Modulus COMP-U-DIFF 10-329 User manual

OPERATING MANUAL
COMP-U-DIFF
MODEL 10-329
386 Main Street Redwood City, CA 94063
Ph [phone] FAX [phone]
WWW.MODULUSDATASYSTEMS.COM

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CONTENTS
COMP-U-DIFF MODEL 10-329
General Information/features .................................................................................................... 4
Physical Layout ........................................................................................................................... 5
Function Keys ................................................................................................................ 5
Data Entry Keys ................................................................................................................ 6
‘Quick Demo’ .................................................................................................................................... 6
Operation ........................................................................................................................... 8
To apply power ............................................................................................................. 8
Enter Specimen ID, Tech ID, Date .................................................................... 8
Enter Differential Counts .................................................................... ………….. 9
Convert Counts to Percent ................................................................................... 10
Decrement Count ................................................................................................... 10
Lockout Feature .............................................................................................................. 10
Non-Total Key ................................................................................ …………..10
Enter Morphology ....................................................................................................... 11
Enter Comments .......................................................................................................... 11
Modes
Store Mode
Enter date and store .......................................................................................... 12
Send Single report directly ....................................................................... 14
Recall mode
Report search ...................................................................................................... 11
Update results ................................................................................. ………... 11
Selective Clearing ...................................................................................... 13
Selective Sending .................................................................................... 14
Batch Mode
Clear all ..................................................................................................................... 13
Sending all results ...................................................................................... 15
Hemogram Recall ................................................................................................... 16
Installation ........................................................................................................................................ 18
Helpful Hints .............................................................................................................................. 21
Exhibit 1 – Data Format ...................................................................................................... 22
Exhibit 2 – Comment Table ............................................................................................ 23
Exhibit 3 – Ticket printer comments ................................................................................. 24
Warranty/service ............................................................................................................................ 25

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GENERAL INFORMATION
COMP-U-DIFF (model 10-329) is a differential cell counter and morphology data entry
workstation that provides efficient, direct computer entry of differential counts, RBC
morphology, comment, specimen and technical identification. COMP-U-DIFF guides the
operator through the data entry procedures via a series of English-text prompts displayed
on a large bright backlit LCD. The model 10-329 outputs its information to a laboratory
computer and/or ticket printer. With it’s 127 location batch memory, COMP-U-DIFF
may be used in a stand-alone, or autonomous, operation should the Laboratory computer
be busy or inoperative.
FEATURES
LCD display All channels are displayed simultaneously with large digits on
bright backlit LCD display
Specimen Memory COMP-U-DIFF has sufficient memory to store information from
up to 127 specimens.
Search Function High speed search facilitates quick access of information
Hemogram Recall This b-directional feature enables the user to view associated
hemogram data on the COMP-U-DIFF screen. A query to the
lab computer results in data being downloaded from the
computer to the COMP-U-DIFF screen.
Comp/Printer Ports Two separate ports allow for easy interfacing to both the lab
computer and standard ticket printer.
Status Screen To view internal function settings.
Count Correction Permits the operator to decrement counts.
Non-total channels Provides for optional counting of NRBC or other abnormal cells
independent of the differential count.
Output Data Format The data format is a serial string of characters provided for easy
programming.

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PHYSICAL LAYOUT
FUNCTION KEYS
Six function keys are located directly above the keypad area as shown in the
diagram below. Three of these keys access multiple screens where each key
depression advances to the next screen.
The function keys operate in the following manner each time one is
depressed.
[MODE] STORE
à
RECALL
à
BATCH
[MORPH/COMMENT] RBC1
à
RBC2
à
RBC3
RBC4
à
CMMT.....etc.
[COUNT] COUNT
à
PERCENT COUNT ....etc.
[EXEC] In STORE Mode. Writes report to batch
memory.
In RECALL Mode. Rewrites updated report
to batch memory.
[CLEAR]. In STORE Mode. Clears local memory.
In RECALL Mode. Clears selected report
from batch memory.
In BATCH Mode. Clears ALL reports in
batch memory.
[SEND] In STORE Mode. Transmits current results
to laboratory computer.
In RECALL Mode. Sends selected results to
laboratory computer from batch memory .
In BATCH Mode. Sends ALL results stored
in batch memory to computer.
[CLEAR] + [MORPH] Status Screen (user selectable programs.)
* NOTE: [ ] DENOTES A KEY

