JENCO 6311 Manual de usuario

OPERATION MANUAL

JENCO MODEL 6311

MICROCOMPUTER BASED

pH / ORP and Temperature

CONTROLLER

JENCO INSTRUMENTS, INC. JENCO ELECTRONICS, LTD.

7968 ARJONS DR., SUITE C P.O. BOX LINKOU-117

SAN DIEGO, CA 92126 TAIPEI HSIEN, TAIWAN,R.O.C.

TEL: (858) 578-2828 TEL: (886-2) 2601-6191

FAX: (858) 578-2886 FAX: (886-2) 2601-7206

E-MAIL:[email protected] E-MAIL:[email protected]

SHANGHAI JENCO ELECTRONICS, LTD.

SHANGHAI SONGJIANG SIJING TOWN

EAST ECONOMIC & TECHNOLOGY DEV. AREA (B)

SHANGHAI, CHINA

TEL: 86-21-5761-9599

FAX: 86-21-5761-9598

E-MAIL:[email protected]

CONTENTS Page

I. INITIAL INSPECTION and ASSEMBLY 3

II. GENERAL INTRODUCTION 4

III.USING THE JENCO MODEL 6311 5

A.FRONT PANEL 7

B.LCD SCREEN 9

C.REAR CONNECTORS 10

D.TURNING ON/OFF THE INSTRUMENT 10

IV. MODEL 6311 MODES 11

A.MAIN DISPLAY MODE 11

B.CALIBRATION/SETTING MODE 12

a. PASSWORD CHECK screen. 12

b. CALIBRATION/ SETTING SELECT screen 13

1. ACTIVE “pH” 13

i. TEMPERATURE PROBE SELECT 13

ii. pH BUFFER I (STAND) SELECT 14

iii. pH BUFFER II SELECT / iv. STAND CALIBRATION 14

v. SLOPE CALIBRATION / vi. EFFICIENCY information 15

Step by Step pH calibration 15

vii. 4mA SETTING / viii. 20mA SETTING 17

ix. RELAY-1, RELAY-2, RELAY-3, RELAY-4 SETTING

x. RELAY 5 (WASH) ON TIME SETTING 18

xi. ID (RS485 ADDRESS) SETTING / xii. PASSWORD SETTING 18

2. ACTIVE “ABS mV” 19

i. TEMPERATURE PROBE SELECT / ii. 4mA SETTING 19

iii. 20mA SETTING / iv.RELAY-1,RELAY-2,RELAY-3,RELAY-4 SETTING 20

v. RELAY 5 (WASH) ON TIME SETTING / vi. ID SETTING 20

vii. PASSWORD SETTING 21

3. ACTIVE “REL mV” 21

i. TEMPERATURE PROBE SELECT 21

ii. OFFSET SETTING / iii. 4mA SETTING 22

iv. 20mA SETTING / v RELAY-1, RELAY-2, RELAY-3, RELAY-4 SETTING 22

vi. RELAY 5 (WASH) ON TIME SETTING / vii. ID SETTING 23

viii. PASSWORD SETTING 23

V. CONTROLLING THE RELAYS 24

A.ISOLATION VOLTAGE 24

B.OUTPUT LOAD 24

C.RELAY ACTION, RELAY SETPOINT & HYSTERESIS VALUE 24

VI. 4-20 mA OUTPUT 25

A.ISOLATION VOLTAGE 25

B.OUTPUT LOAD 25

C.LINEAR ANALOG OUTPUT 25

VII.RS485 INTERFACE OPERATION 27

VIII.ERROR DISPLAYS AND TROUBLESHOOTING 28

IX. pH BUFFERS 30

X. SPECIFICATIONS 31

XI. WARRANTY 32

XII.KEYBOARD FLOWCHARTS 33

A.pH MODE 33

B.“ABS mV” MODE 34

C.“REL mV” MODE 35

I. INITIAL INSPECTION and ASSEMBLY

Carefully unpack the instrument and accessories. Inspect for

damages made in shipment. If any damage is found, notify your

Jenco representative immediately. All packing materials should be

saved until satisfactory operation is confirmed.

