SR20-AC22電極
SR20、SR20D、SR20C
豐富的標準Ryton材質的pH/ORP傳感器以及傳感器產品系列，適用于各種應用。同時提供各種傳感器支架。
SR20、SR20D、SR20C系列電極傳感器：
SR20-AC22、SR20-AC24、SR20-AC26、SR20-AC11、SR20-AC32、SR20-AC52
SR20-AP22、SR20-AP24、SR20-AP26、SR20-AP11、SR20-AP32、SR20-AP52
SR20-AS22、SR20-AS24、SR20-AS26、SR20-AS11、SR20-AS32、SR20-AS52
SR20D-AC22、SR20D-AC24、SR20D-AC26、SR20D-AC11、SR20D-AC32、SR20D-AC52
SR20D-AP22、SR20D-AP24、SR20D-AP26、SR20D-AP11、SR20D-AP32、SR20D-AP52
SR20D-AS22、SR20D-AS24、SR20D-AS26、SR20D-AS11、SR20D-AS32、SR20D-AS52
SR20C-AC22、SR20C-AC24、SR20C-AC26、SR20C-AC11、SR20C-AC32、SR20C-AC52
SR20C-AP22、SR20C-AP24、SR20C-AP26、SR20C-AP11、SR20C-AP32、SR20C-AP52
SR20C-AS22、SR20C-AS24、SR20C-AS26、SR20C-AS11、SR20C-AS32、SR20C-AS52
PH電極傳感器系列：SM21、SM21D、SR20、SR20D、SR20C、SC21、SM29、SC29、SM60
The heart of a pH measuring loop is the electrode system.
Yokogawa has designed a wide range of electrodes to ensure
this heart keeps beating under the most severe conditions.
The dimensions and design meet the requirements of DIN 19263
（excluding the refillable types）. A high degree of standardisation
makes it possible to mount any electrode in the standard
program of fittings.
The combination electrode plug and cable socket is watertight
ａnd temperature is resistant up to 125ºC. It meets the
requirements of IP65.
Colour coded strips on electrode and cable and clear
identification of sensor specifications make incorrect installation
virtually impossible.
普通型：SM21-AG2、SM21-AG4、SM21-AG6、SM21-AL2、SM21-AL4、SM21-AL6
高溫型、耐化學腐蝕：SM21D-AG2、SM21D-AG4、SM21D-AG6、SM21D-AL2、SM21D-AL4、SM21D-AL6
GENERAL
Yokogawa’s process pH and ORP meters are highly reliable and feature advanced functions which are useful for a wide variety of applications including water quality management in a broad range of production processes and medium-sized wastewater treatment nts or for general pH and ORP control systems. Based on Yokogawa’s track record and years of experience a comprehensive range of products has been produced to provide solutions best suited to individual applications.
In addition to the PH8EFP and PH8ERP standard Ryton pH sensors our line of pH sensors has been strengthened by the inclusion of the solid electrolyte pH sensor HA405 pH sensor for chemical processes DPA405 pH sensor and hydrofluoric acid-resistant pH sensor HF405 to cope with applications where standard sensors cannot be used. For reliable measurement of pH of high purity water in boilers and semiconductor process applications the pH sensor PH8EHP and holder PH8HH are offered.
Like the pH sensor series the ORP sensor series is also offered as a complete lineup with the solid electrolyte ORP sensor HA485 ORP sensor for chemical processes DPA485 in addition to the OR8EFG and OR8ERG standard Ryton ORP sensors.
FEATURES
Ryton pH/ORP Sensors PH8EFP PH8ERPOR8EFG OR8ERG
d With the body made of Ryton a strong engineering stic which is comparable to Teflon in terms of corrosion resistance and heat resistance it allows for a wide range of applications.
d A single type of sensor can support all applications regardless of whether a holder or cleaner is used.
d The integrated-sensor design simplifies calibration with standard solutions and maintenance.
d The pH glass electrode of a pH sensor the tinum or gold electrode of a ORP sensor and junction can be individually reced.
Solid Electrolyte pH/ORP Sensors (Xerolyt) :HA405 HA485
d Allows pH measurement under severe conditions such as where the process fluid is heavily contaminated or contains sulfide.
With solid polymer used as the inner solution the liquid junction is large (1.0 to 1.5 mm ) which prevents clogging.
pH/ORP Sensors for Chemical Processes : DPA405 DPA485
d Extremely long life span for pH measurement inelectrolytic processes.
d With the pressurized inner solution there is no need for a pressure holder.
d The silver barrier incorporated in the reference electrode inhibits the generation of sulfide around the liquid junction.
Hydrofluoric Acid-Resistant pH Sensor (HF405)
d The special sensing membrane allows measurement of solutions or drainage containing hydrofluoric acid.
d With solid polymer used as the inner solution the liquid junction for the process fluid is large (1.0 to 1.5 mm ) which prevents clogging.
pH Sensor for High Purity Water: PH8EHP
d The dedicated holder provides solutions to problems that arise when measuring high-purity water.
