628N
Operation Manual
MODEL ORP 628N
Microcomputer Based
ORP & Temperature
Pocket Meter
ORP628N
CONTENTS
INITIAL INSPECTION AND ASSEMBLY .....................2
BEFORE YOUR FIRST USE........................….............2
A. Replace the Batteries ............................................2
B. Soak the Electrode.... ...........................................2
C. Setup and Calibrate the Electrode and Meter...........2
VISIONPLUS ORP 628N OVERVIEW..........................3
A. Meter Description..................................................3
B. VisionPlus Graphical Display .................................3
OPERATION MODES AND KEYPAD OPERATIONS..4
A. Operation Modes...................................................4
B. Keypad Operations ................................................4
USING VISIONPLUS ORP 628N...................................5
A. Power ON/OFF ......................................................5
B. Set Date and Time ..................................................5
C. Relative ORP calibration.........................................6
D. Measure…….........................................................6
E. Hold Data ............................................................6
F. Save Data.......... ....................................................6
G.
Recall Data ..........................................................7
H. Erase Data .............................................................7
ONGOING MAINTENANCE...........................................7
A. Replace Electrode ..................................................7
ERROR DISPLAYS AND TROUBLESHOOTING ……..8
SPECIFICATIONS .........................................................8
WARRANTY ..................................................................9
1
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.
BEFORE YOUR FIRST USE
A.
Replace the Batteries
Replace the battery when the blinking
low battery indicator “BAT ” appears on
the lower left hand side of the LCD
screen. The instrument can operate
within specifications for
approximately2~3 hours after low
battery indicator appears.
1. Shown in the right figure.
2. Take off the battery cover.
3. Remove all of the old batteries and
insert a new set of batteries ensuring
the polarities are correct.
1
2
B. Soak the Electrode, if
necessary for up to 24 hours
1. Remove the electrode cap covering the VisionPlus ORP meter.
2. Soak the ORP electrode in standard solution or distilled
water for 10 minutes before first use or after storage.
C.
Setup and Calibrate the Electrode and Meter
VisionPlus ORP 628N must be setup and calibrated before your
first use. Please follow the instructions detailed in section
USING VISIONPLUS ORP 628N.
2
VISIONPLUS ORP 628N OVERVIEW
A.
Meter Description
1
07-15-04
ABS
2. LCD screen
14:07
302
mV
19.1 °C
Hold
Store
1. Battery cap
2
3
Mode Scroll
3. Keypad
4. Electrode collar
5. Electrode & ATC assembly
(Electrode cap is not shown.)
R
VisionPlus
ORP628N
4
5
B.
VisionPlus Graphical Display
4
1
2
5
6
3
1. DATE (MM-DD-YY)
2. ABSolute or RELative ORP mode indicator
3. HOLD mode indicator
4. TIME (HH:MM – 24H format)
5. ORP reading & unit
6. TEMPERATURE reading & unit
Note: ℃ or °F is factory pre-set.
3
OPERATION MODES AND KEYPAD OPERATIONS
A.
Operation Modes
. VisionPlus ORP/TEMP 628N meter has 7 operation modes:
1. Measure Mode.--Measure Mode is used to make all absolute or
relative ORP and temperature measurements.
2. Calibration Mode.--Calibration Mode is used to perform offset
voltage adjust.
3. Hold Mode.--Hold Mode is used to display held measured values
for increased ease of use.
4. Recall Data Mode.--Recall Data mode is used to display
measured data which have been stored in memory.
5. Store mode.--Can save up to 50 set data in non- volatile memory.
6. Date and Time Set Mode.--Date and Time Set Mode is used to
change date and time.
7. Erase Mode.--Can erase 50 set data in non- volatile memory.
B.
Keypad Operations
Key
Operation
Duration Function
Mode
All, except Hold
Measure
HOLD
2 seconds or
Turns meter on/off.
more
Holds current measurement
0 second reading. Press again to
resume measuring.
Hold
0 second
Date and Time
Set
0 second
Calibration
0 second
Measure
Measure
MODE
Calibration
Date and Time
Set
Measure
STORE
Calibration
Returns to Measure Mode.
