Page 1
Ranges from 0.6 mH2O to 700 mH2O
Accuracy 0.06%
Fully welded 316 stainless construction
4:1 Downranging
4 to 20 mA output
Full range of installation accessories
GE Druck
g
RTX 1930 Series
Remote Rangeable Level Sensor
Page 2
NEW GENERATION DIGITALLY
CONFIGURABLE SENSOR FOR A
WORLD OF LEVEL MEASUREMENT
Proven Technology
Since 1972, Druck products have successfully applied technological
innovation and application focus to a diverse and demanding world of
pressure. Now part of GE Industrial Systems' Measurement & Sensing
Technologies business, GE Druck manufactures a comprehensive range
of pressure sensors and related test/calibration instruments for the field,
workshop and laboratory.
The RTX 1930 Series, through the use of digital correction techniques
and a serial configuration interface, offers a 4-20mA sensor with
unparalleled accuracy, flexibility and reliability.
Asset Management
The accuracy and flexibility of the 1930 Series reduces the whole life
cost for the user in a variety of level applications.
Surface water
Tank level
Borehole water
Waste water and remediation
Flexibility
The ability of each unit to be configured across a wide spectrum of
levels through the use of a simple Windows based software via the
serial interface, reduces inventory and simplifies site installation and
maintenance.
Reliability
The fully welded construction of the RTX 1930 sensor, which contains
no O-rings and incorporates all the enhanced features of a GE Druck
family of level sensors developed over 25 years of application use,
provides an ideal long-term solution for a reliable, accurate and
economical level measurement.
The GE Druck micro-machined silicon diaphragm is sealed within an all
316 stainless steel pressure module assembly. This is contained within
a 30 mm diameter body incorporating a sophisticated package of
analogue through-path and digital electronics, terminating in an injection
moulded cable assembly. The cable features are a Kevlar strain relief
cord and IP68 rating for indefinite immersion in 700 mH
2
O.
Ease of Use
A simple datum marked cable system is provided for ease of
installation. Incremental 1 metre datum points are clearly marked for
quick and accurate alignment below ground level. In addition, a range
of related accessories simplifies installation, operation and maintenance.
Simple Windows based Remote Configuration Software (RCS)
Rugged hardware interface for digital communication
Sink weights
Moisture-proof Sensor Termination Enclosure
In situ mA loop calibrator
RTX 1930 Series
Remote Rangeable Level Sensor
Page 3
STANDARD SPECIFICATIONS
Pressure Measurement
Operating Pressure Ranges
Any Full Scale (F.S.) between 0.625 mH2O to 700 mH2O gauge
Standard Pressure Ranges
The standard Upper Range Limit (URL) can be customer configured to
any intermediate range determined by the Range Adjustment Limits
0 to 2.5 mH
2
O gauge (URL)
0 to 5 mH
2
O gauge (URL)
0 to 10 mH
2
O gauge (URL)
0 to 15 mH
2
O gauge (URL)
0 to 20 mH
2
O gauge (URL)
0 to 35 mH
2
O gauge (URL)
0 to 50 mH
2
O gauge (URL)
0 to 100 mH
2
O gauge (URL)
0 to 150 mH
2
O gauge (URL)
0 to 350 mH
2
O gauge (URL)
0 to 700 mH
2
O gauge (URL)
Sensors can be provided with a pressure calibration at a downranged
F.S., (e.g., 17 mH
2
O) at an additional cost (refer to Option C).
Other units can be specified e.g. mmH
2
O, ftH2O, inH2O, mbar, psi, bar
Range Adjustment Limits
Downranging (4:1) - full 4 to 20 mA output change for any user span
setting up to the Upper Range Limit (URL) from 25 to 100% (URL).
Reverse (20 to 4 mA) - output can be inverted to generate a negative
going output with positive going level, e.g., 0 to 10 mH
2
O range
provides a 20 to 4 mA output as a power saving feature.
Elevation - the 4 mA output can be elevated within 0 to 75% of the
Upper Range Limit (URL) e.g., 0 to 40 mH
2
O range can be elevated up to
30 to 40 mH
2
O, with corresponding 4 to 20 mA output e.g for water
tower applications.
Overpressure
Standard Pressure Ranges (URL) can be exceeded by the following
multiples with negligible effect on performance:-
6 x for ranges to 2.5 mH
2
O
4 x for ranges above 2.5 mH
2
O (1400 mH2O max)
Pressure Containment
10 x for ranges to 2.5 mH
2
O
6 x for ranges above 2.5 mH
2
O (1400 mH2O max)
Media Compatibility
Fluids compatible with 316 stainless steel (body), acetyl (nose cone) and
polyurethane (cable assembly).
