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CDPMW (WIFI) Programmable Panel Meter
 by Versalent   Home

         Monitors system processes remotely
(Also available with wired RS232 and RS485 interfaces)

General Description

The CDPMW (configurable WIFI digital panel meter) provides a full 4-digit LED meter that is
unlike other low cost meters. Measurement scaling is factory calibrated and is separate from
user-set display scaling, providing a very versatile meter that can show the measurement
in any units.
(A 0-200mv meter can display 0 to 200, or 0 to up to 9999.) DPM4 system diagram Because it is wifi-enabled it can transmit this measurement to an http client (browser or other) on site or around the world. From the factory it is scaled to display its measurement in volts and operates autonomously out-of-the-box like other meters.

The programmable 8-decimal-digit scaling factor eliminates the need for analog pot adjustments, and with the programmable display offset, this meter can convert any of the available input ranges to ANY display range. Each CDPMW has a fixed voltage input range (available ranges below) with display scaling/offset factors then applied to the display only. For instance, an input of 0 to 10V (or any portion of that range), can be displayed as 0 to 8500, or -5000 to +9000 allowing it to show actual gallons in a tank, or temperature in oC/K/F -- not just volts like other meters. View CDPMW Characteristics   No manual volts-conversions or offsets required to translate to physical units! The CDPMW does it all. And .. that scaling/offset can even be dynamically changed in an instant.

Note: For wifi access the network SSID and PASSWORD must be set -- although the meter operates without wifi as well. Once network connection is established, the Versalent CDPMW Command Tool (a web page application) can load the scaling/offset factors and manage other settings. Command responses returned as an html page with <DATA>..</DATA> tags enclosing the value returned for easy extraction by non-browser clients.

 
Advantages Over Conventional Panel Meters
  • VERSATILE -- Conventional meters offer pot-adjustment for scaling with no adjustable offset. CDPMW provides programmable (no pot) digital scaling AND display offset resulting in a meter that can accept ANY input range and produce ANY display output from -9999 to +9999.

  • EXTENDED RANGES -- Excellent offset specs (factory digital calibration) allow for 50mv and 100mv ranges while typical meters offer 200mv minimum

  • DYNAMICALLY REPROGRAMMABLE -- Once adjusted, conventional meters are fixed and display a single scale. CDPMW is dynamically reprogrammable so scaling can be changed from lbs to grams, and the display is dimmable and flash-able.

  • REMOTELY ACCESS METER READINGS -- Conventional meters do not transmit their measurements. As a process meter, CDPMW can be remotely querried by any http client to monitor and react/alarm/log process values.

  • SMALL SIZE -- CDPMW is 1.9" X 1.1" X 1.4" making it small enough to replace existing meters, or fit inside a product enclosure. Panel cut-out 1.82" X 1.04" .

  • CDPM Simulator lets you test-drive.
Detailed Description

Configuration:
The wide-ranging flexibility of CDPMW uses the CDPM Simulator web-page simulator -- to generate the scaling/offset factors needed. User input is reduced to entering a few simple values: the signal input range and the desired meter readings for this range. The CDPMW Command Tool can load the factors to make your display do it!.

Advanced Features

Dynamic Meter Changes:
Multiple configurations can be generated by the simulator and stored by a host which can then alter the CDPMW scaling dynamically. For instance CDPMW can change from showing pounds to kilograms, and short configuration messages make the meter change in milliseconds.

Display Effects:
The CDPMW display can be dimmed with 8 brightness levels and/or flashed. On command it can also show cryptic text messages using the limited characters which a 7-segment display can show .. like Err9 . See the character list in the manual.
Full Manual           CDPMW
Desktop CDPMW Command ToolMobile CDPMW Command Tool
CDPMW is factory-configured to accept a specific signal input range. Select the closest input range that encompasses the expected signal range for best measurement resolution. (For a signal of 0-8V, a 0-10V meter provides better measurement resolution than a 0-20V meter.)

Available CDPMW Meter Input Ranges
Range # Unipolar Input Range
0 0.0 to +50mv
2 0.0 to +100mv
4 0.0 to +200mv
6 0.0 to 1.0V
8 0.0 to 2.0V
10 0.0 to 5.0V
12 0.0 to 10.0V
14 0.0 to 20.0V
16 0.0 to 50.0V
18 0.0 to 100.0V
20 4mA to 20mA
Range # Bipolar Input Range
1 -50mv to +50mv
3 -100mv to +100mv
5 -200mv to +200mv
7 -1.0V to +1.0V
9 -2.0V to +2.0V
11 -5.0V to +5.0V
13 -10.0V to +10.0V
15 -20.0V to +20.0V
17 -50.0V to +50.0V
19 -100.0V to +100.0V
- -

Model Number Format:
    CDPMW-P-R   (P=5 or 9, .. R = 1 or 2 digit input voltage Range# from the table above)

Specifications

Power Input:  5V models, or 9-24V (typical 120ma @ 9V, 45mA @ 24V)
Display:  4-digit LED, .36" high, brightness programmable to 8 levels
Accuracy:  ranges 200mv and higher = 0.25%, below = 0.35%
Display Range:  -9999 to 9999 all ranges
Input Resistance:   > 1Meg ohm all voltage ranges, 100 ohm for 4-20mA
Scale/Offset Factors:  8 digit decimal
Dimensions:  1.9" X 1.1" X 1.3"
Connections:  3.5mm screw terminals
Storage Endurance:  non-volatile memory cycles = 100k
Receive Sensitivity:  -88dBm
Transmit Power:  19.5dBm
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