PR 5725 User manual

5725
Programmable
frequency indicator
No. 5725V102-UK
From ser. no. >121435001

1651
PR electronics A/S tilbyder et bredt program af analoge og digitale
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5725V102-UK 1
PROGRAMMABLE FREQUENCY INDICATOR
5725
CONTENTS
Warning....................................................................................................... 2
Safety instructions................................................................................. 3
Front and back layout........................................................................... 5
Application................................................................................................. 6
Technical characteristics...................................................................... 6
Mounting / installation ......................................................................... 7
Application................................................................................................. 8
Order: 5725............................................................................................... 9
Electrical specifications........................................................................ 9
Sensor error indication, inside and outside range .................... 13
Connections .............................................................................................. 15
Block diagram........................................................................................... 16
Configuration / operating the function keys............................... 17
Password protection.............................................................................. 18
Additional 5725 features (from s/n > 121435001)................ 18
Routing diagram for 5725A............................................................... 19
Routing diagram for 5725D............................................................... 21
Scrolling help texts................................................................................ 23
Graphic depiction of the relay function setpoint....................... 25

2 5725V102-UK
SYMBOL IDENTIFICATION
Triangle with an exclamation mark: Warning / demand. Potentially lethal
situations.
The CE mark proves the compliance of the device with the essential
requirements of the directives.
WARNING
This device is designed for connection to hazardous electric volt-
ages. Ignoring this warning can result in severe personal injury
or mechanical damage. To avoid the risk of electric shock and fire,
the safety instructions of this manual must be observed and the
guidelines followed. The specifications must not be exceeded,
and the device must only be applied as described in the follow-
ing. Prior to the commissioning of the device, this manual must
be examined carefully. Only qualified personnel (technicians)
should install this device.
If the equipment is used in a manner not specified by the
manufacturer, the protection provided by the equipment may be
impaired.
WARNING
Until the device is fixed, do not connect hazardous voltages to
the device.
The following operations should only be carried out on a discon-
nected device and under ESD safe conditions:
Troubleshooting the device.
Repair of the device must be done by PR electronics A/S only.
GENERAL
HAZARD-
OUS
VOLTAGE

5725V102-UK 3
SAFETY INSTRUCTIONS
DEFINITIONS
Hazardous voltages have been defined as the ranges: 75 to 1500 Volt DC, and 50
to 1000 Volt AC.
Technicians are qualified persons educated or trained to mount, operate, and also
troubleshoot technically correct and in accordance with safety regulations.
Operators, being familiar with the contents of this manual, adjust and operate the
knobs or potentiometers during normal operation.
RECEIPT AND UNPACKING
Unpack the device without damaging it. The packing should always follow the
device until this has been permanently mounted. Check at the receipt of the
device whether the type corresponds to the one ordered.
ENVIRONMENT
Avoid direct sunlight, dust, high temperatures, mechanical vibrations and shock,
as well as rain and heavy moisture. If necessary, heating in excess of the stated
limits for ambient temperatures should be avoided by way of ventilation.
All devices fall under Installation Category II, Pollution Degree 2, and Insulation
Class II.
MOUNTING
Only technicians who are familiar with the technical terms, warnings, and
instructions in the manual and who are able to follow these should connect the
device.
Should there be any doubt as to the correct handling of the device, please contact
your local distributor or, alternatively,
PR electronics A/S
www.prelectronics.com
Mounting and connection of the device should comply with national legislation
for mounting of electric materials, i.e. wire cross section, protective fuse, and
location. Descriptions of Input / Output and supply connections are shown in the
block diagram and side label.

