Macurco CD-12H, CD-12MC User Manual
Macurco™ CD-12H / CD-12MC
Carbon Dioxide Detector, Controller and Transducer
User Instructions
IMPORTANT: Keep these User Instructions for reference.
Table of Contents
1 GENERAL SAFETY INFORMATION ........................................................................................................................................... 3
1.1 Intended Use ........................................................................................................................................................................ 3
1.2 List of Warnings and Cautions within these User Instructions .............................................................................................. 3
2 USER INSTRUCTIONS AND LIMITATIONS ............................................................................................................................... 4
2.1 Use For ................................................................................................................................................................................. 4
2.2 Do Not Use For ..................................................................................................................................................................... 4
2.3 General Description .............................................................................................................................................................. 4
2.4 Features ............................................................................................................................................................................... 5
2.5 Specifications........................................................................................................................................................................ 5
3 INSTALLATION AND OPERATING INSTRUCTIONS ................................................................................................................. 6
3.1 Location ................................................................................................................................................................................ 6
3.2 General Wiring Information ................................................................................................................................................... 6
3.3 Mains Power Connection ...................................................................................................................................................... 6
3.4 Fan Relay Connection .......................................................................................................................................................... 6
3.5 Alarm Relay Connection ....................................................................................................................................................... 7
3.6 4-20mA Signal Connection ................................................................................................................................................... 7
3.7 Installation............................................................................................................................................................................. 7
3.8 Power Up ............................................................................................................................................................................ 10
3.9
Operation ............................................................................................................................................................................ 10
3.10 Default Configuration – Factory Settings ............................................................................................................................ 11
3.10.1 Selecting Default Configuration – “dEF” .................................................................................................... 11
3.10.2 Selecting Power Up Test Option – “PUt” ................................................................................................... 12
3.10.3 Selecting Display Option – “dSP” .............................................................................................................. 12
3.10.4 Selecting Buzzer Option – “bUZ” .............................................................................................................. 12
3.10.5 Selecting Alarm Relay Setting – “ArS” ...................................................................................................... 12
3.10.6 Selecting Alarm Relay Configuration – “Arc” ............................................................................................. 12
3.10.7 Selecting Fan Relay Settings – “FrS” ........................................................................................................ 12
3.10.8 Selecting Fan Relay Delay – “Frd” ............................................................................................................ 12
3.10.9 Selecting Fan Relay Minimum Runtime – “Frr” ......................................................................................... 12
3.10.10 Selecting Fan Relay Latching Option – “FrL” ............................................................................................ 13
3.10.11 Selecting Trouble Fan Setting Option – “tFS” ........................................................................................... 13
3.10.12 Selecting 4-20mA Output Option – “420” .................................................................................................. 13
3.11 Onboard Diagnostics .......................................................................................................................................................... 13
4 Maintenance .............................................................................................................................................................................. 14
4.1 End-of-life Signal ................................................................................................................................................................ 14
Cleaning ............................................................................................................................................................................. 14
4.2
4.3 Testing ................................................................................................................................................................................ 14
4.3.1 Operation Test .......................................................................................................................................... 15
4.3.2 Manual Operation Test ............................................................................................................................. 15
4.3.3 Carbon Dioxide Gas Test .......................................................................................................................... 16
4.4 Gas Testing ........................................................................................................................................................................ 16
4.4.1 Testing the Fan Relay ............................................................................................................................... 16
4.4.2 Testing the Alarm Relay ............................................................................................................................ 17
4.4.3 Testing the 4-20mA current loop ............................................................................................................... 18
4.4.4 Manual Calibration – CD-12MC ONLY ..................................................................................................... 18
5 Appendix A – Menu Structure .................................................................................................................................................... 20
5.1 Main Menu .......................................................................................................................................................................... 20
5.2 Auto Test Menu “bUZ” ........................................................................................................................................................ 21
5.3 Configuration Menu “CON” ................................................................................................................................................. 22
5.4 Select Test Menu “tst” ......................................................................................................................................................... 28
5.5 CAL Menu * CD-12MC Only ............................................................................................................................................... 29
6 MACURCO PRODUCTS LIMITED WARRANTY ....................................................................................................................... 30
Technical Support Contact Information ............................................................................................................................................. 30
General Contact Information ................................
............................................................................................................................. 30
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1 GENERAL SAFETY INFORMATION
WARNING
1.1 Intended Use
The Macurco CD-12H and CD-12MC are line voltage, dual relay Carbon Dioxide (CO2) detector, controller, and transducer. The CD12”x” has selectable 4-20 mA output, buzzer and digital display options. It is an electronic detection system used to measure the
concentration of Carbon Dioxide and provide feedb ack and automatic vent ilation control to help reduce CO
rooms, classrooms, meet ing halls or simil ar applications. Th e CD-12”x” is a low-level meter capable of displaying from 0-5000 ppm (part s
per million) of Carbon dioxide. The CD-12”x” is factory calibrated and 100% tested for proper operation.
The CD-12H uses an automated background calibration program to set the clean air level on a regular basis.
The CD-12MC has the same setting and featur es of the C D-12H w ith the addition of being a ble to perform a manual cal ibration. The C D-
12MC requires a manual calibration process at a minimum of once per year using the Macurco CD6-FCK calibration kit.
1.2 List of Warnings an d C a utions within these U s e r Instr uc t i ons
• Each person using this equipment must read and understand the information in these User Instructions before use. Use of this
equipment by untrained or unqualified persons or use that is not in accordance with these User Instructions, may adversely
affect product performance and result in serious injury or death.
• Use only for monitoring the gas which the sensor and instrument are designed to monitor. Failure to do so may result in
exposures to gases not detectable and cause serious injury or death. For proper use, see supervisor or User Instructions,
or call Technical Support at 844-325-3050.
• This equipment may not function effectively below 32°F or above 122°F (0°C or above 50°C). Using the detector outside of
this temperature range may adversely affect product performance and result in serious injury or death.
• This detector helps monitor for the presence and concentration level of a certain specified airborne gas. Misuse may pro duce
an inaccurate reading, which means that higher levels of the gas being monitored may be present and could result in
overexposure and cause serious injury or death. For proper use, see supervisor or User Instructions, or call Technical
Support at 844-325-3050.
• High voltage terminals (120/240 VAC) are located within this detector, presenting a hazard to service technicians. Only
qualified technicians should open the detector case and service the internal circuits. Ensure power is de-energized from the
detector relays prior to servicing the unit. Failure to do so may result in serious injury or death.
