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Time of issue:2020-04-29 00:00:00
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Flow-through pH, ORP detector HC-8 series

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Flow-through pH, ORP detector HC-8 series

image/orp
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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Related options
 
Pressure control: PAS-10 type
 
When the KCl replenishment type pressure detector uses instrument air to pressurize, this air control device is optional.
 
The pressure can be set between 0 ~ 0.3Mpa or 0 ~ 1.0MPa. Comes with a filter and a pressure reducing valve, connected by a spiral tube for easy installation.
 
Optional accessories for pressure port
 
Spiral nylon tube, telescopic range from 50cm to 5m.
When there is no instrument air on site, manual pressure pump (with one-way valve) can also be selected to pressurize regularly. (Manual booster pump separately)
 
pH measuring device-round rod holder
 
Model: PAC-8
 
The field-mounted bracket allows the pH transmitter and flow detector to be installed on the same stand. It is also equipped with a liquid inlet pipe and a flow regulating valve, which is easy to install. The inlet side of the water sample is Rc 1/2, and the outlet side is Rc 1 (atmosphere is open).
 
Junction Box
 
Use a junction box when the transmitter and sensor are far apart and the electrode lead length is insufficient.
 
Model: Box. FC-4
structure: 现Field installation Rainproof structure (JIS C 0920)
weight: About 0.9kg
Material: ABS resin
colour: Metallic silver
installation method: 25A ~ 50A tube or wall-mounted installation
Special cable
 
Used to connect the transmitter and junction box.
The length is 100m.
model: EC-10
Outer diameter: φ8
Insulation: Polyethylene and vinyl resin
Outer layer: plastic
Standard length 5m,10~100m
weight: About 0.5kg / 5m
Insulation resistance between core wires: 105MΩ or more / 100m

 

KCI liquid storage tank
 
The KCl storage tank is an option for the universal flow-through detector. The KCl storage tank is an option in the product code.
 
There are two types of KCl storage tanks for pressurized detectors: integrated (approximately 250 mL) and separated (approximately 500 mL).
 
The KCl storage tank without pressure detector is an integral type (250mL).
 
The KCl replenishment frequency of the integrated type is about 1 month, and the separation type can be extended to 2 months. The liquid storage tank is made of transparent material, which is convenient for confirming the remaining amount of KCl soluti

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