Concoa ALTOS 2 588 Series User manual

ADI 1100-D
Certified ISO 9001
24V ALTOS 2
™
Electronic Switchover
Controller
INSTALLATION AND OPERATING INSTRUCTIONS
Carefully Read These Instructions Before Operating
Carefully Read These
Controls Corporation of America
1501 Harpers Road • Virginia Beach, VA 23454
Telephone [phone] or 757-422-8330 • Fax [phone]
www.concoa.com
June 2022
Revision D

SAFETY
BASIC SAFETY PRECAUTIONS MUST BE FOLLOWED TO REDUCE THE RISK OF
FIRE, ELECTRICAL SHOCK OR INJURY.
• While the 24V Altos 2™ Electronic Switchover Controller (ESC) is dust and
moisture resistant, it is NOT water-proof or completely sealed. It should be
installed where it will not be subjected to rain or high concentrations of dust. Never
pour or spray liquids directly onto the product.
• Install the 24V Altos 2™ (ESC) where the ambient temperature range is between
0°F and 140°F.
• THIS PRODUCT IS NOT INTENDED FOR USE IN EXPLOSIVE
ENVIRONMENTS.
• DO NOT INSTALL THIS PRODUCT IN ANY HAZARDOUS ENVIRONMENT.
• If product appears damaged in any way, do not use and request service from
CONCOA.
USER RESPONSIBILITY
Service to this product should only be performed by CONCOA or an authorized
CONCOA agent. Requests for service may be made through CONCOA CUSTOMER
SERVICE at 1-800-225-0473. Written requests may be made using CONCOA’s FAX
number at 1-757-422-3125 or CONCOA’s E-MAIL at [email protected]
CONCOA accepts no responsibility for damage or injury if this product is modified in
any way.
CONCOA assumes/accepts no liability or responsibility for damage to individuals or
equipment that may occur when using this product

1
Index
Description of Product .........................................................................................................2
Power Requirements ............................................................................................................2
Device Output Relay Specifications ....................................................................................2
Understanding Device Operation.........................................................................................3
Mounting Requirements.......................................................................................................4
Installation Instructions........................................................................................................5
Connecting External Input Devices to the 24V Altos 2™ Electronic Switchover
Controller (ESC) ..................................................................................................................5
Circuit Board Styles.............................................................................................................5
Circuit Board Terminal Block Locations.............................................................................6
Table 1 – Terminal Block & Switch Descriptions...............................................................7
Hookup of Switching Device & Typical Inputs, Circuit Board Style A (“CV1”)...............8
Hookup of Switching Device & Typical Inputs, Circuit Board Style B (“CE”) .................9
Table 2 – Cable Information..............................................................................................10
Connecting Device Outputs ...............................................................................................11
Muting Audible Alarm.......................................................................................................11
Configuration using the LCD Screen.................................................................................12
Settings Menu ....................................................................................................................13
Source Settings...................................................................................................................14
Replace Set Point .......................................................................................................15
Units of Measure........................................................................................................16
System Settings..................................................................................................................17
Set Source Offset .......................................................................................................18
Set Source Max ..........................................................................................................19
Deadband ...................................................................................................................20
Audible Mode ............................................................................................................21
Power Save Mode ......................................................................................................22
Keypad Lockout.........................................................................................................23
Contrast......................................................................................................................23
Test Mode ..................................................................................................................24
Reset...........................................................................................................................25
About..........................................................................................................................26
Troubleshooting .................................................................................................................27
Warranty Information ........................................................................................................28
CE Declaration of Conformity for CE Approved Models .................................................29

2
DESCRIPTION OF PRODUCT
The CONCOA 24V Altos 2™ Electronic Switchover Controller (ESC), when connected
to a switching device such as CONCOA’s 5851100 Series pneumatic switchover
controller, signals the switching device to act based on 4-20mA inputs received from
external monitoring devices such as electronic weight scales or pressure transducers. The
readings from the 4-20mA input signals will be displayed locally on a 2.9” LCD screen
for up to 2 channels. The statuses of all inputs are also displayed locally with high
visibility multicolor LEDs that are green in the normal condition and turn red in the alarm
condition. The output signals to the switching device are sent through three dry contact
relay outputs, one for each input channel, and one for a master alarm.
POWER REQUIREMENTS
Input Voltage: External Power Supply
Universal input voltage 96-264 VAC, 50/60Hz.
Power Consumption: 2.5 watts
DEVICE OUTPUT RELAY SPECIFICATIONS:
Contacts: Normally Open/ Normally Closed Dry Contact
Contact Rating: 24 volts DC @ 1 amp Max.

