Endress+Hauser Cerabar T PMP 13 Manual

Technical Information

TI 372P/00/en Pressure Transducer

cerabar T PMP 135

Pressure transducer for hygienic processes

For absolute and gauge pressures up to 40 bar

Flush-mounted process connections with

metal diaphragm

Application

The Cerabar T PMP 135 is a pressure

transducer for hygienic applications, e.g.

in the food processing and pharmaceuti-

cal industries. It is designed for measu-

ring absolute and gauge pressures in

gases, vapours, liquids and dust.

•Finely graduated measuring ranges up

to 40 bar or 500 psi.

•Electronic versions:

– Analogue output 4...20 mA

– Switch output

– Approved for use in hazardous areas

Your benefits

This compact pressure transducer

impresses with its well-engineered

construction:

•Flush-mounted process connections

with metal diaphragm.

•Hygienic design as per 3A guidelines.

•Up to 4 times overload resistance and

extremely longterm stable.

•Optional with 3.1.B inspection certifi-

cate.

•Materials in contact with the process

only made of 316L stainless steel with a

surface quality Ra ≤0.8 µm.

Cerabar T PMP 135

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Function and system design

Measuring principle PMP 135 with analogue output

The process pressure acting upon the metallic separating diaphragm of the sensor is transmitted

to a resistance bridge via a fluid. The change in the output voltage of the bridge is proportional to

the pressure and can be measured directly.

PMP 135 with switch output

The process pressure acting upon the metallic separating diaphragm of the sensor is transmitted

to a resistance bridge via a fluid. A differential amplifier creates a standard signal from the pres-

sure-proportional change in output voltage of the bridge. A comparator with an adjustable hyste-

resis compares this signal with the pre-set switch point and then activates the transistor output

and the LED display.

Measuring system Cerabar T PMP 135 pressure transducer with

•4…20 mA analogue output.

Power supply, e.g. with RN 221N transmitter power supply unit from Endress+Hauser

•Switch output.

Preferably in connection with programmable logic controllers (PLC). Positive signal at electro-

nics switch output (PNP).

P01-PMx13xxx-14-xx-xx-xx-001

A = analogue output with transmitter power supply unit ➀

B = switch output with load ➁, e.g. PLC, DCS, relay

Input

Measured variable The measured variable for the Cerabar T PMP 135 pressure transducer can be selected as either

gauge pressure or absolute pressure.

Measuring range Measuring ranges up to 40 bar or 500 psi, see "Ordering information" section.

Output

Analogue output

Output signal 4...20 mA

Load RB≤(US-12 V) / 0.02 A (US= power supply)

Cerabar T PMP 135

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Switch output

Output signal Positive voltage signal (rate depends on power supply voltage) at electronics switch output

(PNP).

Output current Switch status ON: Ia≤500 mA

Switch status OFF: Ia≤1 mA

Power max. 6 W

Switch frequency max. 10 Hz

Input PLC Input resistance Ri≤2 kΩ

Input current Ii≥10 mA

Inductive loads To prevent electrical interference, only operate an inductive load (relays, contactors, solenoid val-

ves) when directly connected to a protective circuit (free-wheeling diode or capacitor).

Power supply

Cable entry

P01-PMx13xxx-04-xx-xx-xx-001

Plug with Pg 11 or ½ NPT gland M 12x1 plug 5 m cable, only analogue output

➀Plug-in housing ➀Coupling nut ➀Reference pressure line

➁Plug-in jack with gasket ➁Connector with gasket

➂Coupling nut ➂Operating potentiometer (inner)

➃Plug with O-ring

➄Operating potentiometer (inner)

Cerabar T PMP 135

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Analogue output

Electrical connection

P01-PMx13xxx-04-xx-xx-xx-002

➀Plug with Pg 11 or ½ NPT gland

➁M 12x1 plug

➂Cable (rd = red, wh = white, gn = green)

Supply voltage 12...30 V DC

Ex i: no-load voltage ≤26 V DC, short-circuit current ≤100 mA, power consumption ≤0.8 W

Residual ripple max. 5 %

Cable entry Plug with Pg 11 or NPT ½gland, M 12x1 plug or cable

Switch output

Electrical connection

P01-PMx13xxx-04-xx-xx-xx-003

➀Plug with Pg 11 or ½NPT gland

➁M 12x1 plug

R: external load, e.g. relay, programmable logic controller, distributed control system

Cerabar T PMP 135

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Supply voltage 18...32 V DC

Current consumption without load < 20 mA, with reverse polarity protection

Residual ripple max. 10 %

Cable entry Plug with Pg 11 or ½NPT gland or M 12x1 plug

Performance characteristics

The percentages in the "Performance characteristic" section refer to the measuring range.

