NIVELCO N H Series User manual

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We are convinced that you will be satisfied with our product.
1. APPLICATION
NIVOPRESS N submersible hydrostatic level transmitters are applicable for the continuous level measurement of clean
liquids or liquids with slight chemical contamination in wells, open reservoirs or tanks. The NC is recommended for level
detection of contaminated water. NIVOPRESS N is easy to install in tanks and deep wells, and especially recommended
for controlling submersible pumps. The use of supplemental accessories is recommended. Using a sewage adapter direct
contact between the sewage and the diaphragm of the built-in pressure sensor can be avoided. 2-wire types are available
with built-in 4-wire Pt100 temperature sensor or separate 2-wire temperature transmitter. 2-wire types have HART®
communication interface. The Ex-types are available for explosion hazardous environments.
2. TECHNICAL DATA
SUBMERSIBLE PROBE 2-wire 3-wire
TYPE NP, NF, NZ, NR NC, NT NK, NN,
ND, NH NB, NG NH
Measurement range(1) 0…200 mH2O 0…20 mH2O 0…200 mH2O 0…200 mH2O
A
s per order code
Overload allowed
(as a function of range) 3x 20x ( ≤3 mH2O) 10x ( >3 mH2O)
3x ( ≤20 mH2O)
2x ( >20 mH2O) 3x
Output 4…20 mA + HART®4…20 mA 4…20 mA + HART®0...+10 V (0 V ≤80 mV)
Power supply 12…30 V DC 18…30 V DC / 6 mA
Load
(Ut= power supply.;
Umin = min. power supply 12 V)

min
max
0,02


t
UU
R
A
≥5 kΩ
Built-in temperature sensor HART®secondary value,
accuracy: ±3°C (±5.4°F) – HART®secondary value, accuracy: ±3°C (±5.4°F) –
Thermal compensation error (2) ±0.2% Not applicable ±0.2% Not applicable
Linearity error (level transmitter) ±0.25% ±0.45% ( ≤20 m H2O)
±0.25% ( >20 m H2O) ±0.25%
Temperature error ≤±0.1% / 10 K ≤± 0.1% / 10 K ≤±0.2% / 10 K
Operating temperature (3) −30…+60 °C (
–
22…+140 °F)
Process connection NA
A
-209 cable mounting wedge clamp, threaded types with ¾″BSP thread
Ingress protection IP68
Electrical protection Class III
Electrical connection Shielded cable with breathing capillary Ø7 mm (Ø0.275 inch)
Wire cross section 0.34 mm2 (AWG 22)
Cable length 0…300 m (0…985 ft) as per order code; (Ex ia IIC: max. 100 m [328 ft])
Dimensions
NP, NF: Ø22x173 mm
(Ø0.87 x 6.8")
NZ, NR: Ø38x174 mm
(Ø1.5 x 6.85")
Ø40x146 mm
(Ø1.55 x 5.75")
NK, NN: Ø22x173 mm
(Ø0.87 x 6.8")
ND, NH: Ø38x174 mm
(Ø1.5 x 6.85")
Ø24 x 212 mm
(Ø1 x 8.3")
NPH: Ø22 x 173 mm
(NPH: Ø0.87 x 6.8")
NZH: Ø38 x 174 mm
(NZH: Ø1.5 x 6.85")
Mass
NP, NF:
probe: 0.2 kg (0.44 lb)
NZ, NR:
probe: 0.3kg (0.66 lb)
Probe:
0.4 kg (0.88 lb) Probe: 0.2 kg (0.44 lb)
Cable: PUR cable: 0.065 kg/m, FEP cable: 0.072 kg/m
A
dditional temperature transmitter
ND types
Output: 4…20 mA; Power supply: 14…30 V DC;
Temperature range: 0…+60 ºC (+32…+140 ºF);
Accuracy: ±3 °C (±5.4 °F)
-
A
dditional temperature transmitter
NPtypes Pt100B sensor, 4-wires -
Material of
wetted
parts
Sensor 1.4404 or
(1.4571 and 1.4435) Al2O3ceramic 1.4404 or
(1.4571 and 1.4435)
Housing 1.4571 POM-C 1.4571
Cable coating Polyurethane / FEP
Sealing Viton®(FKM)
Protecting cap 1.4571
–
1.4571 POM-C 1.4571
(1) m H2O means: 1 metre of water column,1 mH2O ~ 0.1 bar
(2) valid if temperature compensation is active, can be switched in parameter HART - P10b
(3) special order max. +75 °C (+167 °F)
2.1 ACCESSORIES
User’s Manual
Warranty Card
EU declaration of Conformity
