RKI Instruments 35-3001A-08-01 Manual de usuario

RKI Instruments, Inc.

www.rkiinstruments.com

35-3001A-08-XX

Sample-Draw Detector

Operator’s Manual

Part Number: 71-0630

Revision: P1

Released: 1/31/23

2• 35-3001A-08-XX Sample-Draw Detector Operator’s Manual

WARNING

Read and understand this instruction manual before operating

detector. Improper use of the detector could result in bodily harm or

death.

Periodic calibration and maintenance of the detector is essential for

proper operation and correct readings. Please calibrate and maintain

this detector regularly! Frequency of calibration depends upon the

type of use you have and the sensor types.

Typical calibration frequencies for most applications are between 3

and 6 months, but can be required more often or less often based on

your usage.

35-3001A-08-XX Sample-Draw Detector Operator’s Manual • 3

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 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. 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:

• Absorbent cartridges

•Fuses

• Pump diaphragms and valves

•Batteries

• Filter elements

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

procedures not in accordance with the operator’s manual. This warranty indicates the full extent

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 APARTICULAR PURPOSE. INNO

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 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.

4• 35-3001A-08-XX Sample-Draw Detector Operator’s Manual

Table of Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

External Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Internal Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Mounting the Sample-Draw Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Connecting the Sample Lines to the Sample-Draw Detector . . . . . . . . . . . . . . . . . . . . . . . . . 16

Wiring the Sample-Draw Detector to a Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Introducing Incoming Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Setting the Zero Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Replacing Components of the Sample-Draw Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Adjusting the Low Flow Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Removing the Particle Filter’s Tubing Stub, if Necessary . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Calibration Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Calibration, IR Combustible Gas Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Preparing for Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Setting the Zero Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Setting the Response Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Returning to Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Calibration, CO Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Preparing for Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

35-3001A-08-XX Sample-Draw Detector Operator’s Manual • 5

Setting the Zero Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Setting the Response Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Returning to Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

35-3001A-08-XX Sample-Draw Detector Operator’s Manual Overview • 6

Overview

This operator’s manual describes the 35-3001A-08-XX combustible gas/carbon monoxide

sample-draw detector. This manual also describes how to install, start up, maintain, and calibrate

the sample-draw detector when using it with a gas monitoring controller. A parts list at the end of

this manual lists replacement parts and accessories for the sample-draw detector.

Specifications

Table 1 lists specifications for the combustible gas/carbon monoxide sample-draw detector. See

the controller Operator’s Manual for information specific to the controller.

Table 1: Specifications

Target Gases and

Detection Range

Combustible Gas:

• 35-3001A-08-01: CH4, 0 - 100% LEL

• 35-3001A-08-02: General hydrocarbons (propane

calibration standard), 0 - 100% LEL

• 35-3001A-08-03: CH4, 0 - 100% volume

Carbon Monoxide: 0 - 300 ppm

Input Power 24 VDC Nominal (18.5 VDC - 30 VDC)

Construction (housing) Fiberglass/polyester (NEMA 4X)

Dimensions 8.5 in. H x 6.5 in. W x 4.25 in. D

Weight 4.5 lbs.

Sampling Method Sample-draw

Sample Flow 3.0 SCFH typical, with no inlet or exhaust line

Flow to Sensor 1.0 SCFH (nominal)

Low Flow Setpoint 0.6 ± 0.1 SCFH

Maximum

Recommended Inlet/

Exhaust Line Length

for 1/4” O.D. x 1/8” I.D.

Tubing

Inlet Exhaust

50 feet 0 feet

* RKI Instruments, Inc. does not recommend installing this

tubing size on both the inlet and exhaust.

Maximum

Recommended Inlet/

Exhaust Line Length

for 1/4” O.D. x 0.170”

I.D. Tubing

Inlet Exhaust

50 feet 50 feet

75 feet 0 feet

35-3001A-08-XX Sample-Draw Detector Specifications • 7

WARNING: When using the 35-3001A-08-XX, you must follow the instructions and warnings

in this manual to assure proper and safe operation of the 35-3001A-08-XX and to

minimize the risk of personal injury. Be sure to maintain and periodically

calibrate the 35-3001A-08-XX as described in this manual.

