ACI-Automation Components CTS-M5 Instruction Sheet
ACI
ACI
Automation Components, Inc.
TRANSMITTER/SENSOR
CTS-M5
TOXIC GAS
INSTALLATION
OPERATION AND MAINTENANCE
MANUAL
M-5 Operation And Maintenance Manual
Relay 1 (Warning)
Relay 2 (Alarm)
4 mA
CTS-M5 Configuration:
Default Settings
Settings Settings
1. Signal 4 mA See Table Below ________________
20 mA See Table Below ________________
2. Password 0017 ________________
3.* Relay 1 Actuation Enabled ________________
4. Relay 1 Setpoint (Actuation) See Table Below ________________
5. Relay 1 Release Point See Table Below ________________
(De-Actuation)
6. Relay 1 Actuation Delay 0 Minutes ________________
7. Relay 1 De-Actuation Delay 0 Minutes ________________
8.* Relay 2 Actuation Enabled ________________
9. Relay 2 Setpoint (Actuation) See Table Below ________________
10. Relay 2 Release Point See Table Below ________________
(De-Actuation)
11. Relay 2 Actuation Delay 0 Minutes ________________
12. Relay 2 De-Actuation Delay 0 Minutes ________________
13 Communication Protocol Optomux ________________
14. Digital Address 0001 ________________
15 Baud Rate 4800 ________________
Factory User
Note: Relay setpoints are included in the software; however relays are optional.
Gas Type
NO2 0 ppm 6.0 ppm 1.0 ppm 0.8 ppm 3.0 ppm 2.5 ppm
CO 0 ppm 125 ppm 25 ppm 20 ppm 50 ppm 40 ppm
NO 0 ppm 100 ppm 25 ppm 20 ppm 50 ppm 40 ppm
NH3 0 ppm 50 ppm 25 ppm 20 ppm 35 ppm 30 ppm
O2 0% 25%
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Default
20 mA
Default
(If Applicable)
Setpoint Release Point Setpoint Release Point
19.50%
Decreasing
20.00%
(If Applicable)
23.00%
Increasing
22.00%
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M-5 Operation And Maintenance Manual
Table Of Contents
Default Settings...........................................................................................................................................1
1. PRINCIPLES OF OPERATION ........................................................................................................3
1.1
D
ISPLAY
.............................................................................................................................................3
1.2
K
EYPAD AND FUNCTION CONFIGURATION
1.3
P
ASSWORD
1.4
O
UTPUT SIGNALS
1.5
M
ETER JACKS
1.6
S
IGNAL AND DISPLAY RANGE
1.7
O
PTIONAL RELAY PACKAGE
1.8
D
EFAULT CONDITIONS
1.9
S
ENSING AND CALIBRATION
1.9.1 Calibration ...................................................................................................................................5
1.9.2 Implications for Troubleshooting .................................................................................................5
2. FUNCTION AND CONFIGURATION .............................................................................................6
2.1
M
ENU STRUCTURE AND USE
2.2
C
ONFIGURATION AND CALIBRATION
2.3
H
ARDWARE CONFIGURATION
2.3.1 Output Signals ............................................................................................................................13
2.3.2 RS-485 End-of-Line Wiring and Termination ............................................................................13
2.3.3 Battery ........................................................................................................................................14
2.4
G
AS CALIBRATION
2.4.1 Equipment Required ...................................................................................................................14
2.4.2 Procedure ...................................................................................................................................15
2.4.3 Calibration Errors......................................................................................................................15
.........................................................................................................................................4
...............................................................................................................................4
....................................................................................................................................4
............................................................................................................4
...............................................................................................................5
.......................................................................................................................5
...............................................................................................................5
..............................................................................................................6
...........................................................................................................13
...........................................................................................................................14
.........................................................................................3
..................................................................................................7
3. FAULTS..............................................................................................................................................16
3.1
S
ELF-CHECK FAULTS
3.2
H
ARDWARE FAULTS
4. WIRING AND POWER SUPPLIES ................................................................................................19
........................................................................................................................16
.........................................................................................................................18
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M-5 Operation And Maintenance Manual
CTS-M5 Operating Manual
1. Principles of Operation
Figure 1 CTS-M5 Internal View - Features
1.1 Display
The display module is a 2-line by 8-character LCD. Standard reading in operation is
Gas Type
xxx Units
1.2 Keypad and Function Configuration
Relay settings and other configurable items are accessed through the keypad and menu
display.
