OMNTEC LU3-LF-HHLO Three Channel Alarm Panel Installation Guide

June 13, 2024
OMNTEC

OMNTEC LU3-LF-HHLO Three Channel Alarm Panel

OMNTEC -LU3-LF-HHLO -Three -Channel -Alarm -Panel -product
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Product Information

Product Name: LU3-LF-HHLO Three Channel Alarm Panel
Manufacturer: OMNTEC Mfg., Inc.
Address: 2420 Pond Road, Ronkonkoma, NY 11779
Contact: Phone: 631-981-2001, Email: omntec@omntec.com
Website: www.omntec.com

Specifications:

  • Power Input: 85-125 VAC, 47-440 Hz, 16 Watts maximum
  • Power to Sensors: 13.80 VDC @ 13 ma
  • Relay Output: SPST normally open dry contacts, 0.5 AMPS, 120 AC/DC switches when an alarm condition occurs
  • Weight: 6 LBS.
  • Dimensions: (W) 9 x (H) 10.5
  • Sensor Cable: Shielded 22 AWG UL-E118830 CM, Maximum length 2000 feet
  • Enclosure: NEMA 4X

Specifications

| BUNA N| Stainless Steel
---|---|---
Operating Temperature| Water: to 180 F Oil: -40 F to +230 F| 40 F to +300 F
Stem & Mounting Material| Brass| 316 Stainless Steel
Max Length (Lo)| 120″ (305 cm)|
Float Stops*| Beryllium Copper| 316 Stainless Steel
Compatible Controllers| Consult factory
Approvals| U.L. Recognized, CSA Listed

Specifications subject to change without notice, verify with manufacturer.

Optional Accessories:

  • RA-Series Audio/visual remote annunciator
  • RLY-RA Series SPDT 5-amp 120V relay box
  • Labels provided with controller

Product Usage Instructions

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THREE CHANNEL ALARM PANEL

OMNTEC -LU3-LF-HHLO -Three -Channel -Alarm -Panel -fig
\(2\)

LU3-LF-HHLO SPECIFICATIONS

POWER INPUT
85-125 VAC, 47-440 Hz
16 Watts maximum

POWER TO SENSORS
13.80 VDC @ 13 ma

RELAY OUTPUT
SPST normally open dry contacts 0.5 AMPS, 120 AC/DC switches when an alarm condition occurs

WEIGHT  DIMENSIONS
6 LBS. (W) 9” x (H) 10.5”

SENSOR CABLE
Shielded 22 AWG UL-E118830 CM
Maximum length 2000 feet
ENCLOSURE   OPERATING TEMPERATURE
NEMA 4X            -40° to 140° F

AUDIO/VISUAL CONSOLE
AUDIBLE ALARM – 95 dB pulsing horn with 30 second timeout
RED LIGHT – Indicates Hi Hi Level alarm and/or Hi Level alarm for LF- Series float sensor
AMBER LIGHT – Indicates Low Level alarm for LF-Series float sensor
TEST BUTTON – When pressed will test system electronics
GREEN LIGHT – Indicates the power is on
HORN OFF BUTTON – Silences the audible alarm when pressed

SENSORS
(1) LF-3-SS Three-point stainless steel float sensor; normally closed

OPTIONAL ACCESSORIES
RA-Series Audio/visual remote annunciator
RLY-RA Series SPDT 5-amp 120V relay box

LABELS
Provided with controller

DIMENSIONS FOR MOUNTING AND KNOCKOUTS

LU3-LF-HHLO CONTROLLER CONNECTION DIAGRAM

COLOR CODE
CABLES FROM SENSORS TO REMOVABLE SENSOR INPUT CONNECTORS

1 UNUSED SENSOR #1 LF-3-SS HI HI LEVEL
2 ORANGE
3 UNUSED SENSOR #1 LF-3-SS HI LEVEL
4 GREEN
5 UNUSED SENSOR #1 LF-3-SS LOW LEVEL
6 RED
7 BLACK, WHITE, BLUE FROM SENSOR #1
8 SHIELD DRAIN

