1800 series

Druck high performancelevel pressure sensors
The PDCR 1800 transducer (mV output) and the PTX 1800
transmitter (4 to 20 mA output) are the latest generationof fully submersible titanium high performance sensors formeasurement of hydrostatic liquid levels.

Features• Ranges from 0.75 mH2O to 600 mH2O
• Accuracy ±0.10% full scale (FS) best straightline (BSL)• Fully welded 17.5 mm diameter titanium construction• Polyurethane and hydrocarbon resistant cables• Full range of installation accessories

Applications

The 1800 Series incorporates many enhanced featuresgained from experience in supplying thousands ofsensors for small and large scale installations worldwide.
Example applications include:• Potable water
From ground water borehole to surface water levelmeasurements in rivers, canals and reservoirs.
• Waste water and remediation
Monitoring of secondary and outflow sewage levels andcontaminated ground water levels in land fill sites.
• Tank level
From land based liquid storage vessels to on-board shipballast tank monitoring.
• Sea water
Marine environmental applications, including tide gauging,coastal flood protection and wave profiling, amongst
others.

Reliability and data quality
The combination of a high technology sensor, together withadvanced signal conditioning and packaging techniques,
provides an ideal long term solution for reliable, accurate
and economical level measurements. The micromachined
silicon element is sealed within an all-titanium pressure
module assembly, fully isolated from the pressure media.
This is contained in a slimline, welded titanium body,terminated in an injection moulded cable assembly. Thecable features a Kevlar® strain cord and is IP68 rated for
indefinite immersion in 700 mH2O, with a selection of cablematerials to meet the application.

Ease of use
A simple datum marked cable system is provided for easeof installation. 1 m datum points are clearly marked forquick and accurate cable alignment below ground level.
In addition, a full range of related accessories simplifies
installation, operation and maintenance, including:• Quick-release cable clamp assembly• Slimline and short profile sink weights• Moistureproof Sensor Termination Enclosure• In-situ pressure test/calibration adapters1800 series specifications
Pressure measurementOperating pressure ranges
PDCR 1800 (mV)
0.75, 1.5 mH2O gauge, 3.5, 7, 10, 15, 20, 35, 50, 70, 100, 150, 200,350, 600 mH2O gauge and absolute
Other units may be specified
PTX 1800 (mA)Any zero based FS from 0.75 to 600 mH2O gauge and 3.5 to
600 mH2O absolute.
Other units may be specified, such as ftH2O, inH2O, bar, mbar,kPa, kg/cm2, psi
Overpressure
The operating FS pressure range may be exceeded by thefollowing multiples with negligible effect on calibration:• 8 x for ranges up to 1.5 mH2O
• 6 x for ranges above 1.5 to 3.5 mH2O
• 4 x for ranges above 3.5 mH2O (1400 mH2O max.)

Pressure containment• 10 x for ranges up to 3.5 mH2O gauge• 6 x for ranges above 3.5 mH2O gauge(1400 mH2O maximum)• 200 bar for absolute ranges
Media compatibility
Fluids compatible with titanium (body), acetyl(nose cone) and polyurethane or Hytrel® 6108 (cableassembly)

1800 series specifications
Excitation voltage
PDCR 1800 (mV)
10 V at 5 mA nominal

105 mm approx

PDCR 1800

Ø17.5 mm
M14 x 1.5 exposed threadwith nose cone removed

Output is ratiometric to supply
within 2.5 V to 12 V limits.

Ø 8 mmnominal

185 mm approx.
(242 mm with Lightning Surge Arrestor)

PTX 1800 (mA)
9 to 30 V

The minimum supply voltage (VMIN) which must appear
across the pressure transmitter terminals is 9 V and is givenby the following equation:
VMIN = VSUP - (0.02 x RLOOP)
Where VSUP is supply voltage in Volts, and RLOOP is total loop
resistance in Ohms

Pulse power excitation

Recommended power-on time before output sample:• PDCR 1800: 10 ms• PTX 1800: 30 ms

Output signal
PDCR 1800• 25 mV for 0.75 mH2O range• 50 mV for 1.5 and 3.5 mH2O ranges• 100 mV for ranges 7 mH2O and above

PTX 1800

4 to 20 mA, proportional for zero to FS pressure

Common mode voltage
PDCR 1800

Typically +3.5 V to +9 V
with respect to the negative supply

Output impedance
PDCR 1800

Ø17.5 mm
M14 x 1.5 exposed threadwith nose cone removed

Ø 8 mmnominalInstallation Drawing
Electrical connections
PDCR 1800 - Polyurethane cable
PDCR 1800 - Hytrel® 6108 cable
Red:Supply positive
White:
Supply negative
Yellow:
Output positiveBlue:
Output negative
Screen wire connected to case
(IS version: screen not connected)
Remaining cores not connected

PTX 1800 - Polyurethane cable
PTX 1800 - Hytrel 6108 cable
Red:
Supply positiveBlue:
Supply negative
Screen wire connected to case
(IS version: screen not connected)
Remaining cores not connected

