• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print
SETTING THE DISPLAYED UNITS
REFERENCE CALIBRATION

TM-5-3895-374-24-2 M081 Asphalt Mixing Plant Manual
Page Navigation
  422    423    424    425    426  427  428    429    430    431    432  
TM 5-3895-374-24-2 955-257 6.7  SETTING THE TIME BASE (Models 2000, 2001 and 2003 only) A time base must be selected when a TIMER is included. UNITS UU You can select Hours:Minutes (H:M) or Minutes:Seconds (M:S) for the time base.  Push the NO key to TIME H:M change the selection. When  the time base is correct, push the PARAM DISPLAY key to advance to the next display. 6.8  SETTING THE SPAN The next two displays are LO and HI span.  Span is the LO and HI limits outside  of  which  the  system  is not  to  operate. The  controller automatically limits all setpoints and alarms to be within this span. The controller stores in permanent memory the maximum allowable spans for all listed thermocouples and RTD inputs. Unless ordered otherwise, the maximum span will appear on these displays.  You can select any  span  up  to  the  stored  limits  for  thermocouple  and  RTD  inputs.    Push  the  UP  arrow  to  read  the maximum programmed limit. Process type inputs are limited to any span between -3200 and +3200 units.  You can assign any display value to the LO SPAN and HI SPAN within these limits and the controller will automatically linearize all values in between.  Use the arrow keys to change values.  Advance from LO to HI SPAN using the PARAM DISPLAY key.  The LAST key will back up from HI to LO SPAN.  Both direct and reverse spans are allowable. CONFIGURATION  calibration  for  controllers  with  thermocouple  or  RTD  input  is  now  complete.    If  you  have  this  type  of controller proceed to paragraph 6.11. If you have a process input controller, three more displays  are available. Push the PARAM DISPLAY key and proceed to Section 6.9. 6.9  SETTING THE DECIMAL POINT This display allows the selection of decimal point position from zero (no DECIMAL  decimal  point)  to  the third place from the right (i.e., 0.783). Use the PLACES X arrow keys to select the decimal point position. When the decimal position is correct, push the PARAM DISPLAY key to advance to the next display. 6.10  SETTING THE DISPLAY RANGE This display is used to program the desired display indication at  minimum  input.    For  example:  LO  VAL can  be  set  to  indicate  0  for  a  4  mA  input  level.    After  setting  the  desired  reading  using  the  arrow  keys, press the PARAM DISPLAY key. This display is used to program the desired display indication at the maximum input. For example:  HI VAL can be set to indicate 2000 for a 20 mA input level. The  LO  VAL/HI  VAL  procedure  is  the  electronic  equivalent  of  changing  the  scale  in  an  analog  panel  meter.    No  input reference calibration is required. You can change the displayed range entirely through the keypad when a process signal such as 4-20 mA is the input. ECLIPSE INSTRUMENTATION DIVISION (page 3 - 1120) LO SPAN XXXX UU HI SPAN XXXX UU DECIMAL PLACES X LO VAL XXXX UU HI VAL XXXX UU







Western Governors University

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.