Danfoss RT 113 Installation guide [da]
Installation guide
Pressure switch
RT 113
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<![if ! IE]> <![endif]>Danfoss 17-5027.10 |
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Fig. 1 |
Fig. 2 |
Fig. 3 |
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<![if ! IE]> <![endif]>Danfoss 17-11212.1202 |
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Fig. 4 |
Fig. 5 |
Fig. 6 |
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© Danfoss | DCS (jmn) | 2015.11 |
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IC.PI.P10.K2.60 | 520B6246 | 1 |
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ENGLISH
Data
Pressure switch, type RT 113
Fig. 1 and 2
Max. ambient temperature: 70 °C / 158 °F Max. test pressure: 0.5 bar / 7 psig
Min. test pressure: 76 cm / 25 in Hg vacuum
Setting
Fig. 3
A = Range setting
B = Differential obtained
C = Differential setting
RT 113 is set according to the function – make or brake – which is to take place when the pressure falls (range setting). Setting is done by rotating the knob (5), at the same time reading the
main scale (9). The differential is set by rotating the differential adjusting nut (19) to the value indicated by the use of the nomogram in fig. 3. The maximum operating pressure is thus the sum of setting pressure and the differential pressure.
Installation
A set of Pg13.5 cable gland is attached to the RT in a separate bag. To ensure IP66 (units with automatic reset) or IP54 (units with external reset) grade of RT enclosure it is necessary to assemble this gland as shown in the fig. 2. If this gland is not used with a cable, a metal blinding should be also assembled.
Example
It is desired to control the liquid level in an open-type collecting tank by the use of a suction pump and an RT 113 controller. Max. liquid level is 130 cm H2O. Differential = 130 - 100 = 30 cm H2O.
1.Connect the pump to terminals 1-4 of the pressure switch.
2.Set the pressure switch for 100 cm H2O by rotating the knob (5).
3.Set the differential adjusting nut (19) at the figure 7 which is found by reading the nomogram in fig. 3.
Liquid level control in open-type tanks Fig. 4 and 5
Example 1
RT 113 is connected to an air bell, code no. 017401366, through a copper tube, approx. 1⁄4 in. / 6,5 mm I.D. at minimum liquid level the lower edge of the air bell should be 20 – 40 mm / 3⁄4 – 11⁄2 in. below the liquide surface.
Maximum liquid temperature: 40 °C / 104 °F
Example 2
RT 113 is connected to the tank side immediately over the buttom through a copper tube, approx. 1⁄4 in. I.D., and fittings code no. 993N3572.
The minimum horizontal tube length A can be read in fig. 6. B is the hight from the tank
connection to pressure switch tube connection. C is maximum liquid level at any time. The tube section A should be run with a slight upward gradient towards the pressure switch. In a narrow space, A can be coiled. Maximum liquid temperature in the copper tube 40 °C / 104 °F.
Example 3
RT 113 is located below the tank. Permissible liquids are raw water, boiler water, sewage with
traces of ammonia, oil, etc. Maximum liquid temperature 90 °C / 194 °F. After installation, bleed out at the pressure switch union.
Example 4
It is desired to locate RT 113 above the tank, and if the liquid is air-absorbent, such as oil, arragement 4 is recommended. By interposing the water tank shown, direct connection between oil and air in the connecting tube is avoided. The tube length “A” is taken from fig. 6. “C” is the difference in hight between the bottom and the water tank and maximum oil level converted into H2O (m W.G.). Maximum liquid temperature in the copper tube 40 °C / 104 °F.
DANSK
Data
Pressostat, type RT 113 Fig. 1 and 2
Max. omgivelsestemperatur: 70 °C / 158 °F Max. prøvetryk: 0.5 bar / 7 psig
Min. prøvetryk: 76 cm Hg vakuum / 25 in Hg vakuum
Indstilling
Fig. 3
A = Områdeindstilling
B = Differens opnået
C = Differensindstilling
RT 113 indstilles efter den funktion - slutte eller bryde - som skal ske ved faldende tryk (områdeindstilling). Selve indstillingen udføres med håndknappen (5) under samtidig aflæsning af hovedskalaen (9). Differensen indstilles med differensknappen (19) efter nomogrammet i fig. 3. Højeste funktionstryk er således lig summen af indstillingstryk og differenstryk.
Montering
Et sæt Pg13,5 kabelforskruning er vedlagt produktet i en separat pose. For at sikre kapslingsgrad IP66 (enheder med automatisk reset) eller IP54 (enheder med ekstern DANSK RESET) er det nødvendigt at montere denne kabelforskruning som vist i fig. 2. Hvis denne kabelforskruning ikke bruges sammen med et kabel, bør der monteres en blindprop (metal skive).
