Due to continuous improvement, Triatek reserves the right to change product specifications without notice.
may also be temporarily overridden using the built-in diagnostic tools for
troubleshooting during the installation and commissioning phase.
The HMS-1650 provides four
Digital Inputs
that may be used for
monitoring sash switches, override switches, flow switches, occupancy
sensors or other devices with binary outputs. The configuration and
operation of each input may be configured by the user to define
the effect of a change in its state. Each digital input may have a
programmable delay duration associated with it. Each digital input may
be configured for either normally-closed or normally-open operation, and
may also be configured to be active-high or active-low triggered. The
global configuration of the digital inputs is field selectable through the
use of a configuration switch on the controller unit.
The HMS-1650 provides four
Relay Outputs
, which may be configured
for either direct-acting or reverse-acting operation, and may have a
programmable delay associated to meet the specific needs of the
required application. A unique feature of the HMS-1650 is its ability to
trigger a relay output for the purpose of activating an optional automatic
sash closer device, thereby keeping an unattended fume hood with
an open sash safe for occupants of the lab. Each relay output may
also be temporarily overridden using the built-in diagnostic tools for
troubleshooting during the installation and commissioning phase.
The user may set up multiple multi-level
Passwords
to prevent
unauthorized or casual access to the HMS-1650 configuration settings.
Up to ten passwords of up to eight digits may be programmed, with
each having one of four associated access levels. Administrators and
Facility Management personnel may have unrestricted access, while
general staff may be assigned restricted access passwords which limit
the functionality of the user menus.
Fume hood operating mode selection of Occupied, Unoccupied, or
Standby may be protected using limited access passwords, thereby
eliminating the need for keylock switches and keys. However, an
Optional Keylock Switch
may be used to further control access to
change in operating modes.
The HMS-1650 provides a unique set of built-in diagnostics tools that
are extremely valuable for facilitating the troubleshooting process during
the installation and commissioning phase. Included in these built-in
diagnostics tools are
Manual Override
capabilities for both analog
outputs and relay outputs, and a comprehensive
Real-Time View
capability that allows the real-time values and states of each analog
and digital input and output to be displayed conveniently. This is an
extremely useful tool that facilitates the verification and certification
processes conducted by typical test and balance personnel during
the commissioning of the system. There are also options for storing
configuration settings and for restoring those settings, as well as
performing a complete restoration of the factory default configuration
settings.
The HMS-1650 touch-screen user interface incorporates an easy-to-use
Manual Override
capability that allows the unit’s analog and digital
outputs to be overridden independent of their proportional or PID loop
control operation. This is an extremely useful function that facilitates the
verification and certification processes conducted by typical Test and
Balance personnel during the commissioning of the system.
The HMS-1650 incorporates an innovative
Backplane/Backplate
assembly which greatly facilitates the installation process and permits all
wiring terminations to be permanent. The HMS-1650 serves as a direct
drop-in functional replacement for all previous models of HMS-1600
series of BACnet/N2 fume hood controllers.
Depending upon the actual model number ordered, the HMS-1650
may be accompanied by one of two types of sidewall sensor
modules for measuring face velocity. The standard sidewall sensor
includes a 9-pin pluggable terminal block connector, while the
Honeywell sidewall sensor includes a 3-position terminal strip.
See pages 13 through 14 for physical representations of the two
sidewall sensor options.
SUBHEAD
Overview
HMS-1650
Due to continuous improvement, Triatek reserves the right to change product specifications without notice.
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Triatek reserves the right to change product specifications without notice.
GENERAL
Triatek reserves the right to change product specifications without notice.