• Do not disassemble unit or attempt to repair or modify any component of this instrument. This instrument contains no user
serviceable parts, and substitution of components may impair product performance and result in serious injury or death.
• Using a certified gas with a concentration other than the one listed for this detector when conducting a calibration verification
test (bump test) will produce inaccurate readings. This means that higher levels of the gas being monitored may be present
and could result in overexposure and cause serious injury or death. For proper use, see supervisor or User Instructions, or
call Technical Support at 844-325-3050
• The following steps must be performed when conducting a calibration verification test (bump test) to ensure proper
performance of the monitor. Failure to do so may adversely affect product performance and result in serious injury or death.
When performing a calibration verification test (bump test) only use certified calibration gas at the required concentration level.
o Do not test with expired calibration gas.
o Do not cover or obstruct display or visual alarm cover.
o Ensure sensor inlets are unobstructed and are free of debris
concentr ations in conference
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2 USER INSTRUCTIONS AND LIMIT ATIONS
WARNING
WARNING
WARNING
Each person using this equipment must read and understand the information in these User Instructions before use. Use of this equipment by
untrained or unqualified persons or use that is not in accordance with these User Instructions, may adversely affect product performance and
result in sickness or death.
2.1 Use For
The CD-12”x” provides CO2 detection and automatic ventilation control for conference rooms, classrooms, meeting halls or similar
applications. Carbon dioxide is a colorless, odorless gas that is produced both by people exhaling CO
coal, oil, and wood. The outdoor concentration of carbon dioxide can vary from 350-450 parts per million (ppm) or higher in areas with
high vehicle traffic or industrial activity. The indoor CO
occupied, the amount of outdoor fresh air entering the area and other factors. CO
level depends upon the number of people present, how long an area has been
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concentrations indoors can vary several hundred
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parts per million in areas with many people present for an extended period and where fresh air ventilation is limited. Outdoor "fresh" air
ventilation is important as it can dilute CO
levels of the indoor environment. The amount of fresh air that should be supplied to a room
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depends on the type of facility and room. Ventilation should keep carbon dioxide concentrations below 1000 ppm and create indoor air
quality conditions that are acceptable to most individuals.
For applications storing or usin g CO
tanks, the detector will pr ovide notif icat ion i n the e ven t of a gas lea k. Such appl icat io ns include but
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are not limited to food storage, beverage dispensing, agriculture, fire suppression, medical, etc.
The CD-12H uses an automated background calibration program to set the clean air level on a regular basis. The CD-12H will maintain
accuracy if it is exposed to the “clean air reference valu e” (this reference value is the low est concentration to whi ch the sensor is exposed )
at least once per week.
The CD-12MC does not perform automated background calibrations and it is suggested to perform a Manual Calibration on the unit no
less than once per year using the Macurco CD6-FCK calibration kit.
Note:
This applies when used in typical indoor ambient air. The CD-12”x” can be used as a standalone detector. For use with the Macurco Detection
and Ventilation Control Panel (DVP-120 only), and other fire/security panels or building automation systems. Line voltage is provided to the CD-12”x”
with the 4-20mA communication loop connected back to the panel.
as well the burning of gasoline,
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Use only for monitoring the gas which the sensor and instrument are designed to monitor. Failure to do so may result in exposures to gases
not detectable and cause sickness or death. For proper use, see supervisor or User Instructions, or call Technical Support at 844-325-3050.
2.2 Do Not Use For
The CD-12”x” is not intended for use in hazardous locations or industrial applications such as refineries, chemical plants, etc. Do not
mount
the CD-12”x” where the normal ambient temperature is below 32°F or exceeds 122°F (0°C or above 50°C). The CD-12”x” mounts on a
type 4S electrical box supplied by the contractor. Do not install the CD-12”x” inside another box unless it has good air flow through it.
This equipment may not function effectively below 32°F or above 122°F (0°C or above 50°C). Using the detector outside of this temperature
range may adversely affect product performance and result in sickness or death.
2.3 General Description
The CD-12H is a line voltage, dual relay Carbon Dioxide (CO2) detector, and automatic ventilation contro ller. The CD-12”x” uses a
microcomputer controlled, electronic system to measure the concentration of CO
CD-12”x” has a low maintenance long life (15+ years) non-dispersive infrared (NDIR) sensor and optional gas test/calibration kits. The
CD-12”x” is a low-level meter capable of displaying from 0-5000 ppm of carbon dioxide.
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, actuate relays and provide a 4-20 mA output. The
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2.4 Features
• ETL LISTED to UL 61010-1, Certified to CAN/CSA Std. C22.2 No 61010-1
• Low level meter capable of displaying from 0-5000 ppm of CO
• Sensor Resolution of 50 PPM
• The CD-12 uses an automated background calibration program to set the clean air level on a regular basis *
• The CD-12MC uses a manual Calibration to set clean and polluted air levels using a Calibration Kit **
• Selectable fan and alarm relay activation
• 5 A SPDT fan relay controls starters of ventilation
• 0.5 A N.O. or N.C. alarm relay connects to warning devices or control panels
• 4-20 mA Current Loop
• Mounts on a standard 4x4 electrical box and becomes cover for the box
• Supervised system: any internal detector problem will cause the fan & alarm relay to activate
• Carbon Dioxide sensor has an expected 15-year life. EOL indicator after 180 months of sensor power-up
• Calibration verification test kit is available.
• Easy access, one screw removal allows for gas test and configuration
*CD-12H Only
**CD-12MC Only
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2.5 Specifications
• Power: 100-240VAC (50 – 60 HZ)
• Current: 1.0 A MAX
• Shipping Weight: 1 pound (0.45 kg)
• Size: 4 1/2 x 4 x 2 1/8 in. (11.4 X 11.4 X 5.3 cm)
• Color: White or dark gray
• Connections: plugs/terminals
• Mounting box: (not included) 4x4 electric
• Fan relay: 5 A, 240 VAC, pilot duty, SPDT, latching or non-latching
• Fan relay actuation: selectable at dIS (disabled), 600, 700, 800, 900, 1000 (default)…, 4800, 4900, 5000 ppm
• Fan Delay Settings of 0, 1, 3 (default), 5 and 10 minutes
• Fan Relay Minimum Runtime settings are 0 (default), 3, 5, 10 or 15 minutes
• Fan relay latching or non-latching (default) selectable
• Alarm relay: 0.5A 120 V, 60 VA
• Alarm relay actuation: selectable N.O. (default) or N.C.
