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SMART PLUG AND PLAY DIGITAL PANEL
MOUNT LOAD CELL METER

MODEL DPM-3

The DPM-3 is a TEDS IEEE 1451.4 compliant smart meter. Just plug in a TEDS compatable Load Cell or Torque Sensor and the DPM-3 will automatically self calibrate. When used with a non-TEDS Load Cell or Torque Sensor the DPM-3 can be setup by simple front panel push buttons. The DPM-3 can be scaled to a full five digits from 0 to 99,999 to read directly in engineering units such as grams, ounces, pounds, inch pounds, etc. The DPM-3 samples 60 readings per second (50 for 50 Hz operation) for fast control response, true peak reading capability, and an analog output (optional) that accurately tracks the signal input. The meter has an adaptive digital filter that can automatically select the best time constant for minimum noise, yet respond rapidly to an actual change in signal level. The peak value can be displayed by a push of a button on the front panel. Auto tare allows the meter to be set to zero for any input signal level. The DPM-3 provides an isolated 5, 10, or 24 VDC for full bridge transducers / sensors. The DPM-3 digital panel meter is a low cost solution to a wide range of load/force and torque monitoring applications.

Please scroll down for Accessories

FEATURES
Plug & Play IEEE 1451.4 Compliant
60 Conversions per second for:
	Fast control response True peak reading Analog outputs (optional) that track the input
Scalable to 5 digits
	Engineering units to ±.99,999 Setup by front panel push buttons
Worldwide input power
	85 to 264 VAC and 90 to 370 VDC
Isolated 5, 10, or 24 VDC output
	Provides transmitter excitation
Peak hold and auto tare
Automatic, adaptive digital filtering
Plug-in screw terminals

PLUG-IN OPTIONS
	OPTION C
	Dual setpoint controller 10 Amp,240 VAC From C relays
	OPTION H
	Isolated linearized analog outputs 0 to 10 VDC or 0 to 20 (4/20) mA
	OPTION T
	Isolated digital communications RS 232 for interface and meter setup RS-485 to interface with multiple meters Baud rates from 300 to 19,200
	Option V
	Isolated low voltage power supply 9 to 37 VDC and 8 to 28 VAC inputs Isolated 5, 10, or 24 VDC outputs

SPECIFICATIONS

	DISPLAY
	Type:	5 LED, 7 -segment, 14.2mm (.56")
	Color:	Red
	Range:	-99999 to +99999 and
		-99990 to +99990

	A to D CONVERSION
	Technique (Pat. Pend):	Concurrent Slope ®
	Rate:	60/s at 60 Hz operation
		50/s at 50 Hz operation
	Output Update Rate:	56/s at 60 Hz
		47/s at 50 Hz
	Display Update Rate:	3.5/s at 60 Hz
		3.5/s at 50 Hz

	ACCURACY at 25°C
	Load Cell Meter:	0.01% FS ± 1 Ct.
	Span Tempco:	0.003% of reading/°C
	Zero Tempco:	0.1 Cts./°C
	Reference Junction:	0.03 degree/degree

	NOISE REJECTION
	CMV from DC to 60 Hz:	Safety-related to 250 VAC 4.2 kVp per High Voltage Test
	CMR from DC to 60 Hz:	130 dB
	NMR to 50/60Hz line:	90 dB with minimum filtering

	ENVIRONMENTAL
	Operating Temperature:	0°C to 55°C
	Storage Temperature:	-40°C to 85°C
	Relative Humidity:	95% at 40°C, noncondensing

	OPERATING POWER
	Voltage (std):	85 to 264 Vac, 0 to 370 VDC
	Voltage (opt):	8 to 28 Vac, 9 to 37 VDC

	EXCITATION POWER SUPPLIES
	Outputs:	5 VDC, 5%, 200 mA max.
		10 VDC, 5%, 120 mA max.
		24 VDC, 5%, 50 mA max.

	PANEL CUTOUT
	Height:	1.77
	Length:	3.62


ACCESSORIES
DPM-3-AD9		DPM-3-RJ11AD9
Adapter Connector		RS232 Connector


DPM-3-DLS		DPM-3-PC6 & DPM-3-PC12
Data Logging Software		Power Cable


DPM-3-TRES
TEDS Reader_Editor Software

Order Code Model	Capacity Range	Description	Price	Quantity	Add to Cart
DPM-3	N/A	Digital Panel Meter	$395
DPM-3-OPT-C	N/A	Dual Relay Board	$97
DPM-3-OPT-H	N/A	Analog Output Board	$107
DPM-3-OPT-T	N/A	Serial Data Board (RS-232)	$88
DPM-3-OPT-TRS485	N/A	Serial Data Board (RS-485)	$107
DPM-3-OPT-V	N/A	Low Voltage Power Supply	$97
DPM-3-AD9	N/A	Adapter Connector	$45
DPM-3-RJ11AD9	N/A	RS232 Connector	$35
DPM-3-PC6	N/A	6 Foot Power Cable	$22
DPM-3-PC12	N/A	12 Foot Power Cable	$26
DPM-3-DLS	N/A	TEDS Data Logging Software	$245
DPM-3-TRES	N/A	TEDS Reader_Editor Software	$150

