Thank you for choosing a NIVELCO instrument.
We are sure that you will be satisfied throughout its use.
1. APPLICATION
The NIVOPRESS submersible hydrostatic level transmitter is applicable for the continuous level measurement of clean
or chemically faintly contaminated liquids in bored well, open reservoirs and tanks. The NIVOPRESS is easy to install in
already existing tanks and in deep bored well and is especially recommended for controlling of submersible pumps.
2. TECHNICAL DATA
Type NPK NPH
Ranges 0 …1, 2, 5 etc max 200 m. water head (see order codes)
Overload allowed For models with measuring limit below 20 m w. h. 2 x measuring limit
For models with measuring limit over 20 m w. h. 1.5 x measuring limit
Output 4 … 20 mA 2-wire 0 … 10V 3-wire
Operating voltage 9 to 30 V DC 18 to 30 V DC
Maximum load resistance Rs = (Us - 9 V) / 0.02 A
Us= voltage of the power supply ≥5 kΩ
Current — < 6 mA
Accuracy (FSO) ≤± 0.5 %
Zero drift ≤± 0,1 mA ≤80 mV
Temperature coefficient ≤± 0.1 %/ 10K ≤± 0.2% / 10 K
Operating temperature -10 °C to +60 °C for special request +75 °C
Ingress IP 68
Cable cross secion 0.34 mm2
Cable coating Polyurethane ∅7mm
Cable length up to 300 m according to the order
Probe size ∅22 x 215 mm
Mass probe: 0.2 k g cable: 0.06 kg/m
Wetted parts
Sensor: stainless steel 316L
Probe stainless steel 1.4571
Cable coating: polyurethane
Sealing: VITON
Protecting cap: ABS
Cable mounting plate NAA-103
Applicable With cable length up to150 m
Operating temperature -10 °C to +45 °C
Dimensions 110 x 110 mm
Cable terminal box NAA-101
Dimensions 139 x 119 x 70 mm
Ingress IP 65
Operating temperature –40 °C to +65 °C
Material Plastic
Cable gland ASM16 (∅5 to ∅10mm)
Electric connection Terminal block for cable with max cross section of 2.5 mm2
Cable terminal box with over voltage protection NAA-102 (for 2-wire models only)
Voltage clipping 33 Vpp
Serial resistance 13 ohm ±10 %
Leakage current 10 µA
Other data Same as with NAA101
Over voltage protection unit OVP12/33 and OVP32/33
Electric data Same as with NAA102
OVP12/33 OVP32/33 DIN rail mount
Ingress protection IP 54 IP 20
Dimensions 72 x 42 x19 mm 62 x 65 x 18 mm
2.1 ACCESSORIES Optional (to be ordered)
User’s Manual Cable mounting plate NAA 103
Guarantee sheet Cable terminal box NAA 101
Cable terminal box with OVP12/33 NAA 102
DIN rail mount over voltage protection OVP32/33
2.2 ORDER CODE
NIVOPRESS NP-2-
Output Code Range ** Code Cable length Code Cable length Code
0 … 1 m water head 1 10 m 1 1 m 1two-wire
4 … 20 mA K0 … 2 m water head 2 20 m 2 2 m 2
0 … 5 m water head 3 30 m 3 3 m 3three-wire
0 … 10 V DC H0 … 10 m water head 4 40 m 4 4 m 4
0 … 20 m water head 5 50 m 5 5 m 5
0 … 50 m water head 6 60 m 6 6 m 6
** Different span within the range
on special request. 0 … 100 m w. head 7 70 m 7 7 m 7
0 … 200 m w. head 8 80 m 8 8 m 8
90 m 9
up to 100 m
9 m 9
100 m A 0 m 0
200 m B 10 m 1
300 m C : :
over
100 m
90 m 9
USER’S MANUAL
Manufacturer:
NIVELECO Process Control Co.
H-1043 Budapest, Dugonics u. 11.
Tel: (36-1) 369-7575 Fax: (36-1) 369-8585
2.3 DIMENSIONS in mm
NIVOPRESS NP probe
215
∅
22
protection
cap
St.St.
cartridge
breathing
cable
∅
7
Cable mounting plate NAA103
mounting
plate
breathing cable
Tartó
110
110
15
30
15
∅
10
∅
6,3
7,5
breathing cable
Cable terminal box NAA101/NAA102
139
airing
119
80
ø4,5
Conduit opening Mounting
