Model3016

Rack Mounted
Digital Sensor Array
Data Sheet No. G531Features• DSP technology• 0 - 750 psid pressure range• Intelligent pressure modules• Dual pressure ranges available• ±.05% full scale accuracy (most ranges)• 625 samples/channel/second• Temperature compensated pressure sensors

DSA3016/16Px
Digital Sensor Array

General Description
Model DSA3016, Digital Sensor Array, is a rack
mounted module designed for multiple pressure
measurements. Each DSA3016 module incorporates
16 temperature compensated piezoresistive pressure
sensors, along with a pneumatic calibration valve.
Field replaceable sensors assure that downtime
is minimized in the unlikely event of sensor damage.
Up to 8 DSA3016 Digital Sensor Array modules
can be used in a 19 inch rack enclosure, Model
DSAENCL4000.
The DSAENCL4000 pressure acquisition systemrepresents the next generation of intelligent electronicpressure scanning.
The state-of-the-art DSP technology is at the heart ofour new 19 inch rack mounted DSAENCL4000 enclosure. Located on the backplane of the enclosure, theDigital Signal Processor (DSP) is a programmabledevice capable of extremely fast math functions that
operate on the data stream in real time. All measurements are converted into Engineering Units.
Advantages of DSP technology:• Boots up quickly• Real Time Operating System• Low Data Latency
The DSAENCL4000 uses a micro SD card to store allconfiguration and module data. The SD card is easily
removed if needed for security reasons. The enclosure utilizes a pressure temperature look-up table tocompensate the pressure sensors for temperaturechanges, effectively negating any thermal errors.

The DSP processor also controls the actuation of
an internal calibration valve to perform on-line zero
calibrations. Long term system accuracy is achievedfor up to 6 months.
All DSA3016 modules manufactured after first quarter 2004 have an ID chip installed. The DSAENCL4000 DSP processor reads the serial number,pressure range, etc. of each DSA3016 module andits location in the enclosure from the DSA module ID
chip.

Applications
The DSA3016 (Digital Sensor Array) is ideal for measuring pressures on turbomachinery, turbine engines,
compressors, and other applications where precisionpressure measurements are required. The DSA temperature compensated pressure sensors are over ten
times more stable over the entire temperature range
than typical piezoresistive pressure sensors. Up to8 DSA3016 pressure modules are supported by aDSAENCL4000 enclosure, totalling 128 pressure
inputs per enclosure.
DSA3016 modules have a front panel power cutoff switch that allows them to be “Hot Swappable”
without having to power down the system. They also
have an illuminated power switch that blinks whenscanning. The DSAENCL4000 enclosure has an
Ethernet link and activity LED on the front.
DSA3016 pressure modules will work with all
DSAENCL3000, 3200, and 4000 series enclosures.
ISO 9001:2008 CERTIFIEDDSA3016 Features and Options
On-line Sensor Compensation
and Calibration
The DSA3016 incorporates individual pressure sensors are each uniquely thermally compensated andindividually packaged in rugged, field-replaceable
housings. Additionally, the transducers are factory
calibrated over their full pressure and temperature
ranges. The resultant calibration data are stored ina look-up table in FLASH memory.
The design includes integral pneumatic calibration
valves, which allows for “quick zero” correction.
When actuated, the positive side of the pressure
sensors are pneumatically shorted to the reference
manifold, creating a zero pressure differential. The
sensor offsets are then recorded.

DSA Calibration Valve Control Pressure

Common vs. Individual Reference
DSA3016 Digital Sensor Arrays are available intwo basic model types, common and individualreference. Common reference configurations are
standard and allow the user access to each individual sensor’s positive side, while the reference (ornegative) sides are manifolded in groups of eight.
Individual reference versions are available with eachsensor having an individual reference input.

High-Line Low Delta P Measurements
An optional rack mounted pressure module is available that incorporates a special pneumatic design,
which allows for a higher accuracy reading of a low
differential pressure measurement under high-line(reference) conditions. Safe zero calibrations can be
performed under high-line pressures.

The DSA3016 calibration valves are “NormallyPx” where no control pressure, or a loss of control
pressure, defaults the DSA calibration valve to theoperate (sense) mode. 90 psi control pressure isrequired to switch the DSA calibration valve into
purge, calibrate or isolate mode.

Dual Range
Each group of 8Px (pressure inputs) contains
its own calibration valving and reference connector,
thus a single DSA3016 module can incorporate up
two unique pressure ranges for maximum flexibility.

Isolate Purge Feature
A manifold purge feature is incorporated in
the DSA calibration valve. This purge method
isolates all of the pressure sensors from the purge
pressure. It is an ideal method for eliminatingcondensation, oil, dust or other contaminants in thepressure input tubing. This technique permits thesafe use of high purge pressures without damaging
the pressure sensors due to overpressure.

