PP Systems CIRAS-2 User Manual

Preparations for Use –
CIRAS-2 Operator's Manual Version 2.04
- 19 -
the system from mains power will prevent the battery packs from draining during this exercise. The mains
power supply does not charge the CIRAS-2 battery packs.
Connect the mains power supply (supplied by PP Systems) from the electrical outlet in your lab to the EXT
PWR socket located on the electrical/gas connection panel. The power supply is fitted with a special 4-pin
plug that is designed to fit only into the EXT PWR socket. Proper care must be taken not to inadvertently
force the plug into any other socket, which will cause damage to CIRAS-2‟s electronics.
Step 3. Make Leaf Cuvette electrical and gas connections
Locate the leaf cuvette electrical socket labelled “PLC” on the electrical/gas connection panel. Plug the
18-pin cuvette electrical connector into this socket, ensuring that the red dot on the connector is in the 12
o‟clock position (top, middle). Push in until the connector latches.
To make the cuvette gas connections locate the 3 gas entries AN IN, REF IN, AIR OUT at the top of the
panel:
CIRAS-2 gas/electrical connection panel – detailed view
Note that it does not matter which leg of the tubing marked “R” is connected to the “REF IN” or “AIR OUT”
gas entries. Push each connector firmly onto the appropriate gas entry until you hear it lock in place.
If your system includes the integrated Chlorophyll Fluorescence Module (CFM), locate the CFM
On/Off switch (beneath the UI) and set to the Off position. You will find detailed descriptions of
simultaneous chlorophyll fluorescence/gas exchange functions in the CFM section on page 96.
Connect the leaf
cuvette tubing labelled
“A” to the gas entry port
“AN IN”.
Air supply for analyzer
– alternatively, source
of ambient air when no
CO
2
control desired.
“REF OUT” - reserved
for closed system
applications.
Power (On/Off)
Switch.
Connect one leg of the leaf
cuvette tubing labelled “R” to
the “REF IN” and the other
leg to the “AIR OUT” gas
port.
Connect the leaf cuvette
electrical plug to the “PLC”
socket. Note the orientation
of the red dot. It should be
at the top and in the middle.
Push firmly until it latches.
RS232 socket. When
operating the CIRAS-2
remotely from a computer.
Connect CIRAS-2 Power
Supply to External Power
socket.

PP Systems CIRAS-2 Specifications

General

Brand	PP Systems
Model	CIRAS-2
Category	Measuring Instruments
Language	English