RPS/DPS 8000

High accuracy resonant pressure sensor
Since 1972, Druck has manufactured precision pressure
sensors with a capability to meet critical applicationsin industrial, aerospace, oil and gas, and research
environments. Today, Druck is part of Baker Hughes andhas continually worked to develop and improve on theperformance of our pressure sensors to meet our customers’
requirements.

Features:

The RPS/DPS 8000 is the first product to incorporate theexciting new TERPS technology. TERPS is a resonant siliconpressure sensor technology platform that provides an orderof magnitude greater accuracy and stability than current
pressure measurement technologies. The new TERPS
technology also extends the pressure range capability tohigh pressures and, by incorporating true pressure media
isolation, greatly improves its suitability for use in harshenvironments.

• Media isolated construction, suitable for use in harshenvironments

In addition to providing the performance and packaging
improvements available with TERPS, the RPS/DPS 8000
product line takes advantage of best practices to offer awide range of pressure and electrical connections to enable
a level of customization for your specific requirements neverbefore available in the performance class of this sensor.
The combination of the power of the TERPS technology andthe quality, reliability and flexibility of the RPS/DPS 8000 Series
offers a truly unique solution for high accuracy and highstability pressure measurement requirements.

• High Precision, ±0.01% FS over compensated temperature
range• High Stability, ±100 ppm FS/year• Wide temperature range, up to -40°C to +125°C (-40° to257°F)• Multiple output configurations, RS-232, RS-485, USB 2.0,CAN Bus, frequency and diode (TTL)• Wide selection of pressure and electrical connections tosuit specific requirements

Specifications
Measurement

Supply response

Base pressure ranges

TTL: Accurate to specification within 500 ms of power up, over
all operating temperatures
RS232/RS485/CAN Bus/USB: Accurate to specification within
10 min of power-up• 0 to 2 bar (0 to 29 psi) absolute• 0 to 7 bar (0 to 101 psi) absolute• 0 to 14 bar (0 to 203 psi) absolute

Electrical protection• 0 to 20 bar (0 to 290 psi) absolute

RS232/485/CAN Bus/TTL:Connecting Vsupply and GND
between any combinations of pins on the connector will notdamage the unit

• 0 to 35 bar (0 to 507 psi) absolute• 0 to 70 bar (0 to 1015 psi) absolute

Insulation• 0 to 100 bar (0 to 1450 psi) absolute

RS232/485/CAN Bus/TTL: 100 Mohm @ 500 Vdc between allpins and case.

• 0 to 200 bar (0 to 2900 psi) absolute
Calibrated ranges
Any zero-based range between 1 and 200 bar (14.5 to 2900psi) can be specified. (Performance will be of the full scaleof the base pressure range selected.) Barometric ranges areavailable in the RPS/DPS 8100 series. The lowest calibratedpressure is 35 mbar absolute.

Performance

Overpressure

Specifications include combined effects of non-linearity,hysteresis, repeatability and temperature errors over thecompensated temperature range, and over the basepressure range of 35 mbar to the full scale pressure.

1.5X FS
Sensor failure pressure
2.0X FS
Pressure containment• Ranges to 7 bar (100 psi), 70 bar (1,000 psi)
• Ranges to 100 bar (1,000 psi), 200 bar (3,000 psi)
• Ranges to 200 bar (3,000 psi), 700 bar (10,000 psi)
Supply and output
Electronics
optionSupply voltage(V DC)

OutputCurrent consumption2(mA)

1

6 to 28Frequency anddiode TTL1,3,43.5

A

7 to 28

RS485

16.5 quiescent, 32 max

B

9 to 28

RS232

16.5 quiescent, 32 max

C

7.5 to 30

CAN Bus25 quiescent, 32 max

U

4.8 to 5.2

USB 2.040 quiescent, 100 max

There are two levels of performance specification:• Standard• Improved

Accuracy code

Precision

A1 - Standard

0.02% FSA2 - Improved

0.01% FS

• For frequency and diode output, the above accuracies areachievable by using a polynomial curve fit algorithm andcoefficient data supplied with sensor.
• Sensors are calibrated against standards traceable toUKAS operating to better than 100 ppm.
Compensated temperature ranges:
There are three compensated temperature ranges available:• -10 to +50°C• -40 to +85°C• -40 to +125°C (TTL and CAN Bus only)

1. Jitter less than 20 ns

Temperature effects

2. Full temperature range

All temperature effects are included in the accuracy
statement.

