Taylor-Wharton KRYOS Controller - Manual (Page 36)

34
KRYOS
Defog Feature Will Not Operate
See LID OPEN ALARM.
To activate or adjust times: Select MENU, USER OPTIONS, CONTROL OPTIONS,
LID/DEFOG SETTINGS, AUTO DE-FOG.
Push Buttons Will Not Respond
1. Check all ribbon cable connectors on back of display panel.
2. Moisture may have migrated into the sealed faceplate. Call Taylor-Wharton for
a Return Authorization. Refer to the Service and Maintenance Log on the last
page of this manual to get the contact information you will need to return any
equipment.
Liquid Level Readout is Incorrect
Liquid level is determined by a seven-thermistor assembly inside a protective
sensor tube. The user may adjust the desired START FILL elevations and STOP FILL
elevations for the pool of nitrogen with the confines of the four inches. The LOW
LEVEL ALARM is automatically assigned to the thermistor below the START FILL
assignment, and the HIGH LEVEL ALARM automatically reserves the thermistor
above the STOP FILL thermistor assignment. For this reason START FILL cannot
be assigned to thermistor number 1. Similarly, STOP FILL cannot be assigned to
thermistor number 7. The factory installs this seven thermistor assembly all the
way to the floor of the sensor tube, which positions thermistor number 1 at 1 in.
(25.4 mm) above the floor (i.e.; the first thermistor is offset from the floor
zero inches).
If you would like to stop the fill at a depth greater than seven inches from the
floor, the sensor assembly must physically be raised inside the sensor tube. The
distance that it has been raised becomes the new OFFSET and the controller
must be notified of this offset from the floor. The factory settings are START FILL
at 3 inches and STOP FILL at 5 inches, with an OFFSET of zero. If you want to
establish a START at 15 and STOP at 17, raise the sensor assembly 12 inches
(17 minus 5) and set the controller OFFSET to 12 by: Selecting MENU, LEVEL
SENSING, SET SENSOR OFFSET. The unit should begin filling. The EX-LOW LEVEL
sensor has been subjected to the gaseous condition and should sound an alarm
(O.K. to MUTE). Note that in this scenario, you have directed your LN
2
supply
to accomplish a 15 inch fill level. It may be necessary to stop the fill manually
and allow the supply vessel time to regain enough pressure to complete this
exceptionally long initial fill.
For Liquid Level information and senor positioning, refer to pages 25-26.
Power Failure Alarm
If power is interrupted, a note of the time and duration will be recorded in the log.
If the unit is not connected to a battery back-up or an external alarm, then no local
alarm will be sounded unless a high temperature is detected after power resumes. A
Remote Alarm will be triggered anytime the power is interrupted.
34
KRYOS
Defog Feature Will Not Operate
See LID OPEN ALARM.
To activate or adjust times: Select MENU, USER OPTIONS, CONTROL OPTIONS,
LID/DEFOG SETTINGS, AUTO DE-FOG.
Push Buttons Will Not Respond
1. Check all ribbon cable connectors on back of display panel.
2. Moisture may have migrated into the sealed faceplate. Call Taylor-Wharton for
a Return Authorization. Refer to the Service and Maintenance Log on the last
page of this manual to get the contact information you will need to return any
equipment.
Liquid Level Readout is Incorrect
Liquid level is determined by a seven-thermistor assembly inside a protective
sensor tube. The user may adjust the desired START FILL elevations and STOP FILL
elevations for the pool of nitrogen with the confines of the four inches. The LOW
LEVEL ALARM is automatically assigned to the thermistor below the START FILL
assignment, and the HIGH LEVEL ALARM automatically reserves the thermistor
above the STOP FILL thermistor assignment. For this reason START FILL cannot
be assigned to thermistor number 1. Similarly, STOP FILL cannot be assigned to
thermistor number 7. The factory installs this seven thermistor assembly all the
way to the floor of the sensor tube, which positions thermistor number 1 at 1 in.
