- Unit Weight 3 lbs
Frequently Asked Questions
Make sure the chart is not hung up or restricted.
Make sure the pen does not have too much tension, pinching the chart to the dial plate.
Make sure there is a good battery being used and it's in correctly.
Make sure the center strip of the chart is inserted properly into the black center hub of the recorder, making sure the chart is not ripped or torn.
Is Pen Arm screw secure?
Is the Chart Recorder sitting on or mounted to a surface prone to vibration?
For Temperature units try removing the unit from the application and placing it in an isolated, low air flow environment like a zip lock freezer bag or desk drawer. If the pen traces straighten out, the traces may have actually been caused by the changes in your application.
The chart may be hung up or restricted, possibly caused by a rip on the outer edge of the chart or the chart may be caught between the arm and pen arm platform.
Incorrect chart installed for the selected chart speed.
Manually advance the chart one full rotation with the chart rotation button to ensure that the gears are not binding or slipping.
What is the tolerance of the unit it is being compared to?
It's ok if the unit is within the sum of the two tolerances
Remember that the unit's tolerance speaks to the Chart Recorder only, there is any additional that applies to the probe
Has an outside calibration house attempted calibration? It may not have been adjusted properly
When was the last time the unit was sent to the Dickson Calibration Lab for a recalibration?
Walk through zero adjustment, found in the manual
For units with Pen Adjustment - rotate screw to adjust the unit to match another unit of greater accuracy after both units have stablized in the same environment.
Chart Recorders - make sure the correct chart is being used.
K-Thermocouple capable units are capable of using any K-type thermocouple probe or extension but keep in mind that long extensions to extend the distance may require a Zero adjustment. (Refer to manual)
As a general rule: If the unit is not responding properly, and you have more than one thermocouple, swap probes to see if it is the probe or the unit that is defective.
Make sure the output signal of the transmitter is calibrated to its full measuring range.
Make sure the range selected on the recorder matches the transmitter exactly and that the proper chart is being used.