GESTRA NRG 16-38S Original Installation Manual
Water level limiter with level electrode
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- Installation instructions manual (28 pages) ,
- Original installation instructions (48 pages)
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Summary of Contents for GESTRA NRG 16-38S
- Page 1 Water Level Limiter with Level Electrode NRG 16-38S NRG 16-39S Original Installation & Operating Manual 850978-00 E n g l i s h...
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Page 2: Table Of Contents
NRG 16-38S, NRG 16-39S, step 2 ......................16 Installing two level electrodes in a flange ....................17 Turn the NRGT 26-2 electrode tip ......................17 Installation example ............................. 18 Key ................................18 NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... - Page 3 Taking out of service/disassembly ......................40 Cleaning the measurement electrode of the level transmitter ..............41 Cleaning interval ............................41 Disposal ................................ 41 Returning decontaminated equipment ......................41 Declaration of Conformity; standards and directives ................. 42 NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00...
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Page 4: How To Use This Manual
How to use this Manual This Installation & Operating Manual describes the correct use of NRG 16-38S and NRG 16-39S level electrodes. It applies to all persons who integrate this equipment into control systems, install, bring into service, operate, maintain and dispose of this equipment. Anyone carrying out the above-mentioned activities must have read this Installation &... -
Page 5: Types Of Warning
In a steam boiler, for example, these parameters would be output: capacity, pressure and temperature. The pressure at the operating point does not have to match the design pressure, but is the same or lower. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 6: Usage For The Intended Purpose
Usage for the intended purpose The NRG 16-38S and NRG 16-39S level electrodes are combination devices and consist of one or two lev- el electrodes for water level limitation as well as the NRGT 26-2 level transmitter for water level control. -
Page 7: Improper Use
The name plate indicates the technical features of the equipment. Function The NRG 16-38S level electrode is a combination device and consists of 1 NRG 16-11 level electrode (water level limiter) and 1 NRGT 26-2 level transmitter (continuous level measurement). -
Page 8: Technical Data
NRGT 26-2: M12 – connector, A-coded Protection IP 65 acc. to EN 60529 Admissible ambient temperature Max. 70°C STARLOCK is a registered trademark of Gebr. Titgemeyer GmbH & Co. KG, Osnabrück ® NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 9: Product Package
1 Installation & Operating Manual 1 cable jack 1 cable jack PHOENIX CONTACT SACC-M12FS-5PL SH (52851) PHOENIX CONTACT SACC-M12FS-5PL SH (52851) 1 STARLOCK lock washer 11.5/4.8 2 STARLOCK lock washers 11.5/4.8 ® ® NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 10: Example Name Plate/Identification
Set limit with TRV (Tmax) p Cutout relay/specification of functional safety Fig. 1 The date of production (quarter and year) is stamped on the screw-in body of the level trans- mitter. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 11: Nrg 16-11, Nrg 16-38S, Nrg 16-39S
Electrode length on delivery b Maximum pressure and temperature ratings c Manufacturer d Mark of conformity e Disposal information Optional information f Gasket/cell constant/additional data g Device combination Fig. 3 NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 12: Dimensions Nrg 16-38S, Nrg 16-39S
Measuring range (H =) NRG 16-11 Dimension for low water Dimension for Teflon tube 1095 1000 1199 1100 1304 1200 1408 1300 1513 1400 1621 1500 2141 2000 Fig. 4 Fig. 5 NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 13: Basic Safety Notes
Attempts to repair the equipment will cause the plant to become unsafe. NRGT 26-2 and NRG 16-11 level transmitters may only be repaired by the manufacturer, ■ GESTRA AG. Only replace faulty equipment with identical equipment from GESTRA AG. ■ NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 14: Required Personnel Qualifications
Persons trained by the plant operator to work Refits Specialist staff with pressure and temperature. Notes on product liability We the manufacturer cannot accept any liability for damage resulting from improper use of the equip- ment. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 15: Installation
Size 18 (19) open-ended spanner ■ ■ Flat file, cut 2 Size 1 screwdriver ■ ■ Size 13 open-ended spanner Size 2.5 screwdriver, fully insulated to VDE 0680-1 ■ ■ Size 17 open-ended spanner ■ NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 16: Nrg 16-38S, Nrg 16-39S, Step 1
Do not insulate the external electrode and transmitter housing along with the boiler. ■ Install level electrode in a vertical position only. ■ A protective tube must provided on the steam generator side for installation, see installation ■ example on page 18. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 17: Installing Two Level Electrodes In A Flange
4. Screw in the second electrode and tighten the nut in the terminal box to a torque of 25 Nm. 5. Reconnect the electrode wiring to the PCB. 6. Close the rear panel of the second electrode terminal box and screw back on. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 18: Installation Example
Flange PN 40, DN 100, EN 1092-1 (NRG 16-38S) Flange PN 40, DN 150, EN 1092-1 (NRG 16-39S) Pressure relief hole ∅ = 20 mm Protective foam tube DN 100 (NRG 16-38S), protective foam tube DN 150 (NRG 16-39S) NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 19: Electrical Connection
If non pre-wired control cables are used, you must wire the cable to match the pin assignment of the M12 connector. Shield + 24 V Power supply Power supply Current output (4 – 20 mA) Current output (4 – 20 mA) Connector Fig. 9 NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 20: Nrg 16-11 With Four-Pin Connector
Connection of level electrode with four-pin connector M 4 screw Sealing washer Cover Contact plate of the level electrode Connector upper part Strain relief Connecting plate M16 cable gland (PG 9) NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 21: Connecting The Level Electrode Nrg 16-11
8. Secure the cable with the strain relief 7 and the cable gland 8. 9. Put on the cover 2 and insert the screw 1. 10. Put the connector upper part onto the level electrode and tighten it with the screw 1. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 22: Connecting The Level Electrode Nrg 16-11 With Nrs 1-50, One Electrode
Wire bridge, at the site of installation, for use as a water level limiter according to EN 12952/EN 12953 Standby input, 24 VDC, for connecting SRL 6-50 monitoring unit NRG 1...-11 or NRG 16-36 level electrode CEP Central earthing point in control cabinet NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 23: Connecting The Level Electrode Nrg 16-11 With Nrs 1-50, Two Electrodes
Bridge, at the site of installation, for use as a water level limiter according to EN 12952/EN 12953 Standby input 1/2, 24 VDC, for connecting SRL 6-50 monitoring unit NRG 1...-11 or NRG 16-36 level electrode CEP Central earthing point in control cabinet NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 24: Bringing Nrg 16-11/Nrs 1-50 Into Service
Parameters are also password-protected when the equipment has been restarted, if password protection was previously enabled, see page 29. Default ex-works password The default password is “1902” and cannot be changed. Password protection is available from software version S-16 onwards. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... - Page 25 The display then alternates between the selected parameter and its current value. Keep pressing the rotary knob until the current parameter value flashes on the display. Move on to step 8. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00...
