Summary of Contents for Idex Rheodyne MX II Series
Page 1
MX Series II Operating Manual MX Series II Modular Automation for Nano and Analytical Scale HPLC And Low Pressure Fluid Switching Applications Page 1 of 29 2321497A...
Introduction MX Series II Modules are self-contained automated valves available in a variety of flowpaths for use in many applications. For multiple valve applications, the MX II’s unique “Snap n’ Stack” system allows Modules to be stacked on top of each other or connected side to side to conserve bench space and reduce tubing connection volumes.
MX II Flowpaths Two-Position Four Port Six Port MXP7984-000 Nano scale (DuraLife MXT715-000 (Ultralife , this model has MBB) MXP7900-000 (DuraLlife MXP9900-000 (PEEK) MXP7980-000 Nano scale (DuraLife MXX777-601 (RPC-7) MXX777-612 (RPC-7) Six Port- Six Port- Vertical Port for Sample injection Center Port for Sample injection MXP9925-000 (PEEK) MXP7920-000 (DuraLlife...
Installation Cautions • Use only contact closure, I C, or USB for connections from your instrument or computer to the MX Series II Module. • Do not supply more than 24 VDC to the MX Series II Module or it will be damaged.
Electrical Connections • Plug the Universal Power Supply male barrel connector into the MX Module female port. • Plug the female connector of the Power Cord into the Universal Power Supply. • Plug the opposite end of the Power Cord into a properly grounded power source.
Page 9
Rheodyne MX II (2321500). For additional information on USB and I communications see documents 2321382 and 2321383 respectively. Interface Cable Connection for Remote Operation via Instrument • Connect the interface cable to the mating connector on the back of the MX Series II Module.
• Connect wire #9 from the MX Series II interface cable to the controlling instrument event relay 1 (R1). • Connect wire #8 from the interface cable to event relay 2 (R2). • Connect wire #7 from the interface cable to event relay 3 (R3). •...
Operation Control Panel Overview The MX Series II Module control panel is shown in figure 3. • (1) Remote Button • (2) Remote Indicator Light • (3) Manual Forward Position Selector Button • (4) Manual Backward Position Selector Button Figure 3 . MX Series II Control Panel Local or Manual Operation •...
Page 12
Program 1 Time Relay 1 Comments Initial Open Valve is in Position 1 Closed Valve moves to Position 2 Open Valve moves to Position 1 b) 4-line BCD control (for all valve models) - The instrument used to control these models must have four contact closure outputs.
Program 2 Time Relay 1 Relay 2 Relay 3 Relay 4 Comments Initial Closed Open Open Closed Valve is in Position 6 Open Closed Closed Closed Valve moves to Position 1 Closed Open Closed Closed Valve moves to Position 2 Open Open Closed...
Page 14
g) For 2 position valves only- Click on the configuration tab. h) In the Set Control Method list box select BCD i) Click the Set Control Method button. Page 14 of 29 2321497A...
Page 15
j) Unplug the power to the MX Series II Module. k) Wait 10 seconds. Re-plug in the power to the MX Series II Module and press the Read Control Method button. l) If it does not return BCD in the box next to the button repeat steps g-l. m) For all valves- Click the Position Control tab.
Page 16
You may now use the mouse to click the position buttons to change the position of your valve. Note- the valve will not respond to positions unavailable on your model. Page 16 of 29 2321497A...
Page 17
2. Using the Timed Events Table (This mode of control should not be used when the MX Series II module is being controlled by another instrument. In that case use the timed events table from the controlling instrument.) a) Click on the Timed Events Tab. b) If you wish to set the starting position of the valve enter 0 (zero) in the first time field.
Page 18
c) Continue inputting the times (in seconds) when you wish the valve to change positions and the position it should move to on the adjacent line until you have completed your program. (You may use up to 20 timed events. Times may be entered to the tenths of a second.) d) When you are ready to begin your program click run.
Page 19
f) Please note that the events must be listed in chronological order or an error will occur and the program will terminate at the point of the error. g) If an invalid position is requested this will also result in an error which will stop the program at that point.
Maintenance Electrical Maintenance • If an electrical problem is encountered, please consult Electrical Connections on page 8 and Troubleshooting on pages 21-25. If the problem persists contact your vendor for assistance. • No routine maintenance is required for the electronic components. Valve Maintenance With normal use the MX Series II Module will provide tens of thousands of cycles.
Rapid Replacement Pod *Please note that MXP and MXT Pods are not interchangeable. • Disconnect all tubing and sample loops prior to Rapid Replacement Pod removal. For MXP Models: • Insert the Pod Popper tab in any of the Rapid Replacement Pod slots. Spanner nut •...
Page 22
For MXT Models: • Turn the Spanner nut counterclockwise to remove. • Gently pull the Rapid Replacement Pod from the MX Series II Module. • Take the Rapid Replacement Pod and insert into the MX Series II Module, rotate until the unions within the actuator and the Rapid Replacement Pod engage.
Definitions Contact Closure Line Control Also known as open collector or relay. It This is a remote control scheme simply means there is no connection employing separate wires. Each wire is when the circuit is open. The line is used with a common ground to send either grounded (CLOSED) or not signals controlling a device.
Page 24
Universal Power Supply Abbreviation for Transistor-Transistor- This is the adapter that converts Logic, also called digital logic. A control electrical power from a wall socket to line is either HI (+5 volts) or LO(0 volts). usable power to run the MX Series II Typical OFF state of an instrument's Module.
Troubleshooting Symptom Cause Solution 1. Valve leaks A: The Rotor Seal and/or Replace the Rotor Seal and Stator between the Stator Face Seal may Face Seal using the MX Series II ® Stator and Stator have been damaged by Module RheBuild Kit available from Ring or from a abrasive particles in the...
Page 26
3: Remote A: Problems arise when See Flow Chart on Troubleshooting Control attempting to use Input Remote lnput Line Control on page Problems Line Control. B: Problems arise when See Flow Chart on Troubleshooting attempting to use USB Remote USB Software Control on Control.
Need help?
Do you have a question about the Rheodyne MX II Series and is the answer not in the manual?
Questions and answers