Delmhorst C-2000 User manual

C-2000
owners manual
WHEN ACCURACY IS THE POINT .
®
TM
TestEquipmentDepot.com

TABLE OF CONTENTS
2C-2000 Features
3Button Functions
3Check Calibration
4Set the Scale
4To Change the Set-Point
5Information About Your Readings
5To Check the Accumulated Readings
6To Reset Meter
6Applications
9 Temperature Correction
9Care Of Your Meter

C-2000 FEATURES
hDesigned to check the moisture content in lint cotton and
seed
hResistance technology recognized around the world as the
most accurate method for measuring moisture.
hAverages up to 100 accumulated readings
h4% –16% moisture range on lint cotton
h6%–20% moisture range on seed cotton
hDigital readout
hIncludes (1) 9-volt battery
hProven microcontroller circuit
hOne-year warranty
h60 years of proven quality, accuracy and service
Read Button
Calibration
Check Button
#
Set-Point
Button
$
Scale
Button
@
!
DELMHORST C-2000
2

BUTTON FUNCTIONS
! Read:
Reads the %MC value.
@ Check:
Checks the meter calibration. Displays the
average of up to 100 accumulated readings;
displays the highest stored reading; erases the
readings from memory.
# Set-Point:
Displays the current set-point. Also acts as an
arrow (scroll) key to increase the set-point
value in 1% increments. A buzzer will alert
you if the meter reads higher than the selected
%MC value.
$ Scale:
Displays the meter scale as
#
1(Lint) or
#
2
(Seed) cotton and acts as a toggle to change
between the two scales. Also acts as an arrow
key to decrease the set-point value.
CHECK CALIBRATION
hPress the calibration check button @ and read button !
simultaneously.Meter is in calibration if it displays
11.1%, ±.2, regardless of the scale setting.
When checking calibration, there is no need to disconnect the
external electrode.
If you check the calibration and the display does not read
11.1, it is likely an indication of a low battery. If this occurs,
change the battery immediately. Continued use with a low
battery may cause the meter to go out of calibration.If you
have a fresh batteryand the instrument still does not indi-
cate an acceptable calibration, return it to DELMHORST for
service. See Service for Your Meter section.
When the battery is replaced, the meter displays its software
version for one second and then turns itself off.After replac-
ing the battery, you must reset the meter as described in the
Resetting the Meter section.
3

TO SET THE SCALE
Set the scale for #1 Lint Cotton or # 2 Seed Cotton.
hTo change the scale, press the scale button
$ .The meter
will display the current scale for one second.
hPress and hold the scale button
$ to toggle between the
two scales.
hRelease the scale key
$ to stop at the desired scale.
Changing the scale will automatically reset the set-point value
to the default setting for that particular scale. Default settings
are as follows:
Lint Cotton – 7%
Seed Cotton – 12%
TO CHANGE THE SET-POINT
hTo change the set-point value press the set-point button # .
The meter will display the current set-point value for the
scale you have chosen for one second.
hToscroll forward to a higher value for that scale hold the
set-point button
# while the current set-point is displayed
and scroll to the set-point value desired.
hTo scroll backward through the set-point values, press and
release the set-point button
# .Within one second, press
and hold the scale button
$ .Continue to hold the scale
button
$ and the set-point will decrease.
hWhen scrolling in either direction, release the button to
stop at your desired set-point.
hAbuzzer sounds if the meter reads a %MC higher than the
set-point.
4

5
INFORMATION ABOUT YOUR
READINGS
The meter will accumulate up to 100 readings. After all 100
readings are “stored” it will not add new readings until the
memory has been cleared. It will also continue to display the
average of all 100 readings as a reminder that the memory
is full.
hTo add a reading to the sum of all the previously stored
readings, release the read button
! within 2 seconds.
When taking and storing readings for a specific material, be
sure to clear the meter before moving on to the next scale if
you do not want to group all of the readings together.
Moisture content of the samples is the primary factor affect-
ing meter readings. However,readings are also affected by
the following:
h
Type of cotton
h
Area where it is grown
h
Impurities
h
Compaction (density) around the electrode surfaces
h
Temperature of the sample
In order to minimize the effect of these factors and improve
the repeatability of the meter readings, keep in mind the fol-
lowing points:
h
Use samples with minimum of impurities.
h
Optimal accuracy may be obtained if meter readings
are checked against %MC by means of properly run
oven tests on the particular product being tested.
TO CHECK THE
ACCUMULATED READINGS
This feature displays the total number of all accumulated read-
ings for the given material you have chosen, the average of
those readings, and the highest stored reading.
hTo view the readings, press and release the calibration check
button
@ .First the meter displays the number of accumulat-
ed readings for one second, then the average of those read-
ings for two seconds. Then it displays the highest stored read-
ing for two seconds. The total “cycle” time is five seconds.

