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Ultra Twin can measure from zero to 131 feet (40m) from the transducer to 
the  surface  being  monitored,  dependent  on  the  application  chosen  and 
transducer used. 
Six  user-definable  relays  can  be  programmed  to  activate  alarms,  pump 
starters, or other control equipment, and can be allocated to either point of 
measurement.  Also provided  are four  user definable  digital  inputs  on  the 
wallmount  model  and  seven  on  the  fascia  mount  model,  which  can  be 
allocated  to  either  point  of  measurement.  There  is  an  isolated  4-20  mA 
output for each point of measurement that can be connected to a recorder or 
PLC,  to  monitor  level  space,  distance,  volume,  OCM  head  or  flow 
(dependant on the application  chosen), independently from that shown on 
the display. There is an RS232 port, so that the Ultra Twin can be operated 
remotely by a PC or other equipment. 
Ultra Twin can be programmed either by the built-in keypad (standard), or 
by PC via the RS 232 Serial Interface (optional).  
All  parameters  are  stored  in  non-volatile  memory,  so  are  retained  in  the 
event of power interruption. A second backup copy of all parameters can 
also  be  retained  in the  Ultra  Twin  memory,  in case  an  alternative  set of 
parameters needs to be stored. 
The  system  utilises  the  unique  DATEM  software  (Digital  Adaptive 
Tracking of Echo Movement). This is a proven digital mapping technique 
developed  especially  for  the  Pulsar  Ultra  range,  which  gives  the  system 
unequalled  ability  when  identifying  the  “true  target  level”  in  the  face  of 
competing echoes  from pipes,  pumps or other obstructions.  Coupled  with 
the powerful, long-range abilities of the ‘all new’ dB transducer range, the 
Ultra Twin  lives  up  to  its reputation  as the  most  reliable  ultrasonic level 
measurement system available. 
The  Pulsar  Ultra  Twin  ultrasonic  level  controller  has  been  designed  to 
provide maintenance-free fit and forget performance.