• Alarm relay settings: “dIS” (disabled), 900, 1000, 1100, 1200, …4000(default), ….4900, 5000
• Current Loop, 4-20 mA for 0-5000 ppm CO
• Buzzer: 85 dBA at 10cm settable to off or on (default)
• Digital display: 4-digit LED selectable to off or on (default).
• Operating Environment: 32°F to 122° F (0°C to 50°C), 10 to 90% RH non-condensing
• Operating altitude: Up to 16,404ft (5,000m)
, selectable to off or on (default)
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5
3 INST A LLATION AND OPERATING INSTRUCTIONS
WARNING
WARNING
The following instructions are intended to serve as a general guideline for the use of the Macurco CD-12H / CD-12MC Carbon Dioxide
Detector. It is not to be considered all-inclusive, nor is it intended to replace the policy and procedures for each facility. If you have any
doubts about the applicability of the equipment to your situation, consult an industrial hygienist or call Technical Support at 844-325-
3050.
This detector helps monitor the presence and co ncen tra tion level of a certai n spe cifie d airb orne gas. M isu se may pro du ce an inaccurate
reading, which means that higher le vels of the gas being mo nitored may be pr esent an d co uld result in overexposure and cause serious
injury or death. For proper use, see supervisor or User Instructions, or call Technical Support at 844-325-3050.
3.1 Location
Mounting height will be depen dent on the appl ication. For applications with C O2 tanks, mount heig ht s houl d be about one foot abo ve t he
floor. For indoor air quality mount detector at breathing level, about 5 feet (1.5 meters) above the floor on a wall or column in a central
area where air movement is ge nerally good. The un it, on aver age, can co ver abou t 5,000 sq. ft. (465 sq. meters). The cover age depe nds
on air movement within the room or facility. Extra detectors may be needed near any areas where people work or where the air is
stagnant. The CD-12”x” mounts on a 4x4 electrical box supplied by the contractor. Do not install the CD-12”x” inside another box unless
it has good air flow through it. Do NOT mount the CD-12”x” where the normal ambient temperature is below 32°F or exceeds 122°F
(below 0°C or above 50°C).
High voltage terminals (120/240 VAC) are located within this detector, presenting a hazard to service technicians. Only qualified
technicians should open the detector case and service the internal circuits. Ensure power is removed from the detector relays prior to
servicing the unit. Failure to do so may result in serious injury or death.
3.2 General Wiring Inf or mation
With the exception of the safety ground, all field wiring is completed via modular connectors (provided). After wiring, simply plug the
modular connectors into the matching connectors on the back side of the detector.
3.3 Mains Power Connection
Mains connections should be done in accordance with National and Local Electrical Codes. Only qualified personnel should connect
Mains power to any device. Macurco r ecommen ds a mini mum w ire size of A WG18 and th e wire insulator must be r ated for 140°F (60°C)
service. The modular connector will accept wire from 12 to 24 AWG. The safety ground wire should be secured to the ground screw of
the metal electrical box. Tighten the screw and make sure the wire is snug. Ensure that the wire cannot be pulled out from under the
screw. The Line (L) and Neutral (N) wires should be stripped 1/4 in. (6.5 mm), insert the wire into the ”L” and “N” wire positions of the
modular Fan/Power connector and tighten the screw clamp. Ensure that the wire cannot be easily pulled from the connector. Plug the
modular connection into the Fan/Power connection and ensure that it latches into the header properly.
3.4 Fan Relay Connection
All the SPDT Fan relay terminals are available at the Fan/Power modular connector. Each fan relay terminal normally open, common
and normally closed (NO, COM, and NC) can acco mmodate a wire size 12 to 24 AWG. To install the w iring for the rela ys, disconnec t the
connectors from the header. Strip the insulation off each wire back approximately ¼ inch (6.5 mm), insert the bare wire into the terminal
and tighten the screw clamp. Ensure that the wire cannot easily be pulled from the connector. Plug the modular connection i nto the
Fan/Power connection and ensure that it latches into the header properly.
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3.5 Alarm Relay Connection
The external alarm connections (A and B) are available at the Alarm modular connector. There is no polarity for these connections. To
install the wiring for the alarm contacts, di sco nnec t the co nn ector from t he he ad er on the d etector. S tri p the in sulat ion off each wire back
approximately 1/4 in. (6.5 mm), insert the bare wire into the terminal and tighten the screw clamp. Ensure that the wire cannot easily be
pulled from the connector. When the wires are connected seat the modular connector into the header ensuring that the latch engages.
3.6 4-20mA Signal Connection
The positive and negative 4-20mA signal connections (+ and -) are available at the 4-20mA modular connector, a 2-position connector.
To install the wiring for the 4-20 mA contacts, disconnect the conne ctor from the hea der on t he detector. Strip the ins ulatio n off each wire
back approximately 1/4 in. (6.5 mm), insert the bare w ire into the terminal and t ighten the screw clamp. Ensur e that the wire cannot easily
be pulled from the connector. When the wires are c onnected seat the mo dular connector int o the header ensuring th at the latch engages .
Note: The 4-20mA current loop outputs may be used with the Macurco DVP-120 control panel or other systems. The 4-20mA signal
connections to detectors should be size AWG18 (minimum) for short runs. Refer to the table for recommended wire gauges. Do not
bundle detector 4-20mA signal connections with AC power cables to prevent electrical interference. If AC power connections must be
bundled with the detector 4-20mA signal cables, the signal connections should be made with a twisted pair of the appropriate gauge,
with an overall foil and braid shield. All shields should be terminated at the DVP-120 end of the cable only. A ground stud is provided
near the bottom left corner of the DVP-120 panel.
3.7 Installation
1. The CD-12”x” mounts on a 4” square (or 4x4) electrical box supplied by the contractor. Do not mount the CD-12”x” inside
another box, unless it has good air flow through it.
2. Connect the CD-12”x’ to the control cables with terminal plugs. When making connections, make sure the power is deenergized.
3. There are two terminals for Power: 100-240VAC (50 – 60 HZ)
4. There are two terminals for the dry alarm relay contacts, again with no polarity preference. The alarm relay can switch up to
0.5 A 120 V, or 60 VA. The alarm relay is activated if gas reaches or exceeds the alarm settings. See section
OPERATION of these User Instructions for details on relay settings.
