- Industrial & lab equipment
- Personal safety & protection
- Fire protection
- EDWARDS
- EC-50R-100R
- User Guide
Potter 50RU User guide
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8 Pages
EDWARDS 50RU is accurately designed to detect smoke in challenging environments such as warehouses, factories, and other industrial or commercial facilities. It utilizes a reflective beam technology reliably, guaranteeing precise detection even in demanding conditions with minimal maintenance and false alarms.
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22318.18.05-EN
Reflective
Optical Beam Smoke Detector
User Guide
1. Installation
IMPORTANT NOTE: The infrared beam path MUST be kept clear of obstructions at all times! Failure to comply may result in the system initiating a Fire or Fault signal
Detector installation must comply with local regulations. UL listed products must comply with NFPA72
Ensure clear line of sight between Detector and Reflector – it is recommended at least
0.5m radius of clear space be maintained around the centre of the beam path
Mount securely to solid structural surfaces
Position beam as high as possible, but with a minimum distance of 0.5m from Detector to ceiling. For installations complying with UL268/NFPA72, the maximum distance of
Detector and Reflector from the ceiling must be 10% of the distance between floor and ceiling
Mount Detector and Reflector directly opposite each other
Do NOT position Detector where personnel or objects can enter beam path
Do NOT position two Detectors facing each other
For ranges between 5m and 50m, use a 50m Detector with 1 Reflector.
For ranges between 50m and 100m, use a 100m Detector with 4 Reflectors.
2. User Configuration Settings
Access to the configuration settings is through the back plate of the Detector Head. Factory default configuration settings are marked .
Auto Reset Fire Relay (5 seconds)
Latching Fire Relay
Fire Relay Enable, On Compensation Limit
Fire Relay Disable, On Compensation Limit
50% Threshold
35% Threshold
ON
OFF
OFF
ON
OFF OFF
OFF ON
25% Threshold
12% Threshold (Use for extreme sensitivity
ON OFF
ON ON requirements)
The Detector is set to Latching Mode or Auto Reset Mode using DIP Switch 1. If in Auto
Reset Mode, the Detector will automatically recover from a Fire state when the fire condition has been removed. If in Latching Mode, it will remain in Fire state until either the
Detector is placed in Prism Targeting Mode or Alignment Mode, then back to Operating
Mode, OR power is removed from the Detector for 10 seconds.
Fire Relay Enable/Disable on Compensation Limit is set with DIP Switch 2. This mode selects whether Fire activation is still enabled during an AGC Compensation Fault.
The Sensitivity of the Detector is set using DIP Switches 3 and 4.
Do not use the 12% or 25% Alarm threshold for UL listed 100m Detectors, as this will not conform to UL268
3. Wiring Diagram
For connection of a single conventional Detector to a zone:
Detector
Fire Relay
Trouble Relay
10.2 to 30 Volts DC (RED)
0V (BLACK)
NO (YELLOW)
COM (BLUE)
COM (WHITE)
NC (GREEN)
PSU ZONE WIRING
See note 1
EOL
Note 1 – This component is the Fire Resistor, and its value is specified by the Fire Control
Panel Manufacturer. For US installations it is typically a short circuit.
EOL – End of Line component – supplied by the Fire Control Panel manufacturer
For Analogue Addressable variants:
Fire Panel
Connections
Detector
Loop Output
Unused Address switches
Input to
Next Unit
In Line
For connection of multiple conventional Detectors to a zone:
Detector
Fire Relay
Trouble Relay
10.2 to 30 Volts DC (RED)
0V (BLACK)
NO (YELLOW)
COM (BLUE)
COM (WHITE)
NC (GREEN)
PSU ZONE WIRING
See note 1
See note 2
Detector
Fire Relay
Trouble Relay
10.2 to 30 Volts DC (RED)
0V (BLACK)
NO (YELLOW)
COM (BLUE)
COM (WHITE)
NC (GREEN)
See note 1
EOL
Note 1 – This component is the Fire Resistor, and its value is specified by the Fire Control
Panel Manufacturer. For US installations it is typically a short circuit.
Note2 – Schottky Diode (60Volt, 1 Amp typical; must be UL listed for installations meeting
NFPA72)
EOL – End of Line component – supplied by the Fire Control Panel manufacturer
4. Prism Targeting Mode
Apply power to the Detector. After 5 seconds the RED LED will flash once to indicate that the model is a 50m detector, or twice to indicate a 100m detector.
The Detector operating mode is selected using the Mode Switch, situated on the rear of the unit. It can be accessed by sliding a finger between the body of the unit and the wall.
Do NOT remove the detector from the wall when accessing the Mode Switch
Select Prism Targeting Mode by moving the Mode Switch to the upper position.
Find the prism by adjusting the horizontal and vertical thumbwheels until the AMBER LED is continuously ON. The AMBER LED will be OFF when no signal is being received, then will flash at an incrementing rate to determine the target position. The faster the flash the nearer you are to the target (prism).
At this point it is essential to test that the prism and not another surface is reflecting
the beam. Cover the prism with a non-reflective material and confirm that the AMBER LED turns OFF.
