Observator Instruments OMC-183-ML User Manual

OMC-183-ML Manual Page 10
2.6. OIC-406 Temperature & Humidity sensor.
The OIC-406 has NMEA output. Connecting the basic node to OMC-183-ML is possible
by using NMEA1 IN or NMEA2 IN.
2.7. OMC-406 Temperature & Humidity sensor.
The old OMC-406 is a less accurate sensor, and got two 4-20mA analog outputs. These
signals can be connected to OMC-183-ML by using two of the analog current input ports
for example current inputs 2 & 3:
Recommended cable: shielded 2x2x0,75mm2 twisted pair
OMC-183-ML
OIC-406 (NMEA)
GND [SUP]
13
1
GND [SUP]
SUPPLY
14
2
SUPPLY
NMEA2_IN_A
15
3
NMEA_OUT_A
NMEA2_IN_B
16
4
NMEA_OUT_B
OMC-183-ML
OMC-406 (4-20mA)
GND
62
Yellow
Power GND
SUPPLY
61
Green
Power +24V
0-24 mA INPUT 2
60
Brown
4-20mA out
(temperature)
0-24 mA INPUT 3
63
White
4-20mA out
(humidity)

Observator Instruments OMC-183-ML Specifications

General

Brand	Observator Instruments
Model	OMC-183-ML
Category	Network Hardware
Language	English

Summary

Introduction to OMC-183-ML

Included OMC-183-ML Types

Lists available analog and digital inputs/outputs for the OMC-183-ML unit.

Installation and Sensor Connections

OMC-160 Wind Sensor Connection

Details wiring and pin assignments for connecting OMC-160 wind sensors.

OMC-116 Wind Sensor Connection

Details wiring and pin assignments for connecting OMC-116 wind sensors.

OMC-118 Ultrasonic Wind Sensor Connection

Details wiring and pin assignments for connecting OMC-118 ultrasonic wind sensors.

OIC-406 Temperature & Humidity Sensor Connection

Details NMEA output connection for OIC-406 sensors.

OMC-406 Temperature & Humidity Sensor Connection

Details 4-20mA analog output connection for OMC-406 sensors.

OMC-506 Barometric Pressure Sensor Connection

Details 4-20mA output connection for the OMC-506 barometric sensor.

OMC-9501 Barometric Pressure Sensor Connection

Details voltage output connection for the OMC-9501 barometric sensor.

OMC-443 Temperature Sensor Connection

Details 4-20mA output connection for the OMC-443 temperature sensor.

OMC-938/939 Display Connection

Details RS422/OMC-2900 output connection for OMC-938/939 displays.

Commissioning and Configuration

Connecting PC/Laptop to OMC-183-ML

Details serial connection setup, including terminal program and COM port settings.

Device Status Indicators (LEDs)

Explains the function of the six LEDs on the printed circuit board for device status.

User Settings for QNH & QFE

Explains how to calculate QNH/QFE using helideck/runway heights and sensor settings.

0-20mA Input Configuration

Configures 0-20mA inputs for various sensors like Baro, Temperature, Humidity.

0-5V Input Configuration

Configures 0-5V inputs for various sensors like Baro.

Calculation Settings (QNH/QFE)

Sets parameters for calculating QNH and QFE, like heights and pressure thresholds.

Baud Rate Configuration

Allows changing baud rates for NMEA and RS-232 inputs/outputs.

Analog Input Calibration Procedure

Guides on calibrating analog inputs by connecting reference values.

Display Calibration Values

Requests and displays stored calibration values for analog inputs.

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