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20 Channel Midi Data Logger Expandable to 200 Channels

Graphtec Recording Device for Voltage, Temp, Humidity, Logic and Pulse w/ Multifunction Input

Graphtec GL820 20-Channel Midi Data Logger Expandable to 200 Channels >> 20 Isolated Input Channels for High Speed Voltage, Temperature, Humidity, Logic/Pulse Recordings
>> 10ms Sampling Rate When Limiting the Number of Channels in Use
>> Isolated Input System Ensures Signals are Not Corrupted by Other Channels
>> 2GB Internal Data Storage w/ "Hot Swappable" USB Memory Device External Storage Option
>> Supports 20mV to 50 Volts, Thermocouple Type: R, S, B, K, E, T, J, N and W and 4 Pulse or Logic Channels with Optional Cable (#B-513)
>> PC Connection through USB or LAN Ethernet Ports
>> 5.7" TFT Colour LCD Display Shows Data in Waveform or Digital Format and Manage Logger Settings
>> Ring Memory Function Allows for the Most Recent Data to be Saved to Internal Memory or External Device

Includes Software, 100 to 240 VAC Adapter and User Manual

  • Specifications
  • Documentation
  • Application Notes
  • Purchase

GL820 Data Logger Specifications

Number of Channels 20 Analog Signal Input Channels
(Expandable to 200 Channels using #B-537 and #B-538)
Input Channels Types: Trigger (1 Channel), Logic/Pulse (4 Channels)
Max. Input Voltage: 0 to 24 Volts (Single-Ended Ground)
Input Threshold Voltage: Approx. +2.5 Volts
Hysteresis: Approx. 0.5 Volts (+2.5 Volts to + 3 Volts)
Method: Scans by the Photo-MOS-Relay, All Channels Isolated
Terminal Type: Screw Terminal (M3 Screw)
Alarm Output Number of Channels: 4
Output Format: Open Collector Output (5 Volts, 10 kΩ Pull-Up Resistance)
Storage Devices Built-in Flash Memory (2 GB)
USB Memory Device
Sampling Interval Sampling Interval up to 1 Hour.
The Fastest Sampling Rates and the Restrictions:
100ms (10 Times per Second): Up to 10 Channels at a Time
200ms (5 Times per Second): 11 or More Channels at a Time
Backup Functions Setup Parameters: EEPROM
Clock: Lithium Battery
Clock Accuracy ±0.002% (50 Seconds per Month) @ 23.0°C
Operating Environment Temperature: 0 to 45°C
Humidity: 5 to 85% RH (Non-condensing)
Power Source AC Adapter: 100 to 240 Volts AC, 50/60 Hz (Included)
DC Input: (8.5 to 24 VDC; Max. 26.4 Volts)*
Battery Pack: 7.4 VDC (2200 mAh)**
Note:
* With Optional DC Drive Cable (Part # B-514)
** With Optional Battery Pack (Part #B-517). Up to 2 Batteries Can be Attached.
Measurement Ranges Voltage: 20, 50, 100, 200, 500mV; 1, 2, 5, 10, 20, 50V; 1 to 5 Volts FS
Thermocouple: Type K, J, E, T, R, S, B, N and W Supported
RTD: PT100 (Spec IEC751), JPT100 (Spec JIS), PT1000 (Spec IEC751)
Humidity: 0 to 100% (w/ Optional #B-530 Humidity Sensor)
Measurement Accuracy Voltage:
>> 0.1% Full Scale
Type R Thermocouple:
>> 0°C ≤ TS ≤ 100°C: ±5.2°C
>> 100°C < TS ≤ 300°C: ±3.0°C
>> 300°C < TS ≤ 1600°C: ±(0.05 % of Rdg + 2.0°C)
Type S Thermocouple:
>> 0°C ≤ TS ≤ 100°C: ±5.2°C
>> 100°C < TS ≤ 300°C: ±3.0°C
>> 300°C < TS ≤ 1760°C: ±(0.05 % of Rdg + 2.0°C)
Type B Thermocouple:
>> 400°C ≤ TS ≤ 600°C: ±3.5°C
>> 600°C < TS ≤ 1820°C: ±(0.05% of Rdg + 2.0°C)
Type K Thermocouple:
>> -200°C ≤ TS ≤ -100°C: ±(0.05% of Rdg + 2.0°C)
>> -100°C < TS ≤ 1370°C: ±(0.05% of Rdg + 1.0°C)
Type E Thermocouple:
>> -200°C ≤ TS ≤ -100°C: ±(0.05% of Rdg + 2.0°C)
>> -100°C < TS ≤ 800°C: ±(0.05% of Rdg + 1.0°C)
Type T Thermocouple:
>> -200°C ≤ TS ≤ -100°C: ±(0.1% of Rdg + 1.5°C)
>> -100°C < TS ≤ 400°C: ±(0.1% of Rdg + 0.5°C)
Type J Thermocouple:
>> -200°C ≤ TS ≤ -100°C: ±2.7°C)
>> -100°C < TS ≤ 100°C: ±1.7°C)
>> 100°C < TS ≤ 1100°C: ±(0.05% of Rdg + 1.0 °C)
Type N Thermocouple:
>> 0°C ≤ TS ≤ 1300°C: ±(0.1% of Rdg + 1.0°C)
Type W Thermocouple:
>> 0°C ≤ TS ≤ 2000°C: ±(0.1% of Rdg + 1.5°C)
Reference Junction Compensation: ±0.5°C
Display Size: 5.7" TFT Color LCD (VGA 320 x 240 pixels)
Formats: Waveform + Digital Values, Waveform Only, Current and Captured Signal Waveform, Digital Values Only
A/D Converter ΣΔ Type; 16 Bits (Effective Resolution: 1/40,000 of Full Range)
Data Saving Function Captured Data: Direct Saving of Data into Flash Memory or USB Memory Device
Others: Setting Conditions, Screen Copy
Ring Capturing Mode Function: ON/OFF
Number of Capturing Point: 1,000 to 2,000,000
(Size of the Capture Data Will Be Limited to 1/3 of Available Memory)
Temperature Coefficient Gain: 0.01% of FS/°C
Zero: 0.02% of FS/°C
Note: Occurs When Sampling Speed is 10, 20 or 50 ms
Withstand Voltage Between Input Terminal / Input Terminal: 350V p-p (1 Minute)
Between Input Terminal / GND: 350 V p-p (1 Minute)
Maximum Input Voltage Between ± Terminals: 60Vp-p
Between Input Terminal / Input Terminal: 60V p-p
Between Terminal / GND: 60Vp-p
Common Mode Rejection Ratio At Least 90 dB (50/60 Hz; Signal Source 300Ω or Less
Noise At Least 48 dB (with +/- Terminals Shorted)
OS Compatibility Windows XP, Vista and 7 (32 and 64 Bit Editions)
Interface to PC USB (Full Speed)
Ethernet (LAN)
Dimensions 232mm x 152mm x 50mm
Weight 900g (Excluding AC Adapter and Battery)

