ECVA 2000 Valve Actuator External for all Vici valve heads for LC and GC
An advanced valve actuator to control injection and switching valves in LC and GC (liquid and gas chromatography)-the external (standalone) version
- Description
- Parameters
- Files to download 4
The ECVA 20L Valve Actuator External is an advanced valve actuator designed to control injection, switching and selector valves in liquid and gas chromatography (LC and GC) applications. Used for all Vici and Knauer valves. The ECVA 20L supports 2-position and multi-position valves.
Main features and benefits
- Motor stall detection –The valve actuator detects that the motor has stopped rotating due to mechanical obstruction or the use of the wrong valve type and stops it from running. This prevents damage to its mechanical components.
- Safe shutdown in case of power failure – If a power failure occurs while the motor is running, the device stops the motor, stores the current encoder position in the memory, and then safely shuts down. Therefore, valve position information is not lost and no calibration is required when the power is restored.
- Switching speed optimization – Switching speed learning - The unit uses an intelligent motor-control algorithm that learns the optimal rotation speed for each valve. The rotation speed is therefore adapted to a
specific valve and does not have to be fixed, as is common with conventional stepper motor control.
This results in faster valve-position switching, especially for valves with lower resistance. The transition time between two positions is only 95 ms for selected valve types. - External/embedded versions – The Valve Actuator ECVA 20L comes in two versions, either with a metallic cover for external use or without a cover for embedded use.
- Smart control and diagnostics – An advanced communication protocol is used, which features a fast response time, calibration with a single command, and the possibility to read event and error logs for quick problem diagnostics.
Communication: The ECVA 20L can be controlled through an RS232 interface or TTL-compatible digital inputs. Additionally, an ERVIN communication module can be connected, extending the communication options to USB and Ethernet interfaces. The ECVA 20L is fully supported by ECOMAC software (support for Clarity software is planned for the future).
| Part Number | Use | Product Name and Parameters (external=with chassis; number of positions × number of ports; tubing OD; thread; max. pressure; valve code) | Valve Code |
|---|---|---|---|
| Preparative and Semi-preparative Injection/Switching 2-position Valves for LC | |||
| VCI1ED0x | Preparative | ECVA20L Valve-Injector (External; 2×10; 1/8"; UNF 1/4"–28; 250 PSI; C22-6180D) | C22-6180D |
| VCI4SC0x | Preparative | ECVA20L Valve-Injector (External; 2×4; 1/8"; UNF 5/16“–24; 5000 PSI; DL4UW) | DL4UW |
| SVCI6SC0x | Preparative | ECVA20L Valve-Injector (External; 2×6; 1/8"; UNF 5/16“–24; 5000 PSI; DL6UW) | DL6UW |
| VCI4PA00 | Semi-preparative | ECVA20L Valve-Injector (External; 2×4; 1/16“; UNF 10-32; 250 PSI; C22Z-3184D) | C22Z-3184D |
| VCI6SA0x | Semi-preparative | ECVA20L Valve-Injector (External; 2×6; 1/16"; UNF 10–32; 5000 PSI; DC6UW) | DC6UW |
| Analytical Injection/Switching 2-position Valves for Liquid Chromatography | |||
| VCI4SA00 | Analytical UHPLC | ECVA20L Valve-Injector (External; 2×4; 1/16"; UNF 10–32; 10000 PSI; C82H-1674D) | C82H-1674D |
| VCS4PD0x | Analytical UHPLC | ECVA20L Valve-Injector (External; 2×6; 1/16"; UNF 10–32; 10000 PSI; C82H-1676D) | C82H-1676D |
| VCS6PA0x | Analytical | ECVA20L Valve-Injector (External; 2×6; 1/16"; UNF 10–32; 5000 PSI; C2-2006D) | C2-2006D |
| VCS6PD0x | Analytical | CVA20L Valve-Injector (External; 2×6; 1/16"; UNF 10–32; 5000 PSI; C2-2026D) | C2-2026D |
| Preparative and Semi-preparative Selector/Switching 1-position Valves for Liquid Chromatography | |||
| VCS1PD0x | Preparative | ECVA20L Valve-Selector (External; 1+10; 1/8"; UNF 1/4"–28; 250 PSI; C25-6180D) | C25-6180D |
| VCS4PD0x | Preparative | ECVA20L Valve-Selector (External; 1+4; 1/8"; UNF 1/4"–28; 250 PSI; C25-6184D) | C25-6184D |
| VCS6PA0x | Preparative | ECVA20L Valve-Selector (External; 1+6; 1/16"; UNF 10–32; 5000 PSI; C5-2346D) | C5-2346D |
| VCS6PD0x | Preparative | ECVA20L Valve-Selector (External; 1+6; 1/8"; UNF 1/4"–28; 250 PSI; C25-6186D) | C25-6186D |
| VCS6PE0x | Preparative | ECVA20L Valve-Selector (External; 6+1; 1/4"; UNF 1/2"–20; 100 PSI; C45R-9146D) | C45R-9146D |
| Selector/Switching 2-position Valves for Gas Chromatography | |||
| VCG6SA0x | ECVA20G Valve-Injector (External; 2×6; 1/16“; UNF 10–32; 300 PSI; standoff 6“; DC6WT) | DC6WT | |
| VCG1SA0x | ECVA20G Valve-Injector (External; 2×10; 1/16“; UNF 10–32; 400 PSI; standoff 4“; DC10UWE) | DC10UWE |
| Safe Shutdown | In case of power failure valve position preserved |
|---|---|
| Transition Time | between 2 positions - only 95 ms (for selected valve types) |
| Control | RS232 (Canon DB9 male), External interface, after connecting an additional ERVIN module-also USB and LAN (not included in price) |
| Dimensions W x H x D | 63.5 x 83 x 109 mm (2.5 x 3.27 x 4.3 Inch) |
| Weight | 1.250 kg (2.755 lb) |
| Power input | 24-30 VDC, min. 1A. Power connector coaxial 5.5 / 2.1 mm, center pin positive |
| Filename | Type |
|---|---|
| Manual-ECVA20L_ECVA20G_External-cz-00.pdf | pdf (1,57 MB) |
| Manual-ECVA20L_ECVA20G_External-en-00.pdf | pdf (1,57 MB) |
| Info-Valve-Actuator-External-en | pdf (401,51 KB) |
| Valve_Actuator_Configuration_Guide | pdf (374,79 KB) |
ECOM is a global supplier of scientific and laboratory instruments for liquid chromatography. The company was established in October 1991 and it is focused on research, development, and manufacturing of scientific and laboratory equipment for liquid chromatography. Our innovative R&D and dynamic processes allow us to quickly react on customer’s needs and to propose customised products and solutions. ECOM’s focus on high quality products and responsive service supports high performance of its customers.
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