Gems Sensors & Controls 67 Operating Manual

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Page 1

Notes:

Form 670

Sheet P/N 100501-1

Rev. F

Warrick® Series 67

Intrinsically Safe Multi-Function Control

Installation and Operation Bulletin

Table of Contents

Page 3 Installation Instructions: Safe Sensing Circuits- General Information

- Mounting Location

- Wiring

Page 4 Installation Instructions: Intrinsically Safe Sensing Circuits

- Grounding

- Sensor Wiring

Page 5 Installation Instructions: Intrinsically Safe Sensing Circuits

Page 6 Installation Instructions: Intrinsically Safe Sensing Circuits

- Alarm Channel Wiring

- Alternation Circuitry

Page 7 Installation: High Voltage Circuits

- AC Supply

- Grounding

- Output Contacts

Page 8 Control Diagram

Page 9 Technical Information

- Specification

- Ordering Information

- Module Replacement

Page 10 Technical Information

- Module Replacement

Page 11 Operation Instructions

- Single Level Service: Contact Operation

- Single Level Service: Alarm Functions

Page 12 Operation Instructions

- Differential Level Service: Simplex

Page 13 Operation Instructions

- Differential Level Service: Duplex

Gems Sensors Inc. One Cowles Road Plainville, CT 06062-1198 Tel: 860-793-4579 Fax: 860-793-4580

Page 14 General Control Information

Page 15 Sample Wiring Diagram

Page 2

Notes:

Sample Wiring Diagram

Ground

Ch 4

Ch 3

Alarm

Figure 5

G L2 L1 NO C NC

Pump #2

Starter

Circuit

High

Level

Low

Level

Bell

Pump #1

Starter Circuit

Non-Hazardous Area

Hazardous

Area

C NO NC

Channel 4 Channel 3 Channel 2 Channel 1

Ch 4 Ch 3 Ch 2 CH1

LED LED LED LED

S4 G S3 HS2 G LS2 HS1 G LS1 2-1 1-2 G SIL

C NO NC C NO NC C NO NC

DIP Switch

Alternate

2-1 1-2

Down Pump Up

Silence

Auto

1-2 2-1

Series

67C1C0A

Control

Note: For applications that do not require duplex alternation, a jumper must be placed from “G”

to “1-2 terminal

Non-Hazardous Area

Hazardous Area

High Level

Alarm

Standby

Pump Start

Duty Pump

Start

Pump(s)

Stop

Low Level

Alarm

Page 3

Control Diagram

Technical Information

Figure 2

AC Supply

G L2 L1 NO C NC

Load 4* Load 3* Load 2* Load 1*

C NO NC

C NO NC C NO NC C NO NC

CH 3/4 Alarm

* Form A & B contacts available

SPECIFICATIONS

Contact Design: Standard SPDT (1 form C): one normally open (N.O.) and one normally closed (N.C.),

non powered contacts Contact Ratings for each channel. Optional 1 Form A (N.O.) and 1 Form B (N.C.) isolated Load Contact Ratings: Standard Form C- 10A @ 120/240 VAC resistive and 30 VDC resistive, 1/3 Hp @ 120/ 240 VAC. Optional Form A & B - 5A @120/240 VAC and 30 VDC resistive, 1/8 Hp @ 120/240 VAC.

Bell Contacts: 1 Form C (N.O.), N.C., C) Bell Contact Ratings: 10A @ 120/240 VAC and 30 VDC resistive, 1/3 Hp @ 120/240 VAC Contact Life: Mechanical - 10 million operations. Electrical - 1,000,000 operations minimum at rated load. Primary Voltage: 120 or 240 VAC models + 10% - 15%, 50/60 Hz. Supply Current: Relays energized - 60ma @ 120 VAC, 30ma @ 240 VAC Secondary Circuit: 12 VAC RMS voltage on probes, 6ma current RMS. Sensitivity: Models operate from 4700-100,000 ohms maximum specific resistance

Temperature: -40° to 150° F Ambient Electronics Module: Solid state components enclosed in a black nylon housing Terminals: Standard Form C removable terminal strip containing a size 4 pan head screw with a clamping plate.