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DATA ENTRY KEYS
The data entry keys provide two different operations.
1) The twelve keys add counts to different cell channels in COUNT
mode; or,
2) Enable the entry of specific numeric values [0-9] for identification
numbers, quantifiers, etc.
The [INC] and [DEC] keys provide two functions:
1) Screen cursor controls; or,
2) Pointer to memory locations for accessing data stored within the
batch memory.
COMP-U-DIFF QUICK DEMO
Note: This demonstration is intended as a quick introduction of the COMPUDIFF.
STEP 1. Plug the power to the wall socket. The screen default will appear as shown below. Note
that the Unit is in the STORE mode.
STEP 2. Enter Specimen ID Number (up to ten digits).
STEP 3. At this step the user could optionally press the [SEND] key transmitting the specimen
number to the Lab. Computer requesting Hemogram data to be displayed on the screen.
[see discussion on Hemogram lookup]; or,
STEP4. Press [COUNT] function key. The screen will display the twelve counting channels and
the three digit total count as shown below:
STEP 5. Depress the counting key as required. Each key depression will add a count to the
appropriate channel and add a count to the total count (except to the upper right key if it
has been designated as a non-totalizing channel for counting NRBCs).
When the user has completed counting cells, he/she may then optionally save the
specimen count results by pressing [EXEC] key, send the results to the laboratory
computer by pressing the [SEND] key; or if there is morphology or comments to be
entered proceed to the next step.
STEP 6. Press [MORPH] Key. Note that the cursor will be located on the ACANthocytes field.
Enter a quantifier (one of the lower sic keys) for the selected Morphology. To enter
additional morphologies on the same page, press the [INC] or [DEC] keys to select the
desired morphology. Note that the morphologies are presented in alphabetical order. To
select other pages depress the [MORPH] key through the four pages.

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OPERATION
TO APPLY POWER
1. Plug power adapter connector into the associated socket located on the rear panel
of the COMP-U-DIFF.
2. Insert the power adapter plug into the wall outlet.
3. The screen will display the specimen entry form.
TO ENTER SPECIMEN ID AND COLLECTION DATE
1. The screen displays the word STORE and a flashing cursor will be noted over the
first digit of the Specimen number.
2. Enter the ten (10) digit Specimen number using [0-9] keys. [Note that data entry
is right justified].
3. Use the [INC] key to move cursor to the Date field. Enter the eight digit Data
using the [0-9] keys and the ddmmyyyy format.
TO ENTER DIFFERENTIAL COUNTS
The 12-channel keyboard for entering differential counts is shown below. While the
default key assignment layout is indicated. Alternate assignments can be
programmed in the laboratory computer to accommodate key assignment matched to
the tech identification code.

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TO ENTER DIFFERENTIAL COUNTS (CONTINUED)
1. Press the [COUNT] key until the word TOTAL is displayed on the screen.
2. Enter differential counts by depressing the appropriate key for each category (i.e.
SEGS, BANDS, MONOS, etc.).
3. Each time a count is entered, both the corresponding channel count and the total
count are increased by one and, an audible click will be heard (except for non-
totalizing channel where the count is deposited only in associated channel, but
not in the total count).
ADDITIONAL CELL CATEGORIES
To expand the COMP-U-DIFF Cell counting capabilities to accommodate more then
12 categories the user may redefine channels 9 and 10. The default for these
channels is:
Channel 9 Promyelocyte
Channel 10 Immature Cells
The comment codes 801-807 are reserved for assigning cell types to channel 9 and
codes 901-907 are reserved for channel 10 (see exhibit 3). To assign cells to these
channels follow the steps described below (see comment entry).
1. Press [MORPH] key repeatedly until the comment screen is reached.
2. Press [INC] and [DEC] keys to access the required comment field.
3. Enter a valid cell category change comment.
4. Press [EXEC] key to save the comment.
5. The selected cell category is automatically inserted at the correct print location
on the ticket.

