2408i Engineering Handbook

2408i Engineering Handbook
2408i Series Process Indicators
User
Manual
Part No: HA027240_5
Date:
February 2015
2408i Indicator
Engineering Manual
MODEL 2408i INDICATOR
User Manual
Contents
1
Installing and Operating Instructions ....................................................................................................................... 3
1.1
1.2
1.2.1
1.2.2
1.3
1.3.1
1.3.2
1.3.3
1.4
1.4.1
1.4.2
1.4.3
2
Operation ..................................................................................................................................................................... 6
2.1.1
2.1.2
2.2
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.3
2.3.1
2.4
2.4.1
2.5
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
2.5.6
3
To View The Display Units .........................................................................................................................................................6
Home Display Options...............................................................................................................................................................6
Alarms ................................................................................................................................................................................................7
Types of Alarm Used In The 2408i ...........................................................................................................................................7
Alarm Relay Output ....................................................................................................................................................................7
Alarm Indication ..........................................................................................................................................................................8
Alarm Messages ..........................................................................................................................................................................8
Diagnostic Alarms.......................................................................................................................................................................9
To Acknowledge An Alarm .......................................................................................................................................................9
Alarm Inhibit ................................................................................................................................................................................9
To Change The Alarm Setpoints (trip levels) ...................................................................................................................... 10
Auto-Tare (Display Zero) ............................................................................................................................................................. 11
To Use Auto Tare ..................................................................................................................................................................... 11
To Access and Change Parameter Values ............................................................................................................................... 12
Operator Level Navigation Diagram (factory default) ....................................................................................................... 12
Parameter tables ........................................................................................................................................................................... 13
HOME List ................................................................................................................................................................................. 13
Alarm List................................................................................................................................................................................... 13
Setpoint List .............................................................................................................................................................................. 13
Input List .................................................................................................................................................................................... 14
User Calibration Lists – Inputs 1 and 2 ................................................................................................................................. 14
Access List ................................................................................................................................................................................. 14
Password Protected Levels of Operation ...............................................................................................................15
3.1
3.1.1
3.2
3.3
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.3.6
3.3.7
3.3.8
3.3.9
3.4
3.4.1
3.4.2
3.5
3.5.1
3.6
3.6.1
3.6.2
3.6.3
3.6.4
3.6.5
3.6.6
3.6.7
3.6.8
3.6.9
3.7
3.7.1
3.7.2
1.
Contents of package .......................................................................................................................................................................3
Dimensions and Installation ..........................................................................................................................................................3
To Install the Indicator................................................................................................................................................................3
Removing The Indicator From The Sleeve .............................................................................................................................3
New Sleeve Design MkIII ...............................................................................................................................................................4
Details ...........................................................................................................................................................................................4
Reasons for the Change ............................................................................................................................................................4
Recommendations......................................................................................................................................................................4
Electrical Connections ....................................................................................................................................................................5
Wiring ...........................................................................................................................................................................................5
Plug-in Module Connections ....................................................................................................................................................5
Communications Modules ........................................................................................................................................................5
Access levels .................................................................................................................................................................................. 15
To Select Full or Edit Access Levels ...................................................................................................................................... 15
Navigation Diagram (full and edit levels) ............................................................................................................................... 16
Parameter Tables .......................................................................................................................................................................... 18
HOME List ................................................................................................................................................................................. 18
Alarm List................................................................................................................................................................................... 18
Setpoint List .............................................................................................................................................................................. 18
Input List .................................................................................................................................................................................... 19
User Calibration Lists .............................................................................................................................................................. 20
Custom Linearisation List 1 or 2 ............................................................................................................................................ 23
Digital Communications List .................................................................................................................................................. 24
Information List......................................................................................................................................................................... 24
Access List ................................................................................................................................................................................. 24
To Hide, Reveal and Promote Parameters ............................................................................................................................... 25
List Headers .............................................................................................................................................................................. 25
Parameters ................................................................................................................................................................................ 25
Calibration ..................................................................................................................................................................................... 26
User Calibration ....................................................................................................................................................................... 26
Transducer Calibration ................................................................................................................................................................ 27
Shunt Calibration ..................................................................................................................................................................... 27
To Calibrate a Strain Gauge Bridge Transducer ................................................................................................................ 27
Load Cell Calibration .............................................................................................................................................................. 29
To Calibrate a Load Cell ......................................................................................................................................................... 29
Comparison Calibration ......................................................................................................................................................... 30
To Calibrate by Comparison with an External Reference ................................................................................................. 30
Manual Calibration .................................................................................................................................................................. 31
Auto-Tare or Display Zero ...................................................................................................................................................... 32
To Enter a Fixed Offset to the Tare Value ............................................................................................................................ 32
Custom Linearisation ................................................................................................................................................................... 33
Example: To Linearise Input 1 .............................................................................................................................................. 33
Compensation for Sensor Non-Linearities .......................................................................................................................... 33
Part Number HA027240
CN32726 Issue 5.0
Feb 2015
2408i Indicator
Engineering Manual
4
CONFIGURATION LEVEL ........................................................................................................................................ 34
4.1
Hardware configuration - I/O Modules .................................................................................................................................... 34
4.2
Software configuration ................................................................................................................................................................ 35
4.2.1
To Select Configuration Access Level .................................................................................................................................. 35
4.3
Location of Parameters – From Indicator Block Diagram...................................................................................................... 36
4.4
Navigation diagram (configuration level) ............................................................................................................................... 37
4.5
Configuration Parameter Tables - All indicators ..................................................................................................................... 38
4.5.1
Instrument configuration list .................................................................................................................................................. 38
4.5.2
Sensor Input Configuration List ............................................................................................................................................. 39
4.5.3
Alarm Configuration ................................................................................................................................................................ 41
4.5.4
Alarm Inhibit ............................................................................................................................................................................. 42
4.5.5
2408i Indicator With Alarm Inhibit Timer............................................................................................................................. 43
4.5.6
Digital inputs 1 and 2 Configuration .................................................................................................................................... 44
4.5.7
Peak Hold and Sample and Hold .......................................................................................................................................... 45
4.5.8
Relay Output 1 Configuration ................................................................................................................................................ 46
4.6
Configuration Parameter Tables – plug in modules ............................................................................................................... 48
4.6.1
Communications Module ....................................................................................................................................................... 48
4.6.2
Communications Parameters ................................................................................................................................................. 48
4.6.3
PDS input Module .................................................................................................................................................................... 48
4.6.4
DeviceNet Communications .................................................................................................................................................. 50
4.6.5
Module 1, 2 and 3 Configuration Lists ................................................................................................................................. 51
4.6.6
Changeover Relay or Dual Relay Output Module .............................................................................................................. 51
4.6.7
Triple Logic Output Module .................................................................................................................................................. 51
4.6.8
Triple Logic Input or Triple Contact Closure Input Module ............................................................................................. 52
4.6.9
DC input Module ..................................................................................................................................................................... 53
4.6.10 DC Retransmission Module .................................................................................................................................................... 55
4.6.11 Strain Gauge Transducer Supply .......................................................................................................................................... 55
4.6.12 Transmitter Power Supply ...................................................................................................................................................... 55
4.7
Indicator calibration ..................................................................................................................................................................... 56
4.7.1
To Calibrate Input 1 or 2 ......................................................................................................................................................... 56
4.7.2
To Calibrate Retransmission Output .................................................................................................................................... 57
4.7.3
To Restore Factory Calibration .............................................................................................................................................. 57
4.7.4
Calibration Parameters ........................................................................................................................................................... 58
4.7.5
Password Configuration ......................................................................................................................................................... 58
4.7.6
To Leave Configuration Level ................................................................................................................................................ 58
5
Ordering Code .......................................................................................................................................................... 59
6
Safety and EMC Information ................................................................................................................................... 60
7
Technical Specification ............................................................................................................................................ 61
2
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
Engineering Manual
2408i Indicator and Alarm Unit
1 Installing and Operating Instructions
Thank you for choosing the 2408i panel mounted indicator. It will provide accurate measurement and display of
temperature and other process variables. A modular build accepts a wide range of plug-in modules allowing: up
to four alarm outputs, two process variable (PV) inputs, direct strain gauge/pressure sensor measurements,
custom linearisation, analogue retransmission, remote setpoint (SP) input and digital communications.
The indicator is supplied configured in accordance with the order code. The order code and instrument serial
number is shown on a label fixed to the top of the case, and this can be checked against the order code given in
section 5 of these instructions.
1.1
Contents of package
o
1.
A peel-off label set - a convenient position is to fix a label
to the top right of the display.
2.
A 2.49Ω resistor used as the load resistor for a mA input
3.
Two panel retaining clips
4.
Panel sealing gasket
1.2
Dimensions and Installation
C
m/s
x10
p.s.i
p.s.i.x10
o
F
cm/s
1x10
bar
mmHg
48 mm
(1.89 in)
V
A
%
%pH
rev/min
mV
mA
%RH
pH
mile/h
Amps
Panel retaining clips
2408I
88888
AL1 AL2
AL3
AL4
ACK/
RESET
150mm (5.9in)
Latching ears (top & bottom)
1.2.1
kPa
mWG
T/h
mPas
gal/min
Sealing gasket
96 mm (3.78 in)
E
U
R
O
T
H
E
R
M
K
l/h
l/min
mbar
Kg/cm2
To Install the Indicator
Please read the safety information in section 6 before proceeding.
The indicator is intended to be mounted on a panel within an enclosure such as a control cubicle.
1. Prepare the panel cut-out to the size shown.
2. Fit the sealing gasket behind the front bezel of the instrument.
3. Insert the indicator in its sleeve through the cut-out.
4. Spring the panel retaining clips into place. Secure the indicator in position by holding it level and pushing
both retaining clips forward.
5. Peel off the plastic film protecting the front of the indicator.
Panel cut-out
92
X
-0.0 +0.8
3.62
0.0 +0.03
X
Recommended minimum spacing of indicators
45 mm
-0.0 +0.6
38mm (1.5in)
1.77 in
-0.0 +0.02
(Not to scale)
38mm (1.5in)
1.2.2
W
Removing The Indicator From The Sleeve
The indicator can be removed from its sleeve by easing the latching ears outwards and pulling it forward out
of the sleeve. When plugging the indicator back into its sleeve, ensure that the latching ears click into
place to maintain the moisture sealing protection.
It is recommended that power to the controller is turned off when removing or replacing the controller into
its sleeve, to prevent premature wear on the connectors when current is flowing through them.
Part Number HA027240
Issue 5.0
Feb 2015
3
2408i Indicator
Engineering Manual
1.3
New Sleeve Design MkIII
From Jan-03 an improved design of 1/8 DIN long sleeve is shipped with all new 2408 controllers and indicators.
(The month and year of manufacture are shown in the last two pairs of digits of the instrument serial number).
1.3.1
Details
A new sealing gasket will be fitted onto the instrument bezel . This gasket replaces the gasket which was
moulded into the front of the sleeve of all previous instruments.
The gasket previously moulded into the sleeve where it fits behind the panel is now supplied as a separate item
.
1.3.2
Reasons for the Change
This change is to ensure that IP65 sealing is reliably achieved and less physical effort is required to insert the
instrument into the new sleeve.
1.3.3
Recommendations
1.
An instrument delivered after Jan 03 should be used with the sleeve supplied
2.
If the instrument is required to replace one already in use, the existing sleeve should also be replaced
3.
A new instrument can be fitted into an existing sleeve by carefully removing gasket  but IP65 sealing
will not be maintained
4.
An existing instrument can be fitted into a new sleeve but IP65 sealing will not be maintained
It is, however, possible to achieve IP65 sealing for 3 and 4 above. A gasket kit is available from Eurotherm by
quoting Part No SUB24/GAS2408.
Then:5.
To fit a new instrument in an older sleeve carefully remove gasket . Replace it with the thinner
(1.25mm) gasket from the kit
6.
To fit an existing instrument into a new sleeve fit the thicker (1.6mm) gasket from the kit between the
instrument and the sleeve
The seal  supplied as a separate item with a new instrument, should be placed over the sleeve prior to mounting
it through the panel cut out as shown below:Panel
New
Instrument
Sleeve seal 
(supplied as a
separate item)
Instrument
sleeve
New gasket  fitted onto bezel
4
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
1.4
Engineering Manual
Electrical Connections
Configurable Plug-in
Module Connections
3D
3C
3B
3A
2D
Module 3
2C
2B
2A
Module 2
JF
JE
JD
1C
1B
1A
W Be sure to check the
Module 1
correct supply voltage
before applying power
Comms Module
PDS Input Module
Plug-in Communications
Module Connections
1D
JC
JB
JA
HF
HE
HD
AC
AB
AA
LC
LB
LA
HC
HB
HA
N
L
Sensor inputs
Connections common
to all indicators
V-
V+
VI
Power Supply Connections
Relay Output 1
NC
T/C
Pt100
NO
Com
Digital
input 2
mA
Low voltage supply
Neutral
Ground
Line
24
24Vac/dc
2.49Ω
0-10 Vdc
Digital
input 1
Analogue Input 1
1.4.1
24
230Vac
Ground
Wiring
2
The screw terminals accept wire sizes from 0.5 to 1.5 mm (16 to 22 AWG) and should be tightened to a torque of
0.4Nm (3.5lb in). Hinged terminal covers provide IP20 protection.
1.4.2
Plug-in Module Connections
Modules are fitted in positions 1, 2 and 3 in accordance with the ordering code. The tables below show the
connections for each module and the possible functions they can perform.
Note: On the wiring label the module number precedes the terminal identity letter given in the table below. For
example, 1A, 1B, 1C.
Module Type
Terminal Identity
A
B
C
Module
Type
Typical
D
Functions
Relay;
changeover
Alarm or Event
Dual relay
(normally open)
Alarms or events
DC
retransmission
+
-
Analogue
retransmission of
PV
Transmitter
supply 24V
+
-
To power
transmitters
Strain Gauge
Transducer
supply
(see note 1)
+
-
To power strain
gauges.
(5V or 10V
selectable)
Cal
resistor
Terminal Identity
B
C
2nd Analogue
Input
(Analogue
Input 2)
(module 3
only)
By default:
Typical
Functions
D
-
+
Thermocouple
PRT
+
-
+
-
High
impedance
0 - 2.0Vdc
+
-
millivolts
mA (2.49Ω
sense resistor)
+
Notes:1.
A
-
Triple contact
input
ip1
ip2
ip3
Com
Triple
input
digital
ip1
ip2
ip3
Com
Triple digital
output
op1
op2
op3
0 - 10Vdc
The transducer supply for input 1 is installed in module position 2
The transducer supply for input 2 is installed in module position 1
2.
All module connections are isolated from the process value, earth, incoming supply and connections to other
modules.
3.
Digital inputs are non-isolated from the process value.
Digital inputs are powered by the indicator. Switching voltage and current 24Vdc/20mA.
W
See Section 7 for specifications and maximum safety limits
1.4.3
Communications Modules
Digital Communications Module
PDS Module
Terminal identity
Module type
RS232
Terminal identity
HB
HC
HD
HE
HF
-
-
Com
Rx
Tx
B (-)
RS485 (2-wire)
-
-
Com
A (+)
RS485 (4-wire)
Rx+
Rx-
Com
Tx+
Tx-
Shield
VP
B
A
DGND
Profibus
Part Number HA027240
Issue 5.0
Feb 2015
Setpoint Input
JD
JE
JF
-
Signal
Common
5
2408i Indicator
Engineering Manual
2 Operation
Switch on the indicator. After a 3 second self-test sequence, you will see the display shown below. This is called
the ‘HOME’ display.
The default is Process
Value (PV).
(See section 2.1.2 for
other HOME display
options)
Operator Buttons
Increase parameter value
Decrease parameter value
Select parameter
Select parameter list heading
See following sections for more detail
20
AL1
AL2
AL3
AL4
Alarm 1
Alarm 2
Alarm
Beacons
2.1.1
ACK/
RESET
Alarm 3
Alarm 4
Press to
acknowledge
alarms
To View The Display Units
If the indicator has been configured for a thermocouple or RTD input, the temperature units can be viewed as
follows:
Do This
This Is The Display You Should See
Display Units
0.5 sec
1. Press and quickly release
the
or
*
C Celsius OR *F Fahrenheit OR *K Kelvin
The display units are shown for 0.5 second
o
button.
20
C
Note: For linear inputs no units are displayed. In this case:
or
2.1.2
Additional Notes
Press
2.1.2.
to go directly to the disp display - see section
Press
to go directly to the AL List - see section 2.2.4.
Home Display Options
When shipped from the factory the HOME display will show the measured temperature or process value. This is
the ‘front’ display.
If either
or
is pressed the display changes to the ‘back’ display for a period of two seconds. The back
display can show an alternative measurement, such as alarm setpoint or second PV input value.
Do This
This Is The Display You Should See
Example
Parameters which can be allocated to the Front and Back
displays
The HOME display will be blank and only
<nonE>
alarm messages will be flashed
Setpoint (for deviation alarms)
<SP>
<rm.SP> Remote setpoint (for deviation alarms)
‘back’ display =
Alarm setpoint.
1.From the HOME display,
press
or
2 secs
100
20
<PV.Hi>
<PV.Lo>
<PV>
<AL.SP>
<L1>
<L2>
or
or
again to
2. Press
adjust the Alarm Setpoint
between hi & lo limits

