AFA 500

The AFA 500 displays a green light when face velocity is in the user-defined acceptable range and a red light and audible alarm when it drops below the alarm set point.

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• Manual

• Troubleshooting guide

Product Specifications

Alarm range: 30-400 fpm (.15 -2.0 m/s).

Accuracy: Face velocity accuracy +/- 10%.

Airflow sensor: On-board or remote sensor.

Calibration: Single or 2-point (installer selectable).

Low air alarm delay: Fixed 5 seconds.

Relay output: 1 (low air alarm).

Analog output: Not available.

Relay input: 2 (night setback and sash high).

Communications Port: RS232 (can be connected via Serial interface to LAN network).

Sash high indication: Yes, using a micro switch or proximity switch input with repeat alarm feature factory set to 5 minutes (can be adjusted via computer up to 30 minutes).

Night setback: Yes, using a relay input.

External alarm indication: Not available.

Power Requirement Input: 120VAC, 60Hz.

Output: 15VDC, 500ma.

Display: Visual LEDs (red, alarm; green, normal).

Alarm indication: Red LED and audible alarm.

Horn silence: Yes, temporary.

Mounting: Semi-flush.

Operating temperature: 55 to 86°F (13 to 30°C).

Storage temperature: -40 to 150°F (-40 to 65°C).

Dimensions: Instrument Case: 5.71” H x 3.46” W x 1.38” D (148mm H x 88mm W x 35mm D).

Agency listings: CE.

Fume Hood Monitors: AFA 500 | 1000/1 | 1000/2

HSE is the exclusive North American distributor for products manufactured by TEL, Temperature Electronics Ltd. TEL makes air flow monitors for fume hoods and bio-safety cabinets, VAV fume hood control products (including room pressure controls and fresh air bleed controls) and room pressure monitors. Contact HSE at 847-680-9930.

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