Delmhorst P-2000 Manuale utente

P-2000

o w n e r ’ s m a n u a l

WHEN ACCURACY IS THE POINT.

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TABLE OF CONTENTS

2 P-2000 Features

3 Key Functions

3 Check Calibration

4 To Set the Scale

4 To Change the Set-Point

5 Information About Your Readings

5 To Check the Accumulated Readings

6 To Reset the Meter

6 Applications

7 Using the 0-100 Arbitrary Scale

7 Testing Baled Scrap Paper

8 Care of Your Meter

9 Service for Your Meter

10 Warranty

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P-2000 FEATURES

hDesigned to check the moisture levels in paper products

such as cores, corrugated, kraft stock, baled scrap paper,

and other paper-based materials

hResistance technology recognized around the world as the

most accurate method for measuring moisture

hProven microcontroller circuit

hAverages up to 100 accumulated readings

h4.3%-18% moisture range on paper

h0-100 reference scale for relative moisture indications in

hygroscopic materials

h5%-40% moisture range on baled scrap paper

hIncludes (1) 9-volt battery

hIncludes sturdy carrying case

hOne year warranty

Read Key

Calibration

Check Key

Set-Point

Key

Scale

Key

DELMHORST P-2000

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KEY FUNCTIONS

!Read:

Press this key to read the %MC or relative moisture

value of the material under test.

@Check:

This key, when pressed with the Read key, checks the

meter calibration. It also displays the number of readings

in memory (up to 100), the average, and the highest

stored reading. It also clears the memory.

#Set-Point:

This key programs the set-point value. A buzzer will alert

you if the meter reads higher than the selected value. It

also acts as a scroll key, depending on the function.

$Scale:

This key sets the display scale to #1 (paper), #2 (refer-

ence), #3 (baled scrap paper).It also acts as a scroll key,

depending on the function.

CHECK CALIBRATION

Set the meter to Scale #1 (Paper). Press the calibration

check key @and the read key !simultaneously. The meter

is in calibration if it displays 11.1% +/-0.2.

When checking calibration, there is no need to disconnect the

external electrode, if attached.

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 battery and the instru-

ment still does not indicate an acceptable calibration, return

it to DELMHORST for service. See Service for Your Meter

section.

Note:

When the battery is removed and then reconnected, the meter

displays its software version for one second and then turns

itself off. After replacing the battery, you must reset the meter

as described in Resetting the Meter section.

A hard Reset is required if, after changing the battery, the dis-

play is frozen. This is sometimes caused by the interruption of

contact between the battery and battery lead wire. Resolve this

as follows: 3

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TO SET THE SCALE

Set the scale to #1 for most paper and paper products, #2 for

obtaining relative moisture indications on hygroscopic materials

for which no established calibration is available, or #3 for

baled scrap paper.

hTo change the scale, press and hold the scale key $. The

meter will display the current scale for one second then

scroll forward through the scales.

hRelease the key to stop at your 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:

Scale #1 – 7%

Scale #2–50%

Scale #3 – 19%

TO CHANGE THE SET-POINT

hTo change the set-point value press the set-point key #.

The meter will display the current set-point value for the

scale you have chosen for one second.

hTo scroll forward to a higher value for that scale hold the

set-point key #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 key#. Within one second, press and

hold the scale key $. Continue to hold the scale key $

and the set-point will decrease.

hWhen scrolling in either direction, release the key to stop

at your desired set-point.

hA buzzer sounds if the meter reads a value higher than the

set-point.

You can change the value between 5.0 and 18.0 for Scale #1,

2-99 for Scale #2, and between 6.0 and 39.0 for Scale #3.

Disconnect the battery. Press and hold the Read key for 15 sec-

onds. Release the Read key. Press and hold the Check key for 15

seconds. Release the Check key. Connect a fresh battery to the

lead wire in a single action, making sure to align the poles prop-

erly and without interrupting contact. If the display remains

frozen, repeat the procedure. If this procedure does not solve the

problem, refer to the Service for Your Meter section.

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INFORMATION ABOUT YOUR

READINGS

Readings below the nominal range of each scale will be dis-

played as a negative number. Readings above the nominal

range will be displayed with a blinking number. All under-

range and over-range readings should be disregarded. They

are not added to the accumulated readings or used in calcu-

lation of the average or highest reading.

The meter can 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 key!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.

