LMI Liquitron DC4500 Series, Инструкция по эксплуатации

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9.0 Product Specifications
Power Power Power Power Power
115 VAC +/-15%, 50/60 Hz
Requirements Requirements
Requirements Requirements
Requirements
230 VAC +/-15%, 50/60 Hz
Voltage input selectable via a selector switch located on the I/O PCB.
Fuse: 4A 250 VAC Time Delay
Inputs Inputs
Inputs Inputs
Inputs
Flow Switch. All low voltage inputs active low,
i.e. the active state is when the switch is closed. The switch must be capable of
switching 2 mA at +/-15 VDC.
Outputs Outputs
Outputs Outputs
Outputs
Pulse Pump A and B, Auxiliary, Alarm.
All low voltage outputs capable of switching 2 mA at = 24 VDC. The pulse output
frequency range is 0-100 SPM. The pulse output is active low. The pulse width is
100 milliseconds in the active low state.
The output type is an opto-isolated NPN transistor open collector configuration.
4-20 mA: 600 ohms maximum
Keypad Keypad Keypad Keypad Keypad
Three key membrane keypad with tactile response.
Material: Polyester with a hard coat finish.
Actuation Force: 2.6N to 3.3N.
Temperature Input Temperature Input Temperature Input Temperature Input Temperature Input
Thermistor resistance 10k Ohms at 77° F [25° C]
Circuit Accuracy: +/- 33° F [+/-0.5° C]
Temperature Display: 32° F to 212° F [0° C to 100° C]
Temperature resolution: +/- 1.8° F [+/- 1° C]
Probe Input Probe Input Probe Input Probe Input Probe Input
Cell constant of 1.5
ESD Protection: 700 Volts
Three (3) sample readings / second : display updated every second
Relays Relays Relays Relays Relays
Fuse protected electromechanical.
Control Relay (1): 250 VAC, 10amp contact relay
Feed Relay (1): 250 VAC, 10amp contact relay
Biocide Relay (2): 250 VAC, 10amp contact relay
Contact type: Normally open and normally closed contacts (FORM C) Change
over relay.
LCD Display LCD Display LCD Display LCD Display LCD Display 16-Digit Liquid Crystal Display [LCD] with green backlighting
Operating Operating
Operating Operating
Operating
Temperature
Temperature
Temperature Temperature Temperature 32° F to 122° F [0° C to 50° C]
Memory Backup Memory Backup Memory Backup Memory Backup Memory Backup
EEPROM. Data retention of 10 years minimum.
Environmental Environmental
Environmental Environmental Environmental Printed pc boards conformally coated.
Enclosure: IEC IP65, NEMA 4X - Door closed. IEC IP NEMA - 12X Door open
Mechanical Mechanical
Mechanical Mechanical
Mechanical
Two (2) pc boards [three (3) if communication option installed].
Control CPU board: microcontroller and display - low voltage.
Terminal power I/O board: transformer, fuses, terminal blocks, relays.
Option board: 4-20 mA output - low voltage.
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