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DP3300 Series User's Manual
When this parameter is set for "Normally Closed", the relay is closed when readings are below LIMIT, and opens when the
channel reading exceeds its LIMIT value.
The display will show 'LTx N.O.' (where 'x' is the channel number) for a Normally Open setting or 'LTx N.C.' for a
'Normally Closed' setting. Use ^v key to toggle between two settings. Once the desired setting is displayed, push SETUP key to
go on to setting up limits 2 and 3 for the channel. The display format is 'LT2 N.O' or 'LT2 N.C.' and 'LT3 N.O' or 'LT3
N.C' respectively.
'Engineering Units' Setup
After setting a channel's relay for NORMALLY OPEN/CLOSED operation, the next step sets the 3 letters that follow the process
value in the display. These 3 letters represent the measurement units for analog channels (only analog channels have this feature).
Any desired combination of the following letters may be programmed:
A,B,C,D,E,F,G,H,I,J,L,N,O,P,Q,R,S,T,U,Y
The letter selection goes up to 'Y' and down to 'A' and from 'A' down to ' - ' sign. The ' -' sign indicates that that particular
digit will be blanked e.g. if the desired engineering unit was feet, then the display can be programmed to show ' Ft'. In this case
one letter (the letter to the left of letter 'F') will be blanked out by programming a ' - ' sign in its location.
If no engineering units have been programmed, then three dots will be displayed. Whenever the input type is changed from one
type to another, the system automatically clears the engineering units. Therefore, it is necessary to enter new units after a change
in the input type has been made. The only exception in this case is when a thermocouple selection is made. In that case, the unit
automatically enters an 'F' or 'C' (Fahrenheit or Centigrade) depending upon the selected display units. However, just like the
other inputs, any alternate units may be programmed for thermocouples.
The display will first show 'C1 UNIt' after which the present UNITS setting will be displayed. Use ^v key (ref. Setup For High
Scale) to setup the desired UNITS . Push SETUP key after the desired UNITS are displayed.
'Rate Time Base' Setup
Rate time base is used for calculating rate for the selected channel. The units for Time base are seconds and it can be entered in
th
increments of 1000
of a second. Minimum Time base is one second.
The display will first show 'rAtE tb' after which the current Time Base value will be displayed. Use ^v key (ref. Setup For High
Scale) to enter desired value. Push SETUP key after programming Rate Time base.
Input Signal type selection:
The display will briefly show 'IP TYPE' (for "Input type") after which the present input type for the selected channel will be
displayed. Various inputs available are: J T/C, CR.AL T/C (Chromel Alumel, type K T/C), T T/C, E T/C, CURRENT, or
VOLTAGE. If the unit has a noble metal thermocouple option, then only one T/C can be selected i.e. B T/C, R T/C, or S T/C.
Use ^v key to display the desired input type. Once the desired input type is displayed, push SETUP key to enter that input type
and go to the next step.
SYSTEM CONFIGURATION:
After entering correct pass-code and selecting the blinking 'SYS' (ref. SETUP section), the DP3300 goes into the SYSTEM
CONFIGURATION mode. This mode allows setting up parameters that affect all the channels or the instrument in general.
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