Sierra Monitor Corporation 5100-06-IT, T12020, 5100-05-IT, 5100-04-IT Transmitter Replacement

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Model 5100-XX-IT Toxic Gas Sensor Module

The enclosure should be replaced if the cover threads or conduit threads have been damaged, or if the enclosure has been damaged sufficiently that it no longer meets the required NEMA classification.

To replace the enclosure follow the transmitter and sensor assembly removal instructions, remove the damaged enclosure from its conduit, install a new enclosure and replace the transmitter and sensor assembly.

6.3TRANSMITTER REPLACEMENT

The transmitter assembly should be replaced when it is determined that it is unreliable, noisy or cannot be adjusted for calibration. This may occur due to age, corrosion or failed components.

To replace the transmitter assembly:

a.Remove the cover of the main enclosure

b.Unscrew the two thumb screws in the top of the cover plate, lift the assembly and rotate 90o to relieve the wiring service loop

c.Unplug the sensor connector from the transmitter

d.Plug connector into new transmitter (be sure to match numbers between connector and socket).

e.Restore power and allow a minimum of 3 hours for stabilization before re-calibration

6.4SENSOR REPLACEMENT

The gas sensor which is located inside the sensor assembly housing can be replaced without replacement of the housing. The gas sensor needs replacement when:

The “CAL-FAIL” message appears after calibration

The sensor output signal is noisy, causing erroneous gas level readings

To replace the sensor:

a.Confirm that system power has been removed

b.Remove the gas sensor module enclosure cover,

c.Unscrew the two thumb screws in the top of the faceplate, lift the transmitter assembly and rotate 90o to relieve the wiring service loop.

d.Unplug the sensor connector from the transmitter

e.Unscrew the old sensor assembly from the enclosure conduit hub. Remove the sensor assembly with its harness

f.Unscrew sensor housing cover from the sensor (be sure to loosen the set screw first)

g.Carefully pull the old sensor straight up from the socket

h.Press the new sensor into the socket.

i.Reverse the preceding steps to install the sensor assembly.

j.Allow the new sensor to stabilize for a minimum of 3 hours and then calibrate using the procedure in Section 6.

6.5INSTALLATION INSPECTION

Prior to system start-up or trouble shooting the entire system should be visually inspected. The following are guidelines for that inspection:

6.5.1.1CONTROLLER INSTALLATION

•Controller installed in conformance to instruction manual recommendations.

•AC power is correctly grounded.

•Hot AC and relay connections have safety covers installed.

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Contents Applicability & Effectivity IT SeriesThis page Intentionally Left Blank ContentsTable of Contents Appendices Product Description Mechanical Page Transmitter Electronics Introduction IT Modules General This page Intentionally Left Blank Installation Enclosure Installation Establish the module address according to section Transmitter Face Plate Sensor Module Address Switch PositionsPage 20mA Circuit Types 20mA Circuit Type Connections for 5100-XX-IT Page Wiring Connections for Remote Alarm Reset This page Intentionally Left Blank Key M Key E Key /\ Mode EnterIT Module Menu Switch Locations OperationOperation Display Values Key Function Display Description ReferenceModel 5100-XX-IT Toxic Gas Sensor Module 3A Set-Up Configuration Relays Set Point Adjustment Example3B Set-Up Configuration Gas Range Adjustment ExampleMA Adjustment Example RS-485 Adjustment ExampleMaintenance Menu This page Intentionally Left Blank Model 5358-01 Calibration Adapter CalibrationSub-Routines Model Gas Flow PeriodXxxxxxx ServiceTransmitter Replacement Power cycle the unit Recalibrate the sensor Appendices Appendix a SpecificationsOrdering Information Model 5100-XX-IT Toxic Gas Sensor ModuleSensor Module Appendix B Model Numbers & Parts ListAppendix C Limited Warranty Appendix D Remote SENSOR/DISPLAY Drawing Read Register Table Description Appendix E Modbus Memory MAPComments

5100-03-IT, 5100-05-IT, 5100-06-IT, T12020, 5100-04-IT specifications

Sierra Monitor Corporation is renowned for its commitment to providing cutting-edge technology solutions for industrial monitoring and control systems. Among its notable products, the Sierra Monitor Corporation 5100 series, which includes models 5100-06-IT, 5100-05-IT, 5100-04-IT, and 5100-03-IT, stands out for its robust design and advanced features tailored for diverse applications in industrial environments. Additionally, the T12020 model complements this series, offering unique functionalities.

The 5100 series is primarily designed for gas detection and monitoring, equipped with advanced sensors capable of identifying a wide array of gases, including combustible, toxic, and refrigerant gases. These models utilize state-of-the-art technology, including electrochemical and infrared sensors, ensuring high sensitivity and accuracy in detecting hazardous gases. This is crucial for maintaining safety in industrial settings where exposure to harmful gases can pose significant risks to personnel and equipment.

One of the main features of the 5100 series is its versatility. Each model is equipped with customizable settings, allowing users to configure alarm levels and response options to meet specific operational needs. This flexibility is essential in applications ranging from petrochemical plants to wastewater treatment facilities. The intuitive interface provides easy navigation and management, enabling users to monitor gas levels in real-time.

The 5100 series incorporates advanced communication technologies, including Modbus, RS-485, and Ethernet protocols. This facilitates seamless integration into existing control systems and enhances remote monitoring capabilities. Users can access real-time data and alarm notifications from any web-enabled device, ensuring prompt responses to potential gas leaks.

In addition to the 5100 series, the T12020 model serves as a robust solution for environmental and indoor air quality monitoring. It features similar advanced sensor technologies and offers additional applications, including HVAC control and indoor space safety management. This model provides essential data for building management systems, contributing to energy efficiency and improved air quality for occupants.

Overall, the Sierra Monitor Corporation’s 5100 series and the T12020 model exemplify the company’s dedication to innovation and safety. With a focus on reliability, precision, and user-friendly design, these products set a high standard in the field of gas detection and industrial monitoring, making a significant impact on enhancing workplace safety and operational efficiency.
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