HMI430: Technical specification
All voltages are measured with respect to the 0V power supply pin.
3D CAD Files
Operating limits
The unit may be damaged if operated outside these limits
| Absolute Maximums |
|---|
| Ambient temperature range | -10°C to 60°C |
| Supply voltage | +9 to +28VDC |
| RTC Supply voltage | +2.1 to +3.6VDC |
| Voltage applied to any digital I/O pin | -0.3V to Vsupply |
| Output sink current, per digital I/O pin used as output | 500mA |
| Output sink current, aggregate of all pins | 2.4A |
Voltage applied to analog input pins
| 0-10V mode | 30V |
| 0-3.3V mode | 10V |
| 0-20mA mode | 25mA |
| Thermistor mode | 30V |
| Analog output current | 30mA |
| Real time clock battery voltage | 3.6V |
DC electrical characteristics
Vsupply = 24V, Ambient temperature = 25°C unless otherwise noted.
Parameter | Value | Unit |
|---|
| Supply current, Vsupply = 24V, display backlight at full intensity | 100 | mA |
| Supply current, Vsupply = 24V, display backlight off | 60 | mA |
| Supply current, Vsupply = 12V, display backlight at full intensity | 200 | mA |
| Supply current, Vsupply = 12V, display backlight off | 120 | mA |
| Analog input resolution | 12 | bits |
| Analog output resolution | 10 | bits |
| Analog input and output accuracy | 2 | % |
| Analog input resistance, 0-10V mode | 149.2 | kΩ |
| Analog input resistance, 0-3.3V mode | 1 | MΩ |
| Analog input burden resistance, 0-20mA mode | 165 | Ω |
| Analog output resistance | 100 | Ω |
| Digital output ON state resistance, output current = 500mA, temperature = full rated range | 300 | mΩ |
| Digital input current, Vin = 0V, Vsupply=24V (approximately=Vsupply/10,000) | 2.4 | mA |
| Digital input low voltage (voltage must be less than this to guarantee an "on" input) | 2 | V |
| Digital input high voltage (voltage must be more than this to guarantee an "off" input) | 4.6 | V |
| Realtime clock accuracy, seconds per month | 1 | s/mo |
| Real time clock battery current, 3.0V battery | 9 | μA |
| Minimum real time clock battery voltage | 2 | V |
Display characteristics
| Resolution | 480x272 | pixels |
| Colour depth | 16 | bits |
| Display brightness | 300 | nits |
| Contrast ratio | 350 | - |
| Dimming range | 0 - 100 | % |
| Backlight lifetime @ full brightness (drop to 50%) | 20000 (min) | hr |
| Flash storage for images and fonts | 8 | MB |
TTL Comm Ports
| Maximum input voltage | 5.0 | Volts |
| Output Voltage | 3.3 | Volts |
| Maximum Data Rate | 115.2 | kBaud |
RS485 Comm Port
| Unit Load | 1 | - |
| Unit load equivalent number of devices per network | 32 | - |
| Maximum Data Rate | 115.2 | kBaud |
| Protection TVS diode breakdown voltage | +6.8 | Volts |
