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KJLC® 275i Series Gauge with Integrated Controller & Display

The 275i vacuum gauge modules are ideal for new applications or as low-cost drop-in replacements to the Mini-Convectron® brand of Granville-Phillips® gauges.

Features:

  • Performance identical to existing competitor's gauges
  • Less prone to damage from mechanical shock or vibration than competitor's tubes
  • Less outgassing and faster response to pressure changes than competitor's tubes
  • Built-in digital display
  • Wide measurement range: 10-4 to 1,000 Torr (10-4 to 1,333 mbar)
  • Wider measuring range and better accuracy than traditional thermocouple gauges
  • CE marked, RoHS compliant
  • NIST traceable calibration certificates available upon request. Note that this request must be made upon order of the unit.
  • Power supply sold separately.
  • Gauges are calibrated for direct readout of nitrogen or air. Do not attempt to use with other gases unless accurate conversion data for N2 to the other gas is properly used.

Specifications Table

Measurement MethodConvection Enhanced Pirani
Measurement Range1 x 10-4 to 1,000 Torr (1.3 x 10-4 to 1.333 mbar)
Temperature (operating)0-40° C
Temperature (storage)-40-70° C
Temperature (bakeout)70° C
Display3-digit LED (Torr & mTorr or Bar & mBar)
Materials Exposed to VacuumGold-plated tungsten, 304 & 316 stainless steel, glass, nickel, PFPE
Accuracy (typical)1.0x10-4 to 1.0x10-3 Torr; 0.1 mTorr resolution
1.0x10-3 to 400 Torr; ± 10% of reading
400 to 1,000 Torr; ± 2.5% of reading
Repeatability (Typical)± 2% of reading
Set-Point RelaysOne SPDT Relay
Relay Response1A at 30 VDC resistive or AC non-inductive
Mounting/Installation OrientationHorizontal recommended (Orientation has no effect below 1 Torr)
Analog Outputslog-linear 1 to 8 Vdc , 1 V/decade or non-linear analog S-curve 0.375 to 5.659 Vdc
Internal Volume26 cm3 (1.589 in3)
Input Power12-28 VDC, 2 W, protected against power reversal and transient over-voltages
Connections9-pin sub-D (male)
Compliance & StandardsCE compliant, RoHS compliant

Product Downloads
For a downloadable datasheet on this product, please click here.

For a Contamination & Cleaning Instructions Manual on this product, please click here.
Troubleshooting Guide
To download an Operation Contamination Troubleshooting guide for this product, please click here.
Gauge Troubleshooting Form
Let us figure out what's wrong with your gauge. Visit the Gauge Troubleshooting form.
Gauges FAQ
Click here for answers to some of the most common questions we are asked.
Contact Us
To speak with someone directly, please call +1 412 387 9200 or email international@lesker.com.
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Ordering Table

Ordering Notes: Power supply is not included - Please order separate.
Accessories Description Termination Manual
VacuCADSM
Part Number Price In Stock Add
Item
Accessories Description Termination Manual
VacuCADSM
Part Number Price In Stock Add
Item
Log-Linear Analog Output, Torr 1/8" NPT
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KJL275800LL
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Log-Linear Analog Output, bar/mbar 1/8" NPT
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KJL275800LLMB
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Log-Linear Analog Output, Torr 4 VCR® Female
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KJL275801LL
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Log-Linear Analog Output, bar/mbar 4 VCR® Female
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Log-Linear Analog Output, Torr 1-1/3" CF
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KJL275803LL
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Log-Linear Analog Output, bar/mbar 1-1/3" CF
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Log-Linear Analog Output, Torr 2-3/4" CF
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KJL275804LL
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Log-Linear Analog Output, bar/mbar 2-3/4" CF
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KJL275804LLMB
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Log-Linear Analog Output, Torr KF16
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KJL275806LL
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Log-Linear Analog Output, bar/mbar KF16
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Log-Linear Analog Output, Torr KF25
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KJL275807LL
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Log-Linear Analog Output, bar/mbar KF25
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Log-Linear Analog Output, Torr KF40
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KJL275808LL
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Log-Linear Analog Output, bar/mbar KF40
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Log-Linear Analog Output, Torr 8 VCR® Female
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KJL275863LL
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Log-Linear Analog Output, bar/mbar 8 VCR® Female
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Non-Linear Analog Output, Torr 1/8" NPT
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KJL275800
$350.00
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Non-Linear Analog Output, bar/mbar 1/8" NPT
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Non-Linear Analog Output, Torr 4 VCR® Female
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KJL275801
$385.00
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Non-Linear Analog Output, bar/mbar 4 VCR® Female
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KJL275801MB
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Non-Linear Analog Output, Torr 1-1/3" CF
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KJL275803
$385.00
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Non-Linear Analog Output, bar/mbar 1-1/3" CF
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KJL275803MB
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Non-Linear Analog Output, Torr 2-3/4" CF
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KJL275804
$400.00
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Non-Linear Analog Output, bar/mbar 2-3/4" CF
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KJL275804MB
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Non-Linear Analog Output, Torr KF16
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KJL275806
$375.00
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Non-Linear Analog Output, bar/mbar KF16
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N/A
KJL275806MB
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Non-Linear Analog Output, Torr KF25
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KJL275807
$385.00
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Non-Linear Analog Output, bar/mbar KF25
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N/A
KJL275807MB
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Non-Linear Analog Output, Torr KF40
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KJL275808
$400.00
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Non-Linear Analog Output, bar/mbar KF40
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N/A
KJL275808MB
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Non-Linear Analog Output, Torr 8 VCR® Female
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KJL275863
$400.00
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Non-Linear Analog Output, bar/mbar 8 VCR® Female
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N/A
KJL275863MB
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Note Other plug ends available. Please see manual for available options and part numbers.