Instrumentation GDD GRx8mini, Instruction Manual

Page: 22 / 141

Instrumentation GDD Inc. 2018-04-06 Page 22
7. Cold weather and harsh environments tips
The GRx8
mini
receiver is designed to be used in cold weather (up to -40°C) but it is very
important to consider these few tips to prevent damages or malfunctions:
1. Never charge the internal batteries of the GRx8
mini
in sub-zero;
2. As much as possible, turn on the GRx8
mini
receiver in a warm place before using it in cold
weather;
3. Never turn off the GRx8
mini
receiver when using it in cold weather to keep the batteries
warm;
4. If possible, use the serial communication (RS-232 cable) between the Allegro
2
field
computer and the GRx8
mini
to prevent malfunction of the Bluetooth communication, and
to maximize the battery charge.
When using the GRx8-32 receiver during rainy days, please consider the following tips to ensure a
long term instrumental reliability:
1. The receiver’s control panel, including each connector and input channel, is water
resistant. Nevertheless, it is important to bring the receiver back at the base of operation
after each day, to leave the pelican case lid open and to remove the connectors’ cap so
that humidity is freed from the instrument;
2. If possible while collecting data, close the lid of the pelican case to avoid water to soak the
jack connectors and potentially short the channels;