3
UNDERSTANDING DEVICE OPERATION
Figure 1
Figure 1 shows the location of the various access parts, buttons, and indicators for the 24V Altos
2™ ESC. The 24V Altos 2™ ESC has a universal power supply.
Input signals coming from external devices such as electronic weight scales or pressure
transducers are connected to terminal blocks in the 24V Altos 2™ ESC (see Fig. 3) via
individual wires through a 1/2” conduit connection in the bottom of the enclosure.
The 24V Altos 2™ ESC provides output relay signals (dry contacts) to indicate the state of
sources 1& 2 and the master alarm. The master alarm is engaged when either source is in alarm
with signals brought out through terminal connectors on 3 terminal blocks (see Fig.3). Each
terminal block contains a common voltage input, a normally-closed contact, and a normally-open
contact.
Output relay signals are routed from the 24V Altos 2™ ESC terminal blocks via individual wires
through a 1/2” conduit connection on the bottom of the enclosure.
Figure 1 shows a view of the front panel which is laid out with two status lights representing
sources 1 and 2. The indicator lights are bi-colored LEDs (a single LED glows red or green) A
green LED indicates a normal condition. A red LED indicates an alarm condition. A flashing
green LED indicates standby condition.
On the left side of the front panel, a speaker is used to provide an audible indication of an alarm
condition. The alarm silence button in the upper right portion of the front panel allows the
operator to silence the audible alarm even while an alarm condition still exists.
In the center of the front panel is a 2.9” diagonal LCD screen used for displaying the status of
sources 1 and 2 as well as system configuration menus. On the right side of the screen are four
directional arrows used for navigating the configuration menu.
The 24V Altos 2™ ESC allows for a 4-20mA input signal from any device (e.g., transducer,
scale, etc.) for channel monitoring. The source configuration is selectable via the system menu.

4
The 4-20mA inputs are accessed via a terminal block containing the +24vdc supply line and the
signal return for each source. The source pressure or scale weight is displayed on the LCD screen
and, depending on the source alarm configuration and set point, the source LED with either be
green (normal state), flashing green (standby state), or red (alarm state).
If there are no alarm conditions, the 24V Altos 2™ ESC will show a green indicator next to the
status being monitored. When an alarm condition occurs, the color changes from green to red.
At the same time, the audible buzzer in the 24V Altos 2™ ESC, if enabled, will begin to sound.
The LCD screen will display the current source pressure or scale weight depending on the
source’s configuration. The set of contacts representing this alarm condition will alarm in the
relay output section of the 24V Altos 2™ ESC.
MOUNTING REQUIREMENTS
Figure 2

5
INSTALLATION INSTRUCTIONS
After mounting the 24V Altos 2™ ESC to the wall, wire any monitored devices through the
conduit connections and to the input terminal blocks (see Figures 3, 4, Table 1). Connect the
switching device (e.g., CONCOA 5851100 Series pneumatic switchover controller) to the relay
output terminal blocks (see Figures 3, 4, Table 1).
Turn the 24V Altos 2™ ESC on by plugging the unit directly into a wall outlet and turning the
power switch on the left side of the unit to the on position. The system may be tested once it is
connected to an external device by tripping the external inputs, causing the corresponding input
LED to turn red.
CONNECTING EXTERNAL INPUT DEVICES TO THE
24V ALTOS 2™ ELECTRONIC SWITCHOVER CONTROLLER
(ESC)
The 24V Altos 2™ ESC is designed to interface with up to 2 external 4-20 mA input signals
(transducers by default). The external device wires (+24Vdc out, signal in) are brought in
through a conduit connector on the left side on bottom of the box, and connect to terminal blocks
on the left hand side of the circuit board. Figures 3 & 4 and Table 1 outline how to connect
devices to the 24V Altos 2™ ESC.
The recommended cable for this assembly is 18-26 AWG wire (Alpha # 1176C or equivalent).
The length of each cable should be limited to 500 feet for pressure transducers and 1500 feet for
dry contact inputs. Table 2 shows CONCOA part numbers for cables that are available to
connect to various devices. Contact CONCOA for details.
After cutting the cable to length, remove the outer jacket to expose approximately 3/4 inch of the
internal conductors on both sides of the cable. Strip away 1/4-inch of the insulation on each of
the conductors, unscrew the terminal block, insert wire, and tighten screw. Test to ensure the
wire does not pull out of the connector.
CIRCUIT BOARD STYLES
Your 24V Altos 2™ Electronic Switchover Controller will have one of the following two styles
of circuit board. The style will be indicated by “CV1” or “CE” printed on the product nameplate
and box label:

