NIVELCO UNICONT PDF 01-2 Series Assembly instructions

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PDF – loop indicator and
converter to HART
INSTALLATION AND PROGRAMMING MANUAL
3rd Edition
Manufacturer:
NIVELCO Process Control Co.
1043 Budapest, Dugonics u. 11.
Tel: [phone] ♦Fax: [phone]
e-mail: [email protected] ♦www.nivelco.com

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CONTENTS
1. INTRODUCTION ........................................................................................................................................................................................... 5
2. ORDER CODES............................................................................................................................................................................................5
3. TECHNICAL DATA....................................................................................................................................................................................... 6
3.1 GENERAL DATA........................................................................................................................................................................................ 6
3.2 DIMENSIONS ............................................................................................................................................................................................ 7
3.3 ACCESSORIES.......................................................................................................................................................................................... 8
4. INSTALLATION AND ELECTRIC CONNECTION .......................................................................................................................................9
4.1 WIRING.................................................................................................................................................................................................... 9
4.2 SAFETY REGULATIONS FOR THE EEX CERTIFIED UNITS............................................................................................................................. 12
5. PUTTING INTO OPERATION, PROGRAMMING.......................................................................................................................................12
5.1 DEFAULT ............................................................................................................................................................................................... 13
5.2 DISPLAY OF THE SAP-202 AND KEYS OF THE UNIT ................................................................................................................................... 14
5.3 PROGRAMMING ...................................................................................................................................................................................... 14
5.3.1. STEPS OF PROGRAMMING ......................................................................................................................................................................................15
5.3.2. PARAMETERS –DESCRIPTION AND PROGRAMMING ...................................................................................................................................................17
5.4 ERROR INDICATIONS............................................................................................................................................................................... 23
5.4.1. VALID LED IS BLINKING AND A MESSAGE OF ERRXAPPEARS ON THE DISPLAY ...........................................................................................................23
5.4.2. VALID LED AND THE DISPLAYED VALUE IS BLINKING................................................................................................................................................23
5.4.3. ERROR INDICATION ON THE OUTPUT CURRENT (FOR 3-WIRE MODELS ONLY) ......................................................................................................23
6. MAINTENANCE AND REPAIR................................................................................................................................................................... 24
7. STORAGE................................................................................................................................................................................................... 24

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Thank you for choosing NIVELCO instrument
We are sure that you will be satisfied throughout its use!
1. INTRODUCTION
The UNICONT PDF-4/501 and PDF-401-6/A/C Ex devices are 2-wire on-site indicators that can be inserted into a 4 … 20 mA current loop without the need for
additional power supply. Since the displayed value is proportional to the input, the units are suitable for indication of temperature, pressure, level, etc. values,
the information carried by the loop current. The customer can program the engineering units and the indication range.
The HART capable Unicont PF-4/501-4 and PF-401/8/B/D Ex 3-wire process indicators require additional power supply. Besides displaying the loop
current or the process values, these units convert input current to HART signals and so enable devices that have analogue outputs only to be integrated into
HART multidrop systems. The ratio between the input and output current can be programmed.
The intelligent electronics and HART communication enables versatile signal processing and remote programming. The software uses the Universal HART
commands No. 1-3, 6, 7, 11-18 and device specific commands No128-132, 135 and 139 of the HART Revision 5.
Robust enclosure makes applications under harsh conditions also possible. Explosion proof versions are available for hazardous environments.
2. ORDER CODES
UNICONT P F– 0 1– *
FUNCTION CODE HOUSING CODE OUTPUT /EXCODE
With display D Aluminium 4 Display 2
Without display T Plastic 5 4 ... 20 mA + HART* 4
Display / EEx ia 6
4 ... 20 mA + HART / EEx ia* 8
Display /EEx d A
Not all combinations are possible! 4 ... 20 mA + HART / Eex* d B
Display / EEx d ia* C
Ex certified units come with aluminium housing only.
* The order code of an Ex version should end in “Ex” 4 ... 20 mA + HART / EEx d ia* D
The models with display outputs are 2-wire units.

