What to do if TSI Incorporated 4140 Measuring Instruments flow readings fluctuate greatly?
If you observe significant fluctuations in flow readings, it could be due to actual flow variations. To address this, try improving the inlet conditions or increasing the display averaging time.
Why does my TSI Incorporated 4140 Measuring Instruments temperature read high at low flows?
A high temperature reading at low or zero flows can occur because the temperature sensor is being heated by the flow sensor. Once the flow rate through the flowmeter exceeds 1 Std L/min, the temperature value will accurately reflect the actual gas temperature.
What to do if my TSI Incorporated 4140 display shows flows over-range?
If the display indicates flows are over-range even when no flow is passing through the flow tube, the sensor may be damaged. In this case, return the flowmeter to TSI for service.
How to fix no display on TSI Incorporated 4140?
If there is no display, ensure that the unit is switched on. Also, verify that the AC adapter is properly plugged in or check the power source connected to the mini-DIN connector.
Details powering the flowmeter via AC adapter or mini-DIN.
Instructions for connecting filters and flow tubes to the flowmeter.
Information on using TSI setup software for parameter changes.
How to obtain flow rate data via display, RS232, or analog output.
How to inspect and clean the flow sensor using compressed air.
Details measurement range, accuracy, and resolution for flow.
General| Weight | 1.3 lb (0.59 kg) |
|---|---|
| Operating Temperature | 32 to 100 °F (0 to 38 °C) |
| Accuracy | ±10% |
| Operating Humidity | 0 to 95% non-condensing |
| Power Supply | AC adapter |
| Battery Life | > 8 hours (alkaline batteries) |
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