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Page  5

Relay 1

Trip 50

Use the <ROLL> key to scroll through the available options. The 

relay 1 alarm trip point may be set from 20 to 500 ppm in 10 

ppm increments. Press <SAVE> to save the setting.

<MENU> 

Press to advance to next menu item

6. ALARM TRIP 

POINT

Relay 1

Hyst 10

Relay 1

Del 2Min

Relay 1

Direct

Relay 1

Test OFF

Use the <ROLL> key to scroll through the available options. 

The relay 1 hysteresis may be set from 10 to 100 ppm in 5 

ppm increments. Press <SAVE> to save the setting. Note that 

the maximum value may be limited by the trip point value.

Use the <ROLL> key to scroll through the available options. 

The relay 1 delay may be set from 0 to 10 minutes in 1 minute 

increments. Press <SAVE> to save the setting.

Use the <ROLL> key to toggle the available options. Relay 1 

operation may be set to Direct or Reverse. Direct operation 

means the relay is normally not energized and will energize 

on an alarm condition (the NO/NC PCB destinations are 

correct). Reverse operation means the relay is normally 

energized and ill de-energize on an alarm condition (the NO/

NC PCB designations are reversed). Reverse operation can be 

used for "Fail Safe" operation as the relay will change state on 

power loss. Press <SAVE> to save the setting. 

Use the <ROLL> key to toggle relay 1 ON or OFF.

<MENU> 

Press to advance to next menu item

<MENU> 

Press to advance to next menu item

<MENU> 

Press to advance to next menu item

7. HYSTERESIS

8. DELAY

9. DIRECT

10. TEST

Only if 

Relay 1 

installed

<MENU> 

Press to advance to next menu item

Only if 

Relay 2 

installed

Relay 2

Hyst 20

Relay 2

Del 2Min

Use the <ROLL> key to scroll through the available options. 

The relay 2 hysteresis may be set from 10 to 100 ppm in 5 ppm 

increments. Press <SAVE> to save the setting. Note that the 

maximum value may be limited by the trip point value.

Use the <ROLL> key to scroll through the available options. 

The relay 2 delay may be set from 0 to 10 minutes in 1 minute 

increments. Press <SAVE> to save the setting.

<MENU> 

Press to advance to next menu item

<MENU> 

Press to advance to next menu item

12. HYSTERESIS

13. DELAY

Relay 2

Trip 150

Use the <ROLL> key to scroll through the available options. 

The relay 2 alarm trip point may be set from 20 to 500 ppm in 

10 ppm increments. Press <SAVE> to save the setting.

<MENU> 

Press to advance to next menu item

11. ALARM TRIP 

POINT

IN-GE-CMD5B5XXX-01-02     03/19

Copyright © Greystone Energy Systems, Inc.   All Rights Reserved    Phone:  +1 506 853 3057  Web: www.greystoneenergy.com

Содержание CMD5B5 Series

Страница 1: ...ve feet from corners and other items that may cause disturbances in the air flow Avoid areas with vibrations or rapid temperature changes The duct CO detector principal of operation is based on the Venturi effect of the probe that extends into the HVAC duct Air flowing through the duct is forced into the vent holes on one side of the probe into the enclosure over the CO sensor and then is drawn ba...

Страница 2: ...power is applied The current signal has a maximum load that it will drive and the voltage output has a minimum load Follow the ratings in the Specification section or inaccurate readings may result The power must be disconnected to change from VOLT to mA The analog output CO signal is typically connected directly to the Building Automation System BAS and used as a control parameter or for logging ...

Страница 3: ...eset to Normal Mode when the CO level drops below the trip level hysteresis value In order to reset the relay alarms to Normal Mode the user must also press theTEST switch on the front cover or activate the remote TEST input If the CO level is below the alarm level AND the TEST switch is pressed then the relay alarms will return to the Normal Mode The Manual Reset also applies to the buzzer alarm ...

Страница 4: ... device network address the installer MUST change the settings before operation Any changes made are saved in non volatile memory and are restored in case of a power loss Only the menu items relevant to the device model will be shown The menu can be accessed at any time after the warm up mode and if there is 5 minutes of inactivity the menu will close and normal operation will continue Note that t...

Страница 5: ...used for Fail Safe operation as the relay will change state on power loss Press SAVE to save the setting Use the ROLL key to toggle relay 1 ON or OFF MENU Press to advance to next menu item MENU Press to advance to next menu item MENU Press to advance to next menu item 7 HYSTERESIS 8 DELAY 9 DIRECT 10 TEST Only if Relay 1 installed MENU Press to advance to next menu item Only if Relay 2 installed ...

Страница 6: ...when the TEST switch is pressed Use the ROLL key to enable disable or reset When disabled the device will not sound the buzzer or provide LCD and status LED indication when the sensor life is exceeded When enabled the fault alarm will activate to indicate the sensor life is exceeded Press SAVE to save the setting If it is set to reset and SAVE is pressed then the fault condition is cleared the lif...

Страница 7: ...he setting to either CO Value or Status When set to CO value the actual ppm value of the CO reading will be displayed on the LCD When set to Status the ppm value will not be displayed only the device operating status Press SAVE to save the setting Use the ROLL key to enable or disable the LCD backlight When enabled the backlight is always on and when disabled it never lights Press SAVE to save the...

Страница 8: ... on the cover as before The sensor must be continuously powered for at least 1 2 hour prior to calibration Calibrate the sensor first in clean air with no CO gas present Simply adjust the ZERO pot on the sensor board until 4 mA or 0 Vdc output is obtained and the LCD displays 0 ppm Note that the 0 Filter menu item should be disabled to set the 0 ppm The ZERO and SPAN pots are located on the edge o...

Страница 9: ...1 minute increments OPTIONAL RELAY Outputs Form C contacts NO and NC 5 Amps 250 Vac 5 Amps 30 Vdc Relay 1 Trip Point Programmable 20 to 500 ppm in 10 ppm increments Relay 2 Trip Point Programmable 20 to 500 ppm in 10 ppm increments Relay Hysteresis Programmable 10 to 100 ppm in 5 ppm increments Relay Delay Programmable 0 to 10 minutes in 1 minute increments GENERAL Measurement Electrochemical Samp...

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