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3. TECHNICAL DATA
3.1 GENERAL DATA
TYPE
PDF- 01-2
PDF-401-6 EX
PDF-401-A EX
PDF-401-C EX
PF- 01-4
PF-401-8 EX
PF-401-B EX
PF-401-D EX
Powering 2-wire 3-wire
Input Current loop
Range 3.6 … 22 mA 0 … 22 mA
Display/indication 6-digit LCD, engineering units and bargraph
Range of displayed value -9999 … 29999
Engineering units (programmable) mA, ºC, ºF, %, m, cm, in ,ft, l, m3, gal, ft3
Displayed process values (programmable) DIST (distance), LEV (level), VOL (volume/content)
Ambient temperature Ordinary and EEx ia devices: -40ºC…+70ºC, with display module: -25ºC…+70ºC ; EEx d és EEx d ia devices: -40ºC…+70ºC, with display module: -20ºC…+70ºC
Accuracy ± 0,1 % for displayed values over 10000
Temperature coefficient ± 0.05 % / 10°K
Output ----
4…20 mA and/or HART
for 4…20mA current limit values: 3.9…20.5 mA
terminal resistor for HART Rtmin = 250 Ω
Error indication on the current output ---- Output = 3.8 or 22 mA
Voltage at the terminals ---- 10 V…36 V*
Load resistance ---- Rt≤(Ut-10V) / 0,022A (Ut supply voltage)
Voltage drop < 1.6 V < 1 V
Overvoltage capability 150 mA 200 mA
Damping 3 s, 5 s, 10 s or 20 s
Electric protection Class III
Ingress protection IP67
Electric connection Through M20x1.5 cable gland, shielded, multistrand, twisted cable of ∅6…12 mm (or ∅7…13mm for EEx- ia, and 8…12mm for EEx-d)
wire cross section 0,25 … 1,5 mm2
Housing Paint coated aluminium (öAlSi12) or PBT glass fibre reinforced
Mass 1 Aluminium housing appr. 0.9 kg, plastic housing appr. 0.55 kg
*For PF-401-8EX and PF-401-DEX units see table of ‘Additional data for Ex certified versions’

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ADDITIONAL DATA FOR EX CERTIFIED VERSIONS
TYPE PDF –401 –6EXPDF –401 –AEXPDF –401 –CEX
Ex protection Intrinsically safe Flame proof Flame proof, intrinsically safe
Ex marking II 1 G EEx ia IIC T6 II 2 G EEx d IIB T6 II 1/2 G EEx d ia IIB T6
Intrinsical safety data Ui= 2,1 V Ii= 140 mA
Ci≈0 nF Li< 200
μ H – Ui= 2,1 V Ii= 140 mA
Ci≈0 nF Li< 200
μ H –
Cable gland Metal M 20 x1.5 cable diameter 7…13 mm Metal M 20 x1,5 cable diameter: 8 … 12 mm
Housing Paint coated aluminium
TYPE PF–401 –8EXPF–401 –BEXPF–401 –DEX
Ex protection Intrinsically safe Flame proof Flame proof, intrinsically safe
Ex marking II 1 G EEx ia IIB T6 II 2 G EEx d IIB T6 II 1/2 G EEx d ia IIB T6
Intrinsical safety data Ui= 30 V Ii= 140 mA Pi= 1,0 W
Ci< 20 nF Li< 200
μ H – Ui= 30 V Ii= 140 mA Pi= 1,0 W
Ci< 20 nF Li< 200
μ H
Cable gland Metal M 20 x1,5 cable diameter 7…13 mm Metal M 20 x1,5 cable diameter: 8 … 12 mm
Housing Paint coated aluminium
3.2 DIMENSIONS
Type A
Ordinary,
EEx ia ~137mm
EEx d, EEx d ia ~145mm
Dimensions in mm
Figure 1.
102
51.0
4.2
108.0
120.0
A
4.0

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3.3 ACCESSORIES
Ordinary, EEx ia:
– Installation and programming manual
– Warranty Card
– Declaration of Conformity
– 2 cable glands
– Sticker set of engineering units
EEx d, EEx d ia:
– Installation and programming manual
– Warranty Card
– Declaration of Conformity
– Sticker set of engineering units
HART capable units
- EView Light software on CD-ROM (in addition)

