Fema I4 Series User manual

www.fema.es
SERIES I4 · Model I4P
USER’S MANUAL
ISOLATED
SIGNAL
CONVERTER
Section INDUSTRIAL
5488r02
Process
mA
Vdc
NTC
Temperature
tc
Temperature
Pt
Temperature Potentiometer
Resistances
INDUSTRIAL

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
2
SIGNAL CONVERTER I4P
Signalconverterforprocessandtemperaturesignals,isolated,industrialapplications
Isolated signal converter for process and temperature signals. Accepts a wide range of process signals including 4/20 mA, 0/10 Vdc, potentiometers
and resistance measurements, providing excitation voltage to power the transducer when needed. Accepts a wide range of temperature signals,
including Pt100, Pt500, Pt1000, thermocouples J, K, N, E, T, R, S, C and B, NTC sensors from 44004 to 44008 and from 44030 to 44034, and a
congurable NTC range with congurable R25 and ß parameters.
Congurable output in 4/20 mA (active or passive) or 0/10 Vdc. Universal power supply from 18 to 265 Vac/dc. 3 way isolation between input, output
and power circuits. Circuit isolation prevents ground loops and transient propagation, protecting remote equipment and signal integrity.
Predened conguration codes available for fast and easy conguration.
Advanced conguration menu available to customize input and output
signal ranges to specic values required. Conguration through
front push-button keypad. Front information displays available for
conguration and system information (input signal value, output signal
value, congured label, signal percentage and process value).
Built-in ‘force’ functions to manually generate low and high output
signals, to validate remote instrumentation during installation. ‘SOS’
mode to help on critical maintenance and repairs. Congurable power
frequency rejection lter. ‘Password’ function to block non-authorized
access to ‘conguration menu’.
Designed for industrial use, with potential integration into a wide range of
applications, reduced cost, excellent quality and available customization.
1. How to order
1. How to order . . . . . . . . . . . . . . . . . . . . . . . . .2
2. Material included . . . . . . . . . . . . . . . . . . . . . . 2
3. Additional information. . . . . . . . . . . . . . . . . . . . 2
4. Installation and start-up . . . . . . . . . . . . . . . . . . . 3
5. Typical applications . . . . . . . . . . . . . . . . . . . . . 3
6. SOS mode . . . . . . . . . . . . . . . . . . . . . . . . . . 3
7. Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 3
8. Predened conguration codes . . . . . . . . . . . . . . .4
9. Connections and dimensions (mm (inch)) . . . . . . . . . . 5
10. How to operate the instrument . . . . . . . . . . . . . . .6
10.1 Conguration system 6
10.2 ‘Normal mode’ of operation 6
10.3 How to operate the ‘Conguration menu’ 6
10.4 How to operate the ‘Force’ menu 7
10.5 How to activate the ‘Messages’ function 7
10.6 Fast and advanced congurations 7
11. Input signals . . . . . . . . . . . . . . . . . . . . . . . . 8
11.1 Process 8
11.2 Potentiometers 8
11.3 Resistances 9
11.4 NTC sensors 9
11.5 Thermocouples 10
11.6 Pt100 sensors and other Pt 11
12. Technical specications . . . . . . . . . . . . . . . . . 13
13. Conguration menu. . . . . . . . . . . . . . . . . . . . 14
13.1 Function codes 14
13.2 Input range 14
13.3 Output range 15
13.4 Temperature conguration 16
13.5 Process conguration 16
13.6 Advanced scaling 18
13.7 Display information 19
13.8 Key ‘UP’ (‘force’ menu) 19
13.9 Key ‘LE’ (‘messages’ function) 20
13.10 ‘Tools’ menu 20
14. Full conguration menu. . . . . . . . . . . . . . . . . . 22
15. Factory default parameters. . . . . . . . . . . . . . . . 24
16. Error codes . . . . . . . . . . . . . . . . . . . . . . . . 24
17. Precautions on installation. . . . . . . . . . . . . . . . 25
18. Warranty . . . . . . . . . . . . . . . . . . . . . . . . . 25
19. CE declaration of conformity . . . . . . . . . . . . . . . 25
INDEX
USER’S MANUAL
The instrument is provided with the following elements:
• 1 x instrument I4P
• 4 x plug-in screw terminals
• 1 x quick installation guide
2. Material included
User’s Manual www.fema.es/docs/5488_I4P_manual_en.pdf
Datasheet www.fema.es/docs/5486_I4P_datasheet_en.pdf
Quick installation guide www.fema.es/docs/5484_I4P_installation_en.pdf
CE declaration www.fema.es/docs/5480_CE-Declaration_I4P_en.pdf
Warranty www.fema.es/docs/4153_Warranty1_en.pdf
Web www.fema.es/Series_I4
3. Additional information
When the marks ‘Attention’ or ‘Risk of electrical shock’
appear, read the documentation for information about the
nature of the risk.
Reference Description
I4P Signal converter
I4P.1442 Signal converter with custom features

SERIES I4 · Model I4P
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 3
If this is the rst time you are conguring the instrument, below
are the steps to follow during a rst installation. Read all the
manual sections in order to have a full and clear view of the
characteristics of the instrument. Do not forget to read the installation
precautions at section 17.
1. Install the instrument at the DIN rail
2. Read how to operate the instrument (see section 10)
3. Connect the input, the output and the power terminals (see section 9).
4. Congure the input and output signals
• choose a predened conguration code (see section 8)
• introduce the code at the instrument (see section 13.1)
5. If
needed, customize the input and output signal ranges (see section 13.6)
6. If needed, congure the display reading (see section 13.7), the key ‘UP’
(5) ‘force’ menu (see section 13.8), and the key ‘LE’ (3) ‘messages’ function
(see section 13.9).
7. If needed, block access to the ‘conguration menu’ (see section 13.10)
4. Installation and start-up
To measure process or temperature signals and provide a standard
process signal in 4/20 mA or 0/10 Vdc. Accepts signals from standard
thermocouples, Pt and Ntc sensors, potentiometers, resistances and
process signals. Signal acquisition, linearization and transmission to
remote acquisition devices. Isolation between circuits provided. Ranges
can be scaled to the desired range.
5. Typical applications
The instrument includes a congurable ‘messages’ function that provides
advanced system information on the display, available to the operator
with a single click at the front key ‘LE’ (3).
This information is helpful during start-up, installation, system
verication, routine maintenance and troubleshooting, as messages and
values provide information on the actual input and output signal value,
actual percentage of the input signal compared to the full scale and
scaled process values.
This information is available at any time, and is displayed sequentially
when requested (except while on ‘SOS mode’). Access to this information
reduces maintenance time, improves time invested in failure location,
and helps for an easy resolution of the problem.
Additionally, each instrument can be assigned a custom label code of up
to 8 characters (see Table 1), that can be displayed at the front display
or at the messages sequence, making system identication of each
instrument an easy task.
To congure the ‘messages’ function, see section 13.9.
The instrument includes a congurable ‘SOS mode’ function that provides
a way to manually congure a xed output signal. This output signal
remains xed, independent of the input signal value or sensor state.
This function allows to perform urgent maintenance or repair tasks at the
input section of the system, for example replacing temperature probes
or pressure transducers, while the instrument still provides a controlled
signal that allows the process to continue its activity, under human
surveillance. When the maintenance or repair task has been performed,
the instrument can be taken back to the standard working mode, where
the output signal is proportional to the input.
When manually activated, the ‘SOS mode’ generates the output signal
congured, and the front display remains ashing with the message
‘SoS’. All other systems are disabled, which means that :
• no error messages will be shown on display
• no key ‘UP’ (5) ‘fast access’ menu is accessible
• no key ‘LE’ (3) ‘messages’ function is accessible
• no ‘Eco’ mode activates
Only key ‘SQ’ (<) is accessible, to access the ‘conguration menu’
(eventually this access can be password locked) in order to deactivate
the ‘SOS mode’. Deactivation of ‘SOS mode’ must be performed manually
by conguring the function to ‘oFF’.
To congure the ‘SOS mode’ function, see section 13.10.
6. SOS mode
Table 1 | Available label codes (‘Label’ parameter)
Letters Numbers Special
An 0 -
bo1_
c P 2 .
dq 3 º
E r 4 (blank)
FS 5
G t 6
hu7
I V 8
JW9
KX
L Y
M Z
7. Messages
Labeling examples (‘Label’ parameter): an application measures ambient
temperature from a Pt100, burner temperature from a thermocouple J,
and pressure from 4/20 mA pressure transducer. All signals are converted
to 4/20 mA for retransmission to PLC or SCADA. Three I4P converters are
being used, to measure Pt100, thermocouple J and 4/20 mA signals. Each
I4P can be congured the following label for easy identication :
• Label for ambient temperature : TAmb.ºC
• Label for burner temperature : TBur.ºC
• Label pressure measurement: Prs.Bar

