Sierra 860, 840, 830 instruction manual Performance Specifications, Physical Specifications

Page 66

Series 830/840/860 Instruction Manual

 

Appendix B Specifications

 

 

 

 

Control Range

840/860C

2 to 100% of full scale; valve shuts when flow drops below

 

2%

 

 

 

840 (NPT)

10 to 100% of full scale

Command Signal

0-5 VDC, 20 megaohms minimum input impedance

 

4-20 mA, 250 Ohms maximum input impedance, optional RS-485 digi-

 

tal signal standard on Model 860C

Output Signal

Linear 0-5 VDC, 1000 Ohms minimum load resistance

 

Linear 4-20 mA, 500 Ohms maximum loop resistance

Model 860

 

 

 

RS-485 Communication

Output signal; command signal; continuous K-factor (span) change;

 

discrete Auto-Balance, change RS-485 address; complete calibration

 

data and accumulated hours since last calibration; change PID re-

 

sponse; valve off; and many other functions including “cloning” of two

 

MFCs for perfectly matched performance

Model 860

 

 

 

Auto-Balance™ Circuitry

Automatic adjustment (manual or auto mode) of bridge resistors to re-

 

tain zero; occurs when valve is shut; maintains correct zero value if

 

power is interrupted

 

 

Performance Specifications

 

 

Accuracy

±1% of full scale including linearity over 15 to 25°C and 10 to 60 psia

 

(0.7 to 4 bara); ±2% of full scale including linearity over 0 to 50°C and 5

 

to 50 psia (0.3 to 10 bara); ±1% of full scale accuracy at a specific tem-

 

perature and pressure is available with special calibration; For the mod-

 

els 840 (NPT), the accuracies above are 1.5%, ±3%, and ±1.5%, re-

 

spectively

 

 

Repeatability

±0.15% of full scale

 

 

 

±0.5% of full scale for 840 (NPT)

Temperature Coefficient

0.027% of full scale per °F (0.05% of full scale per °C), or better

Pressure Coefficient

0.01% of full scale per psi (0.15% of full scale per bar), or better

Response Time

830 (all)

300 ms time constant; 2 seconds (typical) to within ±2%

 

 

of set point over 20 to 100% of full scale

 

840 (low, med)

300 ms time constant; 2 seconds (typical) to within ±2%

 

 

of set point over 20 to 100% of full scale

 

840 (high)

600 ms time constant; 4 seconds (typical) to within ±2%

 

 

of set point over 20 to 100% of full scale

 

840 (NPT)

800 ms time constant; 4 seconds (typical) to within ±5%

 

 

of set point over 20 to 100% of full scale

 

860 (all)

0.6 to 1 second to within ±2% of set point over 20 to 100%

 

 

of full scale

Physical Specifications

 

 

Wetted Materials

830 (all)

316 stainless steel, Viton® O-rings standard; Neoprene® and

 

der

4079 Kal-Rez®(or equivalent) optional; others on special or-

 

 

 

 

840/860

 

 

 

(low, med, high)

316 stainless steel, 430F stainless steel, Viton O-rings

 

 

 

 

IM-83/84/86-H

 