Response Time 90% in 30 seconds

Accuracy

Combustible Gas:

± 5% of reading or ± 2% of full scale (whichever is greater)

Carbon Monoxide:

± 5% of reading or ± 5 ppm CO (whichever is greater)

Table 1: Specifications

8• Description 35-3001A-08-XX Sample-Draw Detector

Description

This section describes the components of the combustible gas/carbon monoxide sample-draw

detector.

Figure 1: Combustible Gas/Carbon Monoxide Sample-Draw Detector Component Location

CO Amplifier

CO Sensor

(inside block)

Oxygen

Sensor

Terminal

Strip

Pump Connector

LE L

G BR S

PWR /SIG

G B

IRFlow Block

IR Sensor

(inside block)

IR Sensor PCB

S+

AMP OX Y

AMP 2

+S R

Fail LED

Pilot LED

Charcoal

Filter

G B

Pressure Switch

Adjustment Screw

(behind PCB)

Pump Reset

Switch

AMP 1

AMP 2

S S R

W G

OXY

Pump

ParticleFilter

Sensor Flow

Control Valve

This End To

Inlet Fitting

Interconnect

Terminal

Strip

Flowmeter

Flowmeter Circuit

Board Connector

LEL / IR

Inlet

Fitting

Exhaust

Fitting

3/4" Conduit Hub

CO Flow

Block

INLET

EXHAUST

IR Amplifier

Mounting Foot, 4X

Hydrophobic

Filter

Detector/Amp

Terminal Strip

(Factory Wired)

35-3001A-08-XX Sample-Draw Detector External Components • 9

External Components

This section describes the sample-draw detector’s external components.

Housing

The sample-draw detector’s fiberglass 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. The

flowmeter and status LEDs are visible through a window in the housing door.

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

feet to install the housing to a vertical surface.

Sample Fittings

The sample fittings are located on the left side of the bottom of the housing. The inlet fitting is

near the front of the housing and the exhaust fitting is near the back of the housing. The sample

fittings accept 1/4 in. rigid tubing. See the Installation section on page 15 to connect tubing to the

sample fittings.

Particle Filter

A particle filter with a tubing stub on one end is shipped with the instrument but it is not factory

installed. If the particle filter is installed directly to the inlet fitting, the tubing stub must be used.

If the particle filter is installed somewhere else, like at the end of the inlet line, the tubing stub can

be used or removed.

Conduit Hub

One 3/4” conduit hub is located on the right side of the bottom of the housing. It is used for

routing wiring into the housing by using conduit or an appropriate cable bushing.

10 • Internal Components 35-3001A-08-XX Sample-Draw Detector

Internal Components

This section describes the sample-draw detector’s internal components (see Figure 1). Figure 2

illustrates how the gas sample moves through the flow system.

Figure 2: Combustible Gas/Carbon Monoxide Sample-Draw Detector Flow Diagram

Main Circuit Board

The main circuit board includes the detector/amp terminal strip, interconnect terminal strip,

oxygen sensor terminal strip, pump connector, and flowmeter circuit board connector (see Figure

1).

Detector/Amp Terminal Strip

The detector/amp terminal strip is the upper twelve-point terminal strip in the bottom right corner

of the main circuit board. Use the detector/amp terminal strip to connect the IR combustible gas

amplifier and the CO amplifier to the main circuit board.

NOTE: The IR combustible gas amplifier and CO amplifier are factory-wired to the main circuit

board. See the “Installation” section on page 15 for all wiring procedures related to the

sample-draw detector.

Interconnect Terminal Strip

The interconnect terminal strip is the lower twelve-point terminal strip in the bottom right corner

of the main circuit board. Use the interconnect terminal strip to connect the sample-draw detector

to a controller.

Restrictor

Pump

Sensor

Carbon

Monoxide

Sensor

Flowmeter

Particle Filter

Sensor Flow

Control Valve

Flowmeter PCB

Exhaust Pressure Switch

Hydrophobic Filter

Inlet Charcoal

Filter

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