Capacitance Gauges CMR 375 (1 · 10-5

Capacitance Gauges CMR
375 (1 · 10-5 - 0.11 hPa),
temperature controlled
The capacitance diaphragm gauges CMR afford
highly accurate vacuum measurements. The
sensor is designed in ceramic technology, thus
assuring only marginal zero drift and
outstanding long-term and temperature stability.
Measurement & Analysis / Measurement / ActiveLine
CMR 375, 0.1 hPa F.S., pipe OD 1/2"
Measurement range from 1 · 10-5 to 0.11 hPa
Capacitive diaphragm gauge for ActiveLine
Sensor in ceramic technology
No memory effects
Materials employed have identical temperature coefficients
Excellent temperature compensation
Resistant to corrosive gases
Excellent zero stability
Similar Image
Additional protection against pollution by sensor shield
Dimensions
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Page 2
Measurement & Analysis / Measurement / ActiveLine
Technical Data
CMR 375, 0.1 hPa F.S., pipe OD 1/2"
Accuracy: % of measurement
Bakeout temperature max. at the flange
Flange (in)
Full scale
Measurement range max.
Measurement range min.
Membrane and measuring chamber
Output signal: Minimum load
Output signal: Pressure range
Output signal: Sensor error above
Output signal: Sensor error below
Pipe and flange
Pressure max.
Protection category
Resolution
Response time
Supply: Power consumption max.
Supply: Voltage
Temperature: Operating
Temperature: Storage
Temperature effect: on span
Temperature effect: on zero
Temperature stabilization
Volume
Weight
0.15
110 °C | 230 °F | 383 K
Tube OD 1/2"
0.1 hPa | 0.08 Torr | 0.1 mbar
0.11 hPa | 0.08 Torr | 0.11 mbar
1 · 10-5 hPa | 7.5 · 10-6 Torr | 1 · 10-5 mbar
Ceramics (Al2O3 <= 99.5 %)
> 10 k
1 - 9.8 V
> 9.8 V
< 0.4 V
Stainless steel
1,300 hPa | 975 Torr | 1,300 mbar
IP 40
0.003 % F.S.
130 ms
12 W
14-30 V DC
10-40 °C | 50-104 °F | 283-313 K
-40-65 °C | -40-149 °F | 233-338 K
0.01 % of reading/°C
0.005 % F.S./°C
45 °C | 113 °F | 318 K
4.2 cm3
900 g
Order number
Capacitance Gauges CMR 375 (1 · 10-5 - 0.11
hPa), temperature controlled
PT R25 140
Accessories
ActiveLine sensor cables
Sensor cable, 3 m
www.pfeiffer-vacuum.com
PT 448 250 -T
Page 3
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All data subject to change without prior notice. (01/21/2015)
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