- Holes Drilled for Light / Horn and Reset Button in Enclosure
- Single Lights Available in Red, Green, Yellow, Blue, or White
- Units with One of Five User Selectable Lights Available
- Units with Three Layered Lights Available
- ProVu Meter Can be Equipped with up to 8 Relays to Drive Variety of Light & Horn Configurations
- Light / Horn Programmable for Variety of Reset Functions, Including:
- Silence Horn at Any Time
- Light Stays on Until Alarm Clears
- Light Can Be Wired to Flash (Not Available on MOD-LH5CB1) or Stay Steady On
- IP 65 Rated
- 85 dB Horn
- Operates from -5 to 40°C (23 to 104°F)
ProVu Meter Shown in a PDA2301 Enclosure with MOD-LHRB1 Red Light / Horn and Reset Button. Meter & Enclosure Sold Separately. Assembly Required.
Precision Digital offers a wide variety of NEMA 4 and NEMA 4X enclosures that can be equipped with MOD-LH Light / Horn and Reset Button. The MOD-LH Series is available in three different light configurations. The first option is a factory ordered Light / Horn with a color of either red, green, yellow, blue, or white. The second option is a Light / Horn the user determines the light color (red, green, yellow, blue or white) by connecting the appropriate wire. The third option is a Light / Horn with red, yellow, and green layers the user can turn on independently.
The MOD-LH can be powered from the ProVu’s 200 mA transmitter power supply with enough power left over to drive most transmitters.
The light(s) and horn can be controlled independently of each other by up to eight separate relays on the ProVu meter. These relays can be programmed for automatic or manual reset action to satisfy a wide variety of audible and visual alarm applications. The light can be programmed to flash (not available on MOD-LH5CB1) or stay steady-on.
When MOD-LH is ordered, the accompanying enclosure on the order comes with the holes pre-drilled for the Light / Horn and the Reset Button and the user performs the mounting and wiring. Meter and enclosure are sold separately. The Light / Horn and the Reset Button can also be ordered as separate items and the user performs all hole-drilling, mounting and wiring as desired.
Note: The Light / Horn accessory is powered from the 200 mA transmitter power supply, so when this is installed, the meter’s transmitter power is downgraded from 200 mA. See Transmitter Power Supply specification for details.
There are a wide variety of ways these Light / Horn devices can be controlled by the ProVu’s two, four or eight relays to satisfy visual and audible alarm applications. Please feel free to contact tech support to discuss your particular application. The following examples illustrate some typical applications.
The MOD-LH models are the simplest devices in the Series and are made up of a single-color light and horn. A typical way to use the MOD-LH is to program the ProVu so the horn can be silenced at any time via the Reset Button or F3 front panel button on the ProVu, and light to reset automatically when the alarm clears:
|Relay||Connected to||Default Reset|
|1||Flashing Light(1)||Auto reset|
|2||Horn||Silence with Reset Button|
|3||User Device||As user desires|
|4||User Device||As user desires|
|1 Light can be wired to flash or stay steady on.|
The MOD-LH5CB1 shows one color at a time and the light color (red, green, yellow, blue or white) is determined by which wires are connected to power through the ProVu’s relays. A typical application for the MOD-LH5CB1 might involve lighting up the red light to indicate high and low alarms and the green light to indicate everything is OK using the ProVu’s four internal relays:
|1||Low alarm||< 199||Red light||Auto|
|3||Low alarm||< 199||Horn||Latch|
|2||All OK||200 to 500||Green light||Auto|
|2||High alarm||> 500||Red light||Auto|
|4||High alarm||> 500||Horn||Latch|
The MOD-LH3LCB1-RYG can light up red, yellow or green bands as determined by which wires are connected to power through the ProVu’s relays. A typical application for the MOD-LH3LCB1-RYG (and the default factory setting) might involve lighting up the green light to indicate everything is OK, the yellow light to indicate a High warning, and the red light to indicate a High alarm. The Horn will also sound at both the Warning and High alarms and can be manually reset at any time with the front panel reset button:
|1||All OK||< 199||Green light||Auto|
|2||Warning||200 to 500||Yellow light||Auto|
|3||Warning||200 to 500||Horn||Latch|
|2||High alarm||> 500||Red light||Auto|
|4||High alarm||> 500||Horn||Latch|
Control Stations for Remote Operation of Light/Horn
The PDA2360 series of plastic control stations provide a convenient way to remotely control the Light / Horn. The control stations can mimic the button on the front of the Helios for remote control of the Light / Horn. The PDA2361-R is used to reset an alarm, the PDA2361-A is used to acknowledge an alarm, and the PDA2361-Q is used to silence an alarm.