6
Figure 3

7
Table 1

8
HOOKUP OF SWITCHING DEVICE & TYPICAL INPUTS
Figure 4 for Circuit Board Style A (“CV1”)

9
Figure 4 for Circuit Board Style B (“CE”)

10
Table 2
CABLES
The following products will be provided with a 25ft long cable appropriate for your application (customer to cut and
strip wires and select usage for wire colors):
•Products with a pressure switch gauge/gauges and a terminal block wiring arrangement.
•Products with intrinsic safety barriers – cable to hook up barriers to remote alarm.
•Products such as the IntelliSwitch II that have only a terminal block for alarm hookup.
Available Cables:
5296002-25-001 = 25ft Long 2 wire cable (wire colors: black, red)
5296002-100-001 = 100ft Long 2 wire cable (wire colors: black, red)
5296003-25-001 = 25ft Long 3 wire cable (wire colors: black, red, white)
5296003-100-001 = 100ft Long 3 wire cable (wire colors: black, red, white)
5296004-25-001 = 25ft Long 4 wire cable (wire colors: black, red, white, green)
5296004-100-001 = 100ft Long 4 wire cable (wire colors: black, red, white, green)
5296006-25-001 = 25ft Long 6 wire cable (wire colors: black, red, white, green, brown, blue)
5296006-100-001 = 100ft Long 6 wire cable (wire colors: black, red, white, green, brown, blue)
5296008-25-001 = 25ft Long 8 wire cable (wire colors: black, red, white, green, brown, blue, orange, yellow)
5296008-100-001 = 100ft Long 8 wire cable (wire colors: black, red, white, green, brown, blue, orange, yellow)

11
CONNECTING DEVICE OUTPUTS
The 24V Altos 2™ ESC provides output signals corresponding to the alarm conditions that it
senses, presented through relay contacts, and brought out to terminal blocks on the right hand
side of the circuit board connector at the bottom of the alarm. Signals are then routed through the
conduit connector on the right side of the box. A total of three relay output terminal blocks are
on the circuit board; one for each source and a master alarm signal. Each terminal block contains
the independent common input signal, a normally closed output, and a normally open output.
(See Figure 3 for terminal block locations
The recommended cable for making an output cable assembly is 18-26 AWG. The length of each
cable should be limited to 1500 feet. .) Table 2 shows CONCOA part numbers for cables that
are available to connect various devices. Contact CONCOA for details.
After cutting the cable to length, remove the outer jacket to expose approximately 3/4 inch of the
internal conductors on both sides of the cable. Strip away 1/4-inch of the insulation on each of
the conductors, unscrew the terminal block, insert wire, and tighten screw. Test to ensure the
wire does not pull out of the connector.
MUTING AUDIBLE ALARM
It is sometimes desirable to silence the audible alarm on the 24V Altos 2™ ESC. This can be
accomplished in one of two ways.
1) Pressing the alarm silence button on the top right hand side of the front panel will
temporarily silence the alarm. In this mode, the audible alarm will automatically sound
on the next asserted alarm
2) To permanently silence the alarm, power down the unit, open the front cover, and flip
SW5-1 off (open) (See Figure 32.).