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
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Table 2 | Predened conguration codes - Input / Output
Input Signal
Range
Sensor Output 4/20 mA
Code
Output 0/10 Vdc
Code
See section
...
4/20 mA Process 010 110 11.1
0/10 Vdc 011 111
0/100 % Potentiometer 012 112 11.2
0/100 % Passive Pot. 013 113
0/1
KOhm
Resistance
014 114
11.3
0/10
KOhm 015 115
0/100
KOhm 016 116
0/1
MOhm 017 117
Reserved 018 to 019 118 to 119
-80/120 ºC Ntc 44004 020 120
11.4
-80/120 ºC Ntc 44005 021 121
-80/120 ºC Ntc 44006 022 122
-80/120 ºC Ntc 44007 023 123
-80/120 ºC Ntc 44008 024 124
-80/75 ºC Ntc 44030 025 125
-80/75 ºC Ntc 44031 026 126
-80/75 ºC Ntc 44032 027 127
-80/75 ºC Ntc 44033 028 128
-80/75 ºC Ntc 44034 029 129
-50/90 ºC
Ntc R25=10K β=3500 030 130
-200/1200 ºC
Thermocouple J
031 131
11.5
0/700 ºC 032 132
0/400 ºC 033 133
0/250 ºC 034 134
0/150 ºC 035 135
-200/1372 ºC
Thermocouple K
036 136
11.5
0/1200 ºC 037 137
0/700 ºC 038 138
0/400 ºC 039 139
0/300 ºC 040 140
0/250 ºC 041 141
0/150 ºC 042 142
Reserved 043 to 044 143 to 144
-200/1300 ºC
Thermocouple N
045 145
11.5
0/1200 ºC 046 146
0/1000 ºC 047 147
Reserved 048 to 049 148 to 149
8. Predened conguration codes
Select the desired code for your application, and check the following
sections for more information:
• for information on how to activate a code, see section 13.1
• to customize the input and output signals, see section 13.6
Notes
• Code ‘uSEr’ indicates that a user custom conguration is active, and it does not
match any of the listed codes This code is non-selectable, for information only.
Example: select code ‘011’ for 0/10 Vdc=4/20 mA, the instrument reads code ‘011’.
Later, congure the input to 0/7 Vdc=4/20 mA, this does not match a listed code, and
the instrument reads ‘uSEr’. Or change the output to 0/10 Vdc=1/5 Vdc, this does not
match a listed code, and the instrument reads ‘uSEr’.
• Code ‘----’ identies the end of the list, it follows code ‘199’ and the list
continues with code ‘010’. Select ‘----’ to exit the list without applying changes.
Table 2 | Predened conguration codes - Input / Output
Input Signal
Range
Sensor Output 4/20 mA
Code
Output 0/10 Vdc
Code
See section
...
-200/1000 ºC
Thermocouple E
050 150
11.5
0/1000 ºC 051 151
0/800 ºC 052 152
0/500 ºC 053 153
0/300 ºC 054 154
-200/400 ºC
Thermocouple T
055 155
11.5
0/400 ºC 056 156
0/300 ºC 057 157
0/200 ºC 058 158
-50/1768 ºC
Thermocouple R
059 159
11.5
0/1600 ºC 060 160
0/1000 ºC 061 161
-50/1768 ºC Thermocouple S 062 162 11.5
0/1600 ºC 063 163
0/2320 ºC Thermocouple C 064 164 11.5
0/1500 ºC 065 165
250/1820 ºC Thermocouple B 066 166 11.5
Reserved 067 to 069 167 to 169
-200/850 ºC
Pt100
(2 and 3 wires)
070 170
11.6
0/600 ºC 071 171
0/400 ºC 072 172
0/300 ºC 073 173
0/200 ºC 074 174
0/100 ºC 075 175
-50/+50 ºC 076 176
Reserved 077 to 079 177 to 179
-200/850 ºC Pt500 080 180 11.6
-200/850 ºC Pt1000 081 181
Reserved 082 to 099 182 to 199
(End of list) ‘----’ (see notes below)
(Custom selection) ‘uSEr’(see notes below)

SERIES I4 · Model I4P
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 5
9. Connections and dimensions (mm (inch))
Table 3 | INPUT signal connections
INPUT
signal
Input terminals Section
...
123456
4/20 mA
(passive loop)
mA-
(in)
+15 Vexc
(out) 11.1
4/20 mA
(active loop)
mA+
(out)
mA-
(in) 11.1
0/10 Vdc
(2 wires) common +Vdc 11.1
0/10 Vdc
(3 wires) common +Vdc +15 Vexc 11.1
Thermocouples tc- tc+ 11.5
Ntc ntc- ntc+ 11.4
Pt100
(3 wires) pt100- pt100- (3rd wire) pt100+ 11.6
Pt100
(2 wires) pt100-
short to
terminal 1
pt100+ 11.6
Pt500, Pt1000 pt- pt+ 11.6
Resistances res- res+ 11.3
Potentiometer pot- signal pot+
(+5 Vexc) 11.2
Passive
potentiometer common signal Vexc (in) 11.2
Table 4 | OUTPUT signal connections
OUTPUT
signal
Output terminals Connections
789
4/20 mA
active output
mA-
(in)
mA+
(out)
789
mA+
mA-
4/20 mA
passive output*
(*external loop
power needed)
mA+
(out)
mA-
(in)
789
mA+
mA-
0/10 Vdc common +Vdc
789
common
+Vdc
fuse
Pt+, Ntc+, resistance+
thermocouple +, Pt- (3rd wire)
thermocouple -, Pt-, Ntc-, resistance-
POWER (ABC)
18 to 265 Vac/dc isolated
OUTPUT SIGNAL (789)
mA, Vdc, potentiometer signal
common (0 Vdc or passive mA current out)
signal 4/20 mA (mA current in)
signal 0/10 Vdc (or active mA current out)
Standard (35 mm) DIN
rail mount
1 2 3
106 mm
(4.17’’)
108 mm
(4.25’’)
INPUT SIGNAL (123 456)
~+
~-
A B C
4 5 6
7 8 9
22.5 mm
(0.89’’)
common, pot.-
Vexc (+15 Vdc), pot.+ (5 Vdc)
see ‘Table 3’
see ‘Table 4’
Fuse - This instrument does not
include internal protection fuse.
According to security regulation
EN 61010-1, add a protection fuse to
the power line to act as a disconnection
element, easily accessible to the operator
and identied as a protection device. Use
time-lag fuse, with value :
• 250 mA for voltages > 50 Vac/dc
• 400 mA for voltages < 50 Vac/dc

