MONARCH INSTRUMENT Data Chart 1250 User manual

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TABLE OF CONTENTS
1.0 INTRODUCTION
1.1 CHART SPEED TO SAMPLE SPEED
1.2 REVIEWING DATA
1.3 ZOOMING AND CONDITIONING DATA
1.4 CUSTOMIZING
1.5 TRIGGERING
1.6 THE GRAPHICS LCD DISPLAY
1.7 OTHER GRAPHIC MODES
2.0 INSTALLATION AND SETUP
2.1 UNPACKING
2.1.1 Initial Inspection
2.1.2 Unpacking Procedure
2.1.3 Detected Damage
2.1.4 Equipment Return
2.1.5 Storage
2.2 INSTALLATION
2.2.1 Panel Mounting
2.3 CONNECTION
2.3.1 Power Connections
2.3.2 Input Signal Connections
2.3.3 Relay Output Connections
2.3.4 Digital Input
2.3.5 Ethernet Connection (Option)
2.3.6 USB Port (Option)
2.3.7 Cleaning
2.4 INPUT SCALING
2.5 ALARMS
2.5.1 Alarm Types
2.5.2 Setting Alarms
2.5.3 Alarm Indication
2.6 MEMORY CARDS
2.6.1 Care of the Data Cards
2.6.2 Card Storage Capacity and Data Type
3.0 BASIC OPERATING INSTRUCTIONS
3.1 BASIC MODE OF OPERATION
3.2 VIEWING HISTORIC DATA
3.3 COMPRESSING AND EXPANDING DATA (TREND VIEWING)
3.4 ZOOMING DATA (AMPLIFICATION)
3.5 MENU MODE
3.5.1 EXIT!
3.5.2 ALARM RESET!
3.5.3 RECORD MODE
3.5.2 CURSOR ID!
3.5.3 VIEW FILE
3.5.4 CARD STATUS!
3.5.5 SAMPLE RATE
3.5.6 PASSWORD (PROTECTION)
3.5.7 ADV. SETUP (ADVANCED SETUP - See Section 4)
3.5.8 DISPLAY ADJ (ADJUST)
3.14 EVENT TRIGGERING
3.15 STATUS LINE INDICATORS

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4.0 ADVANCED SETUP
4.1 CHANNEL SETUP
4.2 ALARMS
4.3 RELAYS
4.4 DISPLAY
4.5 DATA CARD
4.6 CLOCK
4.7 BEEPER
4.8 SAMPLE TRIGGER
4.9 RECORD TRIGGER
4.10 EXTERNAL INPUT
5.0 MISCELLANEOUS
5.1 CALIBRATION
5.2 SPECIFICATIONS
APPENDICES
APPENDIX A UNITS LABEL CHARACTERS
APPENDIX B ERROR AND INFORMATION MESSAGES
APPENDIX C MASTER RESET
APPENDIX D RE-PROGRAMMING FIRMWARE
SAFEGUARDS AND PRECAUTIONS
Read and follow all instructions in this manual carefully, and retain this manual for future
reference.
Do not use this instrument in any manner inconsistent with these operating instructions
or under any conditions that exceed the environmental specifications stated.
This instrument is not user serviceable. For technical assistance, contact the sales
organization from which you purchased the product.
Monarch Instrument’s Limited Warranty applies. Warranty Conditions, Registration and
Extended Warranty coverage available online at www.monarchinstrument.com.

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WEEE NOTICE
In order to comply with EU Directive 2002/96/EC on Waste
Electrical and Electronic Equipment (WEEE):
This product may contain material which could be hazardous to human
health and the environment. DO NOT DISPOSE of this product as unsorted
municipal waste. This product needs to be RECYCLED in accordance with
local regulations, contact your local authorities for more information. This
product may be returnable to your distributor for recycling - contact the
distributor for details.
Para obedecer con EU Directiva 2002/96/EC en el Desecho el Equipo Eléctrico
y Electrónico :
Este producto puede contener la materia que podría ser la salud humana perjudicial para y el
ambiente. NO se DESHAGA de este producto el desecho municipal como no clasificado.
Estas necesidades del producto para SER RECICLADAS de acuerdo con las regulaciones
locales, contactan su administración local para más información. Este producto puede ser
retornable a su distribuidor para reciclar - contacta el distribuidor para detalles.
Afin de respecter la directive européenne 2002/96/EC sur l’Equipement
Electronique et les Déchets Electriques :
Ce produit pourrait contenir des matières qui peuvent être dangereuses pour la santé de
l’homme et de l’environnement. Ne pas jetter ce produit dans un container municipal
inapproprié. Ce produit doit être recyclé en accord avec les arrêtés locaux; contacter les
autorités locales pour plus de renseignements. Ce produit peut être renvoyé au distributeur
pour recyclage - Contacter votre distributeur pour plus de details.
Um den Vorschriften der EU-Direktive 2002/96/EC bezueglich elektrischer
und elektronischer Abfallstoffe nachzukommen:
Dieses Produkt kann Materialien enthalten, welche gesundheitsgefaehrdend und
umweltschädlich sind. Dieses Produkt DARF NICHT wie unsortierter Hausmuell entsorgt
werden. Dieses Produkt muss gemaess den oertlichen Bestimmungen recycled werden,
bitte kontaktieren Sie die lokalen Behoerden fuer weitere Informationen. Sie koennen dieses
Produkt zum Recycling an Ihren Haendler zurueckgeben, bitte kontaktieren Sie den Haendler
fuer weitere Details.
AJW112/09/05 REV03
MLK 12/15/05 REV04

