RKI Instruments 82-5222 User manual

www.rkiinstruments.com

82-5222

24 VDC Pneumatic ESTOP

Operator’s Manual

Part Number: 71-0571

Revision: P1

Released: 8/13/21

2 • 82-5222

Product Warranty

RKI Instruments, Inc. warrants gas alarm equipment sold by us to be free from defects in materials,

workmanship, and performance for a period of one year from the date of shipment from RKI

Instruments, Inc. Any parts found defective within that period will be repaired or replaced, at our

option, free of charge. Parts must be returned to RKI Instruments, Inc. for repair or replacement. This

warranty does not apply to those items which by their nature are subject to deterioration or

consumption in normal service, and which must be cleaned, repaired or replaced on a routine basis.

Examples of such items are:

Warranty is voided by abuse including mechanical damage, alteration, rough handling, or repair

procedures not in accordance with instruction manual. This warranty indicates the full extend of our

liability, and we are not responsible for removal or replacement costs, local repair costs, transportation

costs, or contingent expenses incurred without our prior approval.

THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY AND ALL OTHER

WARRANTIES AND REPRESENTATIONS, EXPRESSED OR IMPLIED, AND

ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF RKI

INSTRUMENTS, INC. INCLUDING BUT NOT LIMITED TO, THE WARRANTY

OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO

EVENT SHALL RKI INSTRUMENTS, INC. BE LIABLE FOR INDIRECT,

INCIDENTAL OR CONSEQUENTIAL LOSS OR DAMAGE OF ANY KIND

CONNECTED WITH THE USE OF ITS PRODUCTS OR FAILURE OF ITS

PRODUCTS TO FUNCTION OR OPERATE PROPERLY.

This warranty covers instruments and parts sold to users only by authorized distributors, dealers and

representatives as appointed by RKI Instruments, Inc.

We do not assume indemnification for any accident or damage caused by the operation of this gas

monitor and our warranty is limited to the replacement of parts or our complete goods. Warranty

covers parts and labor performed at RKI Instruments, Inc. only, and does not cover field labor or

shipment of parts back to RKI.

a) Pump diaphragms and valves c) Batteries

b) Fuses d) Filter elements

82-5222 • 3

Table of Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

About the 82-5222 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

External Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Internal Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Factory Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Making Tubing Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Normal Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Replacing the Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4 • 82-5222

Overview

This manual describes the 82-5222 emergency shutoff. It also describes how to install and start up the

device. A spare parts list at the end of this manual lists replacement parts.

About the 82-5222

The 82-5222 is a fixed-mounted device with a solenoid valve, relay, stack light, and emergency stop

button. It requires 24 VDC and compressed air to operate. The solenoid valve inside the 82-5222 is

field-plumbed via the “In” and “Out” ports to a user-supplied pneumatic device. When the emergency

stop button on the front of the housing door is pushed, the internal solenoid valve de-energizes and the

pneumatic line between the 82-5222 and the user-supplied pneumatic device depressurizes through the

vent port. A set of remote relay contacts may optionally be used to

de-energize the solenoid.

Specifications

Table 1 lists specifications for the sample drawing gas detector.

WARNING: When using the 82-5222, you must follow the instructions and warnings in this

manual to assure proper and safe operation of the 82-5222 and to minimize the risk of

personal injury.

Table 1: Specifications

Construction (housing) • PBT/PC blend

•NEMA4X

Dimensions 18.82 in. (478 mm) H x 8.09 in. (205 mm) W x 7.19 in. (183 mm) D

Weight 6.1 lbs.

Input Power for Device 24 VDC

“In” and “Out” Ports

Pressure Rating

160 psi

82-5222 • 5

Description

External Description

This section describes the external components of the 82-5222.

Figure 1: External Component Location

Housing

The 82-5222’s PBT/PC blend housing is weather- and corrosion-resistant. It is suitable for installation

where general purpose equipment is in use. The housing door is hinged on the left side and is secured

by two latches on the right side. A panel inside the housing allows for component installation and

mounting. Four mounting feet are attached to the back of the housing (one at each corner). The

mounting feet are used to install the housing to a wall.

One conduit hub on the bottom of the housing is for external wiring connections. Two compression

fittings for 1/4 inch OD rigid tubing allow for compressed air to be routed to and from the 82-5222.

One hose barb fitting for 1/4 inch ID flexible tubing allows for vented air to be routed away from the

82-5222, if desired.

Stack Light

Emergency Stop Button

1/4 inch OD Rigid Tubing "Out"

1/4 inch ID Flexible Tubing "Vent"

Housing

1/4 inch OD Rigid Tubing "In"

3/4 NPT Conduit Hub

6 • 82-5222

Emergency Stop Button

When the emergency stop button on the front of the 82-5222 is pushed, the internal solenoid valve de-

energizes which closes the “In” port and causes the pneumatic line between the 82-5222 and the user-

supplied pneumatic device to depressurize through the vent port.

Reset a pushed button by turning it clockwise.

Stack Light

The stack light installed on the top of the housing indicates the status of the solenoid valve’s power

line. When the light is green, the pneumatic line between the 82-5222 and the connected pneumatic

device is pressurized. When the light is red, the “In” port is closed and the pneumatic line between the

82-5222 and the connected pneumatic device depressurizes through the vent port.

