Brand instruments
Brand Instrument
Flow-through pH, ORP detector HC-8 series
Product description
Technical indicators
It can be used in closed pipelines with certain process pressure such as pipes and closed tanks. According to the conditions of use, choose a suitable flow-through detector and electrode combination. The electrodes introduced in this article are all KCl replenishment type.
According to the installation form, it can be divided into flow-pool installation with flange connection in piping bypass, and direct plug-in installation with screw or flange connection on the side of piping and tank.
For submerged installation, please refer to the relevant specifications of the submerged pH • ORP meter detector.
● KCl replenishment electrode flow detector
The flow-through pH • ORP detector used in combination with KCl replenishment electrodes can be applied to various measurement conditions. There are a variety of liquid junction materials and different types of electrodes to choose from. In order to ensure that the KCl reference solution can flow out normally, the pressure difference between the detector and the measured solution must be maintained at 30KPa ~ 50KPa. It is recommended to use instrument air for pressurization.
Universal
It is used for general online process control of drainage and water treatment, flue gas desulfurization, boiler equipment, etc. It is widely used. Select the appropriate model through the connection method and measurement conditions.
| model | Connection method | Wetted material | Pressure range | temperature range | Flow rate | Electrode model representative | quality | ||
| pH | ORP | ||||||||
| HC-880 |
Direct insertion,
Screw or flange mounting
|
PP,FKM | 0～0.30MPa | -5～80℃ | 2m/s以下 | 5610 | 2610 | 1kg | |
| Pressurize | NHC-882 |
Resin flow cell
Flange or screw connection
|
PP,FKM | 0～0.30MPa | -5～80℃ | 5～10L/min | 5610 | 2610 | 2kg |
| NHC-883 |
Stainless steel flow cell
Flange or screw connection
|
PP,FKM, SUS316 |
0～0.30MPa | -5～80℃ | 5～10L/min | 5610 | 2610 | 5kg | |
| No pressure | NHC-892 |
Stainless steel flow cell
Flange or screw connection
|
PP,FKM | Atmospheric pressure (water collection type) | -5～80℃ | 5～10L/min | 5600 | 2600 | 2kg |
| NHC-893 |
Stainless steel flow cell
Flange or screw connection
|
PP,FKM, SUS316 |
Atmospheric pressure (water collection type) | -5～80℃ | 5～10L/min | 5600 | 2600 | 5kg | |
･ Check the detailed specifications of the detector by the product code of each model
Specific use type
KCl liquid tank integrated flow detector, made of stainless steel (* indicates that the material is Teflon), resistant to high temperature and high pressure. Suitable for online process control in food chemistry, pharmaceutical factories, etc. Select the appropriate model through the connection method and measurement conditions.
| model | Connection method | Wetted material | Pressure range | temperature range | Flow rate | Electrode model representative | quality | |
| pH | ORP | |||||||
| HC-811 | Direct insertion, thread | SUS316,FKM | 0～0.45MPa | -5～95℃ | 2m/sthe following | 5500 | 2500 | 2kg |
| HC-812 | Direct plug-in, flange | Same as above | Same as above | Same as above | 2m/sthe following | 5500 | 2500 | 3kg |
| NHC-813 |
Stainless steel flow cell,
Flange or thread
|
Same as above | Same as above | Same as above | 5～10L/min | 5500 | 2500 | 6kg |
| *HC-852 |
Direct plug-in, flange
(Teflon)
|
PTFE Kalrez |
Same as above | Same as above | 2m/sthe following | 5502 | __ | 2kg |
| *HC-853 |
Flow cell, flange
(Teflon)
|
PTFE,PFA Kalrez |
Same as above | Same as above | 5～10L/min | 5502 | __ | 18kg |
| HC-815 |
Detachable (direct insertion)
Thread
|
SUS316,FKM | Same as above | Same as above | 2m/sthe following | 5509 | __ | 3kg |
| HC-64 |
Trace type detector, used to control the pH value of boiler water and pure water. Combined electrode: MG511, 4164, 6149
pH electrode specifications
|
|||||||
The pH electrode uses a glass film with excellent linearity, and the measuring range can reach 0 ~ 14 pH. It also adopts a structure that suppresses the outflow of silver chloride from the liquid junction of the comparative electrode. It can continuously and stably measure under various measuring conditions such as high temperature, dilute solution, reducing solution and so on.
