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WARRANTY

All Hanna Instruments

 meters are guaranteed for two years 

against defects in

workmanship and materials when used for their intended purpose and maintained
according to instructions.

Electrodes and probes are guaranteed for a period of six months

.

This warranty is limited to repair or replacement free of charge.
Damage due to accident, misuse, tampering or lack of prescribed maintenance
are not covered.
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 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.

All rights are reserved. Reproduction in whole or in part is prohibited without the
written consent of the copyright owner.

Hanna Instruments reserves the right to modify the design, construction and

appearance of its products without advance notice.

Extension cables for screw-type electrodes (screw to BNC adapter)

HI 7855/1

Extension cable 1 m (3.3') long

HI 7855/3

Extension cable 3 m (9.9') long

OTHER ACCESSORIES

HI 710005

Voltage adapter, 115 Vac / 12 Vdc, US plug

HI 710006

Voltage adapter, 230 Vac / 12 Vdc, European plug

HI 710012

Voltage adapter, 230 Vac / 12 Vdc, UK plug

HI 710013

Voltage adapter, 230 Vac / 12 Vdc, S.Africa plug

HI 710014

Voltage adapter, 230 Vac / 12 Vdc, Australian plug

HI 76404

Electrode holder

HI 7669/2W

Temperature probe with 1 m (3.3') cable

HI 8427

pH/ORP electrode simulator

HI 931001

pH/ORP electrode simulator with LCD

HI 98501

ChecktempC 

pocket-size thermometer (range: -50.0

to 150.0°C)

CONNECT TO
SCREW TYPE

ELECTRODES

CONNECT TO THE

BNC SOCKET

OF THE METER

HI 7855 SERIES CABLE CONNECTORS

CONNECTOR AND 3.0 mm (0.12") CABLE WITH BNC

Recommendations for Users

Before using this product, make sure that it is entirely suitable for the environment in which it is
used. Operation of this instrument in residential areas could cause unacceptable interferences to radio
and TV equipment, requiring the operator to take all necessary steps to correct interferences.
The glass bulb 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 electrode by electrostatic discharges.
Any variation introduced by the user to the supplied equipment may degrade the instrument's EMC
performance.
To avoid electrical shock, do not use this instrument when voltages at the measurement surface exceed
24 Vac or 60 Vdc.
To avoid damages or burns, do not perform any measurement in microwave ovens.

Содержание pH 211R

Страница 1: ...Instruction Manual pH211R Microprocessor based Bench pH mV C Meter with Analog Output w w w h a n n a i n s t c o m ...

Страница 2: ...emperature values simultaneously The user is guided through the calibration process with simple instructions on the display The meter also features 0 to 5 V analog output TABLE OF CONTENTS PRELIMINARY EXAMINATION 3 GENERAL DESCRIPTION 3 FUNCTIONAL DESCRIPTION 4 SPECIFICATIONS 5 OPERATIONAL GUIDE 6 pH CALIBRATION 9 ELECTRODE CONDITIONING MAINTENANCE 12 TEMPERATURE RESISTANCE CORRELATION FOR pH SENS...

Страница 3: ...utput connector 16 Negative analog output connector SPECIFICATIONS Range 2 00 to 16 00 pH 399 9 2000 mV 9 9 to 120 0 C Resolution 0 01 pH 0 1 1 mV 0 1 C Accuracy 20 C 68 F 0 01 pH 0 2 1 mV 0 5 C Typical EMC Deviation 0 03 pH 2 mV 0 3 C pH Calibration Automatic 1 or 2 point with 5 memorized buffers pH 4 01 6 86 7 01 9 18 10 01 Temperature Compensation Automatic with HI 7669 2W probe or manual 9 9 t...

