[중고] GRAPHTEC GL840M 데이터로거 (20ch) 그라프텍 midi logger

Model number

GL840-M

GL840-WV

Number of analog input channels

20 channels in standard configuration, Expandable up to 200 channels

Number of analog input terminals

Up to 10 terminals (20 channels / terminal), standard config: 1

Type of analog input terminal

Multi-input type, Withstand-voltage type

Port for digital sensor

1 port for the sensor/input terminal/adapter of the GL100

External input/
output *1

Input *2

Trigger or Sampling (1 channel), Logic/Pulse (4 channels)

Output *3

Alarm (4 channels)

Sampling interval

10 ms to 1 hour (10ms to 50ms: voltage only) *4, External signal

Time scale of waveform display

1 sec. to 24 hour /division

Trigger,
Alarm function

Trigger action

Start or stop capturing data by the trigger

Repeat action

Off, On (auto rearmed)

Trigger source

Start: Off, Measured signal, Alarm, External, Clock, Week or Time
Stop: Off, Measured signal, Alarm, External, Clock, Week or Time

Condition Setting

Combination: OR or AND
Analog signal: Rising (High), Falling (Low), Window-in, Window-out
Logic signal: Pattern (combination of each input signal in high or low)
Pulse (number of count): Rising (High), Falling (Low), Window-in, Window-out

Alarm output

Outputs a signal when alarm condition occurs in the input signal *5

Pulse input
function

Rotation count
(RPM) mode

Counts the number of pulses per sampling interval and converts to rpm
(rotations per minute), Number of pulses for one rotation can be set to
50, 500, 5000, 50k, 500k, 5M, 50M, 500M rpm/F.S. (rpm./Full Scale)

Accumulating
count mode

Accumulates the number of pulses from the start of measurement
50, 500, 5000, 50k, 500k, 5M, 50M, 500M C/F.S. (Counts/Full Scale)

Instant count
mode

Counts the number of pulses per sampling interval
50, 500, 5000, 50k, 500k, 5M, 50M, 500M C/F.S. (Counts/Full Scale)

Calculation
function

Between channels

Addition, Subtraction, Multiplication, and Division for analog input

Statistical

Select two calculations from Average, Peak, Maximum, Minimum, RMS

Search function

Search for analog signal levels, values of logic or pulse or alarm point
in captured data

Interface to PC

Ethernet (10 BASE-T/100 BASE-TX), USB (Hi-speed), WLAN (using B-568 option)

Storage
device

Media

SD memory card (Support SDHC, up to 32 GB), supports 2 slots *6

Saved contents

Captured data, Setting conditions, Screen copy

Capturing mode

Mode: Normal, Ring, Relay
Ring: Saves most recent data (Number of capturing data: 1000 to 2000000 points) *7
Relay: Saves data to multiple files without losing data until dada capturing is stopped

Replay data

Replays captured data that was saved in the GL840 (in GBD or CSV format)

Scaling (Engineering unit) function

Measured value can be converted to specified engineering unit
• Analog voltage: Converts using four reference points (gain, offset)
• Temperature: Converts using two reference points (offset)
• Pulse count: Converts using two reference points (gain)

Action during data capture

• Displaying past data (using dual display mode (Current + Past data))
• Hot-swapping the SD memory card
• Saving data in between cursors

Display

Size

7-inch TFT color LCD (WVGA: 800 x 480 dots)

Language

English, French, German, Chinese, Korean, Russian, Spanish, Japanese

Information *8

Waveform in Y-T with digital values, Waveform only, Digital value, Digital values
and statistics values

Operating environment

0 to 45 ºC, 5 to 85 % RH (non condensed)
(When operating with battery pack 0 to 40 ºC, charging battery 15 to 35 ºC)

Power source

AC adapter

100 to 240 V AC, 50/60 Hz (1 pc of adapter is attached as standard accessory)

DC power

8.5 to 24 V DC (DC drive cable (option B-514) is required)

Battery pack

Mountable two battery packs (battery pack (option B-517): 7.2V DC, 2900mAh)

Power consumption *9

Max. 38 VA

External dimensions (W x D x H
in mm, Excluding projections

Approx. 240 x 158 x 52.5

Approx. 240 x 166 x 52.5

Weight *10

Approx. 1010 g

Approx. 1035 g