- Page 26 CAL.H = calibrate end of measuring range to 100% ■ Filt = filter constant ■ diSP = triggering of a display test ■ InFo = show software version and equipment type ■ = activate/deactivate password protection ■ NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00...
- Page 27 Press and hold the rotary knob until the value (e.g. 0025) appears. The last digit flashes. Set the desired reading to > 25% to match the set level. Save your setting by pressing the rotary knob for approx. 1 second. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00...
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Page 28: Setting The Filter Constant "Filt
Faulty equipment jeopardises plant safety. If numbers or decimal points are displayed incorrectly or not at all, you must replace the ■ level transmitter with an identical one from GESTRA AG. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 29: Viewing The Software Version And Equipment Type "Info
Turn the rotary knob and set the desired status. on = password protection is enabled ■ oFF = password protection is disabled ■ Press the rotary knob until “donE” is displayed. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 30: Checking The Level Display By Raising Or Reducing The Level
Do not allow any plant to go into operation without a successful check having been carried ■ out. The NRGT 26-2 level transmitter may only be repaired by the manufacturer, GESTRA AG. ■ Only replace faulty equipment with identical equipment from GESTRA AG. -
Page 31: Starting, Operation And Testing
Priority of error code display Higher-value error codes overwrite the lower-value ones in the display! Fault indications according to the error code table, see page 35 onwards. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... - Page 32 In the event of a fault or error state, an analogue value of 0 mA is displayed. ■ Electrode faults cannot be acknowledged. When a fault is corrected, the message disappears from the display, and the level transmitter returns to normal operation. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00...
- Page 33 If the level transmitter does not behave as described above, the equipment may be faulty. ■ Perform failure analysis. ■ The NRGT 26-2 level transmitter may only be repaired by the manufacturer, GESTRA AG. ■ Only replace faulty equipment with identical equipment from GESTRA AG. ■...
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Page 34: System Malfunctions
Bring the plant into a safe operating state before commencing work on the installation. ■ Switch off voltage to the plant and secure against switching on again. ■ Check that the plant is not carrying live voltage before commencing work. ■ NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 35: Display Of System Malfunctions Using The Error Codes
Channel 1 reading with disabled E.010 PWMTSTCh1Err Replace the level transmitter measurement signal Channel 2 reading with disabled E.011 PWMTSTCh2Err Replace the level transmitter measurement signal E.012 FreqErr Measurement signal frequency Replace the level transmitter. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... - Page 36 Virtually all of the aforementioned error codes can be caused by EMC interference. This is less likely to be the case for permanent errors, but should be considered for sporadic error codes. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00...
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Page 37: Faults During Use
■ The measuring range is incorrectly set. ■ Inspect the electrode and protective tube for fouling and ■ There is fouling of the electrode or protective tube. ■ clean if necessary. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... - Page 38 Reduce the ambient temperature around the terminal ■ If the temperature rises above 75°C, the error code box, e.g. by cooling. E.027 (Overtemp Err) appears and the 0 mA current output causes a fault shutdown. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00...
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Page 39: Checking Installation And Function
In the event of malfunctions or faults that cannot be remedied with the aid of this Installation & Operating Manual, please contact our service centre or authorised agent in your country. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 40: Taking Out Of Service/Disassembly
If twisting of the terminal box of >180° in relation to the electrode or the complete removal of the terminal box is necessary during disassembly, proceed as described on page 17. NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00... -
Page 41: Cleaning The Measurement Electrode Of The Level Transmitter
GESTRA AG. Such media include solid, liquid or gaseous substances, mixtures of these, or radiation. GESTRA AG can accept returned products only if accompanied by a completed and signed return note and also a completed and signed decontamination declaration. -
Page 42: Declaration Of Conformity; Standards And Directives
You can find details on the conformity of the equipment and the applicable standards and directives in the Declaration of Conformity and associated certificates. You can download the Declaration of Conformity from www.gestra.com and request relevant certificates by writing to the following address: GESTRA AG Münchener Straße 77... - Page 43 Notes NRG 16-38S, NRG 16-39S - Operating Instructions - 850978-00...
- Page 44 You can find our authorised agents around the world at: www.gestra.com GESTRA AG Münchener Straße 77 UK Importer: 28215 Bremen GESTRA UK Ltd Germany Tel. +49 421 3503 0 Unit 1 Sopwith Park, Royce Close, +49 421 3503 393 West Portway Business Park, Andover, E-mail info@de.gestra.com...
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