Manual

ManualsBrandsAMETEK ManualsSensors5200 Solid State Relay

SENSITIVITY SELECTION

B / W level control systems use the liquid as an electrical conductor to complete the Series 5200 relay sensing circuit, and it is

necessary that the relay have an operating sensitivity greater than the resistance of the liquid to be controlled. The sensitivity

of both models of the Series 5200 relay is determined by the valued of the replaceable R1 resistor used. Since the resistance

of liquids vary over a large range, a wide selection of fixed and variable sensitivities are available as detailed on the chart

below. When operating from contacts of pilot switches, any of the resistors can be used but it is recommended that the

smallest R1 resistor value be used.

FIXED SENSITIVITY

Both the low and high sensitivity relays are shipped from the factory with a complete set of fixed resistors. The proper R1

resistor must be selected during installation as shown in the wiring diagrams. Fixed sensitivity type relays are recommended

when operating from pilot switch contacts or when the liquid being controlled is always the same.

VARIABLE SENSITIVITY

Both the low and high sensitivity relays are available with variable resistance potentiometers. A kit can be supplied for field

installation. The low sensitivity model has two variable sensitivity ranges and the high sensitivity model has three variable

sensitivity ranges as shown in the table below. Variable sensitivity models are recommended for applications where the relay

is to be used on a variety of liquids. They also should be used for interface detection or on applications where foam is present

and it is necessary to operate on the liquid phase only.

SENSITIVITY SELECTION CHART

ELECTRODE LEAD WIRES

Shielded cable is not required, and ordinary insulated wire can be used for electrode leads. Lead wires should be isolated

from, not run in the same conduit with, power and load carrying circuits to avoid direct coupling with these circuits. While

capacitance of the lead wire to ground has some slight affect on sensitivity, this factor need only be considered when the relay

is located more than 900 feet away from the electrodes. (Reference the SENSITIVITY SELECTION CHART)

5200 SERIES SOLID-STATE RELAY CATALOG NUMBERING SYSTEM

5200 - LF1 - N1

SEE CATALOG SECTION 1500 FOR ENCLOSURE DIMENSIONS

Note: D1 water, glycols, alcohols and granular solids may require the 2.2, 5.6 or 12.0 Megohms R1 resistors depending upon

their purity or moisture content.

SENSITIVITY RESISTOR

SENSING CIRCUIT

LIMITATIONS

MAXIMUM OPERATING

SENSITIVITY

Nominal

Resistance

Part

Number

Maximum

Capacitance

Electrode Wire to

Ground

Maximum

Lead Wire

Lengths in

Feet

Direct

Operation

Inverse

Operation

LOW SENSITIVITY

RELAY

270 Ohms

470 Ohms

1,000 Ohms

1,800 Ohms

3,900 Ohms

10,000 Ohms

22,000 Ohms

Variable

04154900

04155000

04138300

04155100

04155200

04149400

04138400

52110205

52110206

3.7 Microfarads

1.7 Microfarads

.80 Microfarads

.44 Microfarads

.20 Microfarads

.08 Microfarads

.036 Microfarads

.80 Microfarads

.036 Microfarads

15,000

11,000

5,000

2,000

900

15,000

900

200 Ohms

340 Ohms

730 Ohms

1,300 Ohms

2,800 Ohms

7,300 Ohms

16,000 Ohms

100-700 Ohms

.6K-15K Ohms

330 Ohms

570 Ohms

1,200 Ohms

2,200 Ohms

4,800 Ohms

12,000 Ohms

26,000 Ohms

200-1200 Ohms

1K-24K Ohms

HIGH SENSITIVITY

RELAY

10,000 Ohms

22,000 Ohms

68,000 Ohms

.33 Megohms

.82 Megohms

2.2 Megohms

5.6 Megohms

12.0 Megohms

Variable

04149400

04138400

04138500

04138600

04138800

04138900

04139000

04139100

52120205

52120206

52120207

120 Microfarads

55 Microfarads

18 Microfarads

4.0 Microfarads

1.5 Microfarads

0.5 Microfarads

0.2 Microfarads

0.1 Microfarads

12 Microfarads

1.2 Microfarads

0.2 Microfarads

50,000

35,000

12,000

4,000

2,000

50,000

28,000

4,000

9,600 Ohms

21,000 Ohms

66,000 Ohms

.31 Megohms

.80 Megohms

2.1 Megohms

5.4 Megohms

11.6 Megohms

2K-100K Ohms

7K-1.0 Megohms

47K-5.0 Megohms

9,600 Ohms

21,000 Ohms

66,000 Ohms

.32 Megohms

.81 Megohms

2.2 Megohms

5.6 Megohms

12.0 Megohms

2K-100K Ohms

7K-1.0 Megohms

47K-5.0 Megohms

RELAY

CODE

SENSITIVITY

RESISTANCE

TYPICAL LIQUIDS

270 ohms All metallic circuits, B / W Unifloat®

470 ohms Strong electrolytes: Plating solutions

1,000 ohms Weak electrolytes: Ammonium hydroxide, borax, acetic acid

1,800 ohms

Most food processing applications: Beer, wine, fruit juices, milk,

buttermilk

3,900 ohms

Highly corrosive acid or caustic solutions where electrode current

must be minimized to extend electrode life: Hydrochloric acid,

sulfuric acid. etc.

10,000 ohms

Ordinary water with medium to high mineral content, sewage,

water soluble oil and starch solutions.

LF1 Fixed

22,000 ohms

Most water with low mineral content, soft water - (not distilled or

de-ionized water). Use High Sensitivity Relay Control

LV1

Variable

100-700 ohms

Same as above for 270, 470, and 1,000 ohms Fixed Relays

LV1

Variable

.6K-15K ohms

Same as above for 1,800 thru 22,000 ohms Fixed Relays

10,000 ohms

Ordinary water with medium to high mineral content, sewage,

water soluble oil and starch solutions, long distance applications.

22,000 ohms

Water with low mineral content, soft water - (not distilled or de-

ionized water), sugar syrup solutions, long distance applications.

68,000 ohms

Steam condensate, corn syrup, strong alcohol solutions up to

50%

330,000 ohms Alcohol solutions up to 70%

820,000 ohms

De-ionized or distilled water, 95% glycerin, 90% Hydrogen

peroxide, 95% ethyl alcohol, granular solids with high moisture

content

2.2 Megohms

Glacial acetic acid, acetone, granular solids with high moister

content

5.6 Megohms M.E.K. (Methyl ethyl keytone)

HF2 Fixed

12.0 Megohms Anhydrous ammonia

HV3

Variable

2K-100K ohms

Same as above for 10,000 thru 68,000 ohms Fixed Relays

HV4

Variable

7K-1.0

Megohms

Same as above for 330,000 thru 820,000 ohms Fixed Relays

HV5

Variable

47K-5.0

Megohms

Same as above for 2.2 and 5.6 Megohms Fixed Relays

RELAY

CODE

ENCLOSURE TYPE

Open Chassis

NEMA 1, General Purpose

NEMA 4, Weather Proof, Watertight / Dust Tight

N4X

NEMA 4X, Fiberglass, Watertight, Dust Tight, Corrosion Resistant

NEMA 7, Class I, Group D; Class II, Groups E, F & G

N12

NEMA 12, Oil Tight