... period of 8,15 or 30min,with red maximum pointer. Resetting knob of maximum pointer can be protected by lead seal. Convenient ... 25% of full- scale deflection. Accuracy of maximum load indication ±3%,referred to the maximum pointer. Response time 8,15 or 30minutes ... . Accuracy:Class 3.0Specification: 8min 5A, 15min 5A; 8min 1A, 15min 1A Case: Non-combustile ABS plastic material is used for making ...