Method for distinguishing the different ECD-2010 Exceed flow paths
Different ECD-2010 Exceed flow paths¶
The ECD-2010 Exceed has two flow lines, flow path A (left side of figure below) and flow path B (right side of figure below).
Flow path A emphasizes sensitivity, and flow path B emphasizes durability.
- APC(Gas flow controller)
- MS Filter
- ECD cell
In flow path A, a total of 2 pipes are connected to the ECD cell, with gas entering through one line and gas exiting through another. (The part indicated by ★ 1 in the figure)
In flow path B, a total of 3 pipes are connected to the ECD cell, with gas entering through 2 lines and gas exiting through another line. (The part indicated by ★2 in the figure)
Confirmation method¶
Step 1¶
On the instrument monitor or workstation, check that the temperature of the column oven is lower than 40 °C, and check that the temperatures of the injection port and detector are 50 °C or lower.
After checking the temperatures, turn OFF the main power to the instrument.
Step 2¶
Open INJ/DET cover (★1).
Step 3¶
Determine the flow path by checking the number of pipes (2 or 3) connected to the ECD cell. (The part indicated by ② in the figure below)
- When the number of pipes is 2 : Flow path A
- When the number of pipes is 3: Flow path B
①ECD cell
②ECD connection piping (The photo above is an example of connecting two pipes.)
Graphite ferrule jig.¶
The column insertion length is different for path A and path B.
Attach the graphite to the column using the appropriate
graphite ferrule jig
.
Flow path A:Column insertion length 43mm¶
P/N:221-48610-07 ,Graphite ferrule jig, ECD_43mm
Flow path B:Column insertion length 32mm¶
P/N:221-48610-04 Graphite ferrule jig, ECD_32mm