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4. INSTALLATION AND ELECTRIC CONNECTION
The devices are suitable for working in closed areas or they can be used in open-air applications, too. Installation location should be selected so that proper
space is available for handling, programming and checking the display. Mounting the units on the wall or to a support can be done with using 2pcs of M4 nuts.
4.1 WIRING
•2-wire indicators are used in 4… 20 mA current loops. They do not require separate power supply.
•3-wire devices are powered with 10…36 VDC through the output.
•Current values on the terminals should not exceed overload capability limits. *
•Wiring should be made with shielded cable, specified under ‘Technical Data’.
•After removal of the cover of the housing and the display module the screw terminals can be accessed. ** Cover of the flame proof housing can be
removed after unhooking the safety clamp. Device should not be under power.
•After wiring and programming the cover should be screwed to tightness of the sealing. The safety clamp of the flameproof cover should be fastened.
*Max. 150 mA for 2-wire and max. 200 mA for 3-wires devices.
** Devices should be grounded by using their grounding screws.
!
The unit may be damaged by electrostatic discharge (EDS) at its terminal, thus the precautions commonly used to avoid
electrostatic discharge e.g. by touching a properly grounded point before removing the cover of the enclosure should be applied.
Transmitter Ex
4-20mA 4-20mA
PDF- 401-6/A/C Ex
Us
6
1
E
x
E
x
Ex
Figure 2. Wiring of a 2-wire Unicont in the current loop of a transmitter
R 250≥ Ω
HART
Us
4-20mA
P F-401-8/B/D Ex
Ex Ex
6
1
Transmitter Ex
Figure 3. Wiring of a HART capable (3-wire) Unicont
in the current loop of a transmitter
Shielding should be grounded at one point.

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HART
Us
P F - 01-4
4-20mA
()0-20mA
Transmitter
66
R 250 ≥ Ω
Figure 4. Wiring of a HART capable (3-wire) Unicont in the current loop of a 4-wire transmitter.
HART
L+
L-
SH
+Us
4-20mA
4-20mA
Transmitter Ex
1
P F- 01-8/B/D Ex
Ex
Ex
HART
6
1
6
1
Transmitter Ex
2
R = 250 Ω
P F- 01-8/B/D Ex
Multicont
Ex
Figure 5. Wiring of 3-wire Uniconts with Multicont controller and 2-wire transmitters

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HART
L+
L-
SH
+Us
Multicont
P F- 01-4
4-20mA
()0-20mA
4-20mA
()0-20mA
HART
6
61
1
P F- 01-4
Transmitter
1
Transmitter
15
R = 250 Ω
Figure 6. Wiring of 3-wire Uniconts with Multicont controller and 4-wire transmitters
16
R=5
Figure 7. Internal wiring of the 2-wire Unicont
16
R=10
I +
I-
Figure 8. Internal wiring the of 3-wire Unicont

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4.2 SAFETY REGULATIONS FOR THE EEX CERTIFIED UNITS
Intrinsically safe units with EEx ia IIC, EEx ia IIB or EEx d ia IIB markings can only be used in duly certified intrinsically safe loops with the previously given
technical data.
Devices should be grounded by connecting their grounding screws to the equipotential system.
5. PUTTING INTO OPERATION, PROGRAMMING
Lighting of the VALID LED indicates that the Unicont, installed and wired
correctly, will operate according to the Manufacturer’s settings (see 5.1. Default).
The device operates in MEASUREMENT mode. It is indicated by the format of
the displayed value and that the PROG display is not lit.
Display
socket
Screw terminal
Grounding
1/2” NPT1/2” NPT
M 20 x 1,5
M 20 x 1,5
COM LED

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5.1 DEFAULT
Manufacturer’s settings are the following:
The percental (%) value shown on the display is proportional to the input (4 mA→
0%, 20 mA →100.0%).
Damping: 3 s
Noise suppression frequency: 50 Hz
Bargraph indication is proportional to the input ( 0/4 mA→0%, 20 mA →100.0%).
The output of the 3-wire models can be 4…20 mA current and / or HART signal
During operation:
COM LED flashes during HART communication
While pressing the key the input current appears on the display of the 2-wire
models.
While pressing the key the output current appears on the display of the 3-wire
models.
Programming
keys
Programming
keys

