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9

PARAMETER SETTINGS

• Once the parameter code (and password

if needed) has been entered, the current
value of the selected parameter will be
displayed on the LCD together with the
parameter code. The parameter or a part of it will blink (e.g.
only the hour blinks if time has been selected).

• Enter the desired value using the arrow keys.

FNC

CFM

• If there is another part of the parameter to be set (e.g. minutes

for the time), press RANGE and then enter the new value using
the arrow keys.

• Press the ALT and CFM keys to confirm the value.
• If the entered value is not accepted, "WRONG" will be displayed for

a few seconds and then the meter will ask for a correct value.

• If the confirmed value is accepted, the meter will pass to the next

parameter (asking for the password if it is protected).

Note:

 If the ALT and FNC keys are pressed before parameter value

confirmation, the meter will not update the parameter and
after escaping will ask for a new setup code.

The following setup items table lists the items code, their valid values
and the factory settings (defaults):

Item

Description

Valid values

Default

tC

Temperature compensation Atc, ntc

Atc

ELC

Electrode condition

On, OFF

On

dUE

Calibration alarm time-out OFF, 1 to 15 days

OFF

AOF

Auto-Off

On, OFF

On

HOU

Current time

1

hh:mm

00:00

dAt

Current date

1

dd.mm

01.01

YEA

Current year

1

YYYY

1998

Id

Instrument ID code

0000 to 9999

0000

uEr

Firmware version

CHr

Battery level test

PAS

Password

2

0000 to 9999

0000

GLP

RANGE

The meter can recognize different batteries charge levels.
1.

Fully charged batteries

 - The backlight can be enabled.

2.

Weakening batteries

 - The backlight is automatically disabled

and it is not possible to enable it until new batteries are inserted.
The "Batt" indication appears when trying to enable backlight.
The meter can work for about 10 hours.

3.

Dead batteries

 - LCD shuts off. The instrument stops working to

avoid erroneous readings.

Battery replacement must only take
place in a non hazardous area using
1.5V alkaline AA type batteries.
In order to replace run down batteries,
simply remove the two screws on the
rear cover of the instrument and re-
place the four 1.5V AA batteries with
new ones, paying attention to the cor-
rect polarity.

BATTERY REPLACEMENT

At the end of the logged data the checksum (2 complement)
is sent.

Note

: The meter will send <CAN> if a corrupted or unknown

command is received.

These commands may be sent with either capital or small letters.
Invalid commands will be ignored. The characters sent by the pH
meter are always capital letters.

24

Содержание HI 98160

Страница 1: ...7851 9129 99 Greece Tel 210 823 5192 Fax 210 884 0210 Indonesia Tel 21 4584 2941 Fax 21 4584 2942 Japan Tel 03 3258 9565 Fax 03 3258 9567 Korea Tel 02 2278 5147 Fax 02 2264 1729 Malaysia Tel 603 5638 9940 Fax 603 5638 9829 Singapore Tel 6296 7118 Fax 6291 6906 SouthAfrica Tel 011 615 6076 Fax 011 615 8582 Taiwan Tel 886 2 2739 3014 Fax 886 2 2739 2983 Thailand Tel 662 619 0708 11 Fax 662 619 0061 ...

Страница 2: ...heendoftheelectrodeissensitivetoelectrostaticdischarges Avoid touchingthisglassbulbatalltime Duringcalibrationofinstruments ESDwriststraps shouldbeworntoavoidpossibledamagetotheelectrodebyelectrostaticdischarge Any variation introduced by the user to the supplied equipment may degrade the instrument sEMCperformance To avoid electrical shock do not use these instruments when voltages at the measure...

Страница 3: ...y interface provides clear messages regarding errors functions and more The GLP features provide a guarantee of data consistency Measurements can be performed with lab grade precision in the field as well as in the laboratory An alarm time out is available to alert the user if too much time has elapsed since the last pH calibration and that re calibration may be required PRELIMINARY EXAMINATION GE...

Страница 4: ... 01 Buffer Sachets 20 ml sachet 25 pcs HI 7001M pH 1 68 Buffer Solution 230 ml HI 7004L pH 4 01 Buffer Solution 500 ml HI 7006L pH 6 86 Buffer Solution 500 ml HI 7007L pH 7 01 Buffer Solution 500 ml HI 7009L pH 9 18 Buffer Solution 500 ml HI 7010L pH 10 01 Buffer Solution 500 ml ELECTRODE STORAGE CLEANING SOLUTIONS HI 70000P Electrode Cleaning Sachets 20 ml sachet 25 pcs HI 70300L Storage Solution...