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
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10. How to operate the instrument
The instrument is fully congurable from the 3 push button keypad and
the 4 red digit led display at the front of the instrument (see Table 5).
AT POWER-UP
When the power supply is connected, the instrument applies the
following sequence :
• the ‘display’ shows the rmware code ‘b0.xx’.
• the ‘display’ shows the congured ‘units’ and ‘input range’ (for
example: ‘tc J’ and ‘1200º).
• the instrument is now in ‘normal mode’ of operation and the ‘display’
shows the ‘information’ congured at section 13.7.
FROM ‘NORMAL MODE’ OF OPERATION
From ‘normal mode’ of operation, the operator can access the following
functions:
• key ‘SQ’ (<) gives access to the ‘conguration menu’ (see section 10.3).
• key ‘UP’ (5) gives access to the ‘force’ menu (see section 10.4).
• key ‘LE’ (5) activates the ‘messages’ function (see section 10.5).
‘ECO’ FUNCTION (‘DISPLAY’ POWERED OFF)
The ‘Eco’ function powers off the display under the following conditions:
• the instrument is in ‘normal mode’ of operation.
• and there is no interaction from the operator for 60 seconds.
The decimal point remains active (ashing), indicating that the
instrument is working correctly. This is a congurable function, enabled
by default. To congure the ‘Eco’ function, see section 13.10.
10.1 Conguration system
10.2 ‘Normal mode’ of operation
HOW TO ENTER THE ‘CONFIGURATION MENU’
With the instrument in ‘normal mode’ of operation (see section 10.2),
press the ‘SQ’ (<) key and maintain for 1 second. The horizontal leds
light from bottom to top. When the upper led lights, the instrument
enters into the ‘conguration menu’.
When entering the ‘conguration menu’, the rst menu entry ‘Function
code’ (codE) is displayed. See section 14 for a full view of the
‘conguration menu’.
If the ‘SQ’ (<) key is released before entering into the
‘conguration menu’, the horizontal leds light downwards from
top to bottom, and the instrument returns to ‘normal mode’ of
operation.
HOW TO OPERATE INSIDE THE ‘CONFIGURATION MENU’
Inside the ‘conguration menu’, use the front keypad to move through
menu entries, parameters, and select conguration values:
•Key ‘SQ’ (<) functions as the ‘ENTER’ key. It selects the menu entry
currently displayed. At numerical value entries, it validates the number
displayed.
•Key ‘UP’ (5) moves vertically through the different menu entries. At
numerical value entries, it modies the selected digit by increasing its
value to 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
•Key ‘LE’ (3) functions as the ‘ESCAPE’ key. It leaves the selected
menu entry, and eventually, will leave the ‘conguration menu’.
When leaving the ‘conguration menu’, the changed parameters are
activated. At numerical value entries, the ‘LE’ (3) key allows to select
the active digit. To modify a numeric value press the ‘UP’ (5) key to
increase the value ‘+1’. Press the ‘SQ’ (<) key to validate the value.
WHEN EXITING THE ‘CONFIGURATION MENU’
When exiting the ‘conguration menu’ without changes (either by
‘rollback’ activation or because there are no changes in the conguration),
the horizontal leds light down from top to bottom, and the instrument
returns to ‘normal mode’ of operation.
When exiting the ‘conguration menu’ with changes, the display leds light
a round shape while the new conguration is stored. When the round
shape is nished, a start-up is applied (see section 10.2). After start-up,
the new conguration is active and the instrument is in ‘normal mode’ of
operation.
‘ROLLBACK’ FUNCTION
If there is no interaction from the operator for 60 seconds, the instrument
exits the ‘conguration menu’ discarding changes, and returns to ‘normal
mode’ of operation.
10.3 How to operate the ‘Conguration menu’
Table 5 | CONFIGURATION SYSTEM
Key ‘SQ’ (<)
Display
Key ‘UP’ (5)
Key ‘LE’ (3)
Table 6 | ‘ECO’ DECIMAL POINT
Flashing
When the operator is inside the ‘conguration menu’, the output
signal will remain overranged at maximum signal. Additional
congurations are available at the ‘On SQ’ parameter (see
section 13.10).
When the operator exits the ‘conguration menu’, the output
signal is temporarily set to minimum value for a time
<5 seconds, while the instrument restarts.

SERIES I4 · Model I4P
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 7
HOW TO ENTER THE ‘FORCE’ MENU
With the instrument in ‘normal mode’ of operation (see section 10.2),
press and hold the ‘UP’ (5) key for 1 second. The horizontal leds light
from bottom to top. When the upper led lights, the instrument enters into
the ‘force’ menu.
If the ‘UP’ (5) key is released before entering into the ‘force’ menu, the
horizontal leds light downwards from top to bottom, and the instrument
returns to ‘normal mode’ of operation.
HOW TO OPERATE INSIDE THE ‘FORCE’ MENU
The available functions inside the ‘force’ menu can be congured (see
section 13.8). By default, ‘Force High’, ‘Force Low’ and ‘Force Set’ are
available. Inside the ‘force’ menu:
• press the ‘UP’ (5) key to move to the next function.
• press the ‘SQ’ (<) key to activate the selected function.
When the function is active, the display will remain ashing. Press the
‘SQ’ (<) key to deactivate the function (display stops ashing), or wait
for the rollback to activate.
DESCRIPTION OF ‘FORCE’ FUNCTIONS
The ‘force’ functions allow to manually force the output signal to the low
and high levels of the output signal selected. These functions allow to
easily validate the correct function of remote elements connected to the
instrument output, such as PLC, HMI’s, SCADAs, etc.
The ‘force low’ function sets the output signal to the minimum value of
the selected range (4 mA or 0 Vdc or the value congured at the ‘output_
low’ parameter).
The ‘force high’ function sets the output signal to the maximum value
of the selected range (20 mA or 10 Vdc or the value congured at the
‘output_high’ parameter).
The ‘force set’ function sets the output signal to a value between 0 and
100% of the maximum selected range (4 to 20 mA or 0 to 10 Vdc or
the range congured at the ‘output_low’ and ‘output_high’ parameters).
When entering the ‘force set’ function, the display reads ‘50’ (the output
is forced to 50% of the congured range). Use keys ‘UP’ (5) and ‘LE’ (3)
to move up to 100% or down to 0% of the congured range.
HOW TO EXIT ‘FORCE’ MENU
To exit the ‘force’ menu, press the ‘LE’ (3) key, or press the key ‘UP’ (5)
key until the parameter ‘----’ appears, and select by pressing the ‘SQ’
(<) key, or wait without pressing any key until the automatic ‘rollback’
activates.
10.4 How to operate the ‘Force’ menu
HOW TO ACTIVATE ‘MESSAGES’ FUNCTION
With the instrument in ‘normal mode’ of operation (see section
10.2), press the ‘LE’ (3) key to activate the ‘messages’ function. The
‘messages’ function displays information about the instrument status.
The information available is congurable (see section 13.9).
The ‘messages’ function ends when all the information has been
displayed or front keys ‘UP’ (5) or ‘SQ’ (<) are pressed. The ‘display’
returns to ‘normal mode’ of operation.
10.5 How to activate the ‘Messages’ function
10. How to operate the instrument (cont.)
Table 7 | Example of ‘Force’ menu with all functions set to ‘on’
‘Force Low’
‘Force high’
Exit
Force Set
See section 13.8 for a list and a description of available functions.
10.6 Fast and advanced congurations
FAST CONFIGURATION
The fastest way to congure the instrument is to activate one of the
predened conguration codes (see section 8).
Access the ‘conguration menu’ and enter the ‘Function code’ (codE)
menu entry. The code displayed is the current active input - output range.
Select the new code and validate. Selecting a code automatically exits
the ‘conguration menu’ and activates the new conguration.
*There are different codes for 4/20 mA and 0/10 Vdc output
signals.
To customize the input and output signals, see the ‘Advanced scaling’
section of the ‘conguration menu’ (see section 13.6).
ADVANCED CONFIGURATION
Additional conguration parameters are available at the ‘conguration
menu’. The operator can customize the input and output signal ranges,
the messages seen on display, the functions available at the ‘force’ menu,
the messages associated to the ‘LE’ (3) key, activate lters, password
function, etc.
See section 13 for a detailed explanation on the ‘conguration menu’.
When exiting the ‘force’ menu, the horizontal leds light down from top to
bottom, and the instrument returns to ‘normal mode’ of operation.
‘ROLLBACK’ FUNCTION
If there is no interaction from the operator for 60 seconds, the instrument
exits the ‘force’ menu and returns to ‘normal mode’ of operation.

