Powering On The Pump; Power-On Diagnostics - Waters 515 HPLC Operator's Manual

Powering on the pump

Tip:
If your 515 pump is connected to a Waters 680 Automated Gradient
Controller, and you power on the controller with the pump running in the
Remote mode, you may hear the pump operate briefly. This is due to a
spurious signal from the controller when it is powered on. To avoid this
situation, power on the controller before you power on the pump.
Make sure the pump is installed according to the instructions in
the Waters 515
displays the factory default setting for each of its operating parameters. See
the table titled "515 pump operating parameters" on page 3-7
details.
To power on the pump, locate the power switch on the left side panel and set it
to the 1 (ON) position. The power-on diagnostics begin.

Power-on diagnostics

Each time you turn power on, the pump automatically runs its internal
power-on diagnostics (the display does not indicate that the diagnostics are
running). The power-on diagnostics perform these tests and checks:
• EPROM check – Runs a checksum of the EPROM to confirm correct
EPROM data
• RAM test – Writes and confirms a series of bit patterns to the MPU
RAM
• MPU mode check – Confirms that the microprocessor unit is in the
correct mode
• FPGA configuration check – Confirms the proper configuration of the
Field Programmable Gate Array
• EEPROM check
EEPROM data
Once the unit successfully performs its internal power-on diagnostics, the
LCD display briefly (5 seconds) shows the pump model number (515), head
size (100-µL or 225-µL), and firmware version (Ver n.n). The display then
appears in its Ready state, as shown in the figure below. To redisplay the
1. In addition to running at power on, the EEPROM check runs every time you press the RUN/STOP key, and once
for every 5 hours that the pump has power.
3-2 Using the Waters 515 Pump
Pump". When the pump is powered on the first time, it
1
– Runs a checksum of the EEPROM to confirm correct
"Installing
for parameter