IM 12B6J3-E-H
5th edition
Instruction
Manual
Model PH20 & FU20
pH/ORP Combination sensor
YOKOGAWA
IM 12B6J3-E-H
TABLE OF CONTENTS
1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1-1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1-2. Unpacking and Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1-3. Warranty and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
2. General Specifications PH20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2-1. Measuring elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2-2. Construction materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2-3. Functional specifications (at 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2-4. Dynamic specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2-5. Operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
3. Installation Site PH20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3-1. Installation Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3-2. Preparing the Sensor for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3-3. Mounting the Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
4. General Specifications FU20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4-1. Measuring elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4-2. Construction materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4-3. Functional specifications (at 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4-4. Dynamic specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4-5. Operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
5. Installation Site FU20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
5-1. Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
5-2. Preparing the Sensor for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
5-3. Mounting the Sensor into the Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
6. Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
6-1. Conventional pH (& ORP) Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
6-2. Wiring for ORP measurement with normal reference . . . . . . . . . . . . . . . . . . . . . . .12
6-3. Wiring for ORP measurement with pH reference . . . . . . . . . . . . . . . . . . . . . . . . . .12
7. General Calibration & Maintenance Procedure . . . . . . . . . . . . . . . . . . . . . . . . .13
7-1. Calibration for pH measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7-2. Calibration for ORP measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
7-3. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
8. Model Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
9. Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
IM 12B6J3-E-H
IM 12B6J3-E-H
1
1. GENERAL
1-1. INTRODUCTION
This instruction manual provides information
for the installation and use of the FU20 and
PH20, four-in-one wide body pH sensors.
While both sensors can be used in a variety
of applications, in general, the FU20 is the
choice for the majority of typical wastewater
and process applications. The PH20 with its
patented "compensation panels", is selected
when more aggressive chemicals (PVDF
body) or varying process temperatures and
pressures are present.
The Model PH20 is patented design, provides continuous compensation for temperature and pressure changes in the process
resulting in an extremely accurate and stable
measurement. With this one sensor, pH,
redox (ORP) and temperature can be measured simultaneously. The PH20 can be easily
installed using a variety of adapters in
Stainless Steel or PVDF. You can choose
from a common 3/4" or 1" NPT threaded
connection or select the optional (/SF4)
stainless adapter that allows the use of
Yokogawa’s FF40, FS40 or FD40 sensor
holders.
The Model FU20 offers a simple and cost
effective solution for a wide variety of wastewater and process applications. This all-inone sensor provides simultaneous measurement of pH, redox (ORP) and temperature if
desired. The rugged Ryton body is designed
for easy installation into on-line and immersion applications via the 3/4" NPT threaded
connections provided on both ends of the
sensor. Optional quick-removal adapters in
both stainless steel and titanium are available
to make calibration and maintenance even
easier.
Both the PH20 and FU20 include an integral
cable of optional lengths designed to minimize the adverse affects of noise can have on
the measurement. This cable is pre-finished
to make connection to any industrial pH instrument as simple as possible.
1-2. Unpacking and Checking
Upon delivery, unpack the sensor carefully
and inspect it to ensure it was not damaged
during shipment. If damage is found, retain
the original packing materials (including outer
box) and then immediately notify the carrier
and the relevant Yokogawa sales office.
Make sure the Model Code on the sensor is
the same as on the packing list. Also, check
any option(s) that were ordered are included
and correct. The PH20 sensor has an identification number on the cable with the full
Model Code and a Serial Number included
1-3. Warranty and Service
Yokogawa products and parts are guaranteed free from defects in workmanship and
material under normal use and service for a
period of (typically) 12 months from the date
of shipment from the manufacturer. Individual
sales organizations can deviate from the typical warranty period, and the conditions of
sale relating to the original purchase order
should be consulted. Damage caused by
wear and tear, inadequate maintenance, corrosion, or by the effects of chemical processes are excluded from this warranty coverage. In the event of warranty claim, the defective goods should be sent (freight paid) to the
Service Department of the relevant sales
Organization for repair or replacement (at
Yokogawa’s discretion). The following information must be included in the letter accompanying the returned goods:
1. Part Number, Model Code and Serial
Number.
2. Original Purchase Order and Date.
3. Length of time in service and description
of the process.
4. Description of the fault and circumstances
of the failure.