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1.0 INTRODUCTION
The DC1250 is the next generation Solid State Data Recorder / Panel Indicator. This
instrument has all the capability of a traditional paper recorder - variable chart speeds, the
ability to review historic data, see trends and more, with a number of specific exceptions - NO
PAPER to jam, no ink to smudge and no pens to clog or break. The data is stored in a
Compact Flash memory card, which can be easily transported.
Of course it does all the regular functions a lot better, and the data can be transferred directly
into reports, spreadsheets or analysis programs. Data can be examined and archived on any
Windows XPTM compatible machine and can be printed out in various formats as required.
This instrument has two universal inputs so it can measure voltage, current, thermocouples
and RTDs by simply selecting them from the menu. It also has two potential free alarm output
contacts and an isolated digital input. The display can be user configured to graphics, digital
or a combination. Maximum data storage is 2 Gigabytes. Communication options include
USB and Ethernet ports.
Things are done a little differently in a paperless recorder and there are a few new concepts
that you may need to become familiar with. There are more features and functions in this unit
than you will probably use. It is recommended that you read this manual in its entirety before
attempting to use the instrument.
The balance of this introduction will attempt to introduce some of the more unique features of
this paperless recorder.
1.1 CHART SPEED TO SAMPLE SPEED
A major difference between paper and paperless is SAMPLE SPEED, which is analogous to
CHART SPEED in the paper recorder. There is an apparent chart speed, the rate at which
the samples appear to move across the Graphics Display, but unlike paper recorders the
display is made up of discrete data points, each of which is a distinct sample of the data
being measured. The rate of movement across the screen is thus a direct function of the
sample rate. The major factor in deciding what sample rate to select is knowing how much
data is enough. In a paper recorder a chart speed of 1 inch per hour is fine for a process that
does not vary very quickly but would result in a thick blur if trying to record a 1Hz sine wave.
Unlike a paper recorder, every point recorded by the paperless recorder is uniquely
identifiable, no matter how dense it appears on the screen. It is always better to have too
much data than to have too little. The only consideration is the amount of space used in the
memory card.
To relate chart speed to sample rate we need to consider how we plan to reproduce the data.
The graphic LCD display has a density of 70 pixels (data points) per inch; a typical dot matrix
printer has 180 pixels per inch and a laser printer 300 pixels per inch. Thus to fill one inch of
the display in one hour we need to sample at a rate of 70 samples per hour, a little over once
per minute, however if this is now printed on a laser printer it will fill less than 1/3 of an inch. It
is the amount and quality of the data that counts. Another advantage of the paperless
recorder is that it can sample internally at 100 samples per second (one every 0.01 seconds).
These samples can be averaged or peaks or valleys can be detected and then this data can
be stored at the chosen sample rate.
Trial and experience will yield the best sample speeds for the application. Start with a faster
sampling rate than you think you will need; you can always slow it down in the future. As a
rule of thumb, one sample every 10 seconds should give the equivalent information that 1
inch per hour of chart paper would.

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1.2 REVIEWING DATA
One of the biggest features of this recorder is its ability to show historic data and trends. The
data on the graphics screen can be rewound like a tape recorder, scrolling back in time,
displaying past data on the screen while still recording data in real time.
The data can also be compressed on screen, showing a whole day or week's worth of
recording on one screen, enabling trends or irregularities to be spotted easily. A data cursor
can be moved around the screen to uniquely identify samples in both time and amplitude.
Refer to the section 3 for the specifics on reviewing data.
1.3 ZOOMING AND CONDITIONING DATA
The recorder acquires data with greater resolution than can be displayed on the screen. The
user has the ability to ZOOM in to amplify the data either 2 or 4 times, equivalent to using a
magnifying glass on the display. These ZOOM windows can be scrolled up or down to cover
the entire data spectrum. The vertical scale automatically adjusts to the zoom level and
position to enable resolution of minor changes in input signal.
The recorder also acquires data at a rate faster than what may be displayed on the screen.
The user can set the sampling rate from 100 samples per second down to 1 sample every 10
minutes. When sampling slower than 100 samples per second, the recorder can be
programmed to record the average, maximum or minimum values. Thus if a sample rate of 1
sample per minute is chosen, the recorder will still sample internally at 100 samples per
second while computing the average or detect and store either the maximum (peak) value or
minimum (valley) value, depending on the mode programmed. It will then store this value
when the minute is up. Unless required otherwise, it is recommended that the average value
be used for recording since this will tend to filter or smooth the data.
1.4 CUSTOMIZING
There are many operating features and parameters that the user can program. All settings
are stored in nonvolatile memory and are recalled each time the unit is powered on. The
display can be scaled to read in engineering units, and the trace can be labeled accordingly
with up to three alphanumeric characters. Four alarms are fully user programmable and can
be associated with either channel or the external input. The Alarm levels can be set in the
engineering units of the display, the sense of the alarm, the type and the deadband or
hysteresis can be individually set for each alarm. Optional relay outputs can be assigned
independently to each alarm. A reset delay feature is also available.
There are other features which may be programmed by the user including the time stamping
mode, either real time or elapsed time, clock update rates, file names, beeper operation etc.
(Refer to Section 4 – Advanced Setup)
1.5 TRIGGERING
The recorder has the ability to change sampling speeds and stop or start recording as a
result of a triggered event. This event may be tied to any of the four internal alarms or
optionally to an external signal. This enables the unit to monitor a process without recording
or to record at a slow speed to conserve card space. When an external event or internal
alarm condition occurs, the unit will begin recording or change to a higher sample rate for the
data of interest.

