SRC - C1
Page 1
Subject to alteration
SRC- C1
Indoor CO2 Transmitter
Features
Indoor CO2 measurement
Indication with three color led
Minimum and maximum value memory
0…10V, 0…20mA or 2…10V, 4…20mA measuring signals
selectable with jumpers
Optional alternative signal ranges programmable
May be used as simple P-controller
Selectable averaging signal
Optional external display (OPA-S)
Status LED
Applications
Indoor CO2 measurement.
Recording of minimum and maximum limits for critical
environments
Direct control of extraction fan.
CO2 Transmitter
The CO2 concentration is measured through non-dispersive infrared (NDIR) waveguide technology with ABC automatic
background calibration algorithm. The applied measuring technology guarantees excellent reliability and long term
stability. The microprocessor samples the CO2 once per second. It calculates an averaging signal over a preset number
of seconds and generates the output signal.
The output signal range and type may be customized by jumpers and if required by a programming tool. Standard
signal ranges are 0-10VDC, 2-10VDC, 4-20mA and 0-20mA. These ranges can be set by jumpers. Other ranges can be
set by using the external display and programming module. (OPA-S)
Minimum and Maximum Values:
Using a display & programming accessory, the user has the option to read out and reset minimum and maximum
values. The minimum and maximum values may as well be used as output signals. The minimum and maximum
values are saved into the EEPROM and are available after a power interruption.
Indication of air quality
:
A three color LED is used to indicate air quality: Green light for low CO2 concentration, orange light for medium and
red light for high concentration. The levels for low-medium-high may be programmed.
Default settings are 0 ppm< low < 800 ppm< medium < 1500 ppm high.
Use as P-controller
Set a minimum concentration when the extract fan should start to run at its minimum speed. For example 700 ppm.
Set this as the minimum value in IP03 parameter. Then define the value when the fan should run at full speed, for
example 1500 ppm and set this value in IP04. Your transmitter has now been converted into an air quality P-controller!
The fan will start to run if the CO2 concentration is higher than 700 ppm. It increases to its maximum when CO2
concentration reaches 1500 ppm. y
Ordering
Item Name
Item Code
Description/Option
SRC-C1
40-30 0062
CO2 transmitter
Accessories
Item Name
Item Code
Description/Option
OPA-S
40-50 0006
External display module.
For the correct display of values V1.4 and later is required
Maintenance
The SRC-C1 CO2 transmitter is maintenance free in normal environments thanks to the built-in self-correcting ABC
algorithm. Discuss your application with Vector Controls GmbH in order to get advice for a proper calibration strategy.
When checking the sensor accuracy, PLEASE NOTE that the sensor accuracy is defined at continuous operation (at
least 3 weeks after installation)!
Error messages
visible on OPA - S
Following error condition may be displayed:
Err1:
Communication time out between terminal unit and transmitter. Verify wiring, connections and state of sensor.
Err3:
The sensing element is damaged or became disconnected.
Insight Control
Ph 1300 665 831
www.insightcontrol.net.au
