Ametek 5200 Solid State Relay Instrukcja Użytkownika Pobierz pdf

5200 Solid State Relays

5200 Series

INSTALLATION & SERVICE MANUAL

PRINCIPLE OF OPERATION

B/W 5200 Solid State Controls are offered in two basic types for use in a wide

range of low and high sensitivity applications. Both are designed to operate

on either 115 or 230 volts AC at 50/60 hertz. Both incorporate a low voltage

sensing circuit. Both are also capable of performing control functions directly

from electrodes suspended in a well or tank, the B/W Uniﬂ oat level sensing

system, or various pilot devices such as pressure, ﬂ ow and limit switches,

thermostats and pushbuttons, etc.

In addition, their operating characteristics are virtually unaffected by ambient

temperatures ranging from -40°F to +180°F, or by variations from 80% to

110% of their rated voltage. Both controls are also furnished with a complete

set of R1 ﬁ xed sensitivity resistors or a variable resistance potentiometer

to permit adjustment of operation based on the resistance of the liquid or

material to be controlled. See tables below.

5200-LF1 Low Sensitivity Control

The basic components of this control are a transformer, a circuit board with

voltage divider circuit, a silicon controlled rectiﬁ er (SCR), and a load to provide

isolated DPDT contacts. The sensing circuit voltage is 8.0 volts ac.

5200-HF2 High Sensitivity Control

This control is similar to the 5200-LF1, but with two basic differences: First, a

rectiﬁ er is used to convert the sensing circuit voltage from ac to 9.6 volts dc;

second, a ﬁ eld effect transistor (FET) is added to provide higher sensitivity.

This permits positive operation on liquids with very high resistance.

Since the voltage divider circuit compares the liquid resistance to the R1

sensitivity resistor on both 5200-LF1 and 5200-HF2 controls it is important that

the R1 resistor selected be rated higher than the resistance of the liquid or

other sensing circuit.

Direct Operation

In direct operation, the load relay is energized when the level sensing

circuit is completed. When operating from electrodes for pump down

operation, and liquid is below lower electrode, a high resistance is sensed

across terminals 13 & 14, and a negative, or out-of-phase, signal is fed to the

SCR.

When liquid rises to touch the upper electrode, a low resistance is sensed

across terminals 13 & 14, and the signal to the SCR becomes positive, or

in-phase, turning the SCR on, which, in turn, energizes the load relay to start

the pump.

When load relay is energized, the holding circuit contact (4-7) closes to hold

in the relay through the lower electrode and the liquid resistance until liquid

level falls below the lower, or pump stop, electrode, at which time the SCR

turns off and de-energizes the load relay to stop the pump.

Inverse Operation

In inverse operation, load relay is de-energized when the level sensing circuit

is completed. In this mode of operation, function of load relay is reversed.

When operating from electrodes for pump up operation, and liquid is below

lower electrode, a positive, or in-phase, signal turns the SCR on, energizing

the load relay to start the pump.

When liquid rises to touch the upper electrode, a negative, or out-of-phase,

signal turns the SCR off, de-energizing the load relay and stopping the pump.

The holding circuit contact (1-7) closes, keeping the load relay de-energized

until the liquid again falls below lower electrode.

5200-HF2 High Sensitivity Control

R1 Sensitivity

Resistor

Maximum Lead

Wire Lengths*

Application

Recommondations

10,000 ohms 50,000 feet Ordinary water with medium to highmineral

content, sewage, water soluble oil and starch

solutions, long distance applications

22,000 ohms 50,000 feet Water with low mineral content (soft - not

distilled or demineralized), sugar syrup

solutions, long distance applications.

68,000 ohms 50,000 feet Steam condensate, corn syrup, strong alcohol

solutions up to 50%

330,000 ohms 50,000 feet Alcohol solutions up to 70%

820,000 ohms 35,000 feet Deionized or distilled water, 95% glycerine, 90%

hydrogen peroxide, 95% ethyl alcohol, granular

solids with high moisture content

2.2 megohms 12,000 feet Glacial acetic acid, acetone, granular solids with

some moisture content

5.6 megohms 4,000 feet M.E.K. (Methyl ethyl ketone)

12.0 megohms 2,000 feet Anhydrous ammonia

NOTE: DI water, glycols, alcohols and granular solids may require the 2.2, 5.6

or 12.0 megohms R1 resistor depending upon their purity or moisture content.

5200-LF1 Low Sensitivity Control

R1 Sensitivity

Resistor

Maximum Lead

Wire Lengths*

Application

Recommondations

270 ohms 15,000 feet All metallic circuits, B/W Controls Uniﬂ oat

470 ohms 15,000 feet Strong electrolytes: Plating solutions.

1,000 ohms 15,000 feet Weak eletrolytes: Ammonium hydroxide, borax,

acetic acid

1,800 ohms 11,000 feet Most food processing applications: Beer wine,

fruit juices,milk buttermilk

3,900 ohms 5,000 feet Highly corrosive acid or caustic solutions where

electrode current must be minimized to extend

electrode life: Hydrochloric acid, sulfuric acid,

etc

10,000 ohms 2,000 feet Ordinary water with medium to high mineral

content, sewage, water soluble oil and starch

solutions.

22,000 ohms 900 feet Sugar syrup solutions, most water with low

mineral content. (Soft water-not distilled or

deionized water. Use 5200-HF2 Control)

*Distance shown in the tables above are based upon the use of

two 18-gauge lead wires installed in 1/2” diameter conduit.

Basic Speciﬁ cations

Dual Voltage

Either 115 or 230 volts AC at 50/60 hertz

Contacts

Silver Cadmium Oxide

Contact Ratings

10 amperes at 120 or 240 volts AC or 28 volts DC,

1/4 hp at 120 volts AC. and 1/3 hp at 240 volts AC

Arrangement

Double pole, double throw load contacts plus single pole,

doublethrow holding circuit contacts

Power Required

9 volt-ampere, 6 watt

Operating Temp.

-40°F to 180°F

Low Energy

Sensing Circuit

AC - 8 volts (less than 30 milliamperes) for 5200-L,

DC - 9.6 volts (less than 1 milliampere) for 5200-H

1 2 3 4

Podsumowanie treści

Strona 1 - 5200 Series

5200 Solid State Relays5200 Series INSTALLATION & SERVICE MANUALPRINCIPLE OF OPERATIONB/W 5200 Solid State Controls are offered in two basic types

Strona 2

2INSTALLATION INSTRUCTIONSThese instructions relate primarily to the B/W electrode system of liquid level sensing. Call 1-800-635-0289 to request the

Strona 3 - 05-034/03

3663%2)%32%,!905-034/034!.+%,%#42/$%(/,$%205-034!243!#,INE6OR6OR(Z4/05-034!24%2#HASSIS'ROUN

Strona 4 - 5/07.Z152

Komentarze do niniejszej Instrukcji

Brak uwag

Ametek 5200 Solid State Relay Instrukcja Użytkownika

Przeglądaj online lub pobierz Instrukcja Użytkownika dla Czujniki Ametek 5200 Solid State Relay. AMETEK 5200 Solid State Relay User Manual Instrukcja obsługi

Podsumowanie treści

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Czujniki Ametek 5200 Solid State Relay