JENCO 6360 Manuale utente

Operation Manual

JENCO MODEL 6360

MICROCOMPUTER BASED

pH/mV/Conductivity/TDS/

Salinity/Temperature

PORTABLE METER

6360

CONTENTS

GENERAL INTRODUCTION………………....................1

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

WATER PROOF…….……...………………....................2

INSTALLING THE BATTERIES..…………....................3

DISPLAY & KEYS FUNCTIONS…..……………...………4

A. Display ................................................................4

B. Keys...................................................................6

OPERATIONAL PROCEDURES..…….........................8

A. Preparing Standard Solutions................................8

B. Calibration..........................................................9

C. Conductivity Measurements..................................13

D. Save, Recall and Delete Data.................................13

RS232C INTERFACE OPERATION........................... 15

ERROR DISPLAYS AND TROUBLESHOOTING.......16

SPECIFICATIONS………………..……........................18

WARRANTY……………...............................................19

GENERAL INTRODUCTION

Thank you for selecting the 6360 meter. The 6360 is a precision tool

that measure pH, ORP, conductivity, TDS, salinity and temperature.

A built-in microprocessor stores, calculates and compensates for all

parameters related to conductivity and temperature determinations.

This unit has a waterproof IP65 case. The touch mode keys are

highly reliable with tactile and audio feedback. This meter can

operate with six AAA-size alkaline batteries or a UL/CE approved

AC adapter. Re-calibration is not required when power is restored.

The front of the meter has a large LCD that displays temperature

and either temperature compensated or non-temperature

compensated conductivity, pH, ORP, temperature compensated

TDS or salinity simultaneously along with user prompts and mode

indicators. The unit prompts the user through calibration and

measurement procedures.

The unit is also equipped with a non-volatile memory allowing the

user to store 50 different sets of readings. This unit will assign a site

number for each set of reading so the user can review the data

easily.

The model 6360 is available with a four-wire conductivity cell

(K=0.475) and a two-wire conductivity cell (K=0.1). Other features

include automatic conductivity ranging, automatic temperature

compensation, long battery life and 50/60 Hz AC noise rejection.

This unit is universal and user-friendly for field, industrial and

laboratory applications.

①LCD

②RS232 connector

③Keypad

INITIAL INSPECTION

Be careful to 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.

WATER PROOF

Though this unit has a waterproof IP65 case, DO NOT use it

underwater. The watertight case prevents permanent damage to the

unit if accidentally dropped into non-corrosive solutions. Follow

these steps immediately if the unit is immersed in any solution:

1. Rinse unit carefully with distilled water. After rinsing and drying,

inspect and clean connectors to remove all contaminants that

may affect probe connections.

2. Wait for the unit and probe to dry completely before resuming

operation.

3. If the unit does not function correctly after step 1 and 2, call

JENCO for possible repair or replacement (see Warranty).

INSTALLING THE BATTERIES

The 6360 meter is packaged with six AAA-size alkaline batteries or

a UL/CE approved AC adapter, required for operation. To insert the

batteries into the meter, follow the procedure outlined below.

Figure 1: Battery compartment

1. Position the meter so that the bottom part of the meter is

facing up . Insert a coin in the side closure slot. Tilt the coin

and thrust it upward to open the battery compartment and

lift the closure up.

2. Remove all of the old batteries and insert a new set of

batteries ensuring the polarities are correct.

AAAbattery

BatteryCover

SIDE CLOSURE SLOT

DISPLAY & KEYS FUNCTIONS

A. Display

Figure 2: Active LCD screen

1. LO BAT-

Low battery indicator.

4. %-

Displays during calibration:

Indicates temperature coefficient

unit.

2. Main Display-

Display the reading of pH,

ORP, Conductivity, TDS &

Salinity.

5. Main Display Units-

“pH”: pH mode unit.

“mV”: ORP mode unit.

“uS, mS”: Conductivity mode unit.

“ppm, ppt”: TDS and Salinity

mode unit.