3. Square wave pressure signal, 25 kHz nominal, 4-10 kHz span
4. Forward voltage diode, 0.5 to 0.7 V @ 25°C (77°F), typically -2 mV/°C
nominalResponse time
< 300 msec for pressure change from 10% to 90% FS

Long term stability
Standard: ±0.02% FS/annum
Improved: ±0.01% FS/annum
Note: Unless otherwise specified, specifications are at the reference
conditions of 25°C (77°F) ±5°C (±9°F) and 1 bar (14 psi).

Orientation (g) sensitivity
Less than 0.2 mbar/g

Physical specifications
Storage temperature range

As compensated temperature range.
Operating temperature range
As compensated temperature range.
Pressure media
Fluids compatible with 316L stainless steel and Hastelloy C276

Please ensure that only the intended sealing face isused when mounting the sensor. Failure to comply withthis requirement may affect performance or calibration
accuracy.
Male threaded pressure connectors must not be sealed orconstrained against the face at the base of the thread. The
forward cone or flat face should always be used, as indicatedbelow.

Ingress protection
See electrical connector section
Vibration
BS EN 60068-2-6 (2008) sine sweeps 5 Hz to 2 kHz, levels to20gn
BS EN 60068-2-64 random 10 Hz to 2kHz to 4gn RMS for 1 hour
each axis
Less than 0.02% FS effect at any time
ShockDO-160E 9 (Figure 7.2) 20 gn 11 ms terminal saw-tooth profile
Humidity

Electrical connector
Code no.

Description

Max operating temp. range°C°F

IP rating

0No connector-55 to +125-67 to +257

-1Cable gland-40 to +80-40 to +176

65

2Raychem cable-55 to +125-67 to +257

65

3

Polyurethane
depth-40 to +80-40 to +176

68

• G1/4 Female*

4Hytrel depth-40 to +80-40 to +176

68

• G1/4 Male Flat

6Bayonet MIL -C26482-55 to +125-67 to +257*

• G1/4 Male 60° Internal Cone

C1/2 NPT conduit-40 to +80-40 to +176

67

• G1/8 Male 60° Internal Cone

GM12 X 15-pin-55 to +125-67 to +267

*HPTFE cable(orange)-55 to +125

-67 to +267

54

M

MIcro USB socket-40 to +85-40 to +185

-MIL-STD-810D method 507.2 procedure III(aggravated humidity environment, 65°C, 95% RH)
Pressure connector
Available options are:• 1/4 NPT Female*• 1/4 NPT Male• 1/8 NPT Male• M20 x 1.5 Male (3mm bore)• M14 x 1.5 60° Internal Cone
• M12 x 1 Internal Cone

* Hermetically sealed connectors with a maximum leak rate of 1 x 10-6 cc/s
at 1 atmosphere. High IP rated mating connectors are available.

Certifications• CE Marked• 7/16-20 UNF Male 74° External Cone

• RoHS• G1/2 Male*• EMC Standards:• G1/4 Quick Connect• BS EN 61000-6-1: 2007, Susceptibility - light industrial.

• 1/2 NPT Male

• BS EN 61000-6-2: 2005, Susceptibility - heavy industrial.

• G1/4 Male Flat Long

• BS EN 61000-6-3: 2007, Emissions - light industrial.

• 7/16-20 UNF Female• BS EN 61000-6-4: 2007, Emissions - heavy industrial.

• Depth Cone (G1/4 Female)•	BS EN 61326-1: 2013, Electrical equipment formeasurement, control and laboratory use -EMC
requirements.

