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Pressure Control Cold Cathode / Hot Filament Gauge Comparison Chart

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	KJLC^® 351	KJLC^® 354	KJLC^® Cold Cathode
Measurement Method	Hot Filament Ion Gauge	Hot Filament Ion Gauge	Cold Cathode
Measurement Range Torr	1E-09 to 5E-02 (1.3E-09 to 6.7E-02)	1E-09 to 5E-02 (1.3E-09 to 6.7E-02)	7.6E-10 to 7.6E-03 (1E-09 to 1E-02)
Accuracy (typical)	±15% of reading (1e-8 to 5e-2 Torr)	±15% of reading (1e-8 to 5e-2 Torr)	±30% of reading (7.6e-10 to 7.6e-3 Torr)
Units	Controller Dependent	Torr mbar Pa	Controller Dependent
Temperature - Operating (Range)°C (°F)	0 to 40 (32 to 104)	0 to 40 (32 to 104)	5 to 55 (40 to 130)
Temperature - Bakeout Max °F (°C)	200 (392), Electronics Removed	200 (392), Electronics Removed	150 (300)
Display Type	No	Digital	No
Set-Point Relays	Controller Dependent	1	Controller Dependent
Relay Response	Controller Dependent	1A at 30 VDC resistive, 0.3 A at 125 VAC non-inductive	Controller Dependent
Analog Output	Log linear 0 to 9 VDC, 1 V/decade	Log-linear 0 to 9 VDC, 1 V/decade	Voltage Output: 0 to 10.5 VDC Measurement Range: 0.667 to 10 VDC
Input Power	Powered by MGC 3200	20 to 28 VDC, 30 W protected against power reversal and transient over-voltages	14.5 to 30 VDC, ≤2 W
Communication, Standard	Analog RS485	Analog RS485	Analog
Connector	9 Pin Sub D Male	9 Pin Sub D Male	FCC68 / RJ45 8 Pin
Compliance and Standards	CE RoHS	CE RoHS	CE RoHS UL CSA

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