3.1 Limited Warranty
Honeywell Mercury Instruments, Inc. warrants all instruments covered by this manual to be free from
defects in material and workmanship under normal use and service of this product. If returned to our
factory, transportation charges prepaid, within 4 years of the original purchase shipment date, Honeywell
Mercury Instruments agrees to repair or replace any instrument which its examination reveals to have
been defective due to faulty workmanship or material. All obligations or liabilities on Mercury
Instruments part is to repair or replace warranty instruments, and does not include any other type of
claims or damages, including but not limited to consequential damages following the use or misuse of
instruments sold by it.
Honeywell Mercury Instruments reserves the right to, at any time make changes, modification or
enhancements to this product without prior notification. This warranty is in lieu of all other warranties,
express or implied. No agent is authorized to assume for Mercury Instruments any liability except as set
3.2 Safety in Hazardous Locations
The Mercury Instruments CNI4 is certified by CSA (CUS) for Class I, Div-2, Group D hazardous locations
when installed in accordance with CSA (CUS) control drawing 40-6144 in this manual. Operate the CNI4
device only if the instrument is completely intact. Also, ensure to comply with the applicable laws and
regulations, and company policies for the usage of the CNI4 device.
Use only Mercury Instruments manufactured battery packs with part numbers specified on
the certification label or control drawing. Use of third-party battery packs voids product warranty,
voids hazardous locations Class 1 Div 2 certifications and may impair safety.
Do not connect 51203165-100 battery pack and external power simultaneously to Cloud Link 4G Modem.
Also, do not replace the battery pack in a hazardous location.
Electrostatic discharge (ESD) can damage CMOS integrated circuits and modules. Observe
precautions for handling electrostatic sensitive devices.