Hf-scientific Micro1000 Laboratory Turbidimeter - 0-10,000 NTU Manual de usuario descargar pdf (Pagina 26)

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7. Troubleshooting

7.1. System Warning Message(s)

The instrument generates warning messages to provide you with specific diagnostic information about

the instrument. These messages are for your use and do not reduce the performance of the instrument.

The following sections outline warning messages that could be observed during normal operation.

7.1.1. Flashing “Cal” block

A flashing "Cal" block observed during normal automatic mode indicates that you should re-

calibrate your instrument.

The factory default is 30 days. HF scientific inc. recommends calibration every 30 days. The

flashing "Cal” block is only a warning and does not mean that the instrument will stop performing

accurately. The "Cal" block will flash until you have re-calibrated the instrument.

7.1.2. Sample Over-Range (“O-r”)

The instrument is capable of reading the turbidity of samples up to 10,000 NTU (or equivalent in the

other scales). If the turbidity of the sample is determined to be higher than 10,000 NTU, the

instrument will report “O-r” in the upper row of the display.

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Hf-scientific Micro1000 Laboratory Turbidimeter - 0-10,000 NTU Manual de usuario Pagina 26