ADDITIONAL DATA FOR EX CERTIFIED MODELS –ATEX APPROVAL NO.: BKI16ATEX0009
Type N–5–Ex
Power supply 14…30 V DC
Ex marking Up to 100 m (328 ft) cable length: II 1G Ex ia IIC T6 Ga, between 100 m (328 ft) and 300 m (985 ft) cable length: II 1G Ex ia IIB T6 Ga
Reference document npk4110m0600h_04
Temperature range −30…+60 °C (−22…+140 °F)
Intrinsically safe data Ui = 30 V, Ii = 100 mA, Pi = 0.8 W
for IIC gas group: Ci≤52 nF, Li≤1.4 mH (calculated with 100 m [328 ft] integrated cable), for IIB gas group: Ci≤132 nF, Li≤1.6 mH
ACCESSORIES
Cable terminal box NAA–101
Dimensions 93 x 93 x 55 mm (3.66 x 3.66 x 2.16 inch)
Ingress protection IP65
Operating temperature −40…+70 °C (−40…+158 °F)
Material Polystyrol
Cable gland M20x1.5 (cable outer diameter 5…10 mm
[0.2…0.4 inch])
Electrical connection Terminal block for cable with max. cross section
of 2.5 mm2 (AWG 13)
Cable terminal box with
overvoltage protection* NAA–102
Data See: NAA-101
Electrical data See: OVP
Cable mounting wedge clamp NAA–209
Max. mech. load 300 m (985 ft) cable
Operating temperature −20…+60 °C (−4…+140 °F)
Overvoltage protection OVP–12/33*, OVP–22/33* OVP–32/33*
Mounting outdoor EN 60715 - 35 mm (1⅜inch) rail
Dimensions 72 x 42 x 19 mm
(2.8 x 1.65 x 0.75 inch)
62 x 65 x 18 mm
(2.44 x 2.56 x 0.7 inch)
Ingress protection IP54 IP20
Breakdown voltage 33 V
A
bsorbed energy 600 W / 1 ms
Internal resistance 13 Ω
Leakage current 10 A
*only for 2-wire 4…20 mA equipments!
Adapters
Threaded spacer Material
NAZ-101-0 ¾" BSP
–
½" BSP
KO35 (1.4571)
NAZ-102-0 ¾" BSP
–
M20x1.5
NAZ-105-0 ¾" BSP
–
1" NPT
NAZ-106-0 ¾" BSP
–
1" BSP

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2.2 ORDER CODE (NOT ALL COMBINATIONS POSSIBLE!)
NIVOPRESS N – –
SENSOR /CABLE MATERIAL /HOUSING MATERIAL CODE OUTPUT CODE VERSION CODE MEASURING RANGE(2) CODE CODE CABLE LENGTH CODE
Ceramic (capacitive) 2-wire 4…20 mA + HART®K Standard NC 2 1 mH2O 1 0 0 m
Up to 100 m
0 m 0
PUR / 1.4571 C(1) 3-wire 0…10 V DC H(1) Standard 42 mH2O 2 1 10 m 1 m 1
FEP / 1.4571 T(1) Level: 4…20 mA + HART®
Temperature: 4…20 mA D(1) Ex 5 5 mH2O 3 : : : :
Stainless steel (piezoresistive) 10 mH2O 4 9 90 m 9 m 9
PUR / 1.4571 P Level: 4…20 mA + HART®
Temperature: Pt100B P 20 mH2O 5 A 100 m
Over 100 m
0 m 0
FEP / 1.4571 F 50 mH2O 6 B 200 m 10 m 1
PUR / 1.4571 / ¾" threaded Z 100 mH2O 7 C 300 m : :
FEP / 1.4571 / ¾" threaded R 200 mH2O 8 90 m 9
Ceramic (piezoresistive)
PUR / 1.4571 K
FEP / 1.4571 N
PUR / 1.4571 / ¾" threaded D
FEP / 1.4571 / ¾" threaded H
PUR / POM B(1)
FEP / POM G(1)
(1)
Ex version not available
(2) m H2O means: 1 meter high water column, 1 mH2O ~ 0.1 bar
ACCESSORIES TO ORDER
Cable terminal box NAA-101 Sewage adapter NAW-104, NAW-107, NAZ-103
Cable terminal box with OVP NAA-102
Overvoltage
protection units
OVP-12/33, OVP-22/33 (outdoor)
Cable holding sliding sleeve 1½" BSP NAA-105 OVP-32/33 (DIN rail mountable)
Cable mounting wedge clamp 1½" NPT NAA-209 Adapters NAZ-101-0, NAZ-102-0, NAZ-105-0, NAZ-106-0
2.3 DIMENSIONS
NP
/
NF
/
NK
/
NN
probe
NC
/
NT
probe
NZ
/
NR
/
ND
/
NH
probe
NB
/
NG
probe
NAA
–
209
Cable holding wedge clamp
NAA–101, NAA–102 – cable terminal box NAA–105
Cable holding sliding sleeve
Sewage adapter
NAW
–
104 NAW
–
107 NAZ
–
103
NAA-102 terminal box is featuring an
OVP-12/33 overvoltage protection unit
Overvoltage protection unit
OVP
–
12/33, OVP
–
22/33 OVP
–
32/33
(All units are in mm unless otherwise indicated.)

