JENCO 6309 POT Manual de usuario
OPERATION MANUAL
JENCO MODEL 6309 POT
MICROCOMPUTER BASED
pH /ORP/ Temperature
CONTROLLER
JENCO ELECTRONICS,LTD.
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CONTENTS Page
I. INITIAL INSPECTION and ASSEMBLY 3
MOUNTING PROCEDURE 3
II. GENERAL INTRODUCTION 4
III. USING THE JENCO MODEL 6309 POT 5
A. FRONT PANEL (Key function illustration) 5
B. MAIN DISPLAY MODE 6
C. REAR CONNECTORS 8
D. TURNING ON/OFF THE INSTRUMENT 10
IV. MODEL 6309 POT MODES 11
A. NORMAL MODE 11
B. CALIBRATION/SETTING MODE 11
How to use the keys 12
a. CHECK PASSWORD 13
b. USER SETTING 14
c. pH CALIBRATION 14
Step by step pH calibration 15
d. pH CONTROL SETTING 16
e. ORP CALIBRATION 17
f. ORP CONTROL SETTING 18
g. CURRENT SETTING 19
h. TEMP. CONTROL SETTING 19
I. RS485-RTU/PASSWORD SETTINGS 20
V. CONTROLLING THE RELAYS 21
A.ISOLATION VOLTAGE 21
B.OUTPUT LOAD 21
C.RELAY ACTION, RELAY SETPOINT,
HYSTERESIS MODE & HYSTERESIS VALUE 21
D. pH RELAYS 22
E. ORP RELAYS 23
F. TEMPERATURE RELAY 23
VI. 4-20 mA OUTPUT 23
A. ISOLATION VOLTAGE 23
B. OUTPUT LOAD 23
C. pH LINEAR TRANSMITTER (mA) OUTPUT 24
D. ORP LINEAR TRANSMITTER (mA) OUTPUT 25
E. pH ANTILOG (mA) OUTPUT 26
VII. RS485 INTERFACE OPERATION 27
A. INTRODUCTION 27
B. PREPARING THR METER 27
VIII.ERROR DISPLAYS AND TROUBLESHOOTING 28
IX. pH BUFFERS 30
X. SPECIFICATIONS 31
XI. WARRANTY 33
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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.
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II. GENERAL INTRODUCTION
The Jenco Model 6309 POT (pH, ORP and Temperature) System is
a rugged microprocessor based instrument assembled in a
watertight ¼ DIN case, designed for use in laboratories and process
control applications.
The model 6309 POT 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 system simultaneously displays pH, ORP, Temperature, relay
status and current output in one LCD graphic screen.
The model 6309 POT is equipped with 5 relays (2 programmable
high or low relay for pH, 2 programmable high or low relay for ORP
and one programmable high or low relay for temperature); all relays
are hysteresis driven and configurable to CENTER or EDGE mode.
The system also has a isolated 4-20mA analog output, offset and
span configurable for the pH or ORP display.
The model 6309 POT comes with a RS485 interface that can easily
let the user log all data (from multiple model 6308 or 6309) with an
IBM©PC/AT compatible computer. For advanced users, the model
6309 POT may also be remotely controlled from main display mode
to all calibration/setting modes.
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III. USING THE JENCO MODEL 6309 POT
A. FRONT PANEL
1. The [MODE/-]MODE or CURSOR key.
1a. In Normal mode this key will change the ORP display to
ORP ABS(olute)orORPREL(ative).
1b. In Calibration/ Setting mode this key will move to the
next digit of the current active parameter.
1c. In Calibration/ Setting mode, pressing this key for two
seconds will move you back to the previous parameter.
2.The[CAL / VIEW]key.
2a. Pressing this key for about two seconds, during main
display mode will switch to Calibration/Setting mode.
2b. During Calibration/Setting mode this key will switch to the
next available Calibration/Setting page. Pressing this key at
TEMP. CONTROL SETTING will place the display back to
the MAIN DISPLAY MODE.
MODE CAL.
VIEW
CURSOR
pH RECAL.
6309POT
JENCO
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1
2
3
4
5
6
7
8
9
1
0
3. The []UP key.
During Calibration/Setting mode this key will increment the
current blinking digit of the active parameter.