Pressing
and
Additional Notes
‘front’ display =
Process Value
Displays the maximum value on input 1
Displays the minimum value on input 1
Process Value
Alarm 1 setpoint
Linearised input 1
Linearised input 2
Note:
If the indicator has been ordered to read the highest (order
code HI) or lowest values (order code LO) between input 1
and 2, the display shows only this value.
If PV function ordered as FN, the displayed reading will be
derived from inputs 1 and 2.
The back display is not selectable in this mode
together will always return to the HOME display.
OR
The display will always return to the HOME display if no button is pressed within 45 seconds.
This time is reduced to 10 seconds if an alarm is being displayed.
6
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
2.2
Engineering Manual
Alarms
Alarms are used to alert an operator when a pre-set level has been exceeded. They are normally used to switch
an output (see section 2.2.2.) – usually a relay – to provide external actions to the process.
Soft Alarms are indication only and do not operate an output.
Events are generally defined as conditions, which occur as part of the operation of the plant. They do not require
operator intervention and, therefore, do not cause an alarm message to be displayed. They can be attached to
operate an output (relay) in the same way as an alarm.
2.2.1
Types of Alarm Used In The 2408i
This section shows graphically the operation of different types of alarm used in the indicator. The graphs show
changes in PV plotted against time. The PV may be derived from input 1, input 2 or the main PV which is derived
from input 1 & 2.
Alarm Type
PV
Full Scale High
Process Variable (PV)
Deviation High
Deviation
Band
Setpoint (SP)
Deviation Low
Full Scale Low
Rate of Change
Output State
Full Scale Low
On
Deviation Low
On
On
On
Deviation High
Deviation Band
On
On
On
Full Scale High
Rate of Change
On
On
On
Time
Rate of change alarms detect if the rate of change in PV,
set as units per minute or per second, exceeds the
setpoint value. An alarm setpoint set + will detect
positive rates of change. An alarm setpoint set - will
detect negative rates of change. Therefore, if it is
required to measure the rate of change in both
directions then two alarms must be configured. Since
rate of change alarms are calculated over a period of
time a small delay may be apparent before the alarm is
indicated. This is generally only noticeable if the PV
changes very quickly.
Deviation Alarms. The setpoint used for deviation
alarms is normally derived as a remote input from
another device - for example, a temperature
controller. The setpoint can also be internally set
within the controller - in this case called the local
setpoint value.
Hysteresis is the difference between the point at which
the alarm switches ON and the point at which it switches
OFF.
Blocking Alarms only occur after the start up phase
when the alarm has first entered a safe state. The
alarm is only indicated the next time it is active. It is
used, for example, to ignore start up conditions which
are not representative of running conditions.
It is used to prevent relay chatter.
Latching Alarms see 2.2.6
2.2.2

Alarm 1
Alarm Relay Output
Alarms can operate a specific relay or logic
output. Any individual alarm can operate an
individual output or any combination of alarms
can operate an individual output. They are
either supplied pre-configured in accordance
with the ordering code or set up in configuration
level.
Part Number HA027240
Issue 5.0
Delay a settable time between an alarm occurring and
it being displayed on the indicator
Feb 2015
nor
Alarm 2
Alarm 3
Input fail
Sensor break
OR
Logic or
Relay output
SEnS
dIG
inv
Any combination of alarms can operate the relay or logic output.
The diagram shows typical alarms
7
2408i Indicator
Engineering Manual
2.2.3
Alarm Indication
An alarm occurs when the process conditions exceed a pre-set level (setpoint). It will be displayed on the
indicator as follows:1.
The relevant alarm beacon will begin to flash
2.
A four character alarm message will be shown as a double repeating flash in the main display. This message
specifies the alarm number (first character) and the type of alarm that has occurred (next three characters).
The message is flashed in addition to the ‘front’ displayed value
If more than one alarm is present the relevant beacon illuminates and further messages are flashed in the main
display. The alarm indication will continue while the alarm condition is present and is not acknowledged.
1FSL
20
‘front’ display = Process Value (PV)
‘The message indicates the alarm type
eg.
<1FSL> = Alarm 1 Full Scale Low
See ‘Alarm Messages’ below for the full list.
AL1
Alarm Beacon
2.2.4
Alarm Messages
Display
Alarm type
Input
Source
Alarm description and function
First character
1---
Alarm 1 is active
2---
Alarm 2 is active
3---
Alarm 3 is active
4---
Alarm 4 is active
Last three characters
-FSL
-FL1
Full Scale Low
-FL2
-FSH
-FH1
Full Scale High
-FH2
-dLo
-dL1
-dL2
Deviation Low
-dHi
-dH1
Deviation High
-dH2
-Dev
-Dv1
Deviation Band
The process value is:-
below the low alarm setting on the main PV
PV 1
below the low alarm setting on PV 1
PV 2
below the low alarm setting on PV 2
Main PV
above the high alarm setting on the main PV
PV 1
above the high alarm setting on PV 1
PV 2
above the high alarm setting on PV 2
Main PV
below the low deviation setting on main PV
PV 1
below the low deviation setting on PV1
PV 2
below the low deviation setting on PV2
Main PV
above the high deviation setting on main PV
PV 1
above the high deviation setting on PV1
PV 2
above the high deviation setting on PV2
Main PV
above or below the high and low deviation setting on main PV
PV 1
above or below the high and low deviation setting on PV1
PV 2
above or below the high and low deviation setting on PV2
-rat
Rate of change
(minutes)
Main PV
changing faster than the rate-of change alarm setting in minutes for
main input.
-ras
Rate of change
(seconds)
Main PV
changing faster than the rate-of change alarm setting in seconds for
main input.
-rt1
Rate of change
(minutes)
Input 1
changing faster than the rate-of change alarm setting in minutes for
input 1.
-rs1
Rate of change
(seconds)
Input 1
changing faster than the rate-of change alarm setting in seconds for
input 1.
-rt2
Rate of change
(minutes)
Input 2
changing faster than the rate-of change alarm setting in minutes for
input 2.
-rs2
Rate of change
(seconds)
Input 2
changing faster than the rate-of change alarm setting in seconds for
input 2.
-LSP
-HSP
Setpoint Low
Main PV
Setpoint High
Main PV
-Dv2
Sbr

8
Main PV
The setpoint is:-
below the low alarm setting
above the high alarm setting
Sensor Break alarm (open circuit input on whichever input is being
used as the PV)
If the process value flashes but no other alarm message is displayed, this indicates that the input which is
being used as the PV is out of range.
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
2.2.5
Engineering Manual
Diagnostic Alarms
In addition to the process alarms given in the previous column the following diagnostic alarms may also appear.
These warn that a fault exists in either the indicator or the connected devices.
Alarm
What it means
What to do about it
Electrically Erasable Memory Error: The
This fault will automatically select configuration level. Check all
configuration parameters before returning to operator level. Once
in operator level, check all operator parameters before resuming
normal operation. If the fault persists or occurs frequently, return
the unit for repair.
LLLL
Out of range low reading
Check the value of the input
HHHH
Out of range high reading
Check the value of the input
Err1
Error 1: ROM self-test fail
Return the indicator for repair
Err2
Error 2: RAM self-test fail
Return the indicator for repair
Err3
Error 3: Watchdog fail
Return the indicator for repair
Err4
Error 4: Keyboard failure. Stuck button,
or a button was pressed during power up.
Switch the power off and then on without touching any of the
indicator buttons. If the error continues return the unit for repair.
Err5
Error 5: Input circuit failure
Return the unit for repair
Hw.Er
Hardware error
Check that the correct modules are fitted. Go to configuration
mode and set up the required parameter(s). See section 4 for
further information.
EE.Er
value of an operator or configuration
parameter has been corrupted.
Indication that a module is of the wrong
type, missing faulty, or a new module has
been fitted.
Pwr.F
Power failure: The line voltage is too low
Check that the supply is within rated limits
rmt.F
Remote input fail
Connect an input device (eg. transducer, thermocouple, mA source)
to input 2
2.2.6
To Acknowledge An Alarm
An alarm can be acknowledged in two ways:1. Press the ACK/RESET button. (If this does not work it may have been disabled when the indicator was
configured).
2. Press
and
together.
The action, which now takes place, will depend on the type of latching, which has been configured
Non Latched Alarms
If the indicator has been configured for non-latching alarms the following action occurs:Alarm condition present when the alarm is acknowledged, will be indicated by a single repeating flash of the
alarm message and the beacon will continuously illuminate. This state will continue for as long as the alarm
condition remains. When the alarm condition disappears the indication will also disappear.
If a relay has been attached to the alarm output, it will operate when the alarm condition occurs and remain in the
operated condition until the alarm is acknowledged AND it is no longer present.
If the alarm condition disappears before it is acknowledged the alarm indication disappears as soon as the
condition disappears.
Latched Alarms
The indicator may have been configured for Automatic or Manual reset. The action which occurs when the
acknowledge button is pressed is described below:-
Automatic.
The alarm continues to be active until both the alarm condition is removed AND the alarm is acknowledged. The
acknowledgement can occur BEFORE the alarm condition is removed.
Manual
The alarm continues to be active until both the alarm condition is removed AND the alarm is acknowledged. The
acknowledgement can only occur AFTER the alarm condition is removed.
2.2.7
Alarm Inhibit
If a digital input has been configured for alarm inhibit, then all process alarm indication will be prevented for as
long as the input is ON. When the input is turned to OFF any alarms which are active will be displayed. If a delay
has been set on the alarm, the delay period will start from the time when the input is turned OFF. If the alarm has
been configured as latching the latching action is also inhibited whenever the input is ON. See section 4.5.4 and
4.5.6.
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2.2.8
To Change The Alarm Setpoints (trip levels)
Parameters are grouped in ‘lists’ according to their function. Each list has a heading.
button steps through the parameter list headings (see section 2.4.1.)
The
The first list is the alarm setpoints list AL
Do This
This Is The Display You Should See
1. From any display press
as
many times as necessary to show
the ‘Alarm List’ header
2.
AL
If
or
are pressed the word
<List> is displayed for 2 secs
List
AL

400.0
1---
or
to change
Press
the alarm setpoint
There are four alarm setpoints. The first
character is the alarm number, the next
three the alarm type (see section 2.2.4.)
If an alarm has been disabled in
configuration level, it will not appear in
this list.
or
To return to the HOME display:-
4.
•
Press
•
or continue to press
•
or the indicator will return to the HOME display if no button is pressed for 45 seconds (10 seconds if an alarm condition is
present).
Th li
10

Press
to show the first
parameter in the list
3.
Additional Notes
f
and
together
il bl
d
hi li
h
d
i
h
i
h
bl
i
Part Number HA027240
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2408i Indicator
2.3
Engineering Manual
Auto-Tare (Display Zero)
The auto-tare function is used, for example, when it is required to weigh the contents of a container but not the
container itself. Alternatively, it can be used to set a fixed offset on an initial measured value.
2.3.1
To Use Auto Tare
Place the empty container on the weigh-bridge. Then:Do This
1.
This Is The Display You Should See
From any display press
as
many times as necessary to
show the <CAL1> List’ header
CAL1
to scroll to <tAre>
2.
Press
3.
Press
or
and change
from <Off> to <on>
tare
on
Additional Notes

Use <CAL2> if the load cell is
connected to input 2

The indicator automatically calibrates
itself to the empty container.
When <tArE> is turned to <on>, the
display will change to <buSY>. When
calibration is complete the display will
return to the HOME display.
It will then return to the main display.
If the calibration fails the alarm message
<tdr.F> (transducer fail) will flash.
Press
and
buSY
4.
to acknowledge.
20
Return to the HOME display as described above
Note:The indicator will not return to the HOME display until the calibration procedure completes.
If calibration does not complete after a period of 5 minutes, then calibration is aborted.
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2.4
To Access and Change Parameter Values
Parameters are settings within the indicator, which determine how it will operate. Examples are Alarm Setpoints
and Tare Values already mentioned. They are organised into different lists. Each list has a named heading which
describes a particular subject, for example ‘Alarms’ <AL>
2.4.1
Operator Level Navigation Diagram (factory default)
This list shows the parameters available in operator level in a new instrument.
To find a parameter:Press
to select the list heading
Press
to select the parameter
Press
or
Examples are shown in sections 2.2 8. and 2.3.1.
to change its value
To return to HOME page keep pressing
Note:- The first press
displays the instrument units
described in 2.1.1.
HOME
List
Alarm
List
Setpoint
List
Input
List
AL
SP
iP
1---
sp L
int.t
2---
sp H
Input 1 calibration Input 2 calibration
List
List
X2
(2)
20
CAL1
CAL2
Access
List
ACCS
(1)
dsp.f
CodE
(1)
dsp.b
Goto
(1)
Cid
3--(1)
4---

•
Only present if ordered with
configuration options SG or MP, see
ordering code section 5.
See also section 3 for the full list of
parameters available and calibration
details.
Blocks shown shaded are dependant upon the order code as follows:(1) These parameters are only shown if the alarm has been configured
(2) CAL2 list is only shown if Input 2 has been configured
•
12
The above list can be customised to suit the requirements of a particular process. Complete lists or
individual parameters in a list can be added during commissioning. The procedure is described in
section 3.4 ‘To Hide. Reveal and Promote Parameters’.
Part Number HA027240
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2408i Indicator
2.5
Engineering Manual
Parameter tables
The parameter tables provide a full list of parameters, an explanation of their use and where to find them.
Use these lists to adjust:•
The alarm setpoints
•
The User calibration
•
The alarm setpoint limits
•
The input filter time constant
2.5.1
•
The communications address
HOME List
20
HOME
Home List
dSP.F
HOME display front
Selectable options
The HOME display will be blank
<nonE>
and only alarm messages will be
flashed
Setpoint (for deviation alarms)
<SP>
<rm.SP>
<PV.Hi>
<PV.Lo>
<PV>
<AL.SP>
<L1>
<L2>
dSP.b
HOME display back
C.id
Customer defined identity number - an
indicator can be associated with a physical
position
2.5.2
Default
PV
Remote setpoint (for deviation
alarms)
Displays the maximum value on
input 1. This parameter is the
same as <LOG.H> in <inFo> list
Displays the minimum value on
input 1. This parameter is the
same as <LOG.L> in <inFo> list
Process Value
Alarm 1 setpoint
Linearised input 1
Linearised input 2
0 to 9999
0
Alarm List
AL
AL
Alarm list
Comments
Adjustable Range
1---
Alarm 1 setpoint
The last three letters indicate the
Between low and high setpoint limits
which
0
2---
Alarm 2 setpoint
Alarm type. See section 2.2.4.
As set in the SP list.
0
3---
Alarm 3 setpoint
If the alarm is disabled the
parameter
Rate of change alarms are direction
sensitive
0
4---
Alarm 4 setpoint
will not appear in this list
from-9999 to +99999 units/sec or min
0
2.5.3
Default
Setpoint List
SP
sp
Setpoint list
Adjustable Range
Default
SP L
Setpoint low limit – PV alarms
Input range min and max (combination of
As per
SP H
Setpoint high limit – PV alarms
inputs 1 & 2
Order
code
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2.5.4
Input List
iP
ip
Setpoint list
Adjustable Range
int.t
Input filter integrating time constant
OFF to 999.9 seconds
Default
1.6
Set to a value which reduces the effect of any input
noise to an acceptable level. The higher the value the
more sluggish the response
2.5.5
User Calibration Lists – Inputs 1 and 2
CAL.1 or
CAL.2
(CaL 2 only appears if input 2 has been configured)
CAL.-
User calibration 1 or 2 list
Adjustable Range
Default
tAre
Performs automatic ‘Tare’ correction
OFF
on
busy
done
OFF
See also section 2.3.
2.5.6
ACCS
code
= Off
= start correction
= inputting value
= finished inputting value
Access List
The Access List provides password protected access to further levels of operation as listed below.
See section 3 for further details.
A code number can be entered using the
or
buttons. If an incorrect code number is entered the
display will revert to <codE>. If no button is pressed within 45 seconds the indicator will automatically return to
the HOME display.
For information on further levels of access, see the following sections.
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3
Password Protected Levels of Operation
3.1
Access levels
Parameters are protected under different levels of access for which numerical password codes can be set up. The
levels are:Access Level
What you can do
Default Code
OPer
To view and adjust a limited set of parameters within limits set in higher levels
FuLL
To view and adjust all parameters which are required to operate the indicator
1
Edit
Allows parameters to be hidden or promoted to operator levels (see section 3.4)
1
Conf
Allows access to configure the fundamental characteristics of the indicator
2
CAL.P
This special level which appears in the CAL1 and CAL2 lists allows access to the
calibration procedure for the indicator
3
The following sections this manual describe the features available in Full, Edit and Configuration levels.
3.1.1
To Select Full or Edit Access Levels
Do This
This Is The Display You Should See
1. From any display press
as
many times as necessary to
access the ‘Access List’ header
menu
2.
Press
or
to
enter the password
PASS
codE
Press
4.
or
Press
<FuLL> level
2 secs
!
to select
List
ACCS
<PASS> will be displayed momentarily when
the correct password is been entered
In the special case that the passcodes have been
configured as 0, it will not be necessary to enter
a passcode
to show <Goto>
3.
or
are
If
pressed the word
<List> is displayed
for 2 seconds
The factory default password is 1
2 secs
to show
<code>Press
ACCs
Additional Notes
FuLL
Goto
Options are:
<OPEr>
Operator level - shows selected
operator parameters
<FuLL>
Reveals the ‘FULL’ set of
parameters
<Edit>
Allows parameters to be hidden
or promoted
<ConF>
Gives access to configuration
level (see section 4). The factory
default password is 2
Having entered a higher level you can select <OPEr>, <FuLL> or <Edit> levels at will.
Remember to return to <OPEr> level following completion of commissioning or configuring the
instrument..

