WTW 103741 SenTix® 940-3 Combined IDS pH sensor with gel electrolyte plastic shaft, integrated temperature sensor
Technical Data
SenTix® | 940/940-3 | 950 | 980 | |
pH | 0.000 … 14.000 ± 0.004 | 0.000 … 14.000 ± 0.004 | 0.000 … 14.000 ± 0.004 | |
mV | – – – | | | |
Temp. | 0 … 80 °C | 0 … 80 °C | 0 … 100 °C | |
SenTix® | 945 | Micro 900 | Sp-T 900 | HW-T-900 |
Measuring range | pH: 0.000 … 14.000 ± 0.002 | pH: 0.000 … 14.000 ± 0.002 | pH: 2.000 … 13.000 ± 0.002 | pH: 0.000 … 14.000 ± 0.002 |
Area of use | 0 … 80 °C | 0 … 100 °C | 0 … 50 °C | 0 … 60 °C |
Reference electrolyte | Gel | KCl 3 mol/l | Polymer | KCl 3 mol/l |
Membrane form | Sphere | Cylinder | Spear | Cylinder |
Diaphragm | 3 x ceramic | Platinum wire | Hole | Grinding |
Shaft material | Glass | Glass | Plastic | Glass |
Shaft length | 120 mm | 70/130 mm | 65/25 mm | 120 mm |
Shaft diameter | 12 mm | 12/5 mm | 15/5 mm | 12 mm |
Temperature sensor | NTC 30 kOhm | NTC 30 kOhm | NTC 30 kOhm | NTC 30 kOhm |
Connecting cable | 1.5 m with digital plug | 0.5 m with digital plug | 0.5 m with digital plug | 0.5 m with digital plug |
Digital measurement of pH with built-in electrode quality monitoring - usable in all areas of lab and field measurement
- Safely measured values due to signal processing in the sensor
- Easy electrode replacement thanks to calibration data stored inside sensor
- Sensor quality monitoring by QSC function
Full Description
WTW SenTix® 940-3 Combined IDS pH sensor with gel electrolyte plastic shaft, integrated temperature sensor - measuring range pH 0 to 14, temperature 0 to 80 C - automatic recognition - memory for 10 calibration records - fail safe signal transfer - low maintenance - QSC
pH electrodes are the most frequently used electro-chemical sensors. They are used practically in all areas of lab and field measurement. At the same time, the deliver the most sensitive measuring signals and must be serviced and calibrated at regular intervals.
This is exactly where the concept of IDS sensors comes in. Digital data transfer is safe against interference, allows the use of long cables and permits important additional information such as calibration data and sensor recognition.
WTW offers a wide variety of IDS pH electrodes for field use, all the way to special applications in the lab. The QSC function allows monitoring of the current sensor status with all IDS pH electrodes.
Model | Description | Order no. |
---|---|---|
AS/IDS-1.5 | Connecting cable for MPP IDS as well as plug head sensors, length 1.5 m | 903850 |
AS/IDS-3 | Like above, 3 m | 903851 |
AS/IDS-6 | Like above, 6 m | 903852 |
AS/IDS-10 | Like above, 10 m | 903853 |
AS/IDS-15 | Like above, 15 m | 903854 |
AS/IDS-20 | Like above, 20 m | 903855 |
AS/IDS-25 | Like above, 25 m | 903856 |
AS/IDS-40 | Like above, 40 m | 903857 |
AS/IDS-60 | Like above, 60 m | 903858 |
AS/IDS-100 | Like above, 100 m | 903859 |
A 925-P | Replacement head with existing protective basket | 903838 |
A 925-P/K | Arming for IDS –P sensors with protective basket made of POM | 903839 |
A 925-P/S | Arming for IDS –P sensors with protective basket made of stainless steel | 903840 |
A pHLab/K | Plastic arming for SenTix® IDS pH electrodes | 903841 |
D 3Sen | Flow vessel for field measurements | 903842 |
pH cap | Replacement watering cap for SenTix® pH electrodes (12 mm shaft) | 108065 |