25Instruction Manual
SECTION 7 - DP5000 SPECIFICATIONS
Power Requirements
115 VAC ±15%, 60 Hz
230 VAC ±15%, 50 Hz
Voltage input selectable via a selector switch located on the I/O PCB.
Inputs
Flow Switch, Remote ON / OFF, Spares.
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
Pulse Pump A and B, Alarm.
All low voltage outputs capable of switching 2 mA at + 24 VDC.
The pulse output frequency range will be 0-100 per minute.
The pulse output active low. The pulse width 100 ms in the active (low) state.
Output Type: Opto-Isolated NPN transistor open collector conguration.
Keypad
Nine key membrane keypad with tactile response.
Material: (The switches are multiplexed 3 x 3)
Actuation Force: Polyester with a hard coat nish
Travel: 2.6 N to 3.3 N
Termination Connector: 0.65 mm 6-way gold plated Berg clincher type 65801-035
Temperature Input
The temperature input interfaces to a platinum 1000 ohm RTD probe.
Probe: PT1000 (Platinum, 1000 Ω base resistance)
Circuit Accuracy: ± 0.9°F (± 0.5°C)
Temperature Display: 32°F to 212°F (0°C to100°C)
Temperature Resolution: ± 1.8°F (± 1°C)
Probe Input
Accuracy: ± 0.02 pH (500M Ω probe ambient cycle 32°F to 113°F (0°C to 45°C))
Resolution: 0.01 pH
Input pH Range: 0-14 pH
Input Impedance Differential: 1013 Ω
Input Impedance Common: 1016 Ω
ESD Protection: 700 V
Relays
Fuse protected.
Alarm Relays (2): Electromechanical
Solenoid Valve Relay (1): 115/230 VAC, 10 A/6 A
Current/Voltage Rating: 10A, 115 VAC or 6A, 230 VAC
Contact Type: Normally open and normally closed contacts (FORM C) Change
over relay
Pump ON/OFF Relay (2) (ON/OFF CONTROL): 115 V/230 VAC, 10 A/6 A (NO)
ON/OFF Relays are Fuse Protected (FORM C). Normally open relay
Fuse: 4 A, 250 VAC time delay (Anti-surge)
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