OPTO 22 – G4AD8 _ G4 Type K Thermocouple Analog Input
Quick Specs:
- G4 Type K Thermocouple Analog Input
G4 I/O family
The G4AD17 provides a single channel of transformer and optically isolated temperature-to-digital conversion from a Type K thermocouple input. This module also includes complete electrical channel-to-channel isolation, which eliminates troublesome ground loop problems.
Specifications:
|
|
G4AD5 |
G4AD8 |
G4AD17 |
G4AD18 |
G4AD19 |
G4AD23 |
G4AD24 |
|
Thermocouple Type |
J |
K |
R |
T |
E |
S |
B |
|
Nominal Temperature |
0° to |
-100° to |
0° to |
-200° to |
-100° to |
0° to |
42° to |
|
Nominal Temperature |
32° to |
-148° to |
32° to |
-328° to |
-148° to |
32° to |
107.888° to |
|
Accuracy* |
± 1 °C |
± 1 °C |
± 2.5 °C |
± 0.9 °C |
± 0.9 °C |
± 2.5 °C |
± 5 °C |
|
Over/Under Range |
-32° to |
-150° to |
-50° to |
-270° to |
-155° to |
-50° to |
42° to |
|
Over/Under Range |
-25° to |
-238° to |
-58° to |
-454° to |
-247° to |
-58° to |
107.9° to |
|
Over/Under Range |
± 2 °C |
± 2 °C |
± °C |
± 1.8 °C |
± 1.8 °C |
± 2.5 °C |
± 5 °C |
|
* Accuracy figure requires use of gain and offset commands. |
|
Isolation (Transient) |
4,000 Vrms |
|
Cold Junction Compensated |
Yes |
|
Open Thermocouple Detection |
Yes |
|
Input Response Time |
5% of scale change in 8.5 ms |
|
Ambient Temperature |
0 to 70 °C |
|
Resolution |
12 bits |