4 5725V102-UK
The following apply to fixed hazardous voltages-connected devices:
The max. size of the protective fuse is 10 A and, together with a power
switch, it shall be easily accessible and close to the device. The power
switch shall be marked as the disconnecting unit for the device.
UL INSTALLATION REQUIREMENTS
For use on a flat surface of a type 1 enclosure.
Use 60/75°C copper conducters only.
Enclosure rating (face only)........................... Type 4X, UL50E
Max. ambient temperature ............................ 60°C
Max. wire size, pins 41...46........................... AWG 30-16
Max. wire size, others ...................................... AWG 30-12
UL file number .................................................... E248256
CALIBRATION AND ADJUSTMENT
During calibration and adjustment, the measuring and connection of external
voltages must be carried out according to the specifications of this manual. The
technician must use tools and instruments that are safe to use.
NORMAL OPERATION
Operators are only allowed to adjust and operate devices that are safely fixed in
panels, etc., thus avoiding the danger of personal injury and damage. This means
there is no electrical shock hazard, and the device is easily accessible.
CLEANING
When disconnected, the device may be cleaned with a cloth moistened with
distilled water.
LIABILITY
To the extent the instructions in this manual are not strictly observed, the
customer cannot advance a demand against PR electronics A/S that would
otherwise exist according to the concluded sales agreement.

5725V102-UK 5
FRONT AND BACK LAYOUT
Picture 1: Front of 5725.
Picture 2: Back of 5725.

6 5725V102-UK
PROGRAMMABLE FREQUENCY INDICATOR
5725
• Measures NPN, PNP, Contact, NAMUR, SO, Tacho and
TTL sensors
• Programmable frequency input span of 0.001 Hz to 50 kHz
• The 5725D has two SPDT relays and one analog output
• Easy to read 4 digit, 14 segment LED display with scrolling
help text
• Universally powered by 21.5…253 VAC or 19.2… 300 VDC
Application
• The 5725 measures, scales, and displays frequency signals found in many pro-
cess speed and flow rate applications.
• The indicator can measure the period of the frequency, useful for displaying
the elapsed time between events.
• The 5725D has two SPDT setpoint contacts and a 0/4...20 mA output for pro-
cess control.
• The installed display provides IP65 environmental sealing, and additional pro-
tection is provided by the optional 8335 splash proof cover.
Technical characteristics
• 4 digit display w/13.8 mm high, 14 segment LED digits and adjustable decimal
point.
• Indicator is scalable from -1999 to 9999
• Scrolling help text makes programming easy.
• Built-in excitation source for measuring NPN, PNP, NAMUR and SO sensors.
• Fast response time of 1 cycle + 100 mS, and excellent accuracy of better than
0.05% of selected range.
• The analog output current on the 5725D can be dampened from 0.1 to 60
seconds, and can handle up to 800 Ohms loop load.

5725V102-UK 7
• The 5725 meets NAMUR NE21 recommendations, for high performance in
harsh EMC environments.
• High 2.3 kVAC galvanic isolation, and an excellent signal/noise ratio of
> 60dB.
Mounting / installation
• Easy to mount 1/8 DIN (48 x 96 mm) panel meter with IP65, (type 4X) sealing.
• Approved for marine applications.
• Fully push-button programmable.
• Password protected.

-
+
26
25
24
23
22
21
12
11
1 2
S0
44
43
42
41
∼
∼
∼TTL
1 2
32
31
1 2
8 5725V102-UK
APPLICATION
Output signals:
Relay 1
Analogue, 0/4...20 mA
Special trig
current & voltage
NAMUR Tacho
Supply:
21.6...253 VAC
or
19.2...300 VDC
S0 PNP NPN Contact
(NPN)
TTL
Input signals:
+ Sup 5...17 V
+ Input
Input gnd
Tacho
Relay 2
+ Supply + Supply

5725V102-UK 9
Electrical specifications
Environmental conditions:
Specifications range............................................... -20°C to +60°C
Storage temperature .............................................. -40°C to +85°C
Calibration temperature ........................................ 20...28°C
Relative humidity..................................................... < 95% RH (non-cond.)
Protection degree.................................................... IP20
Installation in pollution degree 2 & measurement / overvoltage category II.
Mechanical specifications:
Dimensions (H x W x D)......................................... 48 x 96 x 120 mm
Cutout dimensions .................................................. 44.5 x 91.5 mm
Protection degree (mounted in panel)............ IP65 / Type 4X, UL50E
Weight .......................................................................... 230 g
Wire size, pin 11-12 & 41-44, max.................. 1 x 1.5 mm2/
AWG 30...16 stranded wire
Wire size, others, max............................................ 1 x 2.5 mm2/
AWG 30...12 stranded wire
Terminal connection ............................................... Spring-cage
Vibration...................................................................... IEC 60068-2-6 Test FC
2...13.2 Hz........................................................... ±1 mm
13.2...100 Hz ..................................................... ±0.7 g
Order: 5725
Type Version
5725 Standard.......................: A
Analog output and 2 relays .....: D
8335 = Splash proof cover
Accessories:

