User Manual
This alarm system monitors liquid levels in lift pump chambers, sump pump basins, holding tanks, sewage, agricultural, and other
water applications.
The ALM-2 and ALM-2-1 alarm systems can serve as a high or low level alarm depending on the fl oat switch model used. The alarm
horn sounds when a potentially threatening liquid level condition occurs. The horn can be turned off, but the alarm light remains on
until the condition is remedied. Once the condition is cleared the alarm will automatically reset. A green "power on" light indicates
120 VAC primary power to the alarm. Low battery chirp feature indicates when battery should be replaced.
ALM-2 and ALM-2-1 Alarm System Installation Instructions
FEATURES
120 VAC Model Voltage - (circuits not supervised) Primary: 120 VAC, 60 Hz, 2.4 watts maximum
(alarm condition) Operating Voltage: 9 VDC Double insulation.
NEMA 1 enclosure rated for indoor use.
Automatic alarm reset.
Red "alarm" light and green "power on" light, alarm "test" switch, and horn "silence" switch.
6 foot (1.8 meter) power cord.
Alarm horn sounds at 87 decibels at 10 feet (3 meters).
Can be used with any UL Listed switching mechanism rated to include 1 amp, 9 VDC load.
Maximum line impedance for initiating device: 5 ohms.
If primary power fails, the alarm system continues to work due to battery backup feature.
Battery Backup Power - (circuit not supervised) 9 VDC.
Complete package includes standard SJE SignalMaster
®
control switch with 10 (ALM-2-1) or
20 (ALM-2) feet of cable, mounting clamp, and cord bung.
Switching mechanism operates on low voltage and is isolated from the power line to reduce the
possibility of shock.
Low battery chirp.
External terminal block for easy fl oat switch installation.
Three-year limited warranty.
PREVENTATIVE MAINTENANCE
• Periodically inspect the product. Check that the cable has not become worn or that the housing has not been damaged so as to impair the protection of the
product. Replace the product immediately if any damage is found or suspected.
• Periodically check to see that the fl oat is free to move and operate the switch.
• Use only SJE-Rhombus
®
replacement parts.
Liberty Pumps, Inc. warrants that products of its manufacture
are free from all factory defects in material and workmanship for a
period of 3 years from the date of purchase. The date of purchase
shall be determined by a dated sales receipt noting the model
and serial number. The dated sales receipt must accompany the
returned product if the date of return is more than 3 years from
the date of manufacture noted on the product.
The manufacturer’s obligation under this Warranty shall be
limited to the repair or replacement of any parts found by the
manufacturer to be defective, provided the part or assembly is
returned freight prepaid to the manufacturer or its authorized
service center, and provided that none of the following warranty-
voiding characteristics are evident:
The manufacturer shall not be liable under this Warranty if
the product has not been properly installed; if it has been
disassembled, modifi ed, abused or tampered with; if the electrical
cord has been damaged or improperly spliced; if the pump
discharge has been reduced in size; if the pump has been used
in hot water or water containing sand, lime, cement, gravel, or
LIBERTY PUMPS
®
THREE-YEAR LIMITED WARRANTY
other abrasives; if the product has been used to pump chemicals
or hydrocarbons; if a non-submersible motor has be subject to
excessive moisture; or if the label bearing the serial and code
number has been removed.
Liberty Pumps, Inc. shall not be liable for any loss, damage or
expenses resulting from installation or use of its products, or for
consequential damages, including costs of removal, reinstallation
or transportation.
There is no other express warranty. All implied warranties,
including those of merchantability and fi tness for a particular
purpose, are limited to three years from date of purchase.
The Warranty contains the exclusive remedy of the purchaser,
and, where permitted, liability for consequential or incidental
damages under any and all warranties are excluded.