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- High performance displacement measurement system
- For use against all metallic and non-metallic surfaces,
such as steel, aluminium, plastics, glass and ceramics
- High accuracy and thermal stability
- Simple calibration procedure
- May be used with sensor temperatures up to 200°C
- Internal adjustment for different sensor sizes
- Standard 1 kHz frequency response, 5kHz optional
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DESCRIPTION
FT1000 rack-mount electronics are designed for use
with standard CDT sensors and comprise an amplifier
and oscillator, which are housed in a single or multi-channel
channel ABS enclosure.
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| SYSTEM PART NUMBERS
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| Single Channel System Comprising |
Amplifier |
FT1000-RMA |
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Oscillator |
FT1000-OSC |
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Enclosure |
FT1000-ENC |
| MEASUREMENT RANGE |
| Sensor Size |
Electrode |
Linear range |
Max Working |
Typical Capacitance Range Over
Linear Range |
| Ø8.0mm |
Ø2.0mm |
0.10 - 2.0mm |
5.0mm |
0.280pF to 0.014pF |
| Ø15.0mm |
Ø4.0mm |
0.20 - 4.0mm |
10.0mm |
0.560pF to 0.028pF |
| Ø30.0mm |
Ø8.0mm |
0.40 - 8.0mm |
20.0mm |
1.120pF to 0.056pF |
Stated measurement ranges are against metallic surfaces
and may be reduced when applied to non-metallic
materials. Figures quoted are for CDT series sensors
calibrated with FT1000 rack mount electronics. Sensors
should be grounded to earth during normal operation.
Larger sensors are available to special order. |
| GAIN RANGE |
100:1 variable gain amplifier with
1/X output |
| Maximum Target Capacitance |
2.5pF full scale |
| Front Panel Potentiometer Scaling |
10 turn pot allows full scale output
to be developed from 10% to 110% of maximum target
Capacitance |
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| "Low" gain setting |
will set to 2.50pF full scale & measure
down to 0.025pF |
| "High" gain setting |
will set to 0.25pF full scale & measure
down to 0.0025pF |
| PERFORMANCE |
| Accuracy |
± 0.1%
of full scale |
| Repeatability |
± 0.05% of full scale
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| Stability |
100ppm/°C
typical |
| Filter Type |
3 pole Butterworth 1kHz
(100Hz to 5kHz by resistor change) |
| Rise Time |
300
µs (1kHz filter) |
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| INPUTS |
Sensor Type |
CDT series (low
temp) |
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Connector Type |
Microdot |
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Cable Type |
Low noise 100%
screened flexible coaxial |
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Cable Length |
2 metres standard, 5 metres maximum
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Cable Diameter
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2.0mm |
| OUTPUTS |
Connector Type |
BNC |
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Cable Type |
50 Ohm coaxial
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Cable Length |
Up to 100 metres |
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Range |
0-10V analogue
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| TEMP RANGE
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Electronics |
0 - 50°C |
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Sensor |
0 - 200°C |
| POWER SUPPLY
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Standard Supply |
230VAC, 50Hz or 115VAC 60Hz
12VDC version available to special order |
| GENERAL
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Module size (W
x D x H) |
60mm x 250mm x
80mm |
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Mounting |
Stand alone enclosure |
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