WIRES TO OPTION BOARD
WIRES FROM RA-SERIES REMOTE

1 GREEN – HORN
2 RED + HORN
3 BLACK GROUND
4 WHITE SENSOR #1 HI HI LEVEL
5 ORANGE SENSOR #1 HI LEVEL
6 BLUE SENSOR #1 LOW LEVEL

WIRES FROM RELAY OUTPUTS

7 COMMON SENSOR #1 LOW LEVEL
8 NORMALLY OPEN
9 COMMON SENSOR #1 HI LEVEL
10 NORMALLY OPEN
11 COMMON SENSOR #1 HI HI LEVEL
12 NORMALLY OPEN

POWER INPUT
120VAC
WIRES TO POWER SUPPLY

F.G. FIELD GROUND
L LINE
N NEUTRAL

NOTE: To maintain proper shielding, BLACK sensor wires and SHIELD DRAINS should not be connected together at sensors.

LF-3-SS SENSOR DIMENSION APPROVAL SHEET

IMPORTANT:

  • Dimensions should be calculated from the top of the tank or riser down to the required alarm level(s) in inches.
  • Be sure to take into account any riser pipes or manway risers.

OMNTEC -LU3-LF-HHLO -Three -Channel -Alarm -Panel -fig
\(7\)

**WIRING COLOR CODE***

COMMON| BLACK
LEVEL 1| RED
LEVEL 2| YELLOW
LEVEL 3| BLUE
LEVEL 4| BROWN
LEVEL 5| ORANGE
LEVEL 6| GRAY

  • Colors subject to change. Consult factory or controller connection diagram

LF-SERIES SENSOR

LIQUID LEVEL FLOAT SENSORS
  • Stainless Steel or Brass Mountings
  • 1 to 6 Actuation Levels
  • Lengths to over 11 feet
  • U.L. Recognized, CSA Listed

LF series float sensors have multiple options including material of construction, mountings and float sizes. This allows for the LF sensor to be extremely versatile in a wide range of applications such as water, oils, chemicals and corrosive liquid. LF-* switches are U.L. Approved for Class I, Division 2, Groups A, B, C, D hazardous locations. FM Approved explosion proof junction box must be installed for Class I, Division I, Group D hazardous locations.OMNTEC -LU3-LF-HHLO -Three -Channel -Alarm -Panel -fig
\(9\)

Switch actuation levels are determined following the guidelines below:
All units 72″ or less overall unit length with Stainless Steel or Buna N floats.
A = 1-1/2″ (38.1mm) minimum distance to highest level (2″ (50.8mm), Type 5 only)
B = 2″ (50.8mm) minimum distance from end of unit to lowest level
C = 3″ (76.2mm) minimum distance between levels
D = 1/4″ (6.3mm) minimum distance between actuation levels (Note: One float for two levels can be used only when low level is N.C. dry and high level is N.O. dry)

  • Actuation level distances and L0 (overall unit length) are measured from inner surfaces of mounting plug or flange
    Length Overall L0 = L1 + Dimension B. See mounting Types for Maximum Length valuesOMNTEC -LU3-LF-HHLO -Three -Channel -Alarm -Panel -fig
\(10\) Notes:**

    1.  A, B and C dimensions based on a liquid specific gravity of 1.0
    2. One float for two levels can be used only when 20VA switch is used
    3. Actuation levels are calibrated on descending fluid level, with water as the calibrating fluid, unless otherwise specified
    4. Tolerance on actuation levels is +/- 1/8″ (3.2mm)

Wiring Color Code

Wiring Level 1 Level 2 Level 3 Level 4 Level 5
LF-1 black/red ——- ——- ——- ——-
LF-2 black/red green/white ——- ——- ——-
LF-3 white/red blue/green black /orange ——- ——-
LF-4 black/red green/white blue/orange yellow/brown ——-
LF-5 black/red green/white blue/orange yellow/brown purple/grey