Will accept up to two (2) #14 AWG wires per terminal. Optional Form A & B relay board will accept up to one (1) #14 AWG wire per terminal. Use copper (60-75° C) wire only. Torque to 20 inch pounds.

Listings: U.L. Intrinsically Safe (UL 913) File Number: E87112

ORDERING INFORMATION

67 X X X X X

Channel 4 Channel 3 Channel 2 Channel 1

Ch 4 Ch 3 Ch 2 CH1

LED LED LED LED

Non-Hazardous

Area

Hazardous Area

Note: For applications that do not require duplex alternation, a jumper wire must be placed from the “G” to “1-2” terminal.

S4 G S3 HS2 G LS2 HS1 G LS1

Ch 4 Ch 3 Ch 2 CH1

{

Sensors

DIP Switch

{

Alternate

2-1 1-2

2-1 1-2 G SIL

Down Pump Up

Silence

Auto

1-2 2-1

O N

A L A R M

F F

343 2

DIP Switch Blow Up

M O D E

4.7K

10K

26K

50K

100K

120 VAC

240 VAC

1 Form A & B (N.O.) & N.C. Isolated) for

each channel

1 Form C (N.O., N.C.)

for each channel

None

NEMA 1

NEMA 4

AC on Probe Circuit

DC on Probe Circuit

MODULE REPLACEMENT

If the electronic module needs to be replaced:

1. Turn off power to the control and load devices

2. Remove the metal partition located across the center of the module ( when required).

3. Remove all field wiring terminal blocks from the electronic module. The field wires do not need to be removed from the terminal blocks. The terminal blocks separate from the board as show in figure 8-1.

4. Remove the four (4) retaining screws from the base of the electronic module. The module can now be removed from the control panel.

5. Install a new module and reinstall all of the terminal blocks.

6. Reinstall the metal partition (when required).

7. Set all DIP switches according to previous instructions.

Page 4

Technical Information: Module Replacement

Installation: High Voltage Circuits

Terminal Strip

Removal

Diagram 3

A.C., Form C Load Contacts

and Sensor Terminals

A.C. SUPPLY:

Connect the incoming supply HOT lead to the L1 terminal, NEUTRAL lead to the L2 terminal and EARTH GROUND lead to the “G” Terminal. Note: the incoming power supply should have the same electrical characteristics as indicated on the control’s label.

GROUNDING

Terminal “G” on the supply line/load side terminal strip is a redundant system ground terminal and must be connected to the earth ground buss of the panel’s AC supply line feeder.

OUTPUT CONTACTS

Channels 1-4: Each channel has a dedicated non-powered contacts. These can be either Form C or Form A & B depending on the model. These contacts will change state when their respective channel activates. In DIRECT mode the relay will energize and the contacts will change state when the probe circuit sensor closes. In INVERSE mode the relay will energize and contacts will change state upon power up. The channel will then de-energize and return the contacts to their shelf state when the probe circuit sensor closes.

Form C- This contact configuration consists of one (1) Normally Open contact and one (1) Normally Closed contact. There are three terminals for electrical connections, N.O., N.C. and Common. Each terminal will accept up to two (2) #14 AWG wires

Form A & B: This contact configuration consists of one (1) Normally Open contact and one (1) Normally Closed contact which are electrically isolated from each other. There are two terminals for each contact. Each will accept one (1) # 14 AWG wire.

Form A & B Contacts

Separation

Point

Terminal Strip

Removal

Separation

Point

Field wiring

Alarm Bell: The alarm bell contacts are non-powered Form C construction. This contact configuration consist of consists of one (1) Normally Open contact and one (1) Normally Closed contact. There are three terminals for electrical connections, N.O., N.C. and Common. Each terminal will accept up to two (2) #14 AWG wires

When the output contacts are used to drive loads they should be wired in series with the load. This series branch circuit should then be connected across a power source compatible with the load. See figure 1.

