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Function and Calibration Check for Ligno-Scanners
All pinless meters from Lignomat are built with high quality components, micro-processor
based, to guarantee stable calibrations for many years of usage. All meters from Ligno-
mat internally check and if necessary adjust the calibration before each reading. There-
fore, the meters are not set up to be re-calibrated manually by the user.
Before the battery is drained completely and the meter will not give any more values, a
warning sign appears in the middle of the display, indicating the battery should be re-
placed soon.
Function Test: Pinless measurement functions can be tested for open and closed circuit
connections manually without using the check block.
Calibration Verifi cation: Pinless measurements can be tested for calibration accuracy
with check block TS available from Lignomat.
For sensitive testing we recommend using the check block before and after a test series.
Every time you check, the indicated value should be within +/- 1% of the test standard.
Manual function check for pinless meters: Step 1 and 2
Calibration verifi cation for pinless meters: Step 3
Step 1: Open circuit check. Set the meter to pinless mode,
choose code # 50. Hold the meter in the air to make sure no
material is touching the measuring plates. When the READ
key is pressed, a low moisture value of 5.4% should be indi-
cated with SCAN/Min to the left side of the display. For 1/4”
and the 3/4” depth the same value should appear.
Step 2: Closed circuit check. Place the pinless meter on your
forearm and press the READ key. A high moisture value should
be indicated. An additional meter check can be performed by
measuring a ream of paper. If the paper test is done repeatedly
with the same setting, the indicated value should not vary sig-
nifi cantly over the course of a year. This can be used to check
consistancy / accuracy of the pinless calibration.
Step 3: Lignomat off ers an external calibration check block TS
for all Lignomat pinless meters. The check block for pinless
meters from Lignomat is a material plate which produces a
defi ned reading, when the meter is lightly pressed against its
surface.
If step 1, 2 or 3 fail either the battery needs to be replaced or the meter is defective. Call
customer service 800-227-2105.
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