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330-668-1444
- Includes a GL240 data logger, an AC adapter, and software on CD (Ship to USA only)
- 10 analog input channels
- Programmable per channel
- ±20 mV to ±100 V over 12 ranges
- Supports direct-connected thermocouples of any type
- Full isolation per channel
- 4 discrete input channels
- Programmable as a group as logic or pulse inputs
- Pulse inputs support counter or frequency inputs
- 4 discrete alarm outputs
- Optional WiFi wireless operation
- Flexible triggering
- Built-in, 4.3-inch color display
- Built-in Web server operation for remote operations
- Removable SD memory support up to 32 GB capacity
- Includes 4 GB of internal non-volatile memory
- Operates either stand-alone or PC-connected
- PC-side software included
- Factory-calibrated. NIST-traceable certificates available in Accessories tab
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Description
GL240 Voltage and Thermocouple Data Logger system features 10 isolated analog input channels, 4 discrete inputs, and 4 discrete outputs with extremely flexible triggering conditions. Use the GL240 either stand-alone with a built-in battery compartment or pc-connected via the USB port.
Model GL240 is a third-generation data logger product with exceptional price/performance featuring 10 analog channels augmented by four discrete inputs and outputs. The discrete inputs can be configured as a group to be either logic inputs or pulse inputs. When configured for pulse, each of the four channels can be configured to measure frequency or to count. The four discrete outputs are alarms that can be triggered by a variety of easily-defined analog and pulse/discrete input channel conditions. The analog input channels may each be configured to measure a direct-connected voltage in the range of 20 mV to 100 V full scale across 12 ranges, or for a direct-connected thermocouple of any type to measure temperature. Each of the GL240’s analog input channels is electrically isolated from other channels and from power ground allowing off-ground measurements using shunts, as well as powered or grounded thermocouples.
The most powerful GL240 feature is its triggering flexibility. Data recording can be independently started or stopped as a function of analog and pulse/discrete signal level (single or windowed), alarm, date and time, and day-of-the-week. Triggers can also be configured to operate only once, or to automatically repeat. The ability to of the GL240 to adapt to virtually any desired trigger condition allows the instrument to operate unattended for long periods of time with complete autonomy.
The GL240 operates either connected to a PC or entirely stand-alone. Connection to a PC may be over a standard USB or optional wireless connection. Either connection approach may take advantage of supplied PC-side software to configure, acquire, display, and record digitized information for storage directly to the PC’s HDD. Acquired data may be retrieved for review and analysis after recording, including the ability to export to Microsoft Excel. Using the GL240’s wireless option enables the instrument’s networking features, allowing it to be remotely configured and managed using the standard Web browser of any computer or smart phone. The GL240 is provided with 4 GB of non-volatile memory embedded inside the instrument. The instrument supplies an external SD card slot for additional storage if needed.
Finally, the measurement reach of a wireless-enabled GL240 is further extended by use of the GL100 accessory. The GL100 wirelessly enables measurements of temperature/humidity, acceleration, CO2, illuminance, ac current, and more.
Accessories
Description
250 Ω ±0.1% Precision, Metal Film, 1/2W, Axial Resistor
Exceptionally low noise; typically 0.10 μV/V
Low voltage coefficient to ±5 ppm/V
Flame retardant coating. RoHS
compliant. Learn More
Description
NIST-traceable calibration certificate for all Graphtec GL Data Loggers. Does not include data. This item is NOT included with a new unit and should be purchased at the same time as the new unit. Shipping charges will apply if not ordered at time of logger purchase. Learn more about Calibrating your device.
Description
NIST-traceable calibration certificate for all Graphtec GL Data Loggers. Includes data. This item is NOT included with a new unit and should be purchased at the same time as the new unit. Shipping charges will apply if not ordered at time of logger purchase. Learn more about Calibrating your device.
Description
ISO:17025 calibration certificate for all Graphtec GL240 Data Loggers. Includes data. This item is NOT included with a new unit and should be purchased at the same time as the new unit. Shipping charges will apply if not ordered at time of logger purchase. This item DOES NOT ship same-day. Please allow 4 week lead time. Learn more about Calibrating your device.