Zero offset and span setting
PDCR 1800• Typical: ±1.5 mV• Maximum: ±3 mV

PTX 1800• Maximum: ±0.04 mA

Long-term stability±0.1% FS per annum

Operating temperature range-20 to 60°C (-4 to 140°F)

Compensated temperature range-2 to 30°C (28 to 86°F)

2 kΩ nominal

Temperature effects

Performance specification• ±0.6% FS TEB for ranges below 3.5 mH2OAccuracy

Combined effects of non-linearity, hysteresis andrepeatability:• Standard: ±0.1% FS BSL maximum• Option D: ±0.06% FS BSL maximum(±0.08% FS BSL max. for 1 mH2O and below)

PTX 1800• ±0.3% FS Temperature Error Band (TEB) for 3.5 mH2O range
and above

Shock and vibration

MIL-STD-810E, method 514.4
Category 10 min. Figure 514.4-16
Product will withstand 20 g peak shock half sine wave
9 ms duration in all axes, also 2000 g peak shock
0.5 ms duration in all axes

Insulation

Standard: >100 MΩ at 500 Vdc
Intrinsically Safe Version: <5 mA at 500 Vac

1800 series specifications
Intrinsic safety (Option B)
PDCR 1800: ATEX, IECEx and UKEX Certified(BAS02ATEX1250X, IECEx BAS 15.0076X and BAS21UKEX0410X)
for use with IS barrier systems to Ex ia IIC T4 Ga(-40°C ≤ Ta ≤ 80°C) for cable lengths up to 100 metres
PTX 1800: ATEX, IECEx, and UKEX Certified:(BAS01ATEX1018X, IECEx BAS10.0077X and BAS21UKEX0408X) for
use with IS barrier systems to Ex ia I Ma (40°C ≤ Ta ≤ +80°C)
and Ex ia IIC T4 Ga (-40°C ≤ Ta ≤ +80°C) for cable lengths up
to 300 metres

Physical specification
Lightning Surge Arrestor (Option for PTX versions only):
Integral lightning protection assembly certified to Standard
IEC 61000-4-5 (Level 4)

Accessories
A full range of accessories is available to enhance
installation, operation and maintenance of the 1800 Series aslisted below:• STE moisture proof sensor termination enclosure(202-034-05)• Slimline sink weight Ø17.5 mm (DA2608-1-01)• Short sink weight Ø25 mm (DA4068-1-01)• Cable clamp system (192-373-01)• 360° Rotatable calibration adapter to:
G1/8 (DA4112-1-01) or 1/8 NPT (DA4112-2-01)• Economical direct calibration adapter to:
G1/8 (DA2537-1-01)• Accessory pack contains (S01830E) STE box, Slimline sinkweight, cable clamp, direct calibration adapter

Pressure connection (Option C)
Standard: Radial holed M14 x 1.5 mm male thread fitted withprotective acetyl nose cone

Options

Option C: Screw on welded pressure connection(C) Alternative Pressure Connection (PTX 1800 only) In placeof the standard acetyl nose cone, a welded male pressureconnection can be supplied

Available (PTX 1800 all ranges, and PDCR1800 forranges ≥10 mH2O):
G1/4 Male flat end
G1/4B (flat end) 6mm hole
1/4 NPT MaleM12 x 1 Male
1/8-27 NPT Female
M14 x 1.5 60° Int Cone
Electrical connection
1830: Vented polyurethane cable with integral Kevlar® strain
relief cord rated to 54 kg load. Water ingress protection IP68
to 700 mH2O
1840: Vented Hytrel® 6108 cable (hydrocarbon resistant) withintegral Kevlar® strain relief cord rated to 54 kg load. Water
ingress protection IP68 to 700 mH2O
Cable lengths
To be specified as required in 1 meter increments up to 500
meters for PTX 1800 and up to 100 meters for PDCR 1800 (forIS restrictions see Intrinsic Safety above). For longer lengths
refer to Druck.
CE marking
CE marked for electromagnetic compatibility and, for ATEX
version only, use in potentially explosive atmospheres
Documentation
Detailed user instructions are provided with specificcalibration data. They are supplied in English, French,
German, Italian, Spanish or Portuguese.
Language selected on order(B) Intrinsically Safe Version(D) Improved Accuracy

Ordering information
Please state the following:(1) Select model number
Code
PDCR 18
PTX 18ModelmV output
mA output
Code Cable type3
Polyurethane
4Hytrel® 6108		
Code Lightning Surge Arrestor
0Not Required5
Fitted________(2) Pressure range and scale units(3) Options (if required)(4) Cable length required(5) Accessories (order as separate items)(6) Supporting Services (order as separate items)

Supporting services
Our highly trained staff can support you, no matter where
you are in the world. We can provide training, nationallyaccredited calibration - both initially and at periodic intervals- extended warranty terms and even rental of portable orlaboratory calibrators. Further details can be found at
druck.com

Delivering world classpressure measurement
and calibration technology
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920-655C
BHCS38621(09/2024)