SDMN5 Device Pressure Measurement

Rich McFarland, a technical trainer, explains the SDMN5 device, focusing on its setup, operation, and reading measurements. He emphasizes the importance of setting the device to inches of water column and demonstrates how to connect and interpret readings from P1 and P2. The tutorial concludes with tips for effective use, especially for measuring total static pressure.

What is the first step in using the SDMN5 device?

• Connect it to a power source

• Turn it on

• Set it to PSI

• Calibrate it

Why is it important to set the device to inches of water column?

• To save battery life

• To calibrate the device

• To avoid incorrect measurements

• To ensure accurate PSI readings

What does the P1 reading represent on the SDMN5?

• The total pressure

• The supply pressure

• The return pressure

• The differential pressure

How can you view the P2 reading on the device?

• By holding the device upside down

• By pressing the zero button

• By switching the device off and on

• By pressing the P1 P2 button

What should you do before connecting P2 to the return?

• Switch to PSI mode

• Zero the device again

• Ensure P1 is at the top

• Turn off the device

What does a negative reading on P2 indicate?

• Device malfunction

• Incorrect calibration

• Lower return pressure

• Higher supply pressure

What is the purpose of the total or differential reading?

• To calculate the average pressure

• To measure battery life

• To reset the device

• To determine the pressure difference

When is it necessary to use only one reading on the SDMN5?

• When the device is off

• When calibrating the device

• When using PSI mode

• When measuring gas pressure

What is the correct method to measure total static pressure?

• Using only P1

• Using only P2

• Using both P1 and P2

• Using the zero button

What should you do if you want to measure only one pressure point?

• Turn off the device

• Use the hold function

• Use only one of P1 or P2

• Switch to kPa mode