NIVELCO D-500 Pressure Transmitter User Manual

: June 13, 2024
: NIVELCO

Table of Contents

NIVELCO D-500 Pressure Transmitter
Product Information
Technical Data
Product Usage Instructions
APPLICATION
TECHNICAL DATA
INSTALLATION
WIRING
SPECIAL CONDITIONS OF SAFE USE
TROUBLESHOOTING
MAINTENANCE AND REPAIR
STORAGE CONDITIONS
ABOUT COMPANY
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

NIVELCO D-500 Pressure Transmitter

Thank you for choosing NIVELCO instrument. Below is detailed product information and usage instructions:

Product Information

Application

The NIVELCO instrument is designed for measuring pressure in various applications.

Technical Data

Measurement Range: -1…600 bar (0…8700 psi) (According to the order code)
Overload Capability: According to the order code
Accuracy: 0.5% or 1% (depending on the code)
Process Temperature: For information on Ex certified devices, see Special Data for Ex certified models chart
Ambient Temperature: Not specified
Materials of the Wetted Parts: Stainless steel 1.4404 (316L)
Sensor Seal: According to the order code
Process Connection: According to the order code
Housing: Stainless steel 1.4404 (316L) or optional stainless steel 1.4301 (304)
Output: 4…20 mA or 0…10 V
Supply Voltage: 8…32 V DC or SIL version: 14…28 V DC (For Ex certified models: 10…28 V DC)
Load Resistance: Rmin = 10 k
Electrical Connection: Not specified
Ingress Protection: Class III (SELV)
Electrical Protection: Not specified
Weight: ~0.14 kg

Product Usage Instructions

Installation

Be careful when handling the instrument as the membrane is vulnerable.
Use a torque wrench to transfer torque to the hexagonal screw on the instrument body. Do not grip and tighten the cylindrical housing with a pipe wrench.
Ground the transmitter housing for noise suppression. Ensure proper grounding of the process, otherwise, ground the instrument.
Avoid high mechanical stresses on the pressure port during installation, especially if it is made of plastic.
For devices with cable outlet and integrated ventilation tube, ensure that the PTFE filter located at the cable end on the ventilation tube is not damaged or missing.
Note: For non-standard applications, specify the sensor type, sealing, housing, and the requirement for filling with food compatible oil in the order.

APPLICATION

NIPRESS D–500 series pressure transmitters with ceramic inner or optional flush diaphragm measure pressure and convert it into voltage and current output can be used in either 2- and 3-wire systems. The D-500 series is especially suitable for measuring aggressive, contaminated, pasty media, and low-pressure oxygen applications. The design, the overload capacity, resistance to various temperature ranges, and the mounting options and positions’ versatility make these transmitters applicable even under the most demanding industrial conditions. Transmitters can be delivered with plug-in display UNICONT PLK–501 enabling on-site reading. Ex or SIL versions are also available.

TECHNICAL DATA

	D oo –5 oo –2, –6, –C, –D	D oo –5 oo –3
Measurement range	−1…600 bar (0…8700 psi) (Acc	ording to the order code)
Overload capability	According to the o	rder code
Accuracy	±0.5%
Process temperature(1)	−40…+125 °C (−40	…+257 °F )
Ambient temperature(2)	−40…+85 °C (−40 …

(with integrated cable: −5…+7

| +185 °F )

0 °C [+23…+158 °F])

60 bar (PN ≤ 870 psi)

SIL version: 14…28 V DC

| 14…30 V DC
Load resistance| Rmax = (USupply – USupply min.)/0.02 A [Ω]| Rmin = 10 kΩ
Process connection | According to the order code
Electrical connection| ISO 4400, M12×1 (4-pin), integrated cable
Ingress protection| IP65 (ISO 4400), IP67 (M12×1), IP68 (integrated cable with ventilation tube)
Electrical protection| Class III (SELV)
Weight| ~ 0.14 kg

