gefran HMF Series Instruction Manual

Smart hart melt pressure transmitters

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SMART HART MELT PRESSURE TRANSMITTERS

HMF, HWF SERIES

INSTRUCTION MANUAL

cod. 80636B Edit. 05/2022 - ENG

ATTENTION!

This manual is an integral part of the product,

and must always be available to operators.

This manual must always accompany the

product, including if it is transferred to another user.

Installation and/or maintenance workers MUST

read this manual and scrupulously follow all of the

instructions in it and in its attachments.

GEFRAN will not be liable for damage to

persons and/or property, or to the product itself, if the

following terms and conditions are disregarded.

The customer must respect trade secrets.

Therefore, this manual and its attachments may

not be tampered with, changed, reproduced, or trans-

ferred to third parties without GEFRAN's authorization.

Table of Contents

Summary of Contents for gefran HMF Series

Page 1 GEFRAN will not be liable for damage to persons and/or property, or to the product itself, if the following terms and conditions are disregarded.
Page 2 80636B_MAN_HMF - HWF_05-2022_ENG...
Page 3: Table Of Contents
INDEX Gefran Smart HART series  READY-TO-USE GUIDE ��4 READY-TO-USE Using magnetic pen / pin CAL feature .......................4 READY-TO-USE Using HART Communicator ........................4 Menu Tree  H Pres Transmitter............................5 1� General Information ��6 2� Acronyms ��6 3� Name coding ��7 4.
Page 4: Gefran Smart Hart Series  Ready-To-Use Guide
Gefran Smart HART series  READY-TO-USE GUIDE This Ready-to-Use guide can be used by expert instrumentation operators to configure the transmitter using HART Communication or Autozero/Calibration features through magnetic pen or contacts on output connector. For more full information please refer to the complete manual before operating.
Page 5: Menu Tree  H Pres Transmitter
Menu Tree  H Pres Transmitter Alarms & 1 Device Setup Process 1 PV Pressure 1 Sensor Status 1 1 Pressure PDQ Warnings variables 2 PV % range 2 Sensor Status 2 2 Pressure LSL 3 PV Loop Cur Device 3 Pressure USL Peak 4 SV Elect temp...
Page 6: 1� General Information
1� General Information This manual applies to the following products: HMF and HWF series produced by Gefran spa, via sebina 74 – 25050 Provaglio di Iseo - BS - Italy. General information This manual must be kept near the equipment for easy reading and consultation.
Page 7: 3� Name Coding
HMF S Hart Mercury Filled Melt Pressure Transducer SIL 2 Certifed Gefran Melt sensors are pressure/temperature transmitters designed for use in high temperature envi- ronments. They read media pressure up to a temperature of 400°C, and resist such high temperatures thanks to their special mechanical construction, in which the measurement element is isolated from the Melt.
Page 8: Sensor Technical Specifications
4� Sensor Technical Specifications 4�1� HWF – Technical data H <±0.25%FS (100...1000 bar) Accuracy (1) M <±0.5%FS (17...1000 bar) Resolution 16 bit 0..35 to 0..1000bar Measurement range 0..500 to 0..15000psi Rangeability 2 x FS Maximum overpressure (without degrading performances) 1.5 x FS above 500bar/7500psi Measurement principle Extensimetric Power supply...
Page 9: Hmf - Technical Data
Vcc (V) 250 ohm minimum for HART communication Sensors are manufactured in compliance with: - EMC compatibility directive - FM Approval Scheme (except version 2) Electrical installation requirements and Conformity certificate are available on our web site: www.gefran.com 80636B_MAN_HMF - HWF_05-2022_ENG...
Page 10: 5� Mechanical Dimensions
5� Mechanical Dimensions For the mechanical dimensions please keep as reference the product datasheets or Gefran website www.gefran.com 6� Installation and positioning on the machine TECHNICAL DATA Extrusion processes require very high temperatures. Extrusion pressure can be checked by means of especially designed transducers.
Page 11: Drilling Tool Kit
Incorrect working or shape of the side can result in properties out of specification, bad behaviour or damage to the sensor. The side should be clean and without any polymer residual. Drilling kit A drilling kit with formed tools for drilling, reaming and tapping is available to facilitate correct preparation of the assembly seat.
