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TPG DPM-3221 User Manual

Digital dc power meter with data logging capability
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Introduction
The DPM-3221 digital DC Power Meter measures and displays in real time; DC Voltage (0-60V), DC Current (0-
200A with a 200A/50mV* external shunt) and Watts (0-12000W). It also displays; Amp-hour, Watt-hour, maximum or
peak Watts, running time since Power Meter start up and minimum and maximum values of voltage and current
during the measuring period. The power for the meter can either be from the source or the load whichever has a
minimum 5V DC available (only voltages between 5V and 60V can be measured when powered in this way). The
Power Meter can also be powered by an external DC voltage of 5 to 60VDC, which then allows a voltage
measurement range of 0-60V. Once the Power Meter is powered up it starts to display and log the Voltage and
Current. It also displays Wattage, Amp-hours, Watt-hours, Max. & Min. Voltage and Current and peak Watts. The
logged data values are recorded at 30s to 180s intervals. Up to 1,500 sets of data can be stored in the Power
Meter's Memory (EEPROM) so even when the Power Meter is powered down, data is retained. The data can be
retrieved by a PC using the optional Data Adapter (DPA-3051) and a software program provided. Unless reset, the
last set of data values; Ah, Wh, peak Current, peak Watts, (and sometimes min. and peak Voltage), is retained
and displayed when the DM-3221 is powered up. A new group of data (up to 20) is created each time. The Power
Meter can be mounted using the Snap-On bracket provided or magnetically on ferrous metal surfaces. *50A/50mV
and 100A/50mV shunts may also be used with current ranges of 0-50A and 0-100A respectively.
Precautions
a. Do not exceed 60V DC when using the Power Meter.
b. This meter is designed for indoor use only.
c. Do not disassemble or attempt to repair the Power Meter. Return it to your service agent for repair.
d. If the start-up screen does not appear, immediately remove the power source.
e. Double check the correct input and output polarity. If the input connection has the wrong polarity, the LCD
display will not show. Wrong polarity on the output may result in excessive current flow.
f. Damage to the Power Meter may result if voltage is applied with the wrong polarity.
g. Do not exert pressure directly on the LCD display as damage may occur.
Controls and Indicators
1. Shunt connector
2. LCD Display
Scrolling display
3. Scrolling display
www.procontechnology.
Digital DC Power Meter with Data logging capability
: Flat cable with phone plug RJ12 6P/4C.
: Displays: V, A, and W continuously.
: Amp Hour (Ah), Watt Hour (Wh), Peak Voltage (Vp), Peak Current (Ap), Peak Watts
(Wp), Min. Voltage (Vm) or sag, Min. Current (Am) and total time since power up.
: Any one of the scrolling displays can be halted at any time (and also released) by one
quick press of the "Reset" button (5)
.au
com
DPM-3221
User Manual
FRONT
Phone: (03) 98306288

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Summary of Contents for TPG DPM-3221

  • Page 1 User Manual Introduction The DPM-3221 digital DC Power Meter measures and displays in real time; DC Voltage (0-60V), DC Current (0- 200A with a 200A/50mV* external shunt) and Watts (0-12000W). It also displays; Amp-hour, Watt-hour, maximum or peak Watts, running time since Power Meter start up and minimum and maximum values of voltage and current during the measuring period.
  • Page 2 SIDE 3. External Power Socket: An external power source (5-60VDC) extends the measured voltage range from 5-60V to 0-60V. Pins: 5V-GND-RC 5V = +5V to +60V external DC source. GND = Ground or negative of external DC source. RC = Remote Clear, this is for deleting the stored data and setting the shunt rating. 4.

  • Page 3: Wiring Diagram

    2. The last set of accumulated data will appear on the LCD. The old data can be cleared by pressing the Reset Button for 5 seconds twice. See the “Resetting the DPM-3221” section for more information. 3. Connect the remaining leads to complete the installation of the DC Power Meter.
  • Page 4 DISPLAYS: A. On first powering up the display, the firmware version and factory preset data port mode are shown. Then it briefly shows the preset shunt rating of the DPM and finally the data display appears. B. On the data display, the Volts, Amp and Watt are continuously displayed; all other data is shown cyclically at about 3 second intervals.
  • Page 5 Setting the Shunt rating of the DPM If you want to change the DPM shunt rating to match your shunt, proceed as follows: 1. After checking the DPM is in good order, power down the unit – if necessary, unplug the phone jack from the interconnector.
  • Page 6 Resetting the DPM-3221 There are two ways to clear the previously stored data. 1. Press and hold the Reset button (5) until the LCD display indicates “Press again 5 seconds to reset”, then release the Reset button and press again holding for 5 seconds to delete the data.

  • Page 7: Specifications

    SPECIFICATIONS Model DPM-3221 (For use with external shunt) Measured Parameters 50A/50mV 100A/50mV 200A/50mV Current Range Amp (A) 0-50A cont. 0-100A cont. 0-200A cont. Voltage Range Volt (V) 5-60V or 0-60V with external DC source Max. recorded W:12,000W Power Watt (W) Resolution of W:0.1W for W<10,000...