pH Electrodes, Schott BlueLine Gel, Liquid and Special
Overview
The Schott BlueLine family of pH electrodes is made up of three ranges. For general use the robust electrodes with gel electrolyte and plastic shaft, for more critical measurements the liquid electrolyte sensors and for unique applications special sensors.
The gel electrolyte and the liquid electrolyte sensors are available with plug head or fixed cable of various lengths with either DIN or BNC type plug, and are also available with integrated temperature sensors
The special electrodes range includes pH electrodes for surface measurements, for small sample amounts, for ultrapure water and emulsions or measurements in semi-solid samples. The range also includes redox electrodes and a conductivity electrode for media with low ionic content.
An accurate and fast measurement is ensured by precision manufacturing and employment of high quality material such as low-resistance A-type membrane glass, low temperature L-glass or the unique platinum diaphragm.
Features of the Schott BlueLine Electrodes:
Comfortable handling, stylish design and reliable function
Available gel electrolyte, liquid electrolyte and special sensors
Wide variety in the basic family for standard laboratory applications, made from universal A-type membrane glass for short response time
Liquid electrolyte electrodes with unique platinum diaphragm and refill port slider
Each electrode has an individual serial number
Specifications (Click here):
pH Electrodes, Schott BlueLine Gel, Liquid and Special
Specifications
Model:
General gel electrolyte
Liquid electrolyte
Special 13 pH, 16 pH
Special 21 pH, 27 pH
Special 31 Rx, 32 Rx
Special 48 LF
Shaft length: (mm)
120
120
13 pH 170, 16 pH 40/80
21 pH 65/25, 27 pH 120
120
120
Shaft diameter: (mm)
12
12
13 pH 12, 16 pH 12/5
21 pH 12/5, 27 pH 12
12
12
Shaft material:
Noryl
glass
glass
glass
31 Rx glass, 32 Rx plastic
stainless steel
Zero point: (pH)
7.0 ± 0.3
7.0 ± 0.3
-
-
-
-
Diaphragm:
fiber
platinum
13 pH screw ground joint, 16 pH platinum
21 pH hole, 27 pH KPG® annular gap
31 Rx ceramic, 32 Rx fiber
-
Reference system:
Ag/AgCl
Ag/AgCl
Ag/AgCl
Ag/AgCl
Ag/AgCl
-
Reference electrolyte:
Gel (KCl)
KCI 3 mol/L
KCI 3 mol/L
Referid®
31 Rx KCI 3 mol/L, 32 Rx gel
-
Reference type:
Low maintenance, non refillable
refillable
-
-
-
-
Shape of glass membrane:
cylindrical
conical
spherical
21 pH spear, 27 pH flat
-
-
Sensor material, diameter: (mm)
-
-
-
-
31 Rx platinum disk 4 Ø, 32 Rx platimum pin 1 Ø
stainless steel
Resistance of glass membrane at 25 °C: (MΩ)
400
200
-
-
-
-
Type of membrane glass:
A (low resistance)
A (low resistance)
13 pH A (low resistance), 16 pH L
L
-
-
Measuring range, pH: (pH)
0 to 14
0 to 14
0 to 14
2-13
-
-
Measuring range, conductivity: (µS/cm)
-
-
-
-
-
0 to 300
Operating temperature range: (°C)
-5 to +80
-5 to +100
-5 to +100
21 pH -5 to +80, 27 pH -5 to +50
31 Rx -5 to +100, 32 Rx -5 to +80
-5 to +80
Serial number:
yes
yes
yes
yes
yes
yes
Integrated temperature sensor:
no, NTC 30 kΩ or Pt 1000
no, NTC 30 kΩ or Pt 1000
no
no
no
NTC 30 kΩ
Number
Description
Price $
285129114
BlueLine 11 pH combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, cone membrane, A-glass, plug head, length 120 mm, 12 mm Ø, -5 to +100 °C, 0 to 14 pH
358.75
285129122
BlueLine 12 pH combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, cone membrane, A-glass, 1 m fixed cable with DIN plug, length 120 mm, 12 mm Ø, -5 to +100 °C, 0 to 14 pH
404.25
285129139
BlueLine 13 pH combination electrode, glass shaft, ground joint-junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, cylinder membrane, A-glass, plug head, length 170 mm, 12 mm Ø, -5 to +100 °C, 0 to 14 pH
603.75
285129147
BlueLine 14 pH combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cone membrane, A-glass, 1 m fixed cable with DIN plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
617.75
285129440
BlueLine 14 pH ID pH-combination electrode with sensor recognition, electrode recognition, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cone membrane, A-glass, 1 m fixed cable with DIN plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
708.75
285129140
BlueLine 14 pH IDS electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cone membrane, A-glass, 1.5 m fixed cable with digital plug, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
822.50
285129155
BlueLine 15 pH combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cone membrane, A-glass, 1 m fixed cable with BNC plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
617.75
285095730
BlueLine 15 pH Cinch combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cone membrane, A-glass, 1 m fixed cable with BNC plug + Cinch plug, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
801.50
285129450
BlueLine 15 pH ID pH-combination electrode with sensor recognition, electrode recognition, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cone membrane, A-glass, 1 m fixed cable with BNC plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
708.75
285095740