4. The [/pH Recal.]DOWN or pH RECALIBRATE key.
4a.During Calibration/Setting mode this key will decrement
the blinking digit of the active parameter.
4b. During pH calibration, you can press this key to
recalibrate the stand (offset) or slope buffer again and again.
5. The []ENTER key.
During Calibration/Setting mode, this key will save the current
modified parameter and move the cursor to the next
parameter.
6. The [ ] LIGHT key.
This key will turn on or turn off the backlight of the LCD.
The backlight will automatically turn off if there is no key
activity after two minutes.
B. MAIN DISPLAY MODE
1. RELAY -
this will show
the status of
the relays. At
Power-ON a
“DISABLED”
message will
be displayed
for about 3
seconds
before going
to “NORMAL”
or “CHECK
STATUS” operation. After exiting the Calibration/Setting pages
and the unit is not password locked, a “FROZEN” message
will be displayed for about three seconds before returning to
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NORMAL or CHECK STATUS operation. IF no relay is ON then
the “NORMAL” message will be displayed. IF any relay is ON
then the “CHECK STATUS” will be displayed.
2. CURRENT OUT - this will display the actual output of the 4-20
mA output. At POWER-ON this will show “OFF” for about three
seconds before going to normal operation. After exiting the
Calibration /Setting pages a “FROZEN” message will be
displayed for about three seconds before returning to normal
operation.
3. REL or ABS – this text will indicate if the present ORP reading
is ABSolute or RELative value.
4. annunciator - This will be displayed if Calibration/Setting
pages are password locked, meaning the user will not be able
to change the calibration/setting values unless the correct 4 digit
number has been entered.
5. H,Lannunciators - one or both of these annunciators will be
displayed if the left side reading (LARGE FONT DISPLAY)
triggered the respective relay settings. The rightmost character
will indicate RELAY 1 if the display is pH or RELAY 3 if the
display is ORP. The leftmost character will indicate RELAY2 if
the display is pH or RELAY 4 If the display is ORP. If the display
is ORP the annunciators will only indicate the unit selected at the
RELAY/mA option in the ORP CALIBRATION .
6. LARGE FONT DISPLAY - this reading uses the biggest font
and the reading here is the only one that will affect the analog
output. You can select the pH or ORP reading only to be shown
here by changing the Transmitter Output (pH LINEAR, pH
ANTILOG or ORP LINEAR) option.
7. H,Lannunciators - one or both of these annunciators will be
displayed if the left side reading (MEDIUM FONT DISPLAY)
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triggered the respective relay settings. The rightmost character
will indicate RELAY 1 if the display is pH or RELAY 3 if the
display is ORP. The leftmost character will indicate RELAY2 if
the display is pH or RELAY 4 If the display is ORP. If the display
is ORP the annunciators will only indicate the unit selected at the
RELAY/mA option in the ORP CALIBRATION .
8. MEDIUM FONT DISPLAY- this is the secondary reading and no
analog output is supplied.
9. Hor Lannunciator - one of these annunciators will be displayed
if the temperature reading triggered the temperature relay
setting. Only one RELAY is available for the temperature.
10. Temperature - the current temperature of the solution where the
temperature probe is immersed.
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 below. Remember that the unit is ON once the user plugs
in the power cord to an AC power supply.
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1. Connect the AC line to the rear of the instrument. The model
6309 POT 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
2.5Amp at 230 VAC.
5. Set the proper load to the 4-20mA-output connector. Make sure
that the load impedance is less than 500 Ohms.
CAUTION:
1. MAKE SURE THAT THE POWER IS UNPLUGGED BEFORE
WIRING YOUR PROBES, RELAY ETC.
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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, it will
perform some basic self diagnostics
and will display “OK” 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).
After the self-diagnostic is complete the temperature will be
displayed on the lowest part of the screen and you are ready to
make pH/ORP/Temperature measurements. Just immerse the
probes half way to the liquid. If possible do not allow the probes to
touch any solid object in the solution. There should be no air
bubbles around the probes either. Shaking or moving the probes
vigorously before recording any measurement will dislodge any
bubbles formed in the probes.
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