Endress+Hauser Process Instrumentation, New Zealand

RFQ / Endress+Hauser

Two instruments with the same model name can be completely different products. The order code on the nameplate carries the process connection, the wetted materials, the seal, the pressure rating, the output signal and the hazardous area approval. Send the order code and the serial number, not the model name.

Endress+Hauser is on most New Zealand dairy, water, wastewater and food process plant. It is a configured product line rather than a catalogue of stock items, which changes how it has to be quoted.

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Reference pages

Page	Covers
Flow meters	Promag and Promass, why the sensor and transmitter are a calibrated pair, earthing on magmeters, zeroing a Coriolis meter, and what actually causes erratic readings

What is on the nameplate, and why we need all of it

Item	What it does
Model name	Promag, Cerabar, Liquiphant. The family only
Order code	The configuration string. This is the specification
Extended order code	The full option list, often on a second line
Serial number	Identifies that exact instrument as built
Ex marking	Hazardous area approval, if any
Ratings	Pressure, temperature, measuring range

The model name tells us almost nothing on its own. A pressure transmitter family spans dozens of process connections, several seal materials, multiple pressure ranges and several output types.

The serial number is the most useful single thing you can send us, because the manufacturer can regenerate the original build specification from it. If the label is damaged and only the serial survives, we can usually still work out what you had.

So photograph the whole nameplate. It is faster than transcribing it and it does not introduce typing errors into a forty character string.

The product lines

Level

Family	Principle
Micropilot, FMR	Free space radar. Non-contact
Levelflex, FMP	Guided wave radar. Rod or rope probe
Liquiphant, FTL	Vibronic point level. The tuning fork
Soliphant, FTM	Point level for solids
Prosonic, FMU	Ultrasonic level
Deltapilot, FMB	Hydrostatic level
Nivotester, FTL3xx	Switching units for point level probes

Pressure

Family	Measures
Cerabar, PMC and PMP	Gauge and absolute pressure
Deltabar, PMD and FMD	Differential pressure. Also level and flow by inference
Ceraphant	Pressure switches

Flow

Family	Principle
Promag	Electromagnetic. Conductive liquids. The dairy and water workhorse
Promass	Coriolis. Mass flow and density
Prowirl	Vortex. Steam and gas
Prosonic Flow	Ultrasonic, including clamp-on
t-mass	Thermal mass, for gas

Temperature

Family	What it is
Omnigrad, TR and TC	RTD and thermocouple assemblies, thermowells
iTEMP, TMT	Head and rail mounted temperature transmitters

Analysis and recording

Family	What it is
Liquiline, CM44x	Multichannel analysis transmitters
Memosens sensors	pH, ORP, conductivity, oxygen, turbidity, chlorine
Memograph, Ecograph	Data recorders
RIA	Field indicators

Hazardous area approval is not an option you can ignore

The most consequential thing on this page.

An instrument for a zoned area carries a specific approval, and an instrument without it is not a substitute regardless of how identical it looks.

Point	Detail
The approval is part of the order code	It is not a sticker that can be added
Protection type matters	Intrinsically safe and flameproof are different installations
An intrinsically safe loop needs a matching barrier	The instrument is one half of the arrangement
Documentation follows the instrument	Certificates matter at audit

So if the instrument came out of a zoned area, tell us. We will quote the approved version and we will not offer you a standard one as an alternative.

Whether a particular instrument and installation are suitable for a given zone belongs with whoever holds the site's hazardous area classification and dossier. We supply what you specify and we flag it when an approval is in the order code.

Process connection and wetted materials

Where most substitution mistakes happen, and it matters more in food and dairy than anywhere else.

Aspect	Why it matters
Connection type	Tri-clamp, DIN 11851, Varivent, flange, thread. All different
Size and rating	Flange standard and pressure class
Wetted material	Stainless grade, Hastelloy, ceramic, PTFE
Seal material	EPDM, FKM, silicone, PTFE. Must suit product and CIP chemicals
Surface finish	Hygienic applications specify it
Certification	Food contact and material traceability where required

Seal material is the quiet one. A seal that suits the product may not suit the caustic and acid in the clean-in-place cycle, or the temperature it runs at. That failure shows up weeks later as a leak or a contaminated batch rather than immediately.

So tell us the product, the CIP regime and the temperature, not just the connection size.

The output signal is built in

Output	Notes
4 to 20 mA with HART	The most common, and the most portable
PROFIBUS PA	Older process networks
FOUNDATION Fieldbus	Older process networks
PROFINET, EtherNet/IP, Modbus	Current digital options
Ethernet-APL	The newer two wire Ethernet standard

The output is set by the electronics in the instrument and is part of the order code. A HART instrument does not become a PROFIBUS instrument.

So on a replacement, match the output to what the control system expects, and tell us what the DCS or PLC is reading if you are not sure.

The configuration can usually be carried across

The good news, and it follows a pattern that runs right through this site.

Many Endress+Hauser instruments hold their configuration in a plug-in data memory rather than only in the electronics. When the electronics module is replaced, that memory can carry the settings, the calibration data and the operating history across to the new module.

Consequence
An electronics failure need not mean reconfiguring from scratch
The electronics module alone may be the part you need, not the whole instrument
The instrument's own history survives, which matters at audit

So before quoting a whole transmitter, tell us what actually failed. If it is the electronics and the sensor is sound, that is a much smaller order.