12
CONFIGURATION USING THE LCD SCREEN
The 24V Altos 2™ ESC is equipped with an LCD screen for displaying system status and
configuration of the system. The 24V Altos 2™ ESC LCD screen displays system status by
default.
Figure 5

13
The front LCD screen is also used for modes and settings.
•Power on defaults to both the right and left sides being in Standby mode.
•On the home screen showing pressures and/or weights: Press the left and right buttons to toggle
Source 1 (left) and Source 2 (right) between the “In-Use” and “Standby” modes.
•Press the Up and Down buttons to enter other system menu screens.
Figure 6
• Once in a system menu screen the up and down keys allow the user to navigate the menu
selections. To enter a menu selection, press right/enter when the selection is highlighted.
To go back a level, press the left/back key. To disable the navigation buttons, power
down the unit, open the front cover and flip SW5-2 on (closed) (See Figure 3.). Pressing
the navigation buttons when the keypad is locked will cause the 24V Altos 2™ ESC to
display a keypad lock out warning for a couple of seconds before returning to the display
screen.
SETTINGS MENU
The 24V Altos 2™ ESC Settings Menu is divided into three sections: Source1, Source2, and
System. Pressing right/enter when the selection is highlighted enters the submenu.
Figure 7
•“Source 1” and “Source 2” = Input configuration settings for sources 1 and 2
respectively.
•“System” = System configuration settings.
Right /
Enter
Left /
Back
Up
Down

14
SOURCE SETTINGS
The Source Settings Menus “Source 1 “ and “Source 2” contain two settings for each source:
Replace Set Point and Units of Measure.
Figure 8

15
Replace Set Point
Replace Set Point determines the value at which the 24V Altos 2™ ESC will signal the
switching device to act.
Figure 9
Pressing up or down on a particular digit will modify only the selected digit. To navigate
between digits, press left or right. To save the selected setting, navigate to the far right digit and
press right again. The 24V Altos 2™ ESC will not allow the user to select a value outside the
maximum and minimum values displayed. The default value for this setting depends on your
selected units of measure as follows:
6000 PSIG
413.7 BAR
41368 kPa
600 LB
272.1 kg

16
Units of Measure
Units of Measure determines BAR, PSI, kPa, Lb, or Kg. The 24V Altos 2™ ESC will display
the selection for the specified source. The default setting is LB.
Figure 10

17
SYSTEM SETTINGS
The System Configuration menus contain thirteen settings: Set Src1 Offset, Set Src2 Offset, Set
Src1 Max, Set Src2 Max, Deadband Src1, Deadband Src2, Audible Mode, Power Save Mode,
Keypad Lockout, Contrast Adj, Test Mode, Reset, and About.
Figure 11

18
Set Source Offset
The Offset specified for a channel calibrates the 4-20mA signal for the specified input.
Figure 12
The default value for this setting is 0.
To Calibrate for Exact Weight at a Known Value:
To calibrate the scale to a known weight, place known weight on scale. Adjust value one digit at
a time by pressing up and down arrows until the Known Weight Value is displayed. Use left and
right arrows to move between digits. To save the value, press the right arrow once all three
digits display the value of the known weight.
To Calibrate at Zero LBS:
To calibrate the scale at zero LBS, do NOT place any weight on the scale. Adjust value one digit
at a time to zero on all digits by pressing the up and down arrows. Use left and right arrows to
move between digits. To save the value, press the right arrow once all three digits display the
value zero.
To Calibrate for Cylinder Content Weight:
If you know the weight of the contents of a FULL cylinder you plan to use, you can calibrate the
full cylinder weight as the weight of the contents. For example, you know a cylinder contains
100 LBS of ARGON and the full cylinder weight on the scale is showing 138 LBS. You can
calibrate the scale to show the 100 LBS when the FULL cylinder is on the scale.
To calibrate for cylinder content weight, place a FULL cylinder on the scale. Adjust value one
digit at a time by pressing up and down arrows until the Weight of the Cylinder Contents is
displayed (in the example above, you would put 100 here). Use left and right arrows to move
between digits. To save the value, press the right arrow once all three digits display the value of
the known weight of the cylinder contents.