SPECIFICATIONS (typical @ 25 C and rated supply voltage unless otherwise specified). STANDARD INPUT: * 4 - 20 MA, 10 - 50 MA, 0 - 5 VDC, 0 - 10 VDC EXTERNAL HOLD: * An external low level signal applied to the HOLD pin on the rear connector will initiate hold function. ANALOG TO DIGITAL CONVERSION: * 41/2 Digit A/D conversion.
DESCRIPTION The DP3600 series of instruments are micro-processor based intelligent monitors that are capable of performing several tasks in addition to displaying the process variable. The micro-processor technology used in the system design has provided these instruments a cost and performance edge that is simply not possible with analog systems.
Programming Group Selection: On entering correct passcode, setup procedure starts. The very first step will let you select one of the three groups of parameters that you can program. Three available groups are: 1) SCALING LIMITS 3) PROGRAM SYSTEM. Each group will let you program various parameters as shown below: SCALING 1.
Offset: Next configurable function is offset and is indicated by the message ‘OFFSET’ followed by current offset value. To change the value of flashing digit press ^v key. To move the flashing digit, push <NXT> key. After programming the desired value of offset, push the "SETUP" key to get to the next function. Tare: Tare mode is indicated by the word 'TARE' followed by current Tare value.
Selection of Limit 4 as Process or Deviation Limit: This step comes after programming Limit 3 and is indicated by the message ‘LT3 Pr’ (if Limit 3 is setup as Process limit) or ‘LT3 dEN’ (if Limit 3 is setup as deviation limit). Alternate selection can be made by pushing ^v key.
Audio Alarm On/Off: This unit supports an audio alarm which comes on when ever a limit value is exceeded. This alarm can be turned On or Off, as desired. The selection is made by pushing ^v key. If the alarm is ON, the display will read ‘ALR ON’...
Rate Time-Base: This step is for programming time-base for calculation of Rate. Units of time-base are seconds. Again, the active digit will be flashing. To change the value, push ^v key. To activate another digit for change, use <NXT> key. On finishing, push SETUP key. Remote Tare/Hold: Remote Tare/Hold feature lets you select between the remote switch being used for resetting tare or holding the reading on the display.
RESET key. This will reset the low peak to current Process Variable value. RATE The DP3600 unit keeps track of the rate of process change and can be displayed by pushing the key labeled ‘RATE’. The display first reads 'RATE' followed by the rate value that was monitored over the last time base.
200 units at 0VDC and 3000 units at 5VDC output then set low scale equal to 200 and high scale to 3000. The DP3600 unit will linearly scale the transducer output. For a transducer with 4-20ma the low scale reading can be obtained at the programmed offset value.
LED is turned on. Electro-Mechanical Relay Option: DP3600 units can be ordered with either open collector outputs or electro-mechanical relays. (Check model number printed on the unit for option). If ordered with relays, then these relays are programmed during Setup to operate as either Normally Open (NO) or Normally Closed (NC). The default setting is Normally Open.
SAVING PARAMETER: DP3600 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 RESET key till the display reads ‘SAVING’.
TROUBLE SHOOTING If the meter locks on a particular display, unplug and plug in again the meter to unlock the display. A total reset defaults all scaling values to zero. To perform this reset, re-apply power with RESET key pressed in. Factory preset values for Current, Voltage and millivolt, respectively, can be programmed by simply re- apply power with either ^v, RATE or TARE key pressed in.
MOUNTING 1. Cut a hole in panel to the specifications shown in the figure 4: Figure - 5. Mounting Bracket Assembly 5. Tighten the wing nuts. Check that the meter is secure against the panel. If not, use a screwdriver and slip it into the slot between the bracket and the meter (refer to Figure 6 below to locate the spot...