Fluoric acid-resistant glass film can be used in a solution containing fluoric acid; in addition, there are organic solvent-resistant electrodes, which are made of Kalrez or Perfluoro (perfluoro rubber) materials, which have a strong resistance. The reference solutions for all electrodes in the table below are 3M potassium chloride (KCl) solutions.
| model |
Reference solution
Injection method
|
Type of glass film |
pH
Measuring range
|
Operating temperature range |
Reference electrode
Sealing material
|
Lead material |
Flow cell
Model representative
|
| 5610-□F | Pressurized | Standard membrane | 0~14pH | -5～70℃ | FKM (fluoroelastomer) | Heat-resistant PVC | NHC-882 |
| 5611-□F | -5～95℃ | FKM | silicon | NHC-883 | |||
| 5612-□F | -5～70℃ | Perfluoroelastomer | Heat-resistant PVC | NHC-883 | |||
| 5613-□F | -5～95℃ | Perfluoroelastomer | silicon | HC-853 | |||
| 5615-□F | Fluoride-resistant film | 2~11pH | -5～50℃ | FKM | Heat-resistant PVC | NHC-882 | |
| 5600-□F | No pressure | Standard membrane | 0~14pH | -5～70℃ | FKM | Heat-resistant PVC | NHC-892 |
| 5601-□F | -5～95℃ | FKM | silicon | NHC-893 | |||
| 5605-□F | Fluoride-resistant film | 2~11pH | -5～50℃ | FKM | Heat-resistant PVC | NHC-892 | |
| 5500-□F | Pressurized | Standard membrane | 0~14pH | -5～95℃ | FKM | Heat-resistant PVC | NHC-813 |
| 5502-□F | -5～95℃ | Perfluoroelastomer | Heat-resistant PVC | HC-853 | |||
| 5509-□F | -5～95℃ | FKM | Heat-resistant PVC | HC-815 |
pH electrode specifications
The sensing part of the ORP electrode is platinum (Pt), or an alloy (M) mainly made of gold. Platinum electrodes are used for general ORP process control, and alloy electrodes are used for waste water, sewage, urine and feces.
Built-in temperature sensor (T), automatic temperature compensation when measuring temperature and calibration of standard solution. The reference electrode (R) has the same structure as the pH reference electrode, and the reference solutions are all 3M potassium chloride (KCl) solutions.
| model | Constitute |
Reference solution
Injection method
|
Operating temperature range |
Reference electrode
Sealing material
|
Lead material |
Flow cell
Model representative
|
| 2610-□F | Pt+R+T | Pressurized | -5～70℃ | FKM | Heat-resistant PVC | NHC-882 |
| 2615-□F | M+R+T | Pressurized | -5～70℃ | FKM | Heat-resistant PVC | NHC-882 |
| 2600-□F | Pt+R+T | Not pressurized | -5～70℃ | FKM | Heat-resistant PVC | NHC-892 |
| 2605-□F | M+R+T | Not pressurized | -5～70℃ | FKM | Heat-resistant PVC | NHC-892 |
| 2500-□F | Pt+R+T | Pressurized | -5～95℃ | FKM | Heat-resistant PVC | NHC-813 |
| 2505-□F | M+R+T | Pressurized | -5～95℃ | FKM | Heat-resistant PVC | NHC-813 |
pH / ORP electrode notes
● Under standard conditions (electrode and flow cell are used together, the pressurized pressure is 30 ~ 50KPa higher than the process pressure, or no pressurization), the consumption of KCl is about 1 ~ 3mL / 1 day.
● The pH electrode of fluoric acid-resistant glass film can be used in HF solution (-5 ~ 50 ℃) with concentration up to 1000ppm.
● The standard glass membrane pH electrode, used under high temperature (above 50 ℃), high alkalinity (above pH13) conditions will accelerate the deterioration of electrode characteristics, please consult in advance.
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