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LOW LEVEL ALARM
84.65.48 STAND ALONE 84.65.49 ATLAS ADD-ON
Overview
The DEMA Low Level Alarm is an accessory to add to your existing installation. It can be installed as a stand alone
unit or an add-on item to the DEMA Atlas Laundry System. It has inputs for up to 8 products and can use either the
DEMA Low Level Capacitive Sensor or any other sensor with a 2-wire connection (such as a float switch). It also
has an audible alarm with a mute button on the front of the unit.
Warnings
Installation of DEMA products must meet all applicable electrical codes and regulations established
by national, city, county, parish, provincial or other agencies. It is possible that electrical codes and
regulations require that a certified electrical contractor or engineer perform the electrical installation.
For questions, contact a certified electrician.
ALL ELECTRICAL POWER MUST BE TURNED OFF TO THE DISPENSER AND TO
THE APPLIED MACHINE.
All installations must conform to local plumbing codes and use approved backflow prevention
devices. A pressure indicating tee is to be installed with existing faucets according to local
plumbing codes in the state of Wisconsin and any other state that requires the use of a pressure
indicating tee.
ALWAYS WEAR PROTECTIVE CLOTHING AND EYEWEAR WHEN WORKING WITH
CHEMICAL PRODUCTS.
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Specifications
Packing List
LOW LEVEL CONTROL 81.340.1 81.340.2
SWITCHING POWER SUPPLY 1 - POWER CORD TO ATLAS -- 1
INSTALL KIT 84.17.10 84.17.11
84.176.3 STRAIN RELIEF 2 2
81.144.1 SIDE MODULE JOINT -- 2
I1027 INST. SHEET 1 1
81.32.54 GROUND WIRE 1 --
LOW LEVEL SENSOR KITS (NOT INCLUDED W/ UNIT)
KIT NO. SENSOR TYPE
84.65.44 CAPACITIVE SENSOR W/ BARBS FOR 3/8” ID TUBING
84.65.45 CAPACITIVE SENSOR W/ 3/8” QUICK CONNECT UNION
FITTINGS FOR 3/8” OD TUBING
84.65.46 CAPACITIVE SENSOR W/ ¼” X 3/8” QUICK CONNECT
UNION FITTINGS FOR 1/4” OD TUBING
84.65.47 CAPACITIVE SENSOR W/ 3/8” QUICK CONNECT STEMS
(3/8” QUICK CONNECT FITTINGS NEEDED TO CONNECT
HOSE NOT INCLUDED)
82.29.3 15’ EXTENSION CABLE
Operational Requirements
VOLTAGE
CURRENT
Overall Size & Weight
PARTS
84.65.48
84.65.48 84.65.49
120/240 VAC 50-60 HZ 12 VDC
UP TO 1 AMP
STAND
ALONE
ATLAS
84.65.49
ADD-ON
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Parts List
1
4
3
6
5
2
NO. PART NO. DESCRIPTION
1 L1187 MEMBRANE LABEL WITH MUTE BUTTON
2 L1239 CHEMICAL LABEL
3 84.65.50 CONTROL BOARD KIT
4 81.324.1 WALL MOUNTING BRACKET
5 84.176.3 STRAIN RELIEF FOR SENSORS
84.65.44 SENSOR W/ BARBS FOR 3/8” ID TUBING
6
(Not
Included)
7
8 82.29.3
9 81.32.54
84.65.45
84.65.46
84.65.47 SENSOR W/ 3/8” STEM (NO FITTING)
25.69.8
81.78.1
SENSOR W/ 3/8” QUICK CONNECT UNION
FITTINGS (SHOWN)
SENSOR W/ ¼” QUICK CONNECT UNION
FITTINGS
SWITCHING POWER SUPPLY FOR STAND
ALONE UNIT (NOT SHOWN)
POWER CABLE FOR CONNECTION TO IQ-85
(NOT SHOWN)
15’ EXTENSION CABLE FOR SENSOR LENGTH
(NOT SHOWN)
GROUND WIRE FOR STAND ALONE UNIT (NOT
SHOWN)
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Installation
Mounting
84.65.48-Low Level Stand Alone Unit
A wall mounting bracket is included on the unit. Find a place to mount the
unit so that the wires for the sensors will reach the necessary chemical lines
going to the dispenser. Use the proper hardware to mount the dispenser to
the wall.
84.65.49-Low Level Atlas Add-on Unit
Mount this unit to the end of an Atlas using dovetail joints (81.144.1) included in the
assembly (see picture).
Electrical Installation
84.65.48-Low Level Stand Alone Unit
The stand alone unit is equipped with a standard switching power supply
that can be plugged into 120 or 240 VAC 50 or 60 Hz.
Included in the installation kit of the unit is a ground wire. The ground
wire helps with electrical noise in industrial environments. If an
installation has problems with the sensors working properly, then install
this ground wire on the first screw terminal input on the low level board
and ground the wire to any common grounding point in the installation.