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1.6 THE GRAPHICS LCD DISPLAY
DC1250 Front View showing TREND Display
The above diagram is a representation of the recorder in the TREND mode. The alpha
characters around the border point to various features of the unit and are described below.
Not shown are the MENUS which pop up over the display. The menus are in the form of
those shown in Sections 4 and 5. The numbers in brackets below refer to the section that
covers the topic in detail.
A CompactFlash™ card slot – manually insert a card into the unit to store data and
configuration information. Can also be used as a means of updating the firmware in the
unit. Cards up to 2 Gigabytes in size can be used.
B Busy LED (Red) – on when the unit is recording and blinks whenever the unit is
accessing the CompactFlash™ card. Do not attempt to remove the card when this
light is on.
C Power LED (Green) – on during normal operation. If the optional internal battery pack is
present, this LED will blink during power failure to indicate the unit is running off internal
batteries.
D Optional USB interface – enables connection to a Windows XP compatible PC.
E Navigation buttons – used to set up and navigate around the display. The buttons are all
dual function; the second function is initiated by holding down the MENU button while
C
B
A
E
G
F
D
J
H
L
M
N
P
K

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pressing one of the other buttons. The second function is printed on each button.
F Date and Time – shows the actual time of day (real time). The time is displayed user
selectable in 12 or 24 hour format. The user can also select European or American
formats and auto daylight savings adjustment.
G Right hand edge of the graphics area in which the traces are displayed. This is the
vertical scale area designated by the scale values at the top, center and bottom of the
scale. The most recent data that is displayed in digital form at the top of the display (J) is
against the right edge of this scale and moves left with time - the most recent data is to
the right and the oldest data is to the extreme left. New data appears against this margin
and the oldest data disappears off the screen at the extreme left. The graphic cursor (K)
will start against this right edge.
H Vertical Scale Identifier – the scale alternates between Channel A and Channel B. This
displays the Channel Tag and the Engineering units. The values against the scale
change in sympathy with the channel display.
J Digital Window – shows the values for each Channel including the Channel identifier or
tag, the actual value and the engineering units. Channel A is displayed on the left and
Channel B on the right. This window displays the absolute digital value of the
instantaneous (last) reading for the channel, and is the sample against the vertical scale
of the graphics display (G), unless the cursor is active, in which case it shows the value
at the point the cursor intersects the trend line.
K Cursor – displayed when activated in the cursor ID mode. This cursor can be moved
using the left ◄and right ►arrow buttons. The values in the digital window (J) are the
values at the point the cursor intersects the trend line.
L Date/Time Axis Delimiter – dashed vertical lines placed at equal increments along the
Horizontal axes (Time). The Date/Time stamp beside the line indicates the exact
position of the line. Both date and time may be shut off or relocated vertically. These
lines move with the trace at a speed dependent on the sampling speed. (Section 4.4)
M Channel B Trace – the graphic representation of Time (horizontal) versus Amplitude
(vertical). This line is shown solid to distinguish it from the Channel A trace, which is
shown as a dotted trend line. The line format is user configurable.
N Graphic TREND Window – shows the channel traces, which may be compressed,
expanded, zoomed, scrolled and halted.
P Status Icons – these icons appear at various times to indicate the status of the unit and
the display. From left to right they are:
•The numbers 1,2,3 and 4are the ALARM indicators - one for each alarm. The
numbers are present when the alarm is enabled and will blink if the alarm is in
an alarm condition.
•The Xindicates the status of the EXTERNAL INPUT and is present when the
external input is present.
•The  icon indicates the display is zoomed. The vertical scale indicates the
current values. The display can be scrolled up and down when zoomed using
the Up ▲and Down ▼arrow buttons.
•The  icon indicates the display is compressed. The horizontal time
stamps indicate the current compressed values. The display can function
normally in compressed mode, may be paused or the user can scroll back and
forth using the left ◄and right ►arrow buttons.
•The Hindicates the display is in the HOLD condition. While in HOLD, the
trends do not update. The display enters the HOLD condition when the ID
Cursor (K) is present or the user scrolls in the horizontal direction using the

