RKI Instruments 35-3001A-01 1 Series Manuale utente

www.rkiinstruments.com

35-3001A-01-XX1

Sample-Draw Detector

Operator’s Manual

Part Number: 71-0585

Revision: P1

Released: 1/25/22

2 • 35-3001A-01-XX1 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. For most applications,

typical calibration frequencies are between 3 and 6 months but can be

more often or less often based on your usage.

35-3001A-01-XX1 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:

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 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 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.

a) Absorbent cartridges d) Batteries

b) Pump diaphragms and valves e) Filter elements

c) Fuses

4 • 35-3001A-01-XX1 Sample-Draw Detector Operator’s Manual

Table of Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

External Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Internal Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Mounting the Sample-Draw Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Connecting the Sample Lines to the Sample-Draw Detector . . . . . . . . . . . . . . . . . . . . . . 14

Wiring the Sample-Draw Detector to a Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Introducing Incoming Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Setting the Zero Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Low Flow Contact Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Replacing Components of the Sample-Draw Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Adjusting the Low Flow Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Removing the Particle Filter’s Tubing Stub, if Necessary . . . . . . . . . . . . . . . . . . . . . . . . 25

Calibration Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Preparing for Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Setting the Zero Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Setting the Response Reading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Returning to Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

35-3001A-01-XX1 Sample-Draw Detector Operator’s Manual • 5

Overview

This operator’s manual describes the 35-3001A-01-XX1 sample-draw detector. This version

of the sample-draw detector has low flow contacts that allow the user to monitor the detector’s

low flow status. 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 sample-draw detector. See the controller Operator’s Manual

for information specific to the controller.

Table 1:Specifications

Target Gas and Detection

Range

35-3001A-01-011

•Methane(CH

4): 0 - 100% LEL

35-3001A-01-021

• General hydrocarbons (calibrated to propane): 0 - 100% LEL

35-3001A-01-031

•Methane(CH

4): 0 - 100% volume

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

100 feet 0 feet

50 feet 50 feet

6 • 35-3001A-01-XX1 Sample-Draw Detector Operator’s Manual

WARNING: When using the 35-3001A-01-XX1, you must follow the instructions and

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

01-XX1 and to minimize the risk of personal injury. Be sure to maintain and

periodically calibrate the 35-3001A-01-XX1 as described in this manual.

Maximum Recommended

Inlet/Exhaust Line Length

for 1/4” O.D. x 0.170” I.D.

Tubing

Inlet Exhaust

100 feet 100 feet

Response Time 90% in 30 seconds

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

Table 1:Specifications

35-3001A-01-XX1 Sample-Draw Detector Operator’s Manual • 7

Description

This section describes the components of the sample-draw detector.

Figure 1: Sample-Draw Detector Component Location

Oxygen

Sensor

Terminal

Strip

Mounting

Foot, 4X

IR Sensor

(inside block)

Pump

PWR /SIG

IR Sensor PCB

Detector/Amp

Terminal Strip

(Factory

Wired)+

AMP 2

AMP

+OXY

Pilot LED

Fail LED

Sensor Flow

Control Valve

Pump Reset

Switch

Pressure

Switch

Adjustment

Screw

(behind PCB)

Flowmeter

Interconnect

Terminal

Strip

+AMP 1

AMP 2 +

W G

OXY

Particle

Filter

Flowmeter Circuit

Board Connector

FLOW

FAIL

Inlet

Fitting

Exhaust

Fitting

This End

To Inlet

Fitting

FLOW

FAIL

3/4 NPT Conduit Hub

IR Flow Block

Pump Connector

IR Amplifier

WLELG BR

Sensor

Current

148mA

INLET

EXHAUST

Hydrophobic

Filter

8 • 35-3001A-01-XX1 Sample-Draw Detector Operator’s Manual

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 12 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 NPT 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.

35-3001A-01-XX1 Sample-Draw Detector Operator’s Manual • 9

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: 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 amplifier

to the main circuit board.

NOTE: The amplifier is factory-wired to the main circuit board. See the “Installation”

section on page 12 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.

Oxygen Sensor Terminal Strip

The oxygen sensor terminal strip is a two-point terminal strip in the upper right corner of the

main circuit board. This terminal strip is not used in this version of the sample-draw detector.

Pump

Sensor

Flowmeter

Particle Filter

Flowmeter PCB

Exhaust Pressure Switch

Hydrophobic Filter

Inlet Restrictor

Sensor

Flow

Control

Valve

10 • 35-3001A-01-XX1 Sample-Draw Detector Operator’s Manual

Pump Connector

The pump connector is the two-point connector below the oxygen terminal strip in the upper

right corner of the main circuit board. Use the pump connector to connect the pump to the

main circuit board.

NOTE: The pump is factory-wired to the main circuit board. See “Installation” on page 12

for all wiring procedures related to the sample-draw detector.

Flowmeter Circuit Board Connector

The flowmeter circuit board connector is a six-position connector in the upper left corner of

the main circuit board. Use the flowmeter circuit board connector to connect the flowmeter

circuit board to the main circuit board.

NOTE: The flowmeter circuit board is factory wired to the main circuit board. See

“Installation” on page 12 for all wiring procedures related to the sample-draw

detector.

Flowmeter Circuit Board

The flowmeter circuit board is mounted to the left side of the main circuit board using

standoffs. It includes the flowmeter, sensor flow control valve, status LEDs, pressure switch,

and pump reset switch.

Flowmeter

The flowmeter is mounted to the right side of the flowmeter circuit board. You can see it

through the window in the door. A ball in the flowmeter column indicates the flow rate to the

sensor. The flowmeter measures the flow in the range 0.2 to 2.0 SCFH (Standard Cubic Feet

per Hour). The optimum flow rate is 1.0 SCFH.

Sensor Flow Control Valve

The sensor flow control valve is mounted to the flowmeter circuit board above the flowmeter.

The sensor flow control valve adjusts the flow rate to the detector. Turn the valve’s knob

counterclockwise to increase the flow and clockwise to decrease the flow.

Status LEDs

Two status LEDs are above the flowmeter. They are also visible through the window in the

housing door. The green Pilot LED is on when the sample-draw detector is receiving power

from the controller. The red Fail LED is on when the sample flow rate is below the low flow

level.

Pressure Switch

The pressure switch is mounted to the back of the flowmeter circuit board. The pressure

switch monitors the flow rate of the incoming gas sample.

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