84.65.49-Low Level Atlas Add-on
The Atlas add-on unit is equipped with a power cable that should be wired
into the Atlas Laundry System on the IQ-85 Control Board. The hardware
revision will determine how the Low Level will be added to the unit. This
can be determined by looking for the revision letter near where the main
power comes into the unit. It should be below the terminal block row for the
pumps.
For Control Boards Revision B or earlier, there is a screw terminal block
in the upper left corner of the board with 4 places. The wires should be
installed as shown in the picture in FIGURE 1. The wire with a white stripe
(Hot) should be wired into the first screw terminal. The plain black wire
(Return) should be wired into the last screw terminal in the 4 screw terminal
block.
For Control Boards Revision C or newer), there is a screw terminal block
with 6 places. The last two places as shown in FIGURE 2 are reserved for
12 VDC out of the control board. This is what is needed to power the unit.
The wire with the white stripe (Hot) should be wired into the 5
terminal. The plain black wire (Return) should be wired into the last screw
terminal.
th
screw
White Stripe
Figure 1: Rev. B or older IQ-85
White Stripe
Figure 2: Rev C or newer IQ-85
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Alarm Configuration
Mute Jumper: The mute jumper is placed on both pins in order to permanently mute
the audible and auxiliary alarms (if connected). If the audible alarm is desired, the mute
jumper must be moved to only cover one of the two pins or removed entirely.
Auxiliary Port: An auxiliary port is available for driving external alarms that are rated
at 12 VDC. The maximum current capacity is .200 Amps.
Sensor Installation
The sensors for the unit should be installed by removing the four screws on the front of the unit. This will give
access to the control board for the unit. Run the sensor wire through one of the two large holes in the bottom of
the enclosure and place the wire in the proper space on the board.
On the front panel of the enclosure, the label is provided to write the chemical
name of each sensor input into the control board. Apply power to the control
before connecting the sensors to the tubing. This will help determine if the
sensors are installed properly. Without any chemical in the sensors, each alarm
should activate for each sensor installed to the board. Remove power from the unit.
Use the strain reliefs (84.176.3) in the kit of the unit to secure the sensor wires in
the bottom of the enclosure. Leave enough cord in the enclosure so that the front
panel can be removed. Replace the front panel on the unit and insert the screws in
the proper holes. The screw terminal can be used with normally open float valves.
For more information on installing the sensors, see instruction sheet I1028.
Labeling
The front label of the unit has space provided to mark the chemical which
each sensor is associated with. The lines and LEDs correspond to the inputs
on the control board as shown in the picture.
The sensor, which is in the #1 input, corresponds to the first blank line on the
front of the unit. This is where the chemical name or information should be
put to help to quickly find which chemical is empty.
Operation
Normal Operation - Once the front cover is installed and the unit is
powered, the control will begin sensing the chemical in the tube. The
“POWER ON” LED (Green) will be lit as long as the unit has power.
As long as there is chemical in the tube, the LED lights will not be lit.
Sensor Alarm (Out of Product) - When a chemical is not present,
the LED will light red and the audible alarm will be active. At this
time the “MUTE” button may be pushed to silence the alarm. The
mute will last for 5 minutes.
Features - The Low Level Alarm has an automatic 3 second buffer built into the control which will eliminate
unnecessary alarms due to air bubbles in the supply tubing.
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Troubleshooting
PROBLEM CAUSE SOLUTION
It doesn’t turn on.
The sensor is alarming and there is
chemical in the line
The sensor is not alarming and there
is no chemical in the line
1. Not Plugged in/Wired incorrectly
2. Power cord not plugged into
board.
1. The sensor may not have had time
to switch over to an “off” state
2. The sensor may be faulty.
1. The sensor may not have had time
to switch over to an “off” state
2. The sensor may be faulty.
1. Plug the unit into the wall or
Atlas Laundry System
2. Remove screws from the front of
the unit. Check to see if the
power cord is properly installed.
1. Wait for the 3 second delay. If
this does not work. Cycle power
to the unit to see if this clears the
condition.
2. Replace the sensor.
1. Wait for the 3 second delay. If
this does not work. Cycle power
to the unit to see if this clears the
condition.
2. Replace the sensor
Warranty
Merchandise Returns
No Merchandise will be returned for credit without DEMA’S written permission. Returned merchandise
authorization number is required in advance of return.
Product Warranty
DEMA products are warranted against defective material and workmanship under normal use and service
for one year from the date of manufacture. This limited warranty does not apply to any products that have
a normal life shorter than one year or failure and damage cause d by chemicals, corrosion, physical abuse,
or misapplication. Rubber and synthetic rubber parts such as “O”-rings, diaphragms, PVC tubing, and
gaskets are considered expendable and are not covered under warranty. This warranty is extended only to
the original buyer of DEMA products. If products are altered or repa ired without prior approval of DEMA,
this warranty is void.
Defective units or parts should be returned to the factory with transportation prepaid. If inspection shows
them to be defective, they will be repaired or replaced without charge, F.O.B. factory. DEMA assumes no
liability for damages. Return merchandise authorization number must be granted in advance of returned
units for repair or replacement (See “Merchandise Returns” above).
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