This page is here to provide general data that we use in the industry. It will be updated frequently. M&B Systems
takes no responsibility for the use of this data. It is here for entertainment purposes only.
Circumference C = πd, in which π is 3.1416 and d the diameter
Triangle A = (ab)/2 , in which a is the base and b the height
Square A = a2, in which a is one of the sides
Rectangle A = ab, in which a is the base and b the height
Circle A = πr2, in which π is 3.1416 and r the radius
Cube V = a3, in which a is one of the edges
Pyramid V = (Ah)/3, in which A is the area of the base and h the height
Sphere V = (4πr3)/3, in which π is 3.1416 and r the radius
C from F TC = 5/9 (TF – 32)
F from C TF = 9/5 TC + 32
1 inch = 2.54 centimeters
1 ft² = 144 in²
1 ft³ = 1728 in³
1 km = .621 miles
1 meter = 39.37 inches
1 mile = 5280 feet
1 acre = 43,560 feet²
1 cubic ft = 7.481 gallons
1 gallon = 231 cubic inches
1 gallon water = 8.34 lbs
1 ft3 = 7.48 gal water
1 "Hg = 2.035 PSI
1 PSI = 14.69 Atm
1 GPM = 7.45 CFM
1 Lb = .4536 Kg
1Kg = 2.2045 lbs
1 Liter = 33.8 fl oz = 1.06 qt
1 Hp = 745.7 Watts
1 Hp = 42.44 Btu's/min
1 Hp = 33,000 ft lbs/min
1 Kw = 3413 Btu's/hr
1 Kw = 1.34 Hp
1 Btu = 778 ft lbs
1 Ton = 12,000 Btu/hr or 200 Btu/min
Kele.com
Precon Thermistor Resistance Chart
Omega.com
Kele.com
Precon 100 Ohm RTD Resistance Chart
This is for Straight Through.
This is for CrossOver. When you need to connect two
ethernet devices directly, without a hub.
Ohms = Volts ÷ Amps
Ohms = Volts² ÷ Watts
Ohms = Watts ÷ Amps²
Amps = Volts ÷ Ohms
Amps = √(Watts ÷ Ohms)
Amps = Watts ÷ Volts
Volts = Amps × Ohms
Volts = √(Watts × Ohms)
Volts = Watts ÷ Amps
Watts = Volts × Amps
Watts = Volts² ÷ Ohms
Watts = Amps² × Ohms
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| PcmNet Ethernet Configuration |
Basic definitions and Ethernet
explanations, as well as instructions on setting up the PcmNet for
Ethernet communications. April 03. |
| PcmNet Communication Summary | HTTP commands and protocols. Jul 03. Rev2 |
| PcmNet Peer to Peer Application Notes | Setting up the PcmNet for Peer to
Peer communication, explanining all screens that need to be filled out.
How to share point data among peers. Oct 03. |
| PcmNet Manual | Hardware specifications for PcmNet v
7.xx.
Feb 05. |
| PcmNet Control Rules Manual | Reference document for PcmNet Control
rules and operand reference. Jul 03. |
| PcmNet Upgrade Procedures | Firmware Upgrade procedures for
PcmNet. Sept 03. |
| PcmNet Graphic Layout | Visual / Graphic layout of all
connections on PcmNet, showing power, analog in and out, digital in and
out, Modbus pins, serial port, ethernet port, etc. Rev. 0302 |
| Pcm100 Graphic Layout | Visual / Graphic layout of all
connections on Pcm100, showing power, analog in and out, digital in and
out, serial port, modem port, etc.
|
| Rly80 Graphic Layout | Visual / Graphic layout of all connections on Rly 80 |
| MCB80/180 Graphic Layout | Visual / Graphic layout of all connections on MCB80/180 |
| Rly180 Graphic Layout | Visual / Graphic layout of all connections on Rly 180 |
| Aixp Graphic Layout | Visual / Graphic layout of all connections on Aixp, Analog input expansion board. |
| Application & Engineering Users Guide | Comprehensive explanation of Firmware
and board setup of PcmNet. Covers Ai, Ao, Di, Do setup, sensor
setup, PID loops, logic structure, Modbus, Peer to Peer, datalogs,
connectivity, and User Applications. Rev. 0502 |
| Modbus Wiring Diagram | Simple line diagrams for Modbus
connectivity to various devices. Mar 04. |
| Mcb80 Modbus Register List | Register list setup when converting
Mcb80's on MST200, to Modbus protocol. Aug 03. |
| Kele: Thermistor - ST-A | 10k Type III Thermistor - All Purpose
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| Kele: Thermistor - ST-O | 10k Type III Thermistor - Outside Air
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| Kele: Thermistor - ST-RS | 10k Type III Thermistor - Strap on
|
| Kele: 100 Ohm RTD - ST-O-81 | 100 Ohm Platnium RTD in Outside Air
Box
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| Kele: 100 Ohm RTD - T81U | 100 Ohm RTD Transmitter
|
| Kele: HW10K - 3% Humidity | 3% Wall Mount Humidity Transmitter
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| Kele: SC - 200-1 CT | 200 Amp Current Transducer - 4-20mA
out
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| Kele: AVS 200 | Air Velocity Probe 4-20mA out
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| Kele: PTX-1 | Pressure Transducer 4-20mA out
|
| Kele: PWA -1A | Output Transducer, Pulse to Analog
out, 4-20mA
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| Kele: Idec PS5-R | 24VDC & 5VDC Power Supplies
|
| Belden: 8770 Instrumentation Cable | 3 wire, 18 AWG wire with Shield and Drain
|
| Belden: 8771 Instrumentation Cable | 3 wire, 22 AWG wire with Shield and Drain
|
| Belden: 9418 Instrumentation Cable | 4 wire, 18 AWG wire with Shield and Drain
|
| Iterm | Iterm.exe updated file |