Delta F: DF-760E - Moisture Analyzer

Date Submitted: 24-02-2021 03:07:43

The DF-760E Nano Trace moisture analyzer is a combination Coulometric & Tuneable Laser
Diode sensor based analyzer, designed to measure trace oxygen and moisture as a contaminant in Ultra High Purity electronic grade gas for quality control.

FEATURES
clip_image006[10]Highly stable tuneable laser diode sensor for moisture measurement
clip_image011[4]Non-depleting sensor with 5 year sensor warranty for oxygen measurements
clip_image006[11]Minimal maintenance
clip_image006[12]Suitable for multiple background gases with a single unit


APPLICATIONS
clip_image001[12]Integrated Circuit Board Fabs
clip_image002[8]Leak detection

 

 
SPECIFICATIONS
 
 
Gas Type:
O2
Moisture
TECHNOLOGY
Coulometric non depleting electrochemical sensor
Tuneable  Laser Diode
PERFORMANCE
 
Maximum operating ranges:
0-20ppm
0-20ppm
Smallest recommended output range:
 
0-1ppb
 
0-2ppb
Intrinsic error (accuracy):
+/- 3% of reading or +/- 0.1ppb (whichever  is greater)
+/- 3% of reading or +/- 0.2ppb (whichever  is greater)
Response time (T90):
<15 seconds
<3 minutes at 1 liter/min
Zero drift/month:
Negligible
Negligible
Span drift/month:
Negligible
Negligible
Lower detection Limit (LDL):
75ppt
200ppt
Upset recovery time:
<5 minutes to return to within 10ppb of previous stable reading
<5 minutes to return to within 10ppb of previous stable reading
OUTPUTS/INPUTS
 
Output:
Isolated 4-20mA dc, for both moisture and oxygen, 0-1, 0-2, 0-5, or 0-10 VDC for both moisture and oxygen
(analog output can be configured to freeze during calibration)
Output range:
Scaleable to any range between 0-2ppb to 0-20ppm
Audible/visual alarms:
4 oxygen levels, 4 moisture levels, temperature, electrolyte condition, moisture sensor diagnostic, loss of flow, zero verification, or calibration in process, moisture analyzer off-line, oxygen analog output freeze control during calibration
Dual scale range:
Two user selectable secondary analog output ranges for rescaling the output once the primary range is exceeded
Relay contacts:
4 non-latching, independently assignable to oxygen alarms or oxygen calibration-in-process indicator, and
4 non-latching, independently assignable to moisture alarms.  SPDT contacts rated for 5 amps at 30V dc.
Up to 4 non-latching, independently assignable to alarms or indicators. SPDT contacts rated for 1amp at 30V dc.
Serial communications:
Factory configured RS232 or RS 485 two-way serial communications
Gas scale factor:
Background gas compensation for gases other than N2
Gas delivery system:
Pneumatically actuated springless diaphragm valves, orbital butt welded assembly with zero dead volume for sensor isolation and zero verification. High capacity purifier provides moisture and oxygen-free zero (not compatible on oxygen samples). Heated and temperature controlled sample delivery system. Integral pressure regulator with minimal wetted area. Bypass loop with flow control. 1⁄4” VCR inlet fittings, 1⁄4” compression bypass outlet fitting, 1⁄4” compression outlet fitting to vacuum source, 1⁄8” compression fitting for pneumatic gas inlet
Aspirator vacuum source:
Aspirator with ¼” compression inlet and outlet fittings
Mounting:
19” rack mount NEMA 1 enclosure
OPTIONS
 
Pump vacuum source:
Pump with ¼” compression inlet and outlet fittings
Hydrogen safety system purge:
Optional safety system for use with hydrogen includes Sample Delivery Interlock and Case Purge Valves for instrument housing, NEMA 4 enclosure and Z purge protection system for optional external vacuum pump. Hydrogen safety system can be ordered with or without the NEMA 4 enclosure and Z purge protection system for the optional vacuum pump (NOTE: hydrogen safety system limits available relays from 4 to 3)
SAMPLE GAS
 
Temperature:
50°F to 176°F (10°C to 80°C ) Recommended heated sample line to 140°F (60°C)
Dewpoint:
9°F (5°C) below minimum ambient
Condition:
Oil free, non-corrosive, non-condensing
Particulates:
Filtered to 2µm
Vent pressure:
Vent to atmosphere.
Sample flow:
2 to 5 l/min (For nitrogen only ) - contact Servomex for other background gases
Bypass flow:
0.25 to 2.5l/min
Sample pressure:
30 to 150psig (3.08 to 11.3 BarA)

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