The keypad is a set of 3 buttons recessed along the upper right side of the enclosure. It is
not necessary to open the cover for use of the keypad. Access to the menus is password
restricted. Press any key for 3 seconds to enter the menus. (See below for details)
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M-5 Operation And Maintenance Manual
1.3 Password
Factory preset default password is 0017.
Password can be changed. RECORD PASSWORD IN A SECURE PLACE. If the
password is lost, the unit must be returned to QEL to be reset
1.4 Output Signals
Options are 4-20 milliamp or 2-10 VDC linear. Choose the option by moving the jumper
on JP3. On over range concentrations the signal can exceed the range slightly.
Figure 2 Signal Configuration JP3
I
MPORTANT
: Voltage monitoring should be into a monitor with at least 50 000 ohms
input impedance. Voltage monitoring is not recommended over long distances, as
these signals are more susceptible to induced noise than current signals
1.5 Meter Jacks
Test pads accepting standard test probes are provided on the circuit card. These are
labeled SigA, SigB and Common
To test milliamp signals measure:
• SigA to Common shorts to internal ground.
• SigA to SigB without interrupting signal to monitor
To Test voltage signals measure:
• SigB to Common.
1.6 Signal and Display Range
It is important to distinguish between Signal Range (often called Span) and Display
Range.
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M-5 Operation And Maintenance Manual
Display Range is the range of concentrations the unit is capable of displaying
(which is the same concentration it will report on the digital communications).
The display range varies with the gas type.
Signal Range is the assignment of the 4 to 20 mA signal. Default assignment of 4
mA is zero concentration. The default setting for 20 mA varies with the gas type.
The Signal range is fully adjustable within the limits imposed by the Display Range. Both
the 4 mA level and the 20 mA level can be reassigned through the menu system. Please
note that this adjustment does not change the measurement resolution.
1.7 Optional Relay Package
Two relays are supplied; single pole double throw (SPDT; Form C) 1 Amp. Dry contacts
only. Configuration allows setpoint adjustment for actuation point, dead-band, and
delays, increasing or decreasing concentrations. The relay settings have the same range as
the Display Range, and are independent of Signal Range.
1.8 Default Conditions
Default conditions are those conditions, which occur:
• During the short wait state on Power On.
• In Fault status.
• In the menu tree.
In these situations the following conditions hold:
• Signal set at 4.0 milliamps (2 Volts)
• Relays set non-energized.
• Digital communications report 0; no alarm status and 4 milliamp equivalent
signal.
1.9 Sensing and Calibration
Sensor type: Various electrochemical.
1.9.1 Calibration
The sensor is strongly linear in it’s response to gas. It is therefore straightforward to
calibrate. Two gases are needed for calibration: Zero gas (clean air) and an appropriate
span gas. Adjustment is by one potentiometer on the circuit board.
1.9.2 Implications for Troubleshooting
The microprocessor will detect various component faults and out-of-range conditions,
and drop the output signal to 0.0 milliamps. When a fault is detected, both relays will be
deactivated as well. However, it cannot detect simple out of calibration conditions, which
can only be detected by applying a gas standard.
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M-5 Operation And Maintenance Manual
2. Function and Configuration
2.1 Menu Structure and Use
Note: While the keypad functions are available without opening the case. It is necessary
to open the case to apply the calibration gases. The ‘keypad’ switches are located in the
upper right side of the enclosure. See Figure 1 Page 3.
Display: The display is 2 line by 8 character alphanumeric. The top line contains the
feature name and the second contains the variable.
Keypad: The keypad consists of three (3) pushbutton switches.
S1 Scroll Up
S2 Scroll Down
S3 Enter/Accept
Display at Turn-On:
The display shows the following for about 2 seconds:
QEL M-5
Vx.xx Ry
Where: x.xx = the Software Version
y = the Software Revision
Followed for about 2 seconds by:
ElectrCh
Vx.xx Ry
Where: ElectrCh = Electrochemical
x.xx = the Sensor Algorithm Version
y = the Sensor Algorithm Revision
Display in Operation: The display shows
GAS
xxx Units
Where GAS will show the target gas, and xxx is concentration of
the gas. Units may be either ppm (parts per million) or %.
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