Subscribe to Our Youtube Channel
Summary of Contents for Gems Sensors & Controls CT-1000
- Page 1 Technical Documentation CT-1000 The potentiometric level sensor Edition: 03/2011 Version: 5 Article no.: 233945 Gems Sensors & Controls One Cowles Rd Plainville CT Telephone 800-378-1600...
- Page 2 Page 2/15 CT-1000...
-
Page 3: Table Of Contents
Field of application ................ 4 Safety instructions................. 5 Design and function description ..........6 Installation ..................8 CT-1000 Mono (single rod).................9 CT-1000 DU (two rods) ..................9 Electrical connection..............10 Configuration................12 Measuring span at the level sensor ..............12 Current draw in failure mode ................13 Technical data ................ -
Page 4: Field Of Application
Field of application The purpose of the CT-1000 level sensor is to provide continuous level gauging of electrically conductive liquids ( > 1 μS/cm). During the measurement no insulating layer must be formed on the probe tube. The level sensor is available in lengths of 8” to 19.7’ . -
Page 5: Safety Instructions
Safety instructions The purpose of the CT-1000 level sensor is to provide continuous level gauging of liquids. The level sensor must be used exclusively for this purpose. The manufacturer accepts no liability for any loss or damage arising from improper use. -
Page 6: Design And Function Description
Design and function description The design of the CT-1000 level sensor is illustrated in Figure 1 with the screw-in unit version as an example. Inside the sensor head (1) and concealed by the cap (2) are the protected terminals and configuration buttons. The electrical connection is established by means of an M16x1.5 screwed cable gland (3) and screw terminals or by an M12 plug-in... - Page 7 The fill level is calculated from the ratio of the measured voltages by a microcontroller. The ratio of the two voltages also enables the orientation of the CT-1000 sensor to be detected, i.e. whether the sensor has been installed from top down or bottom up.
-
Page 8: Installation
The level sensor can also be fitted into the tank from underneath. The orientation is detected automatically. CT-1000 Mono: If the probe tube is immersed in the liquid only a short way, the linearity of the measurement is affected by the short distance be- tween the probe tube and reference potential. -
Page 9: Ct-1000 Mono (Single Rod)
CT-1000 Mono (single rod) With the single-rod probe, the tank acts as the counter electrode. For this reason, the material on the inside of the tank must be conductive and there must be good electrical contact between the tank and sensor head. For this purpose, the ground connection must be connected to the tank. -
Page 10: Electrical Connection
Unscrew cap (1) using an open-ended spanner (WAF 19) Loosen union nut (2) of screwed cable gland (3) Figure 4: Connecting the CT-1000 level sensor Feed two-core cable (4) through union nut (2) and fit screwed cable gland (3) and then retighten the union nut. - Page 11 The earth connection on the underside of the sensor head can be used for earthing or equipotential bonding. With the CT-1000 Mono, ground connection (5) must be connected to the electrically conductive tank. Protect the sensor head against the ingress of water. An external cable diameter of 5 to 10 mm ensures reliable sealing of the cable entry.
-
Page 12: Configuration
Configuration Measuring span at the level sensor To enable configuration of the 4 mA and 20 mA points at the CT-1000 level sensor, two buttons and an LED (light emitting diode) are provided near the terminals inside the sensor head. -
Page 13: Current Draw In Failure Mode
2.5 seconds before reverting to measuring mode and discarding the change. To set a current draw of 3.6 mA during the 10-second dwell period in failure mode briefly press the 4 mA button (2) (1–2 seconds). CT-1000 Page 13/15... - Page 14 If, during operation, the level sensor detects that the level cannot be output correctly due to an insufficient supply voltage, it enters failure mode and sets current draw to 3.6 mA (regardless of any failure current settings). Page 14/15 CT-1000...
-
Page 15: Technical Data
Resolution better than 0.1 % Analog component Temperature drift better than ±0.01 %/K Resolution better than 0.5 μA Process temperature NT: -40 to +302 °F Process pressure 150 bar at 68°F, 25 bar at 302 °F Process conductivity > 1 μS/cm CT-1000 Page 15/15...
Need help?
Do you have a question about the CT-1000 and is the answer not in the manual?
Questions and answers