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TO CONVERT COUNTS TO PERCENTAGE OF TOTAL
1. Press the [COUNT] key until the -%- is displayed.
2. Each channel is now calculated and displayed as percent of total; i.e., a two digit
number.
3. If the NRBC is designated for the non-total channel, the non-totalized value will
be normalized to the number of NRBCs per 100 WBCs.
TO SUBTRACT COUNTS (DECREMENT)
1. Press the [COUNT] key twice and hold down on the second press.
2. Press the cell category keys that you desire to subtract while holding down the
[COUNT] key. The screen will display –[DECR]- while in this mode.
3. Release the [COUNT] key to continue counting.
LOCKOUT FEATURE
1. At 100, 200, 300, etc. total cells counted. The keypad locks out any additional
entries.
2. To resume counting press the [COUNT] key and continue data entry.
NON-TOTAL KEY (OPTIONAL FEATURE)
1. Press the upper right hand counting key. The channel count increases by one but
the TOTAL does not. The NRBCs per 100 white cells displayed on the -%-
screen.
Note: This capability is factory preset. But maybe disabled by setting the appropriate
jumper plug.
CELL CATEGORY COUNTS EXCEEDING 99
A count exceeding 99 on any cell category will be indicated by an arrow to the left of the
pointing at the channel, which has overflowed. Each channel can tally up to 999 counts
in memory. However, only the two least significant digits are displayed due to
restrictions on screen spaces.

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ENTRY OF MORPHOLOGY SELECTIONS
COMP-U-DIFF allows for the entry of 24 morphology selections arranged in
alphabetical order on four screens of six selections each.
1. Press the MORPH key the required number of times to select any one of
the four morphology screens.
2. A blinking cursor is positioned over the first morphology entry of the
screen.
3. Use the INC and DEC keys to select other morphologies on the screen.
4. To enter a morphology quantifier press one of the numeric keys within
the range of 1-5. To erase a quantifier press key 0.
5. The selected quantifier will be displayed at the cursor position.
RBC Quantifiers
Key 0 = No Result
Key 1 = 1+
Key 2 = 2+, etc.
6. The platelet selection has special quantifier meaning for keys 0-2 only.
Platelet Quantifiers
Key 0 = Adequate
Key 1= Decrease
Key 2 = Increase
Note: The ticket printer output format contains the full names of the selected morphologies.
ENTRY OF GENERAL COMMENTS
Up to four general comments may be entered for each specimen. Maintain a comment
dictionary for reference by your microscope. The specific numbers can then access a comment
dictionary which is stored in the user LIS.
1. Press MORPH key until the COMMENT screen is reached.
2. A blinking cursor is positioned over the entry for COMMT1.
3. The INC and DEC keys may be used to access the required comment
field.
4. Look up the desired comment from your dictionary and enter the three-
digit number at the cursor position.
5. The COMP-U-DIFF counter has a preprogrammed set of comment
expansion codes for use with the ticket printer output. These are shown
in greater detail in Exhibit 3.