5. The alarm relay can be configured to normally open (default) (N.O.) or normally closed (N.C.) and will activate if the gas
concentration exceeds alarm set point. It will deactivate once the gas concentration drops below the alarm set point. Note that
the “disable” setting will cause the alarm relay not to engage at all.
6. The dry contact, SPDT fan relay has three terminals. The common (COM.), normally open (N.O.) and the normally closed
(N.C.) contact. The fan relay can switch up to 5.0 A up to 240 VAC. See section 3.9 OPERATION
for details on relay settings.
7. The Fan Relay can be configured for latching or non-latching (default) when activated (when the gas concentration exceeds
fan relay setpoint). Once latched in, power will need to be interrupted or the “TEST” button pressed to un-latch the relay
condition.
8. The Fan Relay will engage if the fan setting Carbon Dioxide concentration is exceeded for longer than the Fan Relay Delay
time. Unless it is configured for latching, the fan relay will disengage once both conditions have been met:
• Carbon Dioxide concentration has dropped below fan setting
• Fan Relay Runtime has been exceeded
Note that the “disable” fan setting will cause the fan relay to not engage. The fan relay will engage in trouble fault condition (if
the Trouble Fan Setting Option is set to “ON”) and will disengage once trouble fault condition is cleared.
9. The Current Loop is 4 mA in clean air and 4-20 mA for 0-5000 ppm CO
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of these User Instructions
3.9
7
3.7.1 4-20mA graph
3.7.2 Use with Alarm Panel
8
3.7.3 Multiple CD-12 Installation
3.7.4 DVP-120 Control Panel Connection
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3.7.5 Alternate connection to the alarm panel
In this application (3.2.7 Alternate connection to alarm panel
) the Fan or primary relay is used as a low-level alarm relay. The Alarm or
secondary relay is used as a supervisory relay when utilized in the normally closed configuration. The CD-12”x” monitors all critical
functions of the unit through software diagnostics that continually test and verify its operations. If a problem is found, the unit will switch
to a fail-safe/error mode or trouble condition. In this error mode, the Fan* and Alarm rela ys will be activated indi cating the trouble c ondition
at the panel and the CD-12”x display will flash the error. *See the
Trouble Fan Setting Option.
3.8 Power Up
The CD-12”x” cycles through an internal self-test cycle for the first minute that it is powered. The unit will execute the test cycle any time
power is de-energized and re-energized (i.e. power failure). During the self-test cycle, the unit will display the firmware version number,
then count down from 60 to 0 (if the display setting is “On”) and finally go into normal operation. The alarm relay will be activated for 10
seconds and the fan relay for 60 seconds during the power-up cycle unless the “Power Up Test” (PUt) option is OFF. The indicator light
(LED) will flash green during the self-test cycle. At the end of the 1-minute cycle, the unit will take its first sample of the air and the
indicator light will turn solid green.
3.9 Operation
1. With the display function turned “On”, the CD-12”x” will show the current concentration of CO2 ppm in the air. Normal outdoor
concentration ranges between 350-450 ppm. When the CO
example) the display will flash back and forth between “FAn” and “2000”. With the display function turned “Off”, the display
does not show the CO
concentration but will show “FAn” as long as the fan relay is activated.
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2. With the display function turned “On” and the CO
concentration reaching the Alarm Relay setting, (4000 ppm, for example)
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the display will flash back and forth between “ALr” and “4000”. The buzzer will sound indicating “Alarm” if the buzzer is turned
“On”. With the display function turned off the display does not show the CO
relay is activated.
concentration reaches the Fan Relay setting (2000ppm, for
2
concentration, but will show “ALr” when the Alarm
2
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3. With the 4-20 mA function turned “On” and the CO2 concentration climbing, the 4-20 mA signal will ramp up corresponding to
Setting:
Default:
Power Up Test
On
Display
On
Buzzer
On
Alarm Relay Setting
4000 ppm
Alarm Relay Configuration
Normally Open (NO)
Fan Relay Setting
1000 ppm
Fan Relay Delay
3 minutes
Fan Relay Minimum Runtime
0 minutes
Fan Relay Latching
Off
Trouble Fan Setting
Off
4-20mA
On
the concentration (0-5000 ppm, for example). The display will show “FAn” and “ALr” and sound as outlined above.
3.10 Default Configuration – Factory Settings
To change settings, remove the Philips screw on the front of the CD-12”x”. Pull off the front cover of the unit.
3.10.1 Selecting Default Configuration – “dEF”
To select the Default Configuration, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the
Enter button to enter the Con menu. The first selection is the “dEF” or Default setting. Push Enter. If it is already in Default
configuration, there will be no action. If it is not already in Default configuration, “nO” will be displayed. Push Next to change it to “YES”
(flashing) then push Enter to confirm the change (solid) and push Enter again to return to “dEF” in the con menu. Push Next until “End”
is displayed then push Enter to get back to normal operation.
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3.10.2 Selecting Power Up Test Option – “PUt”
To select the Power Up Test Configuration, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then
push the Enter button to enter the Con menu. Then push the Next button to get to the second selection “PUt” or Power Up Test
setting. Push Enter. If the test is “On” push Next to turn it “OFF” (flashing) then push Enter to confirm the change (solid) and push
Enter again to return to “PUt” in the Con menu. Push Next until “End” is displayed then push Enter to get back to normal operation.
3.10.3 Selecting Display Option – “dSP”
To select the Display Configuration, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the
Enter button to enter the Con menu. Then push the Next button to get to the third selection “dSP” or Display setting. Push Enter. If
the display is “On” push Next to turn it “OFF” (flashing) then push Enter to confirm the change (solid) and push Enter again to return to
“dSP” in the Con menu. Push Next until “End” is displayed then push Enter to get back to normal operation.
3.10.4 Selecting Buzzer Option – “bUZ”
To select the Buzzer Configuration, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the
Enter button to enter the Con menu. The fourth selection is the “bUZ” or Buzzer setting. Push Next twice to get to “bUZ” then Enter. If
the display is “On” push Next to turn it “OFF” (flashing) then push Enter to confirm the change (solid) and push Enter again to return to
“bUZ” in the Con menu. Push Next until “End” is displayed then push Enter to get back to normal operation.