MOUNTING PROCEDURE

1. Make a cutout on

any panel, with a

thickness of 1/16 in.

(1.5 mm) to 3/8 in.

(9.5mm).

2. Remove the

mounting assembly

from the controller

and insert the

controller into the

cutout.

3. Replace the

mounting bracket

assembly onto the

controller and

secure the controller to the mounting panel.

Warning:

If the equipment is used in a manner not specified by the manufacturer, the

protection provided by the equipment may be impaired.

Cleaning the instrument:

1.Be sure to remove the power before attempting to clean the meter.

2.Use a lint free cloth and clean water or neutral detergent.

3.Wipe the outer surface of the instrument only.

4.Wipe-dry the instrument before powering again.

II. GENERAL INTRODUCTION

The Jenco Model 6311 (pH/ORP and Temperature) controller is a

rugged microprocessor based instrument assembled in a watertight

¼DIN case, designed for use in laboratories and process control

applications.

The system simultaneously displays pH or ORP, Temperature and

relay status in one large LCD screen.

The model 6311 microprocessor performs a self-diagnostic routine

every time you turn on the unit providing you with basic

information on the stability of the instrument.

The model 6311 is equipped with 4 control relays and one wash

relay. All control relays are programmable and hysteresis driven.

The system also has an isolated 4-20mA analog output, offset and

span configurable for the pH or ORP display.

The model 6311 comes with a RS485 interface that can easily let the

user log all data (from multiple model 6311 or other Jenco Models

with rs485) with an IBM©PC/AT compatible computer. For

advanced users, the model 6311 may also be (PC) remotely

controlled from main display mode to all calibration/setting modes.

III. USING THE JENCO MODEL 6311

A. FRONT PANEL

1. The [MODE] key.

1a. In MAIN display mode

this key will switch the

display from pH, ORP

absolute mV, ORP

relative mV, CAL and

back to pH display

again.

1b. In the PASSWORD

CHECK mode, pressing

the [MODE] key for two

seconds will bypass the

PASSWORD CHECK

and just let the user

continue. Just press the [OK] key to view all control settings but

the user will not be able to change any setting.

1c. After entering “CAL “ mode, pressing the [MODE] key for two

seconds will leave the control setting and return the user to the

MAIN display mode.

2. The [X] RIGHT key.

2a. In CALibration mode where the user can change the settings

and the setting is in decade number format, pressing this key

will select the next digit.

2b. In pH Buffer I Calibration (STAND) if the user wants to skip

electrode calibration, pressing this key will skip pH calibration

but will still display the last calibration’s EFFICIENCY for about

four seconds before continuing to 4mA setting.

2c. In pH Buffer II Calibration (SLOPE) if the user wants to skip

calibration, pressing this key will skip pH slope calibration

(single point calibration only) but will still display the electrode

ideal EFFICIENCY (100%) for about four seconds before

continuing to 4mA setting.

3. The [¿] UP key.

In CALibration mode where the user can change the settings, this

key will show the next possible option. If in decade number

format this key will increment the digit.

4. The [À] DOWN key.

4a. In CALibration mode where the user can change the settings,

this key will show the next possible option. If in decade number

format this key will decrement the digit.

4b.During pH Buffer Calibration, the user can press this key to

repeat the buffer calibration.

5. The [OK] key.

5a. In any mode where the user can change the settings, this key

will save the new settings. If no change has been made then

pressing this key will just move the user to the next setting.

5b. If the unit is password locked then continue pressing this key

will just move the user to view the next setting.

6. The [WASH] key.

Pressing this key for about two seconds in any mode and the

unit is UNLOCKED will turn ON the WASH relay (Relay 5). If

the WASH relay is ON, The WASH relay will turn OFF after the

timer setting or the user may press this key to turn it OFF

immediately.

