SIMULTANEOUS SAMPLING
GL980 utilizes simultaneous sampling to eliminate slowdown in sampling rate by using multiple A/D converters in simultaneous sampling method. Eight individual A/D converters in each channel sustains the maximum sampling speed for all eight channels to measure high speed rapid voltage fluctuation and multi-channel vibration measurement.
Sampling interval: 1 µs to 1 min (in steps of 1, 2, 5)

EXTERNAL SAMPLING FUNCTION
Sampling of the logger is performed in sync with an external device using an external signal input.
Maximum input frequency: 100 kHz

* B-513 Input/Output cable for GL is required.

MULTIFUNCTION INPUT

Voltage, temperature, humidity, logic and pulse measurements can all be taken simultaneously in high speed.

MEASURE REPETITIVE WAVE FORMS SUCH AS VIBRATION WITH INSTANTANEOUS VALUE AND EFFECTIVE VALUE

Measures either instantaneous value or effective value (RMS).  By utilizing the trigger feature to measure abnormal spikes in the continuous waveform, users can measure vibration abnormalities repeatedly.

MEASURES ABNORMALITIES IN A REPEATED WAVEFORM BY EFFECTIVELY MEASURING THE CORRESPONDING RMS VALUE

All RMS measurement range with Crest Factor: up to 2

SCALING (ENGINEERING UNIT) FUNCTION

Measured voltage value can be converted to a specified engineering unit. The value can be displayed with the physical measurement value of the sensor and be saved into the data file with the converted values.

CALCULATION FUNTION BETWEEN CHANNELS

our arithmetic operations (Addition, subtraction, multiplication and division) are available using two analog input channels.
* Data can be saved only in GBD file format.

 Example

CH2 = CH3 * CH1
(CH2 is a value obtained by multiplying the values of CH3 and CH1)
* Value of calculated results are displayed and saved into data file.

TRIGGER FUNCTION

The trigger in this unit has multiple functions including level trigger of input signal value for each channel.

 Trigger action

Start or stop capturing data by triggering

 Trigger source

Off, Measured signal level, Alarm, External, Scheduled time, Scheduled day, Elapsed time
* When trigger is used for starting action, level of measured signal can be set for each channel.

 Threshold

Analog input: High or Rising, Low or Falling, Window-in, Window-out
Logic input: H or L (4-channel signal pattern)
Pulse input: High or Rising, Low or Falling, Window-in, Window-out
Combination: Level OR, Level AND, Edge OR, Edge AND

ALARM FUNCTION & SIGNAL OUTPUT

Threshold of an alarm can be set for each channel. When an alarm is triggerred notification is sent by following methods.

Alarm threshold

Analog input: High, Low, Window-in, Window-out
Logic input: H or L (signal in each channel)
Pulse input: High or Rising, Low or Falling, Window-in, Window-out

When alarm is detected

• Display to screen (Digital value of alarm's origin channel is displayed in red)

• Save alarm information to measurement data file

• Output alarm signal
  Number of channel: 4 channels (Output channel can be arranged to each source channel in OR condition.)
  Signal type: Open collector (pull-up to 5 V with 10 kΩ resistor), maximum load is the 24 V and 100 mA.
  * Requires Input/Output cable for GL series (B-513 Option).

Y-T WAVEFORM MONITOR SCREEN

Displays data with analog waveform and digital value. Screen can also be split into 1, 2, 4 or 8 zones to display the channels in different zones.

DIGITAL MONITOR SCREEN

Displays current data in digital value and results of real time statistical calculation. (Function: Maximum, Minimum, Peak-to-peak, and Average)
When displays only current data, it can be shown in 1, 2, 4 or 8 zones.

PAST WAVEFORM MONITOR SCREEN

Display the past part of the data while capturing data. Execute without stopping measurement and also scroll past data. Data screen can be switched with past and current.

XY GRAPH MONITOR SCREEN

Emulates the classic XY chart recorder. Also supports features for pen up/down and position movement.

Carrying Case (B-581)
Portable case to store GL980 and signal input cable for easy handling.

Cover
Protect the main body from cosmetic damages and minor impacts. GL980 is shipped with cover attached.
* The cover is not to protect from hard impact.

Long term recording is made possible with 4 M samples/ch built-in RAM and 4 GB built-in Flash memory. It supports both USB Flash memory and SD Card memory to be used as external storage devices for recorded data for certain sampling intervals.

Approximate recording time
■ 8 channels of analog input.
■ Data is saved as a GBD file.

MEMORY DIVISION FUNCTION

Built-in RAM can be divided into 1, 2, 4, or 8 blocks with multiple high-speed recording measurement using the trigger function.

SINGLE BLOCK
When multiple measurements are executed, the captured data is overwritten in memory block 1.

DIVIDED INTO 8-BLOCKS
When multiple measurements are executed, recorded data is stored in the next memory block.

AUTO SAVE FUNCTION

Recorded data saved in a built-in RAM is automatically copied as data file to a built-in Flash memory, SD Flash memory card or USB Flash memory with auto save function. An SD Flash memory card or a USB Flash memory can be used as a backup location when using the built-in RAM. The process will prevent losing any data captured in the built-in RAM by any overwrite or power cycles.

RING MODE

Saves most recent data of specified number after recording stops.

Number of capturing data  1000 to 10000000 data
* When using built-in RAM, 10 to 4000000 data

DATA BACKUP / HOT SWAPS

The recorded data can automatically save to other storage device at specified regular intervals during data capture. (Maximum sampling speed: 1 kS/s (interval 1 ms) with GBD format, 100 S/s (interval 10 ms) with CSV format)
When the backup destination is set to a SD Flash memory card or a USB Flash memory device, memory device can be exchanged before the memory capacity becomes full using the key operation.

SEARCH FUNCTION

The search function can locate a specific value within the captured data as well as finding abnormal values within data of a long-recorded file.

Search content
Search for analog signal levels, logic signal pattern, pulse signal levels or alarm point in captured data. 

Analog signal channel: Signal levels in each channel
・Search mode: raising, falling, window-in, window-out
Logic signal channel: Signal level (H or L) in each channel
Pulse signal channel: Signal levels in each channel
・Search mode: raising, falling, window-in, window-out
Alarm: Alarm detected point on selected alarm signal output channel