OM5-LTC

Linearized Thermocouple Input Modules

FEATURES

INTERFACES TO TYPES J, K, T, E, R, S, N, AND B THERMOCOUPLES

LINEARIZES THERMOCOUPLE SIGNAL

HIGH LEVEL VOLTAGE OUTPUTS

1500Vrms TRANSFORMER ISOLATION

ANSI/IEEE C37.90.1-1989 TRANSIENT PROTECTION

INPUT PROTECTED TO 240VAC CONTINUOUS

160dB CMR

95dB NMR AT 60Hz, 90dB at 50Hz

±1V/°C DRIFT

CSA CERTIFIED, FM APPROVED, CE COMPLIANT

MIX AND MATCH OM5 TYPES ON BACKPANEL

DESCRIPTION

Each OM5-LTC thermocouple input module provides a single channel of thermocouple input which is filtered, isolated, amplified, linearized and converted to a high level analog voltage output (Figure 1). This voltage output is logic-switch controlled, allowing these modules to share a common analog bus without the requirement of external multiplexers.

The OM5-LTC modules are designed with a completely isolated computer side circuit which can be floated to ±50V from Power Common, pin 16. This complete isolation means that no connection is required between I/O Common and Power Common for proper operation of the output switch. If desired, the output switch can be turned on continuously by simply connecting pin 22, the Read-Enable pin to I/O Common, pin 19.

The OM5-LTC can interface to eight industry standard thermocouple types: J, K, T, E, R, S, N, and B. Its corresponding output signal operates over a 0V to +5V range. Each module is cold-junction compensated to correct for parasitic thermocouples formed by the thermocouple wire and screw terminals on the mounting backpanel. Upscale open thermocouple detect is provided by an internal pull-up resistor. Downscale indication can be implemented by installing an external 47Mresistor, ±20% tolerance, between screw terminals 1 and 3 on the OM5-BP backpanels.

Signal filtering is accomplished with a six-pole filter which provides 95dB of normal-mode-rejection at 60Hz and 90dB at 50Hz. Two poles of this filter are on the field side of the isolation barrier, and the other four are on the computer side.

After the initial field-side filtering, the input signal is chopped by a proprietary chopper circuit. Isolation is provided by transformer coupling, again using a proprietary technique to suppress transmission of common mode spikes or surges. The module is powered from +5VDC, ±5%.

A special input circuit provides protection against accidental connection of power-line voltages up to 240VAC.

+EXC

4

+In

Thermocouple

3

 

+2.5V

 

 

 

100M

 

 

 

 

 

Linearizer

4

 

 

 

NC

LPF

Isochopper™

LPF

6

Surge

Amplifier

Pat Pending

 

 

Suppression

 

 

 

and

 

 

20

VOUT

19

I/O Common

–In

2

 

–EXC

1

Backpanel Term Block

5

Protection

 

 

 

 

 

 

+V

–V

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Precision

 

 

Isolated

 

 

 

 

 

 

 

 

 

Computer-Side

 

 

 

 

 

 

 

 

Reference

 

 

 

 

 

 

 

 

 

 

 

Power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CJC

1

2

22

17

RD EN\

Temp

Sensor

+V

Isolated

 

 

Power

–V

Field-Side

Oscillator

 

Power

 

 

+5V

16

Power Common

FIGURE 1. OM5-LTC Block Diagram.

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Omega Vehicle Security OM5-C manual OM5-LTC, Linearized Thermocouple Input Modules

OM5-C specifications

Introducing the Omega Vehicle Security OM5-C, a cutting-edge vehicle security system designed to provide unparalleled protection against theft and unauthorized access. The OM5-C is engineered for modern vehicles, integrating advanced technologies to safeguard your investment while enhancing convenience and peace of mind.

One of the standout features of the OM5-C is its advanced immobilizer technology. This feature ensures that even if a thief manages to access your vehicle, they will be unable to start the engine without the proper authentication. The OM5-C uses a sophisticated algorithm that communicates with a unique key fob, making it virtually impossible for unauthorized users to bypass the system.

Another significant characteristic of the Omega Vehicle Security OM5-C is its real-time GPS tracking system. Users can remotely monitor their vehicle's location through a dedicated mobile app, which allows for instant alerts if your vehicle is moved without authorization. This not only aids in recovery in the event of theft but also provides peace of mind knowing you can always keep an eye on your vehicle’s whereabouts.

The OM5-C also boasts motion sensors that can detect any unauthorized movement, triggering an alarm to deter potential thieves. In addition, the system features advanced diagnostic capabilities, allowing users to receive notifications about the status of various vehicle components, further ensuring that everything is functioning within normal parameters.

In terms of installation, the Omega Vehicle Security OM5-C is designed for ease and efficiency. It can be installed in a wide variety of vehicles, making it versatile for different types of users. The system is compatible with both standard and luxury vehicles, ensuring comprehensive security solutions for everyone.

The user-friendly interface provided by the OM5-C mobile app allows for easy customization of alerts and settings, allowing users to tailor the system to their specific needs. Users can seamlessly manage alarm settings, track vehicle movements, and even pre-load emergency contacts directly from their smartphones.

Overall, the Omega Vehicle Security OM5-C stands out as a premier choice for vehicle protection, combining innovative technology with user-centric features. This state-of-the-art security system not only defends against theft but also enhances the overall security experience for vehicle owners, making it an invaluable investment for safeguarding automobiles.