GRAPHTEC GL840 - 4.2 Function Specifications

4-8
CHAPTER 4 Specication
4.2 Function Specications
Function Specications
Item Description
Display screen Waveform + Digital screen, All Waveform screen, Digital + Calculation Display
screen, Expanded digital screen, Integrated bar graph screen
* Can be switched using the dedicated key (toggle operation)
* For the Expanded Digital screen, the number of channels and the display channel
must be specied
* The waveform is not rewritten due to the change of the TIME / DIV.
Sampling interval 10 ms/1 ch maximum (GBD/CSV-formatted)
10, 20, 50, 100, 125, 200, 250, 500 ms; 1, 2, 5, 10, 20, 30 sec.;
1, 2, 5, 10, 20, 30 min.; 1 hour; External
* The settings of 125 ms or below can be used depending on the input settings and
the measuring channel.
EU (scaling function) • 4 points can be set for each channel
• The temperature range scaling function is available.
Functions during capture • Conrmation of the captured data
• Saving of data between cursors
• Replacement of the SD CARD
Data save function Capture destination: Internal memory (SD1) or SD CARD (SD2)
Captured data: Settings, Screen data, Measurement data, Integrated bar graph data
(page)
Capture function Function: OFF, Ring recording, Relay recording
Ring recording Number of recording points: 1000 to 2000000
* When ring capture is ON, the memory space that can be used for capture is one-
third of the free space or less.
Relay recording Relay capacity : 100MB to 2000MB
Relay time : 1 hour 00 minute to 24 hours 00 minutes
The captured data is continuously captured by les separated in the set relay unit
without losing data.
Replaying data GBD/CSV-formatted data le (only data captured in this GL840)
Calculation between CHs Calculation type: Four arithmetic operations (+, -, ×, ÷)
Target input: Analog CH1 to CH200
GS sensor and terminal/adapter: CH1 to CH8
Wireless sensor: CH1-1 to CH5-8
Statistical calculation Statistical calculation type: Average value, peak value, maximum value, minimum
value, root mean square value
Number of calculations: Two arithmetic operations can be set to each channel.
Calculation method: Real-time calculation and specied between cursors (during
replay)
* Real-time calculation results are displayed on the Digital screen + Calculation
Display screen.
Search functions Function : Search the captured data for the required number of points
Search type : Channel, Pulse, Logic, Level, Alarm search
Annotation input function Function : A comment can be entered for each channel
Input table characters : Alphanumerics
Number of characters : 31
(The number of characters can be displayed on the screen is up to eight characters.)
Navigation function Easy capture measurement, easy trigger setting, wireless LAN setting functions
Trigger/Alarm Functions
Item Description
Repeat Trigger Off, On
Trigger types Start: Data capture starts when a trigger is generated.
Stop: Data capture stops when a trigger is generated.
Trigger conditions Start: Off, level, alarm, external, time
Stop: Off, level, alarm, external, time
Alarm judgment modes Combination: Analog, Logic or "AND" / "OR" of pulse
Analog judgment: H ( ), L ( ), Window In, Window Out
Logic judgment: Pattern
Pulse judgment: H ( ), L ( ), Window In, Window Out