Description
Pack of 5 T-type thermocouple adapters to save time, preserve the integrity of themocouple connections and prevent mis-wires
Description
Pack of 5 K-type thermocouple adapters to save time, preserve the integrity of themocouple connections and prevent mis-wires
Description
One (1) 7.2V/2900mAh lithium battery pack. Please Note: Continental U.S. shipping ONLY.
Description
Wireless communication option for GL240 and GL840 data loggers. 802.11/b/g/n. Required for use with GL100-WL Data Logger with a GL240. Attachment of this wireless option to the instrument prevents the use of an external SD memory card, with only the internal 4 GB non-volatile memory available for data storage.
Description
Carrying Case. Interior padding and rugged exterior for safe transportation of your GL240 data logger.
Wireless Logger and Sensors
Description
Thermistor Temperature sensor connects to model GS-4TSR. Measures -40 to 105 °C.
Description
Thermistor Temperature sensor connects to model GS-4TSR. Ultra thin. Measures -40 to 120 °C.
Description
Clamp-on AC Current sensor for GS-DPA-AC. 100 A AC current.
Description
Clamp-on AC Current sensor for GS-DPA-AC. 200 A AC current.
J, K and T Thermocouple Wires
Teflon® coated J, K and T Thermocouple Wires in various length
50-500mm Thermowells
8mm diameter, 50-500mm length, 1/2" MNTP, stainless thermowells with cable gland to protect your thermocouples
Software
GBD to WDH
File Conversion
FREE Graphtec to WinDaq High Resolution (GBD - to - WDH) File Conversion Utility (beta version) converts files recorded with a Graphtec device to WinDaq Playback for analysis.
Graphtec Downloads
Data Logger Software
Visit the Support Download page at Graphtec for software (The link below takes you to another site).
Specifications
| Analog Inputs | ||||||||||||||||||||||||||||||||||||||
| Number of Channels: | 10 | |||||||||||||||||||||||||||||||||||||
| External input/output: | Trigger input or External sample pulse (1ch), Logic input (4ch) or Pulse input (4ch), Alarm output (4ch) | |||||||||||||||||||||||||||||||||||||
| Data backup functions: | Setup parameters: EEPROM/Clock: Lithium battery | |||||||||||||||||||||||||||||||||||||
| Clock accuracy: (23°C environment) |
±0.002% (accurate within about 50 seconds per month) | |||||||||||||||||||||||||||||||||||||
| Operating environment: | 0 to 45°C, 5 to 85% RH (0 to 40°C when operated in batteries/15 to 35°C when battery is charging) |
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| Withstand voltage: | Between each input ch and GND terminal: 350Vpp 1 minute Between each input terminals: 350Vp-p 1 minute |
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| Power supply: | AC adapter : 100 to 240 VAC, 50 to 60 Hz DC input : 8.5 to 24 VDC (26.4 V max.) Battery pack (option) : 7.2 VDC (2900 mAh) |
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| Power Consumption: | AC Power consumption (when AC adapter is used)
DC Power consumption
*Set the LCD to “Bright” as normal condition. |
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| External Dimensions: | 188×117×42mm (not including protruding parts) | |||||||||||||||||||||||||||||||||||||
| Weight: | 500 (excluding AC adapter and battery) | |||||||||||||||||||||||||||||||||||||
| Vibration-tested conditions: | Equivalent to automobile parts Type 1 Category A classification | |||||||||||||||||||||||||||||||||||||
| Memory devices | ||||||||||||||||||||||||||||||||||||||
| Memory capacity: | SD CARD Slot: 2 (Compatible with SDHC, up to approx. 32GB memory available) • Approx. 4GB internal, non volatile memory • Possible to save up to 2GB for one file |
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| Memory contents: | Setup conditions, Measured data, Screen copy | |||||||||||||||||||||||||||||||||||||
| PC I/F | ||||||||||||||||||||||||||||||||||||||
| Interface types: | USB 2.0; Wireless LAN (Option) | |||||||||||||||||||||||||||||||||||||
| Functions: | Data transfer to the PC (realtime, SD memory card data) PC control of the GL240 Control of wireless sensor (GL100-WL), Data capture (only when connected to the wireless LAN: up to 1 units) |
