Landtek PH-ORP 2000 User manual

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PH-ORP 2000
This PH-ORP 2000 is small in size, light
in weight, easy to carry. Although
complex and advanced, it is convenient
to use and operate. Its ruggedness will
allow many years of use if proper
operating techniques are followed.
Please read the following instructions
carefully and always keep this manual
within easy reach.
The controller can be used for applications such as
water treatment and monitoring, galvanic-
decontamination, chemical processing, food
processing, clean or wastewater control and
neutralization processes. Though the construction
of the pH/ORP Controller complies with safety
regulations currently in force, improper use could
lead to hazards for the user or a third-party.
Therefore, the operating instructions must be read
and understood by the persons involved before
1.INTRODUCTION
2.SPECIFICATIONS
work is started with the pH/ORP controller.
Measurement 0-14pH/1mV、-1000-1000mV
Range
Display LCD
Accuracy 0.01pH、1mV
Output
Optional DC 4-20 mA, Max. Load 1k
Control Action
ON/OFF Max 220VAC / Max 3A /
Calibration 2 Points
Environment 0-60℃
Max 600VA
Cut opening size 92x92x110mm
Power Supply 220V AC 50Hz or 110v AC 60Hz
Net weight 0.2Kg
1
section. Input the hysteresis value (dead band)
on the auxiliary section by Pressing the up key
or down key . e.g. to control the ORP value
between 500-600 by adding water, just set
LoAL to ＂500＂, and lb to ＂100＂.
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10.1 it is recommended to wash the electrode
every 2 weeks.
10.2 Maintenance schedules are based upon the
frequency of use and the severity of the
conditions.
10. GENERAL MAINTENANCE
11. ELECTRICAL CONNECT DIAGRAM
Monitor/controller's environment and operating
High set relay resting position (NC)
High set relay working position (NO)
Low set relay resting position (NC)
High set relay common
Low set relay working position (NO)
Low set relay common
220V AC live wire
220V AC neutral wire
PH/ORP(Potential matching pin)
PH/ORP(Shield)
1
2
3
4
5
6
7
8
9
10
N
O. CONNECTION
8

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10. GENERAL MAINTENANCE
11. ELECTRICAL CONNECT
DIAGRAM
1.INTRODUCTION
2.SPECIFICATIONS
3.FRONT PANEL
DESCRIPTIONS
4.ASSEMBLY AND
INSTALLATION
5. MENU OPERATION
DIAGRAM
6.PH CALIBRATION
7.ORP CALIBRATION
8.HIGH AND LOW SETTINGS
FOR PH CONTROLLER
9.HIGH AND LOW SETTINGS
FOR ORP CONTROLLER
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TABLE OF CONTENTS
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section. Input the hysteresis value (dead band)
on the auxiliary section by Pressing the up key
or down key . e.g. to control the Ph value
between 5-7 by adding alkali, just set LoAL to
＂5＂, and lb to ＂2＂.
8.4 Press the key and lb shows on the main
M
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9.HIGH AND LOW SETTINGS FOR ORP
The High setting determines the operating
parameters for Relay High; while low setting
defines the operating parameters for Relay Low.
HiAL on the upper section of the Display. It
takes about 3 second from pressing the M key.
Then Press the up key or down key to
adjust the digit on the auxiliary section to the
desired value which controls the relay HIGH
output.
section. Input the hysteresis value (dead band)
on the auxiliary section by Pressing the up key
between 70-150 by adding natrium sulphide,
just set HiAL to ＂150＂, and hb to ＂80＂.
section. Then Press the up key or down key
to adjust the digit on the auxiliary section
to the desired value which controls the relay
LOW output.
9.1 Press the M key and not release it until the
9.2 Press the M key and hb shows on the main
9.3 Press the M key and LoAL shows on the main
9.4 Press the M key and lb shows on the main
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or down key . e.g. to control the ORP value
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CONTROLLER
7
No connection
No connection
4~20mA+ ,optional
4~20mA- ,optional
110V AC live wire
110V AC neutral wire
11
12
13
14
15
16
N
O. CONNECTION
9
Optional probes
Model number Cases
PH-200 Industrial process
Highly polluted process and
waste water
Anti- HF electrode
Cases of high temp or high
pressure or leavening
3.FRONT PANEL DESCRIPTIONS
M
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L: LED for Low-setting alarm
H: LED for High-setting alarm
: MENU key
: Up key
: Down key 2
1
2
5
6
7
8
1
4
4
4
8
L
H
PH/ORP CONTROLLER
PH/ORP-2000
M
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Auxiliary
section
Main section
PH-201
PH-202
PH-203
PH-210 ORP