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
8
11. Input signals
11.1 Process
Table 8 | Connection examples for process signals
456
mA+ (+15 Vexc)
mA-
Signal 4/20 mA (passive loop)
456
mA-
mA+
Signal 4/20 mA (active loop)
456
+Vdc
common
Signal 0/10 Vdc (2 wires)
456
common
+15 Vexc
+Vdc
Signal 0/10 Vdc (3 wires)
MEASURING 4/20 mA AND 0/10 Vdc PROCESS SIGNALS
The instrument can be congured to measure 4/20 mA
(active and passive) and 0/10 Vdc process signals. The
instrument provides excitation voltage to power-up the
transducer when necessary. See connections at ‘Table 8’.
For bipolar ±20 mA and ±10 Vdc process signals, see our instrument I4E.
PREDEFINED CONFIGURATION CODES
See ‘Table 9’ for a list of predened input-output conguration codes. To
activate a code see section 13.1.
CUSTOMIZED SIGNAL RANGES
To customize the input and / or output signal ranges, access the
‘Advanced scaling’ menu (see section 13.6).
MAXIMUM OVERSIGNAL AND PROTECTIONS
‘Maximum oversignal’ is the maximum signal accepted by the instrument.
Higher signal values may damage the instrument. Lower signal values
are non destructive but may be out of accuracy specications. The input
is protected against inverted connections.
The milliampere input is protected against over currents: the instrument
automatically opens the loop for currents >40 mA (approx.). Error 13 is
displayed (see section 16). The instrument tries to reconnect every 1 second.
EXCITATION VOLTAGE (VEXC)
The instrument provides +15 Vdc excitation voltage at terminal ‘6’. This
excitation voltage is provided to power up the transducer that generates
the signal, up to a maximum of 30 mA.
OUTPUT SIGNAL
The output signal is congurable to 4/20 mA (active and passive) and
0/10 Vdc.
11.2 Potentiometers
MEASURING POTENTIOMETERS
The instrument can be congured to measure potentiometer
signals (3 wires), from potentiometers with nominal value
between 250 Ohms and 15 KOhms. See connections at
‘Table 10’.
The instrument can also be connected to existing potentiometer
measuring circuits, and provide a parallel measure without affecting the
existing measurement circuit (‘passive mode’). Circuits with excitation
voltage to the potentiometer from 5 Vdc to 20 Vdc are accepted. In this
‘passive mode’, the excitation voltage is not provided, but measured from
the existing circuit. See connections at ‘Table 10’.
PREDEFINED CONFIGURATION CODES
See ‘Table 11’ and ‘Table 12’ for a list of predened input-output
conguration codes. To activate a code see section 13.1.
CUSTOMIZED SIGNAL RANGES
To customize the input and / or output signal ranges, access the
‘Advanced scaling’ menu (see section 13.6).
EXCITATION VOLTAGE (VEXC)
The instrument provides +5 Vdc excitation voltage at terminal ‘6’.
In passive mode, external Vexc can be measured up to 20 Vdc. Higher
values can be destructive.
OUTPUT SIGNAL
The output signal is congurable to 4/20 mA (active and passive) and
0/10 Vdc.
Table 9 | Input signal ranges for process signals
Input
range
Code for
4/20 mA output
Code for
0/10 Vdc output
Accuracy
(% FS)
Max.
oversignal Zin
4/20 mA 010 110 <0.10 % 1 Adc V*<2 V
0/10 Vdc 011 111 <0.10% 50 Vdc 1 MOhm
*Voltage drop on terminals <2 Vdc.
Table 10 | Connection examples for potentiometer signals
456
Pot- (common)
Pot+ (+5 Vdc)
signal
456
Pot- (common)
Pot+ (passive)
signal
Passive mode
Process
mA
Vdc
Potentiometer
Table 11 | Input signal ranges for potentiometer signals
Input
range
Code for
4/20 mA output
Code for
0/10 Vdc output
Accuracy
(% FS)
Max.
oversignal
0/100 % 012 112 <0.20 % ---
Table 12 | Input signal ranges for ‘passive mode’ potentiometer signals
Input
range
Code for
4/20 mA output
Code for
0/10 Vdc output
Accuracy
(% FS)
Max. overvoltage on
passive Vexc
0/100 % 013 113 <0.20 % 20 Vdc

SERIES I4 · Model I4P
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 9
11.3 Resistances
MEASURING RESISTANCES
The instrument can be congured to measure resistance
signals with ranges from 1 Kohm up to 1 MOhm.
Measurement uses 2 wires. See connections at ‘Table 13’.
PREDEFINED CONFIGURATION CODES
See ‘Table 14’ for a list of predened input-output conguration codes.
To activate a code see section 13.1.
CUSTOMIZED SIGNAL RANGES
To customize the input and / or output signal ranges, access the
‘Advanced scaling’ menu (see section 13.6).
SENSOR BREAK DETECTION
The instrument detects the sensor break and displays an error message
(see section 16).
CURRENT THROUGH THE SENSOR
The instrument generates a xed current to measure the resistance
values.
MAXIMUM OVERSIGNAL AND PROTECTIONS
Active signals are not to be connected to the resistance input terminals.
Maximum active input is 3 Vdc. Higher voltage inputs will be internally
shorted and can be destructive.
OUTPUT SIGNAL
The output signal is congurable to 4/20 mA (active and passive) and
0/10 Vdc.
11. Input signals (cont.)
11.4 NTC sensors
MEASURING NTC SENSORS
The instrument can be congured to measure temperature
from common NTC sensors. Accepts standard NTC models
44004, 44005, 44006, 44007, 44008, 44030, 44031, 44032,
44033 and 44034. See connections at ‘Table 15’.
An independent range exists for NTC sensors characterized by its R25 and
β parameters. Congurable R25 values from 1.0 KOhm to 200.0 KOhm,
and β values from 2500 to 5500. This type of NTC can read signals down
to 0 Ohms and up to 16 MOhms.
PREDEFINED CONFIGURATION CODES
See ‘Table 16’ for a list of predened input-output conguration codes.
To activate a code see section 13.1.
CUSTOMIZED SIGNAL RANGES
To customize the input and / or output signal ranges, access the
‘Advanced scaling’ menu (see section 13.6).
SENSOR BREAK DETECTION
The instrument detects the sensor break and displays an error message
(see section 16).
CURRENT THROUGH THE SENSOR
The instrument generates a maximum of 167 uA through the NTC
sensors, with a power dissipation of <10 uW.
OUTPUT SIGNAL
The output signal is congurable to 4/20 mA (active and passive) and
0/10 Vdc.
Table 13 | Connection examples for resistance signals
123
res+
res-
Table 14 | Input signal ranges for resistances
Input
range
Code for
4/20 mA output
Code for
0/10 Vdc output
Accuracy
(% FS)
Current on
resistance
Max.
overvoltage
0/1 KOhm 014 114 <0.20 % 167 uA 3 Vdc
0/10 KOhm 015 115 <0.20 % 45 uA 3 Vdc
0/100 KOhm 016 116 <0.20 % 4.5 uA 3 Vdc
0/1000 KOhm 017 117 <0.50 % 1 uA 3 Vdc
Table 15 | Connection examples for NTC signals
123
ntc+
ntc
-
Table 16 | Input signal ranges for NTC sensors
Sensor Measurement range
Code for
4/20 mA output
Code for
0/10 Vdc output
Accuracy
(% FS)
Ntc 44004 -80/120 ºC -112/248 ºF 020 120 <0.30 %
Ntc 44005 -80/120 ºC
-112/248 ºF 021 121 <0.25 %
Ntc 44006 -80/120 ºC
-112/248 ºF 022 122 <0.10 %
Ntc 44007 -80/120 ºC
-112/248 ºF 023 123 <0.15 %
Ntc 44008 -80/120 ºC
-112/248 ºF 024 124 <0.20 %
Ntc 44030 -80/75 ºC
-112/167 ºF 025 125 <0.10 %
Ntc 44031 -80/75 ºC
-112/167 ºF 026 126 <0.10 %
Ntc 44032 -80/75 ºC
-112/167 ºF 027 127 <0.20 %
Ntc 44033 -80/75 ºC
-112/167 ºF 028 128 <0.10 %
Ntc 44034 -80/75 ºC
-112/167 ºF 029 129 <0.10 %
Ntc R25=10K, β=3500
-50/90 ºC -58/194 ºF 030 130 <0.20 %
Resistances
NTC
Temperature