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| USB functions: | USB drive mode: Transfer and delete the captured data in the SD memory card. | |||||||||||||||||||||||||||||||||||||
| Realtime data transfer speed: | 10 ms/1 ch maximum (dependant on number of channels). | |||||||||||||||||||||||||||||||||||||
| Monitor | ||||||||||||||||||||||||||||||||||||||
| Display: | 4.3-inch TFT color LCD (WQVGA: 480×272 dots) | |||||||||||||||||||||||||||||||||||||
| Displayed languages: | Japanese, English, French, German, Chinese, Korean, Russian, Spanish | |||||||||||||||||||||||||||||||||||||
| Backlight life: | 50,000 hrs (until the brightness is reduced to 50%), It varies with operating environment | |||||||||||||||||||||||||||||||||||||
| Backlight: | Screen saver function provided (10, 30 sec., 1, 2, 5, 10, 30, 60 min.) | |||||||||||||||||||||||||||||||||||||
| Input Unit Specifications | ||||||||||||||||||||||||||||||||||||||
| Number of input channels: | 10 channels | |||||||||||||||||||||||||||||||||||||
| Input terminal type: | M3 screw type terminals (Rectangular flat washer) | |||||||||||||||||||||||||||||||||||||
| Input method: | Photo MOS relay scanning system All channels isolated, balanced input |
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| Scan speed: | 10 ms/1 ch maximum | |||||||||||||||||||||||||||||||||||||
| Measurement ranges: | Voltage: 20, 50, 100, 200, 500 mV; 1, 2, 5, 10, 20, 50, 100 V; 1-5 V F.S. Temperature Thermocouples : K, J, E, T, R, S, B, N, W (WRe5-26) Humidity: 0 to 100% (voltage 0 to 1 V scaling conversion) Requires B-530 (optional) |
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| Measurement accuracy: 23°C ±5°C; When 30 minutes or more have elapsed after power was switched on; Sampling 1 s/10 ch; Filter ON (10); GND connected |
Voltage: 0.1% of F.S. Temperature Thermocouple
* Thermocouple diameters T, K: 0.32 φ, others: 0.65 φ |
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| Reference contact compensation accuracy: | Internal/External switching | |||||||||||||||||||||||||||||||||||||
| A/D converter: | Method :ΔΣ method Resolution :16-bit (Effective resolution: About 1/40,000 of the +/- range) |
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| Temperature coefficient: | Gain : 0.01% of F.S./°C Zero : 0.02% of F.S./°C (Occurs when sampling speed is 10, 20, or 50 ms.) |
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| Input resistance: | 1 MΩ ±5% | |||||||||||||||||||||||||||||||||||||
| Allowable signal source resistance: | Within 300Ω | |||||||||||||||||||||||||||||||||||||
| Maximum permissible input voltage: | Between +/– input terminals: 20mV to 1V range (60Vp-p); 2V to 100V range (110Vp-p) Between input terminal/input terminal: 60 Vp-p Between input terminal/GND: 60 Vp-p |
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| Withstand voltage: | Between input terminal/input terminal: 350 Vp-p 1 minute Between input terminal/GND: 350 Vp-p 1 minute |
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| Insulation resistance: | Between input terminal/GND : 50MΩ or more (at 500 VDC) | |||||||||||||||||||||||||||||||||||||
| Common mode rejection ratio: | 90 dB or more (50/60 Hz; signal source 300Ω or less) | |||||||||||||||||||||||||||||||||||||
| Noise: | 48 dB or more (with +/– terminals shorted) | |||||||||||||||||||||||||||||||||||||
| Filter: | Off, 2, 5, 10, 20, 40 Filter operation is on a moving average basis. The average value of the number of set samples is used. If the sample interval exceeds 5 seconds, the average value of data obtained in a sub-sample (5 seconds) is used. |
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| Function Specifications | ||||||||||||||||||||||||||||||||||||||
| Display screen: | Waveform + Digital screen, All Waveform screen, Digital + Calculation Display screen, Expanded digital 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 specified |