Moves cursor to next set of
data.
Moves cursor to next digit
or sign.
2 seconds Enters Calibration Mode.
10 seconds or Enters Date and Time Set
more
Mode.
0 seconds Increases current number.
0 seconds Increases current number.
Stores
Temperature,
current absolute & relative
2 seconds
ORP reading, date and
time into memory.
2 seconds or
Leaves Calibration Mode.
more
4
Key
Operation
Duration Function
Mode
2 seconds or
Leaves Recall Data Mode.
more
Date and Time 2 seconds or Leaves Date and Time
Set
more
Set Mode.
Erases all user data then
Erase
0 second
Exits Erase Mode.
Recall Data
STORE
Measure
2 seconds Enters Recall Data Mode.
0 second
Recall Data
SCROLL
0 second
Calibration
Date and Time
Set
Measure
0 second
Scrolls through stored data.
Decreases current number.
Decreases current number.
10 seconds Enters Erase 50 set nonor more volatile memory mode.
Erase
0 second
Exits Erase Mode
USING VISIONPLUS ORP 628N
A.
Power ON/OFF & Shutdown
Press “HOLD” key for 2 seconds or more. The unit will turn on and
enter the “Measure Mode”. Repeat the process to turn off the unit.
The unit will also automatically turn off after 10 minutes of no key
activity.
B.
Set Date and Time
1. Press “MODE” key for 10seconds or more to enter“Date and Time
Set Mode”.
2. Press “HOLD” key to
selectcalendar or time
parameters.
3. Press “MODE” and “SCROLL”
keys to increase and decrease
values respectively.
4. Press “STORE” key for 2
seconds to exit and return to“Measure Mode”.
5
C.
Relative ORP Calibration
If the user requires a relative ORP calibration, follow these steps:
1. Clean and dip meter into
standard solution .
2. Wait reading stable, press
“MODE” key for 2 to 3 seconds
to enter “Calibration” mode and
enter new relative ORP value.
3. Press “HOLD” key to move the
digit position ( polarity & digit).
4. Press “MODE” and “SCROLL”
keys to increase and decrease
values respectively.
5. Press “STORE” key for 2 seconds to exit and return to measure
mode displaying absolute ORP value.
6. Press “MODE” key to display relative ORP value.
Note:
1. The ORP offset calibration is only needed in some applications.
2. Don’t enter calibration mode when absolute reading is over ±1000
mV range.
D. Measure
The ORP/TEMP 628N can be used to measure absolute or relative
ORP values.
1. Dip the meter into the test solution in the “Measure Mode”.
2. Press “MODE” key to select absolute or relative ORP readings.
E. Hold Data
1. When the ORP reading is
stable, press “HOLD” key once
to lock the reading.
Note: The unit cannot be power
off in “Hold Mode”.
2. Press “HOLD” key again to
unlock reading and the unit will
return to “Measure Mode”. The
unit is now ready for another
measurement.
F. Save Data
1. Either in the “Hold Mode” or the “Measure Mode”, press “STORE”
key for 2-3 seconds. The “ SAVE” and “M-XX” icons will appear
indicating the reading has been saved and stored in memory
location XX. The unit will automatically returns to “Measure Mode”
and ready to perform other task.
Note: The ORP/TEMP 628N is equipped with a non-volatile memory
that can store up to 50 different sets of readings
6
(ABSolute & RELative mV, temperature, Time and date).Nonvolatile memory will be retained even if power is lost. When all
50 memory locations are used up, the next set of data saved
will overwrite the data stored in the first location and so on.
G.
Recall Data
1. In “Measure Mode”, press “SCROLL” key 2-3 seconds, the last
set (assume it is M12) of saved data will appear.
2. By pressing the “SCROLL” key, previous ( M11) saved data will
appear.
3. Press “STORE” key for 2 seconds to exit and return to “Measure
Mode.
H.
Erase Data
1. Press “SCROLL” key over 10
seconds to enter erase mode.
See the figure below.
2. Press “STORE” key, the unit
will display “DATA CLEAR” and
erase all data in the nonvolatile memory.