Figure 1

Alarm Bell Contacts

See Output Board Options

N.C. N.O.CGL2L1

Fault

VAC or 10 A @ 30 VDC

Open

Fault

Hot

Neutral

Channel 1

N.C.N.O. N.C.N.C.N.C. N.O.N.O.N.O.

Load Contacts

Series 67 - Option A

Contact Board

Channel 2

N.C.N.O.

Load

1/8 Hp 120, 240 VAC 5A @ 120/240

VAC or 5 A @ 30 VDC

Channel 4Channel 3

Load

Series 67 - Option C

Contact Board

Channel 1

N.C. N.O. N.C.N.C.N.C.C N.O.N.O.N.O. CCC

Channel 2

Load

1/3 Hp 120, 240 VAC 10A @ 120/240

VAC or 10 A @ 30 VDC

Channel 3

N.C. N.O. C

Load

Channel 4

Open & Close on Fault Contacts Rated

1/3 Hp 120, 240 VAC 10 A @ 120/240

Earth Ground

10 7

Page 5

Installation: Intrinsically Safe Sensing Circuits

Operation Instructions

ALARM CHANNEL WIRING:

SILENCE CIRCUITRY:

A normally open pushbutton is required for the Series 67’s alarm silence circuitry. The N.O. pushbutton must be connected to the “SIL” and “G” terminals. For more information about the operation of the silence circuitry consult the Alarm Operation section on page 11. NOTE: THE SILENCE PUSHBUTTON IS CONNECTED TO THE

INTRINSICALLY SAFE CIRCUITRY. THEREFORE THE PUSHBUTTON AND ITS ASSOCIATED WIRING SHOULD BE SEPARATED FROM THE NON-INTRINSICALLY SAFE WIRING AND DEVICES. CONSULT GENERAL WIRING INFORMATION FOR MORE INFORMATION.

ALARM DIP SWITCHES:

The alarm DIP switches for channels 3 and 4 can be set to enable the bell contacts for one or both alarm channels. However, this does not disable the alarm contact for that channel. Table 4 covers the DIP switch settings for various alarm conditions.

Table 4

DIP Switch Settings

Off - Down

On - Up

Off - Down

On - Up

Off - Down

On - Up

Bell Contact Status

Channel 3 - Off - Disabled

Channel 4 - Off - Disabled

Channel 3 - On - Enabled

Channel 4 - Off - Disabled

Channel 3 - On - Enabled

Channel 4 - On - Enabled

Channel 3 - Off - Disabled

Channel 4 - On - Enabled

The Series 67 multi-function control can be used for many different applications including: pump control, solenoid valve control and alarm activation. The following instructions cover the most common applications. If your application is not included, contact Gems Sensors or our authorized representative in your area for assistance.

The operating instructions are broken up into two general categories: SINGLE and DIFFERENTIAL LEVEL SERVICE. The alarm functions are covered under the SINGLE LEVEL SERVICE heading while the pumping and solenoid valve functions are covered under the DIFFERENTIAL LEVEL SERVICE heading.

SINGLE LEVEL SERVICE: CONTACT OPERATION

LOAD CONTACTS: CHANNELS 1-4

The activation of these contacts is dependent upon the type of sensor (normally open or closed) and the mode of operation (direct or inverse). The table 6 gives the sensor activation condition, DIP switch settings, contact status and LED status for various applications and sensors.