Optional Alternative Mounting for ½” NPT

| Type 1
½” (12.7mm) NPT| Type 2
1-¼” (31.8mm) NPT| Type 3
2” (50.8mm) NPT| Type 4
3” (76.2mm), 150# Dia. Flange
---|---|---|---|---
| | |
Stem and Mounting Material| Brass or 316 Stainless Steel| Flange: Carbon Steel or 316 S.S.
Stem: 316 S.S.
Max Length| 36” (91.4 cm)| 60” (152.4 cm)| 140” (355.6 cm)
Mounting Position| Vertical 30 Inclination
Float Stops*| Brass Units: Beryllium Copper Grip Rings, Stainless Steel Units: S.S. ARMCO PH-15-7MO Grip Rings

  • Units greater than 72″ (1828mm) overall length are supplied with collars with setscrews (made of same material as stem and mounting) in place of float-stop rings. Collars are optional on units less than 72″ (1828mm) overall length. Units requiring 316 SS float stops must be special ordered with 316 SS collars instead of grip rings. In some instances, the use of concentration of chlorine and other corrosive compounds in the media require the use of collar type float stops.
    Consult factory for details.

RA-SERIES REMOTE HIGH-LEVEL ALARM

OMNTEC -LU3-LF-HHLO -Three -Channel -Alarm -Panel -fig
\(16\) OMNTEC -LU3-LF-HHLO -Three -Channel
-Alarm -Panel -fig \(17\)

INTERNAL WIRING COLOR CODE

OMNTEC -LU3-LF-HHLO -Three -Channel -Alarm -Panel -fig
\(18\)*Warning Label Placed Here
WARNING: LOW VOLTAGE INPUTS ONLY

OMNTEC -LU3-LF-HHLO -Three -Channel -Alarm -Panel -fig
\(19\)Note: It is recommended that knockouts be placed in the bottom of enclosure.

SPECIFICATIONS
Audible Alarm 95 dB pulsing horn
Red Light Liquid-high-level alarm
Response Time Immediate
Power Input 12VDC @200mA maximum from controller
Wire 22 AWG minimum
Weight 1 lb.

LOG SHEET

DATE NAME SYSTEM STATUS SIGNATURE

WARRANTY

The seller OMNTEC Mfg., Inc. warrants to buyer defects when properly installed, and maintained by user. The seller’s sole obligation is to repair or replace parts found to be defective, or non-conforming for one year and only after evaluation by factory. The liability of the seller shall not exceed the price paid for the components found to be defective. The above warranty is exclusive of all other warrantees whether implied or expressed. Seller assumes no obligation for special or, indirect damages incurred by user.
All standard tank gauging systems are free of defects when properly installed and maintained by user. Warranty on tank gauging systems will only be effective after proper documentation has been submitted by the buyer to OMNTEC Mfg., Inc. The seller’s sole obligation is to repair or replace parts found to be defective, or non-conforming for one year and only after evaluation by factory. Technical support must be contacted for a Return Material Authorization (RMA #) prior to sending any potentially defective parts. The liability of the seller shall not exceed the price paid for the components found to be defective. The above warranty is exclusive of all other warrantees whether implied or expressed. Seller assumes no obligation for special or indirect damages incurred by user.
All standard replacement parts, “add-ons”, or spare parts are free of defects when properly installed and maintained by user. The seller’s sole obligation is to repair or replace parts found to be defective or non-conforming for 90 days and only after evaluation by factory. The liability of the seller shall not exceed the price paid for the components found to be defective. The above warranty is exclusive of all other warrantees whether implied or expressed. Seller assumes no obligation for special or indirect damages incurred by user.
Equipment not covered by this warranty includes but is not limited to: custom equipment and control systems.
OMNTEC Mfg., Inc., 2420 Pond Road, Ronkonkoma, NY 11779
Phone 631-981-2001
Fax 631-981-2007
www.OMNTEC.com
File Name: LU3-LF-HHLO rev2327.docx

References

Read User Manual Online (PDF format)

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