Страница 4: ... the oxidizing or reducing power of the sample tested To correctly perform a redox measurement the surface of the ORP electrode must be clean and smooth OPERATIONAL GUIDE Power Connection Plug the 12 Vdc adapter into the power supply socket Note Make sure the mains line is protected by a fuse Electrode and Probe Connections Connect the BNC of the pH or ORP electrode to the BNC socket on the rear p...

Страница 5: ...2 5 V 5 V RESET The RESET button 14 on page 4 should only be used when the instrument displays erroneous messages due to strong electrical inter ference or when the power supply was disconnected before switching the meter off After pressing RESET always recelibrate the unit before proceeding pH CALIBRATION Frequent calibration is recommended Moreover the instrument should be re calibrated for pH a...

Страница 6: ... the electrode by following the maintenance procedure see Elec trode Maintenance section If necessary change buffer or electrode Note Press RANGE to display the temperature reading on the LCD during calibration One Point Calibration Immerse pH electrode and temperature probe approximately 4 cm 1 into any of the available buffer solutions pH 4 01 6 86 7 01 9 18 or 10 01 and stir gently The temperat...

Страница 7: ...DISTILLED OR DEIONIZED WATER PERIODIC MAINTENANCE Inspect the electrode and the cable The cable used for connection to the meter must be intact and there must be no points of broken insulation on the cable or cracks on the electrode stem or bulb Connectors must be perfectly clean and dry If any scratches or cracks are present replace the electrode Rinse off any salt deposits with water For refilla...

Страница 8: ...4 inorganic cleaning solution for 15 minutes Oil grease Rinse with HI 7077 Oil Fat cleaning solution IMPORTANT After performing any of the cleaning procedures rinse the electrode thoroughly with distilled water refill the reference cham ber with fresh electrolyte not necessary for gel filled electrodes and soak the electrode in HI 70300 storage solution for at least 1 hour before taking measuremen...

Страница 9: ...bottle 4 x 50 mL HI 7082 3 5M KCl electrolyte solution 4 x 50 mL bottle for double junction electrodes HI 8082 3 5M KCl electrolyte solution in FDA bottle 4 x 50 mL for double junction electrodes TROUBLESHOOTING GUIDE Symptoms Problem Solution The meter is slow in responding or gives faulty readings The meter does not ac cept the 2nd buffer solution for calibration The reading drifts Display shows...

Страница 10: ...m DIA 0 29 S VERSION HI 1331 ORP PRETREATMENT SOLUTIONS HI 7091L Reducing pretreatment solution 500 mL bottle HI 7092L Oxidizing pretreatment solution 500 mL bottle pH ELECTRODES All electrode part numbers ending in B are supplied with BNC connector and 1 m 3 3 cable HI 1043B Glass body double junction refillable combination pH electrode Use strong acid alkali HI 1053B Glass body triple ceramic co...

Страница 11: ... 5 HI 4430 S VERSION FC 100B PVDF body double junction refillable combination pH electrode Use general purpose for food industry FC 200B PVDF body open junction conic Viscolene non refillable combination pH electrode Use meat cheese FC 210B Glass body double junction conic Viscolene non refillable combina tion pH electrode Use milk yogurt FC 220B Glass body triple ceramic single junction refillabl...

Страница 12: ...able 3 m 9 9 long OTHER ACCESSORIES HI 710005 Voltage adapter 115 Vac 12 Vdc US plug HI 710006 Voltage adapter 230 Vac 12 Vdc European plug HI 710012 Voltage adapter 230 Vac 12 Vdc UK plug HI 710013 Voltage adapter 230 Vac 12 Vdc S Africa plug HI 710014 Voltage adapter 230 Vac 12 Vdc Australian plug HI 76404 Electrode holder HI 7669 2W Temperature probe with 1 m 3 3 cable HI 8427 pH ORP electrode ...

Страница 13: ...941 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 66 2619 0708 Fax 66 2619 0061 UnitedKingdom Tel 01525 850 855 Fax 01525 853 668 USA Tel 401 765 7500 Fax 401 7...

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