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left ◄and right ►arrow buttons. Exit the HOLD mode by pressing the MENU
button.
 DO NOT INSERT OR REMOVE THE COMPACT FLASH CARD
WHILE THE BUSY LED IS ON!
1.7 OTHER GRAPHIC MODES
In addition to the full screen trend mode shown section 1.6, there are two additional graphic
display modes.
The Dual Digital mode, as shown below, enables both channels to be shown as Digital values
similar to a digital panel meter. The user has the option of showing the displays in normal or
reverse video (shown) modes, and the display can be set to blink on Alarm Condition.
The other Graphic mode is a split screen with the trend in the top half and the digital display
in the lower half as shown below. When selecting this mode, Channel B is the default digital
value, which is set in the Advanced Setup menu (see Section 4).

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2.0 INSTALLATION AND SETUP
2.1 UNPACKING
2.1.1 Initial Inspection
Exercise care when unpacking the instrument from the shipping carton. The instrument is
packed in a custom cardboard box to prevent damage during normal transit. If damage to
the shipping carton is evident, ask the carrier’s representative to be present when the
instrument is unpacked.
2.1.2 Unpacking Procedure
To unpack your Recorder, first remove the cardboard retainer and instrument from the
shipping carton. Check the box for the following contents - The Recorder, two locking
bars, two 6-32 x ½" screws, AC power supply wall unit (unless the unit is the isolated DC
model) and this manual.
2.1.3 Detected Damage
Remove the instrument from the plastic bag and check for damage if any. Also check that
the unit is as ordered. If damage is detected after unpacking the instrument, immediately
report any damage to the shipping agent and re-pack the instrument for return it to the
factory as described in the following section.
2.1.4 Equipment Return
Before returning a damaged or malfunctioning instrument to the factory for repair, contact
the sales organization from which you purchased the instrument. A Return Merchandise
Authorization (RMA) number must be obtained from the factory before returning an
instrument for any reason.
2.1.5 Storage
For prolonged storage before installation, re-pack the Recorder in the shipping container
and store in a cool, dry area. We do not recommend storage of the Recorder for more
than one year. If longer storage time is required, contact the factory for additional storage
information.
2.2 INSTALLATION
The instrument is intended to operate in the following environment:
Indoor Use Only
Installation Category II per IEC 664
Pollution Degree Level II per IEC61010-1
Altitude up to 2,000 m
Temperature -10 °C to 50 °C operating per IEC61010-1
Humidity Maximum relative humidity 80% for temperatures up to
31 °C decreasing linearly to 50% relative humidity at 40 °C
Recorder Power 9.0 +0.5V dc @ 4.5VA (unless indicated otherwise on the unit)
AC Mains Supply (External adapter) 100 - 240 Vac ~ 50/60 Hz
NOTE: The recorder is designed to be panel mounted and as such should be considered as
permanently connected. Disconnection from the supply must be possible via a customer
supplied switch or circuit breaker. This disconnection device must be included in the panel

10
installation and should be clearly marked, in close proximity to the Recorder and easily
accessible to the operator.
The Recorder is sized to fit in a standard ¼ DIN panel cutout of 92 x 92 mm (3.62 x 3.62 in.)
and requires 140mm (7.5 inches) behind panel depth not including space for power and input
source cable. The thickness of the panel is immaterial, but panels thicker than .125 inch will
require that the locking bars be cut down. Actual dimensions are shown below in Figure 2.1:
WARNING: Do not use this instrument in any manner inconsistent with these operating
instructions or under any conditions that exceed the environmental specifications
stated.
2.2.1 Panel Mounting
The Recorder should be mounted in a vertical panel to ensure proper operation. Ensure
you have the proper clearances and proceed as follows:
2.2.1.1 Cut a panel opening 96 mm x 96 mm (3.62 x 3.62 in.).
2.2.1.2 Remove any packaging material from the Recorder. Always handle the unit
carefully to avoid damaging the LCD display or scratching the display surface.
2.2.1.3 Remove the locking bars from the Recorder enclosure by removing the
captivating screws
2.2.1.4 Insert the Recorder, rear end first, through to front of the panel opening.
2.2.1.5 With the Recorder held firmly in place against the panel, install one of the
locking bar assemblies by sliding the locking bar notch into the groove on the
side of the Recorder enclosure as shown in Figure 2.2.
2.2.1.6 Insert the retaining screw into the rear of the groove. Using a Phillips
screwdriver, tighten the screw until the locking bar is just pressing against the
panel.
2.2.1.7 Install the other locking bar assembly into the groove on the opposite side of
the Recorder enclosure and tighten as before.
5.22
[132.46]
0.30
[7.62]
0.41
[10.41]
0.15
[3.81]
3.78
[96.00] 3.60
[91.44]
4.07
[103.38]
3.78
[96.00]
Figure 2.1 Recorder Dimensions

