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The main unit of the DC100 with optional MATH feature can perform the fourarithmetic operations, integration of measured data, and computations such as detection of maximum and minimum values, in real-time. Even without the optional feature, the DC100 can compute linear scaling, difference and moving average. The results of such computations are transferred with the measured data to a PC, thus reducing system requirements on the PC and also resulting in more efficient analytical processing.
The main computing functions are as follows. (The shortest computation period differs depending on the kind of computation.)
Standard computing functions.
Linear scaling, moving average, differential calculation, pulse integration (when a pulse input module is recognized).
Optional functions
The four arithmetic operations, logic operations, related operations, calculation of absolute and relative values, and statistical calculations (maximum, minimum, mean, and integrated values for fixed intervals)
Moving average function
This function updates the measured value while calculating the moving average, thus effectively monitoring the trend of a varying input signal over a long period. It can also be used as a digital filter when noise components are present on the input signal. You can set the number of moving average scans by selecting a value between 2 and 64.
Data Acquisition and Recording Method
The sophisticated memory of the DC100 can store measured data at the same time as transferring the data to a PC. If it is used for continuous data acquisition and recording with an external medium, the measured data stored in the PC can be saved on the external medium so that data can be backed up continuously.
The DC100 inherits the portability of PC-based data loggers and the data acquisition and recording method of systems based on computerized databases.
The DC100 is the perfect choice ...
When changing the data-recording media from paper to memory to maximize the usefulness of the data and yet minimize cost.
When data in the field needs to be monitored at the same time as acquiring and recording it using a personal computer.
When errors might occur during on-line data acquisition and recording using a PC or to make a backup of data in case of a power failure.
For unattended data acquisition and long-term recording without or with a personal computer.
For vehicle-mounted tests which require portability and for data measurement during transportation.
For troubleshooting power facilities, distribution panels and heavy machinery.
Monitoring/setting functions
The DC100 comes with a large 3-line VFD display (22 large characters x 1 line and 40 small characters x 2 lines), allowing you to recognize data easily, even from a distance. The DC100 is operated interactively through various guidance displays for making settings, making full use of this VFD display. And the key layout is designed for true ease of use and rapid, error-free operations.
Easy-to-identify Operation Keys
START, STOP: Starts and stops the writing of measured data to the memory.
FD COPY:Copies the data file in the main memory to the floppy disk.
M. FUNC: The user can assign the desired action-control function to this.
DISPLAY, MODE: Selects the display line in the VFD and selects the display item on the selected line.
CLOCK: Sets the date and time.
RANGE: Sets up the input range of each channel or each group.
ALARM: Sets up the alarm function for each channel or each group.
SET: Sets up the measurement conditions (e.g., moving average, calculation, event/action, and unit settings).
FUNC: Sets up the operation conditions (e.g., calculation start/stop and keylock on/off settings).
MEM SET: Sets up the memory (e.g., number of divisions of the memory, data length setting, and storage method) |
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- 10 to 300 isolated inputs
- Measurement interval: As low as 0.5 sec.
- Flexible inputs: DC Voltage, Thermocouples, RTDs, mAmps, AC Voltage/Current, Strain, Pulse
- Versatile Memory
- 3.5” FDD std.
- Power Source: 90 to 250 VAC, 10 to 30 VDC (optional)
- Direct PC connection via GPIB, RS-232C or RS-422/485
- Weight: Approx. 10 lbs.
- Flexible Expandability
From 10 to 300 channels, the DC100 can be flexibly modified and expanded. It handles a variety of input signals such as DC voltages, thermocouples, RTDs, contacts, power monitors, pulses, strains, and DC currents (mA).
- Dependable Durability
Durability against harsh environments is assured by Yokogawa's unique technologies such as the planar transformer and high-breakdown-voltage solid-state relay. The DC100 also complies with various international safety standards.
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Effective Data Processing
The various memory functions (memory size: 1, 2, or 4 MB: specified when ordering) allow effective data acquisition and recording. Data can be transferred to a personal computer while making a backup in the memory. The standard features include a 3.5-inch floppy disk drive and DAQ 32 software.
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External Mass Storage Interface (/C5, option)
The external mass storage interface (SCSI) option is a communication interface for saving files created in the DC100 internal RAM to the MO/Zip/Jaz/PD disk.
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Report Function (/M3, option)
Report files can be created hourly, daily, monthly or at designated time/date independently.
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Complete Application Software
In addition to Yokogawa's original software packages such as InTouch for DARWIN and DARWIN DAQ 32, a huge range of software packages for DARWIN as well as driver software such as LabVIEW, and FixDmacs can be used.
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The DC100 features a large display with a whole range of functions, allowing you to monitor data while storing them in memory. With it's sophisticated memory, the DC100 offers simple data acquisition and recording in a single device, yet it's still fully portable and packed with features. No PC needed. No chart paper. No environmental impact. A cost-effective solution to your measurement needs. |
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The DC100 Stand-alone model weighs just 5 kg with the full four I/O modules installed. In addition, since its depth is just 20 cm with modules (10 cm without modules), you can take it anywhere with ease.