This may be done by:1.
Switching the indicator off and back on again.
OR
2.
Go to <OPEr> level and enter a false password number to re-lock the indicator in this level.
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Engineering Manual
3.2
Navigation Diagram (full and edit levels)
Use the following lists to adjust:
•
The alarm setpoints
•
The alarm setpoint limits
•
The input filter time constant
•
The User calibration
•
The communications address
The diagram below shows the complete list of possible parameters which may be shown in Full and Edit access
levels. In practice, the parameters that appear will depend upon the configuration of your particular indicator .
HOME List
20
Alarm
List
This list only contains
parameters for alarms
which have been
configured
AL
X2
Setpoint List
Input List
SP
ip
Transducer
Calibration List 1
This list is only
applicable to
transducer on
input 1
Transducer
Calibration List 2
This list is only
applicable to
transducer on
input 2
CAL1
CAL2
X2
DsP.F
DsP.b
C.id
(1)
1---
(2)
2---
(2)
3---
(2)
4---
rm.SP
rm.tr
Sp
HY 1
(7)
Hy 2
(7)
Hy 3
SP 1
Sp 2
FiLt
(3)
(4)
(7)
(7)
(7)
Sp L
Hy 4
1dEL
L-r
Sp H
(7)
Sp 1.L
(7)
(5)
(7)
(5)
3deL
(7)
(5)
4dEL
(7)
2deL
Sp 2L
Sp 2H
(5)
(6)

Parameters are hidden by default. See section 3.4
to ‘Reveal’
Parameters are only displayed when the option has
been configured as follows:Each alarm must be configured
Only shown if a DC Input module is fitted in slot 3 and ‘Remote
setpoint input’ is configured
(3) If filter Type = Integration
(4) If filter Type = Step
(5) Only shown if a DC Input module is fitted in slot 3 and ‘Derived
Value’ is configured (<Func> = <Ftn>, see section 4.6.7.)
(6) Only shown if a DC Input module is fitted in slot 3 and ‘Select
input 2’ is configured
(7) Only shown if a DC Input module is fitted in slot 3
(8) Only shown if the input is configured for ‘Pyrometer’
(9) Only shown if a DC Input module is fitted in slot 3 and
‘Pyrometer’ input is configured
(10) Only shown if the input is configured for ‘Thermocouple’
(11) Only shown if a DC Input module is fitted in slot 3 and
‘Thermocouple’ input is configured
(1)
(2)
int.t
TaRe
(12)
CaLp
TaRe
(12)
CaLp
stP.b
CAL
CAL
FLt.2
pnt.L
pnt.L
in2.t
Adj.L
Adj.L
st2.b
pnt.H
pnt.H
OFS1
adj.H
adj.H
OFS2
tare.v
tare.v
Lo.IP
inp.L
inp.L
Hi.IP
scL.L
scL.L
F.1
inp.H
inp.H
F.2
scL.H
scL.H
PV.iP
mV.1
(7)
(8)
(9)
mV.2
For parameter availability see ‘User
Calibration Lists’ section 3.3.5.
EmiS
EmS.2
(10)
CJC.1
(11)
CJC.2
12.
Only shown if SG is present in the
Options field of the ordering code
Li.1
(7)
Li.2
(7)
PV.SL
Continue to CUST
List on the next page
Figure 3-1: Navigation Diagram
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Engineering Manual
Summary
A.
Press
to step across the list headings.
B.
Press
to step down the parameters within a particular list. You will eventually return to the list heading.
C.
Press
to view the value of a selected parameter. Keep pressing to decrease the value.
D. Press
to view the value of a selected parameter. Keep pressing to increase the value.
Continued
from CAL2 List
Back to
HOME List
Custom Linearisation
List 1
This list only appears if
custom linearisation on
input 1 is configured
Custom Linearisation
List 2
This list only appears if
custom linearisation on
input 2 is configured
CUSt1
(13)
in L
(13)
Communications
List
This list only appears if a
communications board is
fitted
CUSt1
cmS
in L
Addr
Information
List
Access
List
inFo
ACCS
Log.L
CodE
Goto
VAL.L
VAL.L
Log.H
in H
in H
LoG.A
VAL.H
VAL.H
LoG.t
in 2
in 2
Log.u
VAL.2
VAL.2
rES.L
in 14
in 14
VAL.14
VAL.14
13.
<mV.C>, <V.C> or
<mA.C> are configured, see Sensor
Only shown if:-
Input Configuration List section 4.5.2.
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Engineering Manual
3.3
Parameter Tables
3.3.1
HOME List
20
Mnem
-onic
Meaning
Adjustable Range
dSP.F
HOME display front
See ‘HOME display options’
PV
dSP.b
HOME display back
section 2.1.2.
None
C.id
Customer defined identity number
0 to 9999
0
Adjustable Range
Default
setting
Between low and high setpoint
limits which are set in the
<SP> list
Rate of change alarms are
direction sensitive from-9999
to +99999 units/sec or min
0
0
0
0
3.3.2
Default
setting
Customer
setting
Alarm List
AL
Mnem
-onic
Meaning
1---
Alarm 1 setpoint
2---
Alarm 2 setpoint
3---
Alarm 3 setpoint
4---
Alarm 4 setpoint
In place of dashes, the
last three letters
indicate the alarm type:
as shown in the ‘Alarm
Messages’
table section 2.2.4.
Customer
setting
If the alarm is disabled the parameter will not appear in this list
HY 1
Alarm 1 Hysteresis
HY 2
Alarm 2 Hysteresis
HY 3
Alarm 3 Hysteresis
HY 4
Alarm 4 Hysteresis
1dEL
Alarm 1 delay
2dEL
Alarm 2 delay
3dEL
Alarm 3 delay
4dEL
Alarm 3 delay
In.AL
Inhibit alarm timer
InH.t
Time alarm
inhibited
3.3.3
Prevents relay ‘chatter’
by setting a difference
between the relay ON
and OFF points
1 to 99999 display units
Used to ignore
transient alarms.
Alarms must be true for
the delay time before
they become active
0 to 999.9 seconds
To inhibit alarms for a
time, see section 4.5.5
On/OFF
1 to 99999 display units
1 to 99999 display units
1 to 99999 display units
0 to 999.9 seconds
0 to 999.9 seconds
0 to 999.9 seconds
0 to 999.9 seconds
1
1
1
1
0
0
0
0
OFF
0
Setpoint List
SP
Mnem
-onic
Meaning
Adjustable Range
L- r
Remote setpoint enable
Loc
Select local SP
rmt
Select remote SP
Default
setting
Loc
rm.SP
Remote master setpoint (for deviation alarms)
Displays remote SP value
rm.tr
Remote setpoint track.
OFF
No tracking
This parameter only appears if remote setpoint
has been configured
trAc
Local SP tracks
remote SP
SP 1
Local master setpoint value for deviation
alarms on input 1
SP1.L to Sp1.H
20
SP 2
Local master setpoint value for deviation
alarms on input 2
SP2.L to SPH.2
20
SP
Setpoint value when the combination of inputs
1 & 2 provide the measured value to the
indicator (for deviation alarms)
SPL to SPH
SP L
SP H
PV Alarms
Setpoint low limit
Setpoint High limit
Input range min and max
(combination of input 1 2)
As per order
code
SP1.L
SP1.H
Input 1 Alarms
Setpoint Low
Setpoint High
Between input 1 sensor range
min and max
As per order
code
SP2.L
SP2.H
Input 2 Alarms
Setpoint Low
Setpoint High
Between input 2 sensor range
min and max
As per order
code
18
Part Number HA027240
Customer
setting
N/A
Read only
OFF
Issue 5.0
Feb 2015
2408i Indicator
3.3.4
Engineering Manual
Input List
iP
Mnemonic
Meaning
Adjustable Range
FiLt
Input 1 Filter Type
For explanation of filter action
see section 3.3.4.2.
Int.t
Input 1 filter time
constant
Appears if Filter Type =
<Int> Used to reduce
process value flicker on any
input other than weigh scales
StP.b
Input 1 filter Step
Band
Appears if Filter Type =
<StEP> Used to reduce
process value flicker on weigh
scale inputs
The above three parameters are repeated for input 2 as <FLt2>,
Default
setting
No input filter
Off
Int
Integrating Step
StEP
OFF to 999.9 seconds
1 to 100
(% maximum noise band)
Customer
setting
1.6
10
<in2.t> and <st2.b> respectively
OFS1
Input 1 calibration
Offset
See section 3.5.1
OFS2 (1)
Input 2 calibration
Offset
999.9 to 999.9
Lo.IP
Hi.IP
Transition of indication between input 1 and 2 (if
configured)
Between input sensor
range minimum and
maximum.
As per
order
code
<F.1> and <F.2> are constants to achieve a
-9.99 to 10.00
0.5
where PV = <F.1> x input 1 + <F.2> x input 2
-9.99 to 10.00
0.5
Selects input 1 or input 2
ip.1
• The displayed value is derived from input
1when PV is below <Lo.IP> and from input 2 when
PV is above <Hi.IP>
999.9 to 999.9
•
When PV is between <Lo.IP> and <Hi.IP>
the displayed value is a combination of both inputs
<Lo.IP> cannot be set to a value above
<Hi.IP>
•
This is described further in section 4.6.9.1
F.1
(2)
derived PV
F.2
(2)
(1)
PV.ip
ip.2
Input 1
selected
Input 2
selected
ip.1
mV.1
Input 1 mV measured at the rear terminals
Read-only
Read-only
mV.2(1)
Input 2 mV measured at the rear terminals (module 3)
Read-only
Read-only
CJC.1
Input 1 Cold junction compensation temperature measured at the rear terminals.
Only applies if the input 1 type = thermocouple
Read-only
Read-only
CJC.2(1)
Input 2 Cold junction compensation temperature measured at the rear terminals
(module 3) Only applies if the input 2 type = thermocouple
Read-only
Read-only
Emis
Input 1 Emissivity. Only applies if the input 1 type = pyrometer
EmS.2 (1)
Input 2 Emissivity. Only applies if the input 2 type = pyrometer
Li.1
Input 1 Linearised value
Read-only
Read-only
Read-only
Read-only
Li.2
(1)
PV.SL
Input 2 Linearised value (module 3)
Shows the currently
selected PV input
ip.1
Input 1 selected
ip.2
Input 2 selected
both
Both input 1 and input 2 are configured
ip.1
Notes:
(1) These parameters only appear if input 2 has been configured
(2) These parameters only appear if a derived input has been configured
3.3.4.1
Example: To Measure to Differential Between Input 1 and Input 2
1.
From the above list, select <F.1> and set its value to 1.
2.
From the above list, select <F.2> and set its value to -1.
3.
The derived PV will read the difference between Input 1 and Input 2
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Engineering Manual
3.3.4.2
Filter Type
There are three settings for the filter type
1.
Filter Type = Off. The display will respond immediately to any change in the PV input. If, however, there is
any input noise this will result in fluctuations of the reading
2.
Filter Type = Integrating action. This is designed for all process input types with the exception of weigh cell
transducers as explained in section 3.6. The function is exponential which means that, for a step change in
the input, the displayed value will move rapidly at first towards the new reading then gradually slow as the
reading approaches the PV value. The effect is that small rapidly changing input values are ignored. The rate
of response is set, in seconds, by the parameter Int.t, which only appears for this type of filter. The larger
the value the more sluggish the response
3.
Filter Type = Step Band. This is specifically designed for weighing applications. The filter only responds
when the displayed value becomes close to the measured value. This means that for a step change in the
input the displayed value will change rapidly towards the measured value then slow as it reaches this value.
The step band is set by the parameter StP.b which only appears for this type of filter. The units approximate
to 1µV steps – the larger the setting more sluggish the response over the final stages of the reading. This type
of filter is used, for example, where a weigh bridge or load cell is subject to vibrations
3.3.5
User Calibration Lists
These lists only appear if the ‘Type of Calibration’, <tYPE>, is configured for strain gauge type transducer
applications (see Configuration Chapter for further details). The lists below are shown for each type of calibration.
If <Type> = <OFF> the lists are not displayed.
Some parameter mnemonics remain the same for each type of transducer, but their functions may vary in detail
between the different types. The tables are repeated, therefore, for each calibration type.
The tables are followed by a description of procedure to use for each type of calibration.
3.3.5.1
Calibration Type = Shunt (<tYPE> = <Shnt>)
See also section 3.6.1.
CAL1
CAL2
Mnemonic
Meaning
Adjustable Range
Default
setting
tArE
Performs automatic ‘Tare’ correction
OFF = Off
on
= Start correction
busy = Calculating value
OFF
0 to 99999
3
See ’USER CALIBRATION’ section for
further description
CAL.P
Calibration password -See ‘USER
CALIBRATION’
Customer
setting
The following three parameters only appear when the correct password has been entered
CAL
Calibration type
Fact
Factory calibration
restored
USEr
User calibration enabled
FAct
The following two parameters are only shown if <USEr> is selected as the calibration type
Start point low calibration
OFF
Calibration complete
Note: In shunt mode this parameter starts
both zero and span calibration. Its
mnemonic is common to other transducer
applications
on
Start calibration
tArE.v
Tare Value
This allows a fixed offset to
be applied to the displayed
reading. It must be set
before auto tare is started
-999.9 to 99999 display units
0.0
S.G
Specific
gravity
multiplier
For materials with specific
gravity different from water
(1)
0.01 to 999.9
1.00
ScL.L
Scale Low
point
Defines the low calibration
point for the transducer
(normally 0% of the
transducer range)
-999.9 to 99999 display units
0
ScL.H
Scale High
point
Defines the high calibration
point for the transducer
(normally 80% of the
transducer range)
-999.9 to 99999 display units
0
Pnt.L
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Part Number HA027240
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Issue 5.0
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2408i Indicator
3.3.5.2
Engineering Manual
Calibration Type = Load Cell (<tYPE> = <Ld.C>)
See also section 3.6.3.
CAL1
CAL2
Mnemonic
Meaning
Adjustable Range
Default
setting
tArE
Performs automatic ‘Tare’ correction
See ’User Calibration’ section for further
description
OFF
= Off
OFF
on
= Start correction
Customer
setting
busy = Calculating value
Calibration password -See ‘USER
0 to 99999
CALIBRATION’
The following four parameters only appear when the correct password has been entered
Calibration type
Factory calibration
CAL
Fact
restored
User calibration enabled
USEr
CAL.P
3
FAct
The following three parameters are only shown if <USEr> is selected as the calibration type
Pnt.L
Pnt.H
Start point low calibration
Start point high calibration
OFF
Calibration complete
on
Start low point calibration
OFF
Calibration complete
on
Start high point
calibration
OFF
OFF
tArE.v
Tare
Value
This allows a fixed offset to be
applied to the displayed
reading. It must be set before
auto tare is started
-999.9 to 99999 display units
0.0
S.G
Specific
gravity
multiplier
For materials with specific
gravity different from water (1)
0.01 to 999.9
1.00
ScL.L
Scale Low
point
Defines the value which will be
displayed when the load is
removed from the cell
-999.9 to 99999 display units
0
ScL.H
Scale
High
point
Defines the value which will be
displayed when the load is
placed on the cell
-999.9 to 99999 display units
0
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2408i Indicator
Engineering Manual
3.3.5.3
Calibration Type = Comparison <tYPE> = <Cm.P>
See also section 3.6.5.
CAL1
or
Mnemonic
Meaning
Adjustable Range
Default
setting
tArE
Performs automatic ‘Tare’ correction.
See ’USER CALIBRATION’ section for further
description
OFF = Off
on
= Start correction
busy = Calculating value
OFF
CAL2
Calibration password.
0 to 99999
See ‘USER CALIBRATION’
The following four parameters only appear when the correct password has been entered
Calibration type
Factory calibration
CAL
Fact
restored
User calibration enabled
USEr
CAL.P
Customer
setting
3
FAct
The following three parameters are only shown if <USEr> is selected as the calibration type
Pnt.L
Pnt.H
Start point low calibration
Start point high calibration
OFF
Calibration complete
on
Start low point calibration
OFF
Calibration complete
on
Start high point
calibration
OFF
OFF
tArE.v
Tare Value
This allows a fixed offset to
be applied to the displayed
reading. It must be set
before auto tare is started
-999.9 to 99999 display units
0.0
S.G
Specific
gravity
multiplier
For materials with specific
gravity different from water
(1)
0.01 to 999.9
1.00
ScL.L
Scale Low
point
Automatically adjusts to the
value entered at <Pnt.L>
-999.9 to 99999 display units
ScL.H
Scale High
point
Automatically adjusts to the
value entered at <Pnt.H>
-999.9 to 99999 display units
Calibration Type = Manual <tYPE> = <mAn>
See also section 3.6.7.
CAL1
or
CAL2
Mnemonic
Meaning
Adjustable Range
Default
setting
CAL.P
Calibration password -See ‘USER
CALIBRATION’
0 to 99999
3
Customer
setting
The following four parameters only appear when the correct password has been entered
CAL
Calibration type
Fact
Factory calibration
restored
USEr
User calibration enabled
FAct
The following three parameters are only shown if <USEr> is selected as the calibration type
inP.L
Input low
Set to the low electrical input
which is to correspond to the
low display reading
-999.9 to 99999 display units
ScL.L
Scale Low
point
Set to the display reading
corresponding to <inP.L>
-999.9 to 99999 display units
inP.H
Input high
Set to the high electrical input
which is to correspond to the
high display reading
-999.9 to 99999 display units
ScL.H
Scale High
point
Set to the display reading
which corresponds
to<inP.H>
-999.9 to 99999 display units
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2408i Indicator
3.3.6
Engineering Manual
Custom Linearisation List 1 or 2
CAL1
or
CAL2
Mnemonic
Meaning
Adjustable Range
Default
setting
in L
Adjust low input value
min input
VAL.L
Adjust displayed value corresponding
to input low
min display
in H
Adjust high input value
Max input
VAL.H
Adjust displayed value corresponding
to input high
max display
in 2
Adjust input break point 2 value
VAL.2
Adjust displayed value corresponding
to point 2
Customer
setting
The values entered must be
continuously increasing or
decreasing
to
in 14
Adjust input break point 14 value
VAL.14
Adjust displayed value corresponding
to point 14
This list only appears if a custom download input has been configured.
Further information on Custom Linearisation is given in section 3.7.