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Create a data logging system from DPM-3 instruments


Point-to-Point Communications via RS-232	RS-485 multidrop communications

Concept

DPM-3-DLS data logging software turns a PC connected to up to 31 DPM-3 instruments into a powerful, low-cost data logging system.

Data can be displayed on the computer screen in the form of up to 64 simulated meters in 4 groups (or screens) of up to 16 meters each. The on-screen simulated meters can show the readings and alarm indications of selected actual meters, or show values other than those normally displayed by meters, such as peak value. They can also show calculated parameters, or weighted averages that combine data from multiple meters. For example, a virtual meter can display the sum of any number of meter by adding them togather. Available operands are multiply, divide, add, and subtract, with parentheses to allow complex expressions. The on-screen position and appearance of individual meters is user selectable to achieve meaningful groupings.

Data can be logged from selected meters into an ASCII file, which is easily imported into MS Excel for graphing and analysis. User settable parameters include the logging time interval in seconds, the separator character (normally a comma), and header data (with or without time and date). Data files can be password protected.

Hardware

Up to 31 DPM-3 meters can be connected to the PC in addressable multidrop fashion using a single RS-485 line. Each of these DPM-3 meters must be equipped with an RS-485 board. A single DPM-3 meter can be connected to a PC using an RS-232 line. That DPM-3 must be equipped with an RS-232 board.The computer must be PC compatible, operate under MS Windows 95 or higher, and have an available COM1 to COM9 serial port.

Software Installation

The DPM-3-DLS Data logging Software can be downloaded from this website at no charge.
Click here to download the file log4.zip. To install, double-click on the file and follow the on-screen directions.The free download version allows operation in the Demo Mode, which provides a good indication of the capabilities of the software. Connection to actual instruments requires a 12-digit activation code, which will be emailed by Transducer Techniques upon payment of $225. This code must be installed within 10 days of issue.

Sample Screens
	Click on any of the reduced screens for a full-size screen view, then click on the Back button of your browser to return to this page.

		Common Data logging Setup Screen for Simulated Meters This screen allows selection of the number of meters per group (up to 4 groups), default meter colors, and default font size for meter captions.
		Data logging Meter Setup for Groups 1 & 2 This screen allows for setup of I.D., Caption, Type, Serial Address, and Item Number for each meter. The Type can be DPM-3, or Virtual Meter. For a DPM-3 Meter, the Item Number to be displayed can be Net or Peak. For Hardware (or actual) meters, Setpoint 1, Setpoint 2, and Decimal Point can be entered. For Virtual meters, a formula is entered.
		Data logging Screen Setup for Group 1 This screen provides for the spatial layout of the meters to be displayed for Group 1. Right-clicking on any meter brings up a window with allows selection of font size and color scheme for that meter. In the example shown, Meter 4 has a black and white custom color scheme.
		Data logging Setup Screen This screen allows for creating a new data file, opening an existing data file or to display data only.The Data logging Interval are set in seconds. The Data Separator (normally a comma) can be selected. Other selectable parameters are a Header Record, and for each data record, a Time Stamp, Date Stamp, Alarm Data, and Zero Suppression.
		Data logging Start Screen This screen specifies the Com Port (1 or 2) and Baud Rate (300 to 19200). It also allows individual meters to be selected for data logging and to establish communication.
		Data logging Run Screen for Meter Group 1 The display is updated for each meter in real time, including any alarm indications, while data is also written to disk. Similar screens are available for Groups 2-4.
		Typical Data logging Help Screen Pressing on Help on the top menu bar brings comprehensive help screens, avoiding the need for a printed manual for the Data logging Software. The screen to the left is for the Demo Mode, which does not require a connection to actual meters.

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Read and Edit Plug and Play Smart Sensors with TEDS

Computer connected to DPM-3 via RS-232

The DPM-3-TRES TEDS Reader_Editor software was developed to read and edit Plug and Play Smart Sensosr that are compliant to the IEEE 1451.4 Standard. TEDS, or Transducer Electronic Data Sheet, is a set of electronic data in a standardized format defined within the IEEE 1451.4 standard. This data specifies what type of sensor is present, describes its interface, and gives technical information such as sensitivity, bridge type, excitation, etc. This information is stored in an EEPROM chip attached to the sensor. By having this chip, the sensor can identify and describe itself to the network and or Smart Load Cell Meter (DPM-3), thereby easing automatic system configuration.

