User's Guide

6
Important Notes
Deployment of Permalog® Plus units should be carried out in accordance with local
regulations. Mishandling the logger could result in damage to the antenna (if incorrectly
used to lower or raise the logger) or the sensor (connecting the logger to, or re-moving it
from, the fitting). Such damage is not covered by HWM’s warranty and customers are
warned that damage to the sensor in particular is unlikely to be economic to repair.
During handling and transportation of Permalog® Plus units from site to site, care must be
taken not to bring the communications window into the magnetic field of a medium or
strong strength magnet. Continuous exposure to a magnetic field can result in variation in
the logger’s internal clock, which will lead to an increased possibility of false alarms.
Particular care must be taken to avoid packing Permalog® Plus units head to tail. Remedial
work by HWM required to correct loggers that have been affected in this way is not covered
by warranty and will be charged.
Always grasp the main body of the logger or use the optional lifting hook when placing or
retrieving the logger from the pipe fitting. Do not pull the logger by it’s aerial as this can
cause damage. Permalog® Plus units have no user serviceable parts. The en-closure
protects the user from electrical shocks and other hazards. Servicing must be referred to
competent personnel. If any unit does not appear to function correctly then it must be
returned to HWM-Water Ltd or an authorised HWM representative.
IMPORTANT SAFETY NOTE:
The Permalog® Plus logger uses a high strength magnet and should not be carried by
anyone with a heart pacemaker. This magnet can permanently corrupt magnetic storage
media such as floppy discs, hard discs and tapes etc… It can also damage TV and PC
monitor screens and some watches.
Permalog® Plus — Local Thinking, Global Capabilities