hTo keep the accumulated readings in memory release the cal-
ibration check button
@ before the total cycle time is com-
plete.
hTo erase readings, hold the calibration check button @ for
more than five seconds. The total, average and highest read-
ings will be displayed as above, followed by a zero to indicate
all readings have been erased.
TO RESET METER
hPress and release the calibration check button @ .
hWithin one second, press and hold the scale button
@ .
The meter will display a reset sequence as follows: “121”,
“8”, “1.1”, “11.1”. The last number, “11.1” is a cali-
bration check.
hResetting the meter clears the memory and restores
default settings.
APPLICATIONS
Testing Lint Cotton
hAttach the
#
52-E/C Sample Cup Electrode to the connector
on top of the meter.
hSet the scale for (
#
1) Lint Cotton and select a set point.
hPlace a small quantity of cotton in the sample cup. Press
the cotton firmly into the cup with your finger. The cotton
sample in the cup should be overflowing during the test,
even while you are pressing it with your finger.
hPress the read button
! and read the moisture content on
the display. The meter displays the %MC for two seconds.
Readings below 4% lint cotton will be displayed as a negative
number.Readings above 16% lint will be displayed as a
blinking “16.2%”. Both the underrange and overrange read-
ings should be disregarded. They will not be added to the
accumulated readings or used in calculation of the average
or highest reading.
6

Testing Seed Cotton
hAttach the
#
52-E/C Sample Cup Electrode to the connec-
tor on top of the meter.
hSet the scale for (
#
2) Seed Cotton and select a set point.
hPlace a small quantity of cotton in the sample cup. Press
the cotton firmly into the cup with your finger. The cotton
sample in the cup should be overflowing during the test,
even while you are pressing it with your finger.
hPress the read button
! and read the moisture content on
the display. The meter displays the %MC for two seconds.
Readings below 6% seed cotton will be displayed as a nega-
tive number. Readings above 20% seed cotton will be dis-
played as a blinking “20.2%”. Both the extreme low and
extreme high readings should be disregarded. They will not
be added to the accumulated readings or used in calculation
of the average or highest reading.
Tests made on seed cotton may not be as accurate as those
made on lint cotton. This is due to the fact that the seed cot-
ton sample is obviously made up of lint and seed, and the
quantity of seed may varyfrom sample to sample. Also, the
moisture content of the seed is usually higher than that of
the lint.
When testing seed cotton, direct contact is still made with
the cotton fiber only and not with the seed of the sample.
Variables in quantities and moisture content of the seed,
during calibration and in field tests, may affect the accuracy
and repeatability of the meter readings. The seed cotton
scale gives an indication of “total” moisture content (the
moisture content of the seed and the lint in a sample as
determined by oven tests) in the seed cotton sample. This
may be of interest only in buying and selling seed cotton
where some consideration may be given to the weight rela-
tionship between moisture content and dry matter.
7