GL820 Data Logger Documentation

Quick Start Guide (2.6MB .pdf)
User Manual (15.2MB .pdf)

GL820 Midi Data Logger GL820 Midi Data Logger
>> Accepts Voltage, Temp, Humidity, Pulse and Logic Inputs
>> 20 Isolated Channels with 16-bit ADC resolution
>> 2GB Internal Data Storage and External USB Memory Drive
>> Includes Software, AC Adapter and User Manual
Price: $2,295.00
Part #: GL820

Standard ISO DC Voltage Calibration Service Standard ISO DC Voltage Calibration Service
>> 1 Point for First 20 Channels Offset Calibration
>> ISO/IEC 17025:2005 Accredited Lab
>> Certificate Supplied with Default 1 Year Calibration Interval Unless Noted >> Note: 5 to 10 Business Day Lead Time for All Calibration Orders
Price: $49.00
Part #: CAL-NIST-VOLT
DC Volts:

  • Accessories
    (Optional)
  • Sensors
    (Optional)

Optional Accessories for GL820 Midi Logger

20-Channel Extension Terminal Set 20-Channel Extension Terminal Set
>> 20 Channel Terminal
>> Extension Terminal Base Unit
>> Connection Plate
>> Screws
Price: $650.00
Part #: B-538

Graphtec Extension Terminal Base Set Graphtec Extension Terminal Base Set
>> Extension Terminal Base Unit
>> Cable
Price: $330.00
Part #: B-537

Logic Alarm Cable Logic Alarm Cable
>> (4) Logic Inputs
>> (4) Alarm Outputs
>> Cable Length: 2 Meters
Price: $95.00
Part #: B-513

DC Drive Cable DC Drive Cable
>> 2 Meter Cable
Price: $10.00
Part #: B-514

Graphtec Battery Pack Graphtec Battery Pack
>> Capacity: 7.2 Volts/ 2200 mAh
>> Battery Type: Lithium Secondary Battery
>> Running Time: 2.5 Hours to 9.0 Hours
>> Charging Method: Mount in the Main Unit
>> Charging Time: 4 to 8 Hours
>> Operation Environment: 15°C to 40°C
Price: $135.00
Part #: B-517

Replacement AC Adapter Replacement AC Adapter
>> Compatible with GL220 and GL820
Price: $165.00
Part #: ACADP-20

Yellow Xtreme Protective Case Yellow Xtreme Protective Case
>> Yellow Waterproof, Crushproof Case
>> Inside Dimension: 11.93" x 9.02" x 4.02"
>> Outside Dimension: 12.81" x 10.36" x 4.64"
>> Conforms to MIL-STD-810F Transit
>> Includes Customizable Foam Inserts
Price: $63.00
Part #: T6000.2

Black Xtreme Protective Case Black Xtreme Protective Case
>> Black Waterproof, Crushproof Case
>> Inside Dimension: 11.93" x 9.02" x 4.02"
>> Outside Dimension: 12.81" x 10.36" x 4.64"
>> Conforms to MIL-STD-810F Transit
>> Includes Customizable Foam Inserts
Price: $63.00
Part #: T6000.3

Optional Sensors for GL820 Midi Logger

Graphtec Humidity Sensor Graphtec Humidity Sensor
>> Temperature Range: -25°C to 80°C
>> Humidity Range: 0 to 100% RH
>> RH Accuracy: ±3% RH (5 to 98%RH at 25°C)
>> Response Time: 15 Seconds (90% Response Time When Membrane Filter Installed
>> Cable Length: 3 Meters
Price: $470.00
Part #: B-530

Welded Tip Teflon Thermocouple w/ 72" Bare Wire Leads Welded Tip Teflon Thermocouple w/ 72" Bare Wire Leads
>> Operating Range: -75°C to 250°C
>> Leads: 72" Teflon Insulated Twisted Pair Bare Wire Leads
>> Available in Type J, K, T and N
>> 2 to 8 Week Lead Time for Type N Thermocouple
Price: $10.00
TC Type:

Welded Tip Teflon Thermocouple w/ 180" Bare Wire Leads Welded Tip Teflon Thermocouple w/ 180" Bare Wire Leads
>> Operating Range: -75°C to 250°C
>> Leads: 180" Teflon Insulated Twisted Pair Bare Wire Leads
>> Available in Type J, K, T and N
>> 2 to 8 Week Lead Time for Type N Thermocouple
Price: $17.00
TC Type: