IM 12B7J1-01E
< 1. Specification >
1-1
1. Specification
The Model PH8EFP KCl filling type pH Sensor permits stable pH measurement even for
solutions having comparatively severe properties.
This sensor can be mounted on either an PH8HF flow-through holder or an PH8HS submersion
holder, or its can be used alone suspended in the solution (maximum depth 3 meters) depending
on the specification.
1.1
Standard Specifications
Measurement:
Hydrogen ion concentration (pH) of a solution
Measurement principle: Glass electrode method
Measuring range:
0 to 14 pH (see Table 1)
Installation:
Mounting in PH8HS submersion holder
Mounting in PH8HG guide-pipe holder
Mounting in PH8HF flow-through holder
Note: If any of the following solutions are measured, install the sensor either in a flow-through or submersion holder.
• When the solution temperature exceeds 80°C.
• When the pH of the solution is 2 or less or 12 or greater.
• When a strong acid solution is to be measured
(e.g., aqua regia, chromic acid, hypochlorous acid or perchloric acid, etc.).
• When the solution contains corrosive gases
(e.g., ammonia, chlorine, hydrogen sulfide, etc).
• When the solution contains a small percentage of organic solvent or oil.
Solution temperature: -5 to 105°C
when mounted in PH8HG guid-pipe holder: -5 to 80°C
when mounted in PH8HS, PH8HF holder, see Table 1.
Table 1. Process Temperature Range
Holder Type
Holder Material
Cleaner
Solution
pH Range
Solution
Temperature
(°C)
Guide-pipe
(PH8HG) (*4)
PVC
None
2 to 12
-5 to 50
PP (*3)
None
-5 to 80
Submersion
(PH8HS)
PP (*2) )*3)
None
0 to 14
-5 to 100
SS (*1)
Provided
-5 to 80
Flow-through
(PH8HF) (*2)
PP
None,Provided
-5 to 80
SS (*1)
None
-5 to 105
Provided
-5 to 80
Suspension
(HH350G) (*4)
SS (*1)
None,Provided
-5 to 80
Float
(PB350G,PB360G)
(*4)
PP
SS (*1)
None
-5 to 50
Note: PVC: Rigid Polyvinyl, PP: Polypropylene, SS: Stainless Steel:
*1
Stainless steel holder and Stainless steel adapter should be used when the pH value of the solution is pH3 or more acidic.
*2:
For flow-through types, refer also to the solution temperature and pressure graph
(in notes following Model and Suffix code table for flow-through type holders).
*3:
The temperature of chemical cleaning is 0 to 50 °C.
*4:
Cannot be used with pH sensors connected to Variopin connecter.
12th Edition : Dec.14,2018-00
