Troubleshooting

WARNING!

When troubleshooting, follow all proper safety precautions. Use proper eye protection and hand protection at all times.

Unit is not reaching higher flow setpoint

Pressure may be less than pressure specified on order

Meter may not be the correct size

Meter may not be calibrated for correct gas

Gas piping may be too small for required flow

Adjust regulator using a manometer to set correct pressure while gas is flowing and meter is open

Call SSi at (513) 772-0060 to discuss a different size (model) of flow meter

Verify Calibration Report for gas calibration. If the gas is different than the gas you are flowing through the meter, contact SSi at (513) 772-0060 to discuss a recalibration.

Verify that the plumbing is adequate for the maximum flow required through the meter.

Unit is indicating that there is gas flow when no flow should be present

Zero value is not set on the meter (if gas supply is shut off)

The shutoff valve may be located upstream of the flow meter. This causes a zero drift condition since there is no pressure on the meter.

Verify that the hand valve for gas supply is closed. If flow is still showing, perform the zero calibration procedure as shown in the manual.

• SSi recommends that the shutoff valve be moved downstream of the meter so that gas pressure on the meter is always available. The error will correct itself when gas pressure is supplied to the meter.

• Another option is to perform a Zero Calibration. See the Zero Adjustment & Calibration section on page 1 for more details.

Unit is indicating that there is no gas flow when calling for a flow setpoint

Hand valve for gas supply may be closed

If a solenoid is used, solenoid may not be energized

Restrictions may be present downstream in the gas supply

Open hand valve.

Ensure that solenoid is energized.

Check for issues such as exhaust gas outlet restriction, and correct any problems.

Unit indicates that pressure is dropping as flow increases.

Insufficient gas flow to maintain constant pressure.

Verify that there is sufficient gas supply to the meter to maintain a constant pressure

Unit is not communicating

Communications may not be configured correctly

Verify RS485 wire polarity

Verify address and baud rate

Verify that only one meter has address set to 1 on the RS485 loop

Unit is not reaching setpoint

There may be insufficient gain

Insufficient pressure may be supplied

Verify gain is high enough; adjust bias as needed

Adjust the pressure to the pressure indicated on the meter and the Calibration Report. Verify the pressure at the high pressure port.

Setpoint cannot be changed directly from the eFlo control panel

An analog setpoint signal may be wired and overwriting manual setpoint

A master device wired to the eFlo may be overwriting manual setpoint

Ensure that an analog input signal to the eFlo is not wired and overwriting manual setpoint

Ensure that no device is actively writing the setpoint via communications