Table 6

Application

High Level Alarm Normally Open Float

High Level Alarm Normally Closed Float

Low Level Alarm Normally Open Float

Low Level Alarm Normally Closed Float

Warrick Sensor

FE - Reed Switch Float for M Tilt Float

Sensor” Alarm

Activation Condition

Closes on Rising Level

Opens on Rising Level

Opens on Falling Level

Closes on Falling Level

DIP Switch

Setting

Inverse UP “I”

Direct DOWN “D”

Inverse UP “I”

Relay Status

Upon Alarm

De-Energized

LED Status

Upon Alarm

OFF

ALTERNATION CIRCUITRY

AUTO OR MANUAL:

Series 67’s built-in alternator can be used to automatically alternate between two loads controlled by channels 1 and 2. However, the automatic alternation may be by-passed to become a manual operation. This can be accomplished with the use of jumper wires or a three position switch connected to the 2-1, 1-2 and “G” terminals. Table 5 covers the jumper connections for manual alternation. Refer to figure 1 for more wiring information on the wiring of the three position selector switch. NOTE: THE MANUAL ALTERNATION CIRCUITRY IS

CONSIDERED INTRINSICALLY SAFE. THEREFORE THE SELECTOR SWTICH, JUMPER WIRES AND THEIR ASSOCIATED WIRING SHOULD BE SEPARATED FROM NON-INTRINSICALLY SAFE WIRING DEVICES. CONSULT GENERAL WIRING INFORMATION FOR MORE INFORMATION ON INTRINSIC SAFETY.

Alternation

Status

Automatic*

Manual 1-2

Manual 2-1*

Required

Terminals 1-2 to “G”

Terminals 2-1 to “G”

* For non-alternation applications jumper 1-2 to “G”

** The position of the 1-2 and 2-1 indicating LED’s is dependent on the application. The position changes for pump-up or pump-down. Consult control diagram figure 6-1 for more information.

Jumper

None

Table 5

Notes

LED Status

Pump-Down*

Either

No. 1

No. 2**

LED Status

Pump-Up*

Either

No. 1

No. 2**

High Level Alarm Conductance Probes

Low Level Alarm Conductance Probes

UNKNOWN SENSOR Normally Open

UNKNOWN SENSOR Normally Closed

3R, 3T, 3W, 3Y, 3H or 3S

Probes in Contact with Conductive Liquid

Probes not in Contact with Conductive Liquid

Closes on Fault

Opens on Fault

Invers UP “I”

Direct DOWN “D”

Inverse UP “I”

Direct DOWN “D”

De-Energized

OFF

SINGLE LEVEL SERVICE: ALARM FUNCTIONS

BELL CONTACTS:

Under NORMAL operating conditions the alarm bell relay is held energized. The relay will de-energize to activate an alarm device when an abnormal condition exists on either channels 3 and/or 4. Either one or both alarm bell circuits can be disabled by adjusting the alarm DIP switches. Consult table 4 for more information on the bell DIP switch settings.

SILENCE CIRCUITRY:

Should an abnormal condition exist on either channels 3 and/or 4 the normally closed (N.C.) alarm bell relay contacts will close, activating an alarm device. The N.C. alarm bell contacts can be returned to their normal state (open) silencing the alarm, by depressing a normally open pushbutton connected to the “SIL” and “G” terminals. This will NOT affect the load contacts for channels 3 or 4 as they act independent from the alarm bell contacts.

Page 6

Operation Instructions

DIFFERENTIAL LEVEL SERVICE:

The following operating instructions are based on correct DIP switch settings and sensor types. Any deviation from these requirements may result in incorrect system operations. Consult table 7 for further instructions.