BlueLine 15 pH NTC10 combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 10 kOhm, cone membrane, A-glass, 1 m fixed cable with BNC plug + phone plug, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
717.50
285129163
BlueLine 16 pH combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, cylinder membrane, A-glass, length 40/80 mm, 12/5 mm Ø, -5 to +100 °C, 0 to 14 pH
679.00
285129171
BlueLine 17 pH combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, cone membrane, A-glass, 1 m fixed cable with BNC plug, length 120 mm, 12 mm Ø, -5 to +100 °C, 0 to 14 pH
386.75
1064746
BlueLine 17 pH-R combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, cone membrane, A-glass, 1 m fixed cable with Metrohm plug, length 120 mm, 12 mm Ø, -5 to +100 °C, 0 to 14 pH
432.25
285129188
BlueLine 18 pH combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor Pt 1000, cone membrane, A-glass, 1 m fixed cable with DIN plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
617.75
285129190
BlueLine 19 pH combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor Pt 1000, cone membrane, A-glass, 1 m fixed cable with BNC plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
617.75
285129490
BlueLine 19 pH NN combination electrode, glass shaft, platinum junction, electrolyte KCl 3 mol/L, Ag/AgCl-ref. system, temperature sensor Pt 1000, cone membrane, A-glass, 1 m fixed cable with BNC plug + 2 × 4 mm banana plugs, length 120 mm, 12 mm Ø, -5 to +100° C, 0 to 14 pH
705.25
285129217
BlueLine 21 pH combination electrode, plastic shaft, hole-junction, Referid® electrolyte, Ag/AgCl-reference system, spear membrane, A-glass, plug head, length 65/25 mm, 12/5 mm Ø, -5 to +80 °C, 2 to 13 p H
740.25
285129940
BlueLine 21 pH 1M-BNC-ID pH-combination electrode with sensor recognition, glass shaft, hole-junction, Referid® electrolyte, Ag/AgCl-reference system, spear membrane, A-glass, 1 m fixed cable with BNC plug and recognition, length 65/25 mm, 12/5 mm Ø, -5 to +80 °C, 2 to 13 pH
889.00
285129930
BlueLine 21 pH 1M-DIN-ID pH-combination electrode with sensor recognition, glass shaft, hole-junction, Referid® electrolyte, Ag/AgCl-reference system, spear membrane, A-glass, 1 m fixed cable with DIN plug and recognition, length 65/25 mm, 12/5 mm Ø, -5 to +80 °C, 2 to 13 pH
889.00
285129210
BlueLine 21 pH IDS electrode, plastic shaft, hole-junction, Referid® electrolyte, Ag/AgCl-reference system, spear membrane, A-glass, 1.5 m fixed cable with digital plug, length 90 (65/25) mm, 12/5 mm Ø, -5 to +80 °C, 2 to 13 pH
971.25
285129225
BlueLine 22 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, cylinder membrane, A-glass, plug head, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
245.00
285129233
BlueLine 23 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, cylinder membrane, A-glass, 1 m fixed cable with DIN plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
323.75
1063462
BlueLine 23-2 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, cylinder membrane, A-glass, 2 m fixed cable with DIN plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
400.75
1066411
BlueLine 23-5 pH-S combination electrode, Plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, cylinder membrane, A-glass, 5 m fixed cable with S plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
442.75
285129241
BlueLine 24 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 1 m fixed cable with DIN plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
539.00
285129240
BlueLine 24 pH IDS electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 1.5 m fixed cable with digital plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
714.00
285129620
BlueLine 24-10 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 10 m fixed cable with DIN plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
1,076.25
285129533
BlueLine 24-3 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 3 m fixed cable with DIN plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
665.00
285129243
BlueLine 24-3 pH IDS electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 3 m fixed cable with digital plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
792.75
285129258
BlueLine 25 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, cylinder membrane, A-glass, 1 m fixed cable with BNC plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
323.75
1063461
BlueLine 25-2 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, cylinder membrane, A-glass, 2 m fixed cable with BNC plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
400.75
285129540
BlueLine 25-5 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, cylinder membrane, A-glass, 5 m fixed cable with BNC plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
495.25
285129266
BlueLine 26 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 1 m fixed cable with BNC plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
530.25
285095712
BlueLine 26 pH Cinch combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 1 m fixed cable with BNC plug + Cinch plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
612.50
285095760