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| 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 50 ms or below can be used depending on the input settings and the measuring channel. |
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| EU (scaling function): | 4 points can be set for each channel The temperature range scaling function is available. |
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| Functions during capture: | Confirmation of the captured data (Switchable between 1-screen and 2-screen); Saving of data between cursors; Replacement of the SD memory card. When the wireless sensor (GL100-WL) is connected, the sample interval among 10, 20, and 50ms cannot be replaced during recording. Possible to save in in the GBD- or CSV-formatted data. |
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| Data save function: | Capture destination: SD memory card (Available both slot 1 and 2) Captured data: Settings, Screen data, Measurement data |
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| Capture function: | Function: Standard recording, 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. |
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| Relay recording: | The data is continuously recorded in 2GB-separated files without missing data. | |||||||||||||||||||||||||||||||||||||
| Replaying data: | GBD/CSV-formatted data file (only data captured in this GL240) | |||||||||||||||||||||||||||||||||||||
| Calculation between channels: | Calculation type: Four arithmetic operations (+, -, ×, ÷) Target input: Analog CH1 to CH10 Wireless sensor: WL1 to WL8 |
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| 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 specified between cursors (during replay) Real-time calculation results are displayed on the Digital screen + Calculation Display screen. |
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| Search functions: | Function: Search the captured data for the required number of points Search type: Channel Pulse, Logic, Level, Alarm search |
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| 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.) |
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| Trigger/Alarm Functions | ||||||||||||||||||||||||||||||||||||||
| Repeat Trigger: | Off, On | |||||||||||||||||||||||||||||||||||||
| Trigger types: | Start: Data capture starts when a trigger is generated Stop: Data capture stops when a trigger is generated |
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| Trigger conditions: | Start: Off, Level, Alarm, External, Time, Date, Weekly Stop: Off, Level, Alarm, External, Time, Date, Weekly |
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| Trigger judgment modes: | Combination: Level OR, Level AND, Edge OR, Edge AND Analog channel judgment mode: H (↑), L (↓), Window In, Window Out Logic channel judgment mode: H (↑), L (↓) Pulse channel judgment mode: H (↑), L (↓), Window In, Window Out |
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| Alarm judgment modes: | Detection method: Level, Edge Analog channel judgment mode: H (↑), L (↓), Window In, Window Out Logic channel judgment mode: H (↑), L (↓) Pulse channel judgment mode: H (↑), L (↓), Window In, Window Out |
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| External Input/Output Functions | ||||||||||||||||||||||||||||||||||||||
| Input/output types: | Trigger input (1 ch) or External sampling input (1 ch) Logic input (4 ch) or Pulse input (4 ch) Alarm output (4 ch) Switch between Logic and Pulse Switch between Trigger and External sampling. The GL B-513 (option) is required to use the external output function. |
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| Input specifications: | Input voltage range: 0 to +24 V (single-ended ground input) Input signal: No-voltage contact (acontact, b-contact, NO, NC), Open collector, Voltage input Input threshold voltage: Approx. +2.5 V Hysteresis: Approx. 0.5 V (+2.5 to + 3 V) |
