Datasheet
G1QX "GLIDE" DIN-rail 4-20mA Analog Signal Loop Converter, Indicator and Communicator
Introduction
"GLIDE" unit is used to show and digitize current output of any 4-20mA sensor (current loop). Display and digital output present the value of the electrical current. In addition 4-20mA scale is mapped to percentages (0-100% mapped to 4-20mA output). A compact OLED display is used.
Some units also provide serial interface to transfer the converted values over 3V3 TTL signalled UART interface to SCADA or other control system.
The device must be powered from a power source of 5-28V DC using the dedicated input power pins.
Application
As a permanent display of the current loop sensor in distribution cabinets and as a compact low-cost ADC for simple automation installations.
Technical parameters
| Type of measurement | electrical current |
| Designed measurement range | 4-20mA |
| Combined measurement precision | 0.1% of measured range (accounts for non-linearity of measurement, hysteresis and repeatability) |
| Long-term drift | |
| Recommended calibration frequency | once every two years |
| Power supply | 5V - 28V DC |
| Communication | UART (TTL) |
| IP protection grade according to (IEC 60 529) EN 60 529 | IP 50 |
Software
Order code table
| Measurement range (M) | |
| M0 | 0 - 0.25m |
| M1 | 0 - 0.5m |
| M2 | 0 - 1m |
| M3 | 0 - 2m |
| M4 | 0 - 4m |
| M5 | 0 - 8m |
| M6 | 0 - 10m |
| M7 | 0 - 20m |
| M8 | 0 - 40m |
| M9 | 0 - 80m |
| M10 | 0 - 100m |
| M11 | 0 - 160m |
| M12 | 0 - 250m |
| M13 | 0 - 400m |
| M14 | 0 - 600m |
| MX | special - on request |
| Measurement precision (P) | |
| P0 | 0.1% |
| P1 | 0.25% |
| P2 | 0.4% |
| PX | special - on request |
| Variation (T) | |
| T0 | standard / typical |
| T1 | for potentially explosive atmospheres |
| TX | special - on request |
| Output type (W) | |
| W0 | 4-20mA |
| W1 | RS485 with MODBUS |
| WX | special - on request |
Installation
Physical installation of the sensor
The UART interface is an output only interface - it does NOT accept commands so its possible only to use the TX line from the GLIDE to RX line on receiving side and RX line on GLIDE shall be not connected.
The 3V3 TTL signal is referenced to GND pin.
UART protocol is set to 9600 baud, 8N1.
Format of the output message (in hex):
0xAA 0xAA 0xAA 0xAA 0xBB
Where: 0xAA 0xAA 0xAA 0xAA is miliamperes represented in a C-type 32 bit float and 0xBB represents checksum of the measurement bytes as sum modulo 256.
Design and manufacture
For support please contact your distributor or manufacturer directly via info@quorumprecision.com