Internal Description

This section describes the internal components of the 82-5222.

Figure 2: Internal Component Location

Relay

A DPDT relay installed on the right side of the 82-5222 controls the stack light’s LED color and also

controls the power to the solenoid valve.

INPUT

POWER

24 VDC

Solenoid Valve

Mounting Plate

FieldWiring

Terminal Strip

Fuse

TO ALARM

CONTACTS

1 NC 2

Emergency Stop

Button Connections

Relay

82-5222 • 7

Solenoid Valve

A 3-way solenoid valve installed on the left side of the 82-5222 controls the flow of connected

compressed air. When the solenoid is energized, the pneumatic line between the 82-5222 and the

connected pneumatic device is pressurized. When the solenoid de-energizes, it closes the “In” port and

depressurizes the pnematic line between the 82-5222 and the connected pneumatic device through the

vent port.

Emergeny Stop Button Connections

The emergency stop button’s wiring connections are visible on the back of the door. They are factory

wired to the Field Wiring Terminal Strip.

Fuse

A 250V, 1A slow blow fuse is installed in the power line that runs to the stack light. The fuse holder is

secured to the right side of the housing with a zip tie.

Field Wiring Terminal Strip

The Field Wiring Terminal Strip allows for a set of remote relay contacts to be wired into the system as

an additional control over the solenoid valve. A factory-installed jumper should be left installed if

remote relay contacts are not being wired to the terminal strip.

Installation

This sections describes how to mount and wire the 82-5222.

Mounting

1. Select the mounting site. When you select the mounting site, consider the following factors:

• Is a DC power source available?

• Is a vertical surface available to mount the 82-5222?

• Is there enough room to open the housing door, make tubing connections, and make wiring

connections at the bottom of the housing?

• Is the stack light visible?

• Is the location easily accessible in case of an emergency?

2. The 82-5222 is shipped with the mounting feet positioned under the housing. Loosen the screws

that secure the feet to the housing, rotate the feet to their mounting position as shown in Figure 3,

then tighten the screws.

3. Position the 82-5222 on the vertical mounting surface.

8 • 82-5222

4. Insert 3/16 in. screws through the mounting slots to secure the housing to the mounting surface.

Figure 3: Outline & Mounting Dimensions

7.19

8.09

6.04

Ø .23 x .3 slot, 4X

11.41

18.82

82-5222 • 9

Factory Wiring

The figure below shows factory wiring connections. These wiring connections should not need

adjustment.

Figure 4: Factory Wiring

Relay

Black

Red

IN PUT

POWER

24 VDC

Red

Green

Yellow

Red

Green

1NC 2

Red

Not Used

Stack Light

TOALARM

CONTACTS

+13

Solenoid

Valve

Black

Emergency Stop

Button Contacts

10 • 82-5222

Field Wiring

This section describes how to wire 24 VDC to power the 82-5222 and how to wire a remote relay

contact into the 82-5222 (optional).

1. Turn off or unplug power to the 82-5222.

2. Open the housing door.

Power Wiring

3. Guide a 2-conductor cable or 2 wires in conduit through the conduit hub on the bottom of the

housing. Use appropriate conduit fittings and construction technique for the environmental rating

of the housing. The housing is rated NEMA 4X.

4. Connect one end of both wires to the + and - terminals of a 24 VDC power source.

5. Connect the other end of both wires to the appropriate “Input Power 24 VDC” terminal on the

Field Wiring Terminal Strip as shown in Figure 5 below.

Remote Relay Contact Wiring

Connecting the 82-5222 to a remote relay contact is is not necessary for operation. Connecting the

82-5222 to a remote relay contact provides another way to de-energize the solenoid valve and

depressurize the pneumatic line between the 82-5222 and the connected pneumatic device. If you do

connect the 82-5222 to a remote relay contact, the relay contact set used must be normally open and

the relay must be configured as normally energized.

6. Remove the jumper from the Field Wiring Terminal Strip.

NOTE: If you are not connecting a remote relay contact to the 82-5222, the jumper must stay

installed.

7. Guide a 2-conductor cable or 2 wires in conduit through the conduit hub on the bottom of the

82-5222 housing. Use appropriate conduit fittings and construction technique for the

environmental rating of the housing. The housing is rated NEMA 4X.

8. Connect the wires to the “To Alarm Contacts” terminals on the Field Wiring Terminal Strip.

9. Guide the other end of the wires to the normally open remote relay contact. Use appropriate

conduit fittings and construction technique for the environmental rating of the relay contact’s

housing. RKI’s controllers are rated NEMA 4X.

10. Connect the wires to the NO and C contacts on the remote relay that you want to use to control the

solenoid valve (as shown in Figure 5 below). When the relay contact is closed, the solenoid valve

is energized and the pneumatic line between the 82-5222 and the connected pneumatic device is

pressurized. When the relay contact opens, the the solenoid valve de-energizes, the “In” port

closes, and the pneumatic line between the 82-5222 and the pneumatic device depressurizes

through the vent port.

NOTE: The relay that you connect to the 82-5222 must be configured as normally energized.

Table of contents

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