Hach-Lange ORBISPHERE Model 51x User Manual - Manual (Page 17)

15
Specifications
2.2 Hardware description
The instrument hardware is made of one main board, up to 3 measurement boards - one for
each measurement channel (= one per sensor), a power supply and a battery pack as options.
The main board includes the controls for power, display, the touch screen, the barometric
sensor, the alarms, and communication ports. The measurement board(s) performs
measurements and executes commands from the main board. It holds the "Analog outputs" and
"Relays" that send information to external systems, and "Digital Inputs" that receive information
from external systems such as a “Hold” input.
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 outputs are frozen for 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.
The different models available are described in the following two matrices. Depending on the
channel configuration, the first three digits of the model number will be either 510, 511 or 512 as
illustrated below.
510 model number matrix
5 1 0 A A A Oxygen EC sensor
B B B Hydrogen EC sensor
C C C Ozone EC sensor
D D D Carbon dioxide TC sensor (max. 2 channels)
Channe
l 1
Channe
l 2
Channe
l 3
W Wall
P Panel
T Portable
1 100-240 VAC (for W, P and T)
2 10-30 VDC (for W and P)
3 100-240 VAC & battery (for T only)
C 0/4-20 mA
V 0-5 V
0 RS-485
1 PROFIBUS-DP / RS-485
P External pressure
0 None
0 Standard
K Korean language
5 1 0 / / 0 0