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DCC-MRI Oxygen Sampling System

CETCII Critical Instrument

Category : Specialty Products

Kondisi : NEW

View : 129

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Hotline 1 : 0812-8927-0182
Hotline 2 : 02122278639 (Office Hour)
Whatsapp : 0812-9407-7633

The DCC-MRI is a self-contained Oxygen sample draw monitoring system is designed for use in rooms where compressed gases are used, such as in MRI and NMR rooms. Compressed gases and cryogenic liquids (usually nitrogen, helium and sometimes carbon dioxide) when dispensed, will displace Oxygen, creating an Oxygen deficient or hazardous atmosphere. Continuous monitoring of the Oxygen levels in these rooms is recommended to ensure the Oxygen levels remain safe and people inside the rooms are alerted in the case of a gas leak situation. Because the strong magnetic field inside MRI and NMR rooms can interfere with electronic equipment installed inside the room, the DCC-MRI gas detection system is designed to be installed outside the room, with sample tubing running from the monitoring system to the sampled environment. The air in the room is continuously drawn into the device by the sample draw pump, flowing over the sensor and is exhausted through the outlet port. If the Oxygen level drops below a specified set point, the DCC-MRI will go into alarm. The DCC-MRI comes with an O2 sensor (measurement range 0 - 25% volume), a flow detector, a sample draw pump and an internal adjustable flow meter. Features include one configurable 4 - 20 mA output, one alarm level line voltage relay with field configurable time delays and trigger levels, a blocked flow alarm indicating a dirty filter or clogged tubing, a side mounted audible buzzer and an LCD display with LED indicators for channel alarm status and fault conditions. This system is accurate enough to measure to government established exposure levels for O2 deficiency for health and safety.

Key Features

  • Oxygen sensor 0 - 25% volume (3 year lifespan)
  • 2x16 character LCD display with LED indicators
  • One 5A SPDT dry contact relay
  • One configurable 4- 20 mA output
  • Sample draw pump
  • Adjustable flow meter
  • Blocked flow alarm
  • Loud side mounted buzzer
  • Standard water / dust tight, corrosion resistant enclosure (drip proof)

Specifications

Target Gas

Gas Sensor

Oxygen (O2) (measurement range 0 - 25% vol)

Mechanical

Enclosure

Water / dust tight corrosion resistant polyester reinforced fiberglass

Weight

3.4 kg / 7.5 lbs

Size

223 x 267 x 159 mm / 8.8 x 10.5 x 6.3 inches

Tubing (not supplied)

1/4" OD, factory tested distance: 15.24 m / 50 ft

User Interface

Display

2x16 character LCD display

LED indicators for "CH1" state, "CH2" state and "FAULT"

SILENCE Push Button

Temporarily clears buzzer / latched relays

Input/Output

Output

One 4-20 mA analog

Relay

One SPDT dry contact relay rated 5 amps @ 240 VAC

Audible Alarm

Side mounted buzzer, rated 90 dB @ 30 cm / 1 ft

Flow

Normal operation: 1.0 LPM

Flow alarm: less than 0.5 LPM

Electrical

Power Requirement

24 VAC nominal, 10 W, Class 2

Current Draw

400 mA RMS @ 24 VAC

Wiring

24 VAC 2-conductor shielded minimum 18 AWG stranded within conduit

Fuses

Thermal, resetting

Environmental

Operating Temperature

-20°C to 40°C (-4°F to 104°F)

Operating Humidity

15 - 90% RH non-condensing

Location

Indoor use only

Certifications

Conforms to

CSA-C22.2 No. 205-12, UL508 (Edition 17):2007

EMC Directive 2004/108/EC, EN 50270:2006, Type 1, EN61010

FCC. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

RoHS compliant circuit boards