- Complete Pre-Assembled Stations
- Normally Open (NO) Spring Return Plastic Bezel Pushbuttons
- IP65 / NEMA 4, 4X and 13 Rated
- Control Station for Remote Operation of Light / Horn Reset Button
- Wall Mountable
Dimensions Units: Inches (mm)
Connections shown for a red light model. For other MOD-LH models, the red wire is the color of the light. Connect the red and black wires for a Steady On light and red and gray wires for Flashing light.
Connect the LED color to the plus supply and the black wire to the minus supply to turn the LED on. Be aware of limitations for applications requiring different color lights for different alarm conditions.
Connect the LED color to the plus supply for a Steady On light and LED color and gray wires to the plus supply for Flashing light. The black wire should be connected to the minus supply.
Wiring Connections for MOD-LH Models
Using ProVu's Internal Power Supply
Using External Power Supply (PDA1024-01)
MOD-LH Hole Locations
When MOD-LH is ordered with an enclosure, the enclosure comes pre-drilled with holes for Light / Horn and Reset Button.
Light / Horn
The Light / Horn hole is on the top, back left corner of the enclosure.
The Reset Button is centered on the cover of the enclosure below the meter about an inch off the bottom of the cover except on the PDA3400 series where it is mounted on the side of the enclosure.
The reset button can be used to silence the horn or turn off the light (9 labels provided).
9 Labels Provided
Watch the Light / Horn Video
Recommended for these ProVu Models: PD6000, PD6001, PD6100, PD6200, PD6300.
MOD-LH5CB1: User selectable: red, green, yellow, blue, or white
MOD-LH3LCB1-RYG: 1 layer each of red, yellow, green (consult factory for other colors available).
Light Action: Can be wired to flash (not available on MOD-LH5CB1) or stay steady on
Light / Horn & Reset Button Installation: When MOD-LH is ordered with an enclosure, the user performs installation and wiring of Light / Horn and Reset Button in pre-drilled holes.
Horn: 85 dB
Rating: IP 65
Light / Horn Independence: Light and horn can be controlled via separate relays
Power Requirement: No additional power required when wired to a ProVu meter. When mounted remote: 24 VDC
Transmitter Power Supply: The ProVu's internal transmitter power supply is capable of supplying 200 mA to power the transmitter and other devices such as the Light / Horn. The following table illustrates how much of this power is required to drive various Light / Horns. If more power is needed, then consider the PDA1024-01.
MOD-LH and MOD-LH5CB1 Models:
Example: 17 mA (Red Light) + 20 mA (Horn) = 37 mA total current needed from the 200 mA supply. Available current = 163 mA
Power Requirement for the horn and each color that is turned on:
Example: 33 mA (Yellow Light) + 38 mA (Horn) = 71 mA total current needed from the 200 mA supply. Available current = 139 mA
Reset / Silence Button: NEMA 4X; may be wired to F4 terminal on ProVu. F3 front panel button can also be used to reset relays.
Reset Button Labels: The Light / Horn accessory comes with 9 pre-printed message labels the user can affix under the red button: RESET, BATCH, ACK, TARE, SILENCE, STOP, START, PAUSE, START/STOP
Light / Horn Mounting connection: M22
Hole Sizes: Light / Horn: 0.875" (22 mm); Reset Button: 0.630" (16 mm)
Cable Length: 3.28 feet (1 meter)
Operating Temperature Range: -40 to 40°C (-40 to 104°F)