And take a configuration backup while the instrument works. Most sites can do this with a handheld communicator or the asset management software they already own.

Memosens puts the calibration in the sensor

Worth its own section, because it changes how an analysis loop is maintained.

A Memosens sensor holds its own calibration data and connects to the transmitter through a contactless coupling rather than metal pins.

Consequence	Why it matters
Sensors can be calibrated in the lab	Then plugged in on the plant. No field calibration
A spare calibrated sensor is a swap	Minutes, not an instrument technician's afternoon
The connection tolerates moisture	No corroded pins in a wet plant
Sensor history travels with the sensor	Useful for troubleshooting and for audit

So on a plant with pH or conductivity measurement, holding one calibrated spare sensor per type turns a calibration job into a plug swap. That is one of the better value spares decisions in process instrumentation.

pH sensors are consumables with a finite life regardless of how well they are treated, so they get ordered repeatedly. Worth setting up properly.

Honest position on used instruments

Worth stating plainly, because it differs from how we handle drives and PLCs.

Situation	Our view
Instrument on a quality or custody measurement	Buy new, or budget for calibration
Hazardous area duty	Approval and documentation have to be right
Food or dairy contact	Materials and certification matter
Obsolete transmitter on a non-critical loop	Surplus is a sensible answer
Electronics module, display or housing part	Surplus works well

We will tell you which of those you are in. On a measurement that determines product quality or trade, we would rather quote you new than sell you a cheaper instrument that puts the measurement in doubt.

Where an instrument is obsolete and the loop is not critical, surplus keeps a plant running for a fraction of a replacement project. Both are legitimate and they are different conversations.

Before ordering a replacement

Symptom	Check first
Reading erratic or noisy	Earthing and the cable screen, before the instrument
Reading offset but stable	Calibration, zero point or a blocked impulse line
Level reading stuck or jumping	Build-up on the probe, foam, or agitator interference
Display dead, loop still working	The display module, which is a separate part
Instrument dead entirely	Loop power and the barrier, before the transmitter
Electronics failed, sensor fine	The electronics module alone may be the part
pH drifting quickly	Sensor life. They are consumables
Leaking at the process connection	Seal material against the CIP regime

What to send us

A photo of the nameplate. The single most useful thing.

The order code and the serial number.

What the instrument measures, and on what product.

The process connection, and a photo of how it is fitted.

Whether it is in a hazardous area.

The output signal, and what reads it.

The CIP regime and temperature, on hygienic applications.

What failed, because the electronics module or the display may be the answer.

What we can supply

Instruments. Level, pressure, flow, temperature and analysis across the current families, configured to your order code.

Obsolete instruments. Earlier generations of Cerabar, Deltabar, Promag, Promass, Micropilot and Liquiphant, as surplus where new is no longer available.

Parts rather than whole instruments. Electronics modules, display modules, housings, covers and terminal parts.

Analysis consumables. Memosens sensors, holders, cables and buffer solutions.

Accessories. Weld-in adapters, thermowells, mounting brackets, seals and sun shields.

We tell you plainly whether an item is new, surplus or used, and whether it carries calibration documentation.

A sensible instrumentation spares holding

Item	Why
One calibrated Memosens sensor per type	Turns a calibration job into a plug swap
A configuration backup of every instrument	Free, and it makes an electronics swap trivial
Seals for the process connections you run	Cheap, and a leak stops production
One spare point level switch	Common, inexpensive, and often safety related
Display modules	Fail more often than the instrument

Common questions

Can you get a part that is not listed on your site?
Usually. The site shows what we hold, not what we can source.

Why do you need the order code as well as the model?
Because the model is the family. The order code carries the connection, materials, range, output and approvals.

I only have the serial number.
That is usually enough. The original build specification can be recovered from it.

Can I use a non-Ex instrument in a zoned area?
No. The approval is part of the instrument and it cannot be added.

Do I have to replace the whole transmitter?
Often not. Electronics modules and displays are separate parts, and the configuration can usually be carried across.

Do you supply used instruments?
Where it makes sense. On quality, custody or hazardous area measurements we would rather quote new, and we will say so.

What is the lead time?
Configured instruments are made to order, so lead time depends on the build. We give you a firm figure with the quote.

Do you quote in NZD?
Yes, in NZD including GST for New Zealand customers.

Send us a photo of the nameplate

It carries the order code and the serial number, and between them they define the instrument exactly. Typing a forty character string is where errors come from. Quotes in NZD including GST.

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Industech is an independent supplier of new, surplus and used industrial automation equipment. We are not an authorised distributor of, approved by, sanctioned by, or affiliated with Endress+Hauser. Endress+Hauser, Promag, Promass, Prowirl, Prosonic, Cerabar, Deltabar, Micropilot, Levelflex, Liquiphant, Soliphant, Omnigrad, iTEMP, Liquiline, Memosens and Memograph are trademarks of the Endress+Hauser Group. HART is a trademark of the FieldComm Group. PROFIBUS and PROFINET are trademarks of PROFIBUS Nutzerorganisation. All trademarks, brand names and order codes are the property of their respective owners and are used here for identification purposes only.