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
10
11.5 Thermocouples
11. Input signals (cont.)
Table 18 | Temperature ranges for thermocouple J
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Thermoc.
J
031 131
-200/1200 ºC -328/2192 ºF <0.15% FS ±2º C
032 132 0/700 ºC 32/1292 ºF <0.20% FS ±2º C
033 133 0/400 ºC 32/752 ºF <0.10% FS ±2º C
034 134 0/250 ºC 32/482 ºF <0.15% FS ±2º C
035 135 0/150 ºC 32/302 ºF <0.20% FS ±2º C
Table 19 | Temperature ranges for thermocouple K
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Thermoc.
K
036 136
-200/1372 ºC -328/2501 ºF <0.15% FS ±2º C
037 137 0/1200 ºC 32/2192 ºF <0.15% FS ±2º C
038 138 0/700 ºC 32/1292 ºF <0.20% FS ±2º C
039 139 0/400 ºC 32/752 ºF <0.30% FS ±2º C
040 140 0/300 ºC 32/572 ºF <0.40% FS ±2º C
041 141 0/250 ºC 32/482 ºF <0.40% FS ±2º C
042 142 0/150 ºC 32/302 ºF <0.70% FS ±2º C
Table 20 | Temperature ranges for thermocouple N
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Thermoc.
N
045 145
-200/1300 ºC -328/2372 ºF <0.15% FS ±2º C
046 146 0/1200 ºC 32/2192 ºF <0.15% FS ±2º C
047 147 0/1000 ºC 32/1832 ºF <0.15% FS ±2º C
Table 21 | Temperature ranges for thermocouple E
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Thermoc.
E
050 150
-200/1000 ºC -328/1832 ºF <0.15% FS ±2º C
051 151 0/1000 ºC 32/1832 ºF <0.15% FS ±2º C
052 152 0/800 ºC 32/1472 ºF <0.15% FS ±2º C
053 153 0/500 ºC 32/932 ºF <0.15% FS ±2º C
054 154 0/300 ºC 32/572 ºF <0.15% FS ±2º C
Table 22 | Temperature ranges for thermocouple T
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Thermoc.
T
055 155
-200/400 ºC -328/752 ºF <0.15% FS ±2º C
056 156 0/400 ºC 32/752 ºF <0.15% FS ±2º C
057 157 0/300 ºC 32/572 ºF <0.15% FS ±2º C
058 158 0/200 ºC 32/392 ºF <0.15% FS ±2º C
Table 23 | Temperature ranges for thermocouple R
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Thermoc.
R
059 159
-50/1768 ºC -58/3214 ºF <0.15% FS ±2º C
060 160 0/1600 ºC 32/2912 ºF <0.15% FS ±2º C
061 161 0/1000 ºC 32/1832 ºF <0.15% FS ±2º C
Table 24 | Temperature ranges for thermocouple S
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Thermoc.
S
062 062
-50/1768 ºC -58/3214 ºF <0.15% FS ±2º C
063 063 0/1600 ºC 32/2912 ºF <0.15% FS ±2º C
Table 17 | Connection examples for thermocouples
123
tc+
tc-
For a correct measurement
of thermocouple signals,
always use compensated
cable between the instrument and
the thermocouple.
Table 25 | Temperature ranges for thermocouple C
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Thermoc.
C
064 164
0/2320 ºC 32/4208 ºF <0.15% FS ±2º C
065 165 0/1500 ºC 32/2732 ºF <0.15% FS ±2º C
Table 26 | Temperature ranges for thermocouple B
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Thermoc.
B066 166
250/1820 ºC 482/3308 ºF <0.40% FS ±2º C
MEASURING THERMOCOUPLES
The instrument can be congured to measure temperature
from thermocouple sensors J, K, N, E, T, R, S, C and B. The
instrument automatically compensates the thermocouple cold
junction. All signals according to ITS90. See connections at ‘Table 17’.
PREDEFINED CONFIGURATION CODES
See ‘Table 18’ to ‘Table 26’ for a list of predened input-output
conguration codes. To activate a code see section 13.1.
CUSTOMIZED SIGNAL RANGES
To customize the input and / or output signal ranges, access the
‘Advanced scaling’ menu (see section 13.6).
SENSOR BREAK DETECTION AND SHORT CIRCUIT DETECTION
The instrument detects the sensor break or short circuit error at the
input signals, and displays an error message (see section 16).
MAXIMUM OVERSIGNAL
Maximum oversignal for thermocouple inputs is 1 Vdc. Higher voltage
inputs can be destructive.
TOTAL ERROR
The ‘total error’ is expressed as the measurement error (% of full scale)
plus the cold junction error (indicated as
±2º C) , and is valid for mA
output. For Vdc output, see section 12.
OUTPUT SIGNAL
The output signal is congurable to 4/20 mA (active and passive) and 0/10 Vdc.
tc
Temperature

SERIES I4 · Model I4P
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 11
11.6 Pt100 sensors and other Pt
MEASURING PT TEMPERATURE SENSORS
The instrument can be congured to measure temperature
from Pt100, Pt500 and Pt1000 sensors. See connections at
‘Table 27’.
PREDEFINED CONFIGURATION CODES
See ‘Table 28’ and ‘Table 29’ for a list of predened input-output
conguration codes. To activate a code see section 13.1.
CUSTOMIZED SIGNAL RANGES
To customize the input and / or output signal ranges, access the
‘Advanced scaling’ menu (see section 13.6).
SENSOR BREAK DETECTION AND SHORT CIRCUIT DETECTION
The instrument detects the sensor break or short circuit error at the
input signals, and displays an error message (see section 16).
PT100 WITH 2 AND 3 WIRES
The instrument accepts 2 and 3 wire Pt100 sensor. When using 3 wires,
the instrument applies automatic compensation of the cable resistance
up to 15 Ohms. All three terminals must be connected (see Table 27).
‘ALPHA’ TEMPERATURE COEFFICIENT
The instrument is congured by default, to work with an ‘alpha’ value
of ‘0.0385’ for Pt sensors (Pt100, Pt500, Pt1000). To activate an ‘alpha’
value of ‘0.0390’ see section ‘13.4’. This parameter is associated to the
sensor and depends on the sensor manufacturer.
CURRENT THROUGH THE SENSOR
The instrument generates 960 uA through Pt100 sensors, <170 uA
through Pt500, and <120 uA through Pt1000 sensors.
OUTPUT SIGNAL
The output signal is congurable to 4/20 mA (active and passive) and
0/10 Vdc.
11. Input signals (cont.)
Table 27 | Connection examples for Pt100 (2 and 3 wires) and Pt500, Pt1000
123
Pt100-
Pt100+
Pt100- (3rd wire)
Connections for Pt100 (3 wires)
Pt100-
123
(shortcircuit 1-2)
Pt100+
Connections for Pt100 (2 wires)
123
Pt-
Pt+
Connections for Pt500 and Pt1000 (2 wires only)
Pt
Temperature
Table 28 | Temperature ranges for Pt100
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
(error en ºC)
Pt100
070 170 -200/850 ºC
-328/1562 ºF
<0.25% FS
(<2.6 ºC)
071 171 0/600 ºC 32/1112 ºF <0.25% FS
(<1.5 ºC)
072 172 0/400 ºC 32/752 ºF <0.30% FS
(<1.2 ºC)
073 173 0/300 ºC 32/572 ºF <0.25% FS
(<0.8 ºC)
074 174 0/200 ºC 32/392 ºF <0.30% FS
(<0.6 ºC)
075 175 0/100 ºC 32/212 ºF <0.50% FS
(<0.5 ºC)
076 176 -50/+50 ºC -58/122 ºF <0.50% FS
(<0.5 ºC)
Table 29 | Temperature ranges for Pt500 and Pt1000
Input
signal
Code for
4/20 mA output
Code for
0/10 Vdc output
Measurement range Total error
Pt500 080 180 -200/850 ºC -328/1562 ºF <0.20% FS
Pt1000 081 181 -200/850 ºC
-328/1562 ºF <0.20 % FS

