Thermomax SM DUE User Manual
THERMOMAX
SM DUE
TWO CHANNEL DATALOGGER AND ALARM
ENGLISH
www.Thermomax-Group.com
CONTENTS
SECTION 1 - INTRODUCTION .............................................................................. 2
SECTION 2 - INSTALLATION ................................................................................ 3
2.1 - SM DUE Unit ......................…….................................................... 4
2.2 - Sensors .......................................................................................... 4
2.3 - Alarm Relay .................................................................................... 5
2.4 - Power Connections and Wiring Diagram ................................ 5
2.5 - Battery ............................................................................................. 5
SECTION 3 - OPERATION ................................................................................... 6
3.1 - DESCRIPTION ............................................................................. 6
3.2 - MAIN SCREENS:
3.2.1 MAIN SCREEN 1: Channel Temperature Display ...... 8
3.2.2 MAIN SCREEN 2: Current Day Plot Screen ............…. 9
3.3 - SET SCREENS:
3.3.1 SET SCREEN 1: Clock / Calendar …............................. 10
3.3.2 SET SCREEN 2: System Pre-sets 1............................... 11
3.3.3 SET SCREEN 3: System Pre-sets 2 …………....……. 13
3.4 - SYSTEM DIAGNOSTICS:
3.4.1 DATABANK DIAGNOSTICS SCREEN ........................... 14
3.4.2 CHANNEL DIAGNOSTICS SCREEN ............................ 15
3.4.3 CALIBRATION TRIMMING SCREEN ............................. 16
3.5 - CHANNEL SCREENS: /
3.5.1 CHANNEL DISPLAY SCREENS .................................... 17
3.5.2 CHANNEL SET SCREENS ............................................ 18
3.6 - PLOT HISTORY :
3.6.1 Data log of previous days ………………………............ 19
3.7 - DATA TRANSFER: ................................................................. 20
3.7.1 Transferring Data Using the Masterlink Software ..... 20
3.7.2 Transferring Data to the Masterlink Hardware ........... 20
3.7.3 Printing Data to the Thermomax Serial Printer ............ 22
3.8 - DATA TRANSFER - PANELMOUNT UNITS ONLY ........................ 23
SECTION 4 - FAULT FINDING .........................................................................…. 27
SECTION 5 - SPECIFICATIONS .......................................................................… 28
KEYPAD LOCK …………………………………………………………......……. 29
SM DUE PANELMOUNT ……………………………………........……………… 30
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2
SECTION 1 INTRODUCTION
The SM DUE microprocessor-based datalogger uses the novel approach of a
paperless logging and filing system, which allows the data of any day in its history to
be read and examined with a few key presses.
The large graphics LCD display communicates the information to the user with
clarity, making programming and setting up friendly and uncomplicated, without
compromising its sophistication and digital accuracy.
SUMMARY OF FEATURES
DATALOGGER
• Paperless datalogger with automatic filing by date
• 50-year clock / calendar for datalogger filing.
• The temperature from each Channel is sampled every 5 minutes and stored
to an internal databank.
• ‘Percentage of internal databank used’ indication in bargraph and digital form.
• Once the databank is 100% full, the first eighth of the stored data will
automatically be replaced. (For the capacity of the databank, see Section 5).
• Power Supply options of either Mains or DC.
• Contents of internal databank can be transferred directly to the PC using the
MASTERLINK Software or via a MASTERLINK Hardware module to a PC at
a remote site.
ALARM
• 2-Stage high and low level alarms with mute and reset facilities,
• Stage 1 temperature threshold with trigger delay.
• Stage 2 limit temperature with immediate trigger.
• Diagnostics screen revealing system parameters.
• Alarm history record for low alarm, high alarm and power fail.
• Battery back-up for power-fail operation.
Note: The information supplied in this manual is for guidance only - no part of this
may be used for any agreement, whether express or implied, or to form any contract.
SECTION 2 INSTALLATION
Note: This installation procedure is for guidance only, and its suitability should be
verified by the installer.
