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ManualsBrandsBLACK BOX ManualsSignal ConverterBLACK BOX EME1C1-005 AlertWerks 4-20mAmp Signal Converter
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CHAPTER 2: CONFIGURATION
2.1 CONFIGURATING THE 4-20MA CONVERTER
1. Plug the sensor into one of the RJ-45 ports on the gateway.
2. Point your browser to the IP address of the unit (default, 192.168.0.100) and then log in as the administrator
using your administrator password (default is “public”). You will then be taken to the summary page.
3. Select the sensor’s tab from the summary page. The layout of the next page will vary depending on your unit,
so refer to your unit’s manual for more information.
4. Set up the sensor thresholds. The low critical, low warnings, normal, high warnings, and high critical values can
be set from this page.
Next, we will cover the settings that are specific to your sensor.
Current Reading:
The percentage or absolute value of the 4-20mAmp Converter is displayed in this field. This is a read-only field.
This value can be polled via SNMP, and the data can be used for graphing. The value range is set by the base and
max scale fields in the Custom 4-20mAmp Converter Settings.
Status:
The current reading is compared to the thresholds of Critical High, Warning High, Critical Low, and Warning Low
that the user has set. From this, the status is then formed, and emails or traps are sent if necessary.
Critical High, Warning High, Warning Low, and Critical Low:
These thresholds should be re-entered every time there is a change in the type of scale (whether an absolute value
or a percentage value is used).
Display Units:
This field should be entered with an appropriate unit of the measured entity. For example, this field might be
entered with Pounds or Lbs when the input of the 4-20mA Converter is a measured pressure, or mA for an absolute
value of measured current.
Type of scale:
This field is used to select whether to display the current reading as an absolute or a percentage value.
Max Scale of Sensor in mA:
This field should be entered with the maximum value of the mAmp that is input to the 4-20mAmp Converter. For
most cases, the value of this field should be 20.
Base Scale of Sensor in mA:
This field should be entered with the minimum value of the mAmp that is input to the 4-20mAmp Converter. For
most cases, the value of this field should be 4.