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Model GL240

Ten-channel Hand-held Voltage and Thermocouple Data Logger

$995.00
In
Stock

FREE Shipping in Continental U.S.

  • Includes a GL240 data logger, an AC adapter, and software on CD
  • 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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GL240 DAQ and Data Logger
This data logger features 10 analog input channelsThis data logger system has four digital inputs and four digital outputsThis data logger can sample and record data 10ms to 10 second intervals.
This data logger has a USB interfaceThis data logger has an Ethernet interfaceThis data acquisition system can record to a removable SD card
Get same day shipping when you order this data logger before 3PM ETThis data acquisition system has a 30-day Money back guarantee

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

R250

4-20mA current loop shunt resistor

$1.29
R250 Shunt Resistor

Description

Precision 250 Ω resistor, 0.1%. Learn More

NIST-GL-CAL

Calibration Certificate

$100.00
NIST Calibration Certificate for Graphtec Data Loggers

Description

NIST-traceable calibration certificate for all Graphtec GL240 and GL840 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.

NIST-GL-CALD

Calibration Certificate

$200.00
NIST Calibration Certificate for Graphtec Data Loggers

Description

NIST-traceable calibration certificate for all Graphtec GL240 and GL840 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.

B-513

Logic/Alarm Cable

$95.00
B-513 Graphtec Logic Alarm Cable

Description

2-meter logic/alarm cable with bare tips.

B-514

DC Power Cable

$60.00
B-514 Graphtec DC Power Cable

Description

2-meter DC power cable with bare tips.

B-569

Battery Pack

$189.00
B-569 Graphtec Battery Pack

Description

One (1) 7.2V/2900mAh lithium battery pack. Please Note: Continental U.S. shipping ONLY.

B-530

Humidity Sensor

$425.00
B-530 Graphtec Humidity Sensor

Description

3-meter humidity sensor with dedicated power connector. Learn More.

B-568

WiFi Coupler

$195.00
B-568 Wifi Coupler

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.

B-536US-240

Case

$295.00
B-536 Graphtec Carrying Case

Description

Carrying Case. Interior padding and rugged exterior for safe transportation of your GL240 data logger.

GLACP

AC Power Supply

$165.00
GLACP Graphtec AC Power Supply

Description

Spare (one is already included with the instrument) AC power supply for GL220, GL240, GL820, GL840, and GL900 products.

Wireless Logger and Sensors

GL100-WL

Wireless Coupler

$250.00
GL100-WL Wireless Data Logger

Description

Wireless coupler for GL240 and GL840 Data Loggers. Connect GS series sensors to expand the measurement capability of your data logger. Learn More.

GS-TH

Temperature/Humidity sensor

$135.00
GS-TH Temperature and Humidity sensor.

Description

Temperature/Humidity sensor for GL100 Data Loggers. Measures -20 to 85 °C and 0 to 100% RH. May be directly connected to the GL840 Data Logger.

GS-3AT

Acceleration/Temperature Sensor

$275.00
Thermistor temperature sensor

Description

Acceleration/Temperature sensor for GL100 Data Loggers. Measures up to 10G and -10 to 50 °C. May be directly connected to the GL840 Data Logger.

GS-CO2

CO2 Sensor

$415.00
GS-CO2 Carbon Dioxide sensor

Description

Carbon dioxide (CO2) sensor for GL100 Data Loggers. Measures 0 to 9,999 ppm. May be directly connected to the GL840 Data Logger.

GS-LXUV

Illuminence/Ultraviolet sensor

$225.00
Illuminence and UV sensor

Description

Illuminence/Ultraviolet sensor for GL100 Data Loggers. Measures 0 to 200k lx and 0 to 30 mW /cm2. May be directly connected to the GL840 Data Logger.

GS-4VT

Voltage/Temperature Sensor

$395.00
Voltage and Temperature sensor

Description

Voltage and Temperature sensor for GL100 Data Loggers. Programmable per channel. Supports K and J type thermocouples (K: -200 to 1370 °C; T: -200 to 400 °C). Measures 20, 50, 100, 200, 500 mV; 1, 2, 5, 10, 20, 50 V; 1-5 V (for 4-20 mA using 250 Ω shunt). May be directly connected to the GL840 Data Logger.

GS-4TSR

Temperature Sensor

$175.00
Thermistor temperature sensor

Description

Thermistor Temperature sensor for GL100 Data Loggers. Sensors include model GS-103AT-4P (-40 to 105 °C) or model GS-103JT-4P (-40 to 120 °C). May be directly connected to the GL840 Data Logger.

GS-103AT-4P

Temperature Sensor

$125.00
Thermistor temperature sensor

Description

Thermistor Temperature sensor connects to model GS-4TSR. Measures -40 to 105 °C.

GS-103JT-4P

Temperature Sensor

$125.00
Thermistor temperature sensor

Description

Thermistor Temperature sensor connects to model GS-4TSR. Ultra thin. Measures -40 to 120 °C.