10 5725V102-UK
Common electrical specifications:
Supply voltage, universal..................................... 21.6...253 VAC, 50...60 Hz
or 19.2...300 VDC
Power consumption, 5725A / 5725D ............. < 2.8 W / < 3.6 W
Isolation voltage, test / operation.................... 2.3 kVAC / 250 VAC
Signal / noise ratio .................................................. > 60 dB
Input specifications:
Frequency range,
f/I conversion function................................ 0.001 Hz to 50 kHz
Low cut off frequency (default value)............ 0.0009 Hz
Low cut off frequency, (LCOF=YES) ................. 0.5 Hz (2 s)
Max. frequency, with input filter ON............... 50 Hz
Time range, period time function................... 999.9 s to 20 µs
Low cut off period time ........................................ 1111 s
Min. period time with input filter ON .............. 20 ms
Response time (0...90%, 100...10%) ................. < 1 period + 100 ms
Input types:
NAMUR input - acc. to EN 60947-5-6:
Trig-level LOW........................................................... ≤ 1.2 mA
Trig-level HIGH.......................................................... ≥ 2.1 mA
Input impedance ...................................................... 1 kΩ / < 1.5 nF
Breakage detection................................................. ≤ 0.1 mA
Short-circuit detection........................................... ≥ 6.9 mA
Sensor supply - pin 44, fixed.............................. 8.3 V
Accuracy values
Specification
Absolute
accuracy
Temperature
coefficient
Input to Display & Relays ≤±0.05%
≤±0.01% / °C
Input to Analog Output ≤ ±0.1%
EMC immunity influence...................................................... < ±0.5% of span
Extended EMC immunity:
NAMUR NE 21, A criterion, burst ..................................... < ±1% of span

5725V102-UK 11
Tacho input:
Trig-level LOW........................................................... ≤ - 50 mV
Trig-level HIGH.......................................................... ≥ + 50 mV
Input impedance ...................................................... ≥ 100 kΩ / < 1.5 nF
Max. input voltage .................................................. 80 VAC pp
Sensor supply - pin 44, programmable .......... 5...17 V / 20 mA
NPN / PNP input:
Trig-level LOW........................................................... ≤ 4.0 V
Trig-level HIGH.......................................................... ≥ 7.0 V
Input impedance ...................................................... 3.48 kΩ / < 1.5 nF
Sensor supply - pin 44, programmable .......... 5...17 V / 20 mA
TTL input:
Trig-level LOW........................................................... ≤ 0.8 VDC
Trig-level HIGH.......................................................... ≥ 2.0 VDC
Input impedance ...................................................... ≥ 100 kΩ / < 1.5 nF
Sensor supply - pin 44, programmable .......... 5...17 V / 20 mA
S0 input acc. to DIN 43864:
Trig-level LOW........................................................... ≤ 2.2 mA
Trig-level HIGH.......................................................... ≥ 9.0 mA
Input impedance ...................................................... 758 Ω / < 1.5 nF
Sensor supply - pin 44, fixed.............................. 17 V
Special voltage input:
User programmable trig-levels........................... -0.05...6.50 V
Hysteresis, min......................................................... 50 mV
Input impedance, selectable:
High Z ................................................................... ≥100 kΩ / < 1.5 nF
Pull up and pull down..................................... 3.48 kΩ / < 1.5 nF
Sensor supply - pin 44, programmable........... 5...17 V / 20 mA
Special current input:
User programmable trig-levels........................... 0.0...10.0 mA
Hysteresis, min......................................................... 0.2 mA
Input impedance ...................................................... 1 kΩ / < 1.5 nF
Sensor supply - pin 44, programmable .......... 5...17 V / 20 mA