5. Process/environmental conditions that
may be related to the failure of the sensor
6. Statement as to whether warranty or nonwarranty service is requested.
7. Complete shipping and billing instructions
for return of material, plus the name and
phone number of a contact person that
can be reached for further information.
Returned goods that have been in contact
with process fluids must be decontaminated
and disinfected prior to shipment. Goods
should carry a certificate to this effect, for the
health and safety of our employees. Material
Safety Data sheets must be included for all
components of the process to which the
sensors/fittings have been exposed.
IM 12B6J3-E-H
2
2. GENERAL SPECIFICATIONS PH20
2-1. Measuring elements : pH glass electrode
: Silver chloride reference
: Solid platinum electrode
: Pt1000 temperature sensor.
2-2. Construction materials
Body : PVDF
Earthing pin : Solid Platinum
O-ring : Viton
Reference junction : Porous PTFE
Cable : Coaxial with 4 extra leads
2-3. Functional specifications (at 25°C)
Isothermal point : pH 7
Glass impedance : 200 MΩ (nominal)
Reference system : Ag/AgCl with saturated KCl
Junction resistance : 1 to10 kΩ
Temperature element : Pt1000 to IEC 751
Asymmetry potential : < 15 mV
Slope : > 96 % (of theoretical value)
NOTE:
The temperature sensor included in the PH20 is intended to provide indication and cell
compensation. The construction has not been tested to the pressure vessel standards
required for plant temperature control.
2-4. Dynamic specifications
Response time pH step (7 to 4) : < 10 sec for 90%
Response time temp step (10°C) : < 3 min for 90 %
Stabilisation time (0.02 pH unit/ 10 s) : < 1 minute
2-5. Operating range
pH : 0 to 14
Temperature : -10 to 100 °C (14 to 212 °F)
Pressure : 0 to 10 bar ( 0 to 145 PSIG)
Conductivity : > 50 µS/cm
Storage temperature : -30 to 50 °C (-22 to 122 °F)
NOTE:
Specifications should not be considered in isolation. For example the pH range can be 2-12
pH, where the measurement is at elevated temperatures. For advice about specific applications please contact your local sales office.
Pressure Effects on sensor mV
Conventional Sensor
Pressure
potential (m V)
Tempress
-180
-200
-220
-240
-260
-280
-300
200 250 300
time (min)>
15
10
5
0
pressure (bar)
The erratic trend of the standard sensor shows
the progressive contamination of its reference
junction. The graph indicates between 0.1 to 0.4
pH error with the conventional sensor while the
readings from the Tempress are extremely stable.
IM 12B6J3-E-H
3
3. INSTALLATION OF PH20
For optimum measurement results, the PH20
should be installed in a location that offers an
acceptable representation of the process
composition and DOES NOT exceed the
specifications of the sensor. The PH20 is
designed with threads on either end of the
body to allow installation via a selection of
adapters, in a wide variety of applications.
3-1. Typical Installation
The PH20 sensor is designed for in-line
installation, via a bypass loop as an immersion assembly. For best results the PH20
should be mounted with the process coming
towards the sensor (see Fig 1) and positioned at least 15° above the horizontal plane
to eliminate air bubbles in the glass bulb.
3-2. Preparing the Sensor for Use
Remove the sensor from its shipping box
and slide off the "wet pocket" (the tube filled
with solution to keep the measuring elements from drying out in storage or shipment).
Two sets of O-rings are provided with the
sensor, a Viton set and an EPDM set. The
wet pocket is sealed on the sensor with (2)
Viton O-rings (K1511DP is 5 sets of 2 each
Viton O-rings). An EPDM set is supplied in a
plastic bag as an alternative (K1511DQ is 5
sets of 2 each EPDM O-rings).
IMPORTANT NOTICE
Before installing the sensor in the process it
should be calibrated. The calibration procedure is normally described in the instrument
Instruction Manual, but a general Guide is
provided in Section 7.
3-3. Mounting the Sensor
Apply Teflon (PTFE) tape to the threaded end
of the appropriate adapter (step 2). Then
install the selected adapter (/FN4, /FR4,
/SNE, /SR3) in the process, tightening it by
applying a suitable torque using a spanner
on the adapter flats see Steps 1 & 3).
Next, screw the PH20 sensor into the adapter making sure that there are (2) O-rings
mounted in the correct grooves (step 4).
