Three types of input to measure various phenomena
Input system 1 : Multifunction analog input ports
Contains a highly isolated input system which ensures that signals are not corrupted by noise from other channels. The GL840’s inputs are suitable for combined measurements from voltage, temperature, humidity, logic, and pulse signals.
The standard configuration has 20 analog input channels. It is expandable to 200 channels by adding optional 20 channels extension terminal base unit (B-566) and input terminal units (B-564 or B-565).
| Withstand voltage & Accuracy |
Multi-input type (B-564) |
Withstand-voltage type (B-565) |
| Voltage |
Input voltage range |
20 mV to 100 V |
20 mV to 100 V |
| 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), Pt1000 (IEC751), JPt100 (JIS) |
| Accuracy |
Voltage |
± 0.1% of F.S. |
± (0.05% of FS + 10μV) |
| Temperature* |
± 1.55 ºC |
± 1.1 ºC |
Configuration for additional channels
|
Number of channels
|
20 channels
|
40 channels
|
100 channels
|
200 channels
|
|
GL840 unit (GL840-M or GL840-WV)
|
1 set
|
1 set
|
1 set
|
1 set
|
|
Connection cable (B-567-05 or -20)
|
N/A
|
1 pc
|
1 pc
|
1 pc
|
|
Terminal base (B-566)
|
N/A
|
2 sets
|
5 sets |
10 sets
|
|
Input terminal (B-564 or B-565 )
|
N/A
|
1 set
|
4 sets
|
9 sets |
Offers longer cable for the input terminals
Input terminal blocks can be connected directly (in daisy chain), or using the B-565 cable(s). This allows the input terminals to be placed in separate locations according to the need of the application.
The input terminal unit and the GL840 main body can be extended by using an extended connections cable.
*If the signal is affected by noise, it may be required to use a slower sampling.
Input system 2 : Support digital sensors
Digital sensors and input terminal/adapters for the GL100 connects to the GL840 directly
Input system 3 : 4 channels of Logic/Pulse inputs
Supports 4-channels logic or pulse signal inputs. Pulse mode allows cumulative, instant, or rotational values for industrial measurement capability with speed and flow.
Maximum sampling interval of up to 10ms
Provides faster sampling rates for voltage measurements. Up to 10ms sampling speed is achievable when limiting the number of channels in use.
|
Sampling Interval
|
10ms |
20ms |
50ms |
100ms |
200ms |
500ms |
1s |
2s |
|
Number of channel
|
1 |
2 |
5 |
10 |
20 |
50 |
100 |
200 |
|
Measuring
|
Voltage
|
● |
● |
● |
● |
● |
● |
● |
● |
|
Temperature
|
– |
– |
– |
● |
● |
● |
● |
● |
Built-in 4GB Flash memory with SD card support
The new GL series enables reliable long term measurment with its built-in 4GB flash memory and SD card slot for external storage devices. The SD card slot supports an SDHC memory card of up to 32GB.
The captured data can be stored in GBD (Graphtec binary data) or CSV file format.
Capturing time* (when all 20 analog channels are being used with Logic/Pulse inputs turned off.)
|
Sampling
|
10ms |
50ms |
100ms |
200ms |
500ms |
1s |
10s |
|
GBD format
|
31 days |
77 days |
95 days |
108 days |
270 days |
Over 365 |
Over 365 |
|
CSV format
|
3 days |
11 days |
16 days |
21 days |
54 days |
109 days |
Over 365 |
Hoskin Environnement
Hoskin Géotechnique
Hoskin Instrumentation
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