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10
• Glass electrode and Metal antimony electrode can be chosen and be used under different industrial
situation and HF measurement situation. Please refer to procedures of Item 5.8.
• During calibrating and setting, hold function freezes output current (0/4 20ma) and releases control
relays.
• LED indicators signal control activities to monitor controller status from a distance.
• Ultraviolet rays proofing, LCE of blue back light (LCD=liquid crystal display)
•
RS-485 output can set tandem transmitting rate and ID NO. by itself. Maximum 100 instruments can
be connected with computer to provide convenience management for terminating machine.
2.2 MEASUREMENT AND CONTROL SYSTEM
Typical measurement system includes:
•
pH/ORP
on-line transmitter
•
United or separated temperature sensing instrument
Pt1000
of
pH/ORP
compound electrode.
•
Suitable
pH/ORP
measurement electric cable.
•
Immersion, flow or processing parts with or without grounding electrode.
•
Terminating controlling parts, eg. Pump or value.
•
0/4
~
20mA
can connect with recording instrument.
•
RS485
can be used as multi-instrument communication.
•
RL3
relay can be used as many controller and warning.
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PHCN-962
Содержание PHCN-962
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