Connection
Terminal
Function
Electrical Data
Remark
G+
G0
Power (+)
Ground (-)
24 vac/dc + (+-20%), 2w
24 vac/dc -
System Voltage Ref.
M
Vo
Io
Signal Ground
Voltage output
Current output
0 – 10V
4 – 20mA
Connected to GND
0 – 20 vol.% CO2
0 – 20 vol.% CO2
Cal
Calibration
Active when S/C to M
Push on function
Table 1. Electrical terminal connections for
CH-CO2
WARRANTY AND LIMITATION OF LIABILITY
1.
Telasia warrants that for a period of twelve
(12) months following receipt by Buyer the
Product
supplied by Telasia to the Buyer will be, under normal use and care, free from defects
in workmanship or material and to be in material conformity with Telasia's specifications.
Units returned to Telasia for warranty repairs shall be shipped to Telasia, at Buyer’s expense,
according to Telasia's instruction. Telasia shall replace or repair such units and shall ship them
to Buyer’s designated return destination freight pre-paid within ninety (90) days of the receipt
of product.
2.
Warranty Limitations. This warranty does not extend to any unit that has been subjected to
mis-use, neglect or accident; that has been damaged by causes external to the unit; that has
been used in violation of Telasia's instructions; that has been affixed to any non-standard
Accessory attachment; or that has been modified, disassembled, or reassembled by anyone
other than Telasia.
3.
The retailer is not responsible for any consequential loss or damages, which may occur by
reason of purchase and use of this product.
The warranty is, in any event, strictly limited to
the replacement/repair of the product.
This product is in accordance with the EMC Directive 89/336/EEC and
the Low Voltage Directive 73/23/EEC including amendments by the
CE-marking Directive 93/68/EEC
.
The product fulfils the following demands:
EN50081-1, EN55011(B)
EN50082-2, EN61000-4-2,-3,-4,-5, Level3
Manual for Installation
V1.0
CHUNDE TECHNOLOGY
CH-CO2
High Concentration CO
2
transmitter
CH-CO2
General
The
CH-CO2
(sensor for wall mounting) and
CH-CO2-IP45
(for industrial wall mount) are
designed to measure carbon dioxide (CO
2
) concentration up to 30 vol.%.
The unit is designed for connecting to controllers, Direct Digital Control (DDC) or other system
with 0-10V or 4-20mA signal inputs. The two parallel signal outputs Vo (0-10V) and Io (4-20mA)
give linear signals corresponding to the measuring range of 0 – 20 vol.% carbon dioxide (0-30%
option on request). An additional fresh-air calibration (Cal) command input is added to facilitate the
calibration in the field.