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
12
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SERIES I4 · Model I4P
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 13
12. Technical specications
INPUT SIGNAL RANGES
process 4/20 mA, 0/10 Vdc (active and passive)
excitation voltage +15 Vdc @25 mA
(see section 11.1)
thermocouples J, K, N, E, T, R, S, C and B
conforming to ITS-90
(see section 11.5)
‘Pt’ sensors Pt100 (2 wires and 3 wires)
Pt500, Pt1000 (2 wires)
(see section 11.6)
‘NTC’ sensors (see section 11.4)
resistances ranges from 0/1 Kohm up to 0/1 MOhm
(see section 11.3)
potentiometers nominal value from 250 Ohm to 15 KOhm
(see section 11.2)
ACCURACY AT 25 ºC
see for each type of signal at section 11
*accuracy values are indicated for 4/20 mA output. For
0/10 Vdc output, add +0.05 % to indicated accuracy
values.
THERMAL DRIFT
± 100 ppm/ºC (F.S.)
± 0.05 ºC/ºC (thermocouple cold junction)
STEP RESPONSE
Step response associated to the congured
power lter (see section 13.10). Typical response
values to reach 99% of the output signal, as a
response to a 100% step at the signal input (see
Table 30).
OUTPUT SIGNAL RANGES
active current output 4/20 mA active
max. <22 mA, min. 0 mA
maximum load <400 Ohm
passive current output 4/20 mA passive
max. 30 Vdc on terminals
voltage output 0/10 Vdc,
max. <11 Vdc, min. -0.05 Vdc (typ.)
minimum load > 10 KOhm
CONFIGURATION SYSTEM
key pad + display accessible at the front of the instrument
conguration ‘conguration menu’ and ‘predened codes’
scalable units scalable input ranges
scalable output ranges
scalable process display
POWER SUPPLY
voltage range 18 to 265 Vac/dc isolated
(20 to 240 Vac/dc ±10%)
AC frequency 45 to 65 Hz
consumption <3.0 W
power wires 1 mm2 to 2.5 mm2 (AWG17 to AWG14)
overvoltage category 2
ISOLATION
input - output 3000 Veff (60 seconds)
power - input 3000 Veff (60 seconds)
power - output 3000 Veff (60 seconds)
ENVIRONMENTAL
IP protection IP30
impact protection IK06
operation temperature from 0 to +50 ºC
storage temperature from -20 to +70 ºC
‘warm-up’ time 15 minutes
humidity 0 to 95% non condensing
altitude up to 2000 meters
MECHANICAL
size 106 x 108 x 22.5 mm
mounting standard DIN rail (35 x 7.5 mm)
connections plug-in screw terminal (pitch 5.08 mm)
housing material polyamide V0
weight <150 grams
packaging 120 x 115 x 30 mm, cardboard
Table 30 | Response times
Signal type No lter 50 Hz or 60 Hz lter Both
Process <60 mSec. <250 mSec. <600 mSec.
Pt100 <100 mSec. <320 mSec. <2 Sec.
Thermocouple <100 mSec. <200 mSec. <1 Sec.
Resistances* <100 mSec. <200 mSec. <200 mSec.
*for the 1 MOhm range, applies double the response time indicated

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
14
13. Conguration menu
13.1 Function codes
The fastest way to congure the instrument, is to select a predened
conguration code (see section 8). At the ‘Conguration code’ (codE)
parameter use keys ‘UP’ (5) and ‘LE’ (3) to move up and down
through the list of codes. Locate the desired code, and press ‘SQ’ (<).
The instrument shows the ‘codE’ parameter. Press ‘LE’ (3) to exit the
‘conguration menu’. The instrument stores the new conguration,
applies a ‘power-up’ routine and returns to the ‘normal mode’ of operation
(see section 10.2).
Selecting a ‘reserved’ code or ‘----’ returns to the previous menu without
changes.
When entering the ‘Function code’ (codE) parameter, the active
‘conguration code’ is displayed. If the actual conguration does not
match any of the conguration codes, code ‘uSEr’ is displayed.
There are different codes for 4/20 mA output (codes from 010 to 099)
and 0/10 Vdc output (codes from 110 to 199) (see section 8).
Custom input and output signal ranges can be congured at the
‘Advanced scaling’ section of the ‘conguration menu’ (see section 13.6).
Conguration code
Enter the code (see Table 2)
13.2 Input range
At the ‘Input signal’ (InP) menu entry, select the input signal to be
measured. The different input signals available are grouped by process,
thermocouples, pt sensors, ntc sensors, resistances and potentiometers.
Only one input signal can be selected.
If you have already selected a conguration code (see section
13.1), the input signal has been already selected and there is no
need to manually select the ‘Input range’ (InP) parameter again.
At the ‘Process’ (Proc) parameter select ‘420’ for 4/20 mA or ‘010’ for
0/10 Vdc signal input.
At the ‘Thermocouples’ (tc) parameter select from the available
thermocouples J, K, N, E, T, R, S, C or B.
At the ‘Pt sensors’ (Pt) parameter select from the available pt sensors
Pt100 (2 wires or 3 wires), Pt500 or Pt1000. For 2 and 3 wires Pt100
sensors, see section 11.6 for differences on connection for each case.
At the ‘Ntc sensors 1’ (ntc.1) parameter select from the available Ntc
sensors. The decimal point at the beginning indicates that part of ntc
name is missing. For example, the ‘Ntc 44004’ is designated with ‘.4004’
as the rst number ‘4’ is missing. The same applies to Ntc sensors
44004 to 44009 and 44030 to 44034. For non-standard Ntc sensors,
characterized for R25 and ß parameters, see the the ‘Ntc sensors 2’
(ntc.2) parameter below.
At the ‘Ntc sensors 2’ (ntc.2) congure the input to read from an ntc
sensor, characterized by the R25 and ß parameters. At the ‘Ntc R25’ (r.25)
parameter congure the resistance at 25 degrees of the ntc sensor, in
KOhms, with accepted values from 1.0 KOhms and 200.0 KOhms. At the
‘Ntc ß ’ (BEtA) parameter congure the value fo the ‘ß’ parameter of the
ntc sensor, with accepted values between 2000 and 5500.
At the ‘Resistances’ (rES) parameter select from the available resistance
ranges.
At the ‘Potentiometer’ (Pot) parameter select to activate the
potentiometer mode.
At the ‘Passive Potentiometer’ (Pot.P) parameter select to activate
the passive potentiometer mode. See section 11.2 for an explanation of
differences between potentiometer and passive potentiometer measure.
Input signal Process
4/20 mA range
0/10 Vdc range
Thermocouples
thermocouple J
thermocouple K
thermocouple N
thermocouple E
thermocouple T
thermocouple R
thermocouple S
thermocouple C
thermocouple B
Pt sensors
Pt100 (2 and 3 wires)
Pt500
Pt1000
Ntc sensors 1
Ntc 44004
Ntc 44005
Ntc 44006
Ntc 44007
Ntc 44008