Eksempel
Niveauet i en åben opsamlingsbeholder ønskes reguleret med en sugepumpe og en RT 113 regulator. Max. væskestand 130 cm H2O. Differens = 130 - 100 = 30 cm H2O.
1.Tilslut pumpen til pressostatens klemmer 1-4
2.Indstil med håndknappen (5) pressostaten på 100 cm H2O.
3.Indstil differensknappen (19) på tallet 7, som fremkommer ved aflæsning af nomogrammet i fig. 3.
Niveauregulering i åbne beholdere Fig. 4 and 5
Eksempel 1
RT 113 er tilsluttet en luftklokke, best.nr. 017-401366, v.h.a. et kobberrør med 1⁄4 in. indv. diam. Klokkens underkant skal ved laveste væskestand være neddykket 20 – 40 mm / 3⁄4 – 11⁄2 in.
Eksempel 2
RT 113 er tilsluttet beholderens side lige over bunden v.h.a. et kobberrør med 1⁄4 in. indv. diam.
og fittings best.nr. 993N3572.
Mindste vandrette rørlængde A aflæses i fig. 6. B er højden fra beholderstuds til pressostat. C er den højest forekommende væskestand.
Rørstykket A bør lægges med en svag stigning mod pressostaten. Er pladsen knap, kan A lægges i ringe ovenpå hinanden.
Mas. væsketemp. i kobberrør 40 °C / 104 °F.
Eksempel 3
RT 113 er placeret lavere end beholderen. Tilladelige væsker: råvand, kedelvand, kloakvand med spor af ammoniak, olie m.m.
Max. væsketemp. 90 °C / 194 °F. Efter montagen udluftes ved pressostatens omløber.
Eksempel 4
Ønskes RT 113 anbragt højere end beholderen, og er væsken luftabsorberende som f.eks. olie, anbefales opstilling 4. Ved at indskyde den viste vandbeholder undgås en direkte forbindelse mellem olie og luft i tilslutningsrøret. rørlængden “A” tages fra fig. 6. Væskestanden “C” er afstanden fra bunden af vandbeholderen til max. oliestand omregnet til H2O (m vs). Max. væsketemperatur i kobberrør 40 °C / 104 °F.
DEUTSCH
Daten Abb.1, Abb. 2
Pressostat Typ RT 113
Max. Umgebungstempertur 70°C / 158°F Max. Prüfdruck: 0.5 bar / 7 psi
Max. Prüfdruck: 76 cm / 25 in Hg Vakumm
Einstellung Abb. 3
A = Bereichseinstellung
B = Erreichte Differenz
C = Differenzeistellung
RT 113 is nach der Funktion - Schliessen oder Öffnen - die bei Druckabfall eintreten soll, einzustellen (Bereichseinstellung).
Die Einstellung selbst wird mit dem Einstellknopf
(5) unter gleichzeitiger Ablesung der Hauptskala
(9) vorgenommen.
Die Differenz wird mit der Differezrolle (19) nach dem Nomogramm in Abb. 3 eingestellt. Der obere Ansprechdruck ist also gleich der Summe von Einstelldruck und Differenzdruck.
Montage
Die Kabelverschraubungen PG13,5 sind in einem separaten Beutel verpackt. Zum erreichen des IP66 Schutzgrades (Geräte
mit automatischen Reset) oder IP54 (Geräte mit externen Reset) ist eine Montage dieser Verschraubung notwendig, (siehe Abb. 2.). Wenn diese Kabelverschraubung nicht benötigt wird ist ein Metall Blindstopfen zu verwenden.
Beispiel
Das niveu in einem offenen Sammelbehälter soll mit einer Saugpumpe und einem RT 113 geregelt werden Max. Niveau 130 und H2O, min. Niveau 100 cm H2O. Differenz = 130 - 100 = 30 cm H2O.
1.Pumpe an die Klemmen 1-4 des Pressostats anschliessen.
2.Einstellknopf (5) des Pressostats auf 100 cm H2O einstellen.
3.Differenzrolle (19) auf die Zahl 7, die sich beim Ablesen des Nomogramms in Abb. 3 ergibt, stellen.
Niveauregelung in offenen Behältern Abb. 4, Abb. 5
© Danfoss | DCS (jmn) | 2015.11 |
IC.PI.P10.K2.60 | 520B6246 | 2 |
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