Multi-Channel Datalogger with Color Display
- Graphtec America - GL840
- Extended memory capacity using SD memory card
- Max sampling interval up to 10ms
- Smartphone access
Datalogging for High Voltage Monitoring
Multi-Input Unit |
Withstand High Voltage Unit |
Expandable up to 200 channels
Standad configuration has 20 analog input channels. lt is expandable to 200 channels by adding the optional 20 channel extension terminal base unit (B-566) and input terminal units (B-564 or B-565).
The following shows how a standad configuration is expanded to a 40 channel configuration.
| Input Terminal Unit Types | GL840-M I Multi-input (B-564) | GL840-WV I Withstand-Voltage (B-565) | |
| Voltage | Input Voltage Range | 20 mV to 100V | 20 mV to 100V |
| Max. Voltage (input - GND) | 60 Vp-p | 300 Vp-p | |
| Temp. | Thermocouple | R, S, B, K, E, T, J ,N, W (WRe5-26) | |
| RTD (Resistance Temp. Detector) | Pt100 (IEC751),JPt100 (JIS),Pt1000 (IEC751) | ||
| Accuracy | Voltage | ± 0.1% of F.S. | ± (0.05% of F.S. + 10pV) |
| Temperature | ± 1.55 °C | ± 1.1 °C | |
| Features |
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| Accommodates a wide variety of measurements |
| Multifunction analog input ports |
| Contains a highly isolated input mechanism which ensures that signals are not corrupted by noise from other channels. The GL840 inputs are suitable for combined measurements from voltage, temperature, humidity, logic, and pulse signals. |
| 4 channels of Logic/Pulse inputs |
| Supports 4-channel logic or pulse signal inputs. Pulse mode allows cumulative, instant, or rotational values for industrial measurement capability with speed and flow. |
| Large easy-to-read 7-inch wide color LCD |
| Carries a clear 7-inch wide TFT color LCD screen (WGA: 800 x 480 dots) for the GL840, and 4.3-inch wide LCD screen Monitoring data are displayed in waveform or digital form option. Parameter settings can be displayed on the screen. |
| GL840 Main unit specifications | |||
| Model | GL840-M | GL840-WV | |
| Number of analog input channels | 20 channels in standard configuration, Expendable 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, Withstands-voltage type | ||
| Port for digital sensor | 1 port for the sensor/input terminal/adapter of the GL100 | ||
| External input/output | lnput | Trigger or Sampling (1channel),Logic/Pulse (4 channels) | |
| Output | Alarm (4 channels) | ||
| Sampling interval | 10 ms to 1 hour (10 ms to 50 ms: voltage only),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 | Output a signal when alarm condition occurs in the input | ||
| Pulse input function | Rotation count (RPM) | Counts the number of pulses per sampling interval and converts to rpm (rotations per minute),Number of pulses for one rotation may be set to 50, 500, 5000, 50k, 500k, 5M, 50M, 500M rpm/F.S. (rpm./Full Scale) | |
| Accumulating count | Accumulates the number of pulses from the start of measurement 50, 500, 5000, 50k, 500k, 5M, 50M, 500M C/F.S. (Counts/Full Scale) | ||
| lnstant count | 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 | ||
| lnterface to PC | Ethernet (10 BASE-T/100 BASE-TX) , USB (Hi-speed),WLAN (using 8-568 option) | ||
| Storage device | Media | SD memory card (Support SDHC, up to 32 GB),supports 2 slots | |
| Saved contents | Captured data, Setting conditions, Screen copy | ||
| Capturing mode | Mode: Normal, Ring, Relay Ring: Saves most recent data (Number of captured data: 1000 to 2000000 points) Relay: Saves data to multiple files without losing data until data capturing is stopped | ||
| Replay Data | Replays captured data that was saved in the GL840 (in BGD or CSV format) | ||
| Scaling (Engineering unit) function | Measured value can be converted to the 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 parst 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 | ||
| lnformation | Waveform in Y-T with digital values, Waveform only, Digital value, Digital values and statistics values | ||
| Operating environment | 0 to 45°C, 5 to 85 % RH (non condensed) (When operating with battery pack 0 to 40°C, charging battery 15 to 35°C) | ||
| Power source | AC adapter | 100 to 240 V AC, 50/60 Hz 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 battery pack (battery pack (option B-517): 7.2V DC, 2900mAH) | ||
| Power consumption | 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 | Approx. 1010 g | Approx. 1035 g | |
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