These O-rings form a seal on the straight
section inside the adapter. This means that
the sensor needs only to be hand tightened,
(until the O-rings are completely covered) for
the seal to be completed (step 5).
NOTE 1:
DO NOT over tighten the sensor, as damage
may result.
NOTE 2:
Installing the PH20, requires approximately
seven turns. Take care, to leave enough
slack so that the cable is not twisted and
damaged.
If you are using one of the FF40, FS40 or
FD40 holders, simply screw the adapter
(/SF4) on the sensor body at the cable end
ensuring the O-rings are correctly installed.
See Section 6 for instructions to wire the
sensor to the instrument.
15º Minimum
Figure 1. Sensor Installation
Wrench
Flats
Teflon Tape
Process Flow
Do NOT
overtighten
Hand
tighten
Sealing
O-rings
4
2
tape
3
5
1
IM 12B6J3-E-H
4
O-rings (2x)
O-rings (2x)
/FN4
/FR4
/SN3
/SR3
/FN4
/FR4
/SN3
/SR3
Figure 2. Adapters for the PH20
IM 12B6J3-E-H
5
2
2
0
.5
(8
.6
8
"
)
1
7
0
(6
.7
0
"
)
1
9
0
.4
(7
.5
0
"
)
ISO
228/1-G3/4
IS
O
2
2
8
/
1
-G
3
/4
Ø 22 (0.86")
9
0
(3
.5
4
"
)
Unit: mm (inches)
Figure 4. Dimensions of the sensor
Using the /SF4 adapter, the PH20 can
be mounted in the standard range of
conductivity flow fitting and sub-assemblies. The adapter can be mounted on
the front thread or the back dependent
on the required insertion depth.
Figure 3. Installation Examples using the /SF4 adapter
/SF4 adapter
FS40-S22-WE
FS40-S22-TP
Front- and backend mounting
in the FF40
Sensor
cable
Plug-in
sensor
IM 12B6J3-E-H
6
1" NPT
Ø 36.0 (1.42")
Ø 30.0 (1.18")
45 (1.77")
25.2 (1.0")
ISO 228/1-G3/4"
3/4" NPT
Ø 36.0 (1.42")
Ø 30.0 (1.18")
45 (1.77")
25.2 (1.0")
20.0 (0.8")
ISO 228/1-G3/4"
ISO 228/1-G3/4"
Ø 36.0 (1.42")
15 (0.6")
30 (1.18")
Ø 30 (1.18")
/SN3 (3/4” NPT) and /SR3 (3/4” R)
/FN4 (1” NPT) and /FR4 (1”R)
/SF4 Adapter for FF40, FS40 and FD40 fittings
/PH8 Adapter for PH8 Combi Sensor fittings (only)
Unit: mm (inches)
Figure 5. Dimensions of the adapters
Ø 38.0 (1.50")
Ø 30.0 (1.18")
ISO 228/1-G3/4"
Ø 31 (1.22")
29.5 (1.16")
15 (0.6")
IM 12B6J3-E-H
7
4. GENERAL SPECIFICATIONS FU20
4-1. Measuring elements : pH glass electrode
: Silver chloride reference
: Solid platinum electrode
: Pt1000 temperature sensor.
4-2. Construction materials
Body : PPS 40GF (Ryton) with glass filling
Earthing pin : Solid Platinum
O-ring : None
Reference junction : Porous PTFE
Cable : Coaxial with 4 extra leads
4-3. Functional specifications (at 25°C)
Isothermal point : pH 7
Glass impedance
- Dome shape : 250 to 500 MΩ
- Flat Surface : 400 to 1000 MΩ
Reference system : Ag/AgCl with saturated KCI
Junction resistance : 0.5 to 5 kΩ
Temperature element : Pt1000 to IEC 751
Asymmetry potential : < 15 mV
Slope : > 96 % (of theoretical value)
NOTE:
The temperature sensor included in the FU20 is intended to provide indication and cell
compensation. The construction has not been tested to the pressure vessel standards
required for plant temperature control.
