What to do if my Fox Thermal FT3 Measuring Instruments unit will not power-up?
If your Fox Thermal Measuring Instruments unit won't power up, begin by inspecting the fuse (F1) located next to TS1 on the main board. Also, verify that the correct power supply voltage is present at TS1 on the main board. If the fuse is intact and the unit still fails to power on, it is recommended to call Fox Thermal for further support.
What to do if my Fox Thermal FT3 meter does not initialize?
If your Fox Thermal Measuring Instruments meter doesn't initialize, electromechanical interference might be the reason. Start by checking the meter's power cycles. Access the Engineering screens by pressing and releasing F1 and F2 simultaneously. Navigate to screen #23 by pressing F1 and note the power cycle value. After returning to normal operation by pressing F4, monitor the meter until the issue reappears. Revisit screen #23 to check for an increase in power cycles, which would indicate that the microprocessor is resetting due to EMI electrical noise. Make sure to check the grounding and routing of both power input and output cables.
Why is the flow measurement erratic or fluctuating on my Fox Thermal FT3 Measuring Instruments?
Erratic or fluctuating flow measurements on your Fox Thermal Measuring Instruments can be due to several factors. It could be caused by: * Very turbulent flow. * A dirty sensor. * A broken sensor. * The probe not being mounted securely. * A malfunction in the flow meter. * Incorrect meter installation. To address this, you can try increasing dampening using the filter settings, cleaning the sensor, or remounting the probe securely. If these steps don't resolve the issue, the flow meter may need repair or re-installation according to the instructions.
What to do if the flow measurement seems low on my Fox Thermal Measuring Instruments?
If the flow measurement on your Fox Thermal Measuring Instruments seems low, it could be due to the probe not being oriented properly or a dirty sensor. Ensure the probe is oriented according to the installation instructions and clean the sensor.
What causes a display error on Fox Thermal FT3?
A display error on your Fox Thermal Measuring Instruments can be caused by a loose or damaged ribbon cable, damaged electronics, or the ambient temperature being outside the operating range. Visually inspect the ribbon cable. Operate the meter between -20 to 70°C. For damaged electronics, the meter or display may need to be returned for repair.
Why doesn't my Fox Thermal FT3 Measuring Instruments meter read up to full scale?
If your Fox Thermal Measuring Instruments meter isn't reading up to full scale, the calibration table might be corrupted. To resolve this, check the calibration table for any corrupted locations. Enter the password '9111', then navigate to the Flow Parameters 2 menu screen and select CAL (F1). Cycle through the calibration table by selecting NXT (F1) to verify the entries match the calibration certificate. Also, check for a CRC error code.
How to fix a Fox Thermal FT3 Measuring Instruments meter that keeps power cycling?
If your Fox Thermal Measuring Instruments meter keeps power cycling, the issue might stem from the power supply, a malfunction in the flow meter, or electromagnetic interference (EMI). Here's what you can do: 1. Measure the power supply voltage to ensure it is stable and within the operating range. 2. Check if the meter power cycles. 3. Access the Engineering screens by pressing and releasing F1 and F2 simultaneously. 4. Navigate to screen #23 by pressing F1 and record the power cycle value. 5. Return to normal operation by pressing F4 and monitor the meter until the problem reappears. 6. Revisit screen #23 to check if power cycles have increased, which suggests the microprocessor is resetting due to EMI. 7. Inspect the grounding and routing of the power input and output cables. If...
Guide to initial setup, wiring checks, and parameter verification.
Visual representation of the meter's menu structure and navigation.
Diagram illustrating the main functions and connections of the FT3 meter.
Essential safety and handling guidelines before and during installation.
Detailed steps for correctly welding the branch fitting for perpendicular probe installation.
Critical safety warnings and general guidelines for electrical installations.
Specifications for connecting a 24VDC power supply.
Wiring diagram for 4-20mA outputs using an external power source.
Wiring instructions for Modbus RTU (RS485) communication.
Explanation of the different display screens and navigation in measurement mode.
Steps to enter the programming mode and access settings, including password entry.
Steps for scaling the analog 4-20mA output channels.
Step-by-step guide to performing the CAL-V™ calibration validation test.
Troubleshooting steps for issues related to meter power cycling.
Summary of potential problems encountered during meter installation.
List of alarm codes, their reasons, and recommended actions.
Technical specifications for flow accuracy, repeatability, and response time.
Procedure for returning a meter for service or recalibration.
Definitions of common terms and acronyms used in the manual.
General| Repeatability | ±0.2% of full scale |
|---|---|
| Display | LCD with backlight |
| Response Time | 1 second |
| Gas Compatibility | Air, Natural Gas, Biogas, and other gases |
| Accuracy | ±1% of reading |
| Power Supply | 24 VDC |
| Output | 4-20 mA |
| Enclosure | NEMA 4X |
| Pipe Size Range | 1/4 inch to 80 inch |
| Temperature Range | -40°F to +248°F (-40°C to +120°C) |
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