XL121 - 8 channel with plug-in terminal block

The XL121 can be equipped with 8 input channels and the XL122 and XL124 with 16 input channels. Both have 16 MB internal memory as well as capacity for external storage mediums such as CF or SD card; and USB memory. The analog input section accepts DCV, Thermocouple and RTD with measurement intervals from 100ms(8 channel only), and 200ms up to 1 hour (both models). The digital input section can support 1 channel for pulse input and 2 channels for logic inputs. In addition, alarm summaries, log displays and review functions can be retained and displayed in this powerful, but compact portable data logger (weighs 28 ounces w/o battery).

All Channels adopt Universal Insulated Inputs
The channels in the analog input part adopt insulated inputs, which means that temperature (thermocouple/resistance temperature detector) and voltage can be set differently for each channel. The digital inputs are equipped with one pulse channel and two logic channels.

Best-In class Noise reduction
Datum-Y achieves excellent noise resistance rated among the best in the class of handy measuring products. With Datum-Y, stable measurement is possible in various noise environments, such as when measuring inverter-driven machines or thyristor-controlled units that are commonly used for energy-saving purposes

Data Saving at 100ms
Datum-Y saves data at the maximum speed of 100 ms (when the 8-channel terminal block is used). You can save data in either binary format or ASCII format (for display in Excel). Binary data can be checked on site in the review mode or shown in waveforms using the supplied “D-TOOL” software.

Acquisition of Large amounts of data using External Storage Media
Acquisition of Large Amounts of Data Using External Storage Media Datum-Y lets you save data not only in its internal memory (16 MB), but also in external storage media such as compact flash memory cards* and SD cards* (up to 512 MB). Data saved in these media can be copied to a USB memory* for easy transfer to a PC.
* Use compact flash memory cards, SD cards and/or USB memory whose compatibility with Datum-Y has been verified.

Trigger Function
You can use the pre-trigger/ trigger delay function, which is convenient when you detect and analyze the cause of an error. You can start to acquire data before and after a trigger for up to 600 measurements, respectively. (Pre trigger starts data acquisition before the trigger, while trigger-delay starts data acquisition after the trigger)

File Split and Media Overwrite Functions
You can split a measurement data file at a specified time (hours and minutes) while you are logging data. Furthermore, you can select the following save options: Delete and Save to delete past measurement data and create new data when the storage capacity of the destination storage media is full, Repeat Save to overwrite the old data in the file during measurement, and Stop to stop the saving. In addition, you can use the FTP function to acquire data stored in Datum-Y without stopping measurement.

Alarm System
Datum-Y can be fitted with up to four alarm output channels. One alarm can be set for each input channel, and multiple channels can be combined freely with AND/OR gates. You can also use the e-mail delivery function to notify specified e-mail addresses upon occurrence or reset of an alarm.

Auto Set & Run Function (automatic Measurement Function)
Simply connect an external storage medium (CF card, SD card or USB memory) containing a predefined file (AUTORUN.SET), and Datum-Y will change the necessary settings and take measurements automatically. (You need to enable the automatic measurement function of Datum-Y beforehand

Four Modes of connection:

• LAN
  Data-Y adopts standard protocols all network administrators familiar to with.
  Datum-Y supports standard protocols such as HTTP, FTP, SMTP and SNTP based on Ethernet connection (10BASE-T, 100BASE-TX), so no dedicated software is necessary. You can also use the user authentication function to permit access only to pre registered users, in order to prevent illegal access to Datum-Y from networks. Up to seven users (one administrator and six users) can be pre-registered.
• RS-485/RS-232
  Serial communication (RS-232, RS-485) can be performed using a dedicated protocol as well as Modbus RTU and Modbus ASCII protocols that are supported by Datum-Y’s standard capability. Datum-Y can be connected to other equipment to acquire data simultaneously with temperature/voltage. 32 dedicated communication channels are provided.
• USB
  Datum-Y connects one-on-one with a PC. You can acquire data, change Datum-Y settings or perform various other operations on Datum-Y from a PC.
• RS-232 (for Printers)
  RS-232 (Printer) You can connect a printer via RS-232 connection to print paper reports on site.

The Yokogawa XL120 series is a small, lightweight, portable data logger and data station. These portable data stations allow setting of temperature (thermocouple, resistance temperature detector) and voltage for each channel. The Yokogawa XL120 series is available with 8 input channels (with plug-in terminals) or 16 input channels (with either screw or plug-in terminals).

The Yokogawa XL120 Series Data Station:

• Periodically samples DC voltage, analog inputs such as thermocouples and RTDs, or pulse and logic inputs
• Acquires the sampled measured data in the internal memory
• Displays measured and calculated data on a LCD in the form of waveforms, digital display, and bar graphs.

The measured data can also be saved to external storage media such as CF cards and SD cards. The saved data can be loaded into the Yokogawa XL120 Series Data Station to be displayed or displayed on a PC using the accompanying software program.

By using the Ethernet Interface that comes standard with the Yokogawa XL120 Series Data Station, the measured data can be automatically transmitted to a server on a network. The Ethernet interface can also be used to retrieve the measured data saved on the Yokogawa XL100 internal memory or an external storage medium into a PC on the network.

DATUM-Y also includes one Compact Flash (CF) port, one Secure Data (SD) port, and one USB port (copy function only) for external data storage.

The XL120 series data stations from Yokogawa are designed for applications such as plant maintenance, predictive maintenance, environmental testing, and process systems where portability and rugged design are necessary. A rubber boot is included to guard against drops and other mishaps.