3.10.5 Selecting Alarm Relay Setting – “ArS”
To select the Alarm Relay Setting, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the
Enter button to enter the Con menu. The fifth selection is the “ArS” or Alarm Relay Setting. Push Next three times to get to “ArS” then
Enter. If the display is “dIS” (disabled) push Next to change it to 900, 1000, 1100, 1200, …, 4000 (default), 4800, 4900, 5000 ppm
(flashing) then push Enter to conf irm the chang e (solid) and push Enter again to return to “ArS” in the Con menu. Push Next until “End”
is displayed then push Enter to get back to normal operation.
3.10.6 Selecting Alarm Relay Configuration – “Arc”
To select the Alarm Relay Configuration, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push
the Enter button to enter the Con menu. The sixth selection is the “Arc” or Alarm Relay Configuration. Push Next four times to get to
“Arc” then Enter. If the relay is “nO” (normally open) push Next to turn it to “nC” (flashing) then push Enter to confirm the change (solid)
and push Enter again to return to “Arc” in the Con menu. Push Next until “End” is displayed then push Enter to get ba ck to normal
operation.
3.10.7 Selecting Fan Relay Settings – “FrS”
To select the Fan Relay setting, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the Enter
button to enter the Con menu. The seventh selection is the “FrS” or Fan Relay setting. Push Next five times to get to “FrS” then
Enter. If the fan relay i s “dIS” (disabled) push Next to change it to 600, 700, 800, 900, 1000 (default)…, 4800, 4900, 5000 ppm (flashing)
then push Enter to confirm the change (solid) and push Enter again to return to “FrS” in the Con menu. Push Next until
“End” is displayed then push Enter to get back to normal operation.
3.10.8 Selecting Fan Relay Delay – “Frd”
To select the Fan Relay Delay setting, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the
Enter button to enter the Con menu. The eighth selection is the “Frd” or Fan Relay Delay. Push Next six times to get to “Frd” then
Enter. If the de
(solid) and push Enter again to return to “Frd” in the Con menu. Push Next until “End” is displayed then push Enter to get back to
normal operation.
lay is “0” (disabled) push Next to change it to 1, 3, 5, or 10 minutes (flashing) then push Enter to confirm the change
3.10.9 Selecting Fan Relay Minimum Runtime – “Frr”
To select the Fan Relay Minimum Runtime setting, in normal mode, push the Next button to get to “Con” or the Configuration menu.
12
Then push the Enter button to enter the Con menu. The ninth selection is the “Frr” or Fan Minimum Run Time. Push Next seven
times to get to “Frr” then Enter. If the runtime is “0” (disabled) push Next to change it to 3, 5, 10 or 15 minutes (flashing) then push
Enter to confirm the change (solid) and push Enter again to return to “Frr” in the Con menu. Push Next until “End” is displayed then
push Enter to get back to normal operation.
3.10.10 Selecting Fan Relay Latching Option – “FrL”
To select the Fan Relay Latching Option, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push
the Enter button to enter the Con menu. The tenth selection is the “FrL” or Fan Relay Latching Option. Push Next nine times to get to
“FrL” then Enter. If latching is “OFF” push Next to turn it to “ON” (flashing) then push Enter to confirm the change (solid) and push
Enter again to return to “FrL” in the Con menu. Push Next until “End” is displayed then push Enter to get back to normal operation.
3.10.11 Selecting Trouble Fan Setting Option – “tFS”
To select the Trouble Fan Setting Option, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then
push the Enter button to enter the Con menu. The eleventh selection is the “tFS” or Trouble Fan Setting Option. Push Next ten times
to get to “tFS” then Enter. If Trouble Fan Setting is “OFF” push Next to turn it to “ON” (flashing) then push Enter to confirm the change
(solid) and push Enter again to return to “tFS” in the Con menu. Push Next until “End” is displayed then push Enter to ge t back to
normal operation.
3.10.12 Selecting 4-20mA Output Option – “420”
To select the 4-20mA Output Option, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the
Enter button to enter the Con menu. The twelfth selection is the “420” or 4-20mA Output Option. Push Next eleven times to get to
“420” then Enter. If the 4-20mA is “On” push Next to turn it to “OFF” (flashing) then push Enter to confirm the change (solid) and push
Enter again to return to “420” in the Con menu. Push Next until “End” is displayed then push Enter to get back to normal operation.
3.11 Onboard Diagnostics
The CD-12”x” monitors all critical functions of the unit through software diagnostics that continuou sly test and verify unit operations. If a
problem is found, the unit will switch to a fail-safe/error mode or trouble condition. In this error mode, the Alarm relay will be activated,
the 4-20 mA current loop will go to 24 mA, the unit will display the error code, the green status indicator LED light will flash and the
buzzer will chirp intermittently. The Fan relay will also engage if the Trouble Fan Setting Option is set to “ON”. This is a safety
precaution. To clear this mode, simply turn off power to the unit for a few seconds or push the ENTER/TEST switch (inside the unit).
This will cause the unit to restart the 1-minute self-test cycle.
The 4-20 mA signal can be used for troubleshooting:
• 0 mA is most likely a connection problem
• 4-20 mA is normal gas reading range (0-5000 ppm)
• 24 mA indicates a Trouble condition
Error Codes
• t001 - Trouble with the sensor signal
• t002 - Temperature compensation failed
• t004 - EEPROM bad checksum
• t008 - IR lamp trouble
• t010 - Bad EEPROM
• t020 - Bad calibration
• t040 - Factory calibration failure
• t080 - ADC trouble
100 - Under range
• t
• t200 - Sensor expired
• t400 - Pressure sensor trouble
• t800 - PCBA not tested
13
WARNING
WARNING
If the error mode repeats frequently, check for continuous power and proper voltage. If power is not the problem and a unit has
repeating error conditions, it may need to be returned to Macurco for service, per these User Instructions.
If the error mode indicates “Sensor expired” see section 4.1 End-of-life Signal of these User Instructions.
4 Maintenance
The CD-12”x” is low maintenance. The unit uses a long life NDIR sensor that has a 15-year life expectancy (in normal conditions). The
CD-12H uses an automated background calibration program to set the clean air level on a regular basis. The CD-12H will maintain
accuracy if it is exposed to the “clean air reference valu e” (this reference value i s the lowest concentration to w hich the sensor is exposed)
at least once per week.
Note: This applies when used in the typical indoor ambient air with weekly unoccupied periods.