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5.2 DISPLAY OF THE SAP-202 AND KEYS OF THE UNIT
Symbols on the screen
•DIST – distance displayed (when ON)
•LEV –level displayed (when ON)
•VOL – volume/content displayed (when ON)
•% – percent displayed (when ON)
•mA and °C current and temperature displayed
(when ON)
•– arrow (points to the relevant engineering unit)
•PROG – programming is in progress (when flashing)
Symbols and sign on the frame
•M– metric system
•US – imperial engineering unit system
ºF, m, cm, in ,ft, l, m3, gal, ft3
LED
VALID lights up during operation
COM flashes during HART communication
5.3 PROGRAMMING
Uniconts can be programmed by programming keys and the procedure can be followed on the display. HART capable models can also be programmed remotely
via the MultiCONT controller or with the aid of a HART modem and EView software installed on a PC. During on site programming remote programming is not
possible and vice versa.
Adjustment of the Unicont to the conditions of the actual application can be carried out by programming the parameters. If the unit has already been
programmed it is going to work according to the last setting.
The unit will work during programming in accordance with the parameters set previously.
The new, modified parameters will only be effective after returning to Measurement Mode.
If the transmitter is left in Programming Mode by mistake, it automatically returns to Measurement Mode after 3 minutes and is going to operate with the
parameters entered during the last completed programming cycle.

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5.3.1. STEPS OF PROGRAMMING
‘Double key pressing’ (pressing two keys simultaneously) has to be used to get into and out of PROGRAMMING mode. It is also used in programming mode.
This is represented in the manual with the symbols of the two keys and the ‘+’ sign in between them. That is:
E
+ (getting into PROGRAMMING mode).
This procedure is should be carried out as follows: press the first key (
E
) and keep it pressed while pressing the key shown after the ‘+’ sign ( ). The two
keys should be kept pressed simultaneously for about 3s (until the display changes).
After double key pressing of
E
+ the device gets into PROGRAMMING mode and ‘PROG’ symbol is blinking. One of the following two images appears and
parameters can be changed.
y : xxxxx
y one digit parameter address (0, 1, … 9)
xxxxx five characters after the colon “:”
Bargraph
possible
indications
in place of X
(– dark)
X
–
1
2
–
X
0
:
:
9
X
0
:
:
9
X
0
:
:
9
X
0
:
:
9
yy : xxxx
yy two digit parameter address (10, 11, … 19)
dcba four characters after the colon “:” (during programming parameter value “a” blinks first!)
Bargraph
When ‘PROG’ is blinking programming can be performed. Since modification of P10 makes the unit restart and reset DEFAULT values it is suggested to begin
programming with checking and / or changing this parameter.
When ‘PROG’ is lit, parameters are being protected by secret code and can only be read out. Applying this code (See P19) provides protection against
unauthorised or unintended parameter modifications.

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OPERATION OF THE PROGRAMMING KEYS
PRESSING KEY(S) OPERATION
E
+ *
(press for minimum 3 sec)
Getting in and out of PROGRAMMING and MEASUREMENT mode (both directions).
(Returning to Measurement mode means saving of the modifications)
or In MEASUREMENT mode input or output current appears on the screen of the 2-wire or 3-wire model respectively
while Parameter address blinking while Parameter value blinking
E
to select parameter address and go to parameter value to save parameter value and return to parameter address
+ Cancel all modifications of the actual programming procedure.
CANCEL will be displayed for warning.
Neglect value modification of the relevant parameter (if
any) and return to the parameter address. CANCEL will
be displayed
+ Reset all parameter values to default.
LOAD is be displayed for warning
Reset default value of the relevant parameter.
LOAD will be displayed for warning
+
GET VALUE – function for automatic setting of P0 and P1.
Actual/measured value will be offered as the value to be
programmed. After pressing
E
for saving the value,
‘SET’ message confirms the modification.
To have the next character to the left blinking (to be able to change that character)
/ Modify the blinking digit (increase, decrease, minus sign) or scroll up/down … 8, 9, “ –“ ,0, 1, 2, …
Make sure that
E
is pressed first!
Remarks:
Double key pressing is indicated by ‘+’
If, after pressing
E
, blinking does not jump over from the parameter address to the parameter value, then this means that
•the parameter is either read-out type, or
•the secret code prevents the modification (see P19)
If the modification of the parameter value is not accepted i.e. the parameter value keeps blinking after pressing ENTER
E
•the modified value is either out of range, or
•the entered code is not valid