3. Press “SCROLL” key to leave
the erase mode and return to
“Measure Mode”.
ONGOING MAINTENANCE
A.
Replace Electrode
It is recommended the ORP electrode be replaced every 6 to 12
months or as needed. Some applications can severely limit
the life span of an ORP electrode.
1. Unscrew the electrode collar to
remove the electrode & ATC
assembly as shown in the right
figure.
2. Remove the old electrode from
the
electrode collar.
3. Insert a new electrode, make sure the electrode fit back into the
meter correctly.
4. Screw back the electrode collar.
7
ERROR DISPLAYS AND TROUBLESHOOTING
ORP
LCD
Display
Any
Value
ATC
Display
DISPLAY
Mode
Possible cause(s)
[Action(s)]
"OVER"
or
“UNDER”
Measure
a. Temperature outside –10.0 to +
100.0°C range.
[Bring solution to a lower/higher
temperature.]
b. Bad sensor.
[Replace new electrode module .]
ORP value outside -1100 to +1100
mV value.
[Clean or Replace electrode]
"OVER"
-10.0~
or
100.0°C
"UNDER"
Measure
SPECIFICATIONS
ORP
Absolute Range
-1100 to +1100mV
Temperature
Range
-10.0 to 100.0 °C
14.0 to 212.0 ℉
Resolution
1 mV
Accuracy
1 mV ± 1 LSD
Resolution
0.1 °C
0.2 ℉
Accuracy
±0.3 °C
±0.6℉
ORP
Relative ORP calibration range
–999 to 999 mV
Input impedance
>1012 (User programmable)
Temperature
Temperature sensor
Temperature unit
Thermistor, [email protected] 25°C
Default in factory (°C or ℉)
General
Power
Meter : LR44 x 4
Calendar : CR2032
Meter:
200 Hours
Calendar: 5 years
0.0 to 50.0 °C
98x64 graphic LCD
IP67 water-tight Case
107 g
Battery life
Ambient temperature range
Display
Case
Weight
8
WARRANTY
Jenco Instruments, Ltd. warrants this product to be free from
significant deviations in material and workmanship for a period of 1
year for the meter and 6 months for the electrode from date of
purchase. If repair or adjustment is necessary and has not been the
result of abuse or misuse, within the warranty period, please returnfreight-prepaid and the correction of the defect will be made free of
charge. If you purchased the item from our Jenco distributors and it
is under warranty, please contact them to notify us of the situation.
Jenco Service Department alone will determine if the product
problem is due to deviations or customer misuse.
Out-of-warranty products will be repaired on a charge basis.
RETURN OF ITEMS
Authorization must be obtained from one of our representatives
before returning items for any reason. When applying for
authorization, have the model and serial number handy, including
data regarding the reason for return. For your protection, items must
be carefully packed to prevent damage
in shipment and insured against possible damage or loss. Jenco
will not be responsible for damage resulting from careless or
insufficient packing. A fee will be charged on all authorized
returns.
NOTE: Jenco reserves the right to make improvements in design,
construction and appearance of our products without notice.
(Version:08182009)
9
JENCO INSTRUMENTS, INC.
7968 Arjons Drive, Suite C
San Diego, CA 92126 USA
TEL: 858-578-2828
FAX: 858-578-2886
E-Mail: [email protected]; [email protected]
Website: www.jencoi.com
JENCO ELECTRONICS, LTD.
P.O. BOX 117 Jhong Jheng RD, Linkou Shiang,
Taipei, Taiwan
TEL: (886-2)2601-6191
FAX: (886-2)2601-7206
E-Mail:[email protected]
SHANGHAI JENCO INSTRUMENTS, LTD.
18 Wang Dong Zhong RD,Sijing Town, Songjiang
Shanghai, China
TEL: 86-21-5761-9599
FAX: 86-21-5761-9598
E-Mail:[email protected]
Website:www.jenco.com.cn
10
使用说明书(英文)
机型:628N
编制:TC CHEN
日期:2008-12-30
文件编号:K628N-01
修改:杨启娜
日期:2009-8-17
版本:01
核准:杨健寿
日期:2009-8-18
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