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Hanna Instruments mV 602 Series, Инструкция по эксплуатации

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Hanna Instruments mV 602 Series Скачать руководство пользователя страница 13

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IDLE MODE

During idle mode the device performs the same tasks as
when it is in control mode except for the relays. The alarm
relay is activated (no alarm condition), the acid and base
relays are not activated while the analog output remains
activated.

When the instrument is in idle mode the red and green
status LEDs are on.

Idle mode is useful to disable control actions when the
external devices are not installed or when the user detects
unusual circumstances.

Control actions are stopped as soon
as the user presses SETUP and en-
ters the password.

In order to reactivate the control mode, use code 02 of
setup (see “Setup” section). Otherwise, the meter remains
in idle mode.

This is an important feature since with most meters the alarm
terminals close only when an abnormal situation arises, how-
ever, due to line interruption, no alarm
is sounded, causing extensive damage.
On the other hand, software is em-
ployed to set off the alarm in abnormal
circumstances, for example, if the dos-
ing terminals are closed for too long a
period. In both cases, the red LED’s will
also provide a visual warning signal.

The Fail Safe mode is accomplished by connecting the exter-
nal alarm circuit between the FS•C (Normally Open) and
the COM terminals. This way, an alarm will warn the user
when pH goes over the alarm thresholds, the power breaks
down and in case of a broken wire between the process meter
and the external alarm circuit.

Note

In order to have the Fail Safe feature activated, an external
power supply has to be connected to the alarm device.

CONTROL THROUGH ANALOG OUTPUT

Models  pH5025YZ and mV6025YZ have a proportional out-
put signal (selectable among 0-1 mA, 0-20 mA, 4-20 mA,
0-5 Vdc, 1-5 Vdc and 0-10 Vdc) at the analog output termi-
nals. With this output, the actual output level amplitude is
varied, rather than the proportion of ON and OFF times
(duty cycle control). A device with analog input (e.g. a pump
with a 4-20 mA input) can be connected to these terminals.

Note

Models with this feature don’t have the output relay for a duty
cycle control.

Содержание mV 602 Series

Страница 1: ...pH 502 mV 602 Series Panel mounted Microprocessor based pH and ORP Controllers Instruction Manual...

Страница 2: ...ments All rights are reserved Reproduction in whole or in part is prohibited without the written consent of the copyright owner Dear Customer Thank you for choosing a Hanna Product Please read this in...

Страница 3: ...re that no damage has occurred during shipping If there is any noticeable damage notify your Dealer or the nearest Hanna Customer Service Center immediately Note Save all packing materials until you a...

Страница 4: ...d reverts back to normal mode in idle or control phases with the measure ment on the display In pH 502 series during pH calibration alternately displays pH buffer value or current temperature 3 SETUP...

Страница 5: ...alEMCDeviation 0 2 pH pH 502 series 10 mV mV 602 series 0 5 C Calibration pH automatic 1 2 or 3 point at pH 4 01 7 01 10 01 ORP automatic 2 point at 0 and 350 or 1900 mV Temperature Compensation pH 50...

Страница 6: ...eys PowerSupply Connecta3 wirepowercable to the terminal strip while paying attention to the correct line L earth PE and neu tral N terminal connections Power 115 Vac 100 mA 230 Vac 50 mA Line Contact...

Страница 7: ...no H1 0 to 4000 mV 50 mV 14 Relay 1 deviation 0 50 to 14 00 pH 1 pH no D1 25 to 4000 mV 50 mV 15 Relay 1 reset time 0 1 to 999 9 minutes 999 9mins no 16 Relay 1 rate time 0 0 to 999 9 minutes 0 0 mins...

Страница 8: ...n S1 H1 S2 H2 S2 LA HA S1 If M1 2 and M2 1 then S2 H2 S1 H1 S1 LA HA S2 Code Valid Values Default PW 22 Relay 2 setpoint S2 0 00 to 14 00 pH 6 00 pH no 2000 to 2000 mV 500 mV 23 Relay2hysteresis H2 0...

Страница 9: ...hen S1 S2 H2 S2 LA HA S1 D1 If M1 2 and M2 3 then S1 H1 S2 S1 LA HA S2 D2 If M1 4 and M2 1 then S1 S2 H2 S1 D1 LA HA S2 If M1 1 and M2 4 then S1 H1 S2 S2 D2 LA HA S1 If M1 3 and M2 4 then S1 S2 S2 D2...

Страница 10: ...oint Hysteresis Setpoint t0 t0 Tc t0 2Tc t0 3Tc An upper boundary is imposed for acid base dosage time when relays are energized continuously i e when relay works in ON OFF mode or in PID mode but in...

Страница 11: ...S2 the deviation D1 or D2 the reset time the rate time and the proportional control mode period Tc from 1 to 30 minutes for models with electromechanical relays and from 5 seconds to 30 minutes for mo...

Страница 12: ...arm function operates in a Normally Closed state and hence alarm is triggered if the wires are tripped or when the power is down 1 Starting from a solution with a pH or mV value different from the dos...

