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CO Range

0-300ppm

Press the <ROLL> key to scroll through the available options. The CO sensing 

range and output scale can be changed to 0-100ppm, 0-150ppm, 0-300ppm, 

0-400ppm, or 0-500ppm Press the <SAVE> key to save any change.

<MENU> 

Press to advance to next menu item

<MENU> 

Press to enter the User Menu

1. CARBON MONOXIDE RANGE

Buzzer

Enable

Use the <ROLL> key to enable or disable the buzzer alarm. When disabled, the 

buzzer will not sound if the buzzer trip point is exceeded. The buzzer will still 

beep on startup and will still beep for a fault alarm (if enabled) and ReCal alarm 

(if enabled). Press <SAVE> key to save the setting.

<MENU> 

Press to advance to next menu item

2. BUZZER ALARM

OPERATION - RE-CAL MODE

The Re-Cal mode function is enabled by default, it must be disabled via the menu if it is not required. 

The Re-Cal function will monitor the device and indicate when the CO sensor should be re-calibrated. 

If the device determines that the sensor requires re-calibration it will enter Re-Cal mode. This will cause 

the Status LED to blink red and the buzzer to beep once every 10 minutes. The LCD will periodically show 

"ReCal Required". If enabled, and the device is in Re-Cal mode, pressing the TEST switch will "silence" the 

buzzer due to the ReCal alarm only. Buzzer silence due to the ReCal alarm will hold until the ReCal condition 

is reset via the menu. The buzzer may still activate due to a CO setpoint alarm if enabled.

OPERATION - USER MENU

The device has several parameters that can be configured locally via the User menu using the keypad and 

LCD. All parameters default to typical values but the installer may want to change some values. In some 

cases, such as the 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 the TEST switch has no affect when the User menu is in use.

The menu has several items as shown below. To enter the menu, press and release the <MENU> key. This 

will enter the User menu step 1, pressing the <MENU> key a second time advances to step 2. Each press 

of the <MENU> key advances the menu item. No values are saved or changed by using the <MENU> key. 

The <ROLL> key is used to make changes to program variables by scrolling through the available options. 

Holding the <ROLL> key pressed will scroll through some options at a faster rate. When a value is changed, 

use the <SAVE> key to save it to memory and advance to the next menu item. The default values are 

shown in each step below.

Buzzer

Del 5Min

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

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

increments. Press <SAVE> to save the setting. The factory 

default is 5 minutes. 

<MENU> 

Press to advance to next menu item

Buzzer

Trip 150

Buzzer

Test OFF

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

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

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

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

<MENU> 

Press to advance to next menu item

4. BUZZER DELAY

3. BUZZER TRIP

5. BUZZER TEST

Only if 

Buzzer 

enabled

<MENU> 

Press to advance to next menu item

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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