4: MUX/Dalogger Assembly

5: Isolator Support Section

6: Flex Circuit Assembly

Pressure Transducer: Micromachined silicon piezoresistive strain gage
fused to stainless steel diaphragm.
Available Pressure Ranges (Absolute) : 0-25, 50, 75, 100, 250, 500
Accuracy, % of FSSpan ± 0.25% BSL, max (per ISA S37.2) (combined)
Total Error Band: +/-1.5% FS
Operating temperature range -40° to 100°C
Compensated temperature range -20° to 85°C
Media compatibility: 17-4 PH stainless steel (optional 316L stainless)

8: Transducer Housing

Transducer Housing and Pressure Port: 20, 40, 60, 80 Mesh available Stainless Steel port

2" diameter ASTM f 480 (2 tpi) flush-mount threaded PVC Male Fitting
(actual OD = 2 3/8", 2.375", 6.03cm). Tri-Loc fittings also available. Configured to accept screened section for transducer field calibration, water sampling, water-level monitoring.

Non-Vented, configured for low-noise succeptibility. Lengths are customized according to your field specifications. Topside connections to control box and laptop-accessible serial/USB connection.

40 Channel Multiplexer/Digital Datalogger Assembly

MULTIPLEXER
40 Channels Analog (30 Thermistor, 1 Current, 1 Transducer, 4 Power,
4 Diagnostic)
DATALOGGER
Data Storage: 512K SRAM (Output = 1.9 Mbytes: 5,400 data points,
216,000 separate values)
Sampling Rate: 1, 5,15 minute selectable; more options coming soon
Resolution: 16bit, 0.038mV
Baud Rate: 19,200, non-selectable
Clock Accuracy: ±1 minute per month
Power: 9 Vdc operation, CR2330 3V Lithium data back-up
INTERFACE
9 pin Female D-type connector at control box
DIGITAL COMPASS (Not Currently Available)
Heading Information: Accuracy ±2º RMS, Resolution 1º
Repeatability ±2º RMS, Tilt Range = None
Built-in Hard Iron Calibration, Operating Temperature: -20º to 70ºC