Страница 13: ...off the alarm in abnormal circumstances for example if the dos ing terminals are closed for too long a period In both cases the red LED s will also provide a visual warning signal The Fail Safe mode...

Страница 14: ...e The type voltage or current and the range of the output analog signal is selectable through the jumpers on the power board Configurations of the switch are as follows Output Switch 1 Switch 2 Switch...

Страница 15: ...on the disk s label Contact your Hanna Dealer to request a copy SPECIFICATIONS The RS485 standard is implemented in pH502 mV602 with the following characteristics Data rate up to 9600 bps Communicati...

Страница 16: ...characters of a command It is possible to send commands to change the controller settings or to simply ask information on the controller status Following is the complete list of commands available Com...

Страница 17: ...nnot answer the request e g the password was not sent the controller is in setup mode the setup item is not available in that model etc Note The controller answers to the GET command with the same dat...

Страница 18: ...he calibration procedure Initial Preparation Pour small quantities of pH 7 01 HI 7007 and pH 4 01 HI 7004 and or pH 10 01 HI 7010 solutions into indi vidual beakers If possible use plastic beakers to...

Страница 19: ...ue For best accuracy however it is recommended that a two point calibration is performed HI 7007 CALIBRATION HI 7007 RINSE For accurate calibration use two beakers for each buffer solution the first o...

Страница 20: ...ration Two point Calibration Proceed as described above for one point cali bration usingpH 7 01asthefirstpoint butdo notquitcalibrationbypressingCALattheend Note The meter will automatically skip the...

Страница 21: ...on is restarted with no changes to calibration data CALIBRATION WITH MANUAL TEMPERATURE COMPENSATION Enter the calibration procedure and press LCD to display the temperature on the secondary LCD Unplu...

Страница 22: ...r to select code 0 for mV calibration and press CFM to enter CAL will blink on the LCD until the meter confirms a steady reading OFFSET AND SLOPE DIRECT SELECTION Whenever the pH electrode offset and...

Страница 23: ...zed at a point near the first calibration point CAL will stop blinking and an intermittent CFM icon will prompt the user to confirm the first calibration If the display stabilizes at a value significa...

Страница 24: ...5Vdc 3 0 Vdc 5 Vdc 1 5Vdc 4 1 Vdc 5 Vdc 0 10Vdc 5 0 Vdc 10 Vdc Immerse the temperature probe in the second beaker as near to the Checktemp as possible and repeat the above procedure Calibration proced...

Страница 25: ...theEEPROM Date Time Offset in mV for pH 502 only Up to two slopes for pH 502 only Up to three buffers While displaying this data the pH controller remains in con trol mode The procedure below indicate...

Страница 26: ...ta is composed of setup data and calibration data As for the setup data the calibration data is assigned default values when an EEPROM reset occurs An un calibrated meter can perform mea surement thou...

Страница 27: ...d together the LCD will look like this FAULT CONDITIONS AND SELFTEST PROCEDURES The fault conditions below may be detected by the software EEPROM data error I2C internal bus failure code dead loop EEP...

Страница 28: ...the correct position of squares Note A maximum of two keys may be pressed simultaneously to be properly recognized To exit the keyboard test procedure press LCD CAL and SETUP simultaneously EEPROM SE...

Страница 29: ...S Temperature has a significant effect on pH The calibration buffer solutions are effected by temperature changes to a lesser degree than normal solutions For manual temperature calibration please ref...

Страница 30: ...for double junction electrodes if necessary Low Slope refer to the cleaning procedure above If the bulb and or junction are dry soak the electrode in HI70300 storage solution for at least one hour Fo...

Страница 31: ...absorbs hydrogen in the presence of reducing mediums This phenomenon is rough on the electrode To make correct redox measurements the following condi tions must prevail The surface of the electrode mu...

Страница 32: ...3 800 4 740 5 680 6 640 7 580 8 520 9 460 10 400 11 340 12 280 13 220 14 160 Reducing pretreatment immerse the electrode for a few min utes in HI 7091 Oxidizing pretreatment immerse the electrode for...

Страница 33: ...HI 3090B 5 BNC connector 5 m 16 5 cable double junction Pt glass body polymer filled RECOMMENDED pH ELECTRODES all electrodes are gel filled and with ce ramic junction unless otherwise indicated HI 1...

Страница 34: ...the electrode connector there is also a spade lug connection for the matching pin HI 3210B 5 BNC connector 5 m 16 5 cable double junction Pt plas tic body PVDF junction polymer filled GOLD ORP ELECTRO...

Страница 35: ...d Goods Authorization number from the Customer Service department and then send it with ship ping costs prepaid When shipping any instrument make sure it is properly packaged for complete protection H...

Страница 36: ...using these products make sure that they are entirely suitable for the environment in which they are used Operation of these instruments in residential areas could cause unaccept able interferences t...

Страница 37: ...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 South Africa Tel 011 61...

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