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Fig 2.3
2.2.1.8 Using the screwdriver, tighten both screws so that the Recorder is held firmly
in place. Do not over tighten.
2.3 CONNECTION
2.3.1 Power Connections
NOTE: The Recorder is designed to be panel mounted and as such
should be considered as permanently connected. Disconnection from
the supply must be possible via a customer supplied switch or circuit
breaker. This disconnection device must be included in the panel
installation and should be clearly marked, in close proximity to the
Recorder and easily accessible to the operator.
THE RECORDER IS DESIGNED TO OPERATE ON 9 Vdc. DO NOT
CONNECT AC MAINS DIRECTLY TO THE UNIT AT ANY TIME
Before connecting any power or inputs to the unit, ensure
that all signal wires and power cables are free of potential.
The unit itself is powered from 9Vdc +0.5V 4.5VA as
standard although other options are available. The external
wall power supply is a high efficiency switcher that will work
from 100 to 240 Volts AC 50/60 Hz. Check the unit to
ensure that the power and inputs are as expected. The DC
power is applied to the unit via a three-way screw terminal
connector. The power supply is supplied with two tinned
leads, the positive lead is identified by the RED shroud over
the wire. The third connection is for system GROUND. You
will require a small flat-head screwdriver. Connect the
WARNING
A
nalog Inputs
Relay Outputs
Digital Input Locking Bar (2)
Retaining Screw (2)
DC Power
Connecto
r
Temperature
Com
p
ensato
r
Fig 2.2 Rear View - Installation

12
power and signal wires accordingly, noting carefully all polarities. Ensure that the unit is
properly grounded to a suitable ground within the cabinet.
Identify the power connector on the rear panel in the top left corner. The power source
required is clearly marked, DC with the specific voltage level. (Refer to Figure 2.3).
Loosen the screws on the terminal block and insert the exposed conductor cable from the
power supply below the screws, under the metal plate. Ensure that the insulation is flush
with the terminal block. If it is too long, remove the cable, trim and reinsert. Tighten the
screw to firmly hold the cable. Ensure the ground wire is connected and properly
grounded at the other end. If you are not using the supplied wall power supply, follow the
same procedure carefully identifying the positive supply line. The unit is protected against
reverse polarity but not against substantial over voltage.
2.3.2 Input Signal Connections
The maximum input on any input channel is 25 Volts dc. Voltages
higher than this may permanently damage the unit.
Ensure the unit is unplugged before connecting any inputs.
There are two universal analog inputs – Channel A and Channel B,
each is programmed independently of the other. Inputs can be voltage
or current (50mA max using an external shunt), thermocouples, RTD’s or TTL compatible
pulse inputs. Isolation is between inputs and the rest of the system. The channels are not
isolated from each other. Connection detail for the various inputs is shown in Figure 2.4.
When connecting the signal wires, keep polarities correct. Also, if inputs are non-
isolated, ensure there are no high common mode voltages and maintain ground integrity.
Figure 2.4 – Connection Detail

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The screw terminals are marked on the rear panel - there are four connections per
channel. The high or positive signal marked IN+, and a low or common signal marked IN-.
The terminal marked Vo is the Auxilliary voltage output used to drive external sensors at
+5Vdc and a maximum of 30mA. The terminal marked I+ is the 1mA current required for
RTDs or resistors. Any screen or shield (often the braided wire) should connect directly to
the system ground and is used to shield the low level input signals from induced noise
pick up.
Connect the signal wires to the terminal block in the manner described above. Use wire of
adequate gauge to carry the signal. The mA input requires the use of an external 250
ohm shunt (Part No. 1034-2500-001). Thermocouples should be connected with special
thermocouple wire of the same type as the input; the terminal block is the reference
junction. Connect any sheath or braid to the GROUND connection. RTD's have an
additional wire, the current source, which is connected to the terminal marked I+. See
Figure 2.4.
WARNING: All unused inputs must have all contacts commoned togther.
CAUTION: Never run signal and power or control wiring together in the same conduit.
This is to prevent possible recording error due to induced signals between lines.
Route signal wires away from power wires at the rear panel.
NOTE: Ground cable shields at one end only to eliminate the possibility of interference
due to ground loop currents. When grounded transducers are used, the shield should
be grounded at the sensor end only.
2.3.3 Relay Output Connections
To prevent the possibility of electrical shock, use extreme
caution when wiring contact output connections. Hazardous
potentials may exist on contact output terminals that are floating
with respect to instrument ground. WIRES FROM REMOTE
SOURCES MAY CONTAIN DANGEROUS POTENTIALS. ENSURE
ALL POWER SOURCES ARE DISCONNECTED BEFORE WIRING
RELAY CONTACTS.
The relay contacts are rated for AC or DC operation (Maximum recommended voltage -
30 Volts.) Each relay has a set of potential free contacts. There is no polarity to the
terminals; it is a normally open contact that closes in alarm condition. These contacts are
internally suppressed for EMI/RFI and High Voltage transients resulting from Inductive
loads. The relays may be programmed as fail safe, which means they are energized in
the “off” condition. This way if the power should fail the relays will open into the alarm
condition.
2.3.4 Digital Input
The digital input is optically isolated and requires an external dc supply of 5 to 12Vdc at
20mA in order to operate. The input is via the DIGITAL INPUT + and – terminals. The -
connection is the COMMON for the external input, while the + is the input for the positive
supply.
The digital input may be used as an External Trigger to stop or start recording, or may be
used to change the sampling speed. Thus the unit can be set to record only when a
conveyor is running for example. The External Trigger may also be linked internally to the
optional Relay Output. This could be used as a remote "record active" indicator. Refer to
Sections 4.3 and 4.10.
2.3.5 Ethernet Connection (Option)
WARNING