TO CHECK THE

ACCUMULATED READINGS

This feature displays the total number of all accumulated read-

ings for the selected material, the average of those readings,

and the highest stored reading.

hTo view the readings, press and release the calibration check

key@. First the meter displays the number of accumulated

readings for one second, then the average of those readings

for two seconds. Then it displays the highest stored reading

for two seconds. The total “cycle” time is five seconds.

hTo keep the accumulated readings in memory release the cal-

ibration check key @before the total cycle time is complete.

hTo erase readings, hold the calibration check key @for

more than five seconds. All accumulated readings will be

erased and the meter will display "0".

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TO RESET METER

hPress and release the calibration check key @.

hWithin one second, press and hold the scale key $. The

meter will display a reset sequence as follows: “141”,

“7”, “2.0”, “11.1”. The last number, “11.1” is a cali-

bration check.

hResetting the meter clears the memory and restores

default settings.

APPLICATIONS

Testing Paper, Paper Cores

and Corrugated Products

hSet the meter scale for #1 paper. Check that the contact

pins are firmly hand tightened.

hPush the contact pins into the paper product to their full

penetration if possible.

hPress the read key !.The meter displays the %MC for

two seconds.

Since the readings are the result of an “average” calibra-

tion, if a high degree of accuracy is required, the meter

should be checked on the specific material and corrections

determined by the user.

Meter readings indicate moisture content at room tempera-

ture of 70º F–90ºF. Meter readings will be affected by lower

or higher temperatures. Lower temperatures cause readings

to be lower; higher temperatures cause readings to be higher

than the actual MC.

The meter tends to read the highest moisture content that is

in contact with both pins. If thick samples are not well equal-

ized, it may be necessary to make tests at different depths to

determine the degree of uniformity of moisture distribution in

the sample.

If the meter is used on stock so thin that the full length of the

pins is not entirely embedded in the thickness of the sample,

the readings tend to indicate a lower than actual MC. This

can be overcome by testing more than one sample in stacks.

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Using the 0–100 Arbitrary Scale

This scale is used to test the moisture content of hygroscopic

materials for which a calibration is not available. Depending

on the material, a special application external electrode,

instead of the integral contact pins may be required.

Increasing readings on the 0-100 reference scale indicate

higher levels of moisture content. These readings can be

translated into percent moisture content once a calibration

has been developed.

hSet the meter scale for #2. If necessary, attach an exter-

nal electrode to the meter.

hPush the contact pins into the material or apply the exter-

nal electrode.

hPress the read key !. The meter displays a relative value

for two seconds.

The readings may also be used for comparative tests, after

meter readings have been related to given conditions for the

materials involved. When the meter is used as a gauge for

comparative tests, readings should be taken on samples con-

sidered to be at “safe” levels or in satisfactory condition.

These readings are then used as the “standard” against which

subsequent readings on the same material are evaluated.

The “standard” for any given material is related to safe stor-

ability or any other property which is important for further

production processing.

Testing Baled Scrap Paper

hSet the meter scale for #3 baled scrap paper. Attach an

external electrode to the meter.

hPush the external electrode into the material being tested.

hPress the read key !. The meter displays the %MC for

two seconds.

The level of accuracy of meter readings depends on a number

of factors: similarity between the material tested and sam-

ples on which the calibration was made; moisture distribu-

tion; and chemical application or processing which may

affect the electrical properties of the paper product

The required electrode is the H-4 with a #830-series prod.

(10”or 18”). A sharp, steel rod to open the hole for the prod

may be helpful if the bale is very dense.

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A few meter readings in a limited number of specific areas of

a large mass can not be projected to indicate an average

moisture content of an entire bale.The readings can be very

helpful in providing an indication of the overall moisture con-

dition inside the bale and to detect areas of excessive mois-

ture.

Meter readings may be used as an arbitrary guideline in

determining whether or not to accept or reject the material.

Since checking the moisture condition of bales is performed

when buying and selling, the specific value of the meter read-

ings remains an element to be agreed upon between buyer

and seller. Such an agreement should consider not only a spe-

cific “range” of readings, but the number and location of

where they are taken.

The following ranges can be used as a guideline and may help

to interpret the readings:

hReadings of 5%–10%, with EMC to 60% RH are usually

considered “dry”.

hReadings from 11%–20% with EMC to 95% are usually

considered “acceptable” but should be taken with some

reservation.

hReadings of 20%-40% are considered “wet” and unac-

ceptable.

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.

hChange contact pins as needed. Keep pin retainers hand

tightened.

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.

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