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| Alarm output specifications: | Output format: Open collector output (5 V, pull-up resistance 10KΩ) <Maximum ratings of output transistor> • Collector-GND voltage: 30 V • Collector current: 0.5 A • Collector dissipation: 0.2 W Output conditions: Level judgment, window judgment, logic pattern judgment, pulse judgment |
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| Pulse input: | Revolutions mode (engines, etc.): Counts the number of pulses per sampling interval, and converts them to RPM. Set the number of pulses per revolution during revolution. Spans: 50, 500, 5000, 50 k, 500 k, 5 M, 50 M, 500 M PRM/F.S. Counts mode (electric meters, etc.): Counts the number of pulses for each sampling interval from the start of measurement. Spans: 50, 500, 5000, 50 k, 500 k, 5 M, 50 M, 500 M C/F.S. Inst. mode: Counts the number of pulses for each sampling interval. Resets the count value after each sampling interval. Spans: 50, 500, 5000, 50 k, 500 k, 5 M, 50 M, 500 M C/F.S. Maximum input frequency: 50kHz Maximum number of count: 50kC/sampling (16-bit counter) |
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| Control Software | ||||||||||||||||||||||||||||||||||||||
| Compatible OS: | Windows8.1/Windows8/Windows7/Windows Vista | |||||||||||||||||||||||||||||||||||||
| Function: | Main unit control, realtime data capture, data conversion | |||||||||||||||||||||||||||||||||||||
| Number of groups: | 4 groups MAX | |||||||||||||||||||||||||||||||||||||
| Number of CHs per group: | Up to number of connected module | |||||||||||||||||||||||||||||||||||||
| Max number of channels: | 1000 ch maximun | |||||||||||||||||||||||||||||||||||||
| Settings: | AMP settings, capture settings, trigger/alarm settings, report settings, others | |||||||||||||||||||||||||||||||||||||
| Captured data: | Realtime data (CSV, GBD Binary) Data in SD memory card (CSV, GBD binary) |
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| Display: | Analog waveforms, logic waveforms, pulse waveforms, digital values | |||||||||||||||||||||||||||||||||||||
| Display modes: | Y-T View, Digital View, X-Y View between Cursors (only during replay) | |||||||||||||||||||||||||||||||||||||
| File conversion: | Between cursors, All data | |||||||||||||||||||||||||||||||||||||
| Monitor functions: | Alarm monitor enables sending of email to the specified address | |||||||||||||||||||||||||||||||||||||
| Statistic/History: | Displays max, min and average values | |||||||||||||||||||||||||||||||||||||
| Report function: | Enables creation of daily or monthly files | |||||||||||||||||||||||||||||||||||||
| E-mail function: | E-mail sent to specified address on alarm | |||||||||||||||||||||||||||||||||||||
Articles
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Videos
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Quick Product Comparison
| Model | Analog channels |
Expandable* | Measurement Range† |
Thermocouple Support |
Max Sample Rate (Hz) |
ADC Resolution |
Digital I/O |
Interface | Data Storage | Price |
| DI-2008 | 8 | Yes | A | Yes | 200 | 16 | 7 Bi | USB | PC | $499 |
| DI-808 | 8 | - | A | Yes | 40 | 16 | 4 In 4 Out | Ethernet | Internal, USB flash, Cloud | $995 |
| DI-4718B-U | 8 | - | C† | Yes (DI-8B) | 160,000 | 12 to 16 | 2 In | USB | PC or USB flash | $795 |
| DI-4718B-E | 8 | - | C† | Yes (DI-8B) | 160,000 | 12 to 16 | 2 In | USB, Ethernet | PC or USB flash | $695 |
| GL240 | 10 | - | B | Yes | 100 | 16 | 4 In 4 Out | USB | PC, USB flash, Internal, Cloud | $1095 |
| GL840-M | 20 | Yes | B | Yes | 100 | 16 | 4 In 4 Out | USB, Ethernet | PC, USB flash, Internal, Cloud | $2395 |
| DI-718B-US | 8 | - | C | Yes (DI-8B) | 14,400 | 14 | 2 In | USB | PC or SD Card | $695 |
| DI-718B-ES | 8 | - | C | Yes (DI-8B) | 14,400 | 14 | 2 In | Ethernet | PC or SD Card | $895 |
*Expansion capabilitie dependent on model.
†Use the following chart to determine Measurement Ranges:
| A | B | C* |
| ±10 mV ±25 mV ±50 mV ±100 mV ±250 mV ±500 mV ±1 V ±2.5 V ±5 V ±10 V ±25 V ±50 V TC-J TC-K TC-T TC-B TC-R TC-S TC-E TC-N |
±20 mV ±50 mV ±100 mV ±200 mV ±500 mV ±1 V ±2 V ±5 V ±10 V ±20 V ±50 V ±100 V 1-5 V |
±10 mV ±50 mV ±100 mV ±1 V ±5 V ±10 V ±20 V ±40 V ±60 V |
*Dependent on 8B module.