Remote-Operation; Maintenance - Pecon CTI-Controller 3700 Handbuch

If the CO nominal value is not reached then the supply of gas must be increased (setting the
•
2
"CO reducing valve" to lower values).
2

Remote-Operation

Press the "remote" button
remote control mode. In this mode the device accepts no commands from the buttons at
the front panel. The device is now exclusively controlled by the PC.
After transition into the remote operation mode the device continues to work with the last parameters
set. To deactivate the remote control mode press "remote" again
device can now be controlled again by the font panel buttons.
Connection to the PC and installation of the software
• The CTI-Controller 3700 digital is connected to the PC using the supplied RS-232 interface cable.
If the PC does not have a serial RS-232 interface then this can be retrofitted with PCI-cards or USB-
•
adapters. Please contact your system administrator or computer supplier for details.
• Download the Software „IRC – Incubation Remote Control" from the support section of the
PeCon homepage at http://support.pecon.biz and install it.

Maintenance

Setting the CO zero value
2
• Caution:
The CO zero value is set to the normal value for air of approx. 0.03 %. Considerably higher
2
values may exist in closed rooms and therefore fluctuations may occur. A deviation of ±0.1 %
from the zero value is normal. If a window is opened and the display still shows a greater
deviation from the zero value, then the zero value should be adjusted by the potentiometer
"sensor calibration" at the back of the device.
If the CO value shows permanently "Lo" (low = -0.2 % CO
•
2
device is switched on, then the zero value must be adjusted anyway. To adjust slowly turn the
potentiometer until the display shows 0.0.
The exact zero value lies somewhere between the transition point from –0.0 to +0.0.
For this reason turn the knob on the potentiometer very slowly.
If the display shows "Hi" or "Lo" the device switches into a safety mode and does not react to
•
commands from the front buttons. In this case adjust the zero value with the potentiometer
"sensor calibration", the device is then again ready for operation.
If the zero value cannot be set when "HI" is displayed the lamp in the sensor must be changed
•
(see section lamp exchange).
• A temporary display of "HI" during operation (> 10.2 % CO
overshoot and should be ignored.
05 – 2009
Manual: CTI-Controller 3700
(red LED at the button lights up) to switch the device into the
PC
remote
RS 232
air heating
temperature
sensor
115 V: 1.25 AT (L)
230 V: 0.63 AT (L)
(red LED
CO input output input
ventilation out
2
max 2 bar for external for internal
feeding feeding
sensor
calibration
tempcontrol
37-2
ventilation in
CE
) or "HI" (high = 10.2 % CO
2
) may be triggered by a CO
2
11
at button goes off). The
) when the
2
www.pecon.biz
2