JENCO 6309PDTF Manuale utente

Operation Manual

MODEL 6309PDTF

pH/DO/Temperature

Transmitter/Controller

6309PDTF

CONTENTS

GENERAL INTRODUCTION.........................................................................................2

ASSEMBLY...................................................................................................................2

A. Mounting Procedure............................................................................................2

B. Cleaning The Meter..............................................................................................3

DISPLAY & KEY FUNCTIONS.....................................................................................3

A. Display................................................................................................................3

B. Operational Keys Description...............................................................................5

REAR CONNECTORS..................................................................................................6

TURNING ON/OFF THE METER..................................................................................7

MODEL 6309PDTF MODES.........................................................................................7

A. Measure Mode.....................................................................................................7

B. Calibration/Setting Mode......................................................................................9

1. Password check page..................................................................................10

2. User setting page.........................................................................................10

3. pH calibration page......................................................................................11

4. pH control settings page..............................................................................13

5. DO calibration page.....................................................................................14

6. DO control settings page..............................................................................15

7. Current out page..........................................................................................16

8. Temp. control page......................................................................................17

9. RS485-RTU/password settings page.............................................................18

CONTROLLING THE RELAYS...................................................................................18

A. Isolation Voltage................................................................................................18

B. Output Load.......................................................................................................18

C. Relay Action, Relay Setpoint, Hysteresis Mode & Hysteresis Value..................... 19

D. pH Relays..........................................................................................................20

E. DO Relays..........................................................................................................21

F. Temperature Relay.............................................................................................21

4 - 20 mA OUTPUT.....................................................................................................21

A. Isolation Voltage................................................................................................21

B. Output Load.......................................................................................................21

C. pH Linear Output...............................................................................................22

D. DO Linear Output ..............................................................................................22

E. pH Antilog Output..............................................................................................23

RS485 Interface Operation........................................................................................23

A. Introduction.......................................................................................................23

B. Preparing The Meter...........................................................................................23

ERROR DISPLAYS AND TROUBLESHOOTING.......................................................24

pH BUFFERS..............................................................................................................25

DO ALTITUDE/PRESSURE TABLE...........................................................................26

SPECIFICATIONS...................................................................................................... 27

WARRANTY............................................................................................................... 28

GENERAL INTRODUCTION

The Jenco Model 6309PDTF (pH, DO and Temperature) system is a rugged microprocessor

based meter assembled in a watertight ¼ DIN case, designed for use in laboratories and

process control applications.

The model 6309PDTF microprocessor allows the user to easily recalibrate the parameters for

the probes. The DO system requires only a single point calibration, regardless of which

dissolved oxygen display used. The microprocessor also performs a self-diagnostic routine

every time the user turns on the unit providing basic information about the stability of the meter.

The system simultaneously displays pH, DO, temperature, relay status and current output in one

graphic LCD screen. The LCD also includes a backlight for low-lit environments. This system

uses pH electrode for the pH, a “polygraphic clark” membrane for the DO and a precise

thermistor for temperature, providing the user with accurate readings for all measurements.

The model 6309PDTF is equipped with 5 relays (2 programmable high/low action relays for pH.

2 programmable high/low relays for DO and 1 programmable high/low relay for temperature). All

relays are hysteresis driven and configurable to CENTER or EDGE mode. The system also has

an isolated 4-20 mA analog output, offset and span configurable for the pH or DO display.

The model 6309PDTF comes with a RS485 interface which can easily let the user log all data

(from multiple model 6309 or 6308) with an PC.

ASSEMBLY

Carefully unpack the meter 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.

A. Mounting Procedure

. Make a cutout on any panel, with

a thickness of 1/16 in. (1.5 mm) to

3/8 in. (9.5mm).

. Remove the mounting assembly

from the controller and insert the

controller into the cutout.

. 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.

B. Cleaning The Meter

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 meter only.

4. Wipe-dry the meter before powering again.

DISPLAY & KEY FUNCTIONS

A. Display

Figure 1

1. -

This will be displayed if Calibration/Setting

pages are password locked meaning the

user can’t change the values unless the

correct 4 digit number has been entered.

2. RELAY-

This will show the status of the relays.

At Power-ON a “DISABLED” message will

be displayed for about three 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 “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.

3. 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 3

seconds before returning to normal

operation. An “ERROR” display here means

that the absolute difference between 4 mA

and 20 mA is less than 1.0 pH (If pH

LINEAR or pH ANTILOG is selected) or less

than 1.0% (If DO LINEAR is selected and

RELAY/mA is set at %) or 0.10 ppm (If DO

LINEAR is selected and RELAY/mA is set at

ppm) and that the current output is disabled.

4. H,L-

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 DO. The leftmost

character will indicate RELAY 2 if the

display is pH or RELAY 4 If the display is

DO. If the display is DO, the annunciators

will only indicate the unit selected at the

RELAY/mA option in the “DO calibration

page”.

