Omega Engineering DP3300 Series 사용자 설명서

DP3300 Series User’s Manual 

Page4 

DESCRIPTION: 

 
 
A highly versatile series, DP3300 offers  a unique combination of two analog channels or two pulse input channels or a 
combination of pulse (square wave) on one channel and an analog signal on the other. This feature allows  it to be used  as 
counter, rate, RPM or a frequency monitor along with  displaying an analog signal such as 4-20ma loop current, voltage or 
millivolts or a temperature signal from thermocouples, RTDS etc. For example, flow and temperature or flow and pressure can 
easily be monitored in a single unit. 
 
On the analog channel, signals from thermocouples, RTDS or thermistors are linearized and displayed in degrees Centigrade or 
Fahrenheit. Voltage and  milliamp signals (4-20ma etc.) are displayed in engineering units that correspond to the process being 
monitored. Scaling is accomplished through front keys and does not require any tedious formulas. 
 
The Pulse (or square wave input) channel functions like four monitors in one. It can be programmed as an up/down counter, rate, 
rpm or frequency monitor. In counter mode, the channel can count up or down to a maximum count of 9,999,999 and also offers 
three presets along with built in delay timers. As a rate indicator, it offers a programmable time base from 1.000 to 9999.999 
seconds.  
 
In RPM mode, the channel counts incoming pulses and displays the data as revolutions per minute. In frequency mode, an internal 
crystal reference is used to indicate the frequency of incoming pulses (low frequency mode only). Measured frequency range is 
from 1Hz to 1 megahertz. Two modes of operation are supported: 
   1. High frequency mode    (resolution = 1Hz) 
  2. Low frequency mode    ( resolution = 0.01 Hz) 
 

NOTE: Check model number for the type of input and display units ----   thermocouples, 4-20ma, 0-5Vdc, or  0-10Vdc 

etc...  

  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

SAVING PROGRAMMED PARAMETER: 

 
 

DP3300 saves all the programmed parameters in an EEPROM (electrically erasable programmable read only memory). 

An EEPROM stores the programmed parameters even when the power is removed from the unit. However, it is important to note 
that if the parameters are being changed during setup, they must be saved in the EEPROM by pressing and holding the RESET 
key till the display reads  'SAVING' (also described under SETUP). If the parameters are NOT saved and the power is removed 
from the unit, any newly changed values will be lost (the unit will, however, maintain the old values). 
 
 

    -1 

     240vac Power 

    -2 

     15vdc Power 

    -3 

     4 Relay Outputs 

    -4 

     4 Open collector outputs 

 

    

 
DP3300-TC 

   

 J,K,T,E Thermocouple, 4-20ma, 0-10vdc 
 & 0-5vdc pulse 

       Thermistor (400 Series) , 4-20ma, 0-10vdc and  

0-5vdc pulse 

DP3300-RTD         100 Ohm RTD , 4-20ma, 0-10vdc and 

  0-5vdc pulse 

    

  'R' Thermocouple, 4-20ma, 0-10vdc and 

 0-5vdc pulse 

    

    'S' Thermocouple , 4-20ma, 0-10vdc and 

 0-5vdc pulse 

    

    'B' Thermocouple , 4-20ma, 0-10vdc and 

 0-5vdc pulse 

       100Millivolt , 4-20ma, 0-10vdc and 

 0-5vdc pulse