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Sample Draw Sensor / Transmitter

Model 35-3001

RKI Instruments

The 35-3001 series is a compact sample draw detector assembly with a built-in pump that is powered from 24VDC. This unit features a NEMA 4X enclosure, making it dust, water and corrosion resistant. It also features a low flow alarm which warns of any obstructions or restrictions in the flow system. Combustibles, oxygen, and carbon dioxide versions are available with or without a 4-20 mA transmitter. H2S and CO versions both have 4-20mA outputs. The 35-3001 is also available in many dual sensor configurations. The 35-3001 is capable of single person calibrations and remote sampling at up to 5,000 ft. from a controller, and interfacing to any RKI or third party control system (utilizing a 4-20 mA feedback signal).
(click image to enlarge)
Quick Overview
    Available in LEL, O2, H2S, CO, CO2, H2 (ppm or LEL) Multigas versions available with sensors in one enclosure Internal sample pump with 100’ range Flowmeter and LED’s for operational status Low flow indication NEMA 4X enclosure Operates on 24VDC input Optional 4-20mA output
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Details

Specifications

LEL

LEL

O2

H2S

CO

H2

CO2

Sensor Type

Catalytic

Infrared

Galvanic cell

Electrochemical

MOS

Infrared

Measuring Range

0-100% LEL

0-100% LEL

for CH4
and HC’s

0-25% Vol.

0-100 ppm

0-500 ppm

0-2000 ppm

0 - 5000 ppm
0 - 5.0% Vol.
0 - 50% Vol.
0 - 100% Vol.

Signal Output

RKI direct connect sensors (requires RKI controller) optional 4-20mA output (standard for CO/H2S)

Operating Voltage

24VDC nominal (18.5 – 30VDC)

Max Current Draw

250 mA 24VDC

Location

Indoor or outdoor

Temperature

-4 to 122° F (-20 to 50°C)

Humidity

0 – 95% RH non condensing

Housing

Grey polycarbonate wall-mount hinged NEMA 4X

Dimensions

Height 8.5” 216 mm

Width 7.0” 178 mm

Depth 4.3” 109 mm

Sampling Method

Internal sample draw pump

Maximum Sample Length

100 Ft.

Sample Connections

1/4” OD rigid tubing (inlet and exhaust)

Display

Flow meter, LED’s for pilot and fail

Warranty

One year, materials and workmanship

 

Available Configurations

Single Channel

Multi Channel

No Transmitter

LEL

IR LEL

IR Vol

H2 LEL

O2

CO2

LEL / O2

IR LEL / O2

IR vol / O2

LEL / IR LEL

LEL / H2S

IR LEL / H2S

IR vol / H2S

O2 / H2S

LEL / CO

IR LEL / CO

IR vol / CO

O2 / CO

LEL / CO2

IR vol / CO2

With Transmitter

LEL

IR LEL

IR Vol

H2 LEL

H2S

CO

O2

CO2

LEL / H2S

IR LEL / H2S

IR vol / H2S

O2 / H2S

LEL / CO

IR LEL / CO

IR vol / CO

O2 / CO

 


Note: Transmitter provides 4-20mA output, built-in for all CO/H2S versions.
* Specifications subject to change without notice.
Made in USA.

Additional Information
Manufacturer: RKI Instruments
For More Information on the Sample Draw Sensor / Transmitter, [Click Here] to Link to Manufacturer Web Site
 
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