All maintenance and rep air of p roduct s manuf a ctured b y M a curco a re to be p erforme d a t t he appr opriat e M acur co manuf acturin g fa cil ity .
Macurco does not sanction any third-party repair facilities.
Note: There is not a field calibration procedure for the Macurco CD-12H.
4.1 End-of-life Signal
The CD-12”x” has a long life, the non-replaceable infrared sensor (IR Sensor). Fifteen (15) years after t he CD-12”x” is installed th e sensor
end-of-life signal will be activated indicating that the CD-12”x” has reached the end of its typical usable life. The end-of-life signal will
cause an error code t200 “Sen sor expired”. S ee section 3.6.2 Error Codes
the "ENTER/TEST" button or by temporarily dropping power to the unit. The end-of-life signal provides the user an opportunity to test
and/or calibrate the sensor (CD-12MC only) assuring that it is stil l perfor ming w ithin a cce pt able para meter s though the sensor is nearing
the end of its expected life. The silence function will continue to be available for 29 days after the CD-12”x” initiates the initial end-of-life
signal. After this 29-day period, the CD-12”x” can no longer be silenced and the unit must be replaced.
. The end-of-life signal can be silenced for 48 ho urs by pr essing
Do not disassemble unit or attempt to repair or modify any component of this instrument. This instrument contains no user serviceable
parts and substitution of components may impair intrinsic safety, which may adversely affect product performance and result in
sickness or death.
CAUTION
Avoid the use of harsh cleaning materials, abrasives and other organic solvents. Such materials may permanently scratch the surfaces
and damage the display window, labels, sensor or instrument housing. High voltage terminals (100-240VAC) are located within this
detector, presenting a hazard to service technicians. Only qualified technicians should open the detector case and service the internal
circuits. Ensure power is removed from the detector prior to cleaning the unit. Failure to do so may result in serious injury or death.
4.2 Cleaning
Cleaning of the external surfaces is best carried out using a damp cloth with a mild detergent or soap. Use a vacuum cleaner with a soft
brush to remove dust or contamination under the cover. Do not blow out the sensor with compressed air.
4.3 Testing
Using a certified gas with a co ncentration ot her tha n the one listed for t his dete ctor when c ondu cting a cali bration ver ificati on test ( bump
test) will produce inaccurate readings. This means that higher levels of the gas being monitored may be present and could result in
overexposure and cause sickness or death. For proper use, see supervisor or User Instructions, or call Technical Support at
844-325-3050.
14
All CD-12”x” units are factory calibrated and 100% tested for proper operation. During normal operation, the green status indicator LED
light will be on steady, the fan & alarm relay will be in standby mode and the 4-20 mA output will be at 4mA (in clean air). The unit also
performs a regular automatic self-test during normal operation. If the unit detects an improper voltage or inoperable component, it will
default into Error mode. In this error mode, the Alarm relay will be activated, the 4-20 mA current loop will go to 24 mA, the unit will
display the error code, the green status indicator LED light will flash, and the buzzer will chirp intermittently. The Fan relay will also
engage if the Trouble Fan Setting Option is set to “ON”.
4.3.1 Operation Test
Check that the green CD-12”x” status indicator LED light is illuminated continuously. If not, do not proceed with the tests. If the unit is in
error mode, contact your local representative or Macurco technical support representative for information on resolving the problem.
1. Remove the single screw in the middle of the front cover of the CD-12”x”.
2. Remove the front cover.
3. Observe the LED light on the front of the CD-12”x”.
4. If the light is solid green proceed to step 6.
5. If the green status indicator LED light is off or flashing, refer to the General section above.
6. Locate the switch labeled ENTER/TEST on the left side of the printed circuit board. Press the Test switch once.
7. The CD-12”x” will step through a cycle test:
a. The display progresses through the BUZ (Buzzer Test), Art (alarm relay test), Frt (fan relay test) then 42t (4-20 mA
output test). Make sure that the settings are “on” or not disabled “diS”.
b. During the first 10 seconds of the test cycle, the display will show BUZ and set off the audible buzzer
c. The alarm relay will be closed, so any devices connected to that relay will be tested.
d. The Fan relay will be activated for the next 1 minute of the test, so if the fan circuits are wired in the normal manner,
the fan should run.
e. The 4-20mA output will then ramp up from 4 to 16 mA over the next 130 seconds of the test, so if the circuit is wired
in the normal manner, the control panel or building automation system should respond.
f. At the end of the test cycle, the light will turn green and be on steady (Normal Operation), the fan & alarm relay will
be in standby mode and the 4-20 mA output will return to 4 mA (in clean air).
8. When testing is completed reassemble the unit or units.
4.3.2 Manual Operation Test
This option gives the user th e oppor tunity t o manual ly initiate an indiv idual test for each r elay, the anal og output a nd the sensor response
to gas.
From normal operation mode press the Next button 2 times to get to the Test Mode (tSt).
Press the Enter button once to get into the Test Menu.
Press the Next button to scroll through the five test options and press Enter to initiate the selected test.
Note that if the relay or 4–20 mA output has been disabled, the test selection will not be displayed in the test menu.
bUZ- Buzzer Test, 3 seconds
Art - Alarm Relay Test, 5 seconds
Frt - Fan Relay Test, 60 seconds
42t - 420 loop test, 25 seconds
gtS - Gas Test, 3 minutes (no output to the panel during the gas test)
The display will flash during the test, or in the case of the gas test, the gas level will alternate with gtS. Once the test is complete, the
display will return to the steady display. To exit the test menu, press the Next button until “End” is displayed then, press Enter to return
to
normal mode.
15
4.3.3 Carbon Dioxide Gas Test
WARNING
The following steps must be performed when conducting a calibration verification test (bump test) to ensure proper performance of the
monitor. Failure to do so may adversely affect product performance and result in serious injury or death.
• When performing a calibration verification test (bump test) only use certified calibration gas at the required concentration level.
• Do not test with expired calibration gas.
• If the instrument cannot be calibrated, do not use until the reason can be determined and corrected.
• Do not cover or obstruct display or visual alarm cover.
• Ensure sensor inlets are unobstructed and are free of debris.
