Why does the Process Value change abnormally on my Extech Instruments Controller?
If the Process Value of your Extech Instruments Controller changes abnormally, it might be due to Electromagnetic (EMI) or Radio Frequency (RFI) interference. To address this, protect the controller using arc suppressing external circuitry to eliminate high voltage spikes, ensure the sensor and power wiring are separated, and ground the heaters.
What to do if my Extech Instruments 96VFL Controller has no heat or output?
If your Extech Instruments Controller displays no heat or output, begin by checking the wiring and the fuse. Also, inspect the heater itself for any defects.
Why are the LEDs and display not lighting up on my Extech Instruments 96VFL?
If the LEDs and display on your Extech Instruments Controller are not lighting up, check the power connection first. If the issue persists, the controller may have failed and require servicing.
What to do if the keypad is not functioning on my Extech Instruments Controller?
If the keypad on your Extech Instruments Controller is not functioning, the keypad might be locked or defective. Check the ‘LOCK’ parameter. If it is not locked, the unit may require service.
How to fix process value unstable on Extech Instruments Controller?
If you are experiencing an unstable process value with your Extech Instruments Controller, it is likely due to improper PID tuning. You should tune the controller to correct this.
Why is entered data lost on my Extech Instruments 96VFL?
If the entered data is lost on your Extech Instruments Controller, it could be due to an EEPROM error caused by EMI or RFI interference. Service is required to resolve this issue.
General| Output Power | <1mW |
|---|---|
| Laser Class | Class II |
| Power Source | 2 x AAA batteries |
| Measurement Range | 0.05 to 100 m |
| Operating Temperature | 0 to 40 °C |
Information on connecting the controller's inputs, outputs, and power.
Explanation of the PV and SV display digits on the front panel.
Description of control and alarm output options and their functions.
Overview of programming menus and importance of controller tuning.
Information on customer support, documentation, and warranty.
Critical safety information and warnings for installation, wiring, and maintenance.
Step-by-step guide for mounting the 48VFL model into a panel.
Step-by-step guide for mounting the 96VFL model into a panel.
Crucial safety advice for wiring to prevent injury and damage.
Specific instructions for connecting AC power to the 96VFL and 48VFL models.
Wiring details for connecting thermocouple sensors to the controller.
Wiring instructions for optional 4-20mA analog input signals.
Wiring guide for connecting RTD sensors (2, 3, or 4 wire).
Wiring diagrams and explanations for control relay outputs (OUT 1, OUT 2).
Instructions for wiring the optional pulsed DC trigger output.
Details on wiring optional analog outputs (4-20mA).
Wiring instructions for the alarm relay outputs.
Detailed description of the 96VFL model's front panel elements and indicators.
Detailed description of the 48VFL model's front panel elements and indicators.
Explanation of the functions of each key on the controller's keypad.
Explanation of the Process Variable (PV) and Setpoint (SV) displays.
Explains the 'A1', 'A2' Alarm, 'C1', 'C2' Control, 'MA' Manual, and 'AT' Auto Tune status LEDs.
Guidance on connecting various input and output types to the controller.
Importance of programming and tuning for optimal process control.
Primary relay, secondary relay, and DC trigger output functionality.
Details on using the 4-20mA analog output option for process control.
Explanation of the simple ON-OFF control method and hysteresis.
Introduction to PID control and its three key elements (P, I, D).
How PID control is applied to relay outputs using time proportioning.
Factors affecting proportional control, including Proportional Band (Pb).
How the dead band (db) parameter controls simultaneous ON states of outputs.
General information on navigating and using the controller's programming menus.
Step-by-step instructions for accessing and moving through programming menus.
SP, A1SP, A2SP, and Auto Tune parameter configurations.
Manual Control (HAnd) and Output Level (oUtL) parameters.
Soft start setpoint and output level configurations.
Configuration and overview of the Ramp-to-Setpoint feature.
Proportional, Integral, and Derivative settings for PID control.
Ct (Cycle Time) and HYS 1/2 (Hysteresis) parameter settings.
Alarm hysteresis (A IHY, A2HY) and dead band (db) parameter settings.
Setpoint offset (SPOF), PV offset (PYOF), and Parameter Lock (LOCY).
Input type, control action, and limit configurations.
Alarm function, mode, and timer format settings.
Detailed guide on selecting the 'TYPE' parameter for hardware configuration.
Explanation of how Low/High Limits affect the Proportional Band and operation.
Lists and describes various alarm functions like High, Low, and Deviation.
Explains Standby and Latch modes for alarm behavior.
How alarm relays function as ON/OFF timers.
LnLo: Linear input low display setting for analog inputs.
LnH: Linear input high display setting for analog inputs.
Procedure and parameters for automatic PID tuning.
Normal operation where the controller automatically adjusts output.
How to manually adjust control outputs from 0.0 to 100.0%.
Troubleshooting for OPEN, AdEr, and At Er errors.
Resolving issues with keypad, value stability, output, and display.
Troubleshooting abnormal process value changes and data loss.
Steps to control oven temperature using the controller.
Specific parameter settings for the heating process example.
Overall specifications including display, power, and dimensions.
Detailed specifications for thermocouple input types and ranges.
Detailed specifications for RTD input types and ranges.
Detailed specifications for analog input types and ranges.
Specifications for relay and DC trigger control outputs.
Specifications for manual tuning parameters (Pb, Ti, Td, etc.).
Specifications for alarm relay outputs.
Specifications for analog output.
Information regarding the two-year limited warranty.
Details on calibration and repair services offered.
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