Страница 5: ...na HI7074 Inorganic Cleaning Solution for 15 minutes Oil grease Rinse with Hanna HI7077 Oil and Fat Cleaning Solution IMPORTANT After performing any of the cleaning procedures rinse the electrode thoroughly with distilled water drain and refill the reference chamber with fresh electrolyte not necessary for GEL filled electrodes and soak the electrode in HI70300 Storage Solution for at least 1 hour...

Страница 6: ... the bulb and or junction are dry soak the electrode in HI70300 Storage Solution for at least one hour For refillable electrodes If the fill solution electrolyte is less than 1 cm below the fill hole add HI7082 3 5M KCl Electrolyte Solution for double junc tion or HI7071 3 5M KCl AgCl Electrolyte Solution for single junction electrodes For a faster response unscrew the fill hole screw during measu...

Страница 7: ...charge status will be displayed on the LCD for a few seconds The meter is now ready to operate To maximize battery life the meter is automatically switched off after 5 minutes of non use this feature is enabled by default and can be disabled through setup code AOF To reactivate the instrument press the ON OFF key Before proceeding with pH measurements follow the pH calibration procedure Note When ...

Страница 8: ...kaline Error 1 0 Mol L 1 Na 0 1 Mol L 1 Na Sodium Ion Correction for the Glass at 20 25 C Concentration pH Error 13 00 13 50 14 00 12 50 13 00 13 50 14 00 0 10 0 14 0 20 0 10 0 18 0 29 0 40 TEMPERATURE RESISTANCE CORRELATION FOR HANNA pH SENSITIVE GLASS The resistance of glass electrodes partially depends on the temperature The lower the temperature the higher the resistance It takes longer time f...

Страница 9: ...FF On dUE Calibration alarm time out OFF 1 to 15 days OFF AOF Auto Off On OFF On HOU Current time1 hh mm 00 00 dAt Current date1 dd mm 01 01 YEA Current year1 YYYY 1998 Id Instrument ID code 0000 to 9999 0000 uEr Firmware version CHr Battery level test PAS Password2 0000 to 9999 0000 GLP RANGE The meter can recognize different batteries charge levels 1 Fully charged batteries The backlight can be ...

Страница 10: ...ble disable this feature Item Id Setting the identification ID code When using several identical meters it may be useful to uniquely identify them by assigning an ID code to each meter Select item Id 23 SENDING COMMANDS FROM PC With any terminal programs it is possible to remotely control your pH meter Connect the meter to the PC through the HI920011 cable start the terminal program and set the co...

Страница 11: ...g reading means that the electrode is dead By pressing the RANGE key the meter will switch between pH and mV reading The mV scale is autoranging when the reading is outside 600mV the decimal point automatically disappears TAKING pH MEASUREMENTS ON OFF 22 LCD BACKLIGHT The LCD can be illuminated to allow the user to see the readings even in dark environments It can be enabled disabled through the L...

Страница 12: ...his function by selecting OFF The default setting is OFF When turned on the meter checks if the time out time has expired If the time has run out the message CAL duE scrolls across the LCD The CAL and DATE symbols will blink as a reminder Alarm time out is also signaled when viewing logged data through the Cal and Due message GLP AND RS232 All the GLP data can be retrieved if the electrode is conn...

Страница 13: ...ill be guided step by step with easy indications on the LCD during the calibration This will make the calibration a simple and error free procedure 20 GOOD LABORATORY PRACTICE GLP Note Press the ALT and DEL keys to escape without data deletion When viewing through the logged data the NUL message will be displayed when selecting a deleted sample To delete all data in memory Press the ALT and DEL ke...

Страница 14: ...be confirmed 8 Press the ALT and CFM keys to confirm the first buffer 9 If everything is satisfactory the LCD will display Stor and then the second buffer value expected two point calibration 19 year time pH reading means reading out of range or no probe was connected OrP means that an ORP electrode was connected mV reading means reading out of range temperature reading means reading out of range ...

Страница 15: ...and advises the user of abnormalities by old probe and dead probe indications in these cases repeat the calibra tion with fresh buffers If everything is satisfactory the meter is calibrated and it returns to normal operational mode 18 To store the current reading in memory press the LOG key while in measurement mode The LCD will display Stor along with the LOG indication and the sample number for ...

Страница 16: ... condition option ELC is disabled OFF from the setup menu the electrode performance will not be evaluated 17 TEMPERATURE CALIBRATION PROCEDURE for technical personnel only A two point calibration at 0 0 50 0 C has to be performed in order to store the new calibration data in memory 1 Turn off the meter 2 Turn on the meter with the LOG and CAL keys pressed to enter temperature calibration mode 3 Im...

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