Field Calibration Kit – CD6-FCK
A Field Calibration Kit, CD6-FCK, is needed to complete a CO
• CD6-FCK: (2) Gas Cylinders
o (1) 34L 400ppm carbon dioxide (CO
o (1) 34L 5000ppm carbon dioxide (CO
) in air
2
2
• Gas regulator 0.2 LPM
• About two feet of tubing
• CD-6-TH calibration hood
FCK Information
Several detectors can be calibrated with one FCK. The only limitation is the amount of gas in the cylinder. The 34-liter cylinder has
approximately 175 minutes of continuous test run time. Replacement cylinders are available. The gas cylinder should be replaced when
the pressure gauge on the regulator shows 25-psi or less or has reached its expiration dat e.
Note: For optimum test results it is suggested that the unit be in clean air, green light on, and be in a low ambient air flow.
gas test. These are available through local distribution.
2
) in air
4.4 Gas Testing
4.4.1 Testing the Fan Relay
1. Remove the Philips screw on the front of the CD-12”x”. Remove the front cover.
2. Open the FCK. Connect the 5000-ppm gas cylinder to the regulator.
3. Check the pressure gauge on the regulator. If you have 25-psi or less you will need to replace the gas canister. Check the
expiration date on the cylinder, if it has passed the expiration date the cylinder should be replaced.
4. Assemble regulator, hose, and Test Hood and place the Test Hood over the CO
Note: The time to activate the Fan relay depends on the delay setting. See section 3.5.8 Selecting Fan Relay Delay
sensor.
2
16
5. Turn on the regulator to start the gas flow and wait with the gas applied continuously.
6. With the display function turned “On”, the CD-12”x” will show the current concentration of CO
in the air. When the CO2
2
concentration reaches the Fan Relay setting (2000 ppm, for example) the display will flash back and forth between “FAn” and
“2000”. With the display function turned ”Off”, the display does not show the CO
concentration but will show “FAn” as long as
2
the fan relay is activated.
Note: If the Fan relay does not close within 2 minutes, there are five possibilities:
a. The gas cylinder is empty, check the pressure gauge. Replace the gas cylinder if 25psi or less.
b. Gas cylinder has reached its expiration date. Replace the gas cylinder.
c. Unit needs to be re-calibrated (automated background calibration for CD-12, Manual Calibration for CD-12MC) then
re-test. The detector is in need of servicing (contact Technical Support for at 844-325-3050 servicing options).
a. The detector has fan relay set to disable (diS). Set fan relay to 2000 ppm and repeat the test.
b. The detector has fan relay delay set to 3 minutes. Set fan relay delay to 0 and repeat the test.
7. Remove the gas from the sensor. Proceed to Test the Alarm relay or replace the top cover.
4.4.2 Testing the Alarm Relay
Note: The CO2 concentration to activate the Alarm relay depends on the setting.
1. Connect the 5000-ppm cylinder of carbon dioxide to the regulator.
2. Check the pressure gauge on the regulator. If you have 25-psi or less you will need to replace the gas canister. Check the
expiration date on the cylinder, if it has passed the expiration date the cylinder should be replaced.
3. Place the Test Hood over the CO
4. The Fan relay should activate according to the settings.
5. With the display function turned “On” and the CO
the display will flash back and forth between “ALr” and “4000”. The buzzer will sound indicating “Alarm” if the buzzer is turned
“On”. With the display function turned off the display does not show the CO
relay is activated.
Note: If the Alarm relay fails to operate within 2 minutes, there are four possibilities:
a. The gas cylinder is empty, check the pressure gauge. Replace the gas cylinder if 25-psi or less.
b. Unit needs to be re-calibrated (automated background calibration and re-test).
c. The detector is in need of servicing (return unit to the factory for servicing).
d. The detector has Alarm relay set to disable (diS). Set Alarm relay to 4000 ppm and repeat the test.
sensor. Turn on the regulator to start the gas flow.
2
concentration reaching the Alarm Relay setting, (4000 ppm, for exampl e)
2
concentration, but will show “ALr” when the Alarm
2
17
6. Remove the gas from the sensor after Test. Proceed to Test the 4-20mA output or replace the top cover.
4.4.3 Testing the 4-20mA current loop
1. Connect the 5000-ppm cylinder of carbon dioxide to the regulator.
2. Check the pressure gauge. If there is 25-psi or less the cylinder should be replaced.
3. Place the cap from the regulator over the CO
sensor. Turn on the regulator to start the gas flow.
2
4. The Fan relay should activate according to the settings.
5. The Alarm relay should activate according to the settings.
6. The 4-20 mA output should ramp up from 4mA in clean air to 20mA at 5000 ppm. See 4-20 mA diagram
.
Note: If the 4-20mA output does not ramp up within 2 minutes, there are four possibilities:
a. The gas cylinder is empty, check the pressure gauge. Replace the gas cylinder if 25-psi or less.
b. Unit needs to be re-calibrated (automated background calibration and re-test).
c. The detector is in need of servicing (return unit to the factory for servicing).
d. The detector has 4-20 mA option set to “OFF”. Set 4-20mA option to “On” and repeat the test.
7. Remove the gas from the sensor. Re-assemble the CD-“x” (make sure the LED is aligned with the front case hole). You are
done.
4.4.4 Manual Calibration – CD-12MC ONLY
Note: For optimum calibration results the unit should be in the clean air and be in a low ambient air flow.
1. Remove the Philips screw on the front of the CD-12MC. Remove the front cover.
2. Open the FCK. Connect the 400-ppm gas cylinder to the regulator.
3. Check the pressure gauge on the regulator. If you have 25-psi or less you will need to replace the gas canister. Check the
expiration date on the cylinder, if it has passed the expiration date the cylinder should be replaced.
4. Assemble regulator, hose, and Calibration Hood and place the hood over the CO
sensor.
2
5. On the detector press the Menu / Next button three times to get to the CAL menu. Press Enter / Test button
6. With the display showing “400” press Enter / Test button. The display will begin flashing “400” and “____”.
7. Turn on the regulator to start the gas flow and wait with the gas applied continuously.
18
Note: The sensor will look for gas for 90 seconds. If no gas is applied or detected in that time, the display will return to “400”.
8. When the sensor detects the gas, the display will flash back and forth between the Gas concentration and CAL, then the
calibration will progress, and the display will show the gas level for a maximum of 165 seconds.
9. When the calibration is successful, the display will flash back and forth between Gas concentration and PAS, then the display
will show the calibration gas level and the calibration is done.
