Connect Probe/Solenoid Harness; Bus Control Panel - Thermo Scientific 700 Series Manual

Section 5
Factory Installed Options
Connect Probe/Solenoid

BUS Control Panel

5-4 7010708
1. Carefully coil the extra probe lead in the compressor compartment,
and secure it to the compartment wall with a tie wrap and tie wrap
Harness
anchor provided. Additional tie wraps and anchors may be used to
secure the probe lead to the exterior back wall of the freezer.
2. Loosen the terminal screws on the solenoid. Slide the spade lug
connectors under the screws and tighten to secure.
3. Connect power to the freezer. Turn the freezer On, with battery switch
Off (O).
a. The Solenoid Engaged light on the BUS control panel will
illuminate (no injection occurs). This light stays on until the unit
is below BUS setpoint.
b. The Low Battery indicator may also illuminate.
4. Turn the battery switch to Standby mode ( ) to charge both batteries.
The following section describes the configuration and operation of the
BUS.
Warning When activated, this unit injects liquid nitrogen or carbon
dioxide. Liquid nitrogen can cause serious freezing (frostbite) if it comes
in contact with unprotected skin or eyes. Nitrogen suppresses oxygen
levels and may cause suffocation if area is not well ventilated. Refer to
Appendix A for the proper handling of liquid LN
Caution Make sure the pressure relief valve on any LN
30 PSI maximum blow-off.
Warning Carbon dioxide gas suppresses oxygen levels and may cause
suffocation if area is not well ventilated. Refer to "Handling Liquid CO
Appendix B of this manual.
2
▲
▲
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tank is adjusted to
2
2
Thermo Fisher Scientific
in