GESTRA NRA 1-3 Bedienungsanleitung
1
Test Station NRA 1-3
NRA 1-3 mit CAN-Bus Schnittstelle
NRA 1-3
EN
English
Original Installation Instructions
818678-05
2
Contents
Page
Important notes
Usage for the intended purpose...............................................................................................................4
Safety note..............................................................................................................................................4
ATEX (Atmosphère Explosible) .................................................................................................................4
LV (Low Voltage) Directive and EMC (Electromagnetic Compatibility)........................................................4
Note on the Declaration of Conformity / Manufacturer's Declaration ..................................................4
Scope of supply ......................................................................................................................................4
Explanatory Notes
Description..............................................................................................................................................5
Function..................................................................................................................................................5
System components................................................................................................................................5
Technical Data
NRA 1-3 / NRA 1-3 with CAN Bus interface .............................................................................................6
Name plate/marking ...............................................................................................................................7
Dimensions NRA 1-3...............................................................................................................................8
Installation
Test station NRA 1-3a .............................................................................................................................9
Test station NRA 1-3e .............................................................................................................................9
Note........................................................................................................................................................9
Tools.......................................................................................................................................................9
Electrical connection
Wiring diagram for test station NRA 1-3 and NRA 1-3 CAN....................................................................10
Key .......................................................................................................................................................11
Only for NRA 1-3 CAN: Connection of supply voltage .............................................................................12
Connecting line of measuring electrodes...............................................................................................12
Connecting line of temperature sensor for detecting the plant temperature ...........................................12
Only for NRA 1-3 CAN: CAN bus connection, length and size of cables...................................................12
Electrical connection.............................................................................................................................13
Tools.....................................................................................................................................................13
Factory setting ....................................................................................................................................14
3
Contents
Page
- continued -
Commissioning procedure
Checking electrical connection..............................................................................................................14
Setting operating mode.........................................................................................................................14
Establishing number of measuring channels..........................................................................................15
Only for NRA 1-3 CAN: Activating CAN bus ............................................................................................15
Applying supply voltage.........................................................................................................................15
Operation, alarm and test
Specification of keys and indicators ......................................................................................................16
Start......................................................................................................................................................17
Only for NRA 1-3 CAN: Setting node ID and baud rate............................................................................17
Setting banking-up of condensate, mode 1 to 6 ....................................................................................18
Setting banking-up of condensate, mode 2 to 7 ....................................................................................19
Setting group temperatures in mode 1 and 6 .......................................................................................20
Setting steam loss, mode 1 to 4 ............................................................................................................22
Alarm messages ...................................................................................................................................23
Alarm list, maintenance interval and test, mode 1 to 7 ..........................................................................23
Malfunctions .........................................................................................................................................24
Removing and disposing of the test station
Safety note............................................................................................................................................25
Removing and disposing of the test station ...........................................................................................25
Annex CAN bus telegram
Directory of objects...............................................................................................................................26
PDO ......................................................................................................................................................27
Information content of transmitted CAN bus telegrams (PDO 1) ............................................................27
Information content of transmitted CAN bus telegrams (PDO 2) ............................................................27
Information content of transmitted CAN bus telegrams (PDO 3) ............................................................28
4
Important notes
Danger
The terminal strips of the test station NRA 1-3 are live during operation.
This presents the danger of electric shock!
Always cut off power supply to the equipment before mounting, removing or connect-
ing the terminal strips!
Usage for the intended purpose
Use test station NRA 1-3 only in conjunction with electrodes NRG 16-19, NRG 16-27 and NRG 16-28 for
monitoring steam traps for banking-up of condensate and loss of steam.
Safety note
The equipment must only be installed and commissioned by qualified and competent staff.
Retrofitting and maintenance work must only be performed by qualified staff who - through adequate
training - have achieved a recognised level of competence.
Scope of supply
NRA 1-3
1 Test station NRA 1-3
1 Installation manual
or
NRA 1-3
1 Test station NRA 1-3 with CAN Bus Interface
1 Installation manual
ATEX (Atmosphère Explosible)
According to the European Directive 94/9/EC the equipment must not be used in explosion-risk areas.
LV (Low Voltage) Directive and EMC (Electromagnetic Compatibility)
The equipment meets the requirements of the Low Voltage Directive 2006/95/EC and the
EMC Directive 2204/108/EC.
Note on the Declaration of Conformity / Manufacturer's Declaration
For details on the conformity of our equipment according to the European Directives see our
Declaration of Conformity or our Declaration of Manufacturer.