B-3

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Page 65 Page 67
Contents Table of Contents Customer Notice Table of Contents Table of Contents Troubleshooting List of Tables Table of Contents Using This Manual IntroductionIntroduction Safety Information Receipt of System ComponentsTechnical Assistance Series 800 Flow Sensing Principle Flow Paths through the TransducerSensor Temperature Distribution Installation Installation Overview Installing the Transducer Compression FittingsVCO Fittings VCR Fittings NPT Fittings and 1/2-Inch Connections All TypesWiring the Transducer Recommended Wire GaugesRecommended Wire Gauges Wiring Transducers with 20-Pin Card-Edge Connectors Input Output Signal ConnectionsInput Signal Connections Controllers Only Valve Purge and Valve Off Connections Controllers Only Depending on the valve voltage, connect as shown belowPin Connector Pin Designations Wiring Transducers with 15-Pin D-Connectors Input Power ConnectionsInput Signal Connections Controllers Only 13. Valve Purge and Valve Off 15-Pin D-Connector 15 -Pin D-Connector Pin Assignments Motor-Operated Valve Circular 10-Pin Connector 16. Motor-Operated Rotary Valve Connector 10-Pin ConnectorOperation Mass Flow Meter OperationMass Flow Controller Operation Electromagnetic Valve ControllersMotor-Operated Rotary Valve Controllers Mass Flow Controller Features Controller Auto Shut-Off FeatureOver-Range and Cold Sensor Lockout Circuit On-Off Control and Soft Start Option Soft Start Response TimesValve Purge Function Purging Non-Reactive GasesPurging Reactive Gases Operation Flow Path Maintenance Cleaning the Laminar Flow ElementLow Flow Transducer LFE Cleaning Low Flow TransducersMedium Flow Transducer LFE Cleaning Medium Flow TransducersHigh Flow Transducer LFE Cleaning High Flow TransducersNPT Transducer LFE Cleaning NPT-Type TransducersSensor Maintenance Sensor Cleaning and InspectionSensor Electrical Test Valve Maintenance Electromagnetic Valves Low and Medium Flow ControllersElectromagnetic Valves High Flow Controllers Maintenance Motor-Operated Rotary Valves 840 L, M and H series Valve Adjustment Procedure Maintenance Maintenance Transducer Calibration Troubleshooting Flow Meters and Flow Controllers with Electromagnetic Valves Flow Controllers with Motor-operated Rotary Valves Valve rotates continuouslyInstructions for Returning Your Instrument for Service Factory Calibration-All ModelsReturn Address Conversion of Flow Rate to Other T and P Conditions Example 1 Changing Standard ConditionsExample 2 Finding the Actual Flow Rate 14.7 460 + 10.00 = 3.47 lm 14.7 + Calculating For a Single Gas 880 Example Calculating Dual Gas Mixtures Important Note about K-FACTORSGas Tables and K-factors NEOC2H6O CH 3SH Appendix B Product Specifications Operating SpecificationsVDC Performance Specifications Physical SpecificationsValve plug standard Neoprene, 4079 Kal-Rez Transducer Mounting Dimensions Low Flow BodyMedium Flow Body High Flow Body Appendix B Specifications IM-83/84/86-H NPT Flow Body Flow Range, slpm100 200 Inlet Fnpt Appendix B Specifications

840, 830, 860 specifications

The Sierra 860, 830, and 840 are a series of rugged outdoor laptops designed for professionals who require reliable and powerful computing solutions in challenging environments. These laptops combine advanced technologies and robust construction to meet the demands of various fields, including engineering, military, field services, and outdoor research.

One of the standout features of the Sierra series is its rugged design. Constructed with military-grade materials, these laptops are highly resistant to shock, vibration, and extreme temperatures. They have undergone rigorous testing according to MIL-STD-810G standards, which ensures they can withstand harsh conditions whether in the field or during transport. Additionally, the IP65 rating guarantees protection against dust and water exposure, making them invaluable for professionals working in inclement weather or dusty environments.

The Sierra 860, 830, and 840 are powered by high-performance processors, delivering fast and efficient processing capabilities. Equipped with the latest Intel Core processors, including i5 and i7 options, these laptops can handle demanding applications and multitasking with ease. The robust memory options, ranging from 8GB to 32GB, ensure smooth performance for memory-intensive tasks.

Display quality is another critical aspect of these laptops. The Sierra series features high-resolution screens that offer bright, vivid colors and sharp details, making them ideal for tasks requiring precision, such as drafting and design work. The touch-enabled displays enhance user interaction, providing convenience in outdoor settings where traditional input methods may be challenging.

The Sierra laptops also include a comprehensive array of connectivity options, ensuring seamless integration with various devices. With multiple USB ports, HDMI output, and optional mobile broadband, users can easily connect to peripherals, transfer data, and maintain communication. The inclusion of enterprise-level security features, including biometric scanners and encrypted storage, ensures sensitive data remains protected.

Battery life is another crucial factor in fieldwork, and the Sierra series excels in this area. With long-lasting batteries, these laptops can operate for extended periods without needing a recharge, making them perfect for long outdoor excursions or remote job sites.

In summary, the Sierra 860, 830, and 840 combine ruggedness, high performance, and extensive connectivity options, making them exceptional computing solutions for professionals in various challenging environments. Their advanced technologies and robust constructions ensure they can tackle the demands of outdoor work while maintaining reliability and efficiency.
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