4-4. Dynamic specifications
Response time pH step (7 to 4) : < 15 sec for 90%
Response time temp step (10°C)
- Dome shape : < 3 min for 90%
- Flat Surface : < 6 min for 90%
Stabilisation time (0.02 pH unit/ 10 s) : < 2 minutes
4-5. Operating range
pH : 0 to 14
Temperature : -10 to 105 °C (14 to 221 °F)
Pressure : 0 to 10 bar ( 0 to 145 PSIG)
Conductivity : > 50 µS/cm
Storage temperature : -30 to 50 °C (-22 to 122 °F)
NOTE:
Specifications should not be considered in isolation. For example the pH range can be
2-12 pH, where the measurement is at elevated temperatures. For advice about specific
applications please contact you local sales office.
IM 12B6J3-E-H
5. INSTALLATION OF FU20
For optimum measurement results, the
FU20 should be installed in a location that
offers an acceptable representation of the
process composition and DOES NOT
exceed the specifications of the sensor.
The FU20 is designed with threads on
either end of the body 3/4" NPT or ISO 7/1
–R 3/4) to allow installation in a wide variety
of applications.
5-1. Typical Installation
The FU20 sensor is designed for in-line
installation, via a bypass loop as an
immersion assembly. For best results the
FU20 should be mounted with the process
coming towards the sensor (Fig 7) and
positioned at least 15° above the horizontal
plane to eliminate air bubbles in the glass
bulb.
5-2. Preparing the Sensor for Use
Remove the sensor from its shipping box
and slide off the "wet pocket" (the tube
filled with solution to keep the measuring
elements from drying out in storage or
shipment).
IMPORTANT NOTICE
Before mounting the sensor, it should be
calibrated. The calibration procedure is
normally described in the Instruction
Manual of the pH transmitter, but a general
calibration is given in section 7 of this
manual.
5.3 Mounting the Sensor
The FU20 can be mounted using the threads on the body of the sensor (Fig. 6).
Apply Teflon tape to the appropriate
threaded end, then install in the process.
The FU20 can also be mounted using the
threaded end of the quick release adapter.
Apply Teflon (PTFE) tape to the threaded
end of the quick release adapter (step 2).
Then install the adapter (/NSS, /NTI, /BSP
or /BTI) in the process, tightening it by
applying a suitable torque using a spanner
on the adapter flats, steps 1 & 3.
8
Next, slide the mating part of the adapter
from the cable end of the FU20 (step 4)
sensor and mount into the adapter making
sure that the O-ring seats properly (step 5
& 6). Hand tightened the adapter nut (step
7).
NOTE:
DO NOT over tighten the sensor, as damage may result.
See Section 6 for instructions to wire the
sensor to the instrument.
FU20
TeflonTape
FU20
Figure 6. Sensor Installation
IM 12B6J3-E-H
9
Wrench Flats
Teflon Tape
Process Flow
Do NOT
overtighten
Figure 7. Sensor & adapter Installation
Teflon Tape
IM 12B6J3-E-H
10
FU20
O-ring
Fitting
Adapter
( /FPS )
O-ring
/HCNF, SPRAY CLEANER
FU20 + ADAPTERFU20 + FD40
Figure 8. Installation examples for the FU20
Process
Flow
/SN3
/SR3
/FN4
/FR4
Cleaning
Solution
(water, acid, etc.)
