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Totalizer Control Unit

Features:

  • DC Analog Current / Voltage Input
  • Facility to View & Store Min/Max Flow Rate Values
  • 2 Independent Programmable High/Low Flow Rate Alarms with Relay Outputs
  •  8 Digit Total Flow Indication with Automatic Roll-over & Over-flow Counts
  • Timer for Recording the Total Flow Time (HH:MM:SS)
  •  24 VDC @ 30 mA Transmitter Excitation Supply Voltage
  • RS485 Port for MODBUS Over Serial Communication Max. Distance

Display

Digital Readout Flow Rate : 5 digits, 0.39″ Bright Red LED, 7 Segment
Total Flow: 16 Characters X 2 Rows Backlight LCD
Status Indicators (6 Red LEDs) Flow Rate: Alarm-1, Alarm-2, Square-Root Enable
Flow: Alarm-1, Alarm-2, Over-flow

Keys

Туре 8 Tactile Switches
Functions Total Flow RST, Alarm ACK, OPR Page Entry, Display Scroll PAGE, DOWN, UP, ENTER

Sensor Input

Type (User Programmable) 0-20 mA, 4-20 mA 0-50 mV, 0-200 mV, 0 -1.25 V, 0-5 V, 0-10 V, 1-5V
Accuracy ± 0.25% of reading, ± 1 LSD
Display Range Flow Rate : 0 to 30000 Counts Total Flow: 0 to 99999999 Counts [with Upto 125 Over-flow Counts] 1, 0.1, 0.01, 0.001
Display Resolution (User Programmable) (Applicable for Both Flow Rate & Total Flow)
User Linearization Upto 32 (X, Y) Co-ordinates
Measuring Rate Flow Rate : 5 Samples per Second (sampling time 200mS) Toal Flow: 1 Second
Flow Rate Time Base (Flow per Unit Time) User Settable: Seconds, Minutes, Hours
Zero Offset (Flow Rate) User Adjustable : -19999 to 30000 Counts
Signal Conditioning L-C Analog Filter with Programmable Digital Low-Pass Filter

Alarms

Flow Rate Total Flow
Numbers 2, Independent 2, Independent
Programmable Parameters Outputs (Optional) Type: Process Low, Process High Logic: Normal, Reverse Hyst 1 to 30000 Counts Inhibit No, Yes Latch: No, Yes 2 X Relay/SSR Drive Select: Enable, Disable Setpoint: 1 to 99999999 Counts Over-run: 0 to 125 Counts Logic: Normal, Reverse Time: 0 to 125 Seconds 2 X Relay/SSR Drive

Retransmission(Flow Rate):

Signal Type DC Volts (0-5/10 V) or DC Current (0/4-20 mA)
PV Range User Settable through ‘Range Low’ and DC Linear ‘Range High’

Output:

Relay SSR Drive Contact Type: Potential-free Change-over Contacts Contact Rating: 5A Resistive @ 120/240 VAC Contact Life: > 5,00,000 Operations at Rated Voltage / Current > 4.2 VDC into 1KOhm Minimum
DC Linear Voltage: 0-5 V, 0-10 V (into 1KOhm Minimum) Current: 0-20 mA, 4-20 mA (into 500 Ohm Maximum)

Serial Communication

Port RS485, 2-wire, Half Duplex, Start-Stop Synchronized
Protocol Modbus RTU
Baud Rate Settable: 4800, 9600, 19200, 38400, 57600
Parity Settable: None, Even, Odd
Max. Units per Loop 31
Max.Distance 1200 Metres

Power Supply

Type Switch Mode (SMPS)
Line Voltage Standard: 85-264 VAC, 50/60Hz Optional: 18-36 VDC
 Consumption 5VA Max