Tetratec Instruments M16 User manual

TetraTec Instruments GmbH
Gewerbestrasse 8
D-71144 Steinenbronn
Deutschland
E-Mail: in o@tetratec.de
Tel.: 07157/5387-0
Fax: 07157/5387-10
OPERATION MANUAL
M16
Pneumatic Precision Vacuum Regulator
*** VERSION 1.0 ***
Update: 22.04.2021

Operation Manual
M16
INDEX OF CONTENTS
INDEX OF CONTENTS.........................................................................................................2
ENERAL INFORMATION...................................................................................................3
TECHNICAL DESCRIPTION................................................................................................3
SPECIFICATIONS.................................................................................................................4
Pressure Control Ranges....................................................................................................4
Response Behaviour...........................................................................................................4
Operating Conditions..........................................................................................................4
Media Compatibility.............................................................................................................4
Flow Behaviour....................................................................................................................4
Enclosure..............................................................................................................................4
Process Connections..........................................................................................................4
INSTALLATION.....................................................................................................................5
NOTICE..................................................................................................................................5
ADJUSTMENTS....................................................................................................................5
OPERATION..........................................................................................................................5
MAINTENANCE.....................................................................................................................5
CAUTION...............................................................................................................................5
TROUBLE SHOOTIN .........................................................................................................5
DIMENSIONS........................................................................................................................6
FUNCTIONAL DRAWIN .....................................................................................................7
MOUNTIN BRACKETS......................................................................................................9
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Operation Manual
M16
ENERAL INFORMATION
Precision Regulator or Vacuum and Overpressure
Pressure Control Ranges rom -0,9 to 10,0 bar
Response Sensitivity better 0,9 % F.S.
Input Pressure Dependency better 0,1 % F.S./bar
Open Pressure Regulator with Relie Valve
TECHNICAL DESCRIPTION
The M16 precision pressure regulator is a direct acting proportional regulator or vacuum and
overpressure with regulation range limits rom -0,9 bar and +0,15 up to +10,0 bar. It can be used
or both operation modes: inline to regulate mixed pressures out o vacuum and overpressure and
by-pass operation as pure vacuum regulator versus atmosphere.
Between the spring-diaphragm-system and the counteracting output pressure arises a orce
balance, which keeps the outlet pressure almost constant or large input pressure changes. This is
supported by the continuous bleeding o a small amount o air through a relie valve, which
prevents the regulator rom riction caused pausing. In addition to small pressure dependency the
regulator there ore shows high control sensitivity and ast response behaviour.
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Operation Manual
M16
SPECIFICATIONS
Pressure Control Ranges
Upper Limits o Output or Set Point Pressure: -0,9 to +0,15 / 0,7 / 2,0 / 7,0 / 10,0 bar
Input or Primary Pressure: > 150 % F.S. (max. 17 bar)
Response Behaviour
Response Sensitivity: < 0,9 % F.S.
Input Pressure Dependency: < 0,1 % F.S./bar
Operating Conditions
Input Pressure: -0,9 bar vacuum and up to 17 bar
overpressure
Temperature: -40 ... +93 °C
Humidity: 0 ... 90 % r.H. (non-condensing)
Media Compatibility
Clean, dry, oil- ree air; humidity non-condensing.
Flow Behaviour
Air Mass Flow at 7 bar Primary Pressure and
1,4 bar Set Point Pressure:
1100 Nl/min
Air Mass Flow or By-pass Operation,
Atmosphere versus Vacuum:
70 Nl/min
Air Mass Flow or Inline Operation,
Atmosphere versus Vacuum:
1 Nl/min
Air Consumption (Constant Bleed): < 5,5 Nl/min
Approximated lows with ully opened valve or standard conditions
(1013 mbar abs., 0 °C, 0 % r.H.).
