Danfoss RT-112 Manual Pressure Switch User Manual

1. Įvadas

This manual provides essential information for the safe and efficient operation, installation, and maintenance of the Danfoss RT-112 Manual Pressure Switch. The RT-112 is designed for industrial applications, including boiler, air, water, and oil systems, to monitor and control pressure.

Priekyje view of the Danfoss RT-112 Manual Pressure Switch

1 pav.: priekis view of the Danfoss RT-112 Manual Pressure Switch, showing the main housing and pressure connection.

2. Saugos informacija

Always adhere to local regulations and safety standards when installing, operating, or maintaining the pressure switch. Failure to do so may result in injury or damage to equipment.

Prieš bet kokius montavimo ar techninės priežiūros darbus įsitikinkite, kad maitinimas yra atjungtas.
Montavimą ir laidus turėtų atlikti tik kvalifikuoti darbuotojai.
Verify the pressure switch ratings match the system requirements.
Protect the device from excessive vibration, moisture, and extreme temperatures.

3. Sąranka ir diegimas

The Danfoss RT-112 is designed for panel mounting and features a screwed connector for pressure lines.

3.1 Montavimas

Mount the pressure switch securely to a panel using appropriate fasteners. Ensure the mounting surface is stable and free from excessive vibration.

Danfoss RT-112 pressure switch with mounting hardware

Figure 2: The Danfoss RT-112 pressure switch shown with included mounting hardware, including screws and washers.

3.2 Pressure Connection

Connect the pressure line to the 3/8" screwed connector at the bottom of the unit. Use appropriate sealing tape or compound to ensure a leak-free connection.

Close-up of the 3/8 inch pressure connection on the Danfoss RT-112

3 pav. Išsamus view of the 3/8" pressure connection, which is a standard threaded fitting for pressure lines.

3.3 Elektros laidai

The RT-112 features a Normally Open (NO) contact type and SPDT terminal. Refer to the internal wiring diagram and electrical specifications before connecting to the power supply. Ensure the power source matches the switch's current rating (10 Amps, 3 m Amps) ir ttage reikalavimus.

Vidinis view of the Danfoss RT-112 showing wiring terminals and pressure settings

4 pav. Vidinis view of the pressure switch, displaying the electrical terminals, pressure adjustment scales, and internal components.

Šoninė view of the Danfoss RT-112 showing electrical ratings label

5 pav.: šonas view of the pressure switch, highlighting the label with electrical ratings and certifications.

4. Naudojimo instrukcijos

The Danfoss RT-112 is a manual pressure switch, requiring manual adjustment for its setpoint and differential.

4.1 Setting Pressure Setpoint

To adjust the pressure setpoint, remove the cover and locate the adjustment knob. Rotate the knob to align the desired pressure value with the indicator. The internal scale provides readings in bar, psig, kg/cm², and kPa.

Į viršų view of the Danfoss RT-112 showing the adjustment knob

6 paveikslas: viršuje view of the pressure switch, showing the manual adjustment knob used to set the pressure threshold.

4.2 Setting Differential

The differential setting determines the pressure difference between the cut-in and cut-out points. Adjust this setting as required for your application, typically found near the main setpoint adjustment.

5. Priežiūra

The Danfoss RT-112 is designed for minimal maintenance. Regular inspections are recommended to ensure optimal performance and longevity.

Vizuali apžiūra: Periodically check for any signs of physical damage, corrosion, or leaks around the pressure connection.
Ryšio vientisumas: Ensure all electrical and pressure connections remain tight and secure.
Valymas: Keep the exterior of the unit clean and free from dust or debris. Do not use abrasive cleaners.
Kalibravimo patikrinimas: If precise pressure control is critical, periodically verify the switch's setpoint accuracy using a calibrated pressure gauge.

6. Problemų sprendimas

This section provides guidance for common issues encountered with the Danfoss RT-112 pressure switch.

Problema	Galima priežastis	Sprendimas
Switch does not activate at setpoint	Incorrect setpoint; wiring issue; pressure not reaching setpoint; clogged pressure line	Verify setpoint; check wiring connections; confirm system pressure; inspect pressure line for obstructions.
Switch activates erratically	Vibration; pressure fluctuations; faulty switch	Reduce vibration; stabilize pressure; replace switch if faulty.
Leak at pressure connection	Improper sealing; damaged threads	Re-apply sealing tape/compound; inspect threads for damage.

7. Techninės specifikacijos

Atributas	Vertė
Prekės ženklas	Danfoss
Modelis	RT-112
Veikimo režimas	vadovas
Dabartinis reitingas	10 Amps, 3 m Amps
Kontakto tipas	Paprastai atidarytas
Jungties tipas	Prisukamas
Terminalas	Spdt
Grandinės tipas	2 krypčių
Montavimo tipas	Skydo tvirtinimas
Pavaros tipas	Vyrių svirtis
Kontaktinė medžiaga	Varis
Pakuotės matmenys	9 x 4.5 x 3 colio
Svoris	3.3 svaro
Pasiekiama pirmoji data	29 m. sausio 2020 d

Applications of Danfoss RT-112 in HVAC, Turbines, Heavy Engineering, and Air Conditioning Systems

Figure 7: Common industrial applications for the Danfoss RT-112 pressure switch, including HVAC, turbines, heavy engineering, and air conditioning systems.

8. Garantija ir palaikymas

For warranty information and technical support, please contact Danfoss customer service or visit the official Danfoss websvetainę. Išsaugokite pirkimo čekį garantiniams reikalavimams.

Protection plans may be available for extended coverage. Refer to your purchase details for more information on available protection plans.

Dėl papildomos pagalbos galite apsilankyti Danfoss Store on Amazon.

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