RKI Instruments 35-3001-05 Series Bedienungsanleitung

www.rkiinstruments.com

35-3001-05-XX

Carbon Dioxide Sample-Draw Detector

Operator’s Manual

Part Number: 71-0413

Revision: A

Released: 6/20/19

35-3001-05-XX CO2 Sample-Draw Detector

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

6 and 12 months, but can be required more often or less often

based on your usage.

35-3001-05-XX CO2 Sample-Draw Detector

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 APARTICULAR 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

35-3001-05-XX CO2 Sample-Draw Detector

Table of Contents

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

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

Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

External Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Internal Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Mounting the Carbon Dioxide Sample-Draw Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Connecting the Sample Lines to the Sample-Draw Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Wiring the Carbon Dioxide Sample-Draw Detector to a Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Introducing Incoming Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Setting the Zero Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Replacing Components of the Carbon Dioxide Sample-Draw Detector. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Adjusting the Low Flow Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Removing the Particle Filter’s Tubing Stub, if Necessary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Calibration Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Preparing for Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Setting the Zero Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Setting the Response Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Returning to Normal Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

35-3001-05-XX CO2 Sample-Draw Detector • 5

Overview

This operator’s manual describes the 35-3001-05-XX carbon dioxide 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 carbon dioxide sample-draw detector. See the controller Operator’s

Manual for information specific to the controller.

WARNING: When using the 35-3001-05-XX, you must follow the instructions and warnings in this

manual to assure proper and safe operation of the 35-3001-05-XX and to minimize the

risk of personal injury. Be sure to maintain and periodically calibrate the 35-3001-05-XX

as described in this manual.

Table 1: Specifications

Target Gas Carbon Dioxide (CO2)

Detection Range 35-3001-05-02: 0 - 5,000 ppm (parts per million)

35-3001-05-03: 0 - 5% volume

35-3001-05-05: 0 - 50% volume

35-3001-05-10: 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

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)

6 • 35-3001-05-XX CO2 Sample-Draw Detector

Description

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

Figure 1: Carbon Dioxide Sample-Draw Detector Component Location

Oxygen

Sensor

Terminal

Strip

Pump

Mounting

Foot, 4X

OXY

+ RS

IR CO2

Flow Block

IR CO2

Sensor PCB

Detector/Amp

Terminal Strip

(Factory Wired)

AMP AMP 2

Sensor Flow

Control Valve

Fail LED

Pilot LED

Pump Reset

Switch

Flowmeter

Pressure Switch

Adjustment Screw

(behind PCB)

R BG

Interconnect

Terminal

Strip

OXY

AMP 1

AMP 2

This End To

Inlet Fitting

Flowmeter Circuit

Board Connector

Pump Connector

LEL/ IR

ParticleFilter

LEL/ IR

3/4" Conduit Hub

IR CO2

Sensor

(inside block)

Exhaust

Fitting

Inlet

Fitting EXHAUST

INLET

Hydrophobic

Filter

35-3001-05-XX CO2 Sample-Draw Detector • 7

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 10 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.

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: Carbon Dioxide Sample-Draw Detector Flow Diagram

Pump

IR CO2

Sensor

Flowmeter

Particle Filter

Flowmeter PCB

Exhaust Pressure Switch

Hydrophobic Filter

Inlet Restrictor

Sensor

Flow

Control

Valve

8 • 35-3001-05-XX CO2 Sample-Draw Detector

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 carbon dioxide sensor to the main

circuit board.

NOTE: The carbon dioxide sensor is factory-wired to the main circuit board. See the “Installation” section

on page 10 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 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 10 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 10 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.

35-3001-05-XX CO2 Sample-Draw Detector • 9

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.

If the flow rate falls below the preset low flow level, the pressure switch causes the Fail LED to turn on and

interrupts the signal from the detector. The interrupted detector signal causes a fail condition at the

controller. The low flow level is factory-set at 0.6 SCFH (±0.1 SCFH). See “Adjusting the Low Flow

Setting” on page 18 to adjust this setting.

Pump Reset Switch

The pump reset switch is located to the left of the status LEDs. When a low flow condition occurs, the pump

will be shut off. To reset the low flow condition and start the pump again, press and hold the pump reset

switch for about 2 seconds, then release.

Hydrophobic Filter

The hydrophobic filter is located toward the bottom left of the main circuit board. The filter prevents

particulates and water in the incoming gas sample from damaging the flow and detection systems. Replace

the filter when it appears dirty, discolored, or clogged.

Pump

The pump is mounted to the right side of the main circuit board. The pump pulls the gas sample into the

sample-draw detector. The pump operates on 24 VAC, which is generated from the 24 VDC supplied by the

controller.

IR Carbon Dioxide Sensor/IR Carbon Dioxide Sensor PCB

The carbon dioxide sensor is an infrared type plug-in detector. The carbon dioxide sensor is installed in the

IR carbon dioxide flow block and the IR carbon dioxide flow block is mounted to the middle of the main

circuit board. A small circuit board, the IR carbon dioxide sensor PCB, with a 4-wire cable mates to the IR

carbon dioxide sensor and retains it in the flow block. The cable is wired to the main PCB. The IR carbon

dioxide sensor PCB allows you to replace the sensor without disconnecting the wiring.

10 • 35-3001-05-XX CO2 Sample-Draw Detector

Installation

This section describes procedures to mount the sample-draw detector in the monitoring environment and

wire the sample-draw detector to a controller.

Mounting the Carbon Dioxide Sample-Draw Detector

1. Select the mounting site. Consider the following when you select the mounting site:

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

bottom of the housing?

• Make sure there is sufficient room to perform start-up, maintenance, and calibration procedures.

• Are the flowmeter and status LEDs visible?

Figure 3: Outline and Mounting Dimensions

Ø.30x.50(4X)MOUNTING

.78

1.13

.40

Pilot Fail

.85

.80

4.50

NOTE: Housing is4.3 inchesdeep

8.88

4.00

6.50

35-3001

www.rkiinstruments.com

Sample Drawing

GasDetector

8.50

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