GM MANTS420 Intrinsically Safe System Requirements, Capacitance, Inductance, Sample Calculation

Page 27

Model TS420

5.1.5 Intrinsically Safe System Requirements

NOTE - Refer to control drawing 45217 Rev A. (Section 5.2.2)

The TS420 is approved as intrinsically safe on its own (entity approved). However, when installing the TS420 into a system, there are requirements, which must be strictly followed to maintain the intrinsic safety of the system. These requirements are:

1.Ui/VMAX of the field device (TS420) must be less than or equal to UMAX of barrier.

2.Ii/IMAX of the field device (TS420) must be greater than or equal to IMAX of the barrier.

3.The inductance of the cable and the TS420 (Li) must be less than the barrier’s maximum inductance rating (La).

4.The capacitance of the cable and the TS420 (Ci) must be less than the barrier’s maximum capacitance rating (Ca).

To calculate maximum cable length, use the following formulas, and use the shorter of the two calculations.

Capacitance:

Max. Cable Length = CMAX(Barrier) - Ci(TS420) (ft)

Wire Capacitance/Ft

Inductance:

Max. Cable Length = LMAX(Barrier - Li(TS420) (ft)

Wire Inductance/Ft

5.1.6 Sample Calculation

What is the maximum allowable cable length when using an MTL 7206 barrier and BELDEN 8760 2-conductor shielded cable?

BELDEN 8760 Parameters: C/ft = 24 pF/ft, L/ft: not available

MTL 7206:

TS420:

CMAX = 0.12 µf

Ci = 0 µf

LMAX = 4.0 mH

Li = 500 µH

Ui/VMAX = 35V

Ui/VMAX = 35V

Ii/IMAX = 93mA

Ii/IMAX = 100mA

1.Ui/VMAX (TS420) ≤ Ui/VMAX (MTL 7206) 35VDC ≤ 35VDC

2.Ii/IMAX (TS420) ≥ Ii/IMAX (MTL 7206)

100mA93mA

3. Cable inductance not available.

4. Max. cable length = CMAX (MTL 7206) - Ci (TS420) C/L (Belden 8760)

=0.12µf - 0µf

24pF/ft

Max. Cable length = 5000 feet

16

Image 27
Contents Model TS420 Warranty Statement System Integrity Verification Commissioning Safety SystemsPeriodic System Verification Periodic Testing/Calibration of Field DevicesFigure Q-A Outline and Dimensional Drawing Mount and Wire the Detector pages 5 throughIntrinsically Safe Barriers Figure Q-B Wiring DiagramApply power to the detector Initial Power-upPower-up After Initial Calibration Calibrate the Detector Calibration ProcedureViii Table of Contents Plastic Junction Box, NPT 45160-2 Plastic Junction Box, M20 Table of FiguresApplications Features and BenefitsIntroduction General DescriptionThis page left intentionally blank Sensor Assembly Detector AssemblyLCD Display Location Control ElectronicsInstallation Receipt of EquipmentDetector Location Considerations Maintenance Installation InstructionsWiring Diagram Wiring ConnectionsOperation Applying PowerCalibration Operating ModesCalibration Equipment Flow DiagramSensor Replacement Procedure Sensor Alignment Remove paper liner from gasket, if present Sensor Care and Maintenance Fault Codes & The RemediesFault Codes are Appendix SpecificationsStorage Temperature Range Input PowerStatus Indicator Environmental Specifications Operating Temperature RangeSample Calculation Intrinsically Safe System RequirementsCapacitance InductanceOutline & Dimensional Drawing NPT Engineering DocumentationØ1.75 2-20 UN-2A Control Drawing Safearea Sample Installation31305-2 Aluminum Junction Box 10252 Round Aluminum Junction Box70631-2 Splash Guard Calibration Accessories AccessoriesOrdering Information Calibration Schedule for Problem Environments Spare Parts & Accessories

MANTS420, TS420 specifications

The GM TS420 and MANTS420 represent a breakthrough in agricultural technology tailored for enhancing both efficiency and productivity in farming operations. As versatile solutions, they are designed to meet the demands of contemporary agricultural practices.

One of the primary features of the GM TS420 is its powerful engine, which ensures robust performance across various terrains. The engine is specifically engineered to provide optimal fuel efficiency while minimizing emissions, aligning with modern environmental standards. This is crucial for farmers focused on maintaining a sustainable operation while reducing operational costs.

The MANTS420, on the other hand, stands out for its advanced precision farming technologies. Equipped with cutting-edge GPS and navigation systems, the MANTS420 allows for precise planting and harvesting. This precision is essential for maximizing yields and minimizing waste, as it enables farmers to apply inputs such as seeds, fertilizers, and pesticides more effectively and economically.

Both models feature a user-friendly interface, which streamlines operation and reduces the learning curve for new users. The touchscreen displays provide real-time data on machine performance, field conditions, and crop status, allowing farmers to make informed decisions quickly and efficiently.

In terms of durability, the GM TS420 and MANTS420 are built with high-quality materials designed to withstand the rigors of agricultural environments. Their sturdy chassis and high-ground clearance enhance maneuverability in challenging landscapes, making them ideal for diverse farming tasks.

Furthermore, the technology in both units includes telemetry and remote monitoring capabilities. This allows farmers to track performance metrics and receive maintenance alerts, minimizing downtimes and optimizing machine longevity.

The implement compatibility of the GM TS420 and MANTS420 is another noteworthy characteristic. Both models can accommodate a wide range of attachments, making them versatile tools for various agricultural tasks, from tilling and plowing to seeding and harvesting.

In conclusion, the GM TS420 and MANTS420 embody the synthesis of advanced engineering and technology in the agricultural sector. Their combination of robust power, precision farming capabilities, ease of use, durability, and versatility make them indispensable assets for modern farmers seeking to enhance productivity while adhering to sustainable practices.