GS-DPA-AC

Current Sensor

$195.00
AC Current sensor

Description

AC Current sensor for model GL100-WL data loggers. Three sensors available: GS-AC50A: 50 A AC current sensor; GS-AC100A: 100 A AC current sensor; GS-AC200A: 200 A AC current sensor. May be directly connected to the GL840 Data Logger.

GS-AC50A

Current Sensor

$125.00
AC Current sensor

Description

Clamp-on AC Current sensor for GS-DPA-AC. 50 A AC current.

GS-4VT

Current Sensor

$125.00
AC Current sensor

Description

Clamp-on AC Current sensor for GS-DPA-AC. 100 A AC current.

GS-AC200A

Current Sensor

$125.00
AC Current sensor

Description

Clamp-on AC Current sensor for GS-DPA-AC. 200 A AC current.

GS-DPA

Dual Port Adapter

$125.00
Dual Port Adapter

Description

Dual Port Adapter for GL100 or GL840 Data Loggers. Support dual connection with GS-TH, GS-LXUV, and GS-CO2 (other sensors are not supported).

GS-EXC

Extension Cable

$85.00
Sensor Extension Cable

Description

1.5 meter extension cable for use between GL100-WL or GL840 data loggers and GS sensors.

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 to WinDaq file converter

Graphtec Downloads

Data Logger Software

Visit the Support Download page at Graphtec for software (both links below take you to another site).

Graphtec Downloads

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)
Withstand voltage: Between each input ch and GND terminal: 350Vpp 1 minute
Between each input terminals: 350Vp-p 1 minute
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)
Power Consumption: AC Power consumption (when AC adapter is used)
Condition Normal Consumption Consumption during battery recharge
LCD on 16 VA 36 VA
Screensaver on 15 VA 35 VA

DC Power consumption
DC Voltage Condition Normal Consumption Consumption during battery recharge
+24V LCD on 0.24 A 0.61 A
+24V Screensaver on 0.22 A 0.59 A
+12V LCD on 0.42 A Cannot Recharge
+12V Screensaver on 0.37 A Cannot Recharge
+8.5V LCD on 0.58 A Cannot Recharge
+8.5V Screensaver on 0.53 A Cannot Recharge

*Set the LCD to “Bright” as normal condition.
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
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)
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
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)
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
TC Type Measurement Temperature Range (°C) Measurement Accuracy (°C)
R/S 0 ≤ TS ≤ 100
100 < TS ≤ 300
R : 300 < TS ≤ 1600
S : 300 < TS ≤ 1760
±5.2
±3.0
± (0.05% of rdg +2.0)
± (0.05% of rdg +2.0)
B 400 ≤ TS ≤ 600
600 < TS ≤ 1820
±3.5
± (0.05% of rdg +2.0)
K -200 ≤ TS ≤ -100
-100 < TS ≤ 1370
± (0.05% of rdg +2.0)
± (0.05% of rdg +1.0)
E -200 ≤ TS ≤ -100
-100 < TS ≤ 800
± (0.05% of rdg +2.0)
± (0.05% of rdg +1.0)
T -200 ≤ TS ≤ -100
-100 < TS ≤ 400
± (0.1% o f rdg +1.5)
± (0.1% o f rdg +0.5)
J -200 ≤ TS ≤ -100
-100 < TS ≤ 100
100 < TS ≤ 1100
±2.7
±1.7
± (0.05% of rdg +1.0)
N -200 ≤ TS < 0
0 ≤ TS ≤ 1300
± (0.1% o f rdg +2.0)
± (0.1% o f rdg +1.0)
W 0 ≤ TS ≤ 2000 ± (0.1% o f rdg +1.5)
Reference contact compensation accuracy ±0.5

* Thermocouple diameters T, K: 0.32 φ, others: 0.65 φ
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)
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.)
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
Withstand voltage: Between input terminal/input terminal: 350 Vp-p 1 minute
Between input terminal/GND: 350 Vp-p 1 minute
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.
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
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.
EU (scaling function): 4 points can be set for each channel
The temperature range scaling function is available.
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.
Data save function: Capture destination: SD memory card (Available both slot 1 and 2)
Captured data: Settings, Screen data, Measurement data
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.
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
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.
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.)
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
Trigger conditions: Start: Off, Level, Alarm, External, Time, Date, Weekly
Stop: Off, Level, Alarm, External, Time, Date, Weekly
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
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
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.
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)
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
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)
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)
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

Videos

Graphtec GL240 Playlist
GL240 Setup

View the GL240 Data Logger setup tutorial playlist on YouTube.
Graphtec APS Software Overview
Graphtec APS Software

APS PC-based software provides access to all the features on the front panel, and more.

Similar Products

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-245 4 - A Yes 200 14 2 In USB PC $299
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 $995
GL840-M 20 Yes B Yes 100 16 4 In 4 Out USB, Ethernet PC, USB flash, Internal, Cloud $2345
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.

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