Remote Calibration Relay Output; Analog Voltage Output; Analog Current Output; Range Id Output - Bacharach Neutronics Mini-ICS Operation Manual

1.4.6 Remote Calibration Relay Output

The Remote Calibration relay is used to activate a valve that flows calibration gas to the sensor
during gas calibration. This is a convenience item for applications where the sensor/sampling
system is a long distance from the analyzer. The Calibration relay is mapped to the analyzer
Calibration function. It activates whenever the user initiates a gas calibration routine by entering
CAL mode (section 3.2.1), closing off the flow of process gas and introducing calibration gas to the
Oxygen Sensor. The Remote Calibration relay contacts are Form B (SPST), voltage-free.

1.4.7 Analog Voltage Output

The Analog Voltage output is used to indicate to a remote device (user control system, chart-
recorder, etc.), the displayed Oxygen concentration in dynamic electrical potential. The Analog
voltage can vary from 0 volts for minimum-scale-deflection, to either 1, 5 or 10 volts full-scale. The
Analog voltage output is scaled according to the analyzer's active range, and must be used in
conjunction with the Range ID voltage when the Analyzer is configured for auto-ranging (section
1.4.9).

1.4.8 Analog Current Output:

The Analog Current output is used to indicate to a remote device (user control system, chart-
recorder, etc.), the displayed Oxygen concentration in dynamic electrical current flow.
minimum scale deflection may be set to either 0 mA or 4 mA. Full-scale is fixed at 20 mA. The
Analog current output is scaled according to the analyzer's active range, and must be used in
conjunction with the Range ID voltage when the Analyzer is configured for auto-ranging (section
1.4.9).

1.4.9 Range ID Output

To remotely detect the present range of Oxygen concentration, the Model Mini-ICS features a 0-
10V Auto-Range Identification output. The Range ID output is used in conjunction with the Analog
Voltage and Analog Current outputs when auto-ranging is used. It provides an indication of the
Analog outputs' current full-scale. There are four voltage levels are used in the Mini-ICS:
•
For a Full Scale of 1%, the Range ID output is 5.63 Volts
•
For a Full Scale of 10%, the Range ID output is 6.25 Volts
•
For a Full Scale of 25%, the Range ID output is 6.88 Volts
•
For a Full Scale of 50%, the Range ID output is 7.50 Volts
•
For a Manual Scale, the Range ID output is 9.30 Volts

1.4.10 Service Port

The Service port provides a user-friendly means of digital communications with the Model Mini-ICS
Analyzer. Through this port, the unit may be configured, calibrated, and queried for most
functions. The RS-232 port may also be programmed to send out information on a timed basis for
users who prefer to use digital instead of Analog interfacing with the analyzer. In addition, the
service port may be used with a PC based computer (such as a portable notebook computer) over
a standard bi-directional RS-232 serial interface.
Manual Part Number:
5-06-4900-53-0
Revision Level: C
ECO 044952
System Hardware Overview
Revision Date:
May 08, 2018
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