Having entered the values for the custom linearisation it is necessary to power down the instrument and
power back up again to enter the values otherwise they will be clamped to zero. Alternatively enter then
leave configuration level.
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2408i Indicator
Engineering Manual
3.3.7
Digital Communications List
cmS
Mnemonic
Meaning
Adjustable Range
Default
setting
Addr
Indicator communications address
1 to 99 EI Bisynch
1
Customer
setting
1 to 254 Modbus
This list only appears if digital communications has been configured.
3.3.8
Information List
inFo
Mnemonic
Meaning
Adjustable Range
Default
setting
Customer
setting
Log.L
Logged Minimum
Process Value
Can be manually adjusted
Read-only
Read-only
LoG.H
Logged Maximum
Process Value
These values are
logged by the
indicator
Can be manually adjusted
Read-only
Read-only
Log.A
Logged Average
Process Value
from switch on
Read-only
Read-only
LoG.t
Time process
value is above
threshold level
To reset switch the
indicator supply off
and
Time displayed in minutes
Read-only
Read-only
Log.v
Process value
threshold for
timer log
on again or scroll to
<rESL> and select
<YES>
Between display min and max
0
rES.L
Logging reset
no
YES
3.3.9
Logging in
progress
Will reset logged
values
no
Access List
The Access List is the same as section 2.5.6.
ACCS
Mnemonic
Meaning
OPer
To view and adjust a limited set of parameters within limits set in higher levels
FuLL
To view and adjust all parameters which are required to operate the indicator
Edit
Allows parameters to be hidden or promoted to operator levels (see section 3.4.)
Conf
Allows access to configure the fundamental characteristics of the indicator
CAL.P
This special level which appears in the CAL1 and CAL2 lists allows access to the calibration procedure for the
indicator
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2408i Indicator
3.4
Engineering Manual
To Hide, Reveal and Promote Parameters
In Edit level you can choose customise the operator level display by choosing which parameters can be made
available. The choices are:-
<ALtr> The parameter will be alterable
<HidE> The parameter will be hidden
<rEAd> The parameter will be read-only
<Pro>
The parameter will be ‘promoted’ into the HOME list (see below)
3.4.1
List Headers
Any list of parameters shown in the Navigation Diagram, section 3.2. can be made available or hidden in Operator
level.
Do This
This Is The Display You Should See
1. Enter <Edit> level as described
in 3.1.1.
2 secs
2.
2 secs
3.
Edit
Goto
Press
to select the list to be
hidden eg <SP> the setpoint
parameters
Press
or
Additional Notes
HidE
SP
If <HidE> is selected the complete list will
not be available in Operator level
to select
<HidE> or <rEAd>
3.4.2
Parameters
Any parameter in a list can be made available or hidden in the same way as the complete list header as described
above. They can also be made read only or promoted as shown in the two following examples.
3.4.2.1
The <Pro> (Promote) Option
Up to twelve commonly used parameters can be ‘promoted’ into the HOME list. This will give the operator quick
access to them by simply pressing the
button. This feature, used in combination with ‘hide’ and ‘read only’
allows you to organise the way in which you want your indicator formatted.
Pro
Low alarm 1 has been selected
1FSL
Press
or
to choose <Pro>.
The parameter <1fsL> will now appear in the HOME list. Repeat the procedure for any other parameters you
wish to promote.
To de-promote a parameter go to <edit> level, select the parameter from the relevant list and change the choice
from <Pro> back to <ALtr>, <rEAd> or <HidE>.
3.4.2.2
Read Only Example
read
2FSH
In this example Full scale High alarm 2 will be read only. This means that its value will be
displayed in operator level but it cannot be changed.
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2408i Indicator
Engineering Manual
3.5
Calibration
The indicator is calibrated in three ways. These are:1. Factory Calibration. The controller is calibrated to very high accuracy during manufacture and the calibration
values are permanently stored within the controller. Factory calibration is not available to the user
2. Transducer Scaling. Transducer scaling allows offsets to be entered to compensate for errors or differences in
the process measurement system
3. User Calibration. This allows the instrument to be calibrated against known conditions in the actual process
without affecting the factory calibration.
See also section 3.3.5. for the full list of calibration parameters
3.5.1
User Calibration
User calibration allows you to:1.
Calibrate the controller to the your reference standards
2.
Match the calibration of the controller to that of a particular transducer or sensor input
3.
Calibrate the controller to suit the characteristics of a particular installation
The following can be calibrated:
1. Input 1. This applies to the fixed PV input on terminals V1, V+, V-. It allows you to set the displayed reading to
correspond to the electrical input range on linear mV volt or mA inputs
2. Input 2. This applies to module 3 when fitted with a DC Input module. It allows you to set the displayed
reading to correspond to the electrical input range on linear mV volt or mA inputs
3. Analogue I/O Modules configured as DC Retransmission. It allows you set up the electrical output to
correspond with the displayed value
3.5.1.1
Single Point Offset
A single offset applies to Inputs 1 & 2 and applies a fixed offset over the full display range of the controller.
To calibrate, proceed as follows:
Displayed
value
Factory calibration
1.
Connect the input of the controller to the source device
to which you wish to calibrate.
2.
Set the source to the desired calibration value.
3.
The controller will display the current measurement of
the value.
4.
If the displayed value is correct, then the controller is
correctly calibrated and no further action is necessary. If
it is incorrect, then follow the steps shown below.
Fixed offset
Input
Figure 3-2: Fixed Offset
3.5.1.2
To Apply an Offset to Input 1
Do This
This Is The Display You Should See
1. From any display press
as
many times as necessary to access
the <iP List> header menu
iP
to show <OfS.1>
2. Press
(Offset on input 1)
OFS.1
3. Press
or
required offset
3.5.1.3
to enter the
1.0
Additional Notes

An offset on Input 1 of +1.0 unit will be
applied over the full range of the input.
The same procedure is followed to apply
an offset to Input 2
Two Point Calibration
Two point calibration is only available in Configuration level and allows you to adjust both the low point (zero) and
high point (span) independently. The procedure is shown in the example in section 3.6.7.
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2408i Indicator
3.6
Engineering Manual
Transducer Calibration
This indicator supports a number of different two and four wire transducer types. Each type is explained in this
section.
3.6.1
Shunt Calibration
Shunt calibration is so called since it refers to switching a calibration resistor across one arm of the four wire
measurement bridge in a strain gauge transducer. It also requires the use of a Transducer Power Supply module
wired as shown in Figure 3-3.
RCAL = Calibration resistor
RCAL
A
A
D
C
B
B
3D 3C
3B
3A 2D 2C
2B
+
-
2A 1D 1C
Tdcr PSU 1
JF
1B
1A
HA
PV input 1
V-
V+
VI
AC AB AA LC
D
C
LB
LA
3D 3C
3B
3A 2D 2C
Calibration
resistor
Further
terminals
removed for
clarity
JF
PV input 1
V-
V+
VI
2B
+
2A 1D 1C
1B
Tdcr
PSU 1
AC AB AA LC
LB
1A
HA
LA
Relay Output 1
Relay Output 1
Wiring for Transducer with Internal Calibration Resistor
Wiring for Transducer with External Calibration Resistor
Both diagrams show connections to Input 1/main input.
If Input 2 is used in module position 3, the transducer output can be connected to terminals 3C (+) and 3D (-)
Figure 3-3: Wiring for Strain Gauge Calibration
3.6.2
To Calibrate a Strain Gauge Bridge Transducer
The strain gauge transducer is calibrated as follows:1. Remove any load from the transducer to establish a zero reference
2. Enter ‘Scale Low’ <ScL.L> and ‘Scale High’ <ScL.H> values which are normally set at 0% and 80% of the
span of the transducer
3. Start the procedure using the low point calibration parameter <pnt.L>, or a digital input wired to this
parameter
The indicator will automatically perform the following sequence for a transducer with its own integrated
calibration resistor:
1. Disconnect the shunt resistor
2. Calculate the low point calibration value by continuously averaging two lots of 50 measurements of the input
until stable readings are obtained
3. Connect the shunt resistor by closing a contact between terminals D and C.
4. Calculate the high point calibration value by averaging two lots of 50 measurements of the input
For transducers which do not contain a calibration resistor the indicator will switch in its own internal calibration
resistor.
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2408i Indicator
Engineering Manual
First - Enter The Calibration Password
Do This
This Is The Display You Should See
1.
From any display press
as
many times as necessary to
access the <CaL1> (or <2>)
List’ header
2.
Press
3.
or
to enter the
Press
calibration password. In a new
instrument the default is <3>
4.
5.
Press
Additional Notes
CAL1
to scroll to <CAL.P>
CAL.P

3
When the correct password is entered
<PASS> will flash briefly on the display
A password of <0> allows the instrument
to proceed directly to the next parameter
to show <CAL>
USEr
CAL
or
to turn
Press
calibration to <USEr>
The first parameter in the list is <tArE>
Calibration of Tare weight has already
been described in Operator Level Section
2.3
See start of this section for a description of
User and Factory calibration
Next – Calibrate the Strain Gauge Transducer
Do This
This Is The Display You Should See
to scroll to <ScL.L>
6.
Press
7.
or
to enter the
Press
scale low value (normally 0)
8.
Press
9.
or
to enter the
Press
scale high value
10. Press
to scroll to <ScL.H>
ScL.L

This sets the maximum (span) point at
which the transducer is to be calibrated.
This is typically 80% of the transducer
range.
ScL.H
80.00
on
buSY
Pnt.L
The indicator will show ‘busy’
while calibrating before returning
to <Pnt.L>
If the calibration fails the alarm
message <tdr.F> is flashed

28
This sets the minimum (zero) point at
which the transducer is to be calibrated.
This is typically 0%.
0
to show <Pnt..L>
or
to turn
11. Press
calibration to <on>
Additional Notes
The <Pnt.L> parameter may have been
wired to a digital input for activation by an
external switch
The operation is identical except that the
indication will return to the display which
was being shown prior to the activation of
the switch
Part Number HA027240
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Feb 2015
2408i Indicator
3.6.3
Engineering Manual
Load Cell Calibration
A load cell with V, mV or mA output may be connected to Input 1 or Input 2.
Indicator under Calibration
3D 3C 3B
3A 2D 2C
Reference Weight
2B
This diagram shows connections to input
1/main input
+
2A 1D 1C 1B 1A
Transducer
supply 1
JF
JE
JD
JC
JB
HF HE
JA
H
If Input 2 is used in module position 3, the
transducer output can be connected to
terminals 3C (+) and 3D (-)
HC HB HA
PV input 1
Load Cell
V-
V+
VI
AC AB AA LC
LB
LA
Figure 3-4: Load Cell Calibration
3.6.4
To Calibrate a Load Cell
The load cell is calibrated as follows:
1. Set <ScL.L> and <ScL.H> for the required ‘zero’ and ‘span’ readings on the display
2. Remove any load and start the procedure using the low point calibration parameter <Pnt.L>
3. or a digital input wired to this parameter. The indicator will calculate the low calibration point
4. Place a reference weight on the load cell and turn on the high point calibration parameter <Pnt.H>, or a
digital input wired to this parameter. The indicator will then calculate the high calibration point.
Note:If <Pnt.L’= ‘On’, <Pnt.H> cannot be turned to <on>
If <Pnt.H’= ‘On’, <Pnt.L> cannot be turned to <on>
Either must complete before the other can be set to <on>
First enter the calibration password as described in section 3.6.2.
Then:Do This
This Is The Display You Should See
Additional Notes
Set the required display ‘Span’ and ‘Zero’ parameters
to scroll to <ScL.L>
6.
Press
7.
Press
or
to enter the
scale low value (normally 0)
8.
ScL.L

This sets the minimum (zero) display
reading when the transducer has its
lowest weight
This sets the maximum (span) display
reading when the transducer has its
highest weight
0
Repeat for <ScL.H>
Set the load cell to its ‘zeroed’ condition
9.
Press
to show <Pnt..L>
10. Press
or
to turn
calibration to <on>
Pnt.L
on
buSY
The indicator will show ‘busy’ while
calibrating
If the calibration fails the alarm
message <tdr.F> is flashed
When the calibration low point is complete, place the reference load on the load cell
11. Press
to show <Pnt..H>
Pnt.H
12. Press
or
to turn
calibration to <on>
on
buSY
The indicator will show ‘busy’ while
calibrating and will flash <done>
when complete
If the calibration fails the alarm
message <tdr.F> is flashed

The <Pnt.L> and <Pnt.H> parameters
may have been wired to digital inputs for
activation by external switches
The operation is identical except that the
indication will return to the display which
was being shown prior to the activation of
the switches
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2408i Indicator
Engineering Manual
3.6.5
Comparison Calibration
Comparison calibration is most appropriate when calibrating the indicator against a second reference instrument.
Indicator under Calibration
3D 3C 3B
3A 2D 2C
2B
Reference
Measurement
Device
+
2A 1D 1C
1B 1A
This diagram shows connections to Input 1/main input
Transducer
supply 1
JF
JE
JD
JC
JB
JA
HF HE
If Input 2 is used in module position 3, the transducer
output can be connected to terminals 3C (+) and 3D (-)
HC HB HA
H
PV input 1
V-
V+
VI
AC AB AA LC
LB
LA
Reference
Transducer
Measurement
Transducer
Load
Figure 3-5: Comparison Calibration
3.6.6
To Calibrate by Comparison with an External Reference
In this case the process calibration points are not entered ahead of performing the calibration. The input may be
set to any value and, when the system is stable, a reading is taken from the reference measurement device and
entered into the indicator. The indicator stores both this new target value and the actual reading taken from its
input.
The process is repeated at a different value, with the indicator storing both the new target value and the reading
taken from its input.
First enter the calibration password as described in section 3.6.2.
Then:Do This
This Is The Display You Should See
Additional Notes
Allow the process to settle at the low calibration point
to show <Pnt..L>
6.
Press
7.
Press
or
to turn
calibration to <on>
8.
or
to enter the
Press
value read by the reference
instrument
on
Pnt.L
.0.012
Adj
The indicator will alternate between the
message ‘Adjust’ and the value shown in the
main display
If no key is pressed for 45 seconds the indicator
will return to the HOME display
This parameter can be configured to operate
from a digital input which, in turn, may be
connected to a push-button switch
The indicator will resume the alternating display
The values will only be accepted by scrolling
away from <Adj>, unless this parameter has
been activated by a digital input
Allow the process to settle at the high calibration point
9.
Repeat 2 to 4 above for
<Pnt.H>
on
Pnt.H