IM 12B6J3-E-H
11
3/4" TAPERED THREAD
3/4" TAPERED THREAD
22.5 (0.89")
19.7 (0.78")
19.7(0.78")
Ø 26.0 (1.02")
1” NPT or ISO 7/1-R1
51.0 (2.3")
150.0 (5.9")
10.0 (0.39")
Ø 22.0 (0.86)
Ø 35.5 (1.4")
Ø 39.0 (1.54")
99.0 (3.9")
25.0 (1")
1” NPT or
ISO 7/1-R1
Ø 30.0 (1.18")
Ø 30.0 (1.18")
Ø 36.0 (1.42")
10.0 (0.4")
5.0 (0.2")
3
5
.0
(1
.3
8
"
)
Figure 9. Dimensions FU20
Figure 10. Dimensions 1” FU20 adapter Stainless Steel & Titanium
Figure 11. Dimensions FU20 adapter for FF40, FS40 and FD40 fittings
-NPT
/NSS, /NTI, /BSP, /BTI
-FSM
/NSS, /NTI, /BSP, /BTI
/FPS
IM 12B6J3-E-H
12
TEMPERATURE
TEMPERATURE
REFERENCE
REFERENCE SCREEN
SOLUTION GROUND
Pt (ORP Measure)
GLASS SCREEN
(11)
(12)
(13)
(17)
(14)
(15)
(16)
16 15
11
12
13
14
(Not used)
T2
T1
RE
SE
GE
S
ORP WIRING DIAGRAM with normal reference
TEMPERATURE
TEMPERATURE
REFERENCE (pH)
REFERENCE SCREEN
(SOLUTION GROUND)
Pt (ORP Measure)
GLASS SCREEN
(11)
(12)
(13)
(17)
(14)
(15)
(16)
13
11
12
15
14
(Not used)
16
T2
T1
RE
SE
GE
S
ORP WIRING DIAGRAM with pH sensor as reference
TEMPERATURE
TEMPERATURE
REFERENCE
REFERENCE SCREEN
SOLUTION GROUND
GLASS (Measure)
GLASS SCREEN
(11)
(12)
(13)
(17)
(14)
(15)
(16)
11
12
13
14
16
T2
T1
RE
SE
GE
S
15
pH (& ORP) WIRING DIAGRAM
6. WIRING
6-1. Conventional pH (& ORP) Wiring
Connect the PH20 or FU20 to the EXA or
EXAxt PH Analyzer as shown (Fig 12). With
this configuration, it is possible to measure
ORP (or rH) at the same time (Refer to the
EXA or EXAxt Manual for appropriate impedance jumper and Service Code settings).
6-2. Wiring for ORP measurement with
normal reference
Connect the PH20 or FU20 to the EXA or
EXAxt PH Analyzer as shown (Fig 13).
Refer to the EXA or EXAxt Manual for
appropriate impedance jumper and Service
Code settings).
6-3. Wiring for ORP measurement with
pH reference
Connect the PH20 or FU20 to the EXA or
EXAxt PH Analyzer as shown (Fig 14).
Refer to the EXA or EXAxt Manual for
appropriate impedance jumper and Service
Code settings).
Figure 12.
Figure 13.
Figure 14.
IM 12B6J3-E-H
13
7. GENERAL CALIBRATION &
MAINTENANCE PROCEDURE
7-1. Calibration for pH measurement
To calibrate a pH sensor, two buffer solutions with known pH values are required. It
is recommended that one buffer solution
have a value near to pH 7.00. Depending
on the process value to be measured, the
second buffer solution should be either acidic (below 7.00) or alkaline (above 7.00)
area. Normally, the IEC buffers (4.01, 6.87
and 9.18) are used.
The following is a very general 2-point calibration procedure.
1. Clean the sensor (deposits may be
removed using a 5% (approximate) solution of HCL).
2. Rinse sensor thoroughly with clean
water.
3. Immerse the sensor in the first buffer
(6.87 pH is recommended).
4. Refer to appropriate Instrument
Instruction Manual for Calibration procedures (Auto; Manual; Sample, etc.),
5. Rinse sensor thoroughly with clean
water.
6. Immerse the sensor in the second buffer
(4.01 or 9.18 recommended).
7. Repeat Step 4.
During calibration the temperature compensation should be active. The instrument
automatically compensates for the sensitivity change of the pH sensor at different
temperatures. After calibration is complete
replace or re-install the sensor into the process.
7-2. Calibration for ORP measurement
For ORP calibrations the same procedure
and buffer solutions pH 6.87 and pH 4.01
are to be used. When 1-20 grams (±1 teaspoon) quinhydrone is added to each
buffer, it will produce a stable redox potential of 96 mV and 265 mV respectively.
Mostly only 1-point calibrations are performed. Some analyzers also have the possibility to adjust the slope (2-point calibration).
7-3. Maintenance
All pH sensors require routine maintenance
to keep the measuring elements clean and
functioning. Depending on the process,
different cleaning solutions may be required.
EXAMPLES:
1. Deposits of limes, hydroxides or carbonates can be removed by immersing the
sensor in a solution containing dilute
hydrochloric acid (5% is recommended).
Afterwards rinse with water.
2. Deposits of oil and fat can be removed
with hot water in conjunction with a
detergent. When the results are unsatisfactory, a mild (carbonate based) abrasive can be used.
3. Protein deposits should be removed with
a protein enzymatic solution. For instance a solution containing 8.5ml concentrated hydrochloric acid and 10 grams of
pepsin in 1 liter of water will do.
After cleaning the probe is reinserted into
the process by following the reverse procedure.