Table 7

LED

Status Sensor Closed

OFF

Application

Simplex Pump-Down or Solenoid Valve Drain

Simplex Pump-Up or Solenoid Valve Fill

Duplex Pump-Down Common Pump Stop

Duplex Pump-Up Common Pump Stop

Duplex Pump-Down Separate Pump Stop

Duplex Pump-Up Separate Pump Stop

Warrick Sensor

Normally Open: F, M, FE, FOE 3R, 3T, 3W, 3Y, 3H or 3S

DIP

Switch

Setting

Direct

“Down”

Inverse

“Up”

Direct

“Down”

Inverse

“Up”

Direct

“Down”

Inverse

“Up”

Activation

Condition

Sensor Closes on Rising Level

Contact

Status

N.O. - Closes N.C. - Opens

N.O. - Opens N.C. - Closes

N.O. - Closes N.C. - Opens

N.O. - Opens N.C. - Closes

N.O. - Closes N.C. - Opens

N.O. - Opens N.C. - Closes

Installation: Intrinsically Safe Sensing Circuits

DIFFERENTIAL LEVEL SERVICE:

Channels 1 and 2 are designed to provide differential on/off points to control pumps, solenoid valves or other equipment. These channels can also be used in single level service for alarms and cutoffs, however the control’s built-in silence circuitry and bell contacts cannot be used. Consult the Alarm section for more information.

When channels 1 and 2 are used for differential level service, the associated sensors must be normally open. The Inverse/Direct DIP switches must also be set to the proper mode for each channel to achieve the correct operation. Table 3 gives the correct sensor to terminal connections an DIP switch settings for various applications.

FOR APPLICATIONS THAT DO NOT REQUIRE DUPLEX ALTERNATION, A JUMPER WIRE MUST BE PLACED FROM THE “G” TO “1-2” TERMINAL.

Table 3

Application

Simplex Pump-Down or Solenoid Valve Drain**

Simplex Pump-Up or Solenoid Valve FillII

Duplex Pump-Down Common Pump Stop

Duplex Pump-Up Common Pump Stop

Sensor

Contact Style

Normally Open Closes on Rising Level

Sensor

Terminal Connections

Start Pump / Open Valve - HS1 & G* Stop Pump / Close Valve - LS1 & G*

Start Pump / Open Valve - LS1 & G* Stop Pump / Close Valve - HS1 & G*

Duty Pump Start - HS1 & G* Standby Pump Start - HS2 & G* Duty and Standby Pump Stop - LS1 & G* Jumper - LS1 and LS2

Duty Pump Start - LS1 & G* Standby Pump Start - LS2 & G* Duty and Standby Pump Stop - HS1 & G* Jumper - HS1 and HS2

DIP Switch

Setting

Direct - Down Channels 1 or 2

Inverse - Up Channels 1 or 2

Direct - Down Channels 1 or 2

Inverse - Up Channels 1 or 2

DIFFERENTIAL LEVEL SERVICE: SIMPLEX

Simplex Pump Down- Should the level rise to the PUMP START sensor the N.O. load contacts will close

starting the pump. The pump will remain running until the level recedes below the PUMP STOP sensor and the load contacts open.

Simples Pump UP- Should the level recede below the PUMP START sensor the N.O. load contacts will close starting the pump. The pump will remain running until the level rises to the PUMP STOP sensor and the load contacts open.

Solenoid Valve Drain- Should the level rise to the VALVE OPEN sensor the N.O. load contacts will close energizing the normally closed valve to open. The valve will remain open until the level recedes below the VALVE CLOSE sensor and the load contacts open

Solenoid Valve Fill- Should the level recede below the VALVE OPEN sensor, the N.O. load contacts will close energizing the normally closed valve to open. The valve will remain open until the level rises to the VALVE CLOSE sensor and load contacts open.

Duty Pump Start - HS1 & G* Duplex Pump-Down Separate Pump Stops

Duplex Pump-Up Separate Pump Stops

Note 1: If conductance probes are being used, only one “G” connection is required. Terminal “G” must be

Normally Open Closes on Rising Level

Standby Pump Start - HS2 & G*

Duty and Standby Pump Stop - LS1 & G*

Jumper - LS2 and G*

Duty Pump Start - LS1 & G*

Standby Pump Start - LS2 & G*

Duty and Standby Pump Stop - HS1 & G*

Jumper - HS2 & G*

Direct - Down Channels 1 or 2

Inverse - Up Channels 1 or 2

grounded to the vessel if metallic. If the electrode fitting being used has a metallic body and is supported directly upon a metallic vessel, the ground connection is facilitated by securing that end of the ground connector beneath the head of one of the screws which fasten the terminal housing to the body of the fitting. When the vessel is non-metallic, terminal “G” must be connected to an additional electrode of length equal to or longer than, the longest electrode. If wire suspension electrodes are being used, more than one Ground/ Reference probe may be required.