SAFETY PRECAUTIONS
1. Before attempting to install and operate the unit, read this instruction manual
carefully.
2. Installation and any maintenance required should only be carried out by
suitably qualified personnel.
3. It is recommended that the unit be connected to the mains supply via a
suitably rated isolating switch.
4. WARNING: When the unit is connected to the mains supply and the
cover is opened, circuits at mains voltage will be exposed. Therefore
when installing the unit, ensure all required connections (including battery
connection, if included), are made and covers replaced before turning on the
mains supply. Ensure that all the connections made are secure. If any
maintenance work is required e.g. installing a new battery, ensure that the
unit is isolated from the mains supply before removing the cover. Never
leave the unit unattended if the cover has been removed and the mains
supply is connected.
5. Do not exceed unit ratings as shown on the ratings label.
6. It is advisable to route mains cables away from low voltage or sensor cables.
3
2.1 SM DUE UNIT
NOTE: For viewing comfort, the SM DUE unit should be positioned at eye
level. It is always good practice to keep electronic equipment away from
cold, heat and electrical plant, as extremes of temperature may reduce the
lifetime of the device, and heavy electrical loads, switches, relays or
contactors too close to the device may cause electrical and electro-magnetic
interference when switched on or off.
2.1.1 Knock out the entries into the moulding to be used for connection, either
behind or under the moulding, whichever is suitable for the particular
installation.
2 .2.2 Fasten the screw corresponding to the top centre lug on the back of the SM
DUE moulding, into the wall or panel on which the unit is to be mounted.
Leave a gap of approximately 3mm between the screw head and the wall.
Position the moulding and slot in the lug over the screw.
2.2.3 Level the SM DUE moulding and, if using rear entry, mark the entry holes in
the panel behind the appropriate knock-out entries, as well as the two lower
mounting holes.
Remove the moulding, drill the necessary holes in the panel, assemble any
grommets or conduit adapters if used, replace the moulding and fasten using
the two lower screws.
2.2 SENSORS
Temperature sensors, SXTM PT100 are used with all Thermomax units. They
are available in lengths from 5m to 100m, as are the sensor extenders, and
all come with a 4-way telephone plug. Each sensor comes with an original
Thermomax calibration certificate. The standard sensor can measure
temperatures from +50°C / -50°C.
Note: Using suitable 3-core or 4-core cable, the sensor can be extended,
according to the diagram shown below.
Note: In doing this, Thermomax calibration is removed.
The standard sensors PT100 are not suitable for use in acidic or alkaline
environments and should not be used in fluids.
Please note however, that as with all PT100 sensor applications, a good
connection is vital. It is therefore recommended that wherever there is any
doubt, a factory- extended sensor or sensor extender should be used.
4
2.3 ALARM RELAY
NOTE: The alarm relay is a 3 contact changeover arrangement that is
isolated (volt-free). This relay is normally energised, and switches off when
the alarm is triggered, or in the case of power failure. It may be used to
trigger an external bell, warning lamp, or digital communicator (telephone
dialler).
If an external device is used connect the alarm as appropriate, according to
the diagram in the next section.
2.4 POWER CONNECTIONS AND WIRING DIAGRAM
NOTE: This device should be properly earthed. Flexible wires simplify
connection to the terminals. All connections should be secure and adequately
tightened. It is good practice to keep mains cables away from sensor cables
and other low voltage signal cables.
Connect the supply to the unit, as per diagram below, using the appropriate
input voltage according to the application.
Alarm
Relay
L E N + -
Connect as appropriate
to application
Mains
Input
220 - 240V AC
DC
Input
20 - 28V DC
Sensors
CH1 CH2
SWITCH OPEN = DOOR OPEN
SWITCH CLOSED = DOOR CLOSED
Doo
r
max
5A
PC
2.5 BATTERY
The battery supplied is a 9V PP3 nickel metal hydride rechargeable battery
and is attached to the lid of the terminal compartment, but not plugged in.
