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INSTALLATION GUIDE FOR THE
ENVIROMUX-S420MA-24V
INTRODUCTION
The NTI ENVIROMUX-S420MA-24V Sensor Converter monitors 4-20mA sensors (up to two) when connected to an
ENVIROMUX-16D, ENVIROMUX-5D or ENVIROMUX-2D (SYSTEM). The 4-20mA sensors can be any ISA Type 2, ISA Type 3,
and ISA Type 4 sensor. When connected to a SYSTEM via 18-24AWG CAT5/5e/6 cable (up to 500 feet away), the 4-20mA
sensors can be monitored and the SYSTEM can be configured to alert users as to variations in the current levels.
Features:
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External RJ45 device monitors up to two 4-20mA sensors
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Supports ISA Type 2, ISA Type 3, and ISA Type 4 sensors
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Provides 24VDC, 25mA for each sensor
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8-position screw-terminal connection
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Supports CAT5/5e/6 cable up to 500ft
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Includes Mounting Ears
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RoHS certified
MATERIALS SUPPLIED
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ENVIROMUX-S420MA-24V Sensor Converter
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1K Ohm Resistor (for use with ISA Type 4 Sensors)
INSTALLATION
Mount the ENVIROMUX-S420MA-24V using the mounting ears provided. To use the ears, remove the screws securing the ears
to the rear of the ENVIROMUX-S420MA-24V, turn the ears around, and reapply the screws. Alternatively, secure one ear to
holes on the bottom of the unit so that it can be hung as shown in the image below.
