N.R. Enterprises Weigh Feeder Controller D2 Series

Salient Features: • Full Software Calibration • Weatherproof housing • User selectable units for flow rate (tph or

kg/s) • User selectable units for total flow (kg or t) • Provision for High Weight, Low Flow & Out of

Range Alarms • Provision for 4-20 mA or 0–5/10 VDC output,

proportional to flow rate • Provision for Remote Display and/or Control

The D2 Weigh Feeder Controller is a compact and rugged instrument specifically designed to operate under tough operating conditions normally occurred in conveyor belt installations. It is very simple to use, and is very user friendly. It has many user selectable options, so that it can be used for any application, for any capacity, simply by selecting the desired units and full scales. The alarms can also be set by user at desired values, which activate a relay, whose contacts can be used for further annunciator or motor control actions. The most important feature of this weigh feeder controller is that this set of 2 compact panels (Belt Weigher Indicator & Motor Control Panel) display the flow rate, totalized flow and the set flow rate, as well as control the flow rate locally. Of course, if required, the flow control panel can also be fixed at a remote location (say a control room). Also, in case of any fault in the belt weigher indicator, the same can be disconnected from the motor control panel, while still keeping the conveyor operational in manual mode! ORDERING CODE:

D 2 / X X X / X X 0

Housing type No. of load cells Signal Outputs

Operating Voltage Control Outputs Housing type - W for Wall mounting housing (MS) (default) S for Wall mounting housing (SS) No. of Load Cells - 1 for 2 load cells of 350 Ω (default) 2 for up to 8 load cells of 350 Ω Operating Voltage - 1 for only 110 VAC operation

2 for only 230 VAC operation (default) Control Outputs - 0 for No control output (default) 4 for Alarm Condition Relay Outputs Signal Outputs - 0 for No signal output (default) 4 for 0/4-20 mA current output or 0-5/10 VDC voltage output Note: Some combinations of above options may not be available / possible.

N.R. Enterprises Weigh Feeder Controller D2 Series

GENERAL TECHNICAL SPECIFICATIONS: Load cell excitation ± 5 VDC Load cell drive capacity 2 nos. 350 Ω load cells (Optional up to 8 nos.) Load cell connection 4 wire or 6 wire Input signal range 0 to 30 mV Sampling rate 1 per second Internal resolution 20,000 counts Display resolution 1,000 to 5,000 counts Encoder excitation + 5 VDC Encoder Input + 5 VDC TTL pulse input from optical encoder Accuracy ± 2% or better (depending on installation) Calibration Full digital software calibration through keyboard Display 5 digit 7 segment 13mm height LED for Flow Rate,

6 digit 7 segment 8 mm height LED for Total Weight 4 digit 7 segment 8 mm height LED for Flow Settings 3 digit 7 segment 8 mm height LED for Motor Speed

Indications Flow Rate, Total Weight, Net Weight, Encoder Speed, Set Flow Rate (as % of FS), Motor Speed (as a function of Supply Frequency in Hz)

Keys Tactile feedback keys Controls Motor On/Off, Control Auto/Manual, Motor Speed in Manual Mode Operating temperature range 0 °C to +50 °C Storage temperature range 0 °C to +70 ° C Operating voltage 230 VAC +10%, 50 Hz (Optional : 110 VAC)

G.A. DRAWING:

Belt Weigher Indicator Motor Control Panel For more details, contact us at - N.R. ENTERPRISES Flat #1, Pooja Enclave, Lane #1, Shahu Colony, Karvenagar, PUNE, 411052, INDIA Tel. : +91-20-2547 6057, 2547 6081, 2547 8098 Fax : +91-20-2547 0244 E-mail : nre@nre.co.in Website : www.nre.co.in

ISO 9001:2008 Cert.# Q194809

TOTAL FLOW

NRE

kg

RESET

CALENT

HIGH WT

VB

NRE

NW

ACK

NRE