Handheld Communications FAQ

Surveyor 4a

Q: Is the handheld waterproof?

A: Yes, the Surveyor 4a has a NEMA 6 rating, which means that the enclosure is protected against the entry of water during occasional temporary (30 minutes) submersion at a limited depth (one meter).

Q: What type of batteries are required?

A: The Surveyor 4a uses a DR-30, 7.2V, 3.5Ah, NiMH Rechargeable Battery made by GP Batteries. The internal clock battery is a standard 3V lithium coin cell battery.

Q: Why does my Surveyor shut down when it is not in use?

A: The Surveyor 4a will automatically power off if it has not been used for several minutes. The user can set and change this feature.

Q: How long does it take to recharge the Surveyor battery?

A: If the Surveyor 4a battery is completely discharged, the charger can restore full power in approximately four hours.

Q: Can the rechargeable battery in my Surveyor 4a power my DataSonde or MiniSonde?

A: The Surveyor 4a rechargeable battery can power either a DataSonde or MiniSonde. The battery life is 12-16 hours, but it can vary depending on the sonde configuration and measurement frequency. Please note that a Surveyor will not power a DataSonde if the sonde is configured with both Self-Cleaning Turbidity AND a Fluorometer (i.e., Chlorophyll, Rhodamine, or Blue-Green Algae).