Schaller Humimeter BMA User manual

User manual

Moisture meter for determining

water content of biomass

humimeter BMA

version 1.8

2014

page 2 version 1.8

Design of the device

display

start push

button

ON/OFF

button

LED (status)

power supply

interface

measuring

box

drawer

temperaturebulk density (option)

water contentatro weight/m³ (option)

material

version 1.8 page 3

Operation

1. Put the empty measuring box into the

humimeter BMA correctly. Make sure to

hook in the aluminium part of the

measuring box centrically into the

plastic brackets of the drawer.

Close the drawer and push it down

(normally this is effected automatically).

Plug in the round plug of the delivered

power supply unit at the humimeter BMA

and tighten it.

4. Plug in the power supply unit into a

Schuko socket (230VAC).

After plugging in, the

humimeter BMA

switches on automatically. If not, switch

on the instrument by pressing the

button for 3 seconds.

The

query for a self calibration

„Reinitialize?” shows up on your display.

Accept by pressing the button.

7. The self calibration has finished when

the display shows the measuring

window.

8. If the self calibration cannot be

completed successfully, please read

through page 12, header fault

correction.

page 4 version 1.8

Measuring procedure

1. Open the drawer of the humimeter BMA

and take out the measuring box. For

that, lift the box and then pull it out.

Completely fill up the measuring box with

the material to measure

. For that you

must use the delivered bucket.

3. Wipe off the material at the upper edge

of the box evenly.

4. Put the filled measuring box into the

drawer correctly and close it.

5. Select the right product (calibration

curve) using the arrow keys.

Press the Start push button. The

measurement will start automatically.

During the measurement, the LED is

blinking in blue and the display shows the

symbols for an ongoing measurement (see

picture)

After the measuring procedure is

completed, the

LED is shining in blue

constantly and the measuring values are

shown on the display.

If desired the measuring values can be

saved now. For that, please follow the

instructions on the next page

9. Open the drawer and carefully remove

the measuring box.

10. Empty the measuring box completely.

version 1.8 page 5

Saving of measuring values

If desired the measuring values can be

saved in the store menu by pressing the

button ( button). The storage was

successful when the number in front of

the symbol increases.

To reach the store menu please press

the left button ( ) as long as the symbol

appears.

2. To name the saved results press the

button.

3. Here you can name the measuring

series using numbers and letters. For

numbers press (0..9) and for letters

(A..Z).

4. After entering the name, confirm by

pressing (Enter). Now the saving is

completed.

Note: The accuracy of a measurement can be improved by

performing several measurements (3) with the same sample and

calculating the average of them. If the individual measuring values

are stored on the BMA, the device calculates the average

automatically.

Printing hot key

(only with optional integrated printer)

Pressing the second button from left ( ) the last saved measuring

series is printed.

Note: This means that the last saved value is printed, and not the

last measured value.

List of calibration curves

Pressing one of the arrow keys in the

measuring window for at least 3 seconds, a

list of all available calibration curves will

appear. Select your desired product using

the arrow keys and confirm by pressing

ame of

series

water content (average)

temperature (average)

atro weight / m³ [kg/m³]

(average) optionally

bulk density [kg/m³]

(average)

option

ally

page 6 version 1.8

100% ×

−

MtMn

Calibration curves

name (material) description dimensions

measuring range

Woodchips

forest wood chips (or similar)

P16 - P45 5 - 70 %

Coarse ch.

wood chips with less fines P45 5 - 70 %

Industr. WC

wood chips without fines P45 - P63 5 - 70 %

Barks

barks P31,5 - P45 5 - 70 %

Pellets

wooden pellets Ø 6 mm 5 - 14 %

Miscanthus

chopped miscanthus similar P16 5 - 35 %

Shavings

shavings 5 - 45 %

Sawdust

sawdust 5 - 70 %

Corn cob

corn cobs (chopped or total) 5 - 40 %

Empty 1

for special sorts (calibration by Schaller GmbH)

Reference

for testing humimeter BMA. Not suited for measuring!

Selection of the right calibration curve:

These are advices for selecting the right calibration curve. If you

are not sure about the right calibration curve, we recommend

carrying out a comparison measurement by kiln drying (EN 14774).

At page 12 and 13 you find pictures of different sorts of wood chips.