(25.4 mm) above the floor (i.e.; the first thermistor is offset from the floor
zero inches).
If you would like to stop the fill at a depth greater than seven inches from the
floor, the sensor assembly must physically be raised inside the sensor tube. The
distance that it has been raised becomes the new OFFSET and the controller
must be notified of this offset from the floor. The factory settings are START FILL
at 3 inches and STOP FILL at 5 inches, with an OFFSET of zero. If you want to
establish a START at 15 and STOP at 17, raise the sensor assembly 12 inches
(17 minus 5) and set the controller OFFSET to 12 by: Selecting MENU, LEVEL
SENSING, SET SENSOR OFFSET. The unit should begin filling. The EX-LOW LEVEL
sensor has been subjected to the gaseous condition and should sound an alarm
(O.K. to MUTE). Note that in this scenario, you have directed your LN
2
supply
to accomplish a 15 inch fill level. It may be necessary to stop the fill manually
and allow the supply vessel time to regain enough pressure to complete this
exceptionally long initial fill.
For Liquid Level information and senor positioning, refer to pages 25-26.
Power Failure Alarm
If power is interrupted, a note of the time and duration will be recorded in the log.
If the unit is not connected to a battery back-up or an external alarm, then no local
alarm will be sounded unless a high temperature is detected after power resumes. A
Remote Alarm will be triggered anytime the power is interrupted.
34
KRYOS
Defog Feature Will Not Operate
See LID OPEN ALARM.
To activate or adjust times: Select MENU, USER OPTIONS, CONTROL OPTIONS,
LID/DEFOG SETTINGS, AUTO DE-FOG.
Push Buttons Will Not Respond
1. Check all ribbon cable connectors on back of display panel.
2. Moisture may have migrated into the sealed faceplate. Call Taylor-Wharton for
a Return Authorization. Refer to the Service and Maintenance Log on the last
page of this manual to get the contact information you will need to return any
equipment.
Liquid Level Readout is Incorrect
Liquid level is determined by a seven-thermistor assembly inside a protective
sensor tube. The user may adjust the desired START FILL elevations and STOP FILL
elevations for the pool of nitrogen with the confines of the four inches. The LOW
LEVEL ALARM is automatically assigned to the thermistor below the START FILL
assignment, and the HIGH LEVEL ALARM automatically reserves the thermistor
above the STOP FILL thermistor assignment. For this reason START FILL cannot
be assigned to thermistor number 1. Similarly, STOP FILL cannot be assigned to
thermistor number 7. The factory installs this seven thermistor assembly all the
way to the floor of the sensor tube, which positions thermistor number 1 at 1 in.
(25.4 mm) above the floor (i.e.; the first thermistor is offset from the floor
zero inches).
If you would like to stop the fill at a depth greater than seven inches from the
floor, the sensor assembly must physically be raised inside the sensor tube. The
distance that it has been raised becomes the new OFFSET and the controller
must be notified of this offset from the floor. The factory settings are START FILL
at 3 inches and STOP FILL at 5 inches, with an OFFSET of zero. If you want to
establish a START at 15 and STOP at 17, raise the sensor assembly 12 inches
(17 minus 5) and set the controller OFFSET to 12 by: Selecting MENU, LEVEL
SENSING, SET SENSOR OFFSET. The unit should begin filling. The EX-LOW LEVEL
sensor has been subjected to the gaseous condition and should sound an alarm
(O.K. to MUTE). Note that in this scenario, you have directed your LN
2
supply
to accomplish a 15 inch fill level. It may be necessary to stop the fill manually
and allow the supply vessel time to regain enough pressure to complete this
exceptionally long initial fill.
For Liquid Level information and senor positioning, refer to pages 25-26.
Power Failure Alarm
If power is interrupted, a note of the time and duration will be recorded in the log.
If the unit is not connected to a battery back-up or an external alarm, then no local
alarm will be sounded unless a high temperature is detected after power resumes. A
Remote Alarm will be triggered anytime the power is interrupted.