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3. INSTALLATION
To fasten the cable, use NAA–209 cable mounting wedge clamp that provides a
solution for hanging the cable without slipping and risk of rupture.
The NAW–104 sewage adapter can be snapped in the place of the sensor
protecting cap of types NP, NF, NK, NN.
The NAZ–103 threaded sewage adapter can be used with types NZ, NR, ND, NH.
INSTALLATION STEPS
The cable of the level transmitter must not be twisted. In the case of NZ, NR,
ND, NH types with threaded connection, make sure the cable is not fixed
before screwing the sensor into the appropriate process connection.
Feed the special cable through the glands, set the proper cable length and
fasten the cable with the glands.
Cable overhang must be wound on a pipe with a diameter of at least 100 mm
(3.94 inch). The cable must not be cut shorter!
Let the probe down to the lowest possible point, as only the liquid column
above the probe will be measured.
To connect the breathing cable and the signal cable use the cable terminal box
NAA–101 or NAA–102 (with IP65), that accommodates the cable end in a dust and
humidity free enviroment.
Attach the cable box (e.g., by using two M4 screws) to a flat surface. In open-air or
industrial applications, the transmitter must be protected against transient surges
and overvoltage. The GND of the OVP must be grounded with the shortest
possible wire. In this case, install the NAA–102 terminal box (with OVP) close to
the measurement location.
MOUNTING EXAMPLE
Usings additional over-voltage protection (OVP–12/33, OVP–22/33, OVP–32/33)
at the opposite end of the cable, near the processing unit is recommended.
If safety is a priority, using a protecting electrode enhances the efficiency of
electrical protection!
Overvoltage protection unit must not be used with Ex devices OVP-12/33,
OVP-22/33, and OVP-32/33!
3.1. TERMS AND CONDITIONS FOR APPLICATIONS IN DRINKING
WATER SUPPLY (HUNGARY ONLY)
The following terms and conditions are required for the use of the NIVOPRESS
NP, NZ and NF type hydrostatic level transmitters in drinking water supply,
domestic hot water-supply and bathwater-supply applications:
• Water temperature must not exceed 60 °C (140 °F), or in the case of NZ probe
30 °C (86 °F).
• Before using the hydrostatic level transmitter, clean and disinfect its surface in
compliance with applicable regional regulations. The cleaning detergent must not
cause any damage to the hydrostatic level transmitter or its material. For cleaning
and disinfection, only detergents or disinfectants authorized by the Office of the
Chief Medical Officer (OCMO) must be used.
• It is recommended to rinse the device to remove surface deposits before use!
Rinsing water must be drained and must not be used for household purposes.
The use of the device in the applications mentioned above is allowed only if these
precautions are satisfied.
4. WIRING
2-wire level
4…20 mA
3-wire level
0–10 V
2-wire
4…20 mA +Pt100
4…20mA +HART®LEVEL
+TEMPERATURE
Legend:
CABLE CORE COLOUR
1 Shielding Yellow
2 Positive power supply Red
3 Negative power supply, Voltage output (-) Black with an additional
blue-coloured insulation
4
NPH/NZH (3-wire) types: Voltage output (+);
NPP/NZP types: Pt100 sensor current drive;
NPD/NZD types: positive power supply of the temperature transmitter
Uncolored
5
NPP/NZP types: Pt100 sensor current drive;
NPD/NZD types: negative power supply of the temperature
transmitter
Uncolored + blue
shrinkable tube
6 NPP/NZP types: Pt100 sensing Black
7 NPP/NZP types: Pt100 sensing Black / red tube
L Breathing capillary with vapour filter –
2-wire 4…20 mA
NAA–101 NAA–102
3-wire 0…10 V DC OVP–32/33
NAA–101
O1(F), O2(E) – outputs
I1(C), I2(D) –inputs
A, B, H, G – ground
WIRING OF OVP–12/33, OVP–22/33

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INSTALLATION EXAMPLE USING OVERVOLTAGE PROTECTION UNITS
4.1 SPECIAL CONDITIONS OF SAFE USE
Hydrostatic level transmitters with Ex ia IIC and Ex ia IIB protection type can only
be used in intrinsically safe loops, powered by a certified sparkless power supply,
in accordance with the specified technical data.