BlueLine 26 pH NTC10 combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 10 kOhm, cylinder membrane, A-glass, 1 m fixed cable with BNC plug + phone plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
612.50
285129630
BlueLine 26-3 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 3 m fixed cable with BNC plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
670.25
285129274
BlueLine 27 pH combination surface electrode, glass shaft, KPG-annular-gap-junction, Referid® electrolyte, Ag/AgCl-reference system, flat membrane, L-glass, length120 mm, 12 mm Ø, -5 to +50 °C, 2 to 13 pH
612.50
285129960
BlueLine 27 pH 1M-BNC-ID pH-combination surface electrode with sensor recognition, glass shaft, KPG-annular-gap-junction, Referid® electrolyte, Ag/AgCl-reference system, flat membrane, L-glass,1 m fixed cable with BNC plug and recognition, length120 mm, 12 mm Ø, -5 to +50 °C, 2 to 13 pH
761.25
285129950
BlueLine 27 pH 1M-DIN-ID pH-combination surface electrode with sensor recognition, glass shaft, KPG-annular-gap-junction, Referid® electrolyte, Ag/AgCl-reference system, flat membrane, L-glass,1 m fixed cable with DIN plug and recognition, length120 mm, 12 mm Ø, -5 to +50 °C, 2 to 13 pH
761.25
285129270
BlueLine 27 pH IDS surface electrode, glass shaft, KPG-annular-gap-junction, Referid® electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, flat membrane, L-glass, 1.5 m fixed cable with digital plug, length120 mm, 12 mm Ø, -5 to +50 °C, 2 to 13 pH
889.00
285129282
BlueLine 28 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor Pt 1000, cylinder membrane, A-glass, 1 m fixed cable with DIN plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
539.00
1065896
BlueLine 28 pH –P combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor Pt 1000, cylinder membrane, A-glass, 1 m fixed cable with DIN plug +2 mm pin plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
551.25
285129570
BlueLine 28-5 pHcombination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor Pt 1000, cylinder membrane, A-glass, 5 m fixed cable with DIN plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
700.00
1065895
BlueLine 29 pH combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor Pt 1000, cylinder membrane, A-glass, 1 m fixed cable with BNC plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
539.00
1065894
BlueLine 29 pH –P combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor Pt 1000, cylinder membrane, A-glass, 1 m fixed cable with BNC plug +2 mm pin plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
551.25
285129311
BlueLine 31 RX redox combination electrode, glass shaft, ceramic junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, sensor platinum disk 4 mm Ø, plug head, length 120 mm, 12 mm Ø, -5 to +100 °C
530.25
285129310
BlueLine 31 RX IDS redox electrode, glass shaft, ceramic junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, sensor platinum disk 4 mm Ø, 1.5 m fixed cable with digital plug, length 120 mm, 12 mm Ø, -5 to +100 °C
717.50
285129320
BlueLine 32 RX credox combination electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, sensor platinum pin 1 mm Ø, plug head, length 120 mm, 12 mm Ø, -5 to +80 °C
428.75
285129560
BlueLine 32 RX 5mA redox combination electrode, plastic shaft, 5 m fixed cable with DIN plug, fiber-junction, gel electrolyte, Ag/AgCl-reference system, sensor platinum pin 1 mm Ø, length 120 mm, 12 mm Ø, -5 to +80 °C
516.25
285129321
BlueLine 32 RX IDS redox electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, sensor platinum pin 1 mm Ø, 1.5 m fixed cable with digital plug, length 120 mm, 12 mm Ø, -5 to +80 °C
603.75
285129323
BlueLine 32-3 RX IDS redox electrode, plastic shaft, fiber-junction, gel electrolyte, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, sensor platinum pin 1 mm Ø, 3 m fixed cable with digital plug, length 120 mm, 12 mm Ø, -5 to +80 °C
682.50
285129488
BlueLine 48 LF combination electrode, conductivity cell for low ionic media, stainless steel shaft, 2-pole cell, 1m fixed cable with 8-pole plug, sensor stainless steel, cell constant 0.1 cm-1, temperature sensor NTC 30 kOhm, length 120 mm, 12mm Ø, -5 to +100°C
757.75
285129460
BlueLine 54 pH combination electrode, plastic shaft, ceramic junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 1 m fixed cable with DIN plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
638.75
285129640
BlueLine 56 pH combination electrode, plastic shaft, ceramic junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 1 m fixed cable with BNC plug +4 mm banana plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
638.75
285129650
BlueLine 56 pH Cinch combination electrode, plastic shaft, ceramic junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 30 kOhm, cylinder membrane, A-glass, 1 m fixed cable with BNC plug + Cinch plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH
731.50
285129660
BlueLine 56 pH NTC10 combination electrode, plastic shaft, ceramic junction, electrolyte KCl 3 mol/L, Ag/AgCl-reference system, temperature sensor NTC 10 kOhm, cylinder membrane, A-glass, 1 m fixed cable with BNC plug + phone plug, length 120 mm, 12 mm Ø, -5 to +80 °C, 0 to 14 pH