B. LCD SCREEN

1. MAJOR LCD DISPLAY

2. S.P. annunciator– Set Point, this will turn ON while changing

/viewing the RELAY 1- RELAY 4 settings.

3. 4mA &20mA annunciators – the respective annunciator will turn

ON while in the 4 mA or 20 mA setting mode.

4. STAND &SLOPE annunciators – the respective annunciator will

BLINK before Buffer 1 or Buffer 2 calibration. The respective

annunciator will stay ON while BUFFER 1 or BUFFER 2 is being

calibrated.

5. HYST annunciator – HYSTERESIS, this annunciator will turn

ON while changing/viewing the RELAY 1- RELAY 4 settings.

This annunciator indicates that the value at the MINOR LCD

DISPLAY is the hysteresis value.

6. CAL annunciator – this annunciator will turn ON if the user is

not in MAIN display mode.

7. RELAY annunciator – this annunciator will turn ON if the user is

in RELAY1 – RELAY4 settings.

8. mA annunciator – this annunciator will turn ON if the user is in

4mA or 20mA setting.

9. ID annunciator – this annunciator will turn ON if the user is in

ID (RS485 address) setting.

10. LOCK annunciator – this annunciator will turn ON if the unit

PASSWORD LOCKED.

11. pH, mV, RmV annunciators – this annunciators will indicate the

unit of MAJOR LCD DISPLAY.

12. LCD MINOR DISPLAY

In MAIN mode, the temperature will be displayed here with the

centigrade unit (℃).

In CALibration mode at Relay1-Relay4 settings, the hysteresis

value will be displayed here without any unit.

13. HI?/LO? annunciators – HI? or LO? indicates relay action

and relay number. (“?“ mark is the relay number.)

14. ON5 annunciator – this annunciator will turn ON if the user

turns ON the WASH relay.

C. REAR CONNECTORS

Before connecting the probes, relays, analog output, RS485 and

power cord be sure that you are inserting to the right terminal as

shown above. Remember that the unit is ON once the user plugs in

the power cord to an AC power supply.

1. Connect the AC line to the rear of the instrument. The model

6311 can be used with 115 or 230VAC 50/60 Hz. Power

consumption is 6 watts. Make sure the EARTH connector is

connected to the earth lead of the AC power line.

2. Connect the proper load to the output relays. Make sure that the

load does not exceed the relay rating, 5 Amp at 115VAC and 2.5

Amp at 230 VAC.

3. Set the proper load to the 4-20mA-output connector. Make sure

that the load impedance is less than 500 Ohms.

4. A +5VDC and -5VDC (max 20mA for each) output to provide

excitation voltage for pH/ORP pre-amplifier only.

CAUTION:

1. MAKE SURE THAT THE POWER IS UNPLUGGED BEFORE

WIRING YOUR PROBES, RELAY ETC.

2. MAKE SURE YOU CONNECT THE AC POWER CORD TO THE

CORRECT AC TERMINALS. CONNECTING INCORRECTLY

MAY DAMAGE THE UNIT PERMANENTLY.

D. TURNING ON/OFF THE INSTRUMENT

By just plugging the unit to a

correct AC voltage the unit will be

ready for use. There is no Power key

so unplugging or plugging the unit

will turn OFF or turn ON the unit

respectively.

After the unit is turned on, the unit

will display the software version

number (“Ver”=Version) then it will

perform some basic self-diagnostics

(“EEP” = EEPROM Check, “RO-” =

ROM Check & “RA-” = RAM Check)

and will display “GOOd” or “bAd”.

If you received any “bAd” messages

turn OFF the unit and turn it ON

again. (See VIII. ERROR DISPLAYS

AND TROUBLESHOOTING).

If the message persists then you might

need to call your distributor. (See XI.

WARRANTY).

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