Instruction manual

Model 5100-99-IT 4-20 mA Transmitter
Page: 5
2. CAUTIONS & WARNINGS
2.1 INTRODUCTION
Although IT Transmitter is designed and constructed for installation and operation in industrial applications
including "hostile" environments, caution should be taken to insure that the installation is made in
compliance with this instruction manual and that certain procedures and conditions are avoided. This
chapter discusses the necessary cautions. Read the entire chapter prior to installation of the
equipment.
2.2 IT TRANSMITTERS - GENERAL
Avoid installing Transmitter where they will be unnecessarily exposed to wind, dust, water (esp. direct hose
down), shock, or vibration. Observe temperature range limitations.
2.3 WIRING
The manufacturer recommends that extra caution be taken where the installation is near any sources of
electromagnetic or radio frequency interference. Precautions include:
• Avoid running transmitter cable close to high power cables, radio transmission lines, or cables subject
to pulses of high current.
• Avoid running cables near large electric motors or generators.
• When the transmitter is to be operated in analog (4-20mA output) mode shielded cable is required.
• All splices must be via either a termination hardware system or soldered. Improperly spliced cable can
result in corrosion, resistance changes and system errors.
• Use low capacitance cable for RS-485 Modbus RTU Operation.
NOTE
Installation and wiring must be in accordance with the National Electrical Code. AC Voltage
conductors are not to be run in the same conduit as DC voltage conductors.