Page 1
Order Matrix Codes
Wiring for Multiple “Single Point” Service
LL-_-_-_-_-XX-XX
Point Level Switch Modules
Relay Type
1 SPDT (Select with A and K sensitivity) - Fixed Sensitivity
3 SPDT (Select with Y and Z sensitivity) - Adjustable Sensitivity
Sensitivity / Action
A 800 ohm Direct (Pump down)
K 800 ohm Reverse (Pump up)
Y Adjustable Sensitivity Direct (Pump down)
Z Adjustable Sensitivity Reverse (Pump up)
Supply Voltage
1 110 VAC
Socket Style
1 Octal 8 pin (Relay type 1)
2 Octal 11 pin (Relay type 3)
LB
Point Level Probe Assembly
Body (Fitting) Style
C 1-1/2” Tri-Clamp (1)
B 2” Tri-Clamp
D 2-1/2” Tri-Clamp
E 3” Tri-Clamp
Sensor Wiring
0 Quick Disconnect Receptacle (QDR)
1 QDR w/connector (field wireable)
2 QDR w/25 ft Standard Molded Cordset
3 QDR w/50 ft Standard Molded Cordset
5 QDR w/100 ft Standard Molded Cordset
Number of Probes
1 One (1) Probe
2 Two (2) Probes
3 Three (3) Probes
4 Four (4) Probes
5 One (1) Probe offset
Probe Coating
®
T Teflon
Probe Length (2) (Probes 1-4)
00 None
03 3” Long
06 6” Long
12 12” Long
18 18” Long
24 24” Long
30 30” Long
36 36” Long
42 42” Long
48 48” Long
54 54” Long
60 60” Long
66 66” Long
72 72” Long
3
Notes:
1. 1-1/2” Tri-Clamp available with one (1) or two (2) probes only.
2. All standard probe lengths listed are available at standard lead times (consult
factory). Probes may be specified to the nearest whole inch between 3” and 72” by
simply inserting the length in the part number.
3. Offset probe is available for 1-1/2” and 2” tri-clamp only. Probe offset from fitting
nterline: 1-1/2” = 0.34”, 2” = 0.58”
LL
Matrix Number
Probe 1
Probe 2
Future
Probe 3
Module 1
By following this wiring scheme,
it is possible to have multiple
switch points in a vessel that are
independent of each other.
Probe 4
Module 2
Shared
Connection
Wire to
Housing
Lug Screw
NOTE: If utilizing a Reference
probe, wireTerminal G to reference
probe tocomplete circuitloop.
NOTE -Alternate Wiring: It isalso possible
to connect switch module Terminal G to
Earth Ground, with no connection to the
housing lug screw. The active path will go
from probe, through liquid medium, through
vessel, through earth ground back into
switch modulecompleting circuit.
Path Of Completed Circuit (Example)
Terminal G
Terminal H
Housing Lug
Probe
Liquid Contact
Screw - Through Wire
Stainless
Vessel
Module 3
READ
THIS
FIRST
Anderson Instrument Co., Inc.
156 Auriesville Rd. ~ Fultonville, NY 12072
Phone: 518-922-5315
Fax: 518-922-8997
Reach us on the World Wide Web
www.anderson-negele.com
This product carries a one (1) year warranty against
manufacturers defects. A complete warranty statement
is available by contacting Anderson, or in downloadable
format from the World Wide Web.
Relay Type 1 Dimensions
Relay Type 3 Dimensions
May contain factory supplied
NEMA 4 male socket connection.
Be sure to keep moisture from entering the probe housing
prior to completing field installation and startup. Upon
installation, be sure no moisture path exists into housing.
Properly seal all junction boxes, flexible conduit or
customer supplied cable grips.
Installation and Startup Guide
Model LB Conductivity Based Point
Probe
Model LL Switch Module
Rev. 3.2 Document 1112
LL Switch Module Specifications
Control Design (Relay Type 1 & Type 3)
Solid state components enclosed in clear Lexan plug-in style
housing. Housing carries NO NEMA rating.
Contact Design (Relay Type 1 & Type 3)
SPDT (1 for C): one normally open (N.O.) and one normally
closed (N.C.) non-powered contacts
Contact Ratings (Relay Type 1 & Type 3)
10A @ 240 VAC resistive, 1/3 HP @ 120,240 VAC
Contact Life (Relay Type 1 & Type 3)
Mechanical 5 million operations. Electrical 100,000 operation
at rated minimum load.
