GDA-400 – controller for different sensors
GDA-400 with 4-20mA inputs
Four Channel Alarm Controller
- Control system for up to 4 transmitters
- Graphic LCD shows real-time monitoring
- Complete calibration functionality
- Non-volatile memory retains all configuration data
- Optional discrete channel alarm relays
Bacharach’s GDA-400 controller is designed to provide simultaneous display and alarm functions for up to four fixed-system monitors with 4 to 20 mA inputs. Real-time data displayed on the LCD includes gas type and concentration, bar graphs and 30-minute trends.
The GDA-400 is equipped with a fault and three adjustable alarm levels per channel. Relay outputs allow control of audible and visual alarms, strobes, horns, and other alarm events. Options such as 4 to 20 mA or Modbus® RTU outputs and discrete alarm relays are easily added.
ATTENTION:
The system is dedicated primarily to cooperation with existing, installed gas sensors from different manufacturers. In the case of design and installation of a new detection system, it is recommended to use MGS-500 or C3-NET sensors equipped with digital Modbus outputs, plugged to MC3 or ASIX control system. The digital signal, unlike the analog 4-20 mA signal, is a non-modifiable and undeniable signal that guarantees above-average information security.
SPECIFICATIONS
| Type | Four channel alarm controller |
| Inputs | Four 4 to 20 mA |
| Display | Backlight graphic LCD, 128 x 64 Pixel; 6 status LEDs |
| Power | 100 to 240 VAC, 24 VDC |
| Alarm Relays, Common | 2 Standard, SPDT |
| Rating: 5 A @ 30 VDC or 250 VAC, resistive load | |
| Alarm Relays, Discrete | 6 optional, SPDT |
| Rating: 5 A @ 30 VDC or 250 VAC, resistive load | |
| Analog Outputs (Optional) | Four 4 to 20 mA |
| Serial Port (Optional) | Modbus RTU via RS 485 |
| Temperature | 13 to 122 ºF (-25 to +50 ºC) |
| Housing Options | NEMA 4X / IP66; NEMA 7 optional |
| Dimensions | 8.0” x 10.0” x 6.25” (210 x 255 x 160 mm) |
| Approvals | CE Mark, CSA/UL Div 2 (Pending); NEMA 7: Div 1, Group B |
PART NUMBERS
| Part Number | Description |
| 5700-0400 | GDA-400 4 Channel Base Controller, NEMA 4X Enclosure
NOTE: One input card must be ordered with each controller |
| Options | |
| 5700-0014 | Optional 4 to 20 mA Input Card |
| 5700-0020 | Optional Bridge Sensor Input Card |
| 5700-0015 | Optional Alarm Relay Output Card |
| 5700-0019 | Optional 4 to 20 mA Output Card |
| 5700-0017 | Optional RS-232 / RS-485 Modbus® RTU Output Card |
| 5700-0029 | Optional 50 W Power Supply (Required if connected transmitters exceed 10 W) |
TECHNICAL MATERIALS
GDA-400 DataSheet
GDA-400 Manual
GDA-400 Declaration of Conformity