SERIES I4 · Model I4P
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 15
13.3 Output range
At the ‘Output range’ (out) menu entry, select the output signal range to
4/20 mA (value ‘420’) or to 0/10 Vdc (value ‘010’).
The output signal range selected can be later customized to operate in a
reduced range of signal (see section 13.6).
Output range
13. Conguration menu (cont.)
Resistances
1 KOhm range
100 KOhm range
1 MOhm range
10 KOhm range
Ntc sensors 2
Potentiometer
Passive
potentiometer
Kohms
value
Ntc R25
Ntc ß
Potentiometer signal
Ntc 44030
Ntc 44031
Ntc 44032
Ntc 44034
Ntc 44033
Input signal ranges are also accessible as predened ‘conguration
codes’ (see section 8). The predened ‘conguration codes’ include some
additional input - output ranges that are not available at the ‘Input range’
(InP) list of ranges.
• example: select the ‘0/1500 ºC’ input range for thermocouple J
‘0/1500 ºC=4/20 mA’ or ‘0/1500 ºC=0/10 Vdc’ conguration. To
customize to a smaller range (for example 0/1250 ºC) see section 13.6.
To manually select the output signal see section 13.3. To customize
the output range for a smaller range (for example 0/1500 ºC=8/12 mA
or 0/1500 ºC=1/5 Vdc) see section 13.6.
Passive potentiometer signal

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
16
13. Conguration menu (cont.)
13.4 Temperature conguration
At the ‘Temperature conguration’ (t.cnF) menu, congure parameters
associated with the measure of temperature sensors (Pt sensors,
thermocouples and Ntc).
• at the ‘Temperature units’ (dEG) parameter select the temperature
units of the temperature. Values available are ‘Degrees celsius’ (ºC) or
‘Degrees fahrenheit’ (ºF). The value of the input signal, when indicated
on display, will be scaled as ºC or ºF. All ranges expressed without
decimals, except Pt and NTC sensors, expressed with 1 decimal.
• at the ‘Offset’ (oFFS) parameter congure the number of degrees
to add to the measurement. Values accepted are from -199.9 up to
999.9 (ºC). This is an offset parameter, and applies to the measured
temperature value. It affects the output signal generated by the
instrument, the display value when indicating the ‘input signal value’
and the ‘messages’ function when indicating the ‘input signal value’.
Changing the ‘Temperature units’ (dEG) parameter from ºC to ºF does
not change the ‘offset’ numerical value, which is always expressed in the
ºC. This parameter applies to all temperature sensors (thermocouples,
Pt sensors, Ntc sensors) and does not apply to process signals.
• at the ‘Cold junction’ (t.cJc) parameter congure if the cold junction
of the thermocouple is compensated by the instrument (on, default
option) or the compensation is disabled (oFF). This parameter applies
only to thermocouple sensors.
• at the ‘Pt alpha’ (ALPh) parameter select ‘385’ if your Pt sensor has a
temperature coecient of 0.00385 ºC, or select ‘390’ if your Pt sensor
has a temperature coecient of 0.00390 ºC. This parameter applies
only to Pt sensors (Pt100, Pt500, Pt1000).
Temperature
conguration Temperature units
Degrees celsius
Degrees fahrenheit
Offset
Offset in degrees
Cold junction
Pt alpha
Process
conguration
Field correction
low
‘ok’ ashes while eld
correction is being applied.
when nished, returns to
previous menu entry.
Field correction
alta
13.5 Process conguration
At the ‘Process conguration’ (P.cnF) menu, there is access to the ‘eld
correction’ functions. The ‘eld correction’ functions allow to modify the
‘input signal low’ and ‘input signal high’ parameters of the ‘Advanced
scaling’ menu, based on the actual input signal measured at the input.
This parameter applies to process, resistance and potentiometer ranges,
and it is disabled for temperature ranges (thermocouples, Pt, NTC
ranges).
• select the ‘Field correction low’ (Fc.Lo) function to set the actual
input signal value at the ‘input signal low’ parameter of the ‘Advanced
scaling’ menu. While measuring the value, the message ‘ok’ remains
ashing for 5 seconds. When the measure is completed, the instrument
returns to the ‘Field correction low’ (Fc.Lo) parameter.
• select the ‘Field correction high’ (Fc.hI) function to set the actual
input signal value at the ‘input signal high’ parameter of the ‘Advanced
scaling’ menu. While measuring the value, the message ‘ok’ remains
ashing for 5 seconds. When the measure is completed, the instrument
returns to the ‘Field correction high’ (Fc.hI) parameter.
Example : a pressure transmitter of 0/10 Bar provides a 4/20 mA signal.
The I4P is congured for 4/20 mA input and 4/20 mA output. While setting
up the system, you realize that although the real pressure is stable at 0 Bar,
the output of the instrument is stable at 4.05 mA. With the ‘messages’
function you can check that the input at I4P terminals is also 4.05 mA, and
that the signal provided by the pressure transducer is unable to go below
this value. Apply the ‘eld correction low’ function to force the output to
be 4.00 mA at the actual input signal detected (4.05 mA).

SERIES I4 · Model I4P
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 17
13. Conguration menu (cont.)
Advanced scaling
Input signal low
Input signal high
Output signal low
Output signal high
Process low
Process high
13.6 Advanced scaling
At the ‘Advanced scaling’ (Ad.Sc) menu, the input and output signal
ranges can be customized. When selecting a predened conguration
code, the parameters are congured according to the code selected. The
parameters are accessible for manual conguration:
• at the ‘Input low signal’ (In.Lo) parameter congure the low input
signal value.
• for temperature sensors, this value is expressed in ºC
• for process signals, this value is expressed in x.xx mA or x.xx Vdc
• for resistance signals, this value is expressed in KOhms (1.000 KOhms,
10.00 KOhms, 100.0 KOhms or 1000 KOhms)
• for potentiometer signals, this value is expressed in x.x % of the
potentiometer
• at the ‘Input high signal’ (In.hI) parameter congure the high input
signal value. The units of this parameter value are the same as those
expressed in the previous parameter.
• at the ‘Output low signal’ (ou.Lo) parameter congure the low output
signal value. This value is expressed in x.xx mA or x.xx Vdc.
• at the ‘Output high signal’ (ou.hI) parameter congure the high
output signal value. This value is expressed in x.xx mA or x.xx Vdc.
These four parameters dene the relation between the input and the
output signal (see Table 31), and can be modied independently, to match
the specic input-output relation for your application (see Table 32).
Additionally, a process value can be scaled using the last three
parameters of the ‘Advanced Scaling’ (Ad.Sc) menu entry. The scaled
process value can be accessed through the ‘display information’ function
(see section 13.7) or the ‘messages’ function (see section 13.9). Process
parameters are not available for temperature ranges.
• at the ‘Process low’ (Pr.Lo) parameter, congure the process value
associated to the low input signal value.
Table 31 | EXAMPLE FOR CODE ‘011’ (0/10 VDC=4/20 mA)
Output
4 mA
Input
0 Vdc 10 Vdc
20 mA
Selecting the predened code ‘011’ congures a range of 0/10 Vdc=4/20 mA, and
the values congured are as indicated below:
input_low = 0.00 Vdc output_low = 4.00 mA
input_high = 10.00 Vdc output_high = 20.00 mA
Table 32 | EXAMPLE FOR CUSTOM RANGE (PT100 -25/+40 ºC=1/9 VDC)
Input-25 ºC +40 ºC
Output
1 Vdc
9 Vdc
To congure a Pt100 signal -25/+40 ºC=1/9 Vdc application, select code 177
(-50/+50 ºc=0/10 Vdc) and then congure the parameters below:
input_low = -25 ºC output_low = 1.00 Vdc
input_high = +40 ºC output_high = 9.00 Vdc
Process decimal point
• at the ‘Process high’ (Pr.hI) parameter, congure the process value
associated to the high input signal value.
• at the ‘Process decimal point’ (Pr.dP) parameter, congure the
decimal point position for the process value.

