When your Decastar 150e behaves erratically, the manual’s error code section is your first stop. Below are frequent codes and solutions.
| Error | Meaning | Solution (from manual) |
|-------|---------|------------------------|
| ERR01 | EEPROM failure | Replace mainboard. Attempt reset via r.St in Tech Menu. |
| ERR03 | A/D converter not responding | Check power supply (minimum 12V DC). Check internal ribbon cable. |
| ERR05 | Weight exceeds max + 9d | Remove load. Check for mechanical binding. |
| ERR08 | Underload (negative overload) | Calibration zero lost. Perform C.IN again. Check load cell wiring (Excitation +/-). |
| ERR31 | Calibration weight error | Applied weight < 1% of full scale. Use larger test weight. |
| Lo BAT | Low battery (if backup option fitted) | Replace internal battery or connect mains. |
If you see "----" flashing, the ADC is saturated—immediate check load cell input (typically > 3mV/V or broken cable). decastar 150e manual
Q1: Can I use the Decastar 150e with a 350-ohm load cell? A: Yes. The manual specifies that the 150e supports up to 4 load cells of 350 ohms in parallel (total 87.5 ohms). For 6 or more load cells, use a junction box.
Q2: How do I reset the Decastar 150e to factory defaults?
A: Enter the Technician Menu → Select r.St (Reset) → Choose FACt → Confirm. This erases all calibration and parameters. When your Decastar 150e behaves erratically, the manual’s
Q3: Why does my Decastar 150e show "Err05" when nothing is on the scale? A: Likely moisture ingress or a damaged load cell cable causing a short. Disconnect load cell and check resistance between signal + and signal - (should be between 200-400 ohms for typical cells).
Q4: The display is very dim. Is there a backlight setting? A: No. The Decastar 150e does not have a backlight; it uses high-brightness LEDs. Dimming usually indicates low voltage (check 12-24V DC supply). Q1: Can I use the Decastar 150e with a 350-ohm load cell
Q5: Can I print a ticket directly without a PC?
A: Yes. Configure P.09 = 3 for print mode. Connect a serial thermal printer (e.g., EPSON TM series) and press the F key.
Tip from manual: If you see
ERR31during calibration, check the load cell signal (mV/V) – it is likely too low or too high.
Before diving into the manual’s contents, it is essential to understand the device. The Decastar 150e is a digital process indicator and controller, typically manufactured by LAUMAS Elettronica, an Italian leader in industrial weighing technology. It is designed for:
The "150e" model is known for its compact DIN size, bright LED display, and modular I/O options. Because of its versatility, the manual is notoriously dense—which is why this breakdown is so valuable.