Supply Voltage (Relay Type 1 & Type 3)
120 VAC (per model), plus 10%, minus 15%, 50/60Hz
Supply Current (Relay Type 1 & Type 3)
120 VAC, Relay energized 4.4 VA.
Secondary Circuit (Relay Type 1 & Type 3)
12 VAC RMS voltage on probes, 1.5 milliamp current.
Sensitivity (Relay Type 1)
Operate from 0-1,000,000 ohm maximum specific resistance
Sensitivity (Relay Type 3)
Operate from 0-1,000,000 ohm maximum specific resistance.
Field adjustable.
Temperature (Relay Type 1 & Type 3)
-40 to 150 deg F, ambient
Terminals (Relay Type 1 & Type 3)
All connections #6-32 screw type terminals with pressure clamps
Time Delays (Relay Type 1 & Type 3)
Standard, .5 seconds on rising level
Listing (Relay Type 1 & Type 3)
U.L. listed, industrial Motor Control (508)
Page 2
Probe Specifications
Material and Finish
Fitting and Probe: 316L grade stainless steel
Probe diameter (including coating): .44” diameter
Probe coating / insulation 0.03” min. thickness, FEP
Probe/Fitting Seal Food Grade, Elastomeric Compression
Stainless steel and coating: Ra better than 25 micro-inches
Operational
Temperature Range 30 to 200 deg F (-1 to 94 deg C)
Pressure Range: -30” Hg to 100 psig
Compliance Ratings
- Assembly meets 3-A criteria
for Sensors and Sensor Fittings and Connections (#74-01)
- Optional quick disconnect meets NEMA 4X requirements
(In connected and dis-connected positions)
Seals. 3-A and USP, Class IV compliant
Vacuum or vented non-pressurized vessels
Typical Product Sensitivity Values
Baby Foods 1k Molasses 10k
Beer 2.2k Mustard 1k
Bourbon 200k Oil Soluble 10k
Buttermilk 1k Soap Foam 18k
Cake Batter 5k Soups 1k
Catsup 2.2k Starch Solutions 5k
Cream 1k Sugar Solutions 90k
Cream (Foam) 4.7k Vinegar Aqueous 2.2k
Coffee 2.2k Carbonated Water 3k
Corn Syrup 45k Condensated Water 18k
Corn Cream Style 2.2k Chlorinated Water 5k
Jam / Jelly 45k Distilled Water 450k
Juices Fruit / Veg 1k De-ionized Water 2.0m
Mayonnaise 5k Hard / Natural Water 5k
Milk 1k Wine 2.2k
Note: Under normal conditions, select a module sensitivity just higher
than appropriate for the product. For low sensitivity liquids (Milk / Cream),
when foaming is normally present, use 800 ohm module sensitivity to
ignore foam and 4.7K ohm to 5K ohm sensitivity to sense foam.
Each of the modules is supplied from the factory in a Direct or Inverse mode of operation. Referring to the product matrix descriptions, determine the mode of
operation for your module. The following definitions explain the action that will occur with each of the specific modules.
SWITCH MODULE ACTION IS FACTORY SET, AND MAY NOT BE CHANGED IN THE FIELD
Direct Mode Operation (Pump Down) Single Level Service
When the liquid rises to the probe tip, the module energizes, changing the state of the load contacts. At this time, the internal LED will be lit. The
module remains energized until the liquid recedes below the probe tip. The module then de-energizes, turning off the internal LED, and returning the
switch contacts to their original shelf state.
Typical Operation: High level alarm
Inverse Mode Operation (Pump Up) Single Level Service
The module energizes with power, changing the state of the load contacts. At this time, the internal LED will be lit. When the liquid reaches the probe tip
the module de-energizes, turning off the internal LED, and returning the switch contact to the original shelf state. The module remains de-energized until
the liquid level recedes below the desired high switch point. The module then energizes, changing the state of the load contacts.
Typical Operation: Low level alarm
Direct Mode Operation (Pump Down) Differential Service
When the liquid rises to the “High” setpoint (probe on terminal 3) the module energizes, changing the state of the load contacts. At this time, the internal
LED will be lit. The module remains energized until the liquid recedes below the “Low” setpoint (probe on terminal 4). The module then de-energizes,
turning off the internal LED, and returning the switch contacts to their original shelf state.
