INCON reserves the right to change this document and specications at any time without notice. INCON makes no
expressed or implied warranty with regard to the contents of this manual. INCON assumes no liability for errors or
omissions, or for any damages, direct or consequential, that may result from the use of this document or the equipment
that it describes.
Trademarks
INCON®, TS-5 Series®, System Sentinel®, SCALD®, Brite®, BriteBox®, BriteBus®, and BriteSensors® are registered
trademarks of Intelligent Controls. All brand and product names are trademarks or registered trademarks of their
respective companies.
Inspection of Materials
Visually inspect all components for defects or damage prior to installation. If any defect or damage is found, do not use the
product and contact INCON for further assistance.
Return Shipping Charges
INCON will not accept shipments of returned products without a Return Material Authorization (RMA) number. RMAs are
obtained by contacting INCON’s Technical Service Division — NO RMAs will be given without the unit’s serial number(s).
Returned material remains the property of the buyer until replaced or repaired.
Under Warranty
INCON will pay all freight and insurance charges for all “Under-Warranty” RMAs.
Non-Warranty
It is the buyer’s responsibility to prepay all freight and insurance charges for “Non-Warranty” RMAs.
Control Drawing ............................................................................................................................ 4
iii
Important Safety Messages
INCON equipment is designed to be installed in association with volatile hydrocarbon liquids such as gasoline and diesel
fuel. Installing or working on this equipment means working in an environment in which these highly ammable liquids
may be present. Working in such a hazardous environment presents a risk of severe injury or death if these instructions
and standard industry practices are not followed. Read and follow all instructions thoroughly before installing or working
on this, or any other related, equipment.
As you read this guide, please be aware of the following symbols and their meanings:
Warning
Caution
Danger
Warning
Warning
Warning
This symbol identies a warning. A warning sign will appear in the text of this document when a potentially
hazardous situation may arise if the instructions that follow are not adhered to closely. A potentially hazardous
situation may involve the possibility of severe bodily harm or even death.
This is a caution symbol. A caution sign will appear in the text of this document when a potentially hazardous
environmental situation may arise if the instructions that follow are not adhered to closely. A potentially
hazardous environmental situation may involve the leakage of fuel from equipment that could severely harm
the environment.
This symbol identies an electrical danger. An electrical danger sign will appear in the text of this document
when a potentially hazardous situation involving large amounts of electricity may arise if the instructions that
follow are not adhered to closely. A potentially hazardous situation may involve the possibility of electrocution,
severe bodily harm, or even death.
Follow all applicable codes governing the installation and servicing of this product and the
entire system. Always lock out and tag electrical circuit breakers while installing or servicing
this equipment and any related equipment. A potentially lethal electrical shock hazard and the
possibility of an explosion or re from a spark can result if the electrical circuit breakers are
accidentally turned on during installation or servicing.
Follow all federal, state and local laws governing the installation of this product and its associated
systems. When no other regulations apply, follow NFPA codes 30, 30A and 70 from the National Fire
Protection Association. Failure to follow these codes could result in severe injury, death, serious
property damage and/or environmental contamination.
When the Alarm Console is used to monitor tanks containing gasoline or other ammable
substances, you may create an explosion hazard if you do not carefully follow the requirements in
this manual.
Warning
1
All wiring must enter the console’s enclosure through the designated knockouts. An explosion
hazard may result if other openings are used. All wiring from sensors to the console must be run in
conduit separate from all other wiring. Failure to do so will create an explosion hazard.
Introduction
INTRINSICALLY
Rigid Conduit
Shown with wiring
shield cover removed
110/220 VAC
AC power
INTRINSICALLY SAFE WIRING ONLY
SAFE AREA
Relay
Connections
This manual contains installation instructions for the
INCON S940 Alarm Console.
Please carefully read this entire manual. Failure to
follow the instructions in this manual may result in faulty
operation, equipment damage, injury or death.
This equipment should only be serviced by an INCONcertied technician.
Product Description
The 4-channel Alarm console is a stand-alone unit that
monitors 4 intrinsically safe sensor contact closures and
provides a visual and audible alarm should one of the
normally closed contacts become open.