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5.3.2. PARAMETERS –DESCRIPTION AND PROGRAMMING
Attention! Before programming it is suggested to read the description of parameter P10 carefully!
P0: - - - a Setting input current (Ia) that is to be assigned to displayed value (Da) See Figure 9, 10 and 11 FACTORY DEFAULT: 4 mA
P1: - - - a Setting input current (Ib) to be assigned to displayed value (Db) FACTORY DEFAULT: 20 mA
The current value can be entered in P0 and P1 manually
For instance, entering 5.6 mA in P0 should be performed as shown below:
1. Press
E
+ to get into PROGRAMMING mode
2. Press to go to P0
3. Press
E
to go to the parameter value
4. Press / / to adjust the display to 5.6
5. Press
E
+ to return to MEASUREMENT mode
If the actual current value is to be entered in P0 or P1 it can automatically be set by the GET VALUE function. To do so the above described
procedure should be performed, but pressing +(instead of / / ) (step 4.). Successful setting is indicated by the message ‘SET’
displayed.
Remarks:
If the input current range is set for 4 … 20 mA, than the value of P11 can not be set below 4 mA in P0 and the value of P1 can not exceed 20 mA.
An input current value outside of this range would make VALID LED and current value display blinking.
P2: Setting displayed value (Da) to be assigned to input current Ia See Figure 9, 10 and 11 FACTORY DEFAULT: 0.0
P3: Setting displayed value (Db) to be assigned to input current Ib FACTORY DEFAULT: 100.0
P4: Setting output current pertaining to the input current Ia (for 3-wire models only) FACTORY DEFAULT: 4 mA
P5: Setting output current pertaining to the input current Ib (for 3-wire models only) FACTORY DEFAULT: 20 mA

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0
Da
-9999
Db
29999
D
0
3,85mA Ia
21mA
Iin (mA)
Displayed
value
Input
current
Figure 9. Display curve of 2-wire models
0
Da
-9999
Db
29999
D
0
3,85mA 3,9mA Ia
20,5mA
21mA
Iin (mA)
Displayed
value
Input
current
Figure10. Display curve of 3-wire models with input range set for 4…20 mA
0
Da
-9999
Db
29999
D
0
20,5mA
21mA
Iin (mA)
Ia
Displayed
value
Input
current
Figure 11. Display curve of 3-wire models with input range set for 0…20 mA

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P9: - - - a Current generator test (for 3-wire models only)
In this parameter the actual current output is displayed. Going to the parameter value the output current of 3.6…22 mA can be set by the keys
and . The current value entered this way should conform with the output current measured with an ammeter.
P10: - - - a Setting the decimal point FACTORY DEFAULT: 0002
Important remark: modification of P10 represents resetting parameter values to the FACTORY DEFAULT. Thus, it is suggested that
programming starts with knowing the range of values to be displayed and programming P10 first.
a Position of decimal point
0 xx.xxx
1 xxx.xx
2 xxxx.x
3 xxxxx

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P11: dcba Setting range,* damping, noise suppression, error indication on the output current * FACTORY DEFAULT: 0000
aRange can be selected with the 3-wire models for 4…20 mA or 0…20 mA . Setting is important in respect to the output current error
indication.
bDamping can be used to reduce unwanted fluctuation of the displayed value
c Noise suppression is for eliminating possible disturbance coming from the mains
d Error indication on the current output of the 3-wire models is used to indicate error signals arriving as input current and the error of the
Unicont itself according the chart below. Simultaneous occurrence of both errors is going to result output current to be the error indication of
the Unicont.
*For 3-wire models only
Attention: character „a” is at the right end (this is the first to blink)
a Range selection d Error indication on the current output
0 4…20mA Error indication on the input current*
1 0…20mA
Unicont error
Current > 20 mA Current < 4 mA
0 3.8 mA
b Damping 1 3.8 mA 22 mA
0 3 s 2 3.8 mA
1 5 s 3
3.8 mA
22 mA 22 mA
2 10 s 4 3.8 mA
3 20 s 5 3.8 mA 22 mA
6 3.8 mA
cNoise suppression 7
22 mA
22 mA 22 mA
050 Hz
160 Hz
*- If an error indication of 22 mA arrives (from a transmitter) to the input of the Unicont, with settings 5 (under d) than it means that the current
output of the Unicont is 3.8 mA (and with setting 6 it is 22 mA)
- If an error indication of 3.8 mA arrives (from a transmitter) to the input of the Unicont, with settings 1 (under d) than it means that the current
output of the Unicont is 22 mA (and with setting 6 it is 3.8 mA mA)