Reference operating

conditions

as per DIN IEC 60770, T = 25 °C

Analogue output

non-linearity

≤0.5 %

including hysteresis and non-reproducibility (limit point method as per DIN IEC 60770)

Switch point

deviation

≤1 %

Switch point

non-reproducibility

≤0.5 %

Settling time 2...5 ms

Long-term drift ≤0.15 % per year

Influence of temperature •Zero: typical 0.2 %/10K, max. 0.5 %/10K. Values are 0.1 %/10 K higher for measuring spans

≤6bar.

•Span: typical 0.2 %/10 K, max. 0.5 %/10 K

•Switch point: typical 0.2 %/10 K, max. 0.5 %/10K

Operating conditions: Installation instructions

Mounting location anywhere

Location dependence Location-dependent zero shift can be corrected using potentiometer adjustment.

Operating conditions: Environment

Ambient temperature

range

–25...+70 °C

Ex i: –25...+65 °C

Storage temperature –40...+85 °C

Climate class 4 Z

with Z = 70 °C as per VDI/VDE 3540

Cerabar T PMP 135

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Degree of protection •with plug with Pg 11 or ½NPT gland: IP 65

•with M 12x1 plug when using gauge pressure sensors: IP 65

with M 12x1 plug when using absolute pressure sensors: IP 68 (1 m water column)

•with cable: IP 68 (1 m water column)

Vibration resistance 4M5 as per DIN EN 60721-3

Electromagnetic

compatibility

Interference emission as per EN 61326 electrical device B,

Interference immunity as per EN 61326 appendix A (industrial use) and NAMUR recommendation

NE 21.

Operating conditions: Process

Medium temperature –25...+100 °C (+135 °C for max. 1 hour)

Limiting medium pressure

range

–For overload resistance see "Ordering information" section

–Vacuum resistance up to 10 mbarabs

Mechanical construction

Design, dimensions

P01-PMP13xxx-06-xx-xx-xx-002

A = height dimension of process connections (see following section)

(all dimensions in mm / 25.4 mm = 1 in)

•Plug version with Pg 11 or ½NPT gland as per DIN 43650A/ISO 4400

•M 12x1 plug version

•Cable version, cable length of 5 m with cable outer diameter of 5.8 mm; wires 4 x 0.22 mm2;

reference pressure hose with outer diameter of 2 mm

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Process connections

P01-PMP135xx-06-xx-xx-xx-001

➀Clamp ½"...¾" (ISO 2852) or DN 10...DN 20 (DIN 32676)

➁Clamp 1"...1½" (ISO 2852) or DN 25...DN 40 (DIN 32676)

➂Clamp 2" (ISO 2852) or DN 50 (DIN 32676)

➃G 1A (ISO 228), with metallic sealing taper

➄G 1A (ISO 228), with sealing surface for flush-mounted installation

➅SMS 1½"

M = diaphragm diameter of 17.2 mm

* Height dimension A (see previous section)

(all dimensions in mm / 25.4 mm = 1 in)

Material •Process connection and diaphragm: AISI 316L

Surfaces in contact with the process with surface quality Ra ≤0.8 µm

•Transducer housing: AISI 304

•Plug: polyamide (PA)

•Cable outer covering: polyurethane (PUR)

•Fill fluid: Neobee M20 (FDA-no. 21CFR172.856)

Cerabar T PMP 135

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Human interface

Operating elements Position of operating elements

Analogue output: Zero point adjustment

The zero point can be corrected for the Cerabar T with analogue output and plug version.

P01-PMx13xx-19-xx-xx-xx-002

➀Potentiometer for zero point correction by ±5 % of the measuring range

Switch output: Switch point and hysteresis adjustment

For the Cerabar T with switch output, both the switch point and hysteresis can be adjusted. This

can also be carried out at atmospheric pressure using the enclosed test cable and a voltmeter.