Page 12 CORRECT SEAL contact surface TRANSDUCER INSTALLATION Installation procedure 1) Make sure the drilling procedure has been realized correctly. If the sensor is installed in a previously used hole, make sure the hole is completely clean and free of any plastic residual. 2) Remove the protective cap from the sensor tip.
Page 13: Wiring And Calibration
ORDER CODES FOR TOOLS and ACCESSORIES SF 18 MOUNTING BRACKET DUMMY PLUG 1/2-20UNF CLEANING TOOL KIT M18x1,5 1/2-20UNF M18x1,5 DRILL KIT 1/2-20UNF M18x1,5 6�3� Wiring and calibration Connections The sensors have to be connected as shown in the diagram at chapter 7. To obtain a higher immunity from field noise, connect the cable shield to the female connector case on sen- sor side.
Page 14: 7� Electrical Connections
7� Electrical Connections The interface to controller is: - a multi-polar cable outlet with conduit output type ½ 14-NPT as illustrated in Fig. 7.1.. where are also pointed out the connections (2 wires connection current amplified). In the case of relay output with retransmitted output in current (2 wires) the connections are shown in Fig.
Page 15: 8� Command Modes
8� Command modes The command modes must be used by the user only to make periodical recalibrations of the system in the process, and are made through: • Magnetic sensor/Pin CAL • HART Communication 8�1� Using Magnetic pen and Pin CAL The event combinations give the following functions: Autozero Calibration (CAL)
Page 16 2) C (CAl) AlibrAtion Application mode Limits Result Start CAL: The whole Zero unbalancement in During the Calibration phase the signal The Calibration function is activated comparison to the zero done by the will be unbalanced to the 80% FS. by short-circuiting the pin E –...
Page 17: Using Hart Communication
8�2� Using HART communication During HART Handheld Communicator connection In case of hazardous areas please refer to the handheld communicator user manual for instructions for using HART Communicator correctly. Please consider a minimum of 250 Ohm resistance has to be present in the loop. The loop current is not measured directly by the HART Communicator.
Page 18 9� By means of calibrated pressure generator, apply the same pressure already set in URV during step 6. Output should equal 20mA. In case output isn’t 20 mA, please go to step 10. 10. In order to calibrate full scale output, please apply firstly pressure equal to full scale pressure. Then you can proceed to set Upper Trim value with Device Variable Trim method (fast key 1, 2, 6, 3, 3; anyhow please consider Lower Trim value has to be done).
Page 19 LRV Rerange (7, 1) This function is the pressure at which the transmitter will display a 4 mA output as entered directly by the ope- rator. LRV variation affects the transmitter span so the range is restricted by the minimum span value found in fast key (1, 3, 4, 3).
Page 20 Status (1, 2, 1, 1) Reads Device Status. The status is shown in 3 bytes: Standardized Device Status: Function Reserved Non volatile memory failure Not used Watchdog reset executed Voltage conditions out of range Not used Not used Not used Sensor Status 1: Function Input stage error...
Page 21 After setting a new pressure unit, all entries for pressure are converted to the new unit, using the following rules: 1 psi = 0.068947 bar = 0.0068947 MPa = 0.070309 kgf/cm² Tag (1, 3, 1) An inventory “Tag” identification number may be stored in transmitter memory (8 characters maximum). Software tag is a single question mark by default.
Page 22 HART Communicator Fast Key Sequences The Hart Communicator Fast Key sequences are reported in the following table. Please consider Fast Keys as shortcuts to rapidly moving through the menu tree. HART Communicator Fast Key Sequences Function Fast Key Sequence Read PV Pressure 1, 1, 1 Read % of Full Scale 1, 1, 2...
Page 23: 9� Maintenance
Installation and/or maintenance workers must read this manual and scrupulously follow all of the instructions in it and in its attachments. GEFRAN will not be liable for damage to persons and/or property, or to the product itself, if the following terms and conditions are disregarded.
