14
Specifications
2.2 Hardware description
The instrument hardware is made of one main board, and one measurement board for the
measurement channel (= the sensor).
The main board includes the controls for power, display, the touch screen, the barometric
sensor, the alarms, and communication ports. The measurement board performs measurements
and executes commands from the main board. It holds the "Analog output" and "Relays" that
send information to external systems.
A hardware watchdog is activated at program start up, to check that the system is not frozen
(i.e. infinite loop, system crash, etc.). If the watchdog is not refreshed by the software every
minute, the measurement display, the relays and the analog output are frozen up to 2 minutes.
Then the reset shuts down the instrument for 10 seconds and the start-up procedure is
performed. At the same time all the hardware (sensor, measurement board) are reset.
2.3 Model identification system
The analyzer identification number and the instrument serial number are located on the label on
the back panel, and can be found on order confirmation and invoice papers.
System alarm relay on the main
board
One "instrument system alarm" relay per instrument
1A-30 VAC or 0.5A-50 VDC on a resistance load
Normally closed [NC] (NO relay also available) when instrument is turned on. Opens when
a system alarm is detected, and when it does not receive any signal.
WARNING
Potential Electrocution Hazard. Connect only safety low voltage < 33 VAC RMS.
COMMUNICATION
Options RS-485 or PROFIBUS-DP (optional); USB host ; Ethernet 10/100 Base-T
GENERAL
Thermal cut off Prevents ageing of sensors when exposed to high temperatures
SIZE AND WEIGHT
Wall and pipe mount
(H x D x W)
236.5 x 160 x 250 mm - weight 4.25 kg
9.31 x 6.30 x 9.84 in. - weight 8.82 lbs
Panel mount: Face (housing)
(H x D x W)
156 (123) x 250 x 220 (214) mm - weight 3.35 kg
6.14 (4.84) x 9.84 x 8.86 (8.43) in. - weight 6.62 lbs
A Oxygen EC sensor
C Ozone EC sensor
D Carbon dioxide TC sensor
W Wall
P Panel
1 100-240 VAC
2 10-30 VDC
C 0/4-20 mA
V 0-5 V
0 RS-485
1 PROFIBUS-DP / RS-485
0 Standard
K Korean language
410/
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