CAP Part Per Million PPM-1c Manual

The PPM-1c allows users to upgrade C.A.P.'s line of CO
CO with PPM / "Part Per Million" accuracy. The PPM-1c is capable of measuring CO
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levels from 0-5000. On-board adjustable set point and calibration makes it easy to use.
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The PPM-1c is an extremely accurate Part-Per-Million (PPM) CO
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It can measure CO from 0-5000 PPM +/- 100PPM.
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It has an easy to read 4-digit LCD display.
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It has an external power supply and a Quick Disconnect or "QD", which is connected
to a CO -2, CO -4 Environmental controller or the CGC-1 Complete Greenhouse
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Controller.
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Once the PPM-1c is connected to either the CO
controller will receive information from the PPM-1c and use it to control the CO
levels with extreme precision.
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The PPM-1c works in harmony with the Inject and Sample timers on the CO
CO -4 or the CGC-1.
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The PPM-1c also has a visual Status indicator, which verifies the unit has completed
the "Initial warm-up" stage and is functioning properly.

INSTALLATION

1) The base-plate must be mounted to a wall using the (4) screws provided with the unit. Find a location near a 120-volt
receptacle for power. The PPM-1c will need to have a fair amount of airflow around the enclosure and be at "plant-level"
to be most accurate.
2) Once the base-plate is mounted the sensor can be snapped onto the base-plate by hooking the two top tabs and then
pivoting the unit down until it snaps into place.
*Note: To release the tabs, press in on the two snap tabs located on the bottom of the unit near each edge.
3) The PPM-1c comes pre-wired with a plug-in power supply. The power supply must be connected to a constant source of
120-vac power. Once powered up, the PPM-1c will enter a "Initial warm-up" and calibration mode. Slowly over a 10-20
minute period, the CO

CONNECTING TO THE ENVIRONMENTAL CONTROLLER

The other cable coming from the PPM-1c is the Quick disconnect or "QD". The QD is a standard IEC cable which replaces
the jumper plugged into the connector on the left side of the CO
is connected, the controller will automatically begin controlling CO

MAKING ADJUSTMENTS

The PPM-1c has an adjustable setpoint from 0-5000 PPM. Once the desired setpoint is entered, the PPM-1c will disable the
"CO Level Low" function of the environmental controller effectively shutting OFF the CO
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setpoint and re-calibrating the unit is easy using the front mounted push buttons. There are four buttons.
a) clear: used with the mode button to enter the programming mode.
b) mode: used with the clear button to enter the programming mode and to scroll through the different modes.
c) up/down: The arrow up / down button is used to change the program set points.
d) enter: accept the changes and stores the settings.
To change the set point:
1) Press and hold the (clear) and (mode) buttons for 5 seconds.
2) Now press the (mode) button nine times to display the current set point. (RELAY is displayed)
3) Use the (up) and (down) arrow buttons to change the set point.
4) Press (enter) to accept the change.
5) Press (clear) to return the unit to RUN mode. (CO

CALIBRATION

The PPM-1c is factory calibrated. The sensor onboard the PPM-1c is capable of remaining in calibration for a minimum of
three years. Extreme shock during shipping and other factors may affect the calibration. By bringing the unit outdoors, you
can do a quick check of the calibration. The reading outdoors should be between 250-550 PPM. If the display does not read
250-550 PPM, a simple calibration can be performed.
PPM-1c / Part Per Million CO
level should stabilize between 250-550 PPM outdoors and as much as 1500 PPM indoors.
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Monitor
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& Environmental controllers to control
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sensor.
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-2, CO -4 or the CGC-1, the
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-2 / CO -4 and the bottom of the CGC-1. Once the PPM-1c
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with Part-Per-Million accuracy.
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____PPM is displayed)
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PPM
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-2 ,
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outlet. Adjusting the CO
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