Excitation Voltage
10 V to 30 V
Minimum supply voltage (V min) which must appear across the level
transmitter terminals is 10 V and is given by the following equation:V min = V sup - (0.02 x R loop)
Where V sup is the supply voltage in volts, R loop is total loop resistance in ohms
Pulse Power Excitation
Recommended power-on time before output sample taken is 600 msec.
Output Signal
4 to 20 mA proportional to the level input in normal operation.
3.8 to 20.5 mA proportional to the Loop Cal input in Remote
Configuration Software (RCS) operation.
STANDARD SPECIFICATIONS
Performance Specification
Accuracy
The combined effects of Non-Linearity, Hysteresis and Repeatability on
standard pressure ranges (URL)
Standard: ±0.1% FS BSL max
Option A: ±0.06% FS BSL max
Zero Offset and Span Setting
Customer controlled with Remote Configuration Software (RCS).
Long Term Stability
0.1% URL per annum (0.2% for ranges below 5 mH
2
O)
Operating Temperature Range
Direct mount: -40° to 85°C
Fluid immersed: -10° to 80°C
Temperature Effects
+/- 0.1% URL (TEB) over -10° to 50°C
+/- 0.2% URL (TEB) over -40° to 80°C
Shock and Vibration
MIL-STD-810E, method 514.4., Category 10 min., Figure 514.4-16
The product will withstand 20g peak shock half sine wave, 9 mS
duration in all axes, also 2000g peak shock 0.5 mS duration in all axes.
Insulation
>10 M at 500 Vdc.
EMC
CE marked: EN61326-1
Software
Remote Configuration Software (RCS) provided free of charge with each
sensor, along with installation, maintenance and application instructions.
Physical Specification
Pressure Connection
G1/4 female fitted with detachable nose cone assembly, applicable for
direct mount or immersed applications.
Electrical Connection
Vented polyurethane cable with integral Kevlar strain relief cord rated to
54 kg load. Water ingress protection to IP68 to 700 mH
2
O.
Analogue 4 to 20 mA - 2 wires
Isolated digital interface - 4 wires (suitable for transmission up to 500
metres of cable).
Each unit provided free of charge with female Bulgin Buccaneer,
splash-proof connector for use with PC Configuration Interface Module
(Option B).
Cable Lengths
To be specified as required in 1 metre increments up to 500 metres.
Documentation
Units provided with traceable calibration certificate.
Page 4
RTX 1930 Series
Remote Rangeable Level Sensor
OPTIONS
A) Improved Accuracy
An improved accuracy of ±0.06% FS BSL for standard ranges.
B) PC Configuration Interface Module
Hardware RS232 serial interface assembly with 2.5 metre lead fitted
with mating Bulgin Bucaneer plug/socket. Essential option for
interfacing the RTX 1930 with the RCS software.
C) Downranged Pressure Calibration
The unit will be provided with a pressure calibration certificate at your
specified range (e.g., 17 mH
2
O etc...)
ACCESSORIES
A full range of accessories is available to enhance installation, operation
and maintenance of the 1930 series as listed below:
STE moisture proof Long Sink Weight 1930 Sink Weight
Sensor Termination 17.5mm Diameter 30mm Diameter
Enclosure (202-034-01) (222-116-01) (222-156-01)
Cable Clamp 360 Rotatable Economical Direct
System Calibration Adaptor Calibration Adaptor
(192-373-01) (DA4112-1-03) (DA2536-1-01)
RELATED PRODUCTS
GE Druck manufactures a wide range of pressure transducers and
transmitters, associated digital indicators, barometers and a complete
range of precision process calibrators and controllers for the field,
workshop and laboratory. A selection of these is shown below.
RTX 1000A/H rangeable transmitter DPI 610 portable pressure calibrator
and PTX7500 industrial transmitter and UPSIII precision loop calibrator
DPI 270/280 programmable DPI 515 high speed precision
level digital indicator pressure controller/calibrator
Please refer to GE Druck for further information on related products.
ORDERING INFORMATION
Please state the following:
1) Model type
2) Pressure range
3) Options (if required)
4) Cable length required
5) Accessories (order as separate items)
*Note:Option B - PC Configuration Interface Module required if
RTX 1930's are to be reconfigured.
Continuing development sometimes necessitates specification
changes without notice.
INSTALLATION DRAWINGS - Dimensions mm
165 approx
Ø 30
G 1/4 (female) thread
with nose cone removed
Ø 8 nominal
Orange: Digital Configuration V+ comms
White: Digital Configuration Rx comms
Yellow: Digital Configuration Tx comms
Black: Digital Configuration Ground comms
RTX 1930 Electrical Connections
Red: Analogue Supply Positive
Blue: Analogue Supply Negative
Screen wire connected to case
Druck Limited
Fir Tree Lane, Groby, Leicester, LE6 0FH, UK
+44 (0)116 2317100 Fax:+44 (0)116 2317103
E-Mail: sales@druck.com www.druck.com
Agent:
11/03
GE Druck
g
Loading...