14
The Ethernet Connection is an option and will be installed only if specifically ordered. It is
a 10MHz TCP/IP port that allows the user to program the recorder remotely, start or stop
recording and download real time data.
Refer to the separate manual that is supplied with the ethernet interface option.
2.3.6 USB Port (Option)
The USB Port is an option and will be installed only if specifically ordered. It is a serial
connection to a PC that allows the user to program the recorder remotely, start or stop
recording and download real time data.
Refer to the separate manual that is supplied with the USB interface option.
2.3.7 Cleaning
The unit may be cleaned by wiping with a soft cloth. The front panel and display / keypad
may be wiped with a slightly damp soft cloth containing soapy solution or a mild
detergent. Do not use any lemon based (citric acid) product to clean the display /
keypad. NOTE: THE UNIT IS NOT WATERTIGHT.
2.4 INPUT SCALING
The input to the recorder is often a standard process variable (e.g. voltage) rather than the
actual units being measured (e.g. pressure).
There are a number of custom conversions available in the unit to take care of special inputs
such as thermocouples and RTDs, which need special scaling and linearization. These are
preset in the unit and require no modification. There is also the capability to customize any
input variable that has a linear relationship to the measured variable. The relationship
between the required variable and the input variable must satisfy the constraint
y = mx + c
where yis the value to be displayed and recorded, xis the input variable (typically volts or
milliamps DC), mis the scale factor which defines the relationship between the input and the
displayed variable and is a constant (linear relationship), and cis a constant offset variable
that may be positive or negative.
This facility to scale the input is found in the ADVanced SETUP menu and is available to
each channel independently in dual channel units. Here the user can easily scale the input
and set the displayed units using three alphanumeric characters.
The scaling is achieved in the unit in the CHANnel X SETUP option (X = A or B) in the
ADVanced SETUP menu. First set the displayed LO SCALE, which may be positive, negative
or zero. Then set the displayed HI SCALE for the full-scale input. The unit will then
automatically compute the scale factor and offset.
Setting the engineering units is done in the same menu
location using the CHAN UNITS option to set the three
alphanumeric characters.
Let us assume we have an input from a pressure
transducer of 1 to 5 volts DC, corresponding to real
world units of zero to 250 PSI (Pounds per Square Inch
of pressure). Assume we choose the 0 to 5 volt input.
The actual output span of the transducer is 4 volts, with
1 volt = 0 PSI and 5 volts = 250 PSI. This is equivalent
to 62.5 PSI per volt. The LO SCALE which is the "0" volt
5
4
3
2
1
00 125 250
-62.5
(OFFSET)
INPUT
VOLTS
PSI

