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GOW-MAC Instrument Co.
14
DETECTOR:
Detector Type: thermal conductivity
Design: fl ow-through
Detector Elements: four (4) Rhenium-tungsten (WX), gold-sheathed tungsten (AuW);
nickel (Ni); or high sensitivity rhenium tungsten (WX7) on standard 9225 mount;
tube nut closure.
Response Time: 0.5 sec.
Noise: 10
V max. within operating parameters
Drift: 40
V/hour max.
Carrier Gas: N
2
, He, H
2
, or Argon
Current Limit: 300 mA with H
2
[Reference recommended starting settings,
120 mA with N
2
Section 5, 2B.b, pgs. 29-32]
INJECTION PORTS:
Septum: standard 9 mm
Temperature Control: solid state, time proportioning, RTD sensors, direct reading,
ambient to 400 °C.
Temperature Readout: 0 - 400 °C, 3 1/2 digit LED digital meter
Injection Method: direct on-column or gas sample valves
GAS FLOW
(conditions may vary depending upon the options chosen for your instrument)
Dual-column with dual injection ports and exits.
Two metering valves for separate control of each column.
Exit ports allow easy collection of effl uent.
Filament protector pressure switch in carrier inlet line.
THERMAL CONDUCTIVITY BRIDGE CONTROL
Continuous current adjust, 0 - 300 mA
Bridge zero adjust
Attenuator for bridge output, 12 positions to 1024 plus infi nity (
)
Polarity Switch
POWER SUPPLY
Line operated, solid state, integrated circuit regulated, constant current
55 Vdc (max.), 300 mA (max.)
Ripple and noise less than 5
V
x10 SIGNAL AMPLIFIER (OPTIONAL):
amplifi es the detector signal by a factor of 10 for
enhanced sensitivity.
Содержание 580 series
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