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OPERATING MODES
STORE MODE
The STORE mode primarily allows the user to gather results (i.e., enter Specimen identification,
diff counts, morphology and comment data) and store these in the batch memory.
1. After entering results, press the [EXEC] key to store these in the next available location
of the batch memory.
2. A message will be displayed momentarily giving the batch memory storage location
followed by a return to the Specimen entry screen.
3. The process may now be repeated for the next specimen; or, alternatively,
4. After entering results, press the [SEND] key to transmit the patient results directly to the
host computer.
The batch memory can hold data of up to 127 specimens. If an attempt is made to enter more
than this number in STORE mode, COMP-U-DIFF will display a message to indicate that
memory is full. At this point no more specimens can be entered and the stored results should be
transmitted or cleared.
RECALL MODE
1. Press the [MODE] key to access the RECALL screen. The first specimen number in
memory will be displayed.
2. Press the [INC] key to step up through the stored data. When reaching the end memory
location, the unit will produce a beep.
3. Conversely, the [DEC] key allows the operator to step back down through the memory
locations to the beginning location.
4. Once results are retrieved, they can then be transmitted to the computer by pressing the
[SEND] key, or updated and restored by pressing the [EXEC] key.
Data Search
This capability provides for quick access to specific results instead of sequentially searching
through the batch memory. To execute a quick find:
1. Press the [MODE] key to the RECALL mode.
2. Enter the Specimen number for the desired report then press [INC] key.
3. The COMP-U-DIFF will scan each memory location searching for a match of Specimen
Identification. If a match is found the search will terminate at the desired specimen
location. If a match is not found, the unit will beep and display LAST record.
Data Update
1. Press the [MODE] key to access the RECALL mode and select the desired Specimen
number.
2. Over write the desired count, MORPH or comment values. Note: DATE and TECH#
cannot be updated in the RECALL mode.
3. Press the [EXEC] key to store all data changes for the selected specimen.
BATCH MODE See SEND and CLEAR operations

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CLEAR OPERATIONS
CLEARING SELECTIVE DATA FROM MEMORY
1. Press the [MODE] key to access the RECALL mode.
2. Select the desired record to be erased.
3. Press the [CLEAR] key.
All data associated with the specimen will be set to zero and
the COMP-U-DIFF will advance and display the next specimen record.
Note that a cleared memory location will be automatically reused during the next specimen
STORE operation.
CLEARING ALL RECORD FROM MEMORY
1. Press the [MODE] key to access the BATCH mode.
2. Press the [CLEAR] key.
Preparatory to clearing memory, the unit will display the following message:
Press [CLEAR] to erase
Press [MODE] to EXIT
3. Press the [CLEAR] key a second time (a fail-safe procedure to avoid erroneous
purging of the memory.) The memory will clear and the unit will return to the Specimen
entry form in the STORE mode.

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TO SEND DATA
SENDING A SINGLE REPORT DIRECTLY ON-LINE
While in the STORE mode you may enter your differential and morphology data
as previously described. Once entered you may then send the report directly to
the host computer without storing the report by simply pressing the [SEND] key;
i.e., instead of the [EXEC] key which commits the data to the memory.
SENDING A SINGLE REPORT FROM MEMORY
a). Results transmission – operating with bi-directional Mode off.
1. Set MODE to RECALL
2. Press [INC] and [DEC] keys or go to FIND mode to select the desired specimen.
3. Press [SEND] key to initiate transmission.
4. The formatted data will be sent to the Laboratory computer and the screen will return to
the next specimen report. The data is also formatted (vertically) and sent to the printer port
(see ticket printer format for more details.)
b). Results transmission – operating with bi-directional Mode on.
1. Set MODE to RECALL
2. Press [INC] and [DEC] keys or go to FIND mode to select the desired specimen.
3. Press [SEND] key to initiate transmission.
The laboratory computer will return either:
<ctrl> U Signals a NOT ACKNOWLDGE TO the COMP-U-DIFF where it then
resends the previous report, or
<ctrl> F Will indicate COMPUTER ACKNOWLEDGE on the screen. The
screen will indicate the next specimen to be processed. This will also cause an
output of results to the printer port where the data will be vertically formatted for
ticket printout.