** Note 2: This setup is based on the use of a Normally Closed (N.C.) solenoid valve that energizes to open when power is applied to the coil circuit.

Page 7

Installation: Intrinsically Safe Sensing Circuits

Operation Instructions

GROUNDING:

The four mounting holes on the Series 67 provide an electrical connection for earth grounding between the control’s internal solid state circuitry and the enclosure chassis. To insure proper grounding, use only metal screws and lock washers when mounting this control. Terminal G on the supply line/load side terminal strip is a redundant system ground terminal and must be connected to earth ground buss of the control’s AC supply line feeder.

Note:

1. Intrinsically safe terminals can be connected to any non-energy generating or storing switch device such as a pushbutton, limit or float type switch or any Warrick electrode and fitting assembly.

2. To prevent electrical shock from supply line/load side powered connections, the Series 67 should be mounted in a tool accessible enclosure of proper NEMA rated integrity.

3. For U.L. 913 Listed panels, a metallic partition may be necessary to provide adequate spacing between non-intrinsically safe and intrinsically safe wiring and /or terminals.

4. For additional guidance on “Hazardous Location Installation” and “Intrinsically Safe Devices”, consult ANSI/ISA standard RP 12-6 or NEC articles 500-516 and local codes.

SENSOR WIRING

The Series 67 control has four independent intrinsically safe channels, which can be connected to different types of sensors including floats, conductance probes, pressure switches and other non-powered contacts or sensors. The connections of the sensors to the terminals will not vary with normally open or closed sensors. However, the Inverse/Direct DIP switches must be set to the proper mode for each channel to achieve the correct operation. Consult tables 2 and 3 for the proper DIP switch setting for various sensors and functions.

The following sections cover the intrinsically safe sensor connections for single and differential level service.

SINGLE LEVEL SERVICE:

All four channels can be used for single level service. Each channel is independent and can be used for its own single point function. However, only channels 3 and 4 have the alarm bell and silence capabilities. Consult the alarm sections for more information regarding the installation and operation of the alarm circuitry. Table 2 covers the sensor style to terminal connections for all four channels.

Table 2

Sensor Style

Normally Open: Closes on Alarm Condition

Normally Open: Opens on Alarm Condition

Terminal

Connections

Channel 1 - HS1 & G* Channel 2 - HS2 & G* Channel 3 - S3 & G Channel 4 - S4 & G

DIP Switch Settings

Inverse Mode - Up Position

Direct Mode - Down Position

DIFFERENTIAL LEVEL SERVICE: DUPLEX PUMP DOWN WITH ALTERNATION

Common Pump Stop- The pumps will alternate each cycle with the duty pump starting when the level rises to the

DUTY PUMP START sensor and stops when the level recedes below the PUMP(S) STOP sensor.

If the duty pump fails or cannot meet the demand of the system and the level rises to the STANDBY PUMP START sensor, the standby pump will be started and will continue in operation until the level recedes below the PUMP(S) STOP sensor.

Separate Pump Stops- The pumps will alternate each cycle with the duty pump starting when the level rises to the DUTY PUMP START sensor and stops when the level recedes below the DUTY PUMP STOP sensor.

If the duty pump fails or cannot meet the demand on the system and the level rises to the STANDBY PUMP START sensor, the standby pump will be started and will continue in operation until the level recedes below the STANDBY PUMP STOP sensor.

