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TABLE OF CONTENTS SPECIFICATIONS ................................................................................................................................................................ 3 DESCRIPTION ...................................................................................................................................................................... 5 DISPLAYING PARAMETERS..................................................................................................................
TABLE OF CONTENTS Electro-Mechanical Relay Option .................................................................................................................................... 22 Figure 2. Electro-mechanical Relays Hookup Example ............................................................................................... 22 FIG- 3. DPS3300 Series terminal compartment .................................................................................................................. 23 POWER.........
SPECIFICATIONS (Typical @ 25C and rated supply voltage unless otherwise specified) STANDARD INPUTS * 4-20ma 0-50ma 0-5Vdc 0-10Vdc * Thermocouple inputs: J, K, T, E, R, S, and B * Cold junction compensation error: +/- 1C (10C to 40C) * Open input indication: HELP displayed * Temperature displayable in Degrees C or F * Non-standard inputs available --- consult factory. ANALOG TO DIGITAL CONVERSION * 4-1/2 Digit (20,000) Count) A/D Converter * Dual slope integrating converter with 7 conversions /sec.
NOTE DPS3304 & DPS3314 are four channel units. Therefore, any reference to channel numbers with respect to these models is for channels 1 through 4 only. DPS3307 and DPS3317 are seven channel units, and therefore, any reference to channel numbers for these models is for channels 1 through 7. DPS3304 & DPS3307 are base models that accept only one type of transducer signal on all four/seven inputs.
DESCRIPTION DPS3300 Series instruments are multi-channel scanners that pack a number of functions into one unit. Tasks that require multiple monitors can now be accomplished by using only a single unit. Signals from a number of different transducers can be brought into screw terminals that are conveniently located on the back panel of the instrument. The unit automatically scans through each channel, displaying the channel number and process value.
DISPLAYING PARAMETERS DPS3300 Series keeps track of various parameters and these may be displayed by pushing appropriate keys on the front panel.
DISPLAY MODES DPS3300 Series has multiple display modes and can be programmed to either scan, display the channel with the highest reading, display the channel with the lowest reading, deviation between channel's process variable and a pre-programmed setpoint, difference between any two selected channels or just run as a timer. In the timer mode the unit keeps track of process run time with crystal controlled accuracy. Elapsed Time display format is 'HH.MM.SS' for hours, minutes, and seconds.
Scan Mode When setup for scan mode, individual channels are displayed for a programmed period of time. At the end of that time period the, display automatically switches to the next channel. For ease of reading, the display first shows the channel number (Format: 'CHANEL 1') and then the process variable along with the programmed three digit engineering units e.g. 23.45 PSI. Display time for each channel is programmable from 1-999 seconds (16.65 min.).
Deviation Mode In deviation display mode, DPS3300 Series will show the differential between a pre-programmed setpoint and process variable being monitored on each channel by the scanner. Individual setpoint for each channel is programmed during CH Setup and can be any value over the range of selected scale or thermocouple being used.
To get into SETUP mode, push the SETUP key twice. The first push displays elapsed time and the second push brings the unit into the SETUP mode. SETUP mode is indicated by 'SETUP' in the display window (the SETUP LED indicator will also be illuminated) followed by 'ENtR PC' (for ENteR PassCode). The passcode feature has been provided to keep unauthorized personnel from changing any parameters. Each of the five keys on the front panel are labeled with a number in the lower right corner.
NOTE: To exit from any point during SETUP procedure or to save the newly made changes, simply press and hold the RESET key until the display shows 'SAVING'. When the display shows 'SAVING', it is indicating that the unchanged and the newly made changes are being saved in the EEPROM for permanent storage. It is important that the above step be performed any time changes are made to the configuration of the unit and before power is removed. If not done so, all the new changes will be lost.
Setup For High Scale After setting a channel's decimal point position, the next parameter to be set is Hi Scale. This parameter determines what number will be displayed when the transducer puts out its maximum signal. For example, suppose a pressure transducer produces a 0Vdc to 10Vdc signal which corresponds to 0psi to 150psi. Then you would want the display to show 150 when 10Vdc is measured. To do this, set the Hi Scale=150.
For High Scale) to set the desired TARE number. Once the desired TARE value is displayed, push SETUP key to enter that value and go to setup Setpoint. Setup For Setpoint After setting a channel's TARE, the next parameter to be set is channel's SETPOINT. SETPOINT is used in Deviation Display mode. In this mode the display is given as PROCESS-SETPOINT.
When this parameter is set for "Normally Open", the relay is open when it is deactivated (readings are below LIMIT), and closes when the channel reading exceeds its LIMIT value. When this parameter is set for "Normally Closed", the relay is closed when it is deactivated (readings are below LIMIT), and open when channel reading exceeds LIMIT value. The display will show 'rLy N.O.' for relay Normally Open or 'rLy N.C.' for Normally Closed setting. Use SDIGT key to toggle between the two settings.
Setup Examples Example #1: Use of the OFFSET Parameter Setup for a 4-20ma transducer signal corresponding to 0-500 gallons of fluid (reading in 10th of a gallon resolution): DECIMAL POINT HIGH SCALE LOW SCALE OFFSET TARE = 999.9 = 500.0 = 000.0 = 4.000 = 0.000 Example #2: Use of the LOW SCALE Parameter Setup for a 4-20ma transducer signal corresponding to 500-2000 degrees Fahrenheit temperature i.e.