Typical Operation: You have a vessel that you do not want to overfill, but also do not want to fall below a certain level. When the product reaches the
level of the high probe, a pump is started to transfer product to another vessel. When the level recedes below the low probe, the pump stops.
Inverse Mode Operation (Pump Up) Differential Service
The module energizes with power, changing the state of the load contacts. At this time, the internal LED will be lit. When the liquid rises to the “High”
setpoint (probe on terminal 3) the module de-energizes, turning off the internal LED, and returning the switch contacts to their original shelf state. The
module remains de-energized until the liquid level recedes below the “Low” setpoint (probe on terminal 4). The module then energizes, changing the
state of the load contacts.
Typical Operation: You have a vessel that you do not want to go empty. When you apply power to the module, the pump turns on and fills the vessel
until you reach the level of the high probe. The pump then shuts off. If you fall below the level of the low probe, the pump will start again to keep the
vessel filled.
AC Supply
2
3
8
1
45
7
6
Module Type 1 Connection
Reference
Low Probe
High Probe
- For single level service, use “H”
and “G” connections
- Tank, if metallic, may be used in
place of reference probe
(Connect G to earth ground, or to housing lug)
AC Supply
2
3
4
5
Module Type 3 Connection
Reference
Low Probe
High Probe
11
1
10
9
8
7
6
- For single level service, use “H”
and “G” connections
- Tank, if metallic, may be used in
place of reference probe
(Connect G to earth ground, or to housing lug)
One Probe
2
Black
3
Green
4
Blue
4
Blue
3
Green
5
White
Adjustable Sensitivity
Adjustable Sensitivity
(Utilizing add on board)
(250K)
250K
(5K) 5K
2
Black
1
Red
Pin 2 - Black
Detail
Color coding for Anderson
supplied Cable
Pin 1 - Red
1
Red
2 = Lug screw to housing
1 = Probe
Top - Looking Inside
Top - Looking Inside
Two Probes
1
Red
3
Green
Top - Looking Inside
If using a Type 3 Variable Sensitivity module, changes to the sensitivity may be made in the field. The following
diagram shows placement for individual resistors. The following chart illustrates the resistor values used to achieve
Sensitivity Required (Kohm) Resistor Value Required (Kohm)
If using a variable sensitivity resistor board, installation is shown in figure 14. If two
fixed resistors are already in place on the terminal screws of the socket, remove prior
to installation of the variable resistor board.
Variable Resistor Board Part number: 56014R0070
The sensitivity range of the Variable Sensitivity Board is from 5K ohm to 700K ohm.
These settings are achieved via the dual “One Turn” potentiometers located on the
board. As the sensitivity increases in a non-linear ohm/turn ratio, you may use the
chart shown above to achieve the proper setting.
BOTH potentiometers should be set to equal position for proper operation. Setting
should be at approximately 5% greater than that necessary for the product in the
vessel. You may refer to the chart shown in Figure 8 for sample sensitivity values.
2
Black
Pin 2 - Black
Pin 3 - Green
Color coding for Anderson
Detail
supplied Cable
3 = Lug screw to housing
1 = Shortest Probe
2 = Longest Probe
the desired sensitivity. Two resistors will be required for the value selected.
4.7 5.1
10.0 10.0
26.0 27.0
50.0 51.0
100.0 100.0
470.0 390.0
1,000.0 680.0
Pin 1 - Red
2
Black
1
Red
Top - Looking Inside
(Utilizing add on resistors)
(125K) 127K
Field Modifications to Probe Lengths
Probe lengths are available in one-inch increments from 3” to 72”. If a probe length must
be field modified, consult Technical Service for proper guidelines and procedures.
Three Probes
Pin 2 - Black
Pin 3 - Green
Color coding for Anderson
Detail
supplied Cable
3 = Lug screw to housing
1 = Shortest Probe
2 = Next Longest Probe
4 = Longest Probe
Four Probes
Pin 2 - Black
Pin 3 - Green
3 = Lug screw to housing
1 = Shortest Probe
2 = Next Longest Probe
4 = Next Longest Probe
5 = Longest Probe
475K (400K)
700K (500K)
Pin 5 - White
Color coding for Anderson
Detail
supplied Cable
11 Pin Octal Socket
11
1
2
3
4
5
7
6
Placement of Shunt
2
3
4
5
Pin 1 - Red
Pin 4 - Blue
Pin 1 - Red
Pin 4 - Blue
10
9
8
Resistors
11
1
10
9
8
7
6
Loading...