Determination of the material reference moisture

The humimeter BMA determines the water content, this is the

moisture related to the total mass (wet base):

: Mass with average moisture content

: Mass of the dried sample

%WG: water content (according to norm EN 14774)

Definition of wood chips classes (EN 14961)

The stated numbers refer to the particle size that goes through

round gaps of the corresponding diameters (e.g. P16: 16 mm).

o P16 minimum 75% of mass is between 3.15 and 16 mm

oP31,5 minimum 75% of mass is between 8 and 31,5 mm

o P45 minimum 75% of mass is between 8 and 45 mm

o P63 minimum 75% of mass is between 8 and 63 mm

version 1.8 page 7

Next calibration curve

Last calibration curve

Power off (3 sec.)

Watch last saved

data

Save new value

Printing hot key

Switch lower

Switch upper

Open the enu / Enter

Typ

selection enu

Store enu

Main enu

Edit logs

Manual logs

Clear logs

Print logs

Last log

All logs

Clear logs

Send logs

Manual logs

Clear logs

Options

Status

Options

Date / Time

Datalog Time

Language

Unlock

°C / °F

o Userlevel

BL On time

Auto Off Time

Calibrate

Materialcalib.

Adjust

Password

Reset

SN.

Logo

Admin

Keypad symbols

Measuring window:

Rolling menu

On/Off

Switch upper

Switch lower

Save

Watch saved data

Add suppliers data

Menu:

Enter

Switch upper

Switch lower

Back

Enter numbers

Enter letters

Next or right

Left

Yes

Shift

Menu level

overview

Overview main menu

page 8 version 1.8

Transfer saved data to the PC

(only possible with USB data interface module)

To send your saved logs to the PC, connect

the humimeter device to your PC using the

USB cable that was delivered with your

device. Carefully loosen the protection cap

on your humimeter and plug in the USB

miniB connector. The bigger connector has

to be connected to a USB slot on your PC.

Start the LogMemorizer software on your

PC and switch on your humimeter BMA.

The data transfer can be started on your

humimeter or on the software:

Starting the data transfer on the humimeter:

Press the key until you reach the menu

(see image on the right). Then choose

„Send Logs“ and confirm by pressing the

key. Now choose „Manual Logs“ and

confirm with again. All saved logs will be

sent to your PC now.

Starting the data transfer on your PC:

Press the button „remote control“ in the

LogMemorizer software. A drop-down menu

with several options opens (see image

below).

For transferring the data you can select

„Import last manual log“ (the last saved

measuring series is transferred) or „Import

all manual logs“ (all saved logs are

transferred).

If you click on one of these menu items, the

transfer starts immediately.

For the basic adjustments of the software

please look through the instructions on the

LogMemorizer USB flash drive.

version 1.8 page 9

Print saved data

(only possible with optional integrated printer)

To print out your saved data, send a print

job at your humimeter device.

For that press the

button until you reach

the menu (see image on the right). Select

the menu item „Print logs“ and confirm by

pressing .

Now you can select if you want to print the

last saved measuring series or all saved

measuring series (logs).

Confirm by pressing again. The selected

logs are printed out now.

To save paper, please think of clearing the data

storage regularly.

If the printing has been started successfully,

the printer begins to print out the logs

immediately. The green LED shows the

correct operation.

Changing the paper roll

For exchanging a blank thermo paper roll, lift

up the clip until the cover opens (see

picture).

Remove the blank roll.

Put a new opened roll into the printer,

ensuring that the paper comes out to the

fore (see picture).

While closing the cover, hold the beginning

of the paper tightly to prevent the paper from

wrinkling.

Now the printer is ready for use again.

page 10 version 1.8

Several functions

Setting the clock

2 times -> Options -> Date / Time

Enter date and time using the button. Pressing the button the

cursor shifts to the next place. Pressing the button (OK) your

entry will be saved.

Info: If the power supply unit is unplugged the clock stands still!

Unlocking the instrument (Super User)

2 times - Options – Unlock

Enter the 4-digit password using the button (standard is the

4-digit serial number) and confirm by pressing .

Online print

2 times -> Options -> o Online Print

For choosing that menu item you have to unlock your BMA first!

If you have activated that function, your BMA will print the current

measuring value after pressing save button immideatley.

LED signals

Shining in blue device is ready for operation

Blinking in blue ongoing measurement

Blinking in red failure

Possible reasons for failure (red blinking LED):

•Drawer has not been closed correctly

•Measuring box is missing resp. empty

•Wrong positioning of measuring box

•Overloaded motor for compression



The failure can be confirmed by pressing the START push

button!

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