Testing Baled Cotton
hSlide the plastic spacer over the
#
491 contact pins from
the bottom of the pins, mount the pins in the chucks and
tighten the set screws. (The
#
491 contact pins are not
inserted into the chucks for shipping purposes).
hAttach the
#
30-E/C Electrode to the connector on top of
the meter.
hSet the Scale to #1 Lint Cotton and select a set point.
hInsert the electrode pins into the bale and press the read
button
! .
hPlace the pin spacers near the tips of the pins when con-
tact is first made with the bale. This helps to keep the pins
parallel as they are forced into the bale.
The
#
491 contact pins are insulated, except for 1-3/4” at
the tip. The insulation helps to identify the area of moisture,
since the reading is obtained from the tip of the pin. Keeping
track of moisture readings as the pins are pushed into the
bale will give an idea of the uniformity of moisture distribu-
tion in the bale. Higher moisture readings near the surface
are an indication that the cotton has been exposed to higher
moisture after baling.
The C-2000 gives accurate results on normally compressed
bales. If the bale is loosely packed, the meter will read lower
than the actual moisture content. If the bale is very tightly
packed, the readings will be only slightly higher than normal,
and as a rule, no correction needs to be made.
Well-conditioned material will give uniform readings; however,
material that is baled before it is dry will show a wide range
of moisture content. Several tests should be made on each
bale, and you should note the average and the highest read-
ings of these tests.
Testing Yarn
hConnect the
#
37-E/C multi-pin electrode to the connector
on top of the meter.
hSet the scale to
#
1lint cotton and select a set point.
hInsert the electrode pins into the yarnand press the read
button
! .
8

Temperature Correction
The basic calibration assumes the cotton temperature to be
70°F. For best accuracy, apply a temperature correction if
the cotton temperature is outside the range of 60°F to 80°F.
Make a correction of approximately 1.0% for every 20° F.
The meter will read higher than the actual moisture content
as cotton temperature increases, and will read lower as cot-
ton temperature decreases.
Example:
At 70°F, a reading of 7% indicates actual %MC of 7%. At
varied temperatures, meter readings will varyas follows:
Cotton Temperature Meter Reading Actual %MC
110°F 9.0% 7%
50°F 6.0% 7%
CARE OF YOUR METER
To keep your meter in good working order:
hStore your meter in a clean, dry place. The protective
carrying case provided is an ideal storage place when
the meter is not in use.
hChange the 9-Volt battery as needed. Continued use with a
low battery may cause the meter to go out of calibration.
hClean the meter, contact pins, and probes with any
biodegradable cleaner.Use the cleaner sparingly and on
external parts only. Keep the cleaner out of the external con-
nector.DO NOT IMMERSE THE METER OR ANY ELEC-
TRODE IN WATER.
hRemove the battery if the meter will not be used for one
month or longer.
9

WARRANTY
Delmhorst Instrument Co., referred to hereafter as
Delmhorst, guarantees its C-2000 meter for one year from
date of purchase and any optional electrodes against defects
in material or workmanship for 90 days. If, within the war-
ranty period of the C-2000, you find any defect in material
or workmanship return the meter following the instructions
in the Service for Your Meter section. This limited warranty
does not cover abuse, alteration, misuse, damage during ship-
ment, improper service, unauthorized or unreasonable use of
the meter or electrodes. This warranty does not cover batter-
ies, pin assemblies, or pins. If the meter or any optional elec-
trodes have been tampered with, the warranty shall be void.
At our option we may replace or repair the meter.
Delmhorst shall not be liable for incidental or consequential
damages for the breach of any express or implied warranty
with respect to this product or its calibration. With proper
care and maintenance the meter should stay in calibration;
follow the instructions in the Care of Your Meter section.
Under no circumstances shall Delmhorst be liable for any
incidental, indirect, special, or consequential damages of any
type whatsoever, including, but not limited to, lost profits or
downtime arising out of or related in any respect to its
meters or electrodes and no other warranty,written, oral or
implied applies. Delmhorst shall in no event be liable for any
breach of warranty or defect in this product that exceeds the
amount of purchase of this product.
The express warranty set forth above constitutes the entire
warranty with respect to Delmhorst meters and electrodes
and no other warranty,written, oral, or implied applies. This
warranty is personal to the customer purchasing the product
and is not transferable.
10

WHEN ACCURACY IS THE POINT .
®
TM
For 60 years Delmhorst has been
the leading manufacturer of high
quality moisture meters and thermo-
hygrometers. Today we offer the
innovative KIL-MO-TROL
®
in-kiln
monitoring system. We also offer a
wide range of meters for a variety
of applications including wood-
working/lumber, agriculture, con-
struction, paper, restoration, IAQ
and flooring.