Page 24: Functional Safety Notes (For Sil 2 / Pl D Certified Versions Only)
10� Functional Safety notes (for SIL 2 / PL d certified versions only) Designated category and fail exclusions The safety function of the transducer is the correct measure and transduction of the read pressure value, with generation of a current output signal (4...20mA) within specification written in the datasheet and in the current operating manual, for comparison with a fixed safety threshold - high threshold (comparison performed by external downstream controller) The designated category to which are limited the use of safety related parts is Category 2.
Page 25 Effect on the safety function of the performance variations The limit of performance degradation in order to avoid the loss of the safety function is ± 5% of the span at room temperature. SRP/CS interface and protection devices The interface to controller can be: •...
Page 26 Analog Failure How to reset output Broken primary element HIGH Send sensor to factory for repair Broken chip HIGH Send sensor to factory for repair Pin detachment HIGH Send sensor to factory for repair Pressure over 200% of the span vs factory zero @ RT HIGH Switch off and on;...
Page 27 Periodicity: it is good practice to make the control whenever any variation of the operating conditions occurs, i.e. variation related to the material and/or the temperature, which can cause pressure channel occlusions. Command modes check The activity evaluates the proper functioning of the command modes and their effects on the sensor. This is implemented by feeding the sensor out of the line and performing the following operations: RESET AUTOZERO, AUTOZERO, CALIBRATION.
Page 28: Ne21 And Ne43 Compatibility Specifications
Application for use relevant to the designated category The HMF, HMF P/S, HWF and HWF P/S series transducer can be used in a pressure sensing chain in order to stop any pressure generating system if a pressure threshold is overcome. The threshold is only set in factory and can’t be changed by the user.
Page 29: Only)
11� SAFETY NOTES FOR APPLICATIONS IN POTENTIALLY EXPLOSIVE ATMOSPHERES (for FM certified versions only) The HWF and HMF (see Note for available versions) are designed and manufactured according to NEC500 for explosive gas and dust atmospheres, with the following type of protection: _XP Class I, Div.1, Groups A, B, C, D _DIP Class II, III, Div.1, Groups E, F, G _NEMA 4 X, IP67...
Page 30: Mounting Instructions For Installations In Dangerous Zones
Standard FM approved product Nameplate FM approved + SIL2 product Nameplate FM approved + PL'd' product Nameplate 11�1� Mounting Instructions For Installations In Dangerous Zones Based on the application, HMF and HWF series Melt pressure transmitters must be installed according to the instructions in Fig.
Page 31: 12� Annexes
12� ANNEXES Annex 1 - Hg TOXICOLOGICAL SHEET 1 - E Product data lements identifying • Molecular formula: substAnCe or • Structura formula: prepArAtion And • Commercial name: Mercury CompAny • SDS N°: CH0349 • Information supplied by: E.S. & Q. A 2 - C •...
Page 32 7 - h Handling Andling And • Instructions for safe handling: Keep containers hermetically sealed. Good ventilation/aspiration torAge in workplaces. Open and handle containers with care. Avoid formation of aerosol. • Instructions for preventing fires Keep all-service mask handy and explosions: Storage •...
Page 33 11 - t • Acute toxicity: Significant LD/LC50 values for classification: Mercury. oxiCologiCAl For inhalation: LCLo: (30h) 0,03 mg/l (rabbit) informAtion • Primary irritability: - On the skin: has no irritating effects. - In the eyes: not particularly irritating. - Sensitization: no sensitizing effects are known •...
Page 34 15 - I • Classification according to CE The product is classified and coded in conformity to CE directi- nformAtion on directives: ves/rules on hazardous products / dir. 67/548 25° updat e / dir. regulAtions 88/379 4°update • Label code for product T Toxic hazardousness: N Hazardous for the environment...
Page 35 GEFRAN spa via Sebina, 74 - 25050 Provaglio d’Iseo (BS) - ITALIA - Tel. +39 0309888.1 - Fax +39 0309839063 www.gefran.com - www.gefranonline.com...

This manual is also suitable for:

Hwf series Hwf p Hwf s Hmf p Hmf s