Features

• Holes Drilled for Light/Horn and Reset Button in Enclosure
• Single Lights in Red, Green, Yellow, Blue, or White Available
• Units with One of Five User Selectable Lights Available
• Three Color Light Stack with Red, Yellow, and Green Lights Available
• Light/Horn Powered from Meter or External Power Supply
• Light and Horn Can be Controlled Independently Using Separate Relays
• 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 or Stay Steady On
• IP65 Rated
• 85 dB Horn
• Operates from -5 to 40°C (23 to 104°F)
• Control Station Accessory For Remote Operation of Light/Horn Button

What's Included

Overview

Transform a Precision Digital PD2 and PD4 series meter into an efficient display, control, and alarm system with the MOD-PD2LH series. It provides a light/horn to boost visibility of alarm conditions, a button that connects to the meter's digital input to control or reset the alarms, and hole drilling on the enclosure for both the light/horn and button. Also included is the light/horn and button installation and wiring to the meter. Meter is sold separately.

Overall, the MOD-PD2LH series is a simple solution for PD2 and PD4 series meters that adds audible and visual ways to indicate critical alarms.

The light/horn and button do not affect the Helios’s NEMA 4X rating, but do void its UL approval.

ProVu Meter Shown in a PDA2301 Enclosure with MOD-LHRB1 Red Light / Horn and Reset Button. Meter & Enclosure Sold Separately. Assembly Required.

Light/Horn

The light/horn is available in three different light configurations and each comes with a built-in 85 dB horn.

The first light option is a single color light in either red, green, yellow, blue, or white. The second light option is a user selectable light with five color options in either red, green, yellow, blue or white. Simply connect the appropriate wire to display the desired light color. The third option is a light stack with red, yellow, and green lights that can turn on independently.

The light can be wired to flash (not available on MOD-LH5CB1) or stay steady on. Both the light and horn can be controlled independently of each other using separate relays on the meter, and may be reset in a variety of ways based on the connected meter's relay reset capabilities.

Button

The button connects to the meter's digital input and it can be used to remotely control the light/horn such as resetting, acknowledging, or silencing an alarm. Nine (9) printed labels are provided to identify the button's action including: RESET, BATCH, ACK, TARE, SILENCE, STOP, START, PAUSE, and START/STOP. Only one button is provided regardless of the number of meters in the enclosure.

(9) Printed Labels Provided

Control Capabilities

The light and horn can be controlled independently of each other using separate relays on the Precision Digital meter they are connected to. These relays can be programmed for automatic or manual reset action to satisfy a wide variety of audible and visual alarm applications.

Power Options

Precision Digital meters with an internal transmitter power supply can provide up to 200 mA to power the transmitter and other devices including the light/horn. See Specifications for details on power consumption.

If a meter connected to the light/horn does not have an internal transmitter power supply or more power is required than the meter provides, then consider the PDA1024-01 24 VDC transmitter power supply.

Hole Drilling Locations

All MOD-LH models provide hole drilling on the user selected enclosure for the light/horn and button. See below for hole locations for both the light/horn and button.

Light/Horn
The Light/Horn hole is on the top, back left corner of the enclosure.

Button
The button is centered on the cover of the enclosure below the meter about an inch off the bottom of the cover except on the PDA1900, PDA2900, PDA3400, and PDA3900 series where it is mounted on the side of the enclosure.

Connections

MOD-LH Modelss

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.

MOD-LH5CB1

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.

MOD-LH3LCB1-RYG

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.

Applications

There are a wide variety of ways these light/horn devices can be controlled by Precision Digital meter's relays to satisfy visual and audible alarm applications. Feel free to contact tech support to discuss your particular application. The following examples illustrate some typical applications.

MOD-LH Models

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 meter so that the horn can be silenced at any time via a button connected to the meter's digital input or via the F3 or Ack front panel button, and the light to reset automatically when the alarm clears:

MOD-LH5CB1

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 meter’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 a Precision Digital meter's four internal relays:

MOD-LH3LCB1-RYG

The MOD-LH3LCB1-RYG can light up red, yellow or green lights as determined by which wires are connected to power through the meter'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 via a button connected to the meter's digital input or via the F3 or Ack front panel button:

Watch the Light/Horn Video

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