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iso ul New UL UniFlow Fume Hoods
Air Flow Monitors
airflow monitor digital airflow monitor vav controls
Air Velocity Monitor Digital Air Flow Monitor VAV Damper Controls
Continuously monitors face velocity air flow of fume hood. Select & calibrate at desired FPM velocity set point. If the hood face velocity falls below set point, an audible alarm sounds The AFA 1000/1/Mk2 model is a flush mounted air flow monitor for Fume Hoods. It features a back lit display that displays the air flow velocity or Air Flow status. Utilizes electronically actuated dampers within the ductwork to create and maintain optimal air flow. The VAV System includes the front mounted audio-visual alarm,
Analog Air Flow Velocity Monitors   btt

Fume Hood Air Flow Monitors are an inexpensive accessory for laboratory fume hoods to indicate the approximate face velocity of air flow, with the primary purpose of warning when a low air flow condition occurs.

• Display: Visual LEDs / Red = Alarm, Green = Normal

• When the air flow decreases from normal to low an audible alarm will activate, requiring manual acknowledgment to silence.

• Settings for alarms are individually adjusted for each fume hood to meet unique conditions

• Unit is mounted on the face of the fume hood side wall at a convenient viewing height.

• Audible Alarm: 75 dB between 3 & 10 feet

• Alarm Range: 30 to 400 FPM

• Horn Silence: Yes temporary and or permanent

• Accuracy: Face Velocity +- 10%

• Operating Temperature: 55 to 86 degrees F (- 40 to 65 degrees C) Power Requirements: 15 VDC 500 mA; 120 VAC, 60Hz power transformer included

• Relay Output Low Air Flow Alarm: 5 amps @ 250 VAC

• Relay Input for Night Setback: 2 wire rated for 24 VDC usage

• Sash High Indication: using a two wire micro switch or 3 wire proximity switch input rated for 24 VDC usage

Airflow Monitor
Cat. No. 51406
Analog Air Flow Monitors

Air Flow monitor designed for applications where airflow velocity indication is not required. The 51409 is available with either a built in or remote unique air flow sensor that is used to measure face velocities or duct velocities and is available in fully flush or semi flush mount.

• Red LED flashing will be displayed when the sash is raised above the maximum safe working opening, Red LED (not flashing) indicates low airflow an audible alarm sounds.

• Night set back, when the night set back is activated the audible alarm will be muted and the Green LED will flash on/off.

• Unit is mounted on the face of the fume hood side wall at a convenient viewing height.

• 2 Relay units configure able as ( Night Setback / Sash High )

• 1 Relay output for low air alarm

• Com Port RS232 for connections to a Laptop or PC for diagnostics

• Power Supply - Low voltage DC power supply 15V DC. Monitor is supplied complete with a plug in type power supply for connection to a single gang socket. The main supply should be fused 3A.

• Air Flow Sensor- Monitor is supplied with a remote type air flow sensor and has a plug in RJ11 socket on the rear of the case to accept the sensor cable

• Vent - can be supplied for connection to the Fume Hood inner side wall, consisting of M1 of 25mm vent tube, a 25mm bush and coupling and box lid

• Sensor Cable- standard length of remote type sensor cable is 2M, a 5M version is also available. Custom sizes can be supplied.

• Comms- Monitor can be supplied with configuration software and cable for connections to a laptop for diagnostics and configuration of the monitor or for connection via a local Modbus
RTU network for remote logging

Airflow Monitor
Cat. No. 51409
Digital Air Flow Monitors   btt

The 51410 model is a flush mounted air flow monitor for Fume Hoods. It features a back lit display which displays the air flow velocity or air flow status. When the alarm is activated, the display will alternate between the air flow velocity and the alarm condition.

• Visual screen displays the air flow velocity or air flow status ( Air Safe / Air Fail)

• Audio Visual Alarm, an Audible alarm with Red, Amber & Green LEDs

• Password protected push button set-up and calibration menus with on screen instructions

• Unit is mounted on the face of the fume hood side wall at a convenient viewing height.

• 3 Relay units configurable as ( Night Setback/ Alarm Disable/Sash Hig /External Alarm High Low )

• Com Port RS485 for connections to a Laptop for diagnostics and configuration of the monitor, or for connection via a local Modbus RTU for remote logging with real time graphical displays using the AFA Network software or direct connection to a BMS system

•Power Supply - Monitor is supplied complete with a plug in type power supply for connection to a single gang socket. The mains supply should be fused 3A. A desktop style power supply can be supplied with flying mains lead for connections to a fused spur or terminals

• Vent - can be supplied for connection to the Fume Hood inner sidewall, consisting of M1 of 25mm vent tube, a 25mm Bush and coupling and box lid

• Sensor Cable- standard length of remote type sensor cable is 2M, a 5M version is also available. Custom sizes can be supplied.

• Comms- Monitor can be supplied with configuration software and cable for connections to a laptop for diagnostics and configuration of the monitor or for connection via a local Modbus RTU network for remote logging

digital airflow monitor
Cat. No. 51410
VAV Damper Controls   btt

• Utilizes electronically actuated dampers within the ductwork to create and maintain optimal air flow.

• The VAV System includes the front mounted audio-visual alarm, electronic actuated damper controller and wall-mounted sensor, transformer, and calibration.

• Night set back, emergency airflow, mute of audible alarm, and self-test mode are standard features of the unit.

  everwatch
    Cat. No. 51401
     
  HEMCO Corporation 711 S. Powell Road Independence, MO 64056 816-796-2900 800-779-4362
    Copyright © 2010 HEMCO Corporation All Rights Reserved