The metal housing of the device must be connected to the EP network using the
connection cable marked 1. The maximum cable length of the transmitter is 5 m
(16.4 ft).
5. PUTTING INTO OPERATION, CONFIGURATION
A properly installed and suspended probe needs some time to stabilize, which
depends on the cable's length. With a 300 m (985 ft) cable, stabilization might take
up to several hours, depending on the circumstances. The device is ready for
operation as soon as it is switched on, but it can only measure accurately after the
stabilization period.
If correction of insertion length is needed, loosen the cable holder sliding sleeve,
adjust the probe to the desired level, and fasten the cable holder sliding sleeve.
5.1 HART®OUTPUT
HART®-capable transmitters can communicate with NIVELCO's MultiCONT
universal process controller or through a HART®-USB modem with a PC using
standard HART®commands; the devices can be programmed remotely with
EView2 configuration software. The MultiCONT can power the transmitters, it
provides a remote programming possibility and the measured values can be
transmitted via RS485 communication line if needed. (See the details in the User's
and Programming manual of MultiCONT). The current loop output of the units can
be also configured with the EView2 software in the pressure range from 2% to
130%.
The damping time of the units can be also configured with the EView2 software or
with any HART®standard programming interface. The damping time is a time
constant of a time period. Its minimal value: 0 sec., maximal value: 99 sec.
5.2 PARAMETERS AND PROGRAMMING
P0:- - - a (lowest) Pressure value assigned to 4 mA
P1:- - - a (highest) Pressure value assigned to 20 mA
P0 and P1 (lowest and highest) pressure values can be assigned to the
4 mA and 20 mA current loop output values.
When changing the factory set values make sure that the entered values
fall within the specified range of the pressure transmitter otherwise the
device will indicate error.
FACTORY DEFAULT:
P0 = [minimum measurable pressure value of the sensor] mmH2O
(usually 0000)
P1 = [ maximum measurable pressure value of the sensor] mmH2O
(usually the possible max. value of the measurement range)
P5: Medium density [g/cm3]
Minimum value: 0.5 g/cm3. Maximum value: 2 g/cm3.
(If thermal compensation is active, it is always determined by the density
curve of water, regardless of the stored density value.)
FACTORY DEFAULT: 1 g/cm3.
P9: Current generator test (mA)
With this parameter the user can test the current loop output by entering a
value between 3.9 mA and 20.5 mA and test it with an ammeter.
Warning: the test mode can be cancelled only by entering 0000 to P9.
P10:- - - a Measuring mode
a Measuring mode
0 mbar Pressure
1 psi
2 mm H2O
Level (water head)
3 ft H2O
4 cm H2O
5 m H2O
FACTORY DEFAULT: 2
P10:- - b - Thermal compensation for water
Digit "b" of the P10 parameter toggles between normal and thermally
compensated mode.
The thermally compensated mode applies to water medium and is only
active for level measurement. In compensated mode, the current output,
and PV is the compensated level. SV is the temperature. TV is always an
uncompensated value, and QV is always a compensated value.
bThermal compensation
0Level measurement without
thermal compensation
1Level measurement with
thermal compensation
FACTORY DEFAULT: 0
P12:- - - a Error indication by the current loop output
aError indication
0< 3.9 mA
1> 21 mA
FACTORY DEFAULT: 0
P13: HART short address (Polling address)
If multiple HART®-capable transmitters are used in a loop, the instruments
are distinguished by their polling addresses. If the polling address is 0
(default), the current output is 4…20 mA, and HART®communication works
on the 4…20 mA current signal. Conforming to the HART®standard max.
15 HART®devices can be connected to a HART®loop with polling
addresses between 1 and 15. Thus, the output current will be set to 4 mA
and only the digital HART®communication will work. Instruments connected
to the same loop should not have same polling addresses or 0 polling
address set.
FACTORY DEFAULT: 0
P24: Damping Time
There is a possibility to setting the output damping time. Damping time is a
constant value for a time period. The minimum value is 0 seconds, the
maximum is 99 seconds.
FACTORY DEFAULT: 0
6. MAINTENANCE AND REPAIR
Sometimes the orifices of the NPK’s protective cap and they need cleaning to
remove surface deposits. Do not touch the sensor membrane when cleaning!
The membrane cap of threaded probes must be taken off before cleaning, and the
filter behind it must also be removed. Do not touch the sensor membrane when
cleaning!
7. STORAGE CONDITIONS
Storage temperature: −10…+50 °C (+14…+122 °F)
Relative humidity: max. 85%
npk411en2006h
November 2020
NIVELCO reserves the right to change technical specifications without notice.