This should be plugged in after installation. This battery is not essential for
the system operation, but is used in the case of power failure, thereby
continuing to log the two input temperatures for 6 - 7 hours, and maintaining
the system clock.
If the power cut takes longer and the battery is discharged, the clock must be
set when the power supply is re-established. The system parameters remain
intact.
It is recommended that the battery is changed every 12 months, in order to
maintain good power failure operation. When replacing, ensure that the type
of battery used is as specified - only a rechargeable PP3 battery should be
used directly, as the battery is charged from the unit.
5
6
SECTION 3 SM DUE OPERATION
In order to fully understand the operation of the SM DUE, this section should
be read carefully.
3.1 DESCRIPTION
SM DUE
°C
MIN -6.0 MAX -5.5
1 GRAPHICS LCD DISPLAY
Displays all the information. The contrast is adjustable to suit the user.
(See 3.2.1 Main Screen 1).
2 FUNCTION KEYS
There are six function keys on the SM DUE datalogger:
- Main Screen 1 - Channel 2 Display Screen
- Main Screen 2 - Channel 2 Set Screen
- Set Screen 1 - Plot History Screen
- Set Screen 2
- Channel 1 Display - Data Transfer Key
Screen
- Channel 1 Set Screen
3 SELECT KEYS
Within each function, there are some parameters that can be selected for
setting or displaying purposes. The keys allow the required
parameter to be chosen, without changing any of its properties.
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4
3
2
1
4 SET KEYS
The and keys are used to set the value of any selected parameter, by
increasing and decreasing the value respectively. In most of the functions,
described later in the manual, the and keys have an auto-repeat
facility: press and hold the key in order to advance quickly.
Note: The and keys are the only keys which can alter the value of a
selected parameter. Other keys may be pressed to view or select these
parameters without effecting any change in the system.
5 INDICATORS
The System Alarm can be triggered by the high temperature alarm, low
temperature alarm, or by a sensor fault.
7
DATA TRANSFER IN PROGRESS
SYSTEM ALARM
8
3.2 MAIN SCREENS
3.2.1 MAIN SCREEN 1: CHANNEL TEMPERATURE DISPLAY
SM DUE
1 MAIN SCREEN function selector.
2 Two channel digital temperature display, viewed in either °C or °F.
3 High and Low Alarm Limits for each channel plus date of last alarm.
4 Maximum and minimum daily temperatures for each channel.
Note: The display contrast may be adjusted in this screen. Press to
increase and to decrease the contrast. To adjust quickly, press and hold
for auto-repeat.
2
3
5
14
3.2.2 MAIN SCREEN 2: CURRENT DAY PLOT SCREEN
SM DUE
CHAN 1
1 MAIN SCREEN function selector
Pressing this key a second time displays the plot of the temperatures logged
for the current day. When this function has been selected, the current day
plot screen for either of the channels may be displayed by pressing the
appropriate channel function selector key: or .
2 Time of Day: This is the horizontal axis scale, and represents time. The
required twelve-hour period is selected using the keys.
3 Current Time-Bar: The time-bar indicates the current time of day, and
therefore the graph following this time bar will be blank. Samples from earlier
in the day may be examined by pressing the key to move the time-bar to
the left. The status of the current time bar is detailed at the bottom of the
screenas per 4-6 below.
4 Plot Time: This displays in digital form, the time indicated by the time-bar.
(The time is displayed in 5-minute sample intervals).
5 Plot Date: This shows the date of the currently displayed graph.
6 Time-Bar Temperature: This displays the logged temperature at the
time indicated by the time-bar. (The time / temperature is displayed in 5
minute sample intervals).
7 Alarm Log: Alarm indication to reveal the incidence of an alarm, the
time it occurred and its duration.
8 Unique electronic serial number of SM DUE.
9 ‘Other Channel’ Range: Display of max. and min. temperatures recorded.
10 This area of the display shows any occurrence of a cold room door
opening.
Note: The recorded temperature data is displayed graphically with a 10
minute sample interval.
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8
9
65
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7
3
2
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