With its advanced memory functions, the DC100 stand-alone model offers simple data acquisition and recording by combining the functionality of hybrid recorders and PC-based data loggers, yet offers superb portability and mobility, environment-friendly operation without PC or chart paper, and cost-effective, flexible data measurement.
- Measuring interval: 500 ms/40 channels minimum
- Number of input channels:
10 to 40 channels. Various I/O modules are directly connected to the main unit.
- Portable, Compact
The DC100 stand-alone model weighs just 5 kg with the full four I/O modules installed. In addition, since its depth is just 20 cm with modules (10 cm without modules), you can take it anywhere with ease. It's small enough to be placed on the center console box of an automobile ... in fact, there's almost no limit to where you can use it, whether indoors or outdoors.
- AC V and DC V powered models available.
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The DC100 expandable model is a next-generation data collector that can evolve to suit changing business needs. Select from the wide range of I/O modules and communication modules and install them yourself -- this is true design flexibility. The I/O channels can be expanded and modified according to your needs. This not only allows you to build up a data acquisition and recording system as your application needs grow, but the architecture also requires less initial investment.
- Measuring interval:
500 ms/300 channels minimum
- Number of input channels:
10 to 300 channels. Expansion and modification via subunits.
- Expandability:
Up to six subunits can be connected to the main unit. The cable length between the main unit and subunits can be extended up to 500 m.
- AC V and DC V powered models available.
- Flexible, Distributed, Remote Data Acquisition and Recording System
The DC100 expandable model consists of a main unit, subunits, input/output and communications modules. By connecting the main unit to multiple subunits with the dedicated cable of up to 500 m total length, you can easily configure a recording/data acquisition environment ranging from 10 to 300 channels. Another key feature is its ability to scan up to 300 channels every 500 ms. You can also install one subunit on the back of the main unit of the hybrid recorder.
- Main Unit (DC100-2)
Data are measured by the various input modules installed in the distributed subunits and are acquired and stored into the memory of the main unit. Or, by dividing the memory into multiple data files of specified data lengths or of identical sizes, the measured data can be acquired and stored in a data file while transferring another data file to an external memory device.
Furthermore, by connecting a communication module such as the GP-IB, RS-232C, or RS-422A/485 module, data can be transferred in real-time to a PC at the same time as they're being captured into the DC100 memory.
- Subunit (DS400 or DS600, for DC100 expandable model)
A subunit acts as an interface for connecting the main unit of the DC100 expandable model to one or several input modules. There are two types of subunits, the DS400 which permits connection of up to four input and output modules, and the DS600 which permits connection of up to six input and output modules.
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| Model |
Data collector DC100 |
| Stand-alone model |
Expandable model |
| Features |
Integrated construction up to 40 channels.
Portable and suitable for small-scale data logging. |
Expandable up to 300 channels.
Connecting subunits to the main unit allows multi-channel measurement with a minimum amount of wiring. |
Number of input channels
Expansion, change |
10 to 40 channels; Channels can be added in increments of 10 channels, and the types of modules are interchangeable. |
10 to 300 channels; Channels can be added in increments of 10 channels, and the types of modules are interchangeable. |
| Input types |
Voltage, temperature, contact, power, strain, pulse, direct current (mA) |
| Main unit I/O connections |
Input modules; Communications module; DI/DO module; Alarm output module |
(Input module connected to the subunit); Communications module; DI/DO module; Alarm output module |
| Subunit connections, and remote measurement distance |
Not applicable |
Up to six subunits can be connected;500 m max. |
| Subunit I/O connections |
Not applicable |
Input module; Alarm output module; DI/DO module |
| Extension module |
Not applicable |
Available |
| Maximum scanning speed |
0.5 s/all channels |
0.5 s/all channels |
| Alarm contact output modules |
Main unit: 10 to 30 points |
Main unit: 10 to 30 points
Subunits: 10 to 300 points |
| Mathematical operation channels |
max. 30 channels |
max. 60 channels |
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- The DC100 utilizes long RAM memory (1 MB standard, 2 or 4 MB optional) to provide simplified, low cost, low maintenance, data acquisition and recording without needing a PC, hard disk, paper charts or pens.
- "Single memory" - using the entire memory as one data file
Data acquisition and recording are performed with the entire memory used as a single data file. Simply pressing the START key starts data acquisition and recording until the specified length of data has been recorded.
- "Repeat memory" - continuous data saving
The memory is divided into multiple data files for data acquisition and recording. When the first file becomes full, the next file is selected automatically and used to record data without interruption. There are two ways of dividing the memory.
- Dividing the entire memory into 2, 4, 8, or 16 files of identical size
Example: When dividing into four files
- Dividing the entire memory arbitrarily by specifying the data length of each file,
Example: When making a file of 1 MB
- "Rotary memory" - automatically deleting and updating the old file
When all the divided data files become full, the data file containing the oldest data is automatically updated with new data and data acquisition and recording continue.
- Continuous data acquisition and recording using external medium
- When performing data acquisition and recording with the divided memory, a full file of recorded data can be transferred to a floppy disk while data acquisition and recording continues with the next file. The data file which was copied to the floppy disk is then updated and will be used for recording new data.
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