15
value is equivalent to -62.5 PSI and should be set to this value, and the HI SCALE is set to
"250". The engineering units are set to "PSI". The display will now show zero to 250 PSI for 1
to 5 Volts input. The linear scaling is shown in Figure 2.5 on the previous page.
2.5 ALARMS
The recorder has four programmable internal alarms with dual relay output. The alarms can
be associated with either analog input channel, can be set as high or low, latching or non-
latching with or without lockout capability. Each relay has a set of potential free normally open
contacts (Form A - SPNO) that are accessible from the rear panel via screw terminal
connections. Alternatively the relays can be set to the failsafe mode, normally closed (Form B
– SPNC). The relays can be assigned to any, all or none of the alarms. Refer to section 4.2
and 4.3.
2.5.1 Alarm Types
A high alarm is active when the input is greater than the setpoint. A low alarm is active
when the input is less than the setpoint. A latching alarm will remain set once activated
and must be reset by the operator. Note that the alarm condition should be removed
before resetting the alarm or the alarm will activate and latch again. A non-latching limit
will set on alarm condition and automatically reset once the alarm condition is removed. A
differential, known as hysteresis or deadband can be introduced so that once an alarm is
set (at the setpoint), the input must go beyond the deadband before the alarm resets.
This prevents the output relays from chattering in borderline conditions. The deadband is
set in absolute units and adds to the setpoint in a low alarm, or subtracts from the
setpoint in a high alarm. By way of example, if the setpoint is 100, the hysteresis
(deadband) is set to 5, and the alarm is a high type and non latching, then the alarm will
activate when the input exceeds 100 and will remain active until the input drops below 95
(100 minus 5). Alternatively the user can set a reset delay from 1 to 255 seconds. This
delay must time out once an alarm condition has been removed before the alarm will
reset.
Lockout prevents an alarm from activating until the setpoint has been traversed in the
opposite sense by the input. For example, if we were measuring pressure and had a low
alarm set at 100, we may not wish the alarm to be active on start up when the pressure
may be low or zero. We really wish to monitor a low pressure situation once our target
pressure has been reached, say 150. The lockout prevents the alarm activating at
startup. The alarm remains deactivated until the input exceeds the setpoint. At this point
the alarm arms and any time from this point on that the input drops below the setpoint,
the alarm will activate as normal.
2.5.2 Setting Alarms
Setting and configuration is done in the Advanced Setup Menu.
The alarm setpoints are set in the same units as the inputs and may be different for each
channel. When setting the actual setpoint value, the value may be incremented in steps
other than what is expected (unit steps). This is due to the fact that the input is converted
into a digital value with a finite resolution. It is not possible to set a setpoint value that
cannot be resolved by the internal microprocessor. Select the closest value to the exact
value you require; it will always be with 0.5%. The same applies when setting the
deadband.
Note that when configuring the alarms, there is no correlation between inputs, alarms and
relay outputs. These are user defined. Each alarm can be assigned to only one input
channel.
When setting up each alarm channel, the user should DISABLE the alarm so that
parameters may be changed WITHOUT AFFECTING THE RELAYS. This is done in the

16
ALARMS menu by selecting the ENABLE option so that no appears to the left of this
option. Once everything is set, select ENABLE once more to activate the alarm, indicated
by the presence of the . (Refer to Section 4.2)
 When setting up alarms, you may get unexpected results from the relays if they are
enabled. Ensure there is nothing connected to the relays that could result in an
accident due to random closing of the relays during setup and always DISABLE the
alarm as described above. Make the changes and then re-enable the alarm.
There are many different ways the alarms can be set up. All the alarms can be assigned
to a single channel and may be of the same type giving for example a various degrees of
high warning and ultimately a high shutdown indication. Also, the relays may be assigned
to any combination of alarms. This would allow a single relay output to indicate any alarm
active. The combinations are endless.
2.5.3 Alarm Indication
There are three indications of alarm condition: the relay outputs, visual icons on the
display and audible alarm.
When an alarm is armed and functioning, it is indicated by a small "1", "2", "3" or "4" in
reverse video on the bottom left hand side of the graphic display. These status indicators
remain on as long as the alarm is enabled. If an alarm is triggered (in alarm condition),
the status indicator will blink and the internal beeper will sound. The beeper can be
permanently disabled from the Advanced Setup Menu - BEEPER - ALARMS - OFF.
The relays close on an alarm condition, assuming they have been set up correctly. The
relays can be set as fail-safe by reversing the logic of the alarms (Advanced Setup Menu
- RELAYS - FAILSAFE).
2.6 MEMORY CARDS
The memory cards used are standard CompactFlash™ cards. We recommend the use of
INDUSTRIAL GRADE cards. The cards are keyed and can only go into the recorder right
side up. The largest capacity card that can be accommodated is 2 Gigabytes.
2.6.1 Care of the Data Cards
Do not expose the cards to direct sunlight or extremes of temperature for any length of
time. Do not expose to moisture. Do not bend or twist. Avoid high static discharge. Mail in
suitable packaging to avoid postal damage. When transporting, use an anti-static bag or
the plastic enclosure in which the card is supplied.
2.6.2 Card Storage Capacity and Data Type
Depending on what else is stored on the card (e.g. configurations files, other data files),
data storage capacity can be roughly calculated by the following formulas:
Number of samples is card size divided by 4.4. The time that it will take to fill a card is
roughly the number of samples divided by the sample rate. For example, a 32MB card will
hold roughly 32,000,000 divided by 4.4 = 7,272,727 samples. At 5 samples per second
this is 1,454,545 seconds or 404 hours or approximately 16.8 days.

17
If you show the Card Status window (MENU - CARD STATUS), it will indicate how much
time is left on the card. It also displays the current Filename that is being used for
recording.
The files on the card are in DOS standard format and can be managed on any
Windows™ based machine with a CompactFlash™ reader - internal or external. The
content of the files is in proprietary binary format and requires special software to read the
data. All units are supplied with the DataChart Navigator Software, which allows the data
to be exported to Excel.