The unit also provides 2 SPDT dry relay contacts that can
be set to activate upon an alarm condition.
The S940 is typically used to monitor sumps, overll or
spill-containment areas.
Specications
Console Specications
Input Line Voltage:100-240 VAC + / - 10%, 50 / 60 Hz, 15W max
Input power fuse
rating
Operating
temperature
EnclosureNEMA 4, indoor / outdoor *
Dimensions6" X 6" x 4" (15.2 cm x 15.2 cm x 10.2 cm)
Relay contact rating 10A, 240VAC maximum (non-fused)
ConduitsTwo NPT, ½"
Intrinsic safetyClass I, Div 1, Group D
1A, 250 VAC, time delay
-25º C (-13º F) to +60º C (+140º F)
(Non-hazardous locations only)
Installation
Mounting
To mount the unit to the wall, rst attach the included
mounting tabs to the box (gure 1) and then attach it to
the wall.
Figure 1: Box Mounting Tab
Power Supply Wiring
NOTE: The S940 Alarm Console is set to operate with
between 100 to 240 VAC, 50 / 60 Hz. No setup is required.
The Alarm Console must be connected to a dedicated
circuit breaker, at the service panel, not exceeding 15
Amps.
To access wiring and programming, remove the 4 corner
phillips-head screws on the faceplate and pull the
faceplate straight out by holding the two faceplate knobs.
Electrical Hazard! Disconnect main
power to the console before removing
the faceplate.
* For outdoor use application, listed Type 4X conduit hubs
must be used.
Note: For power supply connection, use wires rated at
least 90 ºC (194 ºF).
Figure 2: Installation Wiring
2
1. Connect the right ground terminal to the earth
ground bus at the service panel. Use #14 AWG
copper conductor wire.
2. Connect the left ground terminal to the metal rigid
conduit used to feed service panel wiring with #14
AWG copper conductor wire.
3. Connect power wires to the appropriate terminals
on the power supply terminal strip: Ground, Line,
Neutral, Earth Ground.
Sensor Wiring
All sensor wiring is to be intrinsically
Warning
1. Remove the wire jumper from each contact input
that you plan to use.
2. Wire each normally closed sensor to the
appropriate terminals.
safe and run into the right side of
the wiring bay and be fully contained
within the intrinsically safe wiring
compartment. When replacing
the faceplate, make sure no wires
are pinched under the faceplate
compartment divider.
Programming
Relay Conguration
Choose which output relay will be triggered by each sensor
and activate them by moving the appropriate “Output
Relays” DIP switch to the “on” position. The DIP selector
switch is located in the wiring bay.
DIP
Switch
1
2Sensor 2
3Sensor 3
4Sensor 4
5
6Sensor 2
7Sensor 3
8Sensor 4
91Steady or Single Pulse Alarm
102Steady or Single Pulse Alarm
RelayEffect
Sensor 1
1
Sensor 1
2
Note: Only the following INCON sensors can be used
with the S940 console:
• TSP-ULS Universal Liquid Sensor
• TSP-HLS High Level Sensor
• TSP-UHS Universal Hydrostatic Sensor
• TSP-HFS Horizontal Float Switch Sensor
Using other sensors will violate the warranty.
Note: Sensors must be 3rd party or simple apparatus.
Relay Wiring
1. Wire the device to the relay terminal strip in
accordance with the instructions furnished by the
manufacturer of the device.
2. Observe the relays for terminal layout and
voltage / current limits (10A @ 240 VAC).
Operation
When the contact input senses an open condition the
corresponding red alarm LED will light and the annunciator
will sound, and if a relay has been programmed it will
change states.
The annunciator can be silenced by pressing the
silence / test button. It will continue to sound until this
button is pressed, even if the actual alarm condition clears.
DIP Switches
Figure 3: DIP Switch Location
The alarm LED (and relay if programmed) will turn off
when the alarm condition clears.
If there is no alarm condition, and the alarm reset button
is pressed, the audible alarm will sound and the relays will
activate. Press again to silence and turn off the relays.