H : High action relay and the relay is

energized.

L : Low action control and the relay is

energized.

5. MAIN DISPLAY-

This reading uses the biggest font and the

reading here is the only one that will affect

the analog output. You can only select the

DO or pH reading to be shown here by

changing the Transmitter Output option.

6. H,L-

One or both of these annunciators will be

displayed if the left side reading (MEDIUM

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 DO. The leftmost

character will indicate RELAY 2 if the

display is pH or RELAY 4 If the display is

DO. If the display is DO, the annunciators

will only indicate the unit selected at the

RELAY/mA option in the “DO calibration

page”.

H : High action relay and the relay is

energized.

L : Low action control and the relay is

energized.

7. SECONDARY DISPLAY-

This is the secondary reading and no analog

output is supplied.

8. H,L-

One of these annunciators will be displayed

if the temperature reading triggered the

temperature relay setting. The temperature

relay setting can be configured to HIGH or

LOW.

H : High action relay and the relay is

energized.

L : Low action control and the relay is

energized.

9. TEMPERATURE-

The current temperature of the solution.

B. Operational Keys Description

Figure 2

NO.

Key

Description

MODE-

In the measure mode, this key will change the DO display to DO % or DO ppm.

In the Calibration/Setting mode this key will move to the next digit of the current

active parameter.

In the Calibration/Setting mode, pressing this key for two seconds will move the

user back to the previous parameter.

CAL/VIEW-

Pressing this key for about two seconds, during normal display mode will switch

to Calibration/Setting mode.

During Calibration/Setting mode, pressing this key will switch to the next

available Calibration/Setting page. Pressing this key at the last User/Calibration

page will return the user to the normal display mode.

UP-

During Calibration/Setting mode, this key will increment the current blinking digit

of the active parameter.

DOWN-

During Calibration/Setting mode, this key will decrement the current blinking

digit of the active parameter.

During pH calibration, the user can press this key to recalibrate the stand or

slope buffer again.

ENTER-

During Calibration/Setting mode, this key will save the current modified

parameter and move to the next parameter.

LIGHT-

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 within two

minutes.

REAR CONNECTORS

Figure 3

For wiring the probes, relays, analog output, RS485 and power cord, please see proper

wiring instructions indicated below. Be sure the AC plug is not plugged-in. 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 meter. The model 6309PDTF can be used with

115 or 230 VAC 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 115 VAC and 2.5 Amp at 230 VAC.

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

is less than 500 Ohms.

[Note: MAKE SURE YOU CONNECT THE AC POWER CORD TO THE CORRECT AC

TERMINALS. CONNECTING INCORRECTLY MAY DAMAGE THE UNIT

PERMANENTLY.]

TURNING ON/OFF THE METER

MODEL 6309 PDTF

SELF DIAGNOSTICS

EEPROM

RAM

ROM

VERSION :3.00

:OK

By just plugging the unit to a correct AC voltage, the unit will be ready for use. There is no

Power key so unplugging and 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

ERROR DISPLAYS AND TROUBLESHOOTING).

If the message persists then you might need to call your distributor. (See WARRANTY) .

After the self-diagnostic is complete, the temperature reading will be displayed on the lowest

part of the screen and the user is ready to make DO or pH measurements.

MODEL 6309PDTF MODES

A. Measure Mode

Turning ON the unit will always display in the measure mode.

The position of pH and DO display can be switched depending on the selected analog

output on the Current out setting page of the Calibration/Setting mode. (See

Calibration/Setting Mode)

This meter is designed to provide 4 distinct measurements:

1. Temperature

Current temperature of the solution, which is always displayed.

2. pH

The degree of acidity or alkalinity of the solution (with automatic temperature

compensation).

3. Dissolved Oxygen %

A measurement of oxygen in percent saturation.

4. Dissolved Oxygen ppm

A measurement of oxygen in ppm.

Temperature, pH, and DO (% or ppm) are always simultaneously displayed in the graphic

LCD screen in normal mode. The user can select which DO unit to display by pressing the

“MODE” key.

B. Calibration/Setting Mode

Pressing the “CAL/VIEW” key for about two seconds during the measure mode will bring-

up the first page of eight pages of the Calibration/Setting mode. Pressing “CAL/VIEW”

key will switch to the next page. At the last page, press “CAL/VIEW” key again will return

the user to measure mode.

Below is a simple flowchart showing the path of the “CAL/VIEW” key:

The user can change any blinking words or digit by pressing the “UP” or “DOWN” keys.

For options in digit format, the user needs to press the “MODE” key to move to the next

digit. If the user is satisfied with the selection made, press the “ENTER” key to save the

changes and move to the next option. If the user does not need to change the current

blinking option just press the “ENTER” key to move to the next selection.

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