JENCO 3321 Manuale utente

Operation Manual

MODEL 3321

Microcomputer Based Conductivity/Resistivity Controller

JENCO ELECTRONICS, LTD.

MANUFACTURER OF PRECISION INSTRUMENTS

CONTENTS

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

INITIAL INSPECTION……...………………..................................................................2

USING THE JENCO MODEL 3321……......................................................................3

A. Mounting procedure.....................................................................................3

B. Front panel....................................................................................................5

C. LCD screen....................................................................................................7

D. Rear connectors...........................................................................................9

E. Measure mode.............................................................................................10

F. Setting mode................................................................................................11

G. Conductivity/Resistivity calibration mode..............................................18

H. Controlling the relays.................................................................................19

ERROR DISPLAY AND TROUBLESHOOTING……………..……….........................21

SPECIFICATIONS……………..………………………………………........................23

WARRANTY……………..………...............................................................................25

GENERAL INTRODUCTION

Thank you for selecting the JENCO Model 3321. The 3321 Conductivity/Resistivity

Controller is a rugged microprocessor based instrument assembled in a watertight 1/8

DIN case, designed for use in laboratories and process control applications.

The system displays Conductivity / Resistivity or Temperature status in one large LCD

screen.

The model 3321 microprocessor performs a self-diagnostic routine every time you turn

on the unit, it will provide you with basic information on the stability of the instrument.

The model 3321 is equipped with 2 control relays. All control relays are programmable

and hysteresis driven.

INITIAL INSPECTION

Carefully unpack the unit 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.

USING THE JENCO MODEL 3321 ERVIEW

A. Mounting Procedure

PANEL CUTOUT DIMENSIONS

45.0

1.772"

92.0 3.622"

0.813 0.032

0.61

0.024

0.00

0.000

0.000 0.000

±±

DRAWING 1

1. Make a cutout on any panel, with a

thickness of 1/16 inch (1.5mm) to

3/8 inch (9.5mm). Refer to

DRAWING 1.

DRAWING 2

2. Remove the mounting assembly

from the controller and insert the

controller into the cutout. Refer to

DRAWING 2.

Mounting Brackets

Panel Mounting brackets

DRAWING 3

3. Replace the mounting bracket

assembly onto the controller and

secure the controller to the

mounting panel. Refer to

DRAWING 3.

【

Note

】

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

provided by the equipment may be impaired.

B. Front Panel

The front panel consists of a 4-digit LCD display and 4 keys.

ATC

COND CONTROLLER 3321

1. [ MODE ] key:

1a. In the Measure mode, this key will switch the display in sequence from

Conductivity, Temperature and back to Conductivity again or from Resistivity,

Temperature and back to Resistivity again.

1b. In the Calibration/Setting mode, pressing this key for five seconds will move

you back to the previous parameter in the case when recalibration / resetting is

required.

2. [ UP ] key:

2a. In the Calibration mode, pressing this key will increase the numeral increment.

In the Setting mode, pressing this key will show the next possible option and

increase the numeral increment.

2b. In the Measure mode, pressing this key and [ENTER] key at the same time,

the unit will enter the Calibration mode.

3. [ DOWN ] key:

3a. In the Calibration mode, pressing this key will decrease the numeral

increment. In the Setting mode, pressing this key will show the next possible

option and decrease the numeral increment.

3b. In the Measure mode, pressing this key and [ENTER] key at the same time,

the unit will enter the Setting mode.

4. [ ENTER ] key:

In any mode where the user can change the settings, pressing this key will save

the new settings. If no change has been made then pressing this key will just lead

the user to the next setting.

C. LCD screen

HI1 LOW2

HI2 LOW1

CAL

MAN

ATC

1 2 3 4 5 6

1098

1. Major LCD display.

2. CAL – This icon will be displayed if the meter is in the Calibration/Setting mode.

3. HI1 & LOW1 – These icons, when displayed, indicate relay action and relay

number.

4. HI2 & LOW2 –These icons, when displayed, indicate relay action and relay

number.

5. MΩ–Unit indicator.

6. ℃–Temperature and unit display.

7. uS – Unit indicator.

8. ATC –This icon will be displayed when a temperature probe is connected.

9. MAN –This icon will be displayed if no temperature probe is not connected.

10. mS – Unit indicator.

D. Rear connectors

CELL 10K TH

100~230VAC

LNE

Rel 1 Rel 2

Shield

*Specify “L’ = “Live Lead” 100 to 230 VAC Volts and “N” = “Neutral Lead”

1. Connect the AC line to the rear of the instrument. The model 3321 can be used

with 100~240V AC at 50/60 HZ. 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.

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