Shortridge Instruments Airdata ADM-870 User Manual

Name: Shortridge Instruments Airdata ADM-870
Brand: Shortridge Instruments
Rating: 5 (1 reviews)

56 pages

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ADM-870 05/23/08

Shortridge Instruments, Inc.

7855 East Redfield Road / Scottsdale, Arizona 85260-3430

Phone (480) 991-6744 • Fax (480) 443-1267

www.shortridge.com

AIRDATA

™

MULTIMETER ADM-870

ELECTRONIC MICROMANOMETER

AIR FLOW • VELOCITY • PRESSURE • TEMPERATURE

OPERATING INSTRUCTIONS

Default Chapter2
- Table of Contents2
1 Introduction5
2 Specifications6
3 External Features8
- Keypad8
- Features on Sides and Back of Meter8
- Adm-870 Meter Front and Back10
4 Display Messages and Prompts11
- Read Prompts11
- Measurement Readouts11
- Function Readouts12
5 Using the Airdata Multimeter16
- Automatic Readings16
- Memory/Average/Total Function16
- Automatic Reading Memory17
- Speed-Read Feature17
  - Speed-Read Operation18
6 Velocity Measurement19
- Velocity Correction Factors19
- Pitot Tube Velocity Measurement20
- Airfoil Probe21
- Pitot Tube21
  - Duct Velocity Using Airfoil Probe22
  - Fume Hoods and Safety Cabinets - Airfoil22
- Airfoil Probe22
  - Exhaust Hoods - Airfoil Probe23
  - Laminar Flow Workstations - Airfoil Probe23
- Velgrid Air Velocity23
- Velgrid Assembly25
- Velocity: Local Density Vs Standard Density (Mass Flow)26
7 Pressure Measurement27
- Differential Pressure27
  - Pitot Tube "Velocity Pressures27
  - Pitot Tube "Static Pressures27
- Static Pressure Probe27
  - Pitot Tube "Total Pressures28
- Absolute Pressures28
8 Temperature Measurement29
- Temprobe29
- Airdata Multitemp29
- Adt442 Temprobe29
- Airdata Multitemp30
9 Air Flow Measurement31
- Flowhood Function31
- Backpressure Compensation31
10 Flowhood Assembly32
- Unpacking32
- Frame Channels32
- Fabric Tops32
- Support Assembly32
- Handle33
- Frame Storage34
- Flowhood in Case34
- Flowhood Assembly35
- 2X2 Frame Assembly36
- 1X4 Frame Assembly36
- 1X5 Frame Assembly37
- 3X3 Frame Assembly37
11 Flowhood Operating Procedure38
- Air Flow - Nonbackpressure Compensated Readings38
- Air Flow - Backpressure Compensated Readings38
  - Error39
12 Special Balancing Procedures40
- Proportional Balancing40
- Large Return Air Grilles40
- Kitchen Exhaust Hoods40
  - Range Exhaust Filters and Grease Extractors40
- Constant Volume Controllers40
- Linear Slot Diffusers41
- Sidewall Registers41
- 14"X14"X14" SHORT TOP SET41
- System Problems41
13 Correction Factors and Conversion Formulas42
- Barometric Pressure Density Correction - Local Density42
- Temperature Density Correction42
- Relative Humidity Correction42
- Hot Wire Anemometer Versus Airdata Multimeter42
14 Meter Accuracy Field Testing44
- Meter Zero Function44
- Differential Pressure Function44
- Absolute Pressure Function44
- Air Flow Accuracy44
- Duct Traverse Comparisons, Inclined Manometer, Micromanometer44
- Duct Traverse Using the Airdata Multimeter45
- Backpressure Compensated Comparison Readings45
- Nonbackpressure Compensated Comparison Readings45
15 Meter & Flowhood Maintenance46
- Meter Maintenance46
- Flowhood Maintenance46
16 Recalibration and Repair Information47
- Air Balance Manuals & Training Programs47
- Warranty48
Appendix A - Nist Velocity Testing49
Appendix B - Laboratory Differential Pressure Test50
Appendix C - Battery Test Procedure51
- Replacement Parts List53
- Adm-870 Index55

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Shortridge Instruments Airdata ADM-870 Specifications

General

Resolution (Temperature)	0.1 °F (0.1 °C)
Data Logging	Yes
Storage Temperature	-4 to 140 °F (-20 to 60 °C)
Display	LCD
Resolution (Velocity)	1 fpm
Resolution (Pressure)	0.001 in. w.c.

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Shortridge Instruments Airdata ADM-870 User Manual

Table of Contents

Questions and Answers:

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