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© Servomex Group Limited 2017
AquaXact Issue 1.0
power supply. The 4-20 mA is linear to the
engineering units, the range is programmable.
Output resolution is 0.1 °C dew point or
~0.25 µA whichever is greater.
In the digital mode the AquaXact 1688 can be
remotely operated, the dew point & temperature
can be read.
Alarms:
The 4-20 mA signal or the digital output may be
used by an external device to operate relays.
Isolation:
The sensor is connected to the current loop but,
isolated from the AquaXact 1688 housing and
installation
Sensor
6.2
Type:
Thin film high capacitance Al
2
O
3
Dew point range:
-100 °C to +20 °C
Accuracy:
± 3 °C
Repeatability:
± 0.5 °C
Typical Response time:
See the graph in Appendix E
Temperature range:
-10 °C to +70 °C
Sample pressure range:
0 to 100 psig
Sample flow range:
2 to 15 l/min
Storage temperature:
-40 °C to +80 °C
Mechanical:
Encapsulated in 100µ sintered stainless steel
Calibration method:
NIST/NPL traceable multi-point factory calibration
Approvals / classifications
6.3
CE:
CE for electromagnetic compatibility, accredited laboratory tested and certified.