DIGITAL SENSOR ARRAYDSAENCL4000
Rack Mount Enclosure
Up to 8 DSA3016 Digital Sensor Array modules aredesigned to fit in Scanivalve’s 19 inch rack mounted
enclosures. Each enclosure incorporates a power
supply, DSP processor, and multiple 16 bit A/D’s toconvert all analog pressures to Engineering Units.
Communication interface is Ethernet TCP/IP or
RS-232. Only 1 IP address is required for each rack
mount enclosure (up to 128 pressures).

DSA4000 System Network
The DSAENCL4000 enclosure interfaces directly
to a PC, host computer or Ethernet network via
TCP/IP or RS-232. Scanivalve’s optional Configuration Utility software for LabVIEW® Runtime
is designed to assist a user in establishing communications and configuring the DSA enclosure.

DSAENCL4000
Additionally available is a Software Development
Kit for users who want to write their own detailed
data acquisition program in LabVIEW®. This Development Kit includes the Configuration Utility software and examples to assist a user in the setup ofthe system.

DSA3016 Specifications
Inputs (Px):Rear Access: 1/16 inch brassSwagelok® fittings (16 ea.)
Front Access: 1/8 inch brass
Swagelok® fittings (16 ea.)

Full Scale Ranges:±5 inch H2O, ±10 inch H2O, 1,2.5, 5, 15, 30, 50,100, 250, 500,600, 750 psid (±1.25, ±2.5, 7, 17, 35,100, 		Maximum
Reference Pressure: 250 psig (1725 kPa)Media Compatibility:		 Gases compatible with silicon, 				 silicone, aluminum and BUNA-N
Weight:		 DSA3016/16Px: 4 lbs. 12 oz. 				 (2.15 kgm)

205, 345, 690,1725, 3450, 4125, 5175 kPa)

Sensor Pressure

Accuracy:		
Range(Includinglinearity,5 inch H2O
hysteresis, and10 inch H2Orepeatability)
1 psid, 2.5 psid

Static Accuracy
After Rezero(% F.S.)±0.4%±0.2 %±0.12%
5 to 500 psid
±0.05 %		501 to 750 psid
±0.08%

Resolution:		
16 bit A/DScan Rate		
Maximum:		
625 samples/channel/second		 (user configurable) 			
OperatingTemperature:		
0°C to 55°C standard		

Overpressure
Capacity
5 inch H2O=2 psi (13.79 kPa)
(with no damage)
10 inch H2O = 2 psi (13.79 kPa)		 1 psid = 5 psi (35kPa)		 2.5 to 499 psid (3440 kPa) = 2.0x
500 psid (3450 kPa) = 1.5x		 750 psid (5175 kPa) = 850psi (5860kPa)

DSAENCL4000
Enclosure Specifications
Communication

Protocol:		 TCP/IP or UDP
Connector Type:		 I/O: RJ-45		 Trigger: Bendix PTO6A-12-10S,		 10 pin female
Interface:
Ethernet 10/100 BaseT (auto			crossover feature)		 RS-232 (9600 Baud)Power
Requirements:		
115Vac @ .87 Amp (100 VA)		 230Vac @ .44 Amp (100 VA)
Weight:		 DSAENCL4000:19.5 lbs (8.85kg)
		 With 8 DSA3016 modules:		 51.5 lbs (23.4kg)
LabVIEW® is a registered trademark of National Instruments.
Swagelok® is a registered trademark of Swagelok

Ordering Information
Module19 Inch Enclosure

DSA3016 / 16Px - 500psid/xxpsid - RA				DSAENCL4000		
Model		Pressure					Model 					Ranges		(Dual											Px Inputs
range-RA Rear Accessshown)												-FA Front Access
Inputs						- 16 Inputs/16 Sensors			
- 8D 8 True Differential Sensors-16D 16 True Differential Sensors (FA–Front Access 1/16” fittings only)

Dimensions inches (cm)19.00 [48.26]
18.30 [46.48]

15.00 [38.10]
14.10 [35.81]

1/8" SWAGELOK FITTINGS (STD)

8.75 [22.23]
5.75 [14.61]

DSA3016 RA 16Px MODULEOPTION SHOWNSERIAL PORTS(RS-232)

DIGITAL IN / TRIGGER
DIGITAL OUT

DSA3016 FA 16Px MODULEOPTION SHOWN

110/220VAC POWERENTRY

SYSTEM MEMORYACCESS PORT(MICRO-SD)ETHERNET(10/100 BASE T)

CONTROL PRESSURE SUPPLY(90PSI)

Scanivalve Headquarters
1722 N. Madson Street
Liberty Lake, WA 99019
Tel: 509-891-9970
800-935-5151
Fax: 509-891-9481
e-mail: scanco@scanivalve.com

PNEUMATIC INTERFACEFRONT ACCESS OPTION SHOWNPNEUMATIC INTERFACEREAR ACCESS OPTION SHOWN

www.scanivalve.com

Printed in USA												©
2012, Scanivalve Corp.

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