Enclosure
Dimensions Regard page 6 “Dimensions”
Material Housing: Aluminium, anodised
Control Knob: Plastic
Valve Assembly: Stainless steel, brass and zinc-plated steel
Diaphragm: Nitrile on Dacron
Weight Total: 940 g
Process Connections
Pressure Standard: 1/4“ NPT (3 x)
Optional: 3/8“ NPT (3 x)
Manometer: Standard: 1/4“ NPT (2 x)
Optional: 1/4“ BSPT (2 x)
Options:
c,d,e Respectively single chooseable options
A Silicone elastomers
H BSPP (Parallel) instead o NPT thread inline
I Tamper proo
J Fluorocarbon elastomers
L Controller with low low
U BSPT (Tapered) instead o NPT thread inline
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Operation Manual
M16
INSTALLATION
Clean pipe lines to remove dirt and scale be ore installation is made. Apply minimum amount o
pipe compound to male threads o air line to avoid possibility o getting compound into regulator.
Install regulator in air line, body is itted with a 1/4" or 3/8” NPT or inlet and outlet connections.
Regulator can be mounted in any position without a ecting its operation. Inlet and outlet
connections are labeled ( look or arrows denoting direction o low on underside o unit ) and
should be tightened securely. Avoid undersized ittings that will limit low through the regulator and
cause pressure drop downstream. The use o a ilter to remove dirt and entrained liquid in the air
line ahead o the regulator is recommended or best per ormance. I an air line lubricator is used ,
it should be located downstream beyond the regulator in order to avoid inter erence with the
regulator per ormance.
NOTICE
The presence o certain diester oils in the airlines may hasten deterioration o the elastomers and
thus decrease the use ul li e o this unit.
ADJUSTMENTS
No ield adjustments are necessary.
OPERATION
Relieve pressure on range spring be ore putting regulator into service or the irst time. When
operating at pressure above atmospheric, turn the adjusting screw slowly in a clockwise direction
until required downstream pressure is obtained. For pressure below atmospheric, turn the
adjusting screw counterclockwise until the desired setting is obtained. Turned in a clockwise
direction, the screw compresses the range spring causing increased output pressure. For
decreased output pressure, or set a lower vacuum setting, turn the screw counterclockwise.
MAINTENANCE
The Regulator is easily disassembled or the occasional cleaning or removal o oreign matter.
Be ore this is done, however, shut o valve upstream o the regulator to prevent escape o air
when regulator is disassembled. Also shut o the controlled vacuum to avoid pressurizing the
system. There is no need to remove the regulator rom the pipe line, remove the two No.10 - 32
screws on the bottom o the unit and pull out the inner valve assembly. Wash inner valve
assembly with solvent exercising care to avoid damaging diaphragms and valve acings. Replace
assembly care ully. The vent hole in the bonnet should be kept clear. The adjusting screw should
be lubricated with Molycote type “G” grease.
CAUTION
(Avoid such solvent as acetone, carbon tetrachloride, trichlorethylene)
TROUBLE SHOOTIN
Problem Check
Leakage Body screw thightness Diapraghm
High Bleed Relie pintle and relie seat or damage or contamination
Di icult to Adjust Adjusting screw and ball Seal ring lubrication
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Operation Manual
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DIMENSIONS
AMounting threads or mounting brackets
BVent keep clear
CVacuum pump
DMax. Atmosphere or pressure supply
EControl system pressure
F1/4" or 3/8” NPTF
1/4" NPT manometer connections on both sides
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Operation Manual
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FUNCTIONAL DRAWIN
1Vent or Blow o (keep Clear)
2Connection or Pressure Supply
3Control System Pressure
4Piston combined with diaphragm bedded springs bothsides (Signal diaphragm)
5Piston combined with diaphragm bedded with spring on the top (Control diaphragm)
6Connection or vacuum pump
7Relie valve combined with diaphragm bedded with supply valve spring on the bottom
Po Aspirator tube or controlling the actual pressure at operation
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Operation Manual
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CONNECTION OPTIONS
Advantageous connection o the vacuum regulator, i the vacuum tank should be evacuated and
controlled very quickly. In this case the vacuum pump operates directly to the vacuum tank and is
not throttled through the regulator.
Advantageous connection o the vacuum regulator, i the tank should be illed with overpressure in
one case and should be evacuated in the other case. The supply pressure can be opened
alternatively to atmosphere.
Notice: Connection side to atmosphere or supply pressure should be equiped with a pressure
ilter.
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Operation Manual
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MOUNTIN BRACKETS
Zinc plated steel (Accessory)
316 Stainless steel (Accessory)
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Table of contents