Assessments - 4, GPA: 4.8
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This allows the user to “Tare- Out” a starting weight in hydraulic weighing applications. To remove the Tare feature turn the unit off and back on again and do not push the On/Off button during the flashing period. 3. Battery Replacement (9 Volt Type) The battery can be replaced simply by removing the single screw at the top of the battery door. Remove the old battery, unplug the cable connector and replace with Eveready type 216 or equivalent. Replace the battery door and secure with the self-tapping screw. (Do not overtighten) NOTE:.For.best.accuracy,.re-calibration.per.step.4.should.be.performed.at.the. time.batteries.are.replaced. M3366/0606 DPG5000 4. Re-Calibration This procedure requires a known pressure source of at least ±0.1% accuracy in order to fully utilize the accuracy potential of the DPG5000 (If not available, the gauge can be returned to OMEGA for re-calibration.) Procedure: A. Ensure the Gauge is at 0 psig (or vacuum if absolute), and adjust the zero as per instructions in step 1. B. Apply full scale pressure to the pressure port and adjust the span (“S”) pot until the display reads the correct pressure. C. Re-check the zero and re-adjust the zero (“Z”) pot if required. D. Repeat steps B and C, until no further adjustment is required. 5. Use Of Peak-Hold Feature (Optional) After initially turning the gage on (wait until the display stops flashing), a second push of the On/Off button energizes the peak-hold feature and causes an arrow to appear in the display. In this mode, only the highest reading sensed will be shown (until a higher reading comes along). This “peak” reading will be retained until the unit is reset by turning it off with a third push of the button. The sequence can then be re-initiated; one push for on in normal mode, two pushes for “peak-hold” mode and a third push for Off/Re-set. 6. Analog Output Option (0 To 2 VDC) The 0–2 VDC analog output is accessed through a miniature “Phone Jack” (mate supplied) on the back of the unit (see External Power and 0-2 VDC Output Plug drawing on the last page). The “Tip” connection is “+ Output” and the center connection is “-Output”. DO NOT CONNECT TO THE CASE CONNECTION. This should only be used as a cable restraint. To minimize the effect on the battery life, the output should not be loaded with less than 100,000 ohms. 0 to 2 VDC Table 0-2 VDC Output Tip + Output Center – Output Body No connection DPG5000 M3366/0606 7. 4-20 mA Transmitter Option When equipped with this option the gauge no longer operates from batteries but instead is “Loop Powered”. The loop connection is made to a 6 pin receptacle located at the rear of the unit (a mating plug is supplied). A voltage of between 9 and 32 VDC must be maintained at this connection (Pin A is “+” and Pin B is “-” see sketch) to insure proper operation. Completion of the earth or system ground (Pin F) is recommended for proper circuit protection. Power supply voltage must be sufficient to maintain a minimum of 9 VDC at the gauge terminals after “dropping” voltage across RL at full scale current (20 mA). Example: If RL = 250 ohm then “drop” is 0.02 Amps X 250 ohm = 5 volts. Therefore power supply minimum is 5 V + 9 V = 14 V. RE-CALIBRATION: The procedure is the same as in step 4, except that there are 2 sets of zero and span adjustments. The front panel controls affect the display and the rear controls (remove “battery” door) affect the 4/20 mA signal. Typical 4-20 mA Circuit Gauge Process Connector Controller A B C D – EXCITATION + EXCITATION 4-20 mA CURRENT LOOP E LR +Vin F M3366/0606 DPG5000 8. External Power (24 VDC) and 0 to 5 VDC Analog Output Option When equipped with this option the gauge no longer operates from batteries but instead is “externally powered”. Both the 24* VDC input power and the 0 to 5 VDC Analog Output are connected to the 6 pin circular connector on the rear of the unit. Pin connections are as follows: *Actual.range.of.input.voltage.is.12.to.31.VDC. 24 VDC External Power and 0-5 V Analog Output PIN -A-PLUS (+) 24 VDC POWER IN 6 Pin Connector PIN -B-PLUS (+) ANALOG OUTPUT PIN -C-MINUS (-) ANALOG OUTPUT PIN -D-MINUS (-) 24 VDC POWER IN PIN -E-NO CONNECTION PIN -F-CASE GROUND AF BE CD 9. External Power Without Other Options The external power input is accessed through a miniature “Phone Jack” (mate supplied) on the back of the unit. The “Tip” connection is “+ Power” and the center connection is “-Power”. DO NOT CONNECT TO THE CASE CONNECTION. This should only be used as a cable restraint. It is important that you never remove or insert the “Phone Jack” connector into the gauge with the power turned on. This can damage the gauge and cause it to fail. Only turn the power on after the “Phone Jack” has been inserted into the external power connector. External Power and 0-2 VDC Output Plug Body Center (Note: Not to scale) Tip DPG5000 M3366/0606 Notes Thank You for Purchasing OMEGA Products OMEGA’s policy is to make running changes, not model changes, whenever an improvemen...