SPECIAL DATA FOR Ex CERTIFIED MODELS (ONLY FOR 4…20 mA / 2-WIRE)
ATEX approval, Ex ia

	D oo –5 oo –6 Ex, D oo –5 oo –D Ex
Ex marking	In case of metal process connection: x II 1G Ex ia IIC T4 Ga, x II

1D Ex ia IIIC T 135°C Da
In case of PVDF process connection: x II 2G Ex ia IIC T4 Gb, x II 2D Ex ia IIIC T 85°C Db
Ex reference document| drc5022a0600h_02
Ex Supply voltage| 10…28 V DC
Intrinsically safety data| U imax = 28 V DC, Iimax = 93 mA, Pimax = 660 mW, Ci ≈ 0 nF, Li ≈ 0 µH

The maximum interior capacity between the power supply connections and the metal housing is 27 nF.

Permissible medium temperature, atmospheric pressure| Zone 0: −20…+60 °C (−4…+140 °F), 0.8 bar (11.6 psi) ≤ patm ≤ 1.1 bar (15.9 psi) Zone 1, 2: −20…+70 °C (−4…+158 °F)
Connecting cable (in case of the device equipped with integral cable)| Cable capacitance: 160 pF/m Cable inductivity: 1 µH/m

ACCESSORIES

User’s manual
Warranty Card
EU Declaration of Conformity

ORDER CODE (NOT ALL COMBINATIONS POSSIBLE!)

NIVELCO-D-500-Pressure-Transmitter-fig-2

Ex versions are marked “Ex” right after the type designation on the label

Inner diaphragm version only
Inner or optional flush diaphragm version
Custom measuring range, based on prior negotiations
Inner diaphragm design (only with 1% accuracy)
Inner or optional flush design
Inner diaphragm design
Only with PTFE-coated version or underpressure ranges
Ex or SIL versions are available on request
Note:
In case of non-standard applications, the sensor type, sealing and housing, as well as the requirement for filling with food compatible oil has to be specified in the order!

DIMENSIONS

NIVELCO-D-500-Pressure-Transmitter-fig-3

INSTALLATION

Due to its small size and weight the transmitter can be directly installed on tanks, pipes, machines, etc. without any mounting aids.
To enable the safe replacement of the instrument during operation the use of closing armature is recommended. A simple ball valve will be suitable for lower pressures and for higher pressures (above 6 bar [87 psi]) a three-way blow-off needle-valve can be suggested.
In case of outside installation, the unit should be protected against rain or splash water, because malfunction may occur from a leakage if the connector’s screw is improperly tightened (i.e. not appropriate sealing).

INSTALLATION INSTRUCTION

The measured medium – depending on its type and properties, might be hazardous to the installer. Therefore, the wear of appropriate protective clothing, gloves, and goggles are recommended.
Be careful because the membrane is very vulnerable!
Torque should only be transferred to the hexagonal screw on the instrument body (torque wrench). The cylindrical housing of the transmitter must not be gripped and tightened with a pipe wrench!
The plug-in electric connector can be unplugged after releasing and removing its fastening screw. The connection insert can be pushed out by a screw driver from the direction of the screw. The terminal block can be rotated with 90° within the housing, so that the orientation of the cable gland could be changed to facedownwards. This is to prevent any leakages of the housing and subsequent damages may occur. The power cable is to be connected with the relevant points of the connector by guiding it through the cable gland (ISO 4400). Make sure if the cable gland and the sealing plate of the connector tightened properly! Tighten the screw of the connector so that the sealing plate underneath seals properly!
For the sake of noise suppression, the transmitter housing is grounded. If the grounding of the process is correct no further grounding is needed, otherwise the instrument should be grounded.
When installing the device, avoid high mechanical stresses on the pressure port!
This is particularly true for the pressure port made of plastic. Installation steps:

Tightening torques:

¼” BSP: max. 5 Nm;
½” BSP: max. 10 Nm;
¼” NPT: max. 30 Nm;
½” NPT: max. 70 Nm.
The specified tightening torques must not be exceeded!

