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Electrical Connection
Electrical Basic System
The basic electrical system mainly includes the following
components:
• Measurement interface drive panel (MCB)
• Main control panel (SBC)
• Power supply wiring
Measurement Interface Drive Panel
The measurement interface drive panel is installed inside the
u pp e r c a bi n e t . I t m a i n l y p e r f o rm s t h e dr i v i n g a n d
communication functions of various electronic components
required for ammonia nitrogen applications. It is connected to
the main control panel through J22 and transmits the status
of each component to the main panel.
In addition, the measurement interface drive panel also
includes a lot of external interfaces, including (2) 0/4 - 20 mA
output interfaces, (2) digital input interfaces, (2) relay control
interfaces and (1) 0-5 V analog input interface, and
(1) 4 - 20 mA analog input. Refer to Figure 9 for the main
interfaces.
Figure 9. Diagram of Main Interface of
Measurement Interface Drive Panel
Description of electric ball valve setting:
The electric ball valve is a stainless steel mini-type electric
two-way ball valve with double internal threads DN15 and
24 V and is installed at the water inlet of the flow cell.
For the installation of the electric ball valve, refer to Figure 10.
Orion 8010cX Ammonia Analyzer
Figure 10. Diagram of Electric Ball Valve
Installation
1.SW is closed and the valve is open. After arriving in place,
the internal power is automatically turned off and kept in
fully open (straight through) state;
2.SW is open and the valve is closed. After arriving in place,
the internal power is automatically turned off and kept in
fully open (straight through) state;
The cable marked "24 V" and "GND" in the above figure gets
power from J2 on the instrument internal measurement
interface drive panel. The cable marked "COM" and "NO" is
connected to relay #2 (COM and NO of J4). Externally
connected water pump is controlled via relay #1 (J5), as
shown in Figure 9.
For the actions settings before running
(analytical procedure >> pre-running), refer to Table 3:
Table 3. Actions Settings Before Running
No.
Part
1
Relay 1 (pump)
2
Relay 2 (ball valve)
3
Relay 2 (ball valve)
4
Relay 1 (pump)
Adjust the manually-operated valve at the water inlet to
control the inlet flow at a flow rate that just fills the flow cell up
in 1 minute. Start the automatic measurement of the
instrument.
Time
Action
(min)
On (relay closed,
0
pump On)
On (relay closed,
0
valve open)
Off (relay open, valve
2
closed)
Off (relay open, pump
4
Off)
Installation |
15
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