Due to continuous improvement, Triatek reserves the right to change product specifications without notice.
Triatek’s HMS-1655 Fume Hood Controller is an ultra-sensitive
instrument used to monitor and/or control the fume hood face velocit,
and is capable of measuring and displaying face velocities from zero to
200 ft/min (1.016 m/sec) with an accuracy of ±2 ft/min.
Key features of the HMS-1655 include:
• Three selectable control modes available: sidewall only, sash position
only, sash with sidewall for closed-loop performance
• Comprehensive closed-loop sash control with sidewall velocity sensing
• Full-color touchscreen display with programmable display options and
adjustable backlight
• Intuitive user interface simplifies setup and configuration of unit
• Safety Halo™ provides full 180ovisibility from anywhere in laboratory
• Audible and visual alarms
• Auxiliary universal analog inputs for use with optional sensors
• Four independent proportional-integral-derivative (PID) control loops
for controlling damper actuators, speed drives, hot water valves,
humidifiers, etc.
• Digital input used to monitor an optional fume hood sash switch, zone
presence sensor or emergency override switch.
• Relay outputs used for transmitting alarm condition to remote location
• Dedicated thermistor inputs for temperature monitoring and/or control
applications
• Multi-level password protection of touchscreen user interface
• Field calibration of both sidewall velocity sensor and optional sash
position sensor
• Multi-protocol native (BACnet®, Metasys® N2) for easy integration
with any building management system (BMS)
• Manual override of analog and relay outputs assist with test and
balance procedures
• Comprehensive real time view diagnostics tool displays built into each
unit
• Easy-to-install backplane/backplate assembly facilitates permanent
termination of all wiring
The HMS-1655 has bold, modern graphics and integrates Triatek’s
signature Safety Halo™ status indicator. This feature significantly
enhances the alarm status indication of the HMS-1655 by providing full
180° visibility of the color-coded hood statuses.
Not only can you see the status while standing directly in front of the
fume hood, you can now have full visibility from virtually anywhere in
the laboratory. The HMS-1655’s Safety Halo™ is shipped from the
factory enabled at full brightness, but may be dimmed or even disabled
completely.
The HMS-1655 is equipped with a 3.2” diagonal full-color touchscreen
display in portrait orientation (240 x 320). The password-protected menu
tree is very intuitive and simplifies the setup and configuration of the unit.
The menus incorporate touch-based interfaces such as sliders, radio
buttons, and dialog popups to facilitate the ease-of-use of the HMS-
1655.
The display implements bright graphical color changes to indicate the
three different alarm status indication of the monitored fume hood. These
graphical backgrounds indicate “Normal” when the face velocity is within
defined limits, “Warning” when the face velocity is approaching an out-of-
limits condition, and “Alarm” when the face velocity is outside the defined
acceptable and safe limits. The face velocity ranges for these conditions
are easily configured by the user for the specific installation, either
directly from the touchscreen display or over the network from the BMS.
Alarm conditions may be defined by the user, in terms of desired face
velocity settings for the fume hood being monitored. When an alarm
condition occurs, it may be annunciated in four user-definable ways: 1)
on the display, 2) with an audible alarm, and 3) transmitted via contacts
to a remote monitoring location and 4) over the BMS network. The alarm
will automatically reset when the unit has sensed that the fume hood
face velocity has returned to proper limits. The operator may easily mute
the audible alarm by tapping the Alarm Audible button at the bottom of
the touchscreen display.
The HMS-1655 provides four universal analog outputs, which may be
configured for either current loop operation or for voltage operation. Each
analog output may be configured for proportional operation to provide
a linear signal to the BMS, or for PID control operation for closed-loop
feedback control of damper actuators, variable frequency (speed) drives,
hot water valves, humidifiers, or other analog-controlled devices.
Each universal analog output may be field-configured for the required
application using onboard configuration dipswitches on the controller
module. Each analog output may also be temporarily overridden using
the built-in diagnostic tools for troubleshooting during the installation and
commissioning phase.
For those applications requiring monitoring and/or control based on
temperature variances, the HMS-1655 provide two dedicated thermistor
GENERAL
Overview
HMS-1655
Triatek reserves the right to change product specifications without notice.
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Triatek reserves the right to change product specifications without notice.