The current Declaration of Conformity / Declaration of Manufacturer are available in the Internet under
www.gestra.de Documents or can be requested from us.
5
Explanatory Notes
Description
The measuring electrode detects banking-up of condensate and steam loss either directly in the steam
trap or in separate test chambers.
The measuring electrodes NRG 16-27, NRG 16-28 feature an additional temperature sensor for
measuring the condensate temperature.
The test station NRA 1-3 is designed for the connection of up to max. 16 measuring electrodes and a
temperature sensor for measuring the plant temperature.
The test station NRA 1-3 is also available with a CAN bus interface.
Function
The following electrodes can be used for monitoring steam traps:
Measuring electrode NRG 16-19 (conductive) for detecting banking-up of condensate or steam loss
(electrode submerged or exposed) or
Measuring electrode NRG 16-27, NRG 16-28 for detecting steam loss (conductive) and
banking-up of condensate by measuring the condensate temperature by means of an integrated
temperature sensor Pt 1000.
Three LEDs indicate banking-up of condensate, steam loss and malfunction in measuring electrode
(cable disruption, short circuit) and a three-digit seven-segment display shows the number of the faulty
steam trap. If more than one steam trap are defective the numbers of the faulty traps are indicated one
after another.
If banking-up of condensate, steam loss or malfunction in measuring electrode is indicated, an output
relay for the collective alarm will also be energised.
When using the measuring electrodes NRG 16-27, NRG 16-28 you can set the switchpoint for the
message “Banking-up of condensate” as a function of the plant temperature that is detected separately
or of the temperature measured in the steam trap.
The seven-segment display indicates every 6 months the maintenance interval of the measuring
electrodes in the form of an error code.
The seven-segment display indicates also status and error messages.
For processing the measured values by a visual display unit - e. g. Spectorcontrol - the test station
NRA 1-3 is available with a CAN bus interface. The CANopen protocol is used for data exchange. The
electronic address (node ID) identifies the test station.
System components
TRG 5-53 (e.g.)
Temperature sensor with resistance thermometer Pt 100 for measuring the plant temperature.
NRG 16-19
Measuring electrode for detecting banking-up of condensate or steam loss (electrode submerged or
exposed).
NRG 16-27, NRG 16-28
Measuring electrode for detecting banking-up of condensate or steam loss (electrode submerged or
exposed) with integrated temperature sensor Pt 1000 for measuring the condensate temperature.
6
NRA 1-3 / NRA 1-3 with CAN Bus interface
Technical Data
Supply voltage
230 V, 50 / 60 Hz
115 V, 50 / 60 Hz optional
Only NRA 1-3 with CAN Bus interface
Supply voltage
24 V DC +/- 20 % via CAN Bus interface
Data exchange
CAN bus to ISO 11898, CANopen protocol
NRA 1-3 and NRA 1-3 with CAN bus interface
Fuse
external, slow-blow 200 mA
Power consumption
max. 5 VA
Inputs
16 inputs for measuring electrodes NRG 16-19, NRG 16-27, NRG 16-28
1 input for temperature sensor, e. g. TRG 5-53, measuring insert PT 100
max. length of connecting cables: 100 m
Output
1 volt free changeover contact, 4 A 24 V AC/DC, 115 V AC and 230 V AC
Inductive loads must be provided with interference suppressors (RC combinations) as specified by the
manufacture
Electrode voltage
12 V
Settings for banking-up of condensate
Difference between condensate and plant temperatures dts 1 K to 100 K, adjustable in steps of 1 K
(mode 1 and 6)
Difference between condensate temperature and switchpoint "Banking-up of condensate" dtC
1 K to 100 K, adjustable in steps of 1 K (mode 2 and 7)
Switchpoint "Banking-up of condensate" 0 °C to 255 °C,adjustable in steps of 5 K (mode 2 and 7)
Indicators and adjustors
1 three-digit seven-segment LED display, red, for indicating faulty steam traps and status and error
messages
3 LEDs for indicating banking-up of condensate, steam loss and malfunction in measuring electrode
3 pushbuttons for operating the equipment
1 ten-pole code switch for system configuration, node ID and baud rate setting
Versions
NRA 1-3a for wall mounting
NRA 1-3e for panel mounting
Housing material: ABS
Protection
NRA 1-3a: IP 65 to EN 60529
NRA 1-3e: Front: IP 65 to EN 60529, back: IP 00
Protection
NRA 1-3a: 2 (completely insulated)
Admissible ambient temperature
Max. 55 °C
7
Technical Data
Name plate/marking
Fig. 1
Housing
Housing material: ABS
Cable gland / Electrical connection
Cable gland with integral cable clamp, 8 x M 16 x 1.5,
17 five-pole screw-type terminals, conductor size 1.5 mm2
Weight
approx. 2 kg
Ambient temperature
when system is switched on: 0 ° ... 55 °C
during operation –10 °... 55 °C
Transport temperature
–20 °... +80 °C (<100 hours), defrosting time of the de-energized equipment before it can be put into
operation: 24 hours.