Combined with PH202 FLXA21 PH450G compensates for the effect of fluid temperature.
Temperature compensation sensor: Pt1000
Wetted part materials:
Body; Ryton (PPS resin) glass titanium or
Hastelloy C ceramics teflon fluorocarbon
rubber or Daielperfrow rubber
Cable; Chlorinated polyethylene rubber (Cable
sheath)
KCl tube; Heat-resistant soft PVC (General purpose
or big volume tank 500ml) Polyethylene
(Medium pressure)
Weight: Sensor; Approx. 0.4kg Tank; Approx. 0.3kg
(General purpose) Approx. 1kg (Medium
pressure) Approx. 0.8kg (Big-volume)
1-4. Solid Electrolyte pH Sensor (Xerolyt) HA405 Measuring range: pH 2 to 14
Measuring temperature:
0 to 110 8C (See Table 1 when using holder) Measuring pressure:
Atmospheric pressure to 1.6MPa (Tempera-ture 25 8C)
Atmospheric pressure to 600kPa (Tempera-ture 100 8C)
(See Table 2 when using holder)
Internal electrolyte: Solid polymer including KCl (Xerolyt) Temperature compensation sensor:
None (Manual temperature compensation on the converter or transmitter)(Use the adapter with temperature sensor SA405 for application where the temperature varies)
Applicable holder:
Flow-through holder (PH8HF) Submersion
holder (PH8HS)
(An optional adapter is needed but not
needed when using the adapter with
temperature sensor SA405.)
Ultrasonic cleaning is not available.
Only jet cleaning is available when cleaning
is necessary.
Wetted part materials:
Body; Glass
O-ring; Silicon rubber or Daielperfrow rubber
Adapter; Stainless steel (SUS316) polypropylene or
rigid polyvinyl chloride
AUTION ON USE:
This sensor cannot be used outdoors even when using with a holder this sensor cannot be used outdoors due to exposure to rain or due to condensation at a high humid ce. This sensor cannot be used with a guide-pipe holder.
The sensor must be installed in a vertical position. It can not be installed from below and in a horizontal position either.
The sensor may not stａnd a long-term use in solutions containing organic solvents because of the erosion of its internal electrolyte polymer.
1-5. pH Sensors for Chemical Processes (DPA405) Measuring range: pH 0 to 14
Measuring temperature:
0 to 100 8C (See Table 1 when using holder) Measuring pressure:
Atmospheric pressure to 250kPa (Depending on the inner pressure of the sensor)
(See Table 2 when using holder) Internal electrolyte: High-viscosity gel
Temperature compensation sensor:
None (Manual temperature compensation on the converter or transmitter)
(Use adapter with temperature sensor (SA405) for application where the tempera-ture varies)
Applicable holder:
Flow-through holder (PH8HF) Submersion
holder (PH8HS)
(An optional adapter is needed but not
needed when using an adapter with
temperature sensor SA405.)
Ultrasonic cleaning is not available.
Only jet cleaning is available when cleaning
is necessary.
Use O-ring covered by Teflon (K9148MR)
when using a special holder for electrolytic
processes
Wetted part materials:
Body; Glass
O-ring; Silicon rubber or Daielperfrow rubber
Adapter; Stainless steel (SUS316) polypropylene
rigid polyvinyl chloride heat-resistant
polyvinyl chloride or titanium
CAUTION ON USE:
This sensor cannot be used outdoors even when using with a holder this sensor cannot be used outdoors due to exposure to rain or due to condensation at a high humid ce. This sensor cannot be used with a guide-pipe holder.
The sensor must be installed in a vertical position. It can not be installed from below and in a horizontal position either.
1-6. Hydrofluoric Acid-Resistant pH Sensor HF405 Measuring range: pH 2 to 11
Upper limit of HF concentration:
Max. 1000 ppm at pH 3 to 4 Max. 10000 ppm at pH 4 to 5 No limit at pH 5 or greater
Measuring temperature:
0 to 80 8C (See Table 1 when using holder) Measuring pressure:
Atmospheric pressure to 1.6MPa (Tempera-ture 25 8C)
Atmospheric pressure to 600kPa (Tempera-ture 100 8C)
(See Table 2 when using holder)
Internal electrolyte: Solid polymer including KCl (Xerolyt) Temperature compensation sensor:
None (Manual temperature compensation on the converter or transmitter)
(Use adapter with temperature sensor SA405 for application where the temperature varies)
Applicable holder: Flow-through holder (PH8HF)
Submersion holder (PH8HS)
(An optional adapter is needed but not
needed when using the adapter with
temperature sensor SA405.)
Wetted part materials:
Body; Glass. silicon rubber or Daielperfrow
rubber
Adapter; Stainless steel (SUS316) polypropylene or
rigid polyvinyl chloride
CAUTION ON USE:
This sensor cannot be used outdoors even
