Maguire Products VBD-150 Installation Operation & Maintenance page 28

VBD® - Vacuum Dryer®
28
Material Temperature Alarm - When the Material Temp alarm is
enabled, during any instance where the Heating Hopper is called
upon to dispense material into the vacuum chamber and the T2
(heating hopper exit) temperature is below the ESM parameter
level, this alarm will trigger. Its purpose is to alert the operator that
insufficient heating has occurred, most likely from a process
throughput that exceeds the capacity of the VBD.
ON: When the Material Temperature Alarm is
enabled,.
OFF: Disables the Material Temperature Alarm
Residence Alarm (labeled "Residence") -
is enabled, an alarm will sound if dried material has sat in the
retention hopper too long. The RAL parameter determines when a
residence alarm will occur based on elapsed time and weight of
remaining material in the retention hopper. See the RAL parameter
for more information.
ON: When the Residence Alarm is enabled, the
alarm will sound when this alarm is triggered.
OFF: Disables the Residence Alarm
Throughput Alarm (labeled "Thruput") -
enabled, the alarm will sound if the material in the Retention Hopper
is used faster than the dryer can produce dried material. (Material
level reaches RTL parameter before the Vacuum Time Setting
expires VTS parameter)
ON: If the Throughput alarm is enabled, the alarm
will sound when this alarm is triggered.
OFF: Disables the Throughput alarm
VC Dump (Vacuum Chamber Dump) Alarm -
Dump alarm is enabled, the dispensing of material from the vacuum
chamber into the retention hopper is monitored using the CDR
(Chamber Dump Retries) parameter. CDR's default settings of
05003 requires that at least 50% of the material that is in the
vacuum chamber be detected in the retention hopper after the
dispense. If it's under 50% the dispense will retry 3 times before
triggering the alarm. Retries will continue indefinitely until 50% is
satisfied.
ON: If the Vacuum Chamber Dump alarm is
enabled, the alarm will sound when this alarm
Rev. August 31, 2016 – VBD-150
Maguire Products, Inc.
When the Residence Alarm
If the Throughput alarm is
If the Vacuum Chamber