Instruction Manual
K SERIES Cryostorage System
IM: CryoCeK
Revision: 02
Approved by: CB
Page
50
of
87
Alarm signal Generation Delay (Local Alarm signals)
Local alarm signals are generated within 5 (five) seconds of the alarm condition occurring.
The exception is the Extra High alarm. This has a delay which may be programmed from 0 to 120
seconds. This may be used to limit false alarms during the initial stages of refilling.
Alarm signal Generation Delay (Remote Alarm signals)
The time from an alarm occurring to a remote alarm being generated is programmable and should be
adjusted by Worthington Industries.
If the delay is set to zero the remote relay will de-energise within 5(five) seconds of the alarm
condition.
Characteristics of Visual Alarm signals
An Alarm condition is visually indicated by a flashing red LED located in the ‘Mute’ key (switch 2).
Alarms are acknowledged by pressing this key.
When Alarms are ‘Acknowledged’ the LED changes
to a steady state. If further Alarms occur the LED reverts to flashing.
Pressing the Mute key also displays the current alarm state(s) on the character display. If more than
one alarm is present these are displayed in sequence. Longer alarm messages are scrolled across
the display.
Pressing the Mute key also toggles the character display between its normal status display
(temperature and level), and the alarm display.
If the alarm has been muted the sounder may be re-activated by pressing
the ‘Undo’ key (switch 4).
Volume and characteristics of Audible Alarm signals
An alarm condition is audibly indicated by a sounder mounted behind the controller fascia panel.
The alarm tone, burst sequence and volume comply with EN60601-1-8.
Volume was measured as 57.5 dB (M506CE) and 62.7 dB (M506CE-B) when measured in
accordance with the standard.
Volume is not adjustable. The alarm may be silenced by pressing the mute switch. (See above)
New alarms will re-activate the sounder.
Latching/Non latching Alarm signals
All alarms are non- latching except the General Alarm. This will latch until the controller is restarted.
Unauthorised Access.
This is
reset by entry of the operator’s code.