Keller DCX-16 Specifications

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Autonomous DAtA ColleCtor

ca. 208 mm

smAllest DiAmeter – Ø 16 mm

The DCX-16 is an autonomous, battery-powered data collector in a stainless steel housing with a very small diameter of only 16 mm. The housing and the pressure sensor element are completely welded in, so sealing rings are eliminated at this point. In applications where a small probe diameter is an advantage, the logger can record the water level (pressure) and the tempe-rature over long periods.

As well as the battery compartment with its double seal, the small-diameter (16 mm) submersible sensor includes electronic circuitry featuring the latest microprocessor technology. It records the pressure and temperature of the medium with high measurement accuracy and resolu-tion, and it uses a mathematical model to correct any linearity or temperature errors made by the pressure sensor. High data reliability is guaranteed thanks to the use of a nonvolatile data memory.

The various conguration options allow the data logger to be adapted to the measuring point so that only specied events will be detected and stored. Event-controlled recording and log-inter-

val recording can be set independently of one another. In addition, installation data and comments on the measuring point can be stored in the logger. Installation is fast and simple with

xing disks of various sizes which can be tted as options: these match locking units (caps)

from different manufacturers for levels of 1” or more (2” or more with light plummet aperture), so measuring points can be implemented at a fraction of the previous cost. Three versions of the

data collector are available:

DCX-16

The sensor, electronics and battery are accommodated in one housing. To extract data, the

data collector must be removed from the measuring point, and the watertight screw cap that allows access to the read-out plug/interface must be unscrewed. The DCX-16 operates with an

absolute pressure sensor. In shallow water, when the inuence of air pressure uctuations has

to be taken into account, a second logger (barometric logger, obtainable separately) positioned on the surface of the water must be used to record the air pressure progression. The com-puter software then calculates the differential pressure or the water level by subtracting the two measured data.

DCX-16 SG/VG

Instead of a watertight screwed closure, these versions have a cable output. The interface plug

is xed on the sounding tube above the surface of the water with the help of a screw-on xing

disk. This means that there is no need to remove the DCX-16 SG/VG from the sounding tube in order to read the data. In the VG version (reference pressure measurement), the reference pressure-compensating capillary is routed in the same cable into the read-out plug housing; this also contains the reference

aperture (protected by a Gore-Tex® diaphragm) which produces the pressure equalization.

DCX-16 (sG/VG)

Version DCX-16

Version DCX-16 VG

M20x1,5

Thread for screw-on

xing disks

KELLER AG für Druckmesstechnik CH-8404 Winterthur

+41 52 235 25 25 info@keller-druck.com

DCX-16 SG/VG DCX-16

±1

Venting Holes for VG-Version

±1

192,5

KELLER Ges. für Druckmesstechnik mbH

D-79798 Jestetten

+49 7745 9214 0 eurocenter@keller-druck.com

PE cable reference

Ø 5,8 / 5-pole

Mark of the diaphragm position on the level sensor

27 mm

Ø16

Screw cap/ interface plug

KELLER America

Newport News, Virginia

1 877 253 5537 sales@kelleramerica.com

Electronics- resp.

battery housing

ø 16 mm

Mark of the diaphragm position on the level sensor

Edition 08/2013

Subject to alterations Companies approved to ISO 9001

www.keller-druck.com

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Specications

Pressure Ranges 10 mWC 20 mWC 50 mWC 100 mWC

DCX-16 PAA 0,8…2 0,8…3 0,8…6 0,8…11 bar abs. DCX-16 SG PAA 0,8…2 0,8…3 0,8…6 0,8…11 bar abs. DCX-16 VG PR 1 2 5 10 bar

Overpressure 2 x Pressure Range

System length* 10 m 20 m 50 m 100 m

PAA: Absolute. Zero at vacuum PR: Vented Gauge. Zero at atmospheric pressure (other ranges on request) *The system length can be selected (optional); for lengths of 100 m or more, use an anchor clamp. Tolerance for system length: ≤ 10 m: ± 2 cm; > 10 m: ± 1% of system length

Supply Lithium battery 3,6 V (Type AAA) Battery Life * 4 years @ 1 measurement/hour Output RS 485 digital

Electrical Connection Fischer DEE 103A054

Pressure Sensor Specications

Comp. Temperature Range -10…40 °C

Accuracy typ. 0,05 %FS Error Band *** (-10…40 °C) 0,1 %FS Resolution max. 0,0025 %FS

Long Term Stability typ. 1 mbar

Temperature Compensation -10…40 °C (others on request)

Temperature Measurement Accuracy typ. ± 1 °C Shortest Measuring Range 1x per second Memory 2 MBit: 57’000 measuring values @

storage measuring

ed time) Material Stainless steel AISI 316L

O-Ring: Viton

interval ≤ 15 s, otherwise 28’000

values (always with attribut-

Cable PE cable

Probe Weight ≈ 150 g (without cable) Options Other pressure connections, larger data memory material

, different accuracy, other

: e.g. Hastelloy or Titanium

* exterior inuences could reduce battery life ** Linearity + Temperature Error *** Includes Linearity + Repeatability + Hysteresis

LOGGER 5

The Logger 5 software makes it possible to congure and read autonomous KELLER data loggers. This software assists users during measurements in the eld, with processing the data and also with forwarding it to partners or end customers.

Measurement data can be displayed in graphic form, exported, compensated for air pressure or converted into different units. The online function

displays the current device values.

The software is included in the scope of delivery for the interface converter cables, or it can be downloaded free of charge at www.keller-druck.com.

• Supports Windows operating systems

Overview of functions: Logger 5

- Pressure and temperature channels, selectable

- Adjustable measurement interval (1s…99 days)

- Averaging with selectable number of measurements

- Recording modes:

• continuous interval measurement

• event-controlled recording:

· recording starts when value is exceeded

· recording starts when value is undercut

· recording starts when value changes → combination of continuous and event-controlled recording is possible

- Adjustment of pressure zero point

- Start measurements immediately or at a set time

- Data storage: linear or ring-type memory

- Battery status display

- Online display of measuring channels

- Management of notications and images for stations

Processing and forwarding measurement data

- Graphic display of measurement data

- Simple export of measurement data and graphics (supports Microsoft Ofce and these le formats:

CSV-1, CSV-2, XML, Hydras, TNO, Wiski, BNA)

- Generation of measurement reports

- Station information stored in SQ Lite database