Hanna-instruments mV 602 Series Manuel d'utilisateur

pH 502 & mV 602 SeriesPanel-mounted,Microprocessor-basedpH and ORP ControllersInstruction Manual

1918P.I.D. CONTROL MODEPID control is designed to eliminate the cycling associatedwith ON/OFF control in a rapid and steady way by means ofthe combina

2120In pH502 and mV602 the proportional action is set directlyas “Deviation” in pH and mV units respectively. Relation be-tween Deviation (D) and PB

2322FS•O = NC (Normally Closed)De-energized RelayCOMFS•C = NO (Normally Open)Energized RelayALARM RELAYThe alarm relay functions in the following mann

2524IDLE MODEDuring idle mode the device performs the same tasks aswhen it is in control mode except for the relays. The alarmrelay is activated (no a

2726To change the default values, the setup mode must be en-tered. Setup codes for changing the analog output minimumand maximum are 41 or 42, respect

2928RS 485 COMMUNICATIONpH502XY2, pH502XY3, mV602XY2 and mV602XY3 are pro-vided with an RS485 port.RS485 standard is a digital transmission method tha

3130As additional feature, the controller is alsoprovided with two pins (5V and 0V) in or-der to apply the Fail Safe Open Lineprotection method. To av

3332Note If the controller is not in control or idle mode and the tem-perature reading is requested through the TMR command,the controller answers wit

3534CALIBRATIONThe controller is factory calibrated for mV and temperatureinputs as well as for the analog outputs.The user should periodically calib

3736• Remove the protective cap from thepH electrode and immerse it into theselected buffer solution (e.g. pH 7.01)with the Potential Matching Pin an

32TABLE OF CONTENTSPRELIMINARY EXAMINATION . . . . . . . . . . . . . . . . . . 4GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . 4FUNCT

3938Three-point Calibration• Proceed as described above but donot quit calibration by pressing CAL.Note The meter will automatically skip the two buff

4140PH BUFFER SELECTIONA one point pH calibration at a value different from standardbuffer is possible by directly entering the desired calibrationval

4342mV INPUT CALIBRATIONThe pH/mV controller is factory calibrated for the mV andtemperature inputs. However, the user may also perform amV calibratio

4544• Use a Checktemp or a calibrated thermometer with a reso-lution of 0.1° as a reference thermometer.• Immerse the temperature probe inthe beaker w

4746• Press CFM to confirm the parameter that stops blinking onthe primary display.The secondary display shows the multi-meter or HI931002 input value

4948Note In any moment, by pressing LCD or CAL DATA the meter willreturn to the regular operating display.• Press  or  to view the time of last ca

5150STARTUPAt startup the firmware release code scrolls through the LCD;it is possible to escape from code scrolling pressing any key.During the autom

5352The error detection for dead loops is performed by watchdog(see below).You can use special setup codes, perform selftest proceduresfor LCD, keyboa

5554RELAYS AND LEDSRelays and LEDs selftests are executed as follows:First all of the relays and LEDs are switched off, then they areswitched on one a

5756ELECTRODE CONDITIONING AND MAINTENANCE* Only available with refillable electrodes. For industrial applications, gel-filled electrodes are preferab

54• Calibration: for pH 502 series at 1, 2 or 3 points with pH4.01, 7.01 and 10.01buffers; for mV 602 series at 1 or 2points at 0, 350 and 1900 mV.• T

5958For refillable electrodes**: Refill the electrode with fresh electrolyte (HI 7071 for singlejunction or HI 7082 for double junction electrodes). A

6160TAKING REDOX MEASUREMENTSRedox measurements allow the quantification of the oxidizingor reducing power of a solution, and are commonly expressedin

6362ACCESSORIESpH CALIBRATION SOLUTIONSHI 7004M pH 4.01 buffer solution, 230 mL bottleHI 7004L pH 4.01 buffer solution, 500 mL bottleHI 7004/L pH 4.01

6564PLATINUM ORP ELECTRODESHI 3090T Screw connector, external PG13.5 thread, double junction,Pt, glass body, polymer filledHI 3210T Screw connector, e

6766ORP ELECTRODES½‘’ thread, double PVDF junction, polymer filled, max operating pressure of 6 bar (87psi)PLATINUM ELECTRODESPart Code Matching Pi

6968WARRANTYAll Hanna Instruments meters are guaranteed for twoyears against defects in workmanship and materials whenused for their intended purpose

70HANNA LITERATUREHanna publishes a wide range of catalogs and handbooksfor an equally wide range of applications. The reference lit-erature currently

72MANPH502R1 08/05TECHNICAL SERVICE CONTACTSAustralia: Tel. (03) 9769.0666 • Fax (03) 9769.0699China: Tel. (10) 88570068 • Fax (10) 88570060Egypt

76MECHANICAL DIMENSIONSFRONT VIEW SIDE VIEWREAR PANEL1. 6-pin RS485 terminal (not for pH502XY1 and mV602XY1)2. Analog output (not for pH502XY2 and mV6

98INSTALLATIONpH 502 and mV 602offer a multitude ofpossibilities, from singleand dual setpoints toON/OFF or PID dos-age, isolated outputswith user-sel

1110SETUP MODEpH 502 and mV 602 offer a multitude of possibilities fromON/OFF or PID dosage to analog recorder output and fromalarm to selftest featur

1312• After confirmation, the selected param-eter is displayed. The user can scrollthrough the parameters by pressing CFM.In order to directly set ano

1514Code Valid Values Default PW60 Current day 01 to 31 from RTC no61 Current month 01 to 12 from RTC no62 Current year 1997 to 9999 from RTC no63 Cur

1716CONTROL MODEThe control mode is the normal operational mode for thesemeters. During control mode pH 502 and mV 602 fulfill thefollowing main tasks