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Hanna Instruments HI 253, Инструкция по эксплуатации, Страница: 28 / 44

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28

RELATIVE  mV CALIBRATION

• Press 

CAL

 when the instrument is in RELATIVE mV measurement mode.

The “mV” and “ ” tags will blink. Absolute mV is displayed on the
primary LCD and “AbS” message is displayed on the secondary LCD.

• When the absolute reading is stable and in measurement range, the

instrument asks for confirmation.

• If the reading is out of range, “WRONG” tag will be displayed.
• Press 

CFM

 to confirm the absolute value. The instrument will display 0.0

mV on the primary LCD and “rEL” message on the secondary LCD. In this
moment the relative mV offset is equal to absolute mV reading.

• Use the 

ARROW

 keys if you want to change the displayed relative mV value.

• Press 

CFM

 to confirm the relative mV value. The relative mV offset is

displayed on the primary LCD and “OFF” message on the secondary LCD for
a few seconds. The instrument returns to measurement mode.

Note:

The relative mV value can be changed only inside the relative mV offset
window (± 2000 mV).

Note: •

If the reading is not close to the selected calibration point,

“WRONG” tag will blink. Verify calibration condition or contact
your vendor if you can not calibrate.

•

Press 

CAL 

in any moment of the calibration process. The instrument

will return to measurement mode. If calibration process is stopped
after 600 mV is confirmed, the 600 mV range is calibrated and
calibration parameters are memorized.

Содержание HI 253

Страница 1: ...SET C C RANGE GLP CFM CAL pH ORP Ion Meter HI 253 Confirm Calibration in selected pH Buffer CFM Select pH Buffer Start Exit Calibration CAL Select pH ORP mV Ion Scroll Log Data Rel RANGE GLP Show GLP...

Страница 2: ...scribed maintenance isnotcovered If service is required contact the dealer from whom you purchased the instrument If under warranty report the model number date of purchase serial number and the natur...

Страница 3: ...ems must be returned in the original packing with the supplied accessories The HANNA HI 253 is a logging microprocessor based pH mV Ion and temperature bench meter Relative mV feature is also provided...

Страница 4: ...ata 10 ON OFF switch 11 Powersupplysocket 12 BNCelectrodeconnector 13 Electrodereferencesocket 14 Temperature probe socket 15 RS232serialcommunicationconnector FUNCTIONAL DESCRIPTION Front Panel Prima...

Страница 5: ...0 m p p 9 9 9 9 o t 0 1 1 0 0 m p p 9 9 9 9 o t 0 0 1 1 0 m p p 9 9 9 9 1 o t 0 0 0 1 1 C 1 0 Y C A R U C C A F 8 6 C 0 2 H p 1 0 H p 1 0 0 H p 2 0 0 0 V m 9 9 9 6 V m 2 0 V m 0 0 0 2 V m 1 s f 5 0 C...

Страница 6: ...e d o r t c e l E H p B 1 3 1 1 I H e b o r p e r u t a r e p m e T W 2 9 6 6 7 I H e c n a d e p m i t u p n I 0 1 2 1 m h o y l p p u s r e w o P r e t p a d a C D V 2 1 s n o i s n e m i D 9 2 x 1...

Страница 7: ...urements and automatic temperature compensation connect the temperature probe to the appropriate socket INSTRUMENT START UP Turntheinstrumentonbypressingthe ON OFFswitch All LCD tags are displayed and...

Страница 8: ...ow the default temperature of 25 C or the last temperature reading with the C tag blinking The temperature can now be adjusted with the ARROW keys from 9 9 Cto120 0 C mV ORP MEASUREMENTS An optional O...

Страница 9: ...e relative mV calibration ION MEASUREMENTS Press RANGE to enter ppm measurement mode Submerge the tip of the ISE electrode 4 cm 1 into the sample to be tested and allow a few seconds for the reading t...

Страница 10: ...are measuring in the acidic range use pH 7 01 or 6 86 as first buffer and pH 4 01 as second buffer If you are measuring in the alkaline range use pH 7 01 or 6 86 as first buffer and pH 10 01 or 9 18...

Страница 11: ...will blink on the LCD until the reading is stable Whenthereadingisstableandclosetotheselectedbuffer the READY tagwillbedisplayedandthe CFM tagwillblink Press CFM to confirm calibration The calibrated...

Страница 12: ...ng is out of the defined temperature range of the buffer Calibration cannot be confirmed in this situation Press RANGE to display the temperature reading on the LCD during calibration TWO POINT CALIBR...

Страница 13: ...akers for each buffer solution One for rinsing the electrode and one for calibration PROCEDURE One or two point calibrationis available using five memorizedbuffers 0 1 1 10 100 1000 ppm Select Ion mea...

Страница 14: ...e new slope is out of the slope window WRONG BUF and WRONG tagswillblinkalternately Inthiscase checkifthe correct buffer has been used or refresh the electrode by following the Cleaning Procedure If n...

Страница 15: ...forethe next required calibration This value can be set from 1 to 7 days The default setting is OFF disabled Theinstrumentchecksifthetime outtimehasexpired Ifthetimeelapsed the CAL INTV tags will blin...

Страница 16: ...he OLd message displayed beside the pH value means that this buffer was not used during last calibration Press and hold down SET CLR if you want to see calibration date or time if old calibration was...

Страница 17: ...ion To view Ion calibration data press GLP when the instrument is in Ion measurement mode The instrument will display the time hh mm of the last calibration Press the ARROW keys to view the next logge...

Страница 18: ...e less than 6 memory locations remaining the record number and Lo message will blink to alert the user LOG LOG CAL The second mV value The Ion calibration slope mV decade The instrument ID Note Ifaone...