12 5725V102-UK
Output:
Display:
Display readout......................................................... -1999...9999 (4 digits)
Decimal point............................................................. Programmable
Digit height ................................................................ 13.8 mm
Display updating ...................................................... 2.2 times / s
Input frequency outside range and
NAMUR input sensor error is indicated by.... Explanatory text
Current output (5725D):
Programmable signal ranges............................... 0...20, 4...20 &
20...0, 20...4 mA
Load (max.)................................................................. 20 mA / 800 Ω / 16 VDC
Current limit ............................................................... ≤ 28 mA
Load stability............................................................. ≤ 0.01% of span / 100 Ω
Programmable response time............................. 0.1...60.0 s
Sensor error indication, at NAMUR input:
selectable............................................................ 0 / 3.5 / 23 mA / none
Output limitation at outside range:
on 4...20 and 20...4 mA signals.................. 3.8...20.5 mA
on 0...20 and 20...0 mA signals.................. 0...20.5 mA
Relay outputs (5725D):
Relay function........................................................... Setpoint
Hysteresis, in % / display counts ...................... 0...100% / 0...9999
On and Off delay...................................................... 0...3600 s
Power On delay ........................................................ 0.0...60.0 s
Sensor error action.................................................. Make / Break / Hold
Max. voltage .............................................................. 250 VRMS
Max. current............................................................... 2 A / AC
Max. AC power .......................................................... 500 VA
Max. current at 24 VDC......................................... 1 A
Marine:
Det Norske Veritas, Ships & Offshore............. Stand. f. Certific. No. 2.4
Approvals:
EMC 2014/30/EU..................................................... EN 61326-1
LVD 2014/35/EU ..................................................... EN 61010-1
UL, Standard for Safety......................................... UL 508
EAC TR-CU 020/2011............................................ EN 61326-1

5725V102-UK 13
Sensor error indication, inside and outside range
Input ”out of range” indication
Valid measurement range: Out of range limit Display readout
f to I function:
0.001 Hz to 50 kHz
< 0.0009 Hz (18 min. 31 sec.)
or
0.5 Hz (2.0 s) if L.COF=YES (Low
cut-off frequency)
If In.Lo is set to 0.000 Hz:
”0.0”
If In.Lo is set ≥ 0.001 Hz:
”IN.LO” - flashing
> 50.5 kHz ”IN.HI” - flashing
Period time function:
20 µs to 999.9 s
> 1111 s (18 min. 31 sec.)
(Low cut off time) ”IN.HI” - flashing
< 19.8 µs ”IN.LO” - flashing
Sensor error indication in 5725, only available for NAMUR input:
Condition Out of range
limit
Relay
behaviour
Analog
output value
Display
redaout
Sensor input
type = NAMUR
and sensor error
detection = ON
> 6.9 mA Set to user
defined value: HOLD.
ACTIVE. DEACTIVE
or NONE
Set to user-
defined value
(23, 0, 3.5 mA
or NONE)
”SE.SH”
< 0.1 mA ”SE.BR”

14 5725V102-UK
! Error indications in the display blink once a second. The help text explains the error.
Display out of range Indication
Valid display value range: Out of range limit Display readout
-1999 to 9999 < -1999 ”-1.9.9.9.” - flashing
> 9999 ”9.9.9.9.” - flashing
Hardware error indication
Error explanation Error cause Display readout
Error in internal communication
(SPI etc.)
Permanent error in intercommu-
nication between microcon-
trollers
”HW.ER” - flashing
Error in checksum test of the con-
figuration in RAM Error in RAM ”RA.ER”- flashing
Error in checksum test of the con-
figuration in EEPROM Error in EEPROM ”EE.ER”- flashing
Error in OK check or checksum
test of the calibration data in
FLASH
Error in FLASH or
Calibration has not been per-
formed or Calibration data in
FLASH are corrupt
”NO.CA”- flashing