This parameter can be configured to
operate from a digital input which, in turn,
may be connected to a push-button switch
Note:The low calibration point cannot be higher than
the high calibration point
These inputs can, however, be scaled to values
which are inverted
The indicator is now calibrated against the reference source. When complete the indication returns to the HOME
display.
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Feb 2015
2408i Indicator
3.6.7
Engineering Manual
Manual Calibration
In some installations a single offset (section 3.5.1) over the whole range may not be satisfactory. What is required
is a method of applying independent offsets to both the lower end and higher end of the input range. An
example might be to compensate for known errors in a sensor or sensor input connections but without changing
the factory set calibration.
This feature is available in Configuration level in the 2408i indicator by configuring the ‘type of calibration’ (tYPE)
in the Input List (iP) to Manual mAn (section 4.5.2). This two point offset applies a straight line fit between the low
offset point and the high offset point as shown in the graph below. Any readings above or below the two
calibration points will be an extension of this line. For this reason it is best to calibrate with the two points as far
apart as possible.
Example:
Indicator input configured for mV.
A minimum input of 0.0mV to read 0. A maximum input of 10.0mV to read 1000.
In configuration level inP.L = 0.0, inP.H = 10.0, VAL.L = 0, VaL.H = 1000
Due to known errors in the transducer or it’s connections an output from the transducer of 0.05mV should read 0
on the indicator and an output from the transducer of 10.2mv should read 1000 on the indicator. User offsets can
be set up as follows:Factory calibration
Value
1000
User calibration
0.0
0.05
10.0
10.2
Input mV
0.0
Figure 3-6: High and Low Offsets
In FuLL access level enter the calibration password as described in section 3.6.2.
Then:Do This
6. Press
This Is The Display You Should See
to show <inP.L>
inP.L
7. Press
or
to adjust the input to the
minimum electrical input, e.g. <-0.5>
8. Press
to show <ScL.L>
ScL.L
9. Press
or
to adjust the input to the
minimum display reading, e.g. <-5>
10. Press
to show <inP.H>
-5
1000
inP.H
11. Press
or
to adjust the input to the
minimum electrical input, e.g. <120>
12. Press
0
Additional Notes
Note: These parameters are
scaling factors which default to
inP.L = 0, SCL.L = 0, inp.H =
10000, SCL.H = 10000.
If inP.L and SCL.L have the
same value and inp.H and SCL.H
have the same value, then no
offsets are produced.
This example sets inp.L and inP.H
to 0 and 1000 to correspond with
the readings required but it is
possible to use the default values
of 0 and 10000. In this case set
SCL.H to 9800. This allows offsets
to be set to a greater accuracy
particularly where decimal points
are displayed.
to show <ScL.H>
980
ScL.H
13. Press
or
to adjust the input to the
minimum display reading, e.g. <100.0>
The above example shows an indicator configured for mV but the same procedure can be used for other input
sensors including thermocouple and PRT sensors.
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Feb 2015
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2408i Indicator
Engineering Manual
3.6.8
Auto-Tare or Display Zero
The auto-tare (display zero) function is used, for example, when it is required to weigh the contents of a container
but not the container itself.
The procedure is to place the empty container on the weigh bridge and ‘zero’ the controller. Since it is likely that
following containers may have different tare weights the auto-tare feature is always available in the indicator at
Operator access level.
The effect of auto-tare is to introduce a DC bias to the measurement, as shown in Figure 3-6 below.
New Scale High
Tare
offset
Scale High
New Scaling
Tare value
Tare
offset
PV at tare point
New Scale Low
Scale Low
Original
Scaling
Tare
offset
Input Low
Input at autotare point
Input High
Figure 3-7: Effect of Auto-Tare
The procedure to initiate tare calibration was described in 2.3.
Note:- A Tare calibration will change the values of ‘Scale High’ <ScL.L> and ‘Scale Low’ <ScL.H>
The parameter <tArE.v> sets a fixed offset on the tare value. This may be used, for example, if containers of
different weights are placed on a pallet of known weight. This known weight can then be entered in <tArE.v>.
3.6.9
To Enter a Fixed Offset to the Tare Value
Do This
The Display You Should See
1. Press
as many times as
necessary to select ‘CAL1’ or ‘CAL2’
as appropriate
2. Press
to scroll to ‘CAL’
3. Press
or
4. Press
to scroll to ‘tare.v’
5. Press
value
or
to select ‘USER’
to enter the offset
Additional Notes
CAL1
CAL
USER
tare.v
10
The offset value represents the weight of
the pallet for example
If this value is to be changed on a regular basis, it may be convenient to ‘promote’ the tare.v parameter to the
Operator level. The procedure for this is described in section 3.4.
32
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
3.7
Engineering Manual
Custom Linearisation
The linearisation uses a 15 point straight line fit.
Figure 3-7 shows an example of a curve to be linearised and is used to illustrate the terminology used in the
parameter list
Notes:
Displayed value
1. The linearisation block works on rising
inputs/rising outputs or rising
inputs/falling outputs. It is not suitable
for outputs which rise and fall on the
same curve.
VAL.H
Terminated
search
2. Input Lo/Output Lo and Input Hi/Output
Hi are entered first to define the low and
high points of the curve. It is not
necessary to define all 15 intermediate
points if the accuracy is not required.
Points not defined will be ignored and a
straight line fit will apply between the
last point defined and the Input
Hi/Output Hi point.
VAL.2 to
VAL.14
Ignored data
points
VAL.L
in L
in H
in 2 ( to 14)
Electrical input
Figure 3-7: Linearisation Example
3.7.1
Example: To Linearise Input 1
Do This
This Is The Display You Should See
1. Press
as many times as necessary to
access the <CUSt1> list header menu
Press
3.
Press
or
to enter the low
electrical input value
4.
Press
5.
Press
or
to enter the low
electrical input value
6.
Repeat steps 2 to 5 for the high end and
then for all intermediate steps
3.7.2
CUSt1
to show <in L>
2.
Additional Notes
in L
Input 1 is set to +1.0 units
1.0
to show <VAL.L>
VAL.L
The display will read 2.0
corresponding to the low electrical
input (+1 unit)
2.0
Note:The values entered must be
continuously increasing or
decreasing
Compensation for Sensor Non-Linearity’s
The custom linearisation feature can also be used to compensate for errors in the sensor or measurement system,
so that discontinuities in the curve can be calibrated out. Figure 3.8 shows an example of the type of discontinuity
which can occur in the linearisation of a temperature sensor.
Output Hi
eg 1000oC
Cal Point 6
The calibration of the sensor uses the same
procedure as described above. Adjust the
output (displayed) value against the
corresponding input value to compensate for
any errors in the standard linearisation of the
sensor
Cal Point 5
Output
2( to 14)
Cal Point 4
Cal Point 3
Cal Point 2
Cal Point 1
Output Lo
eg 0oC
Input Lo
eg 0oC
Input
2( to 14)
Input Hi
eg 1000oC
Electrical input
Figure 3-8: Sensor Non-linearity’s
Part Number HA027240
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2408i Indicator
Engineering Manual
4
CONFIGURATION LEVEL
The 2408i indicator is supplied configured in accordance with the ordering code (see section 5). The
configuration of the indicator, as defined by columns 11 to 16 of the order code, can be changed on site, if
necessary, to meet the requirements of the installation. Similarly, the positions or types of plug in module can be
changed if required. This section describes the procedures to be followed.
4.1
Hardware configuration - I/O Modules
Optional plug-in modules are fitted simply by sliding them into the
relevant position as shown in Figure 4-1. The connections for these
modules are made to the upper row of connector blocks as shown in
section 1.3.
When a module is added, removed or changed the indicator will flash
hardware error ‘<HWEr> on power up. To acknowledge this it is
necessary to go into configuration level.
or
until <ConF> is displayed.
1.
Press either
2.
Press
or
to enter the configuration level password
passcode (factory default 2)
3.
or
Press either
acknowledged
again and the hardware error is
The full list of modules available is shown in the ordering code.
Figure 4-1: View of the Plug-in Modules
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Part Number HA027240
Issue 5.0
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2408i Indicator
4.2
Engineering Manual
Software configuration
Configuration level allows you to set up parameters in the indicator which defines how it will operate. Examples
are:•
The configuration of the alarms
•
The digital input functions
•
The relay output configuration
•
The configuration of the modules
•
The passwords
Parameter tables in this section give the full list of configuration parameters.
4.2.1
To Select Configuration Access Level
Do This
This Is The Display You Should See
1.
From any display press
as
many times as necessary to
access the ‘Access List’ header
2.
Press
3.
Press
or
passcode
to show <Code>
ACCs
to show <Goto>
4.
Press
5.
Press
or
<conF> level
6.
Press
7.
Press
or
to enter the
configuration level passcode
or
are pressed
If
the word <List> is
displayed for 2 secs
List
ACCS
The factory default passcode is <1>
2 secs
PASS
CodE
to enter the
Additional Notes
<PASS> will be displayed momentarily when
the correct password has been entered
In the special case that the passcodes have
been configured as <0>, it will not be
necessary to enter a passcode
2 secs
conF
Goto
to select
to show <ConF>
The configuration factory default passcode is
<2>
2 secs
PASS
ConF
‘<PASS> will be displayed momentarily when
the correct password has been entered
In the special case that the passcodes have
been configured as <0>, it will not be
necessary to enter a passcode
The indicator is now in configuration level
Part Number HA027240
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Engineering Manual
4.3
Location of Parameters – From Indicator Block Diagram
The indicator consists of a number of internal function blocks connected together. Each function block has a
number of parameters found in lists to which the user has access. The block diagram shows location of these
parameters within the indicator.
Display
Parameters
200.0
iP ConF
PLANT
INPUTS
Input 1
TCs
PRT
Pyrometer
mA. mV,
Volts
HOME List
For example
Process Variable
Alarm Setpoint
Linearised Input 1
Linearised Input 2
iP LiSt
iP LiSt
Parameters in Operator
level
iP ConF
Parameters in configuration
level
SP LiSt
SP LiSt
PLANT
OUTPUTS
Input Cal <tYPE> = <OFF>
Input
linearisation
Transducer
scaling
Li.1
3A ConF
SP1H
SP1L
3A ConF
Hi
Lo
Ftn
SEL
trAn
iP LiSt
3A Cal <tYPE> = <OFF>
Input 2
TCs
PRT
Pyrometer
mA. mV,
Volts
PV.SL
Func = rSP
SP1
SPH
SPL
Input
linearisation
Transducer
scaling
SP.PV
Li.2
SP2H
SP2L
SP2
Alarms
AL ConF
AA ConF
AL LiSt
Alarm 1
Alarm 2
Normal/
Invert
AA Relay
output
Normal/
Invert
Relay
/logic
Module
output
Relay
OR
Alarm 3
Alarm 4
Other
alarms
1a-3A ConF
Relay,
Logic
Digital Comms
cmS ConF
Digital
Comms
Digital Inputs
Logic
inputs
LA, LB,
Module 2
Logic I/P
cmS LiSt
LA ConF
RS232
RS484
RS422
Modbus/
Profibus
Retrans-mission
Lb ConF
1a-3A ConF
Figure 4-2: Indicator Block Diagram
36
OP
PV
Err
SP
Part Number HA027240
Retransmission
Issue 5.0
mA,
Volts
Feb 2015
2408i Indicator
4.4
Engineering Manual
Navigation diagram (configuration level)
The navigation diagram shows the location of configuration parameters.
A.
Press
to step across the list headings. This is a continuous list.
B.
Press
to step down the parameters within a particular list. You will eventually return to the list heading.
C.
Press
to view the value of a selected parameter. Keep pressing to decrease the value.
D.
Press
to view the value of a selected parameter. Keep pressing to increase the value.
The diagram below shows the full list of possible parameters. In practice, the parameters that appear will depend
upon the configuration of your particular indicator .
Instrument
Configuration
Sensor Input
Configuration
Alarm
Configuration
Digital input 1
Configuration
Digital input 2
Configuration
Relay output 1
Configuration
Comms
Module
C fi
i
HA
inSt
iP
AL
unit
inPt
AL 1
id
id
id
id
dEc.P
CJC
Ltch
Func
Func
Func
Func
Ac.bu
imP
bLoc
Section
4.5.4
Section
4.5.4
SEnS
baud
Section
4.5.1
inP.L
AL 2
AL 1
PrtY
inP.H
Ltch
AL 2
dELY
VAL.L
bLoc
AL 3
rES
VAL.H
AL 3
AL 4
Section
4.6.1
tYPE
Ltch
Sbr
bAnd
bLoc
SPAn
Section
4.5.2
AL 4
rmt.F
Ltch
iP1.F
bLoc
nw.AL
Sbr.t
Section
4.5.7
Return to inSt
Lb
LA
AA
Section
4.5.3
Leaving
Configuration
Passwords
Exit
PASS
Section
4.6.2
Module 3
Configuration
Module 2
Configuration
Module 1
Configuration
CAL
3A/b/
C
2A/b/
C
1A/b/
C
ACC.P
rCAL
id
id
id
id
cnF.P
PV
Func
Func
Func
Func
CAL.P
Section
4.7.1 to
4.7.4
Section
4.7.5
Calibration
PDSIO Module
Configuration
JA
VAL.L
The parameters which follow depend upon
the type of module fitted.
See Sections 4.6.3. to 4.6.9.
VAL.H
Section
4.6.2
Figure 4-3: Navigation Diagram
Part Number HA027240
Issue 5.0
Feb 2015
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2408i Indicator
Engineering Manual
4.5
Configuration Parameter Tables - All indicators
The tables in this section list the parameters available for the fixed functionality of the indicator.
4.5.1
Instrument configuration list
inSt
inst
Instrument list
Option
Meaning
Default setting
unit
To select display units
*C
Celsius
Defined by the
*F
Fahrenheit
ordering code,
*K
Kelvin
otherwise *C
nonE
None (for linear inputs)
To set the number of
decimal places in the
display
nnnn
nnn.n
nn.nn
n.nnn
None
To enable Front panel
EnAb
Button enabled
Ack/Reset button
diSa
Button disabled
dEC.P
Ac.bu
4.5.1.1
Customer
setting
Defined by the ordering
code, otherwise nnnn
One
Two
Three
EnAB
Example: To Change the Number of Decimal Places in the Display
Do This
This Is The Display You Should See
Additional Notes
Enter configuration level as described in section 4.2.1.
1.
Press
until the ‘Instrument
List’ header is shown
2.
Press
shown
until <dEc.P> is
or
to move the
Press
decimal point position
3.
4.5.1.2
inSt
2 secs

nnn.n
The display will return to <dEc.P> after
approximately 2 seconds
dEc.P
Example: To Disable the Front Panel Ack/Reset Button
Do This
This Is The Display You Should See
Additional Notes
Enter configuration level as described in section 4.2.1.
1.
Press
until the ‘Instrument
List’ header is shown
2.
Press
shown
3.
38
until <Ac.bu> is
or
Press
disabled
to select
inSt
2 secs
diSA
Ac.bu

The display will return to <Ac.bu> after
approximately 2 seconds
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
4.5.2
Engineering Manual
Sensor Input Configuration List
iP
iP
Sensor Input
Option
Meaning
Default setting
inPt
To configure input type
See also example 4.4.2.1.
NOTE:
j.tc
J thermocouple
k.tc
K thermocouple
After selecting an input
type, do not forget to
adjust the setpoint limits in
Full Access level.
L.tc
L thermocouple
Defined by the
ordering code,
otherwise ktc
r.tc
R thermocouple
b.tc
B thermocouple
n.tc
N thermocouple
t.tc
T thermocouple
S.tc
S thermocouple
PL 2
Platinell II
none
Custom downloaded input
See 15-point CuSt list
CJC
Cold junction
compensation (CJC does
not appear for Process or
RTD inputs.
For process see ‘Linear
input scaling’ below
ImP
Input impedance threshold
for sensor break alarm
rtd
100Ω Platinum resistance thermometer
mV
Linear millivolt
voLt
Linear voltage
mA
Linear milliamps
Sr V
Square root volts
Sr A
Square root milliamps
mV.C
16-point millivolt custom linearisation
V.C
16-point Voltage custom linearisation
mA.C
16-point milliamp custom linearisation
Auto
Automatic compensation
0*C
0°C external reference
45*C
45°C external reference
50*C
50°C external reference
OFF
No cold junction compensation
OFF
Sensor break alarm disabled
Auto
1.5KΩ
Hi
5KΩ
HiHi
15KΩ
Customer
setting
* If a different
custom input is
supplied, none
will be replaced
by the reference
number shown in
the ORDERING
CODE section 5
Auto
Auto
If the sensor impedance
exceeds this value, sensor
break alarm activates
Linear input scaling (-9.99 to +80.00mV). These parameters appear after <inPt> whenever <mV>, <voLt>, <mA>, <Sr
V> or <Sr A> are chosen as the input type. This allows for the low and high displayed values to be set up against the
corresponding electrical input values.
tYPE
Type of calibration (see
3.3.5.)
bAnd
0-99.99
Settling band.
0-99.99
The indicator automatically determines when the input has become stable by
continuous sampling. When the average value between two consecutive samples
is within the settling band the indicator will then allow calibration to take place. If
readings are not stable within this period the indicator will abort the calibration
Off
Shnt
Ld.C
CmP
mAn
Off
Shunt
Load Cell
Comparison
Manual
0.5
The following parameters appear for process inputs and allow the display to be calibrated to the electrical input. See also
example 4.5.2.2.
InP.L
Electrical input low
InP.H
Electrical input high
VaL.L
Displayed value low
-9999 to 99999
Defined by the SP
limits in ordering
code, else 0
VAL.H
Displayed value high
-9999 to 99999
Defined by the SP
limits in ordering
code, else 100
Part Number HA027240
-100.0 to100.0 mV
0.0 to 20.0 mA
0.0 to 10.0 Volts
Issue 5.0
Feb 2015
0.0
100.0 if mV
20.0 if mA
10.0 if volts
39
2408i Indicator
Engineering Manual
4.5.2.1
Example: To Select a Different Thermocouple Type
Do This
This Is The Display You Should See
Additional Notes
Enter configuration level as described in section 4.2.1.
1.
Press
until the ‘Input List’
header is shown
2.
Press
shown
until <inPt> is
or
Press
input type
3.
iP
2 secs
r.tc
inPt
to select the

The display will return to <inPt>
after approximately 2 seconds
Notes:
The next parameter is cold junction compensation, <CJC>. It is used to compensate for ambient temperature
changes measured at the point at which the thermocouple (or compensating) cable connects to the indicator.
Automatic, Auto, measures the temperature at the rear terminals and compensates for any ambient temperature
changes. It will only be necessary to change the <CJC> parameter if an external temperature reference source is
to be used.
Sensor break is measured by the impedance, <imP>, of the sensor circuit and an alarm is given if this is greater
than a set amount. For thermocouples set this to <Auto>. For certain types of sensor its working impedance
may be greater than the 1.5KΩ set by Auto. It will only be necessary to change <imP> if this type of sensor is to
be used.
4.5.2.2
Example: To Adjust Display Reading for a Process Type Input
This example is 4 – 20mA input to read 0 to 100 on the display
Do This
This Is The Display You Should See
Additional Notes
Enter configuration level as described in section 4.2.1.
The mA input is selected in the same way as the thermocouple input above.
1.
2.
In the input list press
<inP.L> is shown
Press
or
input eg 4mA
until
2 secs
4.0
inP.L
to set the low
Displayed value
VAL.H
3.
4.
Press
shown
until <inP.H> is
eg (10)
2 secs
20.0
or
Press
input eg 20mA
inP.H
to set the high
VAL.L
eg (0)
5.
Press
shown
until <VAL.L> is
0.0
6.
or
to set the low
Press
displayed value eg 0.0
7.
Press
shown
8.
40
2 secs
until <VAL.H> is
or
to set the low
Press
displayed value eg 100.0
VAL.L
Inp.L
Inp.H
eg (4)
eg (20)
Electrical Input
2 secs
100.0
VAL.H

The display will return to <inPt>
after approximately 2 seconds
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
4.5.3
Engineering Manual
Alarm Configuration
Alarms are used to alert an operator when the process value has exceeded a pre-set level or when some other
fault condition has occurred. They normally switch an output - usually relay - to provide an interlock on a
machine/process or audio/visual indication to an operator.
The Model 2408i has four internal ‘soft’ alarms which are configured in the <AL> list below. A soft alarm means
indication only. To make a soft alarm activate a physical output it must be ‘attached’ to that output. See: section
4.5.8. ‘Relay Output Configuration’
ALARM DEFINITIONS: The following alarm types can be configured:
Full Scale High
The Process Value is above a set high level
Full Scale Low
The Process Value is below a set low level
Deviation band
The difference between setpoint and the process value is outside a set band
Deviation high
The difference between setpoint and the process value is above a set value
Deviation low
The difference between setpoint and the process value is below a set value
Rate of change
The Process Value is changing faster than a set rate
AL
Alarm list
Option
Meaning
Default setting
AL 1
To select Alarm 1
Type
OFF
FSL
FSH
dEv
DHi
DLo
dv1
DH1
DL1
dv2
DH2
DL2
FL2
FH2
LSP
HSP
FL1
FH1
rat
raS
rt1
rS1
rt2
rS2
no
YES
Eunt
The alarm is disabled
Defined by the
Full Scale Low alarm - main process value
ordering code,
Full Scale High alarm - main process value
otherwise OFF
mAn
Latched with manual resetting
(See note 2)
no
YES
disA
EnAb
No blocking
Blocked until first good
(See note 4)
Ltch
To select alarm
latching type
bLoc
To select alarm
blocking
Sbr.t
To inhibit process
alarms in sensor
break
The above sequence is repeated for:
Customer setting
Alarm number
1
2
3
4
Deviation band alarm - main process value
Deviation High alarm - main process value
Deviation Low alarm - main process value
Deviation band alarm - input 1
Deviation High alarm - input 1
Deviation Low alarm - input 1
Deviation band alarm - input 2
Deviation High alarm - input 2
Deviation Low alarm - input 2
Full Scale Low alarm on Process Value input 2
Full Scale High alarm on Process Value input 2
Master Setpoint Low alarm
Master Setpoint High alarm
Full scale low alarm on linearised input 1
Full scale high alarm on linearised input 1
Rate of change alarm, minutes – main PV
Rate of change alarm, seconds – main PV
Rate of change alarm, minutes - input 1
Rate of change alarm, seconds - input 1
Rate of change alarm, minutes - input 2
Rate of change alarm, seconds - input 2
Non-latching
no
Latched with automatic resetting (See note 1)
Event output
(See note 3)
Disabled. Inhibits alarms
(See note 5)
Enabled. Alarms operate when in sensor break
no
EnAb
<AL 2> (alarm 2), <AL 3> (alarm 3) and <AL 4> (alarm 4)
Note 1
Automatic Resetting means that, once the alarm has been acknowledged, it will automatically clear when it is no
longer true
Note 2
Manual resetting means that the alarm must first clear before it can be reset
Note 3
Events can be used to operate an output in the same way as an alarm but will NOT flash an alarm message, and can
be used to trigger external events. For example, an event output could be used to open/close a vent at a pre-set
temperature
Note 4
Blocking Mode. After power on, the process value must first enter a good state before the alarm becomes active.
When once this process has been completed the alarm operates in its normal mode and does not become relevant
again until power to the indicator is turned off and on again. This is particularly useful for low alarms which can be
‘blocked’ while the process is warming up. It is advised that blocking alarms are not used with rate of change alarms
Note 5
Sbr.t When this parameter is set to ‘Disabled’, all alarms from the process will be inhibited should a sensor break
condition occur. When Enabled process alarms will be shown (as in previous software versions) even in a sensor
break condition.
Part Number HA027240
Issue 5.0
Feb 2015
41
2408i Indicator
Engineering Manual
Example: To Configure Alarm 2 to Operate When Input 2 Exceeds A Set Value
Do This
This Is The Display You Should See
Additional Notes
Enter configuration level as described in section 4.2.1.
1.
Press
until the ‘Alarm List’
header is shown
2.
Press
shown
until <AL 2> is
Press
shown
or
3.
AL
2 secs
until <FH2> is