5. Alignment Mode
Select Alignment Mode by moving Mode Switch to the middle position. The Detector will automatically adjust its infrared beam power and receiver sensitivity to give an optimum receiver signal strength. The progress of this is indicated by the LEDs on the front of the detector:
CONTINUOUSLY AMBER : The Detector is not receiving a signal. Go back to prism
targeting mode.
FLASHING RED : The Detector is receiving too much signal and is attempting to reduce the infrared power output to compensate. Wait at this point until the LED is OFF, this may take up to 20 seconds depending on the distance between Detector and Prism, the shorter the distance the longer the time.
FLASHING AMBER : The Detector is receiving a weak signal and is attempting to increase the infrared power output.
OFF : The Detector has optimised the infrared power and receiver gain for the current orientation of the Detector and Prism. This does not mean that the Detector to Prism
alignment is at its optimum, i.e. if the power is too high, a misaligned Detector may be receiving a fringe reflection from another object.
FLICKERING RED/AMBER : This state can occur sometimes. It means that the infrared power is stepping through the optimum setting.
Continue to flow diagram for procedure.
Alignment Process Flow Diagram:
Return to Prism
Targeting Mode
Constant
AMBER
Amber
Reverse the direction of the thumbwheel
Repeat the process for the other thumbwheel
Select alignment mode AMBER
LED will illuminate for
5 seconds
Wait until both LED’s stop flashing (up to 30 seconds)
Slowly adjust a thumbwheel in one direction and observe the
LEDs
No
LED flashing?
Both thumbwheels adjusted?
Yes
For optimum alignment, deflection of the beam in all four planes should cause the Amber LED to flash first
Exit Alignment
Mode and enter
Operating Mode
Red
Amber
Stop turning the thumbwheel and wait for the Red LED to stop flashing
Slowly turn the thumbwheel in the same direction
LED flashing?
Neither
Stop turning the thumbwheel
Red
6. Operating Mode
Select Operating Mode by moving the Mode Switch to its lower position.
On exiting alignment mode the Detector will perform an internal calibration check. Do not
block the beam whilst this internal calibration takes place. The Amber LED will flash once a second, for up to sixty seconds, and then go out. If this fails, which would be due to bad alignment or either electrical/optical noise, the detector will indicate a Fault condition. In this case the alignment procedure must be repeated.
If the internal calibration check completes satisfactory, the Detector will now be in normal operating mode.
7. System Testing
After successful installation and alignment the System will require testing for both alarm and fault conditions.
Fault (Trouble) Test
Using a non-reflective object, quickly cover the entire prism(s). The Detector will indicate a fault within 10 seconds by activating the FAULT LED and operating the Fault Relay.
The fault condition will automatically reset when the obstruction is removed.
Alarm (Smoke) Test
Taking note of the threshold selected during installation, select obscuration mark on filter to correspond with the Detector Alarm threshold (see fig. 3).
Place the filter over the receiver optics (Top of Detector Head
opposite end to the status indication LED’s) at the correct obscuration value determined by the threshold selected. For example, if a threshold of 35% has been selected position the filter just past the 35% obscuration value on the filter (see fig 3.). Take care not to cover the transmitter optics.
Align filter for correct obscuration/threshold setting
Obscuration value
Receiver Optics
RED AMBER
Transmitter Optics
Alignment/Status
Indication LED’s
Fig. 3.
8. Servicing and Maintenance
During Operating Mode, the following states will be indicated:
Normal (no Fault or Fire) – Amber LED will flash every 10 seconds (EN approved model) or not flash at all (UL approved model)
Fire/Alarm – Red LED will be on continuously, and Fire Relay will close
Fault – Amber LED on continuously, and Fault Relay will open
Compensation Fault – Amber LED flashes every 2 seconds
A Compensation Fault will occur when the Detector can no longer compensate for signal loss due to dust/dirt build-up on the lenses and/or Reflector. A Compensation Fault can be cleared by cleaning the Reflector and Detector lenses using a dry lint-free cloth, and then realigning the beam. Compensation Faults can be avoided by periodic cleaning of the Reflector and Detector before compensation limit is reached.
9. Technical Data
Operating Range (50 metre Detector)
5 to 50 metres
Operating Range (100 metre Detector)
Supply Voltage limits
50 to 100 metres
10.2Vdc to 30Vdc
Quiescent Current (no LED’s illuminated) <4mA
Power Down Reset Time
Operating Temperature (EN)
Operating Temperature (UL)
10 seconds
-10
C to 55C
32
F to 100F
Tolerance to Beam Misalignment at 35% Detector 1.0, Prism 5.0
Head Maximum Size
Width 130mm, Height 210mm, Depth 120mm
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Key Features
- Reliable smoke detection in challenging environments
- Reflective beam technology for precise detection
- Minimal maintenance and false alarms
- Range of 5 to 50 meters (16 to 164 feet)
- Sensitivity adjustment for various applications
- Built-in self-test and fault monitoring
- Easy installation and alignment
- IP50-rated enclosure for durability