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
18
13. Conguration menu (cont.)
Display
information
Input signal value
Output signal value
Label
Signal percentage
Process value
At the ‘Display information’ (dISP) menu select one parameter to read
on display when the instrument is in ‘normal mode’ of operation. If you
need access to more than one information, see the ‘messages’ function
(see section 13.9) associated to front key ‘LE’ (3).
• select ‘Input signal value’ (InP.S) to read the input signal value and
the measurement units (for example : ‘Inp tc J ºC 528’).
• select ‘Output signal value’ (out.S) to read the output signal value
and the measurement units (for example : ‘Out mA 12.40’).
• select ‘Label’ (LAbL) to read the value congured at congured at the
‘label’ and ‘label2’ parameters (see section 13.10).
• select ‘Process value’ (Proc) to read the process value as scaled at
the process parameters (see section 13.6) (for example: ‘Proc 150.0’).
• select ‘Percentage’ (Prct) to read the percentage of signal, where
‘0’ is the value assigned to the ‘input signal low’ parameter, and ‘100’
is the value assigned to the ‘input signal high’ parameter (see section
13.6) (for example : ‘Prct 23.5’).
Key ‘UP’
(‘force’ menu)
13.7 Display information
The key ‘UP’ (5) at the front of the instrument gives access to a
congurable list of functions (see section 10.4).
At the ‘Key UP (‘force’ menu)’ (K.uP) menu select which functions will
be available when pressing the front key ‘UP’ (5). Select ‘on’ to activate
the desired functions.
• congure ‘Force Low’ (F.Lo) to ‘on’ to activate the ‘Force low’ function
menu entry.
• congure ‘Force High’ (F.hI) to ‘on’ to activate the ‘Force high’ function
menu entry.
• congure ‘Force Set’ (F.SEt) to ‘on’ to activate the ‘Force set’ function
menu entry.
The functions congured to ‘on’ are available at the ‘force’ menu. See
section 10.4 for a description on each function and how to operate them.
13.8 Key ‘UP’ (‘force’ menu)
Force low
Force high
Force set

SERIES I4 · Model I4P
Section INDUSTRIAL . ISOLATED SIGNAL CONVERTERS
www.fema.es 19
13. Conguration menu (cont.)
The ‘Tools’ (tool) menu groups several functions.
• at the ‘Eco mode’ (Eco) parameter, dene the time to wait before the
display is powered off (while in ‘normal mode’ of operation). Default
value is 60 seconds. Congure ‘0’ to disable the function and maintain
the display always on.
• at the ‘SOS mode’ (SoS) parameter select ‘on’ to activate the output
signal to a predened value. Select the value from 0 to 100% of the
active output range (4/20 mA or 0/10 Vdc). To deactivate the ‘SOS
mode’ select ‘oFF’. See section 6 for more information on the ‘SOS
mode’.
• at the ‘Label’ (LAbL) parameter, dene an alphanumerical value to
be displayed on the display, when the instrument is in ‘normal mode’
of operation, or at the ‘messages’ function when the key ‘LE’ (3) is
pressed. The label can be used to identify the instrument with its
own internal factory code. If more than four characters are needed,
congure the ‘Label 2’ (LbL.2) parameter. The total label value is
the characters at ‘label’ followed by the characters at ‘label2’. For
additional information and a list of available characters, see section 7.
• at the ‘On error’ (on.Er) parameter, congure the behavior of the
output signal, in case of error at the input signal (see section 16).
• select ‘Output to high’ (to.hI) to force the output signal to overrange
to maximum value
• select ‘Output to low’ (to.Lo) to force the output signal to
underrange to minimum value
• select ‘Standard output’ (Stdr) to overrange output signal to
maximum value in case of input signal overrange, and to underrange
output signal to minimum value in case of input signal underrange.
13.10 ‘Tools’ menu
Key ‘LE’
(messages function)
Input signal value
Output signal value
Process value
Label
Percentage
The key ‘LE’ (3) at the front of the instrument gives access to a
congurable set of information messages.
At the ‘Key LE (messages function)’ (K.LE) menu, select the informations
to be displayed when the front key ‘LE’ (3) is pressed (see section 10.5).
Select ‘on’ to activate each information.
• congure ‘Input signal value’ (InP.S) to ‘on’ to see the actual input
signal value and units (for example: ‘Inp tc J ºC 528’).
• congure ‘Output signal value’ (out.S) to ‘on’ to see the actual output
signal value and units (for example: ‘Out mA 08.3’)
• congure ‘Label’ (LAbL) to ‘on’ to read the value congured at the
‘label’ and ‘label2’ parameters (see section 13.10).
• congure ‘Process value’ (Proc) to ‘on’ to read the process value as
congured at the process parameters (see section 13.6) (for example: ‘Proc
1500’).
• congure ‘Percentage’ (Prct) to ‘on’ to see the actual percentage
of signal, where ‘0’ is the value assigned to the ‘input signal low’
parameter, and ‘100’ is the value assigned to the ‘input signal high’
parameter (see section 13.6) (for example: ‘Prct 23.5’).
When more than one parameter is set to ‘on’, values will be displayed
sequentially, in the same order as they are listed in the menu, with a
middle dash ‘-’ between them. When all information has been displayed,
the instrument returns to ‘normal mode’ of operation.
13.9 Key ‘LE’ (‘messages’ function)
‘Eco’ mode 5 to 255 seconds (0 disabled) (60 sec. default)
Tools
Label
Alphanumerical
Label 2
Alphanumerical
SOS mode % of output
On error
Output to high
Output to low
Standard output

FEMA · MANUFACTURING FOR INDUSTRIAL AUTOMATION
20
13. Conguration menu (cont.)
Average lter 0 to 100
Password
Version
Factory reset
‘Dead band’ 0.0 to 100.0%
• at the ‘On ‘SQ’’ (on.Sq) parameter, congure the behavior of the
output signal when the operator is inside ‘conguration menu’ (see
section 10.3).
• select ‘Output to high’ (to.hI) to force the output signal to overrange
to maximum value
• select ‘Output to low’ (to.Lo) to force the output signal to
underrange to minimum value
• select ‘Hold output’ (hoLd) to hold the output signal while the
operator remains inside ‘conguration menu’.
• at the ‘Power lter’ (P.FLt) parameter, select a lter for specic power
frequency rejection. The lter selection has an effect on the response
times (see section 12).
• select ‘No lter’ (nonE) to disable frequency rejection lters. This
enables the fastest response time.
• select ‘50 Hz lter’ (50.hZ) to enable rejection to 50 Hz frequency.
• select ‘60 Hz lter’ (60.hZ) to enable rejection to 60 Hz frequency.
• select ‘50 and 60 Hz lter’ (both) to enable rejection to both 50 Hz
and 60 Hz frequencies. This is the slowest response time.
• at the ‘Average lter’ (AVr) parameter, congure the recursive lter
to be applied to measured input signal. The lter can be used to reduce
oscillations on noisy signals. Congure the lter strength between
‘0’ and ‘100’. The lter is stronger with higher values. Increasing the
strength of the lter slows the response speed of the instrument.
Value ‘0’ disables the lter.
• at the ‘Dead band’ (d.bnd) parameter set a value between ‘0.0’ %
and ‘100.0’ %. This is a percentage of the ‘input signal high’ parameter
congured at the ‘Advanced scaling’ section. Input signals below this
value, are treated as a ‘0’. This parameter applies to process, resistance
and potentiometer ranges, and it is disabled for temperature ranges
(thermocouples, Pt, Ntc).
example : instrument congured with code ‘011’ (0/10 Vdc = 4/20 mA)
and ‘input signal high’ parameter modied to 8 Vdc for an effective
input - output relation of ‘0/8 Vdc = 4/20 mA’. Congure the ‘Dead band’
parameter to ‘1.0’ to set a dead band value of 0.08 Vdc. All signals
below 0.08 Vdc will be treated as 0 Vdc, and the output will be 4 mA.
• the ‘Version’ (VEr) parameter informs about the rmware version
running in the instrument.
• at the ‘Password’ (PASS) parameter dene a 4 digit code to
block access to the ‘conguration menu’. Activate the password to
prevent access to the instrument conguration by non authorized
personnel. To activate the ‘Password’ function select ‘on’, enter the
code and validate. The password will be requested when accessing
the ‘conguration menu’. The password does not block access to the
‘force’ menu. To deactivate the password, set the password value to
‘0000’.
• at the ‘Factory reset’ (FAct) parameter select ‘yes’ to activate the
default factory conguration (see section 15 for a list of factory
default parameters).
Power lter
No lter
50 Hz lter
60 Hz lter
50 and 60 Hz lter
On ‘SQ’
Output to high
Output to low
Hold output