The channel numbers in Display Option #6 start with 'CH1 dIF' and go up to 'CH7 dIF' (CH4 dIF for 4 channel units). Following this the display jumps back to Option #1 (elapsed time), and the cycle is repeated. Setup For Display Time The next parameter to be set is DISPLAY TIME. This determines the number of seconds a channel's reading is displayed before moving to the next channel. The display will first show 'dSPLy t' (for Display Time), and then the current setting in seconds. Use SDIGT key (ref.
Setup For Channel Calibration After setting the Cold Junction Reference temperature, the next step is a display of channels for calibration purposes. This allows easy calibration of each channel without the instrument scanning to the next channel. The display will show the channel input reading in the form 'x-nnnnn' where x=channel # and nnnnn is the channel reading. NOTE: ONLY channels that are turned ON will be displayed at this time! Press SETUP key to step the display to the next channel.
3. Adjust the gain pot of the instrument until the display reads '1100'. 4. Short channel #1's input with a wire or shorting bar. 5. Push DIFF key. The display will read '0002' --- or some other value. 6. Adjust offset pot of instrument until the display reads '0000'. 7. Push SETUP key -- the display will show Cold Junction temperature. 8. Remove the shorting bar from channel one input and connect the thermocouple calibrator again. 9. Repeat steps 2 through 7 till the unit reads proper temperature.
Once the desired channel has been selected, push 'HI/LO' key. Pushing it once will show the high peak attained by the selected channel. Pushing it a second time will indicate the low process value (NOTE: The second push, to display valley, must be initiated before the display reverts to normal display mode). Before displaying high peak, the display will read 'CH2 HI' (for Channel 2 High Peak). Similarly, for low peak the display will indicate 'CH2 LO' (for Channel2 Low Peak) before showing the value.
DPS3317 7 Channel Unit DPS3314 4 Channel Unit ENTER PASSCODE -- 3254 ‘SYS’ Flashing SYS CH ‘CH’ Flashing SELECT CHANNEL DISPLAY OPTION (Select one) ELAPSED TIME SCAN HIGH CHANNEL LOW CHANNEL DISPLAY DEVN. CHANNEL DIFF. -TH Option HI VOLTAGE CURRENT THERMISTOR DISPLAY TIME IP TYPE -BM Option R, S or B Option -100mv Option LO VOLTAGE HI VOLTAGE CURRENT -RTD Option HI VOLTAGE CURRENT RTD 385 RTD 392 VOLTAGE or CURRENT CHS.
DPS3307 7 Channel Unit DPS3304 4 Channel Unit ENTER PASSCODE -- 3254 ‘SYS’ Flashing DISPLAY OPTION (Select one) ELAPSED TIME SCAN HIGH CHANNEL LOW CHANNEL DISPLAY DEVN. CHANNEL DIFF. -TH Option SYS CH ‘CH’ Flashing SELECT CHANNEL IP TYPE R, S or B Options mV, V or C Options ‘R’ T/C HI VOLTAGE THERMISTOR RTD 385 RTD 392 CURRENT DISPLAY TIME -BM Option -RTD Option LO VOLTAGE VOLTAGE or CURRENT CHS. ‘S’ T/C ‘B’ T/C ‘J’ T/C CR.AL T/C (K) ‘T’ T/C ‘E’ T/C TEMPERATURE CHS.
RATE DPS3300 series tracks the rate of process change/minute for each channel. This rate is displayed by first pushing the CH. SEL key to select the channel whose rate is desired. Once the channel has been selected, push DATA key. The display will briefly read 'cx-rate' (x=channel #), and then the monitored rate for that channel. LIMITS DPS3300 series units support limit alarms on all the channels. These limits can be programmed over the entire range of selected thermocouple or scale.
NOTE: LOOK UNDER SPECIFICATIONS FOR THE RATING ON RELAYS AND OPEN COLLECTOR OUTPUTS. UNDER NO CONDITION SHOULD THE RELAYS AND OPEN COLLECTOR OUTPUTS BE OPERATED BEYOND THEIR RATED CAPACITY. DOING SO CAN DAMAGE THE UNIT PERMANENTLY. The status of the relays for all the channels is indicated on the front panel by a row of LEDs. Whenever the relay is energized, its respective LED is turned on. FIG- 3.
POWER Power connection should be made to the three terminal connector as shown in figure 3. Also, make note that it is very important that the power line inputs and the power ground are not switched. Doing so will permanently damage the instrument. Refer to Figure 3 for proper connections. For convenience, the printed circuit board is labeled L1 L2 GND on the under side of three terminal power connector. For instruments with the 15Vdc power option, L1 = negative supply and L2 = positive supply.
DIRECT INTERFACE TO UNIVERSAL RELAY MODULE A special feature in the DPS3300 series units allows direct interfacing with Universal Relay Module (Model RELAYURM400/800) – via a serial interface. The serial interface is available at a separate connector (as shown) in the terminal compartment. RELAY-URM400/800 series relay module is a very versatile instrument that is used for switching up to eight 15 ampere loads.
TROUBLE SHOOTING If the meter locks on a particular display, unplug and plug in again to unlock the display. A total reset clears the memory and defaults all values to zero. To perform this reset, re-apply power with RESET key pressed in. Factory Channel settings: To obtain factory preset values simply re-apply power with SDIGT key pressed in. This will also clear memory of any erroneous values and is the preferred method of resetting a unit that might be malfunctioning due to corrupted memory .
MOUNTING PICTURE HANGING-TYPE FIXTURE FOR MOUNTING SCREW 120mm 4.72” MOUNTING SCREW SLOTS 151mm 5.94” Figure - 4.
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