microcomputer pHmeter
ON OFF
HI 931001
pH/mV Calibrator
SETTING
7
mV (ORP) CALIBRATION
·
HI 8427: · Connect the simulator to the mV (ORP) meter using the HI 7858/1 cable provided.
·
·
pH
HI 8427 pH/mV CALIBRATOR
Switch the mV meter on and select the desired mV value on the simulator. Make sure that the LOW BATTERY LED is not lit. If it is lit, change the bat-350 tery of the simulator bemV fore performing the calibration. · If the meter is not displaying the correct mV value, adjust the meter until it displays the correct mV (refer to the mV meter instructions manual). Note: The °C knob is not effective during mV calibration.
Make sure that the the two additional decimal points are not displayed. If they are displayed, change the battery of the simulator before performing the calibration. Turn the Coarse or Fine knob to any desired value and make sure that the mV meter you are checking reflects the correct result.
·
If not, adjust the mV meter until the correct reading is displayed (refer to the mV meter instruction manual).
mV
mV
HI 8424
microcomputer pHmeter
ON OFF
HI 931001
pH/mV Calibrator
SETTING
Note: Temperature compensation does not apply here.
HI 931001: · Connect the simulator to the mV (ORP) meter using the HI 7858/1 cable provided.
pH
pH
HI 8424
microcomputer pHmeter
ON OFF
HI 931001
pH/mV Calibrator
SETTING
ON
· Switch the simulator on and select the mV mode by pressing the RANGE key.
OFF
RANGE
8
9
CABLE HIGH IMPEDANCE TEST
pH VALUES AT VARIOUS TEMPERATURE
HI 8427 only:
Temperature has an effect on pH. [. . . ] If under warranty, report the model number, date of purchase, serial number and the nature of the failure. If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first obtain a Returned Goods Authorization number from the Customer Service department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection. [. . . ]
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