FH2
AL 2
The display will return to <AL 2> after
approximately 2 seconds
<FH2> is Full Scale High alarm on
input 2
The next two parameters – Alarm Latching and Alarm Blocking may be set in the same way if they are required.
4.5.4
Alarm Inhibit
The alarm inhibit feature may be used to prevent any alarms from being indicated until a ‘noisy’ process variable
has settled. Alarm inhibit is activated by a digital input on either Digital Input 1 or 2 - see section 4.5.4. When the
digital input is turned to OFF any alarms which are active will be displayed. If a delay has been set on the alarm,
the delay period will start from the time when the input is turned OFF. Entering Alarm Inhibit resets both the
alarm delay timer and latched alarms.
The action of Alarm Inhibit is shown in the diagram below for a Full Scale High Alarm.
PV
Alarm Inhibit
input ON
Alarm Inhibit
input OFF
Alarm Inhibit Input
PV
High Alarm setpoint
threshold
PV
High Alarm State
Alarm indicated
No Alarm Inhibit
Alarm indicated
With Alarm
Inhibit
Alarm indicated
With Alarm Inhibit +
Delay
Delay time
Time
Figure 4-4: Effect of Alarm Inhibit
42
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
4.5.5
Engineering Manual
2408i Indicator With Alarm Inhibit Timer
2408i indicators fitted with software versions 3 and greater contain an alarm inhibit timer which is used to inhibit
alarms for a set period after power-up and when a digital input is closed.
4.5.5.1
Operation
In the ‘AL’ list in Operator Level there are two parameters associated with the inhibit function see section 3.3.2.
These are the alarm inhibit status’ In.AL’ and the inhibit time ‘InH.t’. To adjust the alarm inhibit time:Do This
This Is The Display You Should See
Additional Notes
2 secs
1. In Operator Level, press
as
many times as necessary to select
‘AL’
2. Press
to read ‘InAL’
3. Press
‘OFF’
or
4. Press
to read ‘InH.t’
LiSt
AL
2 secs
to select ‘On’ or
Press
or
to show ‘List’ if required.
The display will revert to ‘AL’ after 2 seconds
OFF
This sets the Alarm Inhibit status: On/OFF.
The display will revert to ‘In.AL’ after 2
seconds
10.0
InH.t
This sets the Alarm Inhibit Time 0 to 999.9
seconds. The display will revert to ‘InH.t’
after 2 seconds
In.AL
2 secs
5. Press
or
to select the
Alarm Inhibit Time
On power up alarms will be inhibited for the set time. When the inhibit time is set to OFF, the timed inhibit is
disabled.
4.5.5.2
Configuration of Digital Inputs for Alarm Inhibit
Two digital input functions can be configured for the alarm inhibit.
Permanent alarm inhibit
The permanent inhibit function ‘in.AL’ is level triggered. It permanently inhibits all alarms when closed and
enable all alarms when open.
Do This
This Is The Display You Should See
1. In Configuration Level, press
as
many times as necessary to select
‘LA’ or ‘Lb’ – the digital inputs. See
also section 4.5.6.
2. Press
to read ‘Func’
3. Press
or
2 secs
Additional Notes
Digital input configuration
ConF
LA/Lb
2 secs
in.AL
Func
to select ‘in.AL’
Level triggered alarm inhibit
Please note: when using this function ensure
that the inhibit timer is set to OFF.
Timed alarm inhibit
The timed inhibit function ‘tm.AL’ is edge triggered. It will start the inhibit timer when closed and do nothing
when opened. Alarms will be inhibited during the timing period at the end of which they will be enabled again.
From stage 1 above:Do This
This Is The Display You Should See
4. Press
to read ‘Func’
5. Press
or
2 secs
to select ‘in.AL’
Part Number HA027240
Issue 5.0
Additional Notes
Timed alarm inhibit
tm.AL
Func
Feb 2015
43
2408i Indicator
Engineering Manual
4.5.6
Digital inputs 1 and 2 Configuration
LA
or
Lb
LA
Digital input 1
Lb
Digital input 2
id
Identity of input
Func
Function
Option
Meaning
Default setting
Customer
setting
LoG.i
Logic input
LoG.i
Read only
nonE
Function not configured
none
rmt
Remote setpoint select
Ac.AL
Alarm acknowledge
Accs
Select full access level
Loc.b
Keylock (disables all front panel
buttons except the ACK/RESET
button)
up
Simulate pressing of the
button
dwn
Simulate pressing of the
button
ScrL
Simulate pressing of the
button
PAGE
Simulate pressing of the
button
PV.SL
Process value select.
Closed = input 1
4.5.6.1
Open = input 2
tar.1
Initiate automatic tare calibration of
input 1
tar.2
Initiate automatic tare calibration of
input 2
PtL.1
Start the calibration at point 1,
normally the low point
PtL.2
Start the calibration at point 2,
normally the low point
PtH.1
Start the calibration at point 1,
normally the high point
Pth.2
Start the calibration at point 2,
normally the high point
in.AL
Alarm inhibit (often used in
conjunction with transducer
calibration to prevent alarms during
the calibration process)
P.HLd
Peak hold
HLd1
Sample and Hold on PV input 1
HLd2
Sample and Hold on PV input 2
UCAL
Enables calibration access for CAL1
and CAL2 lists
Example: To Configure Digital Input ‘A’ for Tare Calibration
Do This
This Is The Display You Should See
Additional Notes
Enter configuration level as described in section 4.2.1.
1.
Press
until the <LA> List’
header is shown
2.
Press
shown
3.
until the <Func> is
or
Press
is shown
until <tAr.1>
LA
2 secs
tAr.1
Func
The display will return to Func after
approximately 2 seconds
When a connection is made between rear
terminals LC and LA a tare calibration is
initiated.
The same procedure applies to any other option shown in the Digital Inputs table and also to the second digital
input which uses list <Lb>.
44
Part Number HA027240
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Feb 2015
2408i Indicator
4.5.7
Engineering Manual
Peak Hold and Sample and Hold
Peak Hold logs the maximum and minimum values that the indicator reads during a particular process. The peak
hold value can be displayed as the main front or back display parameter, as described in section 2.1.2.
Sample and Hold logs the reading at the moment that the digital input becomes true.
Both functions are initiated by turning digital input 1 or digital input 2 to ON. They are edge triggered, so to reset
and re-start, the input must be turned OFF and ON again, as detailed in Figure 4.5 below.
The values may be read in two ways:1. From Information List <inFo> as:LoG.L
Minimum process variable
LoG.H
Maximum process variable
LoG.A
Average process variable
These values are reset when the parameter <rES.L> in the <inFo> list is turned to <YES>, or the indicator power
is cycled.
2. Maximum and minimum values can be promoted to the main front or back display as <PV.Hi> or <PV.Lo>,
see section 2.1.2. They are reset when the power to the controller is cycled or by setting the values of
<LoG.L> and <LoG.H> to zero in the <inFo> list.
Peak Hold
PV
Maximum PV
<LoG.H>
Average PV
<LoG.A>
PV
Minimum PV
<LoG.L>
Sample and Hold
Peak Hold does
not read this
point since the
digital input is
not set
ON
Digital input
LA or LB
OFF
Set
Restart
Time
Figure 4-5: Action of Sample and Hold and Peak Hold
Part Number HA027240
Issue 5.0
Feb 2015
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2408i Indicator
Engineering Manual
4.5.8
Relay Output 1 Configuration
The controller can be supplied so that Relay 1 will operate when a particular alarm occurs. This will be defined in
the order code, see section 5.
This list defines which of the internal ‘soft’ alarms are attached to relay output 1. It is possible to attach more than
one alarm to operate this relay. The procedure is described below:-
AA
AA
Relay output 1
Option
Meaning
Default
setting
id
Identity of output
rELY
Relay
rELY
Func
Function of output
Sense of the output.
None Output disabled
Digital alarm output. Output enabled
Normal (relay energised in alarm)
Inverted (relay de-energised in alarm)
diG
SenS
none
diG
nor
inv
To Attach Alarms to the Relay Output.
Customer
setting
Read only
inv
Any combination of the following alarms can be attached to relay output 1.
Press
to select a particular alarm.
Press
or
to select YES if you want it to activate the relay. Select no to disconnect a given alarm.
These parameters only appear if Func = diG
1---*
Alarm 1
YES / no
2---*
Alarm 2
YES / no
3---*
Alarm 3
YES / no
4---*
Alarm 4
YES / no
Sbr
Sensor break alarm
YES / no
Span
YES / no
iP1.F
Span The Process
value exceeds the
display limits
Remote failure. Either
PDS remote setpoint
input, OR 2nd analogue
input open circuit
Input 1 fail
nw.AL
New alarm
rmt.F
1.
46
Attaching Alarms to the relay
nor
OR
Relay
output 1
SEnS
dIG
YES
no
no
no
no
inv
no
YES / no
no
YES / no
no
YES / no
no
The three dashes correspond to the alarm type set in the <AL> list. If the alarm is disabled, <AL 1> or <AL
2> or <AL 3> or <AL 4> will be shown.
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
4.5.8.1
Engineering Manual
Example 1: To Attach Alarm 1 to Relay Output AA
Indicator supply
It is recommended that an external device is connected
so that an alarm condition is indicated when the relay is
de-energised. In this way if the indicator is removed or N/O
its power is removed an alarm is indicated.
AA
To achieve this set relay sense to inverted operation.
AB
Alarm indication supply
N/C
Alarm ON
Relay
Alarm OFF
Figure 4-6: Example External Alarm Wiring
Do This
This Is The Display You Should See
Additional Notes
Enter configuration level as described in section 4.2.1. and configure Alarm 1 to the required type – see example
4.4.3.1.
1.
Press
until the <AA> List
header is shown
2.
Press
shown
until the <Func> is
3.
Press
<diG>
or
4.
Press
shown
until the <SEnS> is
5.
Press
<inv>
or
6.
Press
shown
until the <1---> is
7.
Press
or
4.5.8.2
AA
2 secs
diG
Func
to select
The display will return to <Func> after
approximately 2 seconds
2 secs
SEnS
to select
2 secs
inv
YES
1---
to select <YES>
When alarm 1 is active the AA relay
connected to terminals AA and AB will
operate
Example 2: To Operate Relay 1 of a Dual Relay Output Module Fitted in Slot 2 when Both
Alarms 2 and 3 are Active
The wiring should be as shown in Section 1.3 using rear terminals 2A and 2B
Do This
This Is The Display You Should See
Additional Notes
Enter configuration level as described in section 4.2.1. and configure Alarms 2 and 3 to the required types – see example
4.4.3.1.
1.
Press
until the <2A> List’
header is shown
2.
Repeat steps 3 to 5 above
3.
Press
shown
until the <2---> is
Press
or
4.
to select <Yes>
5.
Press
shown
until the <3---> is
6.
Press
or
to select <Yes>
2A
2 secs
2---
2 secs
3---
YES

The display will return to <2---> after
approximately 2 seconds
The display will return to <inPt> after
approximately 2 seconds
YES
Relay 1 of module 2 will operate when either
Alarm 2 or Alarm 3 is active
This procedure can be repeated for all alarms
which require to operate an output relay.
Notes:
Logic module outputs can also be attached to
alarms
Do not forget to say <no> to any alarm which
may already be attached to an output if it is not
required.
Part Number HA027240
Issue 5.0
Feb 2015
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2408i Indicator
Engineering Manual
4.6
Configuration Parameter Tables – plug in modules
4.6.1
Communications Module
The 2408i indicator can be fitted with the following digital communications modules:Protocol
ModBus
EI-Bisynch
Module Fitted
Order Code
2-wire RS485
2YM
4-wire RS422
2FM
RS232
2AM
2-wire RS485
2YE
4-wire RS422
2FE
RS232
2AE
DeviceNet
4.6.2
2DN
Communications Parameters
HA
HA
Communications Module
configuration
Option
Meaning
Default
setting
Customer
setting
id
Identity of module
cms
Communications
cms
Read only
Func
Function (selects the
comms.
protocol)
mod
Modbus protocol
EI.bi
EI-Bisynch protocol
dnEt
Devicenet - if the Devicenet
module is fitted
ProF
Profibus - if the Profibus module is
fitted
bAud
Selects the baud rate
1200, 2400, 4800, 9600, 19.20 (19,200)
dELY
Response delay: required
by some communications
adapters
no
No delay
YES
10mS delay
Prty
Selects the parity
(Modbus only)
res
4.6.3
nonE
No parity
Even
Even parity
9600
no
nonE
Odd
Odd parity
Selects the resolution
FuLL
Full resolution
(Modbus and Profibus only)
Int
Integer resolution
FuLL
PDS input Module
JA
JA
Communications Module
configuration
Option
Meaning
Default
setting
Customer
setting
id
Identity of module
Pds.i
PDS input
Pds.i
Read only
Func
Function
nonE
No function configured
none
Sp.iP
Setpoint input (to accept an input
signal from a master source such as
a controller with pds output)
VAL.L
Setpoint low value
-9999 to
99999
0
VAL.H
Setpoint high value
-9999 to
99999
0
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Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
4.6.3.1
Engineering Manual
Example: To configure Function, Baud Rate, Resolution and Node Address:-
Do This
This Is The Display You Should See
1. Press
as many times as
necessary to select ‘HA’.
2. Press
HA
ConF
to read ‘id’
id
cms
3. Press
to read ‘Func’
Func
dnEt
4. Press
to read ‘Baud’
5. Press
rate
or
6. Press
to read ‘rES
7. ’ Press
or ‘Int’
to select the baud
bAud
500
or
rES
FuLL
to select ‘FuLL’
Additional Notes
This is the position in which a digital
communications module is fitted
If the module is present
‘id’ = Cms (digital communications) or ‘none’ if
the module is not present
If Modbus or EI Bisync module is fitted, ‘Func’ =
‘mod’ or ‘EI.bi’
If Profibus module is fitted, ‘Func’ = ‘Prof’
If the DeviceNet module is fitted, ‘Func’ =
‘dnEt’
These ware be read only
For Modbus or EI Bisync baud rate can be set
to 1200, 2400, 4800, 9600, or 19,200
For Profibus baud rate is set automatically to a
maximum of 1M5
For Devicenet baud rate can be set to 125(K),
250(K) or 500(K)
‘FuLL’ the decimal point position is implied,
eg 100.1 is transmitted as 1001.
‘Int’ rounded to the nearest the integer value
Node Address is set up in Full Access level
Exit configuration level as described in the Installation and Operation Handbook, Chapter 6.
Then:Do This
This Is The Display You Should See
cmS
1. Press
as many times as
necessary to select ‘cms’.
2. Press
Additional Notes
LiSt
Addr
to read ‘Addr’
Valid addresses are from 0 - 63
5
or
to select the
3. Press
address for the instrument
4. Press
nw.St
to read ‘nw.St’
Part Number HA027240
run
Issue 5.0
Feb 2015
Indicates the network status:‘run’ = network connected and operational
‘rdy’ = network connected but not operational
OFF.L’ = network not connected
49
2408i Indicator
Engineering Manual
4.6.4
DeviceNet Communications
The following is applicable to DeviceNet only.
4.6.4.1
The EDS File
The EDS (Electronic Data Sheet) file for the 2408i is named 2400.EDS and is available from your supplier, or
electronically by going to Web site (www.eurotherm.com). The EDS file is designed to automate the DeviceNet
network configuration process by precisely defining vendor-specific and required device parameter information.
Following a data sheet metaphor, the EDS file describes a device’s configurable parameters, including its legal
and default values and the public interfaces to those parameters. Software configuration tools utilize the EDS files
to configure a DeviceNet network.
4.6.4.2
ODVA Compliance
This interface has been tested to comply with the full requirements of the ODVA (Open DeviceNet Vendors
Association) conformity tests.
4.6.4.3
DeviceNet Wiring Connections
Terminal
Reference
CAN Label
Color Chip
Description
HA
V+
Red
DeviceNet network power positive terminal. Connect the red wire of
the DeviceNet cable here. If the DeviceNet network does not supply
the power, connect to the positive terminal of an external 11-25 Vdc
power supply.
HB
CAN_H
White
DeviceNet CAN_H data bus terminal. Connect the white wire of the
DeviceNet cable here.
HC
SHIELD
None
Shield/Drain wire connection. Connect the DeviceNet cable shield
here. To prevent ground loops, ground the DeviceNet network in only
one location.
HD
CAN_L
Blue
DeviceNet CAN_L data bus terminal. Connect the blue wire of the
DeviceNet cable here.
HE
V-
Black
DeviceNet network power negative terminal. Connect the black wire
of the DeviceNet cable here. If the DeviceNet network does not
supply the power, connect to the negative terminal of an external 1125 Vdc power supply.
HF
!



