JENCO 6360 User manual
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
1
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
2
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).
3
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
4
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.
5
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.
6
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.
7
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.
8
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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