Страница 19: ...f no data were logged the instrument displays Otherwise the instrument will display the pH relative mV or ppm value on the primary LCD and the last stored record number on the secondary LCD along with...

Страница 20: ...ith DATE tag The calibration offset on the primary LCD and OFS message on the secondaryLCD Note If in Ion RECALL mode the instrument will display message on the primary LCD The calibration slope for p...

Страница 21: ...will display ALL message Pressing LOG again the secondary LCD will display the record number Press SET CLR to delete the selected or all records If del ALL option was selected all records are deleted...

Страница 22: ...parameter value The selected parameter will start blinking Press RANGE to toggle between displayed parameters Press the ARROW keys to increase or decrease the displayed value Press CFM to save the mo...

Страница 23: ...ss the ARROW keys to change the day Press CFM to save the modified value Press CAL to escape without saving pH RESOLUTION SET Press CAL when the pH range is displayed The pH range 0 1 0 01 or 0 001 wi...

Страница 24: ...to save the modified beep status Press CAL to escape without saving BAUD RATE SET Press CAL when the baud rate is displayed The baud rate 600 1200 2400 4800 or 9600 will start blinking Press the ARRO...

Страница 25: ...ess CAL when the calibration time out is displayed Calibration time out OFF or 1 to 7 days will start blinking Press the ARROW keys to change the calibration time out value Press CFM to save the modif...

Страница 26: ...re of around 50 C Place insulation material around the vessels to minimize temperature changes Use a calibrated thermometer with a resolution of 0 1 C as a reference thermometer With the instrument of...

Страница 27: ...ce Center or follow the instructions below A two or three point calibration can be performed at 0 0 mV 600 0 mV and 1800 0 mV AttachtotheBNCconnectoramVsimulatorwithanaccuracyof 0 1mV With the instrum...

Страница 28: ...absolute mV reading UsetheARROWkeysifyouwanttochangethedisplayedrelativemVvalue Press CFM to confirm the relative mV value The relative mV offset is displayed on the primary LCD and OFF message on the...

Страница 29: ...nts HI 92000 software pleaseseethefollowinginstructions SENDING COMMANDS FROM PC It is also possible to remotely control the instrument with any terminal program Use HI 920010 cable to connect the ins...

Страница 30: ...in Ion range RAS Causes the instrument to send a complete set of readings in according with the current range pH mV and temperature reading on pH range mV and temperature reading on mV range Rel mV ab...

Страница 31: ...4 6 8 6 1 0 7 8 1 9 1 0 0 1 0 2 3 1 0 4 8 9 6 3 1 7 6 4 9 2 3 0 1 5 1 4 0 0 4 5 9 6 0 1 7 9 3 9 4 2 0 1 0 1 0 5 0 0 4 2 9 6 7 0 7 3 3 9 8 1 0 1 5 1 9 5 0 0 4 0 9 6 4 0 7 7 2 9 2 1 0 1 0 2 8 6 0 0 4 8...

Страница 32: ...rinsed with water During transport tiny bubbles of air may form inside the glass bulb affecting proper functioning of the electrode These bubbles can be removed by shaking down the electrode as you w...

Страница 33: ...glass bulb and the junction should be kept moist and not allowed to dry out Replace the solution in the protective cap with a few drops of HI 70300 or HI 80300 Storage Solution or in its absence Filli...

Страница 34: ...Inorganic Cleaning Solution for 15 minutes Oil grease Rinse with Hanna HI 7077 or HI 8077 Oil and Fat Cleaning Solution IMPORTANT After performing any of the cleaning procedures rinse the electrode t...

Страница 35: ...y a l p s i d e h t f I r o 0 0 2 d n a H p g n i k n i l b 0 0 6 1 H p e h t n i e g n a r f o t u O e l a c s r e t e m e h t e t a r b i l a c e R a H p e h t e r u s e k a M b d e i f i c e p s e...

Страница 36: ...0 29 0 40 The resistance of glass electrodes partially depends on the temperature The lower the temperature the higher the resistance It takes more time for the reading to stabilize if the resistance...

Страница 37: ...IONS HI 70300L Storage Solution 460 mL HI 80300L Storage Solution in FDA approved bottle 460 mL ELECTRODE CLEANINGSOLUTIONS HI 70000P Electrode Rinse Sachets 20 mL 25 pcs HI 7061L General Cleaning Sol...

Страница 38: ...alkali HI 1053B Glass body tripleceramic conicshape refillable combinationpHelectrode Use emulsions HI 1083B Glass body micro Viscolene non refillable combination pHelectrode Use biotechnology micro t...

Страница 39: ...e Use general field HI 2031B Glass body semimicro conic refillable combination pHelectrode Use semisolidproducts HI 1332B Plastic body Ultem doublejunction refillable combinationpHelectrode Use genera...

Страница 40: ...od industry FC 200B Plastic body Kynar open junction conic Viscolene non refillable combination pH electrode Use meat cheese FC 210B Glass body doublejunction conic Viscolene non refillable combinatio...

Страница 41: ...ation platinum ORP electrode Use titration HI 3230B Plastic body Ultem gel filled combination platinum ORP electrode Use general purpose HI 4430B Plastic body Ultem gel filled combination gold ORPelec...

Страница 42: ...VDC South Africa plug HI 710014 Voltage adapter from 230 VAC to 12 VDC Australiaplug HI 76405 Electrodeholder HI 8427 pH and ORP electrode simulator with 1 m 3 3 coaxial cable ending in female BNC co...

Страница 43: ...at the end of the pH electrode is sensitive to electrostatic discharges Avoid touching this glass bulb at all times During operation ESD wrist straps should be worn to avoid possible damage to the el...

Страница 44: ...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 2 273...

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