Connect to instrument earth
Note: Power taps are recommended to connect the DC power supply to the DeviceNet trunk line. Power
taps include:
A Schottky Diode to connect the power supply V+ and allows for multiple power supplies to be connected.
2 fuses or circuit breakers to protect the bus from excessive current which could damage the cable and
connectors.
The earth connection, HF, to be connected to the main supply earth terminal.
V+ 5
CAN-H
Drain
CAN-L
V- 1
Red
Wht
HB
HC
Blu
Blk
121
terminating
resistor
required if not
fitted internally
Typical Interface
Card (MASTER)
Network Supply
24Vdc ( +1%)
250mV p-p
Ripple
HA
V+
CAN-H
Drain
L
N
E
HD CAN-L
HE VHF
(SLAVE)
Address 11
Controller 1
HA
HB
V+
Controller 0
HC
V+
L
N
E
121
HD
V-
HE
VHF (SLAVE)
Fit 121Ω
terminating resistor
to last instrument in
the chain
Address N+1
Daisy chain to further
instruments
Figure 4-7: Typical DeviceNet Wiring Diagram
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Part Number HA027240
Issue 5.0
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2408i Indicator
4.6.5
Engineering Manual
Module 1, 2 and 3 Configuration Lists
The identity of a module fitted in slots 1, 2 or 3 is shown by the first parameter in the module lists.
•
If the module is a single output only channel <A> is shown
•
If the module is a dual output channel <a> and channel <C> are shown
•
If the module is a triple output Channel <A>, channel <b> and channel <C> are shown
Module configuration lists are summarised below:-
1A
to
3C
LIST HEADINGS:
MODULE 1
MODULE 2
MODULE 3
1a, 1b, 1C
2a, 2b, 2C
3a, 3b, 3C
(Note: The list heading corresponds to the
terminal number to which the input/output is
wired)
Note: Channel ‘b’ only appears if a dual or triple channel module is fitted. Channel ‘C’ only appears if a triple channel
module is fitted
Customer setting in each channel number
Module
Parameters
id
Identity
of
module
Option
Meaning
1A
nonE
Module not fitted
rELY
Relay output
LoG
Logic output
LoG.i
Logic or contact closure input
dC.iP
2nd analogue input module
(Module 3 only)
dc.re
DC retransmission
TPSU
Transmitter power supply
SG.SU
Strain gauge power supply
4.6.6
Changeover Relay or Dual Relay Output Module
4.6.7
Triple Logic Output Module
1B
1C
2A
2B
2C
3A
3b
3C
3b
3C
The parameter lists are the same for each of these modules as listed below:Identity of
module
reLY
Relay
LoG
Logic
Func
Function of
output
nonE
diG
Module operation
turned off
SenS
Sense of the
output
nor
inv
id
Customer settings in each channel
1A
1B
1C
2A
2B
2C
3A
Digital
Output energises when
TRUE
Output de-energises
when TRUE (default for
alarms)
If Func = nonE no further parameters are shown
1---
Alarm 1
YES / no
2---
Alarm 2
YES / no
3---
Alarm 3
YES / no
Alarms are
4---
Alarm 4
YES / no
attached to the
Sbr
Sensor break
alarm
YES / no
same
output in the
Span
Span
YES / no
way as relay
rmt.F
Remote failure
YES / no
output 1
iP1.F
Input 1 fail
YES / no
nw.AL
New alarm
YES / no
The changeover relay output module has a single output so the above parameters are shown under list <-A> only
The triple logic module has three outputs so the above parameters are shown under lists –<-A>, <-b>, and –<-C>
The dual relay module has two outputs so the above parameters are shown under lists –<-A> and <-C>
Part Number HA027240
Issue 5.0
Feb 2015
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2408i Indicator
Engineering Manual
4.6.8
Triple Logic Input or Triple Contact Closure Input Module
The triple logic input module allows further digital inputs in addition to those in the basic instrument. The list of
parameters is the same as the fixed digital inputs 1 & 2, section 4.5.6. as follows:Customer settings in each channel
1A
id
Identity of
module
LoG.i
Logic input
Func
Function
nonE
Function not configured
rmt
Remote setpoint select
Ac.AL
Alarm acknowledge
Accs
Select full access level
Loc.b
Keylock (disables all front
panel buttons except the
ACK/RESET button)
up
Simulate pressing of the
button
dwn
Simulate pressing of the
button
ScrL
Simulate pressing of the
PAGE
Simulate pressing of the
1B
1C
2A
2B
2C
3A
3b
3C
Read only
button
button
PV.SL
Process value select.
Closed = input 1
Open = input 2
tar.1
Initiate automatic tare
calibration of input 1
tar.2
Initiate automatic tare
calibration of input 2
PtL.1
Start the calibration at point
1, normally the low point
PtL.2
Start the calibration at point
2, normally the low point
PtH.1
Start the calibration at point
1, normally the high point
Pth.2
Start the calibration at point
2, normally the high point
in.AL
Alarm inhibit
P.HLd
Peak hold
HLd1
Sample and Hold on PV
input 1
HLd2
Sample and Hold on PV
input 2
UCAL
Enables calibration access
for CAL1 and CAL2 lists
The triple logic or triple contact closure module has three inputs so the above parameters are shown under lists
<-A>, <-b>, and <-C>
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Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
4.6.9
Engineering Manual
DC input Module
The DC Input module can only be fitted in slot 3. The following parameters appear:Module Parameters
id
Identity of
module
Func
Function
Option
Meaning
Customer settings 3B
dC.iP
DC input
Read only
nonE
No function. Input used for monitoring and alarm only
rSP
Remote setpoint input. When selected this becomes the setpoint for deviation alarms.
In <FuLL> access level, set Remote SP Enable, <L-r> = <rmt> (Remote SP selected)
Process Value = the highest of Input 1 and input 2 is displayed in normal operation. In
normal operation the display cannot be switched between ‘front’ and ‘back’ views. The
reading shows the highest or lowest value only.
Process Value = the lowest of Input 1 and input 2 is displayed in normal operation. In
normal operation the display cannot be switched between ‘front’ and ‘back’ views. The
reading shows the highest or lowest value only.
Hi
Lo
Ftn
Derived value. Process Value = (<F.1> x Input 1) + (<F.2> x input 2), where <F.1> and
<F.2> are scalars found in the <ip> list in Full Access level. Refer to section 3.3.4. for an
SEL
Select input 1 or input 2 via comms, a digital input, or in the Operator <ip> list. If a
digital input is configured use the parameter <PV.SL>. If the input is selected through
the Operator list in Full Access use the parameter <PV.iP>
tran
Transition region between <iP.1> and <iP.2>, set by <Lo.IP> and <Hi.IP> in
Operator Level. See example 4.6.7.1.
example of differential measurement.
If <Func> = <nonE no further parameters are shown.
When <Func> ≠ <nonE>, input 2 parameters are shown in the Input List in Full access level
The parameters that follow are the same as those in the <iP> configuration list plus
option
<HiLn> - the high impedance input
Refer to <iP> list section 4.5.2. plus the following parameter
inPt
Customer settings
0 to 2volt high impedance input
HiIn
Refer to <iP> list
CJC
Imp
InP.L
ImP.H
VAL.L
VAL.H
tYPe
bAnd
Type of
calibration
Settling
band.
Off
off
Shnt
Shunt
Ld.C
Load Cell
CmP
Comparison
man
Manual
099.99
(Default
0.5)
The indicator automatically determines when the input has become
stable by continuous sampling. When the average value between
two consecutive samples is within the settling band the indicator will
then allow calibration to take place. If readings are not stable within
this period the indicator will abort the calibration
The DC input module has a single input so the above parameters are shown under list <3A> only
4.6.9.1
Example: Input 1 and Input 2 are Configured for Transition
An example of the use for this could be the measurement of temperature over a wide range. The lower
temperatures may be measured by a base metal thermocouple connected to Input 1 and higher temperatures
may be measured by a pyrometer or precious metal thermocouple connected to input 2. The reason for such a
combination is to provide the most accurate readings over the full temperature range where the thermocouple
cannot be used at high temperatures and the pyrometer is too insensitive at low temperatures to provide an
accurate reading.
The thermocouple may be withdrawn, to prevent damage to it, using a high alarm set around the upper limit of
the thermocouple.
PV = Input 2 ↑
Event set at the upper limit of the thermocouple
on input 1 to signal withdrawal.
Hi.iP
During the transition stage the display
reads a combination of Input 1 and input 2.
If <Hi.iP> = <Lo.iP> the displayed
reading will switch from input 1 to input 2
Lo..iP
PV = Input 1 ↓
Figure 4-8: Input 1/Input 2 Transition
Part Number HA027240
Issue 5.0
Feb 2015
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2408i Indicator
Engineering Manual
Do This
This Is The Display You Should See
Additional Notes
A. Configure the DC Input Module fitted in slot 3 for transition function
1.
Press
until the <3A> List
header is shown
2.
Press
3.
Press
until
or
<Func> is shown
3A
2 secs
trAn
to select <trAn>

The display will return to <Func>
after approximately 2 seconds
Func
B. Configure an alarm as a full scale high event
1.
Press
until the ‘Alarm List’
header is shown
2.
Press
to select alarm 1, 2, 3, or
4 as appropriate
3.
Press
or
4.
Press
to select <Ltch>
5.
Press
or
AL

2 secs
FSH
to select <FSH>
This configures alarm 1 for full scale
high
AL 1
2 secs
Evnt
to select <Evnt>
LtcH

This configures alarm 1 for an event so
that an alarm message is not
displayed as the PV exceeds the alarm
setpoint.
C. Attach the alarm to a relay output as described in examples 4.4.5.1 or 4.4.5.2.
D. Exit configuration level and enter Full access level to set the transition values and full scale high alarm (event) setpoint
1.
Press
until the ‘Input List’
header is shown
2.
Press
shown
3.
or
to set a level at
Press
which the sensor on input 1 is to be
phased out
4.
Press
shown
until the <Lo.iP> is
until the <Hi.iP> is
5.
or
to set a level at
Press
which the sensor on input 2 is to be
phased in
6.
Press
iP
2 secs
1000
Lo.iP
If <Lo.iP> is set to the same value as
2 secs
 <Hi.iP> the displayed reading will
1100
Hi.iP
jump from Input 1 to input 2 at this
value.
<F.1> and <F.2> are constants to achieve a
until the <F1> is shown
derived PV
2 secs
7.
Press
or
to set a multiplying
factor on input 1 if necessary
8.
Repeat for <F2>
9.
Press
until the ‘Alarm List’
header is shown
10. Press
until the <AL1> is shown
11. Press
or
to set the level at
which the base metal thermocouple
is to be removed
54
0.5
F1
where PV = <F.1> x input 1 + <F.2> x input
2
As the displayed reading, in normal
operation, moves between Input 1 and input
2 it will do so in a controlled manner. Some
experiment may be necessary with the four
parameters to achieve ideal settings.
AL
2 secs
1110
AL1
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
Engineering Manual
4.6.10 DC Retransmission Module
The following parameters appear.
Module Parameters
id
Identity of module
Func
Function
Option
Meaning
dc.rE
DC retransmission
nonE
None configured
PV
Process value retransmission
wSP
Setpoint retransmission
Err
Error from setpoint retrans.
IP.1
Input 1 retransmission
Ip.2
Input 2 retransmission
Customer settings
1A
2A
3A
If Func = nonE no further parameters are shown
VAL.L
Retransmission value low
VAL.H
Retransmission value High
UniT
Electrical output units
voLt = Volts, mA = milliamps
Out.L
Minimum electrical output
Out.H
Maximum electrical output
The DC retransmission module has a single output so the above parameters are shown under list -A only
4.6.10.1 Example: To Scale the DC Retransmission Output
The retransmission output can be scaled so that the output value corresponds to the range of the signal to be
transmitted.
Figure 4.5 shows an example where the retransmitted signal is <PV> or <wSP > and an electrical output of 4-20mA
represents a displayed value of 20.0 to 200.0 units.
Retransmission Value
VAL.H
eg 200.0
VAL.L
eg 20.0
Out.L
eg 4 mA
Out.H
eg 20mA
Electrical
Output
Figure 4-9: Scaling a Retransmission Output
4.6.11 Strain Gauge Transducer Supply
The following parameters appear:Module Parameters
Option
Meaning
Customer settings
1A
id
Identity of module
SG.SU
Strain Gauge supply
Func
Function
nonE
iP 1
ip 2
None
5
10
5 volt bridge supply
Ext
Int
External shunt resistor used
BrG.V
SHnt
Bridge voltage
Calibration shunt
resistor
2A
3A
Bridge supply for input 1
Bridge supply for input 2
10 volt bridge supply
Internal shunt resistor used
The strain gauge transducer module has a single input so the above parameters are shown under list -A only
4.6.12 Transmitter Power Supply
The following parameters appear:Module Parameters
Option
Meaning
id
Identity of module
tP.SU
Transmitter power supply
Func
Function
nonE
Fixed 24Vdc 20mA supply
Part Number HA027240
Issue 5.0
Feb 2015
55
2408i Indicator
Engineering Manual
4.7
Indicator calibration
This section explains how to calibrate PV inputs 1 and 2, and retransmission outputs. It should not be confused with
User Calibration described in section 3.6 which allows the user to add offsets to compensate for external
measurement inaccuracies. Calibration of the indicator should not normally be necessary and must only be carried
out using calibrated reference sources. It is always possible to revert to factory calibration settings if necessary.
4.7.1
To Calibrate Input 1 or 2
•
A mV calibration should be carried out before thermocouple
and RTD calibrations.
•
Connect a mV, volt source to the input which you wish to
calibrate.
•
mV Source
2400i Indicator
Copper cable
Input 1 or 2
terminals
If the input is RTD connect a resistance box.
Figure 4-10: mV Input Calibration
4.7.1.1
To Calibrate mV or Volt Inputs:-
Do This
This Is The Display You Should See
1. From any display press
as
many times as necessary to
access the <CaL> List’ header
Additional Notes
CAL
Set the mV source to 0.000mV
to show <rcAL>
2.
Press
3.
Press
or
to select input 1
or 2 <PV.1> or <PV.2>
4.
Press
5.
Press
or
<mv.L>
6.
Press
to show <GO>
Press
or
7.
PV.1
rcAL
to show <PV>
PV
to select
mv.L
to select
For 0 - 10V input range and high
impedance input range,
set the volt source to 0.000V

This allows you to choose the parameter
to be calibrated
GO
donE
.YES
GO
<YES>

buSY
Set the mV source to 10.000mV
8.
Repeat the above steps for
<mV.H>
4.7.1.2
mv.H
PV

When the indicator is
calibrating the message
<buSY> is shown. When
complete the message
<donE> is flashed briefly
and the display returns to
<GO>. The low point
calibration is now complete
For 0 - 10V input range, set the volt source
to 10.000V
For RTD input range, set the resistance
box to 400.00Ω
For high impedance input range, set volt
source to 1.000V
To Calibrate CJC
In addition, for thermocouple inputs, calibrate Cold Junction Compensation (CJC), as follows:Do This
This Is The Display You Should See
Additional Notes
1.
2.
3.
4.
Replace the copper cable from the mV source with the appropriate compensating cable
Configure the indicator for a thermocouple type. A base metal thermocouple such as type K is recommended
Set the mV source to the same thermocouple compensation
Set the mV source to 0.000mV
5.
From the <PV> list press
or
as many times as necessary
to access <CJC>
6.
Press
to show <GO>
7.
Press
<YES>
or
56
to select
CJC
PV
.YES
GO
GO
donE
buSY
Part Number HA027240
When the indicator is
calibrating the message
<buSY> is shown. When
complete the message
<donE> is flashed briefly and
the display returns to <GO>.
The CJC calibration is now
complete.
Issue 5.0
Feb 2015
2408i Indicator
4.7.2
Engineering Manual
To Calibrate Retransmission Output
Connect the retransmission output to a multi-meter set to volts or mV as appropriate.
Calibrated
voltmeter or
ammeter
2400i Indicator
Module output
terminals
Figure 4-11: Retransmission output calibration
Do This
1.
This Is The Display You Should See
From the <rcAL> list press
1A.Hi
rcAL
or
as many times as
necessary to select the module
to be calibrated, e.g. <1A.Hi>
to show <CAL.H>
2.
Press
3.
Press
or
to adjust the
required output read on the
meter
4.
Press
.605
CAL.H
In this example module 1 will be calibrated.
The high output is calibrated first

to select the
<rcAL> list
5.
Press
or
as many
times as necessary to select the
module to be calibrated, e.g.
<1A.Lo>
6.
Press
7.
Press
or
to adjust the
required output read on the
meter
4.7.3
Additional Notes
The low output is calibrated next
1A.Lo
rcAL
to show <CAL.L>
.-960
CAL.L
The reading on the indicator can be
adjusted between –999 and +999. This
is an arbitrary value which acts as a trim
on the output