NOTE:
Avoid using non-polar solvent like tri-chloro
ethylene, toluene or hexane. Cleaning with
iso-propanol or methanol is acceptable.
The non-polar solvents will break up the
gel-layer on the glass bulb and requires
that the electrode to be soaked in water for
at least 12 hours before functioning normally again.
The Teflon (PTFE) diaphragm of the sensor
can sometimes be regenerated by putting
it in hot (60 to 80°C) 3 molar Potassium
Chlorine (KCL) solution and letting it cool to
room temperature. This procedure clears
the junction of process material and then
"draws" the conductive (KCL) back into the
junction.
IM 12B6J3-E-H
14
Model Suffix Option Description
Code code
PH20 4-in-1 pH/ORP sensor
Material -F PVDF
Membrane -G Dome shaped
Cable length -02 2 mtr
-05 5 mtr
-10 10 mtr
-20 20 mtr
-30 30 mtr
Temp. element -T1 Pt1000
-N -A Always -N -A
Options /SN3 3/4” NPT adapter, SS (316L)
/SR3 3/4” R adapter, SS (316L)
/FN4 1” NPT adapter, PVDF
/FR4 1” R adapter, PVDF
/PH8 Adapter for PH8 combi sensor fittings (only)
/SF4 Stainless steel adapter for FF40, FS40 and
FD40 fittings
/HCNF Hastelloy cleaning system
Model Suffix Option Description
Code code
FU20 Wide body sensor
Cable length -03 3 mtr
-05 5 mtr
-10 10 mtr
-20 20 mtr
Temp. element -T1 Pt1000
Model -NPT Dome shape model
-FSM Flat surface model
Options /Q Quality Inspection Certificate
/HCNF Hastelloy cleaning system
/FPS Adapter F*40 from noryl
/NSS 1” NPT adapter, SS (316L)
/NTI 1” NPT adapter, Titanium
/BSP 1” BSP adapter, SS (316L)
/BTI 1” BSP adapter, Titanium
8. MODEL CODES
IM 12B6J3-E-H
15
9. SPARE PARTS
Spare part Description
FU20
K1523DC /FPS Adapter for FF40, FS40 and FD40 fittings (PPO)
K1547PK /NSS 1” NPT, Stainless Steel adapter (Viton O-ring)
K1547PL /BSS ISO 7/1-R1, Stainless Steel adapter (Viton O-ring)
K1547PM /NTI 1” NPT, Titanium adapter (Viton O-ring)
K1547PN /BTI ISO 7/1-R1, Titanium adapter (Viton O-ring)
K1500 FR Viton O-rings 29.82*2.62 (5 pcs) for 1” adapter
K1500FS EPDM O-rings 29.82*2.62 (5 pcs) for 1” adapter
K1500FT Silicone O-rings 29.82*2.62 (5 pcs) for 1” adapter
PH20
K1547PC /FN4 1" NPT adapter, PVDF
K1547PD /FR4 1" R adapter, PVDF
K1547QA /SN3 3/4" NPT adapter, SS (316L)
K1547QB /SR3 3/4" R adapter, SS (316L)
K1547PE /PH8 Adapter for Combi Sensor, PVDF
K1547QF /SF4 Stainless steel adapter for FF40, FS40 and FD40 fittings
K1511DP Viton O-rings 21.9*2.62 (5 set of 2 pcs)
K1511DQ EPDM O-rings 21.9*2.62 (5 set of 2 pcs)
Cleaning system for FU20 & PH20
K1547PJ Hastelloy cleaning system (HCNF)
K1547PG Hastelloy nozzle and mounting set (HCNF)
K1547PH Nylon tube (10 metre) and tube mounting set for chemical
cleaning system
Buffer powder
6C231 Buffer powder pH 1.68 ; IEC746-2
6C232 Buffer powder pH 4.01 ; IEC746-2
6C236 Buffer powder pH 9.18 ; IEC746-2
6C237 Buffer powder pH 6.87 ; IEC746-2
Tester
QT20 pH/ORP input simulator with carrying case and cables
Connection equipment
BA10 Junction box for pH extension cables
WF10-XXX-F pH signal cable with terminated ends. Specify length in whole
meters (e.g. XXX = 020)
IM 12B6J3-E-H Printed in The Netherlands, 05-112 (A) Q
Subject to change without notice
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