N269 Tonnage Monitor

N269 process control tonnage monitor

N269 Process Control Tonnage Monitor

The N269 process control monitor provides advanced information and control for refractory, powdered metal and compaction presses. It is far more comprehensive than a typical tonnage monitor. It can improve product quality, reduce scrap and increase profits while protecting against machine overload. Help solve quality control and size variations with the N269. Plus, continuously check job status to forecast completion and measure press performance against established standards (you can set).

The N269 controls the variable fill on the basis of peak load. It uses one or two strain gages to determine the peak load on each press cycle and responds by operating the appropriate relay. Five relays are used: four control the process and the fifth can stop the press. Four setpoints establish the five zones.

Four control setpoints establish a "quality window" that assures acceptable parts are being made. It has five zone counters (high reject, good-decrease fill, good, good-increase fill, low reject), four relay counters (reject, good, decrease fill, increase fill) and up to six alarm counters.


  Standard Option
Automatically operates fill relays  
Displays high setpoints  
Shows low setpoints  
Displays tonnage changes  
Identifies out-of-tolerance hits  
Shows batch size  
Displays balance of the batch counter  
Shows number of pieces produced  
Displays strokes-per-minute  
Gives last high/low alarm tonnage  
Shows tonnage highs/lows over time  
Automatic Zero Balance  
Gives time lapse since last hit  
Press overload protection  
Standard computer interface  
Door Lock  


No. Of Channels One or Two
Sensor Inputs Full bridge strain gauge sensors
120 to 1000 ohms
Up to (2) 350 ohm sensors
Sensor Excitation Built-in 10VDC @ 475mA max (Short circuit protected)
Balance Range +/- 1mV/V of offset
Gain Range Low Gain = 0.568mV/V to 5.000mV/V
High Gain = 0.057mV/V to 0.625mV/V
Analog Output .025" header
2.5VDC @ Press Capacity
Accuracy +/- 1% of full scale max
Non-linearity +/- .1% of full scale max
Flat DC to 1KHz
Display 4 digit display
Display Update 2 updates per second
Resolution 1024 count
SPM 300 SPM (threshold trigger)
800 SPM (probe trigger)
Calibration Shunts 1 Meg Ohm .1% precision resistor
Trigger Probe or Threshold
Threshold Probe Accept 24-115V AC or DC
(Built-in voltage source of 115VAC)
It supports limit switch, solid state or mechanical relays
Resolver Interface No
Shutdown Relay 10A @ 120VAC
N.O. Contact
Bypass switch available
Power Req. 69 Watts max, 95-130VAC @ 50-60Hz OR
190-260VAC @ 50-60Hz
Operating Temp. 0-70 degrees Celsius
Weight Approximately 25.8lbs

  Width Height Depth
Dimensions 12.5 " 14.5 " 6.8 "


Name Format Link
User Manual PDF


Type Name Description Link
Standard Product PM Kit PM Kit includes strain gauge
  sensors, cables and mounting
Standard Product PressNet Networking software that
  provides detailed production
  and tonnage information
Standard Product TT-Graph Signature analysis program that
  generates tonnage signatures
  and provides a simple approach
  for analyzing the signatures
Service Installation On-site product installation


Enter the value below to validate the form:
[ Different Image ]