Storage temperature
–20 °... +70 °C, defrosting time of the de-energized equipment before it can be put into operation:24 hours.
Relative humidity
max. 95%, no moisture condensation
NRA 1-3
Max. admissible
ambient temperature
Manufacturer
Safety note
Equipment designation
Electrical specification
Protection
Disposal note
CE marking
Spare part specification
GESTRA AG
Münchener Str.77
D-28215 Bremen
Betriebsanleitung beachten
See installation instructions
Voir instructions de montage
SUL-Nr.:316147.XX
SUL-Nr.:316182.XX
NRA 1-3a CAN BUS
24V=+/- 20%
Prüfstation
Remote test unit
Station d’essai
5VA IP 65
Tamb=55°C (131°F)
250 V~ T 2,5 A
Mat.-Nr.:392721
- continued -
- continued -
8
Technical Data
Dimensions NRA 1-3
E
146.7
137
226.5
Fig. 2
Test station NRA 1-3 a
E
146.7
105
Fig. 3
Test station NRA 1-3e
Front panel cut-out 236 x 151
226.5
- continued -
9
Test station NRA 1-3a
The housing of the test station NRA 1-3a is designed for wall mounting. The four fixing holes are
accessible after opening the base part. For this purpose use a screwdriver with a broad blade to lever
the hinge out of the slot on the left side Fig. 2.
Then use suitable screws and wall plugs to fix the rear cover.
Installation
Note
Test station NRA 1-3a
After mounting the equipment you can
connect the measuring electrodes / temperature sensor
set the operating mode and the number of the measuring channels (see “Commissioning”)
in a single operation with the base part open. Then close the base part and lock the left hinge.
Test station NRA 1-3e
The housing of the test station NRA 1-3e is designed for panel mounting, panel cut-out:
236 x 151 mm. Place the equipment into the cut-out of the panel.
To unlock the hinge and swing the front panel open use a broad blade screwdriver to lever the front
panel out of the frame. Then turn the four screws for the tensioning clamps to the right until the
housing is firmly fixed in the panel cut-out, Fig. 3.
Tools
Screwdriver (5.5/100)
10
1234
12345
1234512345
1234512345
1234512345
1234512345
1234512345
1234512345
1234512345
1234512345
1234512312
1 098765
4
32
NO
Schaltwippe weiß
LN
NRA 1-3 NRA 1-3
CANopen
Electrical connection
Wiring diagram for test station NRA 1-3 and NRA 1-3 CAN
Fig. 4
NRG 16-27/-28 Intermediate
distribution frame
Condensate
Error
e. g. TRG 5-53
Disconnecting
switch
NRG 16-19
9
!
Cable tie
8
0
"
4
)
§
$
%
&
/
(
=
3
1
CH
+CL
-
CH
CL 2
3
4
5+24V
- 24V
5
6
7
Condensate
NRA 1-3 NRA 1-3 CAN
Terminal 4 (NRA 1-3)
Terminal 5 (NRA 1-3)
1
Toggle switch,
white
2
Inhaltsverzeichnis
Andere GESTRA Prüfgeräte Handbücher
Beliebte Prüfgeräte Handbücher anderer Marken
SMART
SMART KANAAD SBT XTREME 3G Series Bedienungsanleitung
Agilent Technologies
Agilent Technologies BERT Serial Bedienungsanleitung
Agilent Technologies
Agilent Technologies N3280A Bedienungsanleitung
Vernier
Vernier Go Direct Voltage Bedienungsanleitung
Lifeloc
Lifeloc R.A.D.A.R. Bedienungsanleitung
Fluke
Fluke T5-600 Bedienungs- und Montageanleitung
PCB Piezotronics
PCB Piezotronics 8159-0112A Bedienungsanleitung
BW Technologies
BW Technologies MicroDock II Bedienungsanleitung
Sun Nuclear
Sun Nuclear 1027 Bedienungsanleitung
Biomark
Biomark HPR LITE READER Bedienungsanleitung
Hioki
Hioki 3169-20 Bedienungsanleitung
Ashcroft
Ashcroft ATE-100 Bedienungsanleitung