Summary of Contents for HSE AFA 500
- Page 1 AFA 500 FUME HOOD ALARM Operating and Instruction Manual Model AFA 500 • Built-in or Remote sensor • 2 Relay inputs • 1 Relay output • Com port Used for alarm indication and monitoring on Fume Hoods 5/MK3/FH/USPSU 280304...
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Page 2: Table Of Contents
Table of contents Section Description Page Operator display panel Connection details General description – overview 5 to 6 Alarm Configuration / Calibration Start-up Events – actions Quick Start Installation / Calibration 9 to 10 Dimensions Aiflow Alarm Installation 12 to 14 Wiring diagram Spare parts Limitation of Warranty and Liability... -
Page 3: Operator Display Panel
1.0 Operator Display Panel Built-in AIRFLOW SENSOR LED indicators Function buttons Calibration. ENTER – also used as Mute button for audible alarm... -
Page 4: Connection Details
2.0 Connection details REFER TO INSTALLATION AFA 500 INSTRUCTIONS BEFORE CONNECTING RS 232 Com Port OUTPUT RE AY OPTIONAL REMOTE MADE IN ENGLAND AIRFLO W SENSOR www.tel-uk.com SOCKET 15V DC INPUT INPUT POWER SUPPLY Night set-back Blk Blu Relay input... - Page 5 All systems comprise of the following components :- 1 – AFA 500 Alarm unit, 1 – AC power supply If the Sash Alarm System option is ordered there will also be a sash micro switch or proximity switch. Operator Features --- the alarm has the following operator features :- Normal Airflow - Green LED (Not flashing) will be displayed if the airflow is greater than the Low air alarm point.
- Page 6 External Connections -- the alarm unit has the following connection points :- Input 1 --- volt free relay input – ( close contact to activate the input ) This input is configured as :- NIGHT SETBACK Output R1 --- volt free relay output - ( contact closes on activation ) This input is configured as :- LOW AIR ALARM Sash High Input: a.
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Page 7: Alarm Configuration / Calibration
4.0 Alarm Configuration / Calibration The alarm is supplied with a factory configuration. The only part of the configuration that can be changed is the setting for the Sash High repeat timer time delay -- if required this can be changed by connection to a Laptop or PC via the RS232 com port. -
Page 8: Events - Actions
6.0 Events / actions Normal airflow • Airflow above alarm level ( eg > 80 fpm ) • Green LED on Low airflow • Airflow below alarm level for longer than the low air delay time ( 5 secs) • Red LED on ( Not flashing ) •... -
Page 9: Quick Start Installation / Calibration
7.0 Quick Start Installation Follow the instructions below for installing and commissioning the unit. :- 1. Fit the alarm to the Fume Hood using the cut-out details provided with the unit --- see page 11 to 13 2. Plug in the power adapter to a Mains AC power socket and connect the flying lead to the alarm unit --- see typical connection diagram on page 15 4. - Page 10 d. When complete re-set the airflow to the normal value and the unit will go to the Normal running condition with the Green LED on. The unit will now function and go into the ALARM condition if the Fume Hood face velocity falls below the alarm value. 7.1 Calibration Notes :- Using the Alarm Point Capture method it is necessary to adjust the face velocity on the fume hood using a mechanical damper ( or fan...
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Page 11: Dimensions
8.0 Dimensions Alarm Panel Dimensions 1.59 ″ 1.59 ″ (40.5mm) (40.5mm) 1.14″ (29mm) 2.91 ″ 4.37 ″ 5.2 ″ (74mm) (111mm) (132mm) Input Input 1.14″ (29mm) 3.19″ ″ 1.89 ″ ″ 0.75 0.76 (81mm) (48mm) (19mm) (19.26mm ″ 0.38 Front (9.75mm) Side Rear... -
Page 12: Aiflow Alarm Installation
9.0 Airflow Alarm Installation Concept or Pioneer Fume Hood Airflow Alarm SafeAire Fume Hood Airflow Alarm... - Page 13 Fume Hood 1.24” It is very important to position the AFA 500 in the correct position to give long term stable reading of the face velocity. Please read the INSTALLATION NOTES below and if in doubt contact us for further advice.
- Page 14 INSTALLATION NOTES :- 1. The AFA 500 must be positioned where it can " see " the room pressure of the laboratory.The back connection spigot of the sensor is designed to accept a 25mm ( 1” ) OD tube which should be connected to the inner chamber of the fume hood.
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Page 15: Typical Wiring Diagram
10.0 Typical Wiring Diagram Standard Alarm with built-in Airflow Sensor REFER TO INSTALLATION AFA 500 INSTRUCTIONS BEFORE CONNECTING RS 232 Port RELAY MADE IN ENGLAND www.tel-uk.com 15V DC INPUT INPUT POWER Night set-back Relay input Blk Blu 120V / 15V DC Plug –... -
Page 16: Spare Parts
11.0 Spare Parts List Item Description Part Number AFA500 AFA500/Mk3/FH/USPSU 62198 Inner wall Sensor Tube Vent kit EVK / Gland adaptor Flexible tube Adaptorflex 12ins Flexible tube 12″ Power supply USA power supply USAPSU Com Port Cable RS232 serial cable RS232 / 2M Fixing screws Black fixing screws... -
Page 17: Limitation Of Warranty And Liability
12.0 LIMITATION OF WARRANTY AND LIABILITY Seller warrants that this product, under normal use and service as described in the operator’s manual shall be free from defects in workmanship and material for a period of 24 months, or the length of time specified in the operator’s manual, from the date of shipment to the customer.
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