Edwards EDS200

5.1 Opon 1
1. Flush the pump for c
onnuous 10 minutes. Do this procedure once.
2. Make sure that during the operaon, the motor current does not exceed 1.2 mes
the maximum motor current.
5.2 Opon 2
1. Flush the pump for 1 minute.
2. Wait for 3 minutes.
3. Repeat step 1 and step 2 up to 5 mes.
4. Make sure that during the operaon, the motor current does not exceed 1.5 mes
the maximum motor current.
Refer the Table: Maximum allowable ow rates for the maximum ow rates (water as a
solvent) of the pump for the two ushing opons.
Table 2 Maximum allowable ow rates
Pump
Inlet pressure
P
#
(mbar)
Opon 1 Opon 2
Solvent o
w
(l/min)
Liquid phase
r
ao
*
(out/in)
Solvent o
w
(l/min)
Liquid phase
r
ao
*
(out/in)
EDS200 60 0.7 ≈ 0.8 3.3 ≈ 0.9
EDS300 50 1.8 ≈ 0.9 3.3 ≈ 0.85
EDS480
30 2.5 ≈ 0.9 3.3 ≈ 0.85
# with inlet purge kit.
* measured with wat
er.
5.3 Seng the ow rate
If you select to use a solvent other than water, it is required to set a ow rate that will
maximise the cleaning eect and does not cause distress in the pump. The procedure to
set a ow rate is as follows:
1. Make sure that the inlet purge kit (if installed) is open to achieve inlet pressure of
ar
ound 30 to 60 mbar at the inlet of the pump.
2. Close the manual valve on the owmeter.
3. Open the solenoid valve.
4. Open the manual valve unl you get the required ow rate.
5. Start the mer. While the solvent ows, make sure that the pump is operang
normally and the motor current is less than the maximum allowable motor current
(depending on the solvent ush opon chosen).
6. If the noise level rises and the pump makes a metallic "pinking" noise, the pump
ma
y be in distress.
05/2021 - ©Edwards Limited
Page 17A41892880_C
A41892880_C - Commissioning