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SENDING ALL STORED REPORTS
a). Results transmission – operating with bi-directional mode off.
1. Set MODE to BATCH
2. Press the [SEND] key
The specimen number for each report will be displayed as each report is transmitted to the host
computer. After transmission is completed, the screen will return to the Specimen screen in STORE
mode.
Note: the operator may desire to clear the Batch memory before continuing with a new batch –
see Batch Clear operation.
b). Results transmission – operating with bi-directional mode on.
1. Set MODE to BATCH
2. Press the [SEND] key
The specimen number for each report will be displayed as each report is transmitted to the host
computer. The host computer will return either:
<ctrl U> Not Acknowledge. This causes the unit to retransmit the report.
<ctrl F> Acknowledge. This causes the unit to transmit the next report
stored in the batch memory.
After all report transmissions are completed, the screen will return to the Specimen screen in
STORE mode. (Notes: 1). The unit will not send data out the printer port in this mode; 2). The
operator may desire to clear the Batch memory before entering a new batch of results – see batch
Clear operation).
BI-DIRECTIONAL OPERATION – TIME-OUT
When operating in the bi-directional mode, the COMP-U-DIFF has a built in time-out capability to
avert the possibility of a lockup. After the unit transmits to the host computer is awaits an
acknowledgement reply. If this should not take place because of a computer outage, or other problem,
the COMP-U-DIFF will wait for 5 seconds, whereupon it will actuate an alert and issue a warning on
the screen:
No Computer Response Press any COUNT key
After pressing any of the COUNT keys the screen will then prompt the user to press the [EXEC]
key to re-initialize operation.

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HEMOGRAM RECALL
The COMP-U-DIFF has the capability to query the host computer for a patients Hemogram data.
The dialog to recall hemogram data requires that the operator send only the requested specimen
number with no cell counts. The host computer will then recognize this unique data format as a
request for information whereupon it sends the Hemogram data to the COMP-U-DIFF to be
displayed as one or more pages (screens). The required setup for querying the Hemogram data
includes:
1. Set the COMP-U-DIFF to the STORE mode.
2. Set all counts to zero by pressing the [CLEAR] key.
3. Enter Specimen number for desired Hemogram query.
4. Press [SEND] key.
Note: The recall capability requires that operation be in the Bi-directional mode. To
enable bi-directional operation set, <PJ1>location #3 = Jumper ON.
The COMP-U-DIFF is capable of receiving and displaying four lines data. Since each line can
accommodate up to 22 characters, the unit can display up to two screens. While the host
computer can be programmed to present any format constrained to 88 characters, the following
screen layout is shown as one possible example.
While only one of the pages will be shown on the screen at any time, the user may scroll up or
down between pages by pressing the [INC] or [DEC] key. Note: It may be more desirous for the
system to display a 3 or 5 part diff, Unclassified Cells, etc.
To resume with preparation of the data for the selected patient, Press any of the counting keys to
erase the Hemogram data and initialize for the counting operations. Note that the Specimen
Identification number entered during the query will be maintained and therefore does not have to
be re-entered.

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Programming Considerations
For the query example described above, the host LIS computer interface should create the
following data format:
Upon receipt of the query data, the COMP-U-DIFF will then return an Acknowledge control
character <CTRL F> to the host computer. It should be noted that the COMP-U-DIFF ignores
the CR and LF characters if sent along with the above data strings.
The computer dialog utilizes the following ASCII characters:
<STX> = Ctrl B
<ETB> = Ctrl W
<ETX> = Ctrl C
<ACK> = Ctrl F
<NACK> = Ctrl U

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INSTALLATION
A number of options are provided as user selectable Jumper plug settings. These options include:
Communications
Baud rate
Parity
Word length
Bi-directional protocol
Computer/Printer selection
Non-total key
The socket strip where the selections are made is located on the main logic board adjacent to the
contrast control. To access the jumper strip <PJ1>, remove power to the unit and turn it over.
Remove the four retaining screws and carefully lift the case top. It will be observed that there is a
ribbon cable running between the display and main logic board. The user may wish to disconnect
this cable, which is easily removed from its socket. Remember to replace this connector after you
have completed your changes.
FACTORY SETTINGS
The internal settings can be displayed on the screen. To assess the status of settings:
1). Set the unit to the STORE mode
2). Pressing the [CLEAR] and [MORPH] keys simultaneously.
The screen will display the factory settings as shown below:
BAUD 9600 BITS 7 COMP
PARITY off BDR off NT1
3). Press the [CLEAR] key to exit the status screen.
The user will also observe that jumper strip PJ1 is set-up as follows:
JUMPERS COVER PINS 1, 4, 7, 8
JUMPERS OFFSET PINS 2, 3, 5, 6
NT1 COMP BID BITS PARITY BAUD RATE
(on) (only) (off) (7) (off) (9600)
0)

