Gsm Modem Connection; Safety Precautions - Hach sc1000 User Manual

3.10 GSM modem connection

3.10.1 Safety precautions

The display module can optionally contain a built-in tri-band modem
modem connection allows fully remote operation of the sc1000 controller, including
transfer of data and software updates. The GSM modem requires a SIM card, an external
GSM antenna and must meet the requirements in
Europe
• GSM 900 or EGSM 900
(EGSM 900 = GSM 900 with expanded
frequency range)
• GSM 1800
• GSM 1900
The main modem features are:
• Maintain the sc1000 controller and sc1000 network
• Set up logging
• Download logged data
• Send out errors and warnings as a short message (SMS)
For GSM modem connection information, refer to
The following safety precautions must be observed during all phases of the installation,
operation, maintenance or repair of any cellular terminal or mobile phone incorporating
MC55/56. The manufacturer assumes no liability for customer failure to comply with
these precautions.
CAUTION
The GSM modem connection cannot be used in hazardous locations.
The manufacturer and its suppliers reject any express or indirect guarantee for the use
with High Risk Activities.
In addition to the following safety considerations, obey all the regulations specific to the
country in which the equipment is installed.
Important Note: Cellular terminals or mobile phones operate using radio signals and
networks. These connections are not guaranteed at all times under all conditions. The
cellular terminal or mobile phone must be switched on and in a service area with adequate
signal strength.
Safety precautions for GSM modem installation
• This unit is to be installed by a trained technician employing proper installation
practices for a Radio Frequency Transmitter, including proper grounding of any
external antennas.
• Do not operate the device in hospitals and/or near medical instruments such as
cardiac pacemakers or hearing aids.
• Do not operate the device near highly combustible areas such as gas stations, fuel
depots, chemical plants and blasting works.
• Do not operate the equipment in the proximity of combustible gases, steams or dust.
Table 12 GSM modem requirements
USA/Canada
•
•
•
(Figure
Table 12:
GSM 850
GSM 1800
GSM 1900
section 5.13.3 on page 68.
Installation
7). The GSM
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