P01-PMx13xxx-19-xx-xx-xx-002

➀Hysteresis adjustment 1.5...20 %; Factory setting 10 %

➁Switch point adjustment 0...100 %; Factory setting 50 %

➂LED colour code for checking the switch status: green = off; red = on

➃Connect voltmeter to test pins: 0...1 V corresponds to 0...100 %

–The percentages refer to the measuring range.

The potentiometer for operating the

Cerabar T with analogue or switch output is

located below the base of the plug.

P01-PMx13xxx-19-xx-xx-xx-003

Cerabar T PMP 135

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P01-PMP13xxx-05-xx-xx-en-001

Instructions for switch point and hysteresis

Uout = output voltage

p = acting pressure

–The percentages refer to the measuring range.

Certificates and approvals

Ex approval •ATEX II 1/2 G EEx ib IIC T6

•ATEX II 2 G EEx ib IIC T6

•ATEX II 3 G EEx nA II T6

CE mark The device meets the legal requirements of the EC directives. Endress+Hauser confirms that the

device has been successfully tested by applying the CE mark.

Pressure equipment

directive

This device conforms to Article 3 (3) of EC Directive 97/23/EC (pressure equipment directive) and

is developed and produced in sound engineering practice.

Cerabar T PMP 135

10 Endress+Hauser

Ordering information

Cerabar T PMP 135 10 Electrical connection

A1 Plug with Pg 11 gland, IP 65

A2 Plug with ½NPT gland, IP 65

A3 M12x1 plug, IP 65/IP 68

A4 Cable, 5 m, IP 68

99 Special version

20 Process connection

F Clamp ½"...¾", DN 10...20, PN 40

G Clamp 1"...1½", DN 25...40, PN 40

H Clamp 2", DN 50, PN 40

M G 1A, with metallic sealing taper, PN 40

N G 1A, with sealing surface for flush-mounted installation, PN40

SSMS1½", PN 40

Y Special version

30 Output signal, certificate

0 Analogue 4...20 mA, 2-wire

D Analogue 4...20 mA, ATEX II 1/2 G EEx ib IIC T6

1 Analogue 4...20 mA, ATEX II 2 G EEx ib IIC T6

5 Analogue 4...20 mA, ATEX II 3 G EEx nA II T6

2 Switch output PNP, 3-wire

3 Switch output PNP, ATEX II 3 G EEx nA II T6

9 Special version

40 Additional equipment

1 Without additional equipment

C Inspection certificate 3.1.B as per EN 10204

2 Linearity protocol

Y Special equipment

50 Measuring range, unit, pressure type

Gauge pressure Permitted overload

A1G 0...1 bar / 0...100 kPa 4 bar

A1H 0...1.6 bar / 0...160 kPa 6.4 bar

A1N 0...2.5 bar / 0...25 kPa 10 bar

A1Q 0...4 bar / 0...400 kPa 16 bar

A1R 0...6 bar / 0...600 kPa 24 bar

A1S 0...10 bar / 0...1000 kPa 40 bar

A1T 0...16 bar / 0...1600 kPa 64 bar

A1W 0...25 bar / 0...2500 kPa 100 bar

A1X 0...40 bar * / 0...4000 kPa * 160 bar

Q4H 0...15 psi 60 psi

Q4K 0...30 psi 150 psi

Q4N 0...50 psi 240 psi

Q4R 0...150 psi 600 psi

Q4S 0...300 psi 1500 psi

Q4T 0...500 psi * (* absolute pressure sensor) 2400 psi

Absolute pressure Permitted overload

A2G 0...1 bar / 0...100 kPa 4 bar

A2H 0...1.6 bar / 0...160 kPa 6.4 bar

A2N 0...2.5 bar / 0...250 kPa 10 bar

A2Q 0...4 bar / 0...400 kPa 16 bar

A2R 0...6 bar / 0...600 kPa 24 bar

A2S 0...10 bar / 0...1000 kPa 40 bar

A2T 0...16 bar / 0...1600 kPa 64 bar

A2W 0...25 bar / 0...2500 kPa 100 bar

A2X 0...40 bar / 0...4000 kPa 160 bar

R4H 0...15 psi 60 psi

R4K 0...30 psi 150 psi

R4N 0...50 psi 240 psi

R4R 0...150 psi 600 psi

R4S 0...300 psi 1500 psi

R4T 0...500 psi 2400 psi

PMP 135 -

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