5
5. CALIBRATION AND MAINTENANCE
5.1. TEST MODE
If the jumper link marked W3 on the PWB is removed,
the system will run in a test mode in which the timers
will run at 60 times the normal rate. For example, a
period set to 3 hours will actually elapse in 3 minutes.
This is useful for checking system operation.
WARNING Remember to reinstall W3 after
testing.
5.2. STORAGE AND SHIPPING
DANGER
Isolate the controller from the mains
power supply before removing the
cover.
With the CryoSecure disconnected from the mains
supply, remove the top cover and locate the sealed,
rechargeable, lead-acid battery (to the left of the unit as
viewed from the front). Disconnect the red lead to the
battery, wait 10 seconds, then re-connect it. The battery
will now be isolated from the control circuitry until mains
power is reapplied.
