Maguire Products VBD-150 Installation Operation & Maintenance page 39

VBD® - Vacuum Dryer®
Vacuum Parameters
VTS Vacuum Time Setting (Time in minutes) – 00020
The length of a vacuum cycle in minutes.
VPL Vacuum Pressure Low (mm Hg abs.) – 00080
The pressure (absolute mm, absolute inches, differential mm, differential inches) at
which the vacuum system will attempt to attain before stopping and holding said
pressure. Default shown is absolute mm.
VPD Vacuum Pressure Delta (mm of mercury) – 00020
The pressure difference above VPL at while the vacuum generator turns back on.
This value is the mm of mercury above VPL.
VSO Vacuum Shutdown Offset – Seconds – 00015
Amount of time in seconds before the Vacuum Timer Setting (VTS) expires at
which time Vacuum Chamber equalization will commence.
LVT Low Vacuum Timeout – Seconds – 00120
Time in seconds that the vacuum generator will run before a LOW VACUUM
ALARM is triggered. Vacuum generator continues to attempt to pull a target
vacuum pressure after alarm sounds.
NVT No Vacuum Timeout (retries, time in seconds) – 00345
The first three digits are the number of retries that the vacuum gates will cycle if
vacuum is not achieved. During a retry the vacuum gates are cycled opened and
closed. The last two digits Amount of time in seconds the chamber pressure must
reach 200mm of mercury below atmosphere to not trigger a retry.
VPT Vacuum Purge Timer – seconds – 00005
During equalization of the Vacuum Chamber, this is additional time in seconds
beyond calculated atmospheric pressure, to allow for true pressure equalization.
VPI Vessel Purge Interval – seconds/seconds – 15180
Frequency and duration of dry air purge of the Vacuum Chamber. Default is a
frequency of 3 minutes (180 seconds) for a purge duration of 15 second.
ATM Atmospheric Pressure – mm Hg (absolute) – 00760
The measured ambient atmospheric pressure. This parameter is updated once per
cycle. Do not change this parameter.
System Parameters
Event Logging Time (Time in seconds) – 00060
ELT
Time in seconds between logging data (when logging is enabled).
Rev. August 31, 2016 – VBD-150
Maguire Products, Inc.
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