Installing and Controlling Third-Party Devices
Merck Hitachi AS2000 and AS4000 Autosamplers: Installation

Hardware Installation

Device Connection:

Use a special RS-232 cable (see  Merck Hitachi Cable) to connect the Merck Hitachi AS2000 and AS4000 Autosamplers.

Device Settings:

 Caution:

For information about communication via the serial interface, refer to the manual for the respective autosampler. Especially note the settings of the 6-fold communications DIP switch on the instrument's rear.

For the COM mode (serial communication), the following settings are required on the AS4000/AS2000:

 

Switch    1    2     3     4     5     6

             Off  On  On  Off  Off  Off

 

Communication is enabled with the following parameters: 4800 baud, 7 data bits, even parity bit, and 2 stop bits.

 

Software Installation

Install the Device Driver in the Chromeleon Server Configuration. (For more information about the program, refer to Software Installation and Communication  The Server Configuration Program.)

  1. Start the Chromeleon server.

  2. Start the Server Configuration program.

  3. Add the autosampler to the timebase. Select Add Device on the Edit or context menu, and then select Hitachi (or Merck) from the Manufacturers list box and AS2000 Autosampler (or AS4000 Autosampler) from the Devices list box.

  4. The following settings are required:

On the General tab page, select the COM port to which the autosampler is connected. In addition, disable the Demo Mode.

The Error Levels tab page classifies the severity of any errors that occur. It is generally not necessary to change the default settings.

  1. To control the Merck Hitachi AS2000 or AS4000 Autosampler, connect the AS2000.pan or AS4000.pan Control Panel in the Chromeleon client to the corresponding timebase.

Application

Differences between AS 4000 and AS2000

The two autosamplers AS2000 and AS4000 differ in three parameters only:

 

Parameter

AS2000

AS4000

Sample number

100

200

Dilutor number

2

1

Syringe size (µl)

500

5000

 

Also, refer to:

 Merck Hitachi AS4000: Program Example

 Merck Hitachi Autosampler Settings and Commands

Further Information

 Tip:

For more installation details, refer to the manual for the instrument.

For an overview of the autosamplers, refer to  Merck Hitachi AS2000 and AS4000 Autosampler: Overview.

For information about the L7250 and L7200 Autosamplers, refer to  Merck Hitachi L7250 Autosampler: Overview and  Merck Hitachi L7200 Autosampler: Overview.

For an overview of the different Merck Hitachi instruments that can be controlled by Chromeleon, refer to  Merck Hitachi.