2022.11.18 REV. MASS FLOW METER OPERATING MANUAL 23
Issue: Can I use the meter with other gases?
Action: Yes! Your flow meter is designed specifically to work with many dierent gases. Gas Select™ (MENU → SETUP → Active
Gas
) includes up to 130 preloaded gases and gas mixes, or you can define your own using ™ (page 13).
If your desired gas is not listed on page 24, please contact support to ensure compatibility (page 2).
Serial Communications
Issue: I can’t communicate to the device when it is connected to my PC.
Action: 1. Make sure the baud rate your software and COM port required is the one your flow meter is using (MENU → SETUP →
RS-232 Serial or RS-485 Serial → Baud Rate).
2. Check the flow meter unit ID (MENU → SETUP → RS-232 Serial or RS-485 Serial → Unit ID) to make sure you are
addressing it properly with your serial commands.
3. Check the pinout (common pinouts are listed starting from "Pinouts" on page 27).
4. Make sure the number matches the one your software is using to connect to the flow meter.
5. On the external serial communications device (computer, PLC, etc.), be sure that the flow control (handshaking)
settings are set as on page 18.
Still experiencing issues? Please contact support (page 2).
Maintenance
Cleaning
Your flow meter does not require cleaning, provided that it has been flowing clean, dry gas. If necessary, the outside of
the device can be cleaned with a soft dry cloth.
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Caution: If you suspect that debris or other foreign material has entered your device,do not take apart the flow body to
clean it, as this will negate its NIST-traceable calibration. Please contact support for cleaning (page 12).
Recalibration
The recommended period for recalibration is once every year. A label located on the back of the device lists the most
recent calibration date. This date is also stored inside your flow meter and is visible by selecting MENU → ABOUT → About
Device.
When it is time for your device’s annual recalibration, contact support (page 2) with your device’s serial number and
your contact information.
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