10. If the calibration fails, the display will flash back and forth between the gas concentration and FAiL. If this occurs, check the
pressure gauge on the regulator. If the pressure is less than 25 psi the flow of gas may not be adequate to properly calibrate
the unit. If there is proper pressure in the cylinder repeat steps 6 through 8. If the unit fails to calibrate twice contact Technical
Support: 844-325-3050.
11. Once the calibration has passed, remove gas and disassemble the cylinder and regulator.
12. Re-assemble the CD-12MC (make sure the LED is aligned with the front case hole).
13. See Calibration Flowchart on the inside of the housing, or section 5.5 CAL Menu
.
19
5 Appendix A – Menu Structure
Normal Mode
“Con”
Configuration Mode
E/T
M /N
“tst”
Test Mo de
M /N
M /N
E/T
M /N
E/T
“CAL”
Calibration
(CD6MC only)
bUZ
CAL
E/T
Config 1
tst
Normal
Wait
Wait
Wait
5.1 Main Menu
20
5.2 Auto Test Menu “bUZ”
bUZ
“bUZ”
Buz zer t est
“Art”
Alar m re lay t est
“Frt”
Fa n rel ay tes t
“420”
Current loop test
Normal
M /N E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
Wait
21
5.3 Configuration M e n u “ CON ”
“dEF”
Default
“Put”
Power up test
“dSP”
Display mode
Deafult
value s?
“YES”
“_nO”
E/T
M /N
Wait
M /N
E/T
M /N
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
WaitE/T
M /N
Wait
“_no”
“YES”“ /YES”
“ / _nO”
E/T
Wait
M /N
Config 1
“_On”
“ / oFF”
“ / _On”
“oFF”
“_On”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – ON i n
this example
Wait
“_On”
“ / oFF”
“ / _On”
“oFF”
“_On”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – ON i n
this example
Wait
“bUZ”
Buzzer mode
“_On”
“ / oFF”
“ / _On”
“oFF”
“_On”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – ON i n
this example
Wait
M /N
Config 2
M /N
Normal
Wait
Wait
Wait
Wait
22
Config 2
ArS
Alarm Relay
Setting
“4000”
“ / 4100”
“ / 5000”
“4100”
“5000”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – 4000
in this exa mple
Wait
M /N
“ / _900”
“ / 1000”
“_900”
“1000”
E/T
Wait
E/T
M /N
Wait
M /N
M /N
E/T
E/T Wait
“ / _diS”“diS”
E/T
M /N
Wait
M /N
M /N
E/T Wait
Wait
Wait
Config 3
Normal
Wait
“ / 3900”“3900
E/T
M /N
Wait
M /N
E/T Wait
8 more options: 4200, 4300,
…..4900
28 more options: 1100, 1200,
…..3800
23
Config 3
“Arc”
Alar m re lay
configuration
“_nO”
“ / _nC”
“ / _nO”
“_nC”
“_nO”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – nO in
this example
Wait
M /N
“FrS”
Fan Relay
Setting
“2000”
“ / 2100”
“ / 5000”
“2100”
“5000”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – 2000
in this exa mple
Wait
M /N
“ / _600”
“ /2000
“_600”
“2000”
E/T
Wait
E/T
M /N
Wait
M /N
M /N
E/T
E/T Wait
“ /_diS”
“_di S”
E/T
M /N
Wait
M /N
M /N
E/T
Wait
Wait
Wait
“ /_700”“_700”
E/T
Wait
M /N
M /N
E/T Wa it
Config 4 Normal
Wait
Wait
38 more options: 2200, 2300,
…...4800, 4900
12 more options: 800,
900…….1800, 1900
24
Config 4
“Frd”
Fan relay delay
“__3”
“ / _5”
“ /_ 10”
“__5”
“__10”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – 3 in
this example
Wait
M /N
“ / _1”
“ / _3”
“__1”
“__3”
E/T
Wait
E/T
M /N
Wait
M /N
M /N
E/T
E/T W ait
“ / _0”
“__0”
E/T
M /N
Wait
M /N
M /N
E/T W ait
Wait
Wait
Config 5
Normal
Wait
25
Config 5
“Frr”
Fa n rel ay
runtime
“__0”
“ / _3”
“ / _5”
“__3”
“__5”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – 0 in
this example
Wait
M /N
“ /_ 15”
“ / _0”
“_15”
“__0”
E/T
Wait
E/T
M /N
Wait
M /N
M /N
E/T
E/T Wait
“ /_ 10”“_10”
E/T
M /N
Wait
M /N
M /N
E/T Wait
Wait
Wait
“FrL”
Fan relay la tch
“OFF ”
“ / _On ”
“ / OFF ”
“_On”
“_O FF”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – OFF in
this example
Wait
M /N
“tF S”
Trouble fault
setting
“OFF ”
“ / _On ”
“ / _OF F”
“_On”
“_O FF”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – OFF in
this example
Wait
M /N
Config 6
Wait
Wait
Wait
Normal
26
Config 6
“420”
Current loop
“_On”
“ / OFF ”
“ / _On
”
“_O FF
”
“_On”
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
Wait
E/T
M /N
M /N
E/T
E/T
Go to current setting – On in
this example
Wait
M /N
“End”
Normal
M /N
E/T
Wait
Config 1
Wait
27
5.4 Select Test Menu “tst”
tst
“bUZ”
Buz zer t est
“Art ”
Alar m relay test
“Frt”
Fa n rela y t est
“420”
Current loop test
Normal
M /N
E/T
M /N
E/T
M /N
Wait
E/T
M /N
Wait
E/T
Wait
Wait
“End”
E/T
“___/bUZ”
Buz zer t est
“___/Art”
Alar m relay test
“___/Frt”
Fa n rela y t est
“___/420”
Current loop test
Wait
M /N
M /N
E/T
120
M /N
E/T
60
M /N
E/T
10
M /N
E/T
10
“gSt”
Gas te st
E/T
M /N
Wait
“___/gSt”
Gas te st
M /N
180
E/T
28
5.5 CAL Menu * CD-12MC Only
CAL
“400”
Cal mode
(CD6MC only)
“End”
“400/___”
Waiting for gas
Gas OK within
90 secs?
“GR/CAL"
Gas reading
alt ernates wi th CAL
until stable (165 s)
Cal OK?
“GR/FAil” alternate
gas reading with
FAil
“GR /PAS” gas
reading alternating
with PAS
NO
YES
NO YES
E/T
E/T
E/T
M /N
M /N
Normal
E/T
29
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