NTI ENVIROMUX-S420MA-24V User manual

1
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:
¾External RJ45 device monitors up to two 4-20mA sensors
¾Supports ISA Type 2, ISA Type 3, and ISA Type 4 sensors
¾Provides 24VDC, 25mA for each sensor
¾8-position screw-terminal connection
¾Supports CAT5/5e/6 cable up to 500ft
¾Includes Mounting Ears
¾RoHS certified
MATERIALS SUPPLIED
¾ENVIROMUX-S420MA-24V Sensor Converter
¾1K 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.

2
To mount multiple Sensor Converters in close proximity to the SYSTEM, install an extension rail kit (NTI
ENVIROMUX-RL-16D - sold separately) and mount Sensor Converters as seen in the illustration below.
CONNECTION
1. Connect a 4-20mA sensor to the “+ , – , 24V, and (earth ground)” connections of either group 1 or group 2 (as shown
below) on the removable terminal block. Connection methods for ISA Type2, ISA Type 3, and ISA Type 4 are shown
below.
Note: The wire connection terminal block is easily removed from the Sensor Converter for more convenient wire
termination.

3
2. Connect a CAT5/5e/6 patch cable (up to 500 feet long) between the “Cat 5” port on the Sensor Converter and an “RJ45
Sensor” port on the SYSTEM. The CATx cable should be 18-24AWG in order to work at the maximum distance.
Note: Each row of RJ45 Sensor connectors (1-8 and 9-16) is rated for a combined load of 500mA. Each
ENVIROMUX-S420mA-24V uses 130mA @ 12VDC. When applying sensors, be sure that the total load on each row does
not exceed 500mA or failure of the SYSTEM may result.
Note: If you apply 3 ENVIROMUX-S420MA-24V to each row, you will not be able to use many of the remaining sensor
ports due to lack of remaining capacity.
Up to 3 ENVIROMUX-S420MA-24V can be connected to an ENVIROMUX-5D, and up to 2 can be connected to an
ENVIROMUX-2D.

4
CONFIGURATION
When a ENVIROMUX-S420MA-24V Current Sensor is connected to the SYSTEM, the summary page will update with two sensor
names of the Type “Current”. Various types of sensors can be connected to an ENVIROMUX-S420MA-24V. In order to better
define the sensor on the Summary Page, in SNMP traps, or in an MIB browser, click on the “Edit” link to open the sensor
configuration page and configure the sensor. In the image below, an RTD Temperature sensor has been connected to the
Current Sensor plugged into RJ45 port 10 and configured to be used.
Figure 1- Current sensor added to ENVIROMUX
Configuration of sensor connected to ENVIROMUX-S420MA-24V
An RTD sensor
is connected to
one input on the
current sensor,
the second input
has not been
co
nfi
gu
r
ed
.
Select
“Edit” to
configure
T
emperature range of
the sensor-
-10°F to 250°F

5
Most of the sensor settings are the same as any other sensor configuration (see your SYSTEM manual for details) but there are
some differences:
Sensor Settings Description
Associate Sensor Select if the Type “Current” should be replaced by the sensor type to be entered in the next box
Associated Sensor Type Enter the “Type” of sensor that should be displayed on the summary page and in all alert
communications received regarding this sensor
Associated Sensor Unit Enter between 1 and 3 alphabetical characters. These characters will be used by the
ENVIROMUX to represent the unit of measure reported by the attached sensor. Leaving it
empty will result in an empty string in the reported data.
SNMP Associated Type ID Enter ID value from MIB file if SNMP traps will be used for alert notifications for this sensor (for
more on this, see “SNMP Custom Type ID” below)
Min. Associated Level The minimum range of the units to be associated with the current reading measured from the
attached sensor.
Max. Associated Level The maximum range of the units to be associated with the current reading measured from the
attached sensor.
SNMP Custom Type ID: Use this field if SNMP traps will be used for alert notifications. The Type ID corresponds with a value
defined in the MIB file under “extSensorType” (default value is 32767 for type “Custom”). Place the desired number in this box
that represents the type of sensor to be reported in the MIB browser or SNMP trap.
To define a new type of sensor;
1. open the MIB file,
2. locate the section titled “extSensorType”,
3. assign a description and a number not already in use (in the “SYNTAX” field) to associate with it ,
4. enter the number for the newly defined extSensorType in the SNMP Custom Type ID box.
If the Type ID is left blank, the value “0” will be assigned, which will be reported in the browser and SNMP trap as type
“undefined”.
TECHNICAL SPECIFICATIONS
COPYRIGHT
Copyright © 2008,2017 Network Technologies Inc All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written consent of Network Technologies Inc, 1275 Danner Drive, Aurora, OH 44202.
CHANGES
The material in this guide is for information only and is subject to change without notice. Network Technologies Inc reserves the
right to make changes in the product design without reservation and without notification to its users.
WARRANTY INFORMATION
The warranty period on this product (parts and labor) is two (2) years from date of purchase. Please contact Network
Technologies Inc at [phone] or 330-562-7070 for information regarding repairs and/or returns. A return authorization
number is required for all repairs/returns.
MAN099 Revised 3/14/2017
TROUBLESHOOTING
Problem Solution
Message “OUT OF
RANGE” appears in
sensor status page
Wires to sensor are not connected to terminal
block.
Description Specification
Measurement Range 4-20mA
Measurement Accuracy + 0.5% of full scale
Resolution + 15 uA
Power 130mA @ 12V 10mA @ 5V
(Powered by the SYSTEM)
Size (In.) W x D x H 4.15x2.3x1.2