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7.1 Clean the ORP electrode with de-ionized or
distilled water.
7.2 Place the electrode in the mv buffer solution.
7.3 When display stabilizing, check if the
reading on the display is close to the standard
value of mv solution. If the error lies in ±35
mv. If yes, indicates the electrode tested can
still be used. If not, replace it by new one.
The High setting determines the operating
parameters for Relay High; while low setting
defines the operating parameters for Relay Low.
8.HIGH AND LOW SETTINGS FOR PH
HiAL on the upper section of the Display. It
takes about 3 second from pressing the M key.
Then Press the up key or down key to
adjust the digit on the auxiliary section to the
desired value which controls the high relay
output.
section. Input the hysteresis value (dead
band) on the auxiliary section by Pressing the
up key or down key . e.g. to control the PH
value between 9-10 by adding acid, just set
HiAL to ＂10＂, and hb to＂1＂.
section. Then Press the up key or down key
to adjust the digit on the auxiliary section
to the desired value which controls the low
relay output.
8.1 Press the M key and not release it until the
8.2 Press the M key and hb shows on the main
8.3 Press the M key and LoAL shows on the main
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CONTROLLER
6
Carefully unpack the instrument and accessories.
Inspect for any damages made in shipment. The
Controller shall be installed and operated only in
the manner specified in the Instruction manual.
Only skilled, trained or authorized person should
carry out installation, setup and operation of the
4.ASSEMBLY AND INSTALLATION
instrument.
Please follow steps below.
A.Installation of composite electrode.
b.Installation of PH/ORP controller
c.Connect the probe to the controller by an
appropriate cable.
d.Connect the pump or electromagnetic valve
e.Power on the controller
f.Calibrate the controller using the standard
sample.
g.Set the control limits
PH/ORP
A/PH
RP
A/R
A typical system is shown bellow.
A/PH: a Relay contact inside of the PH/ORP
controller
A/R: a contact of the power relay
3
R: a power replay
P: pump or valve
M (3 s)
M
Hb/0.00
LoAL/0.00
Lb/0.00
CS/0
CH/20.00
Fun/PH
CAL/......
Display
HiAL/0.00
M
M
M
M
M
M
Low limit, adjusted by the up key or down
Hysteresis value (Dead Band) for High limit,
adjusted by the up key or down key
High limit, adjusted by the up key or down
Hysteresis value (Dead Band) for Low limit,
adjusted by the up key or down key
Set value for manual temp. Compensation
adjusted by the up key or down key
Indication of current use: PH or ORP
changed by the up key or down key
2-point calibration
please refer to Calibration part for detail.
Status key
Key
=0: without temperature compensation
=1:
=2:
manual temperature compensation
automatic temperature compensation
Auxiliary value
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5. MENU OPERATION DIAGRAM
6.PH CALIBRATION
6.1 Clean the pH electrode and temperature probe
6.2 Place the electrode in the first buffer(PH6.86)
solution. In ATC mode, you must also immerse
with de-ionized or distilled water.
4
M
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temperature probe in the buffer solution.
just press the M key and not release it until the
HiAL on the upper part of the Display. It takes
about 3 second from pressing the M key. Then
press and release the M key till CAL on
the main section and ---- on the auxiliary
the
6.3 When the reading on the display is stabilizing,
section.
6.4 Press the up key or down key to select P1
shows on the auxiliary section.
6.5
adjust to 6.86 by the up key or down key .
6.6 Press key and 6.86 shows on the main
section.
6.7 Press the up key or down key to select
yes shows on the auxiliary section.
6.8 Press the M key and P1 shows on both main
and auxiliary sections.
6.9 After a second, CAL shows on the main
section and ---- on the auxiliary section.
above procedures makes P1 calibration ok.
6.10 Repeat steps from 6.1 to 6.9, just change the
PH buffer (standard) to PH4.00 (or 9.18), and
P2 replacing P1 to complete the P2 calibration.
And 6.86 on the auxiliary section. if not 6.86,
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section and no shows on the auxiliary
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7.ORP CALIBRATION
To calibrate ORP electrode does not need PH
buffer instead of mv buffer to test if the ORP
electrode is still workable.
5
M
Press the key, and P1 shows on the main section