DIFFERENTIAL LEVEL SERVICE: DUPLEX PUMP UP WITH ALTERNATION

Common Pump Stop- The pumps will alternate each cycle with the duty pump starting when the level recedes

below the DUTY PUMP START sensor and stops when the level rises to the PUMP(S) STOP sensor.

If the duty pump fails or cannot meet the demand of the system and the level recedes to the STANDBY PUMP START sensor, the standby pump will be started and will continue in operation until the level rises to the PUMP(S) STOP sensor.

Separate Pump Stops- The pumps will alternate each cycle with the duty pump starting when the level recedes to the DUTY PUMP START sensor and stops when the level rises to the DUTY PUMP STOP sensor.

If the duty pump fails or cannot meet the demand on the system and the level recedes to the STANDBY PUMP START sensor, the standby pump will be started and will continue in operation until the level rises to the STANDBY PUMP STOP sensor.

DIFFERENTIAL LEVEL SERVICE: DUPLEX PUMP DOWN WITHOUT ALTERNATION

Same operation as above disregarding the alternation sequence. Use appropriate jumper to determine manual pump start sequence. Refer to table 5 for the manual alternation jumper information.

DIFFERENTIAL LEVEL SERVICE: DUPLEX PUMP UP WITHOUT ALTERNATION

Same operation as above disregarding the alternation sequence. Use appropriate jumper to determine manual pump start sequence. Refer to table 5 for the manual alternation jumper information.

Normally Closed: Closes on Alarm Condition

Normally Closed: Opens on Alarm Condition

* Note: Channels 1 & 2 cannot activate the alarm bell contacts and do not have the silence/acknowledge capabilities

Channel 1 - HS1 & G* Channel 2 - HS2 & G* Channel 3 - S3 & G Channel 4 - S4 & G

Inverse Mode - Up Position

Direct Mode - Down Position

Page 8

General Control Information

Figure 4

See notes 1, 3 & 5

See notes 1 & 3

Sensor 4

Sensor 3

Sensor 2

Sensor 1

Installation: Intrinsically Safe Sensing Circuits

This bulletin should be used by experienced personnel as a guide to the installation of the series 67. Selection or installation of equipment should always be accompanied by competent technical assistance. We encourage you to contact Gems Sensors or its local representative if further information is required.

IMPORTANT: BEFORE PROCEEDING TO INSTALL AND WIRE THE SERIES 67 CONTROL, READ AND THROUGHLY UNDERSTAND THESE INSTRUCTIONS.

Seal Off Fitting

Channel 1

N.C.N.O. N.C.N.C.N.C. N.O.N.O.N.O.

Series 67 - Option A

Contact Board

Channel 2

N.C.N.O.

Load

1/8 Hp 120, 240 VAC 5A @ 120/240

VAC or 5 A @ 30 VDC

Channel 4Channel 3

Load

Channel 1

N.C. N.O. N.C.N.C.N.C.C N.O.N.O.N.O. CCC

Series 67 - Option C

Contact Board

Channel 2

Load

1/3 Hp 120, 240 VAC 10A @ 120/240

VAC or 10 A @ 30 VDC

N.C.

Channel 3

N.O.

Load

Channel 4

SIL G 1-2 2-1 LS1 G HS1 LS2 G HS2 S3 G S4

N.C. N.O.CGL2L1

Fault

Open & Close on Fault Contacts Rated

1/3 Hp 120, 240 VAC 10 A @ 120/240

Open

Fault

VAC or 10 A @ 30 VDC

Hot

Neutral

Notes:

1. All intrinsically safe wiring must be installed in accordance with article 504 of the National Electric Code, publication ANSI/NFPA 70 or CEC, Part 1 as applicable.

2. Grounding- The four mounting holes on the Series 67 provide an electrical connection for earth grounding between the controls internal solid state circuitry and the enclosure chassis. To insure proper grounding, use only metal screws and lock washers when mounting the control.

