User guide

44 Advanced User Guide
2 Configuration
Valve Box
See “Unconfigured:” on page 26 and “Ignore Ready =” on
page 25.
The valve box mounts on top of the column oven. It may contain
up to four valves mounted on heated blocks. Each block can
accommodate two valves.
Valve positions on the blocks are numbered. We suggest that
valves be installed in the blocks in numeric order.
All heated valves in a valve box are controlled by the same
temperature setpoint.
To assign a GC power source to a valve box heater
1 Unlock the GC configuration, press the [Options] key, select
Keyboard & Display and press the [Enter] key. Scroll down to
Hard Configuration Lock and press the [off] button.
2 Press [Config], scroll to Valve Box and press [Enter].
3 With Unconfigured selected, press [Mode/type], select one of
the following and press [Enter].
• Install heater A1 - for a valve box containing a single heater
plugged into the connector labeled A1 on the valve box
bracket.
• Install Heater A2 - for a valve box containing a single heater
plugged into the connector labeled A2 on the valve box
bracket.
• Install 2 htr A1 & A2 - for a valve box containing two heaters
plugged into the connectors labeled AI and A2 on the
valve box bracket.
The valve box bracket is located inside the GC right side
electrical compartment in the upper right location.
4 When prompted by the GC, turn the power off then on again.
This completes the configuration of the valve box. To set the
valve box temperature for your method press the [valve #] key,
and scroll to Valve Box.