GL820 Midi Data Logger - DATA LOGGER MALAYSIA OFFICIAL DISTRIBUTOR | DATA LOGGER MALAYSIA OFFICIAL DISTRIBUTOR

GL820 Midi Data Logger

The Graphtec GL820 is a compact, lightweight multi-channel Data Logger. The standard configuration has 20 isolated input channels and can be expanded in 20 channel increments up to a total of 200 channels.

The GL-820 features a high resolution 5.7" TFT color display and an easy to navigate menu system for in-field changes to set up parameters.

Data can be captured in a variety of ways. Save directly to the
2GB internal flash memory or to a hot swappable USB memory stick. You can also save directly to a network drive via Ethernet or to a PC via USB cable. The Web & FTP server functions built in to the GL820 allow for control and monitoring and data transfer from a remote location.

  • 20 Isolated Input channels, expandable to 200
  • Sample Up To 10 times per second (100ms) Using 10 Channels or Less
  • Sample Up To 5 times per second (200ms) Using 11 Channels or More
  • Accepts voltage or thermocouple inputs and optional cable inputs for (4) pulse/Logic or (1) Humidity

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)