Mounting steps for BSP thread connections according to DIN 3852

Do not use any additional sealing material such as PTFE tape!
Check if the O-ring is undamaged, it has a flawless and clean surface and seats in the designated groove properly. Screw the device into the corresponding thread by hand, and tighten the parts with a suitable torque wrench.

Mounting steps for NPT thread connections:
Use a suitable sealant (e.g. PTFE tape). Turn the device by hand to the correct thread and tighten it with an open-end torque wrench.

WIRING

Use a shielded and twisted multicore cable for the electrical connection. Electrically connect the device according to the “Connection of ISO 4400 plug” figure. For devices with cable gland, make sure that the external diameter of the cable used is within the allowed clamping range! Once connected the wires, tighten the gland screw firmly until the sealing is proper!
For the installation of a device with an integrated cable, the bending radiuses have to comply with the following:
Cable without ventilation tube:
- static installation: 8-fold cable diameter,
- dynamic application: 12-fold cable diameter.
Cable with ventilation tube:
- static installation: 10-fold cable diameter,
- dynamic application: 20-fold cable diameter.
In case of devices with cable outlet and integrated ventilation tube, the PTFE filter located at the cable end on the ventilation tube must not be damaged or missing!

EXAMPLES OF ARRANGEMENTS

SPECIAL CONDITIONS OF SAFE USE

Before turning on the device, make sure the installation is complete, with no defects visible.
The device may only be used within the limitations specified in the technical specifications.
The electrical connection of the device must be carried out in a way that the IP20 ingress protection is always ensured!
Ex ia certified transmitters may only be operated in certified and approved intrinsically safe Ex ia IIC circuits complying with the technical data and the device’s explosion protection marking.
The metal housing of the device must be connected to the EP (equipotential) network!
Attention! The devices may partially contain static charging capable plastic components. The presence of electrostatic charges may cause a risk of spark generation and ignition and therefore electrostatic charges must be completely prevented!
- Avoid friction on plastic surfaces!
- Do not clean the device dry!
- For example, use a wet duster!

TROUBLESHOOTING

Fault	Possible causes	Fault detection / remedy
No output signal:	The Connection is improper.	Check the connections!
Broken conductor/wire.	Check all wires with cable tester!

	Defective measuring device (signal input).	Check the ampere meter (and its

fuse) and the analogue input of the signal processing unit!

Analog output signal too low:

| |
Load resistance too high.| Check the value of the load resistance!
Defective energy supply.| Check the power supply and power / current on the transducer / transmitter!
| |
Slight shift of the output signal:| The diaphragm of the sensor is severely contaminated.| Cleaning with non-aggressive cleaning solutions, soft brush or sponge.
The diaphragm of the sensor is calcified or crusted.| It is recommended to clean the device carefully to ensure all the dirt is completely removed.
| |
Large shift of the output signal:| The diaphragm of the sensor is damaged (caused

by overpressure or mechanically).

| Check the diaphragm of the sensor, if it is damaged send the device back to the manufacturer!

MAINTENANCE AND REPAIR

The instrument does not require regular maintenance. The repair should only be carried out at NIVELCO’s premises.
When disconnecting the device, it must always be done in depressurized and disconnected state! Drain the medium before disconnecting the device.
If necessary, clean the diaphragm carefully with non-aggressive cleaning solution, soft paint-brush or sponge. Improper cleaning may cause the irreparable damage of the diaphragm. For this reason, never use sharp objects or pressurized air for cleaning the diaphragm.
The device returned for repair must be cleaned by the user, all chemical deposits must be removed, and the device must be disinfected before sending it back. In addition, the return package must include a properly filled Returned Equipment Handling Form, in which the sender declares that the device is free of all contamination and substances hazardous to health.