Terminal “G” on the supply line/load side terminal strip is a redundant system ground terminal and must be connected to the earth ground buss of the controls A.C. supply line feeder. The resistance between the system ground terminals and the earth ground buss must be less than 1 ohm.

To prevent electrical shock from supply line/load side powered connections, the Series 67 should be mounted in a metal enclosure of proper NEMA integrity.

3. The maximum total length of all of the intrinsically safe wiring (of each conductor) shall not exceed an accumulative value of 16,000 feet, excluding any ground wiring.

4. The intrinsically safe terminals of the Series 67 can be connected to any non-energy generating or storing switch device such as a push button, a limit or float type switch or any of Warrick’s electrode fitting assemblies.

5. When wiring alternation and bell silence switches, the switches and wiring must be separated from nonintrinsically safe circuits and wired in accordance with article 504 of the National Electric Code, publication ANSI/NFPA 70 or CEC, Part 1 as applicable.

See note 4

Earth Ground

When installing according to these instructions, this device provides intrinsically safe sensing circuits for interface into Class I; Groups C & D, Class II; Groups E, F, & G and Class III; Hazardous Areas. Electrical equipment connected to associated apparatus should not exceed maximum ratings marked on product.

*** WARNING: To prevent ignition of flammable or combustible atmospheres, disconnect power before

servicing.

MOUNTING LOCATION

The control must be situated in a non-hazardous area where an explosive atmosphere will not exist at any time; otherwise, it must be mounted in a suitable U.L. approved explosion-proof enclosure with suitable U.L. approved explosion-proof seals.

WIRING: GENERAL INFORMATION

1. Intrinsically safe wiring must be kept separate from non-intrinsically safe wiring.

2. Intrinsically safe and non-intrinsically safe wiring may occupy the same enclosure or raceway if they are at least 2 inches (50mm) apart and separately tied down. Inside panels, field wiring terminals for intrinsically safe circuits must be separated by at least 2 inches (50 mm) from non-intrinsically safe wiring.

3. Wire the control device(s) to the Series 67 relay as shown in figure 1. A separate rigid metallic conduit should be used to enclose the conductors of the intrinsically safe control circuit.

4. An approved seal should be used at the point where the intrinsically safe control circuit wiring enters the hazardous area.

5. Capacitance and inductance of the field wiring from the intrinsically safe equipment to the associated apparatus shall be calculated and must be included in the system calculations as shown in Table 1. Cable capacitance, Ccable, plus intrinsically safe equipment capacitance, Ci must be less than the marked capacitance, Ca (or Co), shown on any associated apparatus used. The same applies for inductance (Lcable, Li and La or Lo, respectively).Where the cable capacitance and inductance per foot are not known, the folllowing values shall be used: Ccable = 60 pF/ft., Lcable = 0.2 µH/ft.

For intrinsically safe output wiring use #14 or #16 AWG type MTW or THHN wire. By using these wire types in conjunction with the following distance recommendations, you will not exceed the maximum capacitance for field wiring. Use Table 2 as a guide for maximum wire runs.

Table 1

I.S. Equipment V max (or Ui) I max (or Li) P max, Pi Ci + Ccable Li + Lcable

Terminals

SIL,G,1-2,2-1

LSI,G,HSI,LS2

S3,G,S4

> > > < <

Entity Parameters

Voc

12.82 Vdc

Associated Apparatus Voc or Vt (or Uo) Isc or It (or lo) Po Ca (or Co) La (or Lo)

Isc

7.2 mA

7.62 mA

2.54 mA

24.5 mw

8.2 mw

6.5 µF

100mH

Model

Number

67AXXXA

67BXXXA

67CXXXA

67DXXXA

67EXXXA

Table 2

Sensitivity Distance

4.7K Ohms

10K Ohms

26K Ohms

50K Ohms

100K Ohms

4,000 Feet

2,400 Feet

1,200 Feet

600 Feet

300 Feet

HS2,G

12.82 Vdc

5.08 mA

16.3 mw

6.5 µF

100mH