18
3.0 BASIC OPERATING INSTRUCTIONS
The Basic mode of operation encompasses those functions that would be done on a routine
basis and relate primarily to viewing and reviewing data with some use of the menu system.
The advanced mode, while technically still simple to operate, involves setting up the unit and
would typically need to be done only once.
3.1 BASIC MODE OF OPERATION
Basic operations are all done using the five buttons on the front panel (shown below) and the
first level menu.
Each arrow button has dual functions. The second function is activated by pressing and
holding the MENU (2nd Function) button and then pressing any of the other buttons. The 2nd
function of each button is denoted by the text under the arrow symbol. (EXPAND,
COMPRESS, ZOOM + and ZOOM -).
The unit need not be recording to the memory card in order to manipulate data. The data
available however is dependent on how long the unit has been operating, the sample rate
and the buffer or memory card size.
3.2 VIEWING HISTORIC DATA
Any data that is not currently visible on the screen is historic data. To view past data, the left
(◄) and right (►) arrow buttons are used to rewind (◄) or fast forward (►) the data
(scrolling). When rewinding, data will be retrieved from the memory card or from the internal
buffer and is available as far back as the start of recording. When fast forwarding, data is
available up to real time. The time and date stamp on the screen indicates the relative time of
the samples being viewed.
Viewing by scrolling is limited to the file (or files) created since recording was manually
started via the RECORD MODE Menu - ON. It is possible to view data from other files of
previously recorded data (or even data recorded on another machine). See Section 3.8.
At any stage during the rewind or fast forward process, the screen can be restored
to current or real time display by pressing the MENU button.
When the data on screen is not current, an .H.appears on the status line to
indicate that the rewind or compress mode is active and the data is on Hold.
3.3 COMPRESSING AND EXPANDING DATA (TREND VIEWING)
In order to view data trends, it is often necessary to pack more data onto the screen than is
normally visible in real time. To compress the data, press and hold the MENU (2nd Function)
key and then press the COMPRESS (►) key. Each time this key is pressed the amount of
data on the screen will double up to a maximum of 32 times (equivalent to 5 sequential key
presses). Once compressed, data can be rewound and fast forwarded as described in the
previous section. The data can be expanded back after being compressed by pressing and
holding the MENU key and then pressing the EXPAND (◄) button.

19
Note that compression displays peak values (both high and low). Thus even though data is
compressed, all amplitude information is present on the display. At compressions of 16 times
or greater, the redraw time of data on the screen slows down due to the large amounts of
data that must be manipulated.
At any stage during the compression or expansion process, the screen can be
restored to current or real time display by pressing the MENU button.
When the data on screen is compressed, a →← appears on the status line to
indicate that the compress mode is active.
3.4 ZOOMING DATA (AMPLIFICATION)
As a result of the small display area available, it is not always possible to see small changes
in amplitude of the recorded signals even though the resolution of the internal converters can
measure it. To overcome this problem you can ZOOM in on a portion of the graph and get
increased resolution.
To ZOOM in and amplify the graph, press and hold the MENU key, press the ZOOM+ (▲)
button and then release both buttons. The display will zoom in by 2. Note that the scale units
change to reflect the increased zoom level. There are three zoom levels available: x1, x2 and
x4.
To decrease the zoom level (or zoom out), press and hold the MENU key, press the ZOOM-
(▼)button and then release both buttons.
Note that when zoomed in at any zoom level, the (▲)and (▼)buttons will move the graph
relative to the window enabling viewing of any part of the graph within the zoom window.
Once in a zoom level, all functions are operational on the zoomed display.
When in a zoom mode, the zoom level is indicated by a ↑↓ icon on the status line.
No indication indicates Real Time (X1).
To exit the zoom mode, zoom out as far as possible until the ↑↓ icon disappears.
3.5 MENU MODE
At any time when in normal view mode, pressing the MENU button will
bring up the user menu as shown to the right. Note that the menu "pops
up" over the graphics display. The unit continues to record and will not
lose data. There is also a time out option that will return a menu display
back to a graphic display after a period of inactivity. (Refer to Section
4.4 DISPLAY - MENU TIMEOUT).
 When the menu is active, the Left Arrow (◄) and Right Arrow
(►) buttons act as ESCAPE keys to return to a previous level without
activating any function.
The user moves about the menu using the Up Arrow (▲) and Down Arrow (▼) buttons. The
current selection is always highlighted in reverse. To select a function, simply move to it with
the (▲) and (▼) buttons and then press the MENU button once. To go back a level without
activating any function, simply press the (◄) or (►) buttons. Note that the menu has more
options than can be displayed at once on the screen. When a selection gets to the top or
bottom of the menu list, the list will scroll until the last entry is reached then cycle around.
Pressing and holding the (▲) and (▼) buttons will activate an Auto Repeat function and
cause the highlight bar to scroll automatically.
EXIT! ….. .
ALARM RESET!
RECORD MODE..
CURSOR ID!
VIEW FILE..
CARD STATUS!
SAMPLE RATE..
PASSWORD..
ADV.SETUP..
DISPLAY ADJ..