USER CHANGEABLE SETTINGS
<PJ1> LOCATION #1 - - NON-TOTAL KEY (NT1)
Jumper on = Upper right key <non-total>
Jumper off = All count keys add into grand total
<PJ1> LOCATION #2 - - COMPUTER OR PRINTER OUTPUT SELECTION
Jumper on = Data output to both Printer and Computer ports.
Jumper off = Data output to Computer port only.
<PJ1> LOCATION #3 - - COMPUTER PORT PROTOCOL TYPE (BID)
Jumper On = Bi-directional data control utilizing ACK/NACK protocol.
Jumper Off = Unidirectional data flow to computer.
<PJ1> LOCATION #4 - - ASCII DATA WORD LENGTH
Jumper On = Word length set to 7 bits.
Jumper Off = Word length set to 8 bits.
<PJ1> LOCATION #5 - - PARITY STATUS
Jumper On = Parity Enabled.
Jumper Off = Parity Disabled.
<PJ1> LOCATION #6 - - PARITY TYPE (provided Parity has been enabled)
Jumper On = Even Parity.
Jumper Off = Odd Parity.
<PJ1> LOCATION #7/8 - - BAUD RATE SELECTION (Computer Port)
BAUD RATE LOCATION #7 LOCATION #8
1200 Jumper Off Jumper Off
2400 Jumper Off Jumper On
4800 Jumper On Jumper Off
9600 Jumper On Jumper On
Note: Printer Port set in software to 1200 band – 8 data bits – No Parity.
COMPUTER INTERFACE
The COMP-U-DIFF workstation may be connected directly to a lab computer system by means
of the supplied communications interface cable. The port is EIA and RS-232 compatible with
pins configured as shown below:
PIN # SIGNAL NAME
2 RECEIVE (used in bi-directional mode only)
3 TRASMIT
4 REQUEST TO SEND (RTS)
5 CLEAR TO SEND (CTS)
7 SIGNAL GROUND
20 DATA TERMINAL READY (factory set option)
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RTS/CTS jumper <JMP3>
This jumper is located immediately behind the three-port interface jack J2 and between
components U3 and U4.
Jumper On = Stand-alone operation.
Jumper Off = Allows flow control when used with MDS Multiplexer type MD 204.
PRINTER PORT
This RS232 compatible port is specifically formatted to allow the direct connection of a Ticket
Printer to the COMP-U-DIFF.
PIN# SIGNAL NAME
2 RECEIVE
3 TRANSMIT
7 SIGNAL GROUND
Note: RTS/CTS and DTR protocol are not supported on this port!
PHYSICAL LAYOUT OF WORKSTATION SERIAL PORTS
THE WORKSTATION HAS TWO [2] RS232 SERIAL PORTS, WHICH ARE PHYSICALLY
LOCATED AT THE REAR OF THE INSTRUMENT ADJACENT TO THE POWER
ADAPTER REVEPTACLE.
THE DIAGRAM SHOWS THE PORT LAYOUT DETAIL (SEEN FROM REAR APRON)
PRINTER PORT
DATA OUTPUT IN ENGLISH TEXT FORMATTED (VERTICALLY) FOR USE WITH A
TICKET PRINTER.
COMPUTER PORT
DATA IS OUTPUT IN AN [ASCII] STRING FORMAT; i.e., HORIZONTAL FORMAT. Refer
to exhibit 1 for specific details.