31 32
41 42 43 44 45 46
41 42 43 44 45 4641 42 43 44 45 46
41 42 43 44 45 46 41 42 43 44 45 46 41 42 43 44 45 46
41 42 43 44 45 46 41 42 43 44 45 46
mA
11 12
R2
R1
21 22 23 24 25 26
S0
- +
∼
41 42 43 44 45 46
TTL
TTL
+
+
+
5725V102-UK 15
Special current Special voltage Tacho
S0NAMUR
PNP NPN Contact (NPN)
Current
Inputs:
Output:
Supply:
Relays
CONNECTIONS
+ supply
+ supply 5-17 V + supply 5-17 V
+ supply 8.3 V + supply 17 V
+ supply 5-17 V + supply 5-17 V
+ supply

I+
21
22
23
11
12
31
32
24
25
26
CPU
EEPROM
5725A & D
1 2 3 4
44
46
45
43
42
41
R1
R2
mA
VREG
5...17 V
16 5725V102-UK
BLOCK DIAGRAM
I
Output
Common
Relay 1 N.O.
Relay 1 N.C.
Common
Relay 2 N.O.
Relay 2 N.C.
Supply
Supply
21.6...253 VAC
or
19.2...300 VDC
Option D
Gnd.
Option D
fin
Freq.
detector

5725V102-UK 17
CONFIGURATION / OPERATING
THE FUNCTION KEYS
Documentation for the routing diagram
In general
When configuring the display you are guided through all parameters, allowing
you to choose the settings which fit the application. For each menu there is
a scrolling help text which is automatically shown in the display if no key has
been activated for appr. 5 seconds.
Configuration is carried out by way of the 3 function keys 12and 3.
1will increase the numerical value or choose the next parameter. 2will
decrease the numerical value or choose the previous parameter. 3will accept
the chosen value and go to the next menu. If a function does not exist in the
hardware, all parametres belonging to that function will be skipped in order to
make configuration as simple as possible. The configuration will not be saved
until the end of the menu structure when the display shows ----.
Pressing and holding 3will return to the previous menu or go back to the default
state (”Monitor”) without saving the changed values or parameters.
If no key is activated for 2 minutes, the display will return to the default state
(”Monitor”) without saving the changed values or parameters.
Further explanations
Fast setpoint adjustment and relay test (only 5725D)
These menus are interactive and allow you to adjust the setpoints while the
display is measuring the input signal. The front LEDs will then indicate
when the relays change state, thus easing the setpoint adjustment in many
situations. By activating 1and 2simultaneously, a relay test will be initiated
and the relay will change state. The setpoint adjustment will be saved by a
quick press of 3. Holding down 3for more that 0.5 seconds will return the
display to the default state (”Monitor”) without changing the setpoint.

18 5725V102-UK
Password protection
Using a password will block access to the menu and parameters.
Default password 2008 allows access to all configuration menus.
5725D only: There are two levels of password protection.
Passwords between 0000 and 4999 allow access to the fast setpoint
adjustment and relay test menus (using this password blocks access to all
other parts of the menu).
Passwords between 5000 and 9999 block access to all parts of the menu, fast
setpoint and relay test (current setpoint is still shown).
Additional 5725 features (from s/n > 121435001)
Out of range indication at f/I function
Out of range min. limit is < 0.0009 Hz / (18 min. 31 sec.).
-if the In.Lo value is set to ”0.0” Hz the display readout will be ”0.0” when the
”out of range” min. limit is reached.
-if the In.Lo value is set different from ”0.0” Hz the display readout will
be ”In.Lo” - flashing - when the ”out of range” min. limit is reached.
Low cut-off filter
The 5725 frequency indicator has a selectable low cut-off filter, which sets the
display and output to 0% when the measured frequency is ≤ 0.5 Hz (2 s). This
filter allows the display to ignore extremely low frequencies from flowmeters
and encoders which are sometimes present when the process is at idle.
Faster analog output
The analog output response time can be adjusted to a fast 0.1 second, allowing
the analog output to track faster changing input signals.