3. SALINITY-

Display that the unit is in the

SALINITY mode.

6. ℃/℉-

Temperature unit.

In Uncompensated Conductivity

mode, the temperature unit will

not blink.

In Compensated Conductivity

mode, the temperature unit will

blink.

7. Secondary Display-

Temperature reading and

site number.

10. AUTO/MAN-

“AUTO”: Used to indicate that a

temperature sensor is attached.

“MAN”: Used to indicate that a

temperature sensor is not

attached and the pH temperature

compensation is manual.

8. WAIT/CAL-

“WAIT”: Used when in pH

calibration to indicate that the

reading is not yet stable.

“CAL”: Used to indicate that

unit is in calibration mode.

11. RC-

Indicate that the unit is in recall

mode and actively displaying

saved data.

9. STAND/SLOPE-

During calibration this will

indicate which part of pH is

being calibrated, in normal

operation this will indicate

(blinking) which part of pH is

not yet calibrated.

B. Keys

ON/OFF-

Powers on and shuts off the meter.

MODE-

Selects display mode. In normal operation, press this

key to sequentially display pH, ORP, uncompensated

conductivity, compensated conductivity, TDS,

salinity, Recall and Erasing interface.

In calibration mode, press this key to exit the current

calibration parameter and enter into the next one.

In “rcl” and “ErAS” modes, press this key to exit “rcl”

and “ErAS” modes respectively.

UP/DOWN-

Increases or decreases the display value as desired.

In “rcl” mode, view saved data and data storage site

number by pressing these keys.

CAL-

In “Measurement” mode, press this key to enter into

“Calibration” mode.

In pH mode, press this key can enter the pH

calibration.

In conductivity or salinity or TDS mode, press this

key can change TDS ，conductivity constant ，

temperature coefficient, reference temperature,

compensated conductivity.

ENTER-

In “Calibration” mode, press this key one time to save

the current value to memory.

In “Measurement” mode, press this key 5 seconds to

save reading into the next available data storage site.

In “rcl” mode, press this key to display the last set of

saved data.

In “ErAS” mode, press this key to erase all data.

STAND

STAND-

During pH calibration press this key will start the

calibration of the OFFSET of the pH electrode.

Press this key with ON/OFF when the instrument is

off, the unit will acknowledge by displaying “7.00” for

(7.00,4.01,10.01) and “6.86” for (6.86,4.00 & 9.18) in

the second interface after turning on.

SLOPE SLOPE-

During pH calibration this key will start the calibration

of the SLOPE of the pH electrode.

OPERATIONALPROCEDURES

A. Preparing Standard Solutions

Suitable conductivity standards are available commercially, the user

can prepare them using research grade reagents.

Here are some standard solutions the user can prepare to calibrate

the probe of the model 6360.

1. Standard solution of 14.94uS at 25℃: Accurately measure out

100ml of the 147uS standard solution as in point 4. Dilute it

with 900ml of distilled water.

2. Standard solution of 147uS at 25℃: Accurately measure out

100ml of the 1413uS standard solution as in point 1. Dilute it

with 900ml of distilled water.

3. Standard solution of 1413uS at 25℃: Accurately weight out

0.746 g of research grade dried Potassium Chloride (KCL).

Dissolve in 1000ml of distilled water.

4. Standard solution of 12.90mS at 25℃: Accurately weight out

7.4365 grams of research grade dried Potassium Chloride

(KCL). Dissolve in 1000ml of distilled water.

5. Standard solution of 111.9mS at 25℃: Accurately weight out

74.264 grams of research grade dried Potassium Chloride

(KCL). Dissolve in 1000ml of distilled water.

[Note: The user can store the remaining solution in a plastic

container for one week but the air space between the cap and the

solution must be kept to an absolute minimum. Storing the excess

solution below 4℃can increase the storage life. If you have any

doubt of the accuracy of the stored solution, a fresh batch should be

prepar ed.]

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