GD-K77D Fixed Gas Detector System

Price:

$1,900.00

SKU:

50019

Brand:

RKI

Condition:

New

Availability:

Available

Shipping:

Calculated at checkout

Product Description

GD-K77D

Features

Digital display with LCD back light
Sensor information and calibration is stored within sensor memory
Several data transmission options available
Zero suppression and correction
Smaller housing design for narrow wall mounting locations
Self-diagnostic functions by microprocessor
Electrochemical sensors for most semiconductor gases
Built-in sampling pump
Easy replacement of pump and sensor
Two alarm levels, plus trouble alarm with relays
24VDC operation
Optional NEMA 4X housing available

Applications

Semiconductor
Chemical Processing
Laboratory
Manufacturing

The GD-K77D is a complete sample drawing gas monitor, including digital readout and alarm relays. A new gas sensor technology using an intelligent sensor for remote location calibration and setup is used. The new GD-K77D sensors are designed to provide a longer time period between calibrations. Calibration intervals have been cut in half to12 months of on-line service which equates to reduced maintenance cost. In addition, the sensors can be calibrated away from the gas detector installation, for example in a service area or offsite. This eliminates the inconvenience of having calibration gases in the fab or monitoring location. GD-K77D easily connects to an existing PLC system and is ideal for applications needing a local readout or where a relay control is needed.

Detection Principle	Electrochemical cell
Detection Method	Sample drawing type
Signal Transmission	Analog transmission (4-20 mA) Two wire digital transmission
Display	Digital LED display of gas concentration, 4 digits
Gas Alarms	Two alarm levels: 1st alarm (Yellow LED), 2nd alarm (Red LED)
Dry Outputs For Remote Alarms	Dry contact relay for 1st, 2nd, and trouble alarms (Normally Open or Normally Closed)
Alarm Response Time	Approximately 10 - 15 seconds when exposed to gas concentration of 1.6 times alarm level for most gases (Same as T60)
Self Diagnosistic Function	Trouble, low flow, system failure, communication error
Operating Conditions	0 - 40•C, 30 - 85% R. H.
Power Requirements	24 VDC
Applicable Cable	Shielded cable 3C, 1.25 sq (18 gauge) Shielded twisted one pair cable, 1.25 sq (18 gauge)
Enclosure	Wall mounting
Dimensions	2.8" (W) x 6.7" (H) x 6.0" (D), approximately 4.4 lbs 70 mm (W) x 170 mm (H) x 153 mm (D), approximately 2 kg

Partial List Of Detectable Gases
Many other gases or ranges available.

Ammonia (NH3)	0 - 75.0 ppm
Arsine (AsH3 )	0 - 0.20 ppm
Boron Trichloride (BCl3)	0 - 15.0 ppm
Carbon Monoxide (CO)	0 - 300 ppm
Chlorine (Cl2)	0 - 3.0 ppm
Chlorine Dioxide (ClO2)	0 - 1.00 ppm
Chlorine Trifluoride (ClF3)	0 - 0.6 ppm
Combustibles	0 -100% LEL
Diborane (B2H6)	0 - 0.30 ppm
Fluorine (F2)	0 - 6.0 ppm
Hydrogen (H2)	0 - 2000 ppm
Hydrogen Chloride (HCl)	0 - 15.0 ppm
Hydrogen Fluoride (HF)	0 - 9.0 ppm
Hydrogen Sulfide (H2S)	0 -100.0 ppm
Nitric Oxide (NO)	0 -100.0 ppm
Nitrogen Dioxide (NO2)	0 - 15.0 ppm
Oxygen (O2)	0 - 25.0 %
Ozone (O3)	0 - 1.0 ppm
Phosphine (PH3)	0 - 1.0 ppm
Silane (SiH4)	0 - 15.0 ppm
Sulfur Dioxide (SO2)	0 - 30.0 ppm