General Specifications; Measuring Elements; Construction Materials; Functional Specifications - YOKOGAWA SC25V-AGP25-120 Instruction Manual

Table 1: Production Year code
Year Year code Year
2014 P
2015 R
2016 S
2017 T
2018 U
2019 V
2020 W
2021 X
2022 Y
2023 Z
2024 1
2025 2

2. GENERAL SPECIFICATIONS

2.1 Measuring elements

pH glass electrode
Silver/Silver Chloride reference
Titanium liquid earth
Pt1000 temperature sensor.

2.2 Construction materials

Wetted materials:
O-ring
Earth Ring
Reference Junction : Porous PTFE
Measuring Sensor : Glass
Body Sensor

2.3 Functional specifications

Isothermal point
Glass impedance G-Glass
Glass impedance L-Glass
Reference system
Junction resistance : 0.2 to 5 kΩ
Temp. element
Asymmetry potential : 8 ±15 mV
Slope
Sensor length
Note: The temperature sensor included in the
SC25V is intended to provide indication
and cell compensation. The construction
has not been tested to the pressure
vessel standards required for plant
temperature control.
Year code
2026 3
2027 4
2028 5
2029 6
2030 7
2031 8
2032 9
2033 A
2034 B
2035 C
2036 D
2037 E
: Viton
: Titanium
: Glass, PEEK
: pH 7
: 200 MΩ
: 775 MΩ
: Double junction, Ag/
AgCl with saturated KCI,
including Ag+ ion trap
: Pt1000 to IEC 751
: > 96 %
(of theoretical value)
: 120 mm and 225 mm
Table 2: Production Month code
Month
January
February
March
April
May
June
July
August
September
October
November
December

2.4 Operating range

pH
Temperature
Type G-glass
Type L-glass
Pressure
Conductivity
Storage temp.
* Damaging the screw thread might influence
the max process pressure.
Note: Specifications should not be considered
in isolation. For example the pH range
can be 2-12pH, where the measurement
is at elevated temperatures. For advice
about specific applications please
contact your local sales office.

2.5 Dynamic specifications

Response time pH step (7 to 4)
Response time temp step (10°C)
Stabilization time (0.02 pH unit/10 s)
Month code
1
2
3
4
5
6
7
8
9
A
B
C
: 0 to 14
: -10 to 80°C
(14 to 176°F)
: +15 to 130°C
(59 to 266°F)
: 0 to 10 bar (0 to 145 psi)*
: > 10 μS/cm
: -10 to 50°C (14 to 122°F)
: < 15 sec for 90%
: < 90 sec for 90%
: < 120 seconds
IM12B06J01-40E-E
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