The D900 defies the image that all loggers are "slow" and low-tech. On the contrary, it offers fast and slow recording speeds, real ISOLATED inputs, and a built-in 5.7" color display for easy setup and data view / review. A great feature is Windows software that we include, so that you can control the system and monitor the data remotely via ethernet or USB 2.0. The software also allows you to convert the data file to Excel and TEXT formats.
- 8 dynamic analog input channels
- Real ISOLATED inputs
- Signal conditioning for voltage, thermocouples, and other sensors, selectable on each channel
- Additional tachometer input, alarm output, and more
- Includes Windows software for remote control and data transfer/conversion

Powerful data logging punch
The D900 accepts voltage, temperature, humidity, pulse and logic signals. Channel-to-channel isolation means wiring errors or overloaded channels do not affect neighboring channels. Sensors are connected via BNC inputs and screw terminals. The built-in 2GB memory is non-volatile so that data is retained even if the power supply is interrupted.
The D900 accepts voltage, temperature, humidity, pulse and logic signals. Channel-to-channel isolation means wiring errors or overloaded channels do not affect neighboring channels. Sensors are connected via BNC inputs and screw terminals. The built-in 2GB memory is non-volatile so that data is retained even if the power supply is interrupted.
- 5.7" color LCD display
- Built-in Ethernet 100Tx and USB 2.0 interfaces
- Accepts voltages, thermocouples and humidity
- Voltage input levels: 20mV to 500V F.S.
- Thermocouple input types: B, R, S, T, N, K, W, E, J
- Continuous battery charge during operation
- 256MB internal flash memory
- Includes 4 pulse logic inputs, 1 trigger input
- Includes 4 x alarm outputs
- Small footprint (232mm x 150mm x 80mm)
- Includes Windows software for setup, control, data transfer, data conversion to ASCII and Excel formats, and on-screen data review with cursors
Connections
The D900 has a BNC for each channel's voltage input … and to connect thermocouples there is a pair of M3 screw terminals built in, so that you can attach your sensors easily.

Channel setup
Using the front panel (or via computer software), simply set that input to the thermocouple mode. The channels can be used for voltages or thermocouples completely freely, in any combination. In addition, the voltage range and thermocouple type can be set freely on each of the eight channels.



Above - you can set the input type of each of the 8 channels. Or use the top "AL" fields and it will set all channels to be the same. Each channel can be set to voltage mode, thermocouples, or relative humidity.
Filter settings can be set independently for each channel. There is a line filter, as well as 5 Hz, 50 Hz, and 500 Hz low pass filter selections.
In the voltage mode, you can select ranges from 20 mV to 500V, or 1-5 V.



Above - you can set the input type of each of the 8 channels. Or use the top "AL" fields and it will set all channels to be the same. Each channel can be set to voltage mode, thermocouples, or relative humidity.
When scaling channels, you can also pick from a list of EU systems that have already been defined. No typing!
You can also SCALE any or all channels into a different unit of measurement. Simply turn on EU conversion, and then set the 2 point scaling factors.
Features
Direct capture to USB
PC software included
High-voltage input



Long-term data can be captured directly to built-in 256-MB flash memory or to an external USB memory stick at sampling intervals of from 1/ms to 1/minute. For high-speed sampling at intervals faster than 1/ms, you can write up to 1 MS/s to internal RAM.
Multiple MEASUREMENT screens are included, so that you can watch the one that best suits your data. Plus there's a REPLAY screen with Zoom function, so you can zero in on exactly the area of interest. Complete remote control and data conversion are included.
The wide 500 V range enables 100 to 240 VAC power supply voltage waveform measurements. Using logic input and a clamp meter simultaneously allows measurement of a device’s power supply voltage and current concurrently with sequential control of various points.
X-Y recorder mode
Built-in WEB and FTP
NTP time sync



In addition to the typical Y/T display, the D900 includes an X-Y mode, and even re-created pen up/pen down movement! It can be operated like an analog X-Y recorder and can also be used as a 4-pen X-Y recorder. The digital data format facilitates post-measurement confirmation of data values and report creation.
Waveform display and D900 setup operations can be performed via a typical web browser. In addition, data files captured to the D900’s internal memory or to a USB memory stick can be transferred or deleted from the PC.
Simply connect the D900 to an NTP server via an Ethernet connection to synchronize D900 time with NTP server time at periodic intervals.
Options

Software
Real time and post-acquisition software included
Three measurement screens are provided to allow selection of the screen that best suits measurement needs.
The Replay screen provides a Zoom screen feature to enable enlarged display of specific sections of long-term measurement data.
Three measurement screens are provided to allow selection of the screen that best suits measurement needs.
The Replay screen provides a Zoom screen feature to enable enlarged display of specific sections of long-term measurement data.

Convenient functions
These convenient functions are built in:
Direct to Excel function
This function enables measurement data to be written directly to an Excel file.
Search function
This function enables searching for specific values in the captured data.
CSV batch conversion function
This function enables batch conversion of multiple captured files to CSV file format.
Thumbnail function
This function enables display of captured data files as thumbnails.
These convenient functions are built in:
Direct to Excel function
This function enables measurement data to be written directly to an Excel file.
Search function
This function enables searching for specific values in the captured data.
CSV batch conversion function
This function enables batch conversion of multiple captured files to CSV file format.
Thumbnail function
This function enables display of captured data files as thumbnails.

Simple operation for everyone.
Icons across the screen make it easy and graphical to find the function that you need.
Icons across the screen make it easy and graphical to find the function that you need.

Specifications
Please click the D900 brochure below to see all of the specifications.
Downloads
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Phone: +1 401-284-3750 | Toll-free USA: +1 877-431-5166 | Fax: +1 401-284-3755
For application support: support@dewamerica.com | For service issues: service@dewamerica.com | For sales topics: sales@dewamerica.com
Phone: +1 401-284-3750 | Toll-free USA: +1 877-431-5166 | Fax: +1 401-284-3755
For application support: support@dewamerica.com | For service issues: service@dewamerica.com | For sales topics: sales@dewamerica.com
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DEWETRON itself is backed up by companies with more than $1B in assets, so we have the resources to support you. At DEWETRON, data acquisition is what we do - and it’s all we do. When you partner with us, you're in strong hands.
DEWETRON itself is backed up by companies with more than $1B in assets, so we have the resources to support you. At DEWETRON, data acquisition is what we do - and it’s all we do. When you partner with us, you're in strong hands.
WHO IS DEWETRON?
We design and build DATA ACQUISITION INSTRUMENTS. Our solutions are considered best of breed in the field of physical measurement from sensors like strain, acceleration, temperature, force and many more. Our SYNC CLOCK technology allows additional data from a wide variety of interfaces (VIDEO, ARINC, 1553, GPS, CAN, IRIG…) to be recorded in perfect sync with the analog and digital data.
We design and build DATA ACQUISITION INSTRUMENTS. Our solutions are considered best of breed in the field of physical measurement from sensors like strain, acceleration, temperature, force and many more. Our SYNC CLOCK technology allows additional data from a wide variety of interfaces (VIDEO, ARINC, 1553, GPS, CAN, IRIG…) to be recorded in perfect sync with the analog and digital data.
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