Sample Screens
	Click on any of the reduced screens for a full-size screen view, then click on the Back button of your browser to return to this page.

		TEDS Reader / Editor Software Version 1.3
		Communications Click on the appropiate serial communication Bus type.
		Com Ports and Baud Rates Click to choose the appropiate Com Port and Baud Rate then click on the Establish button.
		Establish Communication If Communication has been established the Com Port and Baud Rate will be displayed in a window with a green background. If a TEDS EEPROM is detected it will be displayed in a lower window with a green background. At this point click the Continue button.
		Blank IEEE 1451.4 template You can populate the template by a file or by a DPM-3 meter. To populate by a DPM-3 meter, at the top of the screen in the Menu bar, click on Meter and then click Read.
		Populated IEEE 1451.4 template This IEEE 1451.4 template was populated via a DPM-3 meter by clicking on Meter and then read in the Menu bar at the top of the screen.
		Editing a IEEE 1451.4 template This screen shows an example of changing units from pounds to newtons. Once the template data has been edited click on Meter and then Write in the Menu bar at the top of the screen. A pop-up warning screen will then appear click on yes.
		Newly Populated IEEE 1451.4 template This screen shows the newly edited IEEE 1451.4 template.

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TEDS IEEE 1451.4 Plug and Play Smart Sensors

What is TEDS?

TEDS, or Transducer Electronic Data Sheet, is a set of electronic data in a standardized format defined within the IEEE 1451.4 standard. This data specifies what type of sensor is present, describes its interface, and gives technical information such as sensitivity, bridge type, excitation, etc.

Are TEDS sensors the same as "Plug and Play" sensors?

Yes. "Plug and Play" sensors refer to the emerging IEEE 1451.4 specification of sensors that contain calibration or configuration information in memory on the sensor. This information is normally stored in an EEPROM chip attached to a sensor. By having this chip, the sensor can identify and describe itself to the network and or Smart Load Cell Meter, thereby easing automatic system configuration. Let's say you have a Transducer Techniques Load Cell or Torque Sensor with the CAL-TEDS option. Using the proper instrument (DPM-3 Smart Load Cell Meter), any other Transducer Techniques IEEE 1451.4 enabled Load Cell or Torque Sensor could be swapped in, self-identify, and work appropriately.

What are the advantages of TEDS?

Benefits that can be experienced now include:

Simplified troubleshooting
Reduced safety risks. It is no longer necessary to "climb on machines" for connection verification
Reduced costs for set-up and tear-down
No recalibration is needed when replacing sensors
The data acquisition system can recalibrate itself

Advantages that will be available in the future include:

Integration with wireless transceivers
Elimination of large lengths of analog wiring
Reduced installation, maintenance and upgrade
costs of measurement and control systems
The opportunity to add intelligence to sensors

Can a legacy / non-TEDS sensor be converted to a TEDS "Plug and Play" sensor?

Yes. A legacy / non-TEDS sensor can be converted to a TEDS "Plug and Play" sensor. Transducer Techniques offers a CAL-TEDS service to convert your sensor to a TEDS "Plug and Play" compliant sensor. The service consists of a connector, recalibration and a programmed EEPROM. This will update a legacy / non-TEDS sensor to be capable of plugging into Transducer Techniques IEEE 1451.4 compliant DPM-3 Smart Load Cell Meter.

What is Virtual TEDS?

Virtual TEDS is an online library of data sheets developed by National Instruments (www.ni.com) that contain the same information that would be found in an EEPROM TEDS, but exist for sensors not containing the EEPROM. This would define Plug and Play capability for legacy / non-TEDS sensors. As a National Instruments Plug and Play Sensor Partner and a National Instruments Alliance Member, Transducer Techniques has contributed the data for all its sensors to the Virtual TEDS database.

What parameters are included on a Transducer Techniques TEDS chip?

TEDS Item	Values
Manufacturer ID	Transducer Techniques (ID#42)
Model Number	28
Version Letter	A
Version Number	3
Serial Number	149087
Transducer Electrical Signal Type	Bridge Sensor
Minimum Physical Value	0 lb
Maximum Physical Value	100 lb
Minimum Electrical Value	0 V/V
Maximum Electrical Value	.0024709 V/V
Mapping Method	Linear
Bridge Type	Full
Impedance of Each Bridge Element	350 Ohm
Response Time	.000001 sec
Excitation Level (Nominal)	10 V
Excitation Level (Minimum)	1 V
Excitation Level (Maximum)	12 V
Calibration Date	1/1/2004
Calibration Initials	RAB
Calibration Period (Days)	365 days
Measurement Location ID	0
Users Data	Thank You From TTI

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