validateLoopImpedance method

String? validateLoopImpedance(
  1. double impedance
)

Validates loop impedance (Zs). Returns error message if invalid, null if valid.

Implementation

String? validateLoopImpedance(double impedance) {
  if (impedance <= 0) {
    return "Inválido (<=0)";
  }

  if (impedance > _maxImpedanceWarning) {
    return "Verificar (>${_maxImpedanceWarning.toStringAsFixed(0)}Ω)";
  }

  return null;
}