The reading on the indicator can be
adjusted between –999 and +999. This
is an arbitrary value which acts as a trim
on the output
To Restore Factory Calibration
Factory calibration of PV input and PV input 2 can be restored as follows:Do This
1.
This Is The Display You Should See
From the <PV> list press
as many times as
or
necessary to select <FACt>
Part Number HA027240
Issue 5.0
FACT
PV
Feb 2015
Additional Notes
The factory set calibration values are restored
57
2408i Indicator
Engineering Manual
4.7.4
Calibration Parameters
CAL
CAL
Basic Indicator Calibration
rCAL
Selected re-calibration
parameter
Selected parameter
nonE
PV.1
PV.2
1A.Hi
1A.Lo
2A.Hi
2A.Lo
3A.Hi
3A.Lo
Idle state - no calibration performed
Main process value input selected
Second analogue input selected (this will always be in module
position 3)
Module 1 DC retransmission high output (if installed)
Module 1 DC retransmission low output (if installed)
Module 2 DC retransmission high output (if installed)
Module 2 DC retransmission low output (if installed)
Module 3 DC retransmission high output (if installed)
Module 3 DC retransmission low output (if installed)
If rCAL = PV1 or PV2 the following parameters
appear:
Calibration point
PV
FACt
Idle
mV low calibration point selected
mV high calibration point selected
0 Volt calibration point selected
10 Volt calibration point selected
Cold junction calibration
Resistance input calibration
High impedance input. 0 Volt calibration
point selected
High impedance input. 1.0 Volt
calibration point selected
Restore factory calibration selected
no
YES
busy
done
FaiL
Waiting to calibrate PV point
Start calibration
Busy calibrating
Calibration complete
Calibration failed
PV or PV.2 calibration point
IdLE
mv.L
mv.H
V 0
V 10
CJC
rtd
HI 0
HI 1.0
GO
Start calibration
Calibration value
0.000 mV
50.000 mV
0.000V
10.000V
See below
400.00Ω
0.000V
1.000V
If rCAL = 1AHi to 3aLo (DC output module calibration) the following parameters appear:
cAL.L
DC output calibration low point
0
0 = Factory cal. Trim value to give output = + 1V or +2mA
cAL.H
DC output calibration high point
0
100 = Factory cal. Trim value to give output = + 9V or +18mA
4.7.5
Password Configuration
PASS
Passwords
Range
Notes
When passwords are changed please make a
note of the new numbers
Default
setting
ACC.P
Full and Edit level password
09999
Having once entered the correct password,
operator, full or edit level can be selected at
will. To return to operator level and lock the
indicator in this level, either switch the
indicator off and on again or enter an invalid
password as described in section 4.2.1.
1
cnF.P
Configuration level
password
09999
Configuration level can only be entered from
the above level. You must exit this level to
return to operator level by following the exit
procedure in section 4.7.6.
2
CAL.P
User calibration password
09999
User calibration level (described in Section
3.5.1.) can be entered from operator level.
To return to normal operation:
Enter an incorrect password
Switch power off and on again
3
4.7.6
To Leave Configuration Level
Do This
1.
2.
58
Customer
setting
This Is The Display You Should See
Press
display
to reach the <exit>
Press
or
to select <YES>
Exit
YES
Additional Notes

After 2 secs the display will blank then
return to the HOME display in Operator
level
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
Engineering Manual
5 Ordering Code
Model
number
2408i
AL
AP
G
N
RD
VH
VL
Function
Display
colour
Function
Indicator/Alarm unit
Profibus Indicator
Display colour
Green display
Red display
Supply voltage
230Vac
24Vac/dc
Note 1: By default, alarm 1
will be assigned to relay
output 1 and alarms 2, 3 and 4
will be assigned to Modules 1,
2 and 3 respectively.
Note 2: The allocation of
alarms to the dual relay
outputs must be performed in
configuration by the customer.
Note 3: Triple contact or logic
inputs can be configured, by
the user, for any of the
functions listed under Digital
Inputs 1 and 2.
Note 4: The triple logic output
can configured as alarm
outputs or as telemetry
outputs via digital
communications.
Sensor
Input
Supply
voltage
Module 1
Module 2
Modules 1, 2 and 3
XX
Module not fitted
Alarm Relay output (change-over)
R4
Module fitted unconfigured
OR Select alarm configuration from table
A.
DC retransmission
D6
Module fitted unconfigured
First character
VProcess Value retransmission
SSetpoint retransmisssion
ZError retransmission
Second character
-1
0-20mA
-2
4-20mA
-3
0-5Vdc
-4
1-5Vdc
-5
0-10Vdc
Dual relay (Note 2)
RR
Module fitted unconfigured
Triple contact input (Note 3)
TK
Module fitted unconfigured
Triple logic input (Note 3)
TL
Module fitted unconfigured
Triple logic output (Note 4)
TP
Module fitted unconfigured
Transmitter supply
MS
24Vdc, 20mA supply
Strain Gauge Transducer supply (modules
1 & 2 only) (note 5)
G3
5V transducer supply
G5
10v transducer supply
2nd analogue input (module 3 only)
D5
Module fitted unconfigured
For configuration, see PV Function
field
SOFTWARE CONFIGURATION
Setpoint
Setpoint
Display
Digital
min
max
Units
input 1
Note 6
Note 6
Sensor input & 2nd DC input
Module 3
Relay
Output 1
Relay Output 1
XX
Not fitted
RF
Fitted unconfigured
OR Select alarm configuration
from table A
PDS
Module
Manual
Comms module
XX
Module not fitted
RS232 Module
A2
Module fitted
unconfigured
A
Modbus protocol
M
AE
EI-Bisynch protocol
RS485 (2-wire) Module
Y2
Module fitted
unconfigured
YM
Modbus protocol
YE
EI-Bisynch protocol
RS485 (4-wire) (= RS422)
Module
F2
Module fitted
unconfigured
FM
Modbus protocol
FE
EI-Bisynch protocol
Profibus Module
PB
High speed RS485
Table A:
Alarm relay configuration
(See note 1)
Non-latched alarms
FH
High alarm
FL
Low alarm
DB
Deviation band alarm
DL
Deviation low alarm
DH
Deviation high alarm
RA
Rate-of -change alarm
Latched alarms
HA
High alarm
LA
Low alarm
BD
Deviation band alarm
WD
Deviation low alarm
AD
Deviation high alarm
RT
Rate-of -change alarm
NW
New alarm
PDS module
Module not fitted
Module fitted
unconfigured
Remote setpoint input
10
XX
M6
RS
XXX
ENG
FRA
GER
NED
SPA
SWE
ITA
Note 5: By default, the
transducer supply for input 1
will be installed in module
position 2 and the transducer
supply for input 2 in module
position 1.
Manual
None
English
French
German
Dutch
Spanish
Swedish
Italian
Configuration of 2nd analogue input requires D5 in module 3
2 DC
PV
2nd Input
2nd Input
Configuration
Input
Function
Display Min
Display Max
option
Note 7
Note 8
Note 8
nd
Digital
input 2
Setpoint min & max
°F
Min
Max
Min
Max
-210
1200
-340
2192
-200
1372
-325
2500
-200
400
-325
750
-200
900
-325
1650
-250
1300
-418
2370
-50
1768
-58
3200
-50
1768
-58
3200
0
1820
32
3308
0
1369
32
2496
-200
850
-325
1562
Range Min
Range Max
-9999
99999
-9999
99999
-9999
99999
-9999
99999
-9999
99999
-9999
99999
°C
Thermocouples
J Type J
K Type K
T Type T
L Type L
N Type N
R Type R
S Type S
B Type B
P Platinell II
Z Pt100
Process inputs (Scaled to setpoints max & min)
F -100 to +100mV
Y 0 to 20mA (note 2)
A 4 to 20mA (note 2)
W 0 to 5Vdc
G 1 to 5Vdc
V 0 to 10Vdc
Factory downloaded input
C Type C -W5%Re/W26%Re
“Table Reference
(default downloaded input)
Number” Ctc
D Type D - W3%Re/W25%Re
“T035”
E E thermocouple
“T012”
1 Ni/Ni18%Mo
“T033”
2 Pt20%Rh/Pt40%Rh
“T025”
3 W/W26%Re (Engelhard)
“T09”
4 W/W26%Re (Hoskins)
“T029”
5 W5%Re/W26%Re (Engelhard)
“T011”
6 W5%Re/W26%Re
“T038”
(Bucose)
7 Pt10%Rh/Pt40%/Rh
“T023”
8 Exergen K80 I.R. Pyrometer
“Er80”
Comms
Module
0 to 2319
32 to 4200
0 to 2399
-270 to 999
0 to 1399
0 to 1870
0 to 2000
0 to 2010
10 to 2300
0 to 2000
32 to 4350
-450 to 1830
32 to 2550
32 to 3398
32 to 3632
32 to 3650
50 to 4172
32 to 3632
200 to 1800
-45 to 650
392 to 3272
-49 to 1202
C
F
XX
LO
HI
FN
RS
XX
AC
KL
SR
PV
M5
J1
J2
J3
J4
XX
SG
MP
o
C
F
o
Display Units
o
K
K
X
Blank
PV function
Input 1 displayed
PV = the lowest of i/p 1 and 2
PV = the highest of i/p 1 and
2
PV derived from i/p 1 and 2
Remote setpoint
Digital inputs 1 & 2
Disabled
Alarm acknowledge
Keylock
Remote setpoint select
Select process value input 2
CTX mode 5 (digital input 2
only). For use with PDTCX
‘smart’ current transformer.
Initiate tare correction on
strain gauge input 1
Initiate tare correction on
strain gauge input 2
Initiate automatic calibration
of strain gauge input 1
Initiate automatic calibration
of strain gauge input 2
Configuration Option
Standard
Load cell/strain gauge
pressure transducer
Note 6: Setpoint min and max: Include the decimal points required in the displayed value.
Note 7: Select the code required from the Sensor Input table.
nd
Note 8: These two fields are used to scale the 2 DC input if it is a linear process input, otherwise it should be left blank.
Note 9: For mA inputs, a 1% 2.49Ω current sense resistor is supplied. For greater accuracy, a 0.1% resistor can be ordered - Part No. SUB2K/249R.1.
Part Number HA027240
Issue 5.0
Feb 2015
59
2408i Indicator
Engineering Manual
6 Safety and EMC Information
Safety
This indicator complies with the European Low Voltage
Directive 73/23/EEC, amended by 93/68/EEC, by the
application of the safety standard EN 61010.
Electromagnetic compatibility
This indicator conforms to the essential protection
requirements of the EMC Directive 89/336/EEC,
amended by 93/68/EEC, by the application of a
Technical Construction File. This indicator satisfies the
general requirements of the industrial environment
defined in EN 50081-2 and EN 50082-2.
General
The information contained in these instructions is
subject to change without notice. While every effort
has been made to ensure the accuracy of the
information, your supplier shall not be held liable for
errors contained herein.
Unpacking and storage
The packaging should contain the indicator, two panel
retaining clips, a 2.49Ω current sense resistor and this
instruction leaflet.
If the packaging or the indicator is damaged, do not
install the product but contact your supplier.
This indicator has no user serviceable parts. Contact
your supplier for repair.
Caution: Charged capacitors
W
Before removing the indicator from its sleeve,
switch off the supply and wait two minutes to allow
capacitors to discharge. Failure to observe this
precaution may damage the indicator or cause mild
electric shock.
Precautions Against Electrostatic Discharge
Damage
W
When the indicator is removed from its sleeve, it
is vulnerable to damage by electrostatic. To avoid this,
observe anti-static handling precautions.
Cleaning
Do not use water or water based products to clean
labels or they will become illegible. Isopropyl alcohol
may be used to clean labels. A mild soap solution may
be used to clean other exterior surfaces of the product.
Safety Symbols
The following safety symbols are used on the controller
and in this manual:
W Caution, important safety information
4

Functional earth (ground) terminal
Useful information or hint
Personnel
Installation must be carried out by qualified personnel.
Caution: Live sensors
W The alarm acknowledge/keylock input is
electrically connected to the sensor input (e.g.
thermocouple). In some installations the temperature
sensor may become live. The indicator is designed to
operate under these conditions, but you must ensure
that this will not damage other equipment connected
to the logic input/output and that service personnel do
not touch this connection while it is live. With a live
sensor, all cables, connectors and switches for
connecting the sensor and non-isolated inputs and
outputs must be mains rated.
Wiring
W Wire the indicator in accordance with the wiring
data given in these instructions. Take particular care
not to connect AC supplies to the low voltage sensor
input or logic outputs. Only use copper conductors for
connections, (except thermocouple). Ensure that the
installation complies with local wiring regulations, and
observe maximum voltage safety limits.
Power Isolation
W
The installation must include a power isolating
switch or circuit breaker that disconnects all current
carrying conductors. The device should be mounted in
close proximity to the indicator, within easy reach of
the operator and marked as the disconnecting device
for the indicator.
Voltage rating
W
The maximum continuous voltage applied
between any connection and ground must not exceed
264Vac.
For the above reason the indicator should not be wired
to a three-phase supply with an unearthed star
connection. Under fault conditions such a supply
could rise above 264Vac with respect to ground and
the product would not be safe.
Conductive pollution
W
Electrically conductive pollution must be
excluded from the cabinet in which the indicator is
mounted. For example, carbon dust is a form of
electrically conductive pollution. Where condensation
is likely, for example at low temperatures, include a
thermostatically controlled heater in the cabinet.
Installation requirements for EMC
•
For general guidance refer to EMC Installation
Guide, HA025464.
•
It may be necessary to fit a filter across the relay
output to suppress conducted emissions. The filter
requirements will depend on the type of load.
Routing of wires
To minimise the pick-up of electrical noise, the sensor
input wiring should be routed away from high-current
power cables. Where it is impractical to do this, use
shielded cables with the shield grounded at both ends.
Enclosure of live parts
The indicator must be installed in an enclosure to
prevent hands or metal tools touching parts that may
be electrically live.
60
Part Number HA027240
Issue 5.0
Feb 2015
2408i Indicator
Engineering Manual
7 Technical Specification
Main process value input and second DC input
Transmitter supply
Low level range
-100 to +100mV
Rating
High level range
0-20mA or 0-10Vdc
Strain gauge bridge supply
Sample rate
9Hz
Bridge voltage
Software selectable, 5 or 10Vdc
Resolution
<2µV for low level inputs
Bridge resistance
300Ω to 10KΩ
<2mV for high level inputs
Internal shunt resistor
30.1KΩ at 0.25%, used for
calibration of 350Ω bridge
o
Linearity
Better than 0.2 C
Calibration accuracy
+0.2% of reading, or +1oC or
+1LSD, whichever is the greater
User calibration
Low and high offsets can be
applied
Input filtering
OFF to 999.9 seconds
Thermocouple types
Refer to ordering code sensor
input table
Cold junction
compensation
In automatic mode, >30:1 rejection
of ambient temperature change.
3-wire Pt100 input Bulb
current:
0.3mA
Maximum lead resistance
Up to 22Ω in each lead without
error
nd
nd
2 analogue input
functions
2 process value, remote setpoint,
select min, select max, derived
value
Input impedance, mV
inputs
>10MΩ
Input impedance, Volt
inputs
>69KΩ
20mA, 24Vdc
Alarms
Number of alarms
Four
Alarm types
High, low, deviation high,
deviation low, deviation band,
rate of change in units/sec, rate
of change in units/min, new
alarm status. Sensor break
alarm
Alarm modes
Latching or non-latching.
Blocking Energised or deenergised in alarm
Alarm delay
OFF to 999.9 seconds
Communications
Module types
RS232, 2-wire RS485 and 4wireRS485
Protocols
Modbus or EI-Bisynch (ASCII)
Devicenet
Profibus
PDS
Digital inputs
Functions
Contact closure or open collector inputs
Remote setpoint input from
master controller
General
Note: These are powered by the controller
Display colour
Red or green options
Number of digits
Five with up to three decimal
places
Supply
100 to 230Vac +15%, 48 to 62Hz
or
24Vac, 48 to 62Hz, -15%+10% or
24 Vdc -15%+20%
Power consumption
15W max
Operating ambient
0 to 55oC and 5 to 95% RH noncondensing
Storage temperature
-10 to +70oC
Digital input functions
Panel sealing
IP65, NEMA12
As per digital inputs 1 & 2 in the ordering code
Dimensions
96W x 48H x 150D
Digital outputs
Weight
400g max
EMC Standards:
EN50081-2 & EN50082-2 generic
standards for industrial
environments
Safety standards
Meets EN 61010, Installation
category II, pollution degree 2.
Atmospheres
Not suitable for use above
2000m or in explosive or
corrosive atmospheres
Digital inputs 1 & 2
Switching voltage/current:
(Non isolated from PV)
On state resistance >28KΩ
Triple contact closure
inputs
Isolated. Specification as dig.
inputs 1 & 2
Externally powered inputs
Triple logic inputs
Off state: <5Vdc
On state: 10.8 to 30Vdc @ 2.5mA
Relay rating
2A, 264Vac resistive
Triple logic output
8mA, 12Vdc per channel
Digital output functions
as per the ordering code
DC retransmission
Range
Scaleable between 0-20mA and 010Vdc
Resolution
1 part in 10,000
Retransmission values
Process value, setpoint or error
from
Part Number HA027240
Issue 5.0
Feb 2015
61
Engineering Manual
62
2408I Indicator
Part Number HA027240
Issue 5.0
Feb 2015
Eurotherm:
International sales and support
Contact Information
Eurotherm Head Office
Faraday Close,
Durrington,
Worthing, West Sussex,
BN13 3PL
Worldwide Offices
www.eurotherm.com/global
Sales Enquiries
T +44 (01903) 695888
General Enquiries
T +44 (01903) 268500
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©Copyright Invensys Eurotherm Limited 2014
Invensys, Eurotherm, the Eurotherm logo, Chessell, EurothermSuite, Mini8, Eycon, Eyris, EPower, EPack nanodac, piccolo, versadac, optivis, Foxboro, and Wonderware are
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All rights are strictly reserved. No part of this document may be reproduced, modified or transmitted in any form by any means, neither may it be stored in a retrieval system
other than for the purpose to act as an aid in operating the equipment to which the document relates, without the prior written permission of Invensys Eurotherm Limited.
Eurotherm Limited pursues a policy of continuous development and product improvement. The specifications in this document may therefore be changed without notice. The
information in this document is given in good faith, but is intended for guidance only.
Eurotherm Limited will accept no responsibility for any losses arising from errors in this document.
HA027240/5 (CN32726)
2408i User Manual
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