• 7/16-20 UNF Male Short Flat
• 3/8-24 UNJF
• 1/4 VCR Female• 1/4 VCR Male** choose one of these connectors for pressure ranges above 100 bar.
Other pressure connectors may be available. Contact Baker Hughes todiscuss your requirement.

•	BS EN 61326-2-3:2013 Requirements for pressuretransducers.

Connection details
Function

Function

Frequency
and diode

DigitalRS485

Digital RS232

Digital- CAN
Bus

OptionCodeConnection

RED

SUPPLY +VE

SUPPLY+VE

SUPPLY+VE

SUPPLY+VE

M12GYELLOWFREQRS485 BRx

CAN Hi

GREEN+VE TEMPRS485 ATx

CAN LoBLUE

GROUNDGROUNDGROUND

SUPPLY-VE

BLACK-VE TEMP--CAN 0V

ORANGE

EEPROM---Option

Code

Connection

Flyingleads

0DigitalRS485

Digital RS232

1

SUPPLY+VE

SUPPLY+VE

SUPPLY+VE

N/C

2FREQ

RS485 BRx

SUPPLY+VE

3GROUNDGROUNDGROUND

SUPPLY-VE/CAN
0V

4+VE TEMPRS485 ATx

CAN HI

5EEPROM--CAN LO

Function

Function

Frequency
and diode

DigitalRS485

Digital RS232

Digital- CAN
BusOption

CodeConnection

RED

SUPPLY +VE

SUPPLY+VE

SUPPLY+VE

SUPPLY+VE

PTFEH

YELLOW

FREQ

RS485 BRx

CAN HiBLUE+VE TEMP

RS485 ATx

CAN LoWHITEGROUNDGROUNDGROUND

SUPPLY-VE

BLACK-VE TEMP--

CAN 0V

ORANGE

EEPROM---

SCREEN----Option

Code

Connection

CABLE

1, 3,4, C

Digital- CAN
BusFrequency
and diode

Frequency
and diode

DigitalRS485

Digital RS232Digital- CAN
BusRED

SUPPLY +VE

SUPPLY+VE

SUPPLY+VE

SUPPLY+VE

YELLOW

FREQ

RS485 BRx

CAN Hi

GREEN+VE TEMPRS485 ATx

CAN LoBLUE

GROUNDGROUNDGROUND

SUPPLY-VE

BLACK

EEPROM---WHITE-VE TEMP--

CAN 0VSCREEN

CASE

CASE

CASE

CASE

Function
OptionRAYCHEM

Code2

Frequency
and diode

DigitalRS485

Digital RS232

Digital
- CAN
Bus

RED

SUPPLY+VE

SUPPLY+VE

SUPPLY+VE

SUPPLY+VE

WHITE

FREQ

RS485 BRx

CAN Hi

GREEN+VE TEMPRS485 ATx

CAN LoConnection

BLUE

GROUNDGROUNDGROUNDEEPROM---

SCREEN----Function
Frequency
and diode

DigitalRS485

Digital RS232

Digital- CANBusA

SUPPLY +VE

SUPPLY+VE

SUPPLY+VE

SUPPLY+VE

B

FREQ

RS485 BRx

CAN HiC+VE TEMPRS485 ATx

CAN LoDGROUNDGROUNDGROUND

SUPPLY-VE

E

EEPROM---F-VE TEMP--

CAN 0V

CodeConnection

MIL-C

6Frequency
and diode

DigitalRS485

Digital RS232

Digital- CAN
Bus

1--+5 V

-

2--

D-VE

3-

-

D+VE

4--ID

5--

GROUND

OptionCodeConnection

MicroUSBM

SUPPLY-VE/CAN 0V

BLACK

OptionFunction

Maximum
cable
length (m)Frequency
and diode

DigitalRS232

Digital RS485

CAN BusUSB*1

10101000

1000

2Note*1: Cable not provided with USB option.

Dimensional drawings

Notes:
1.

All dimensions are nominal lengths and are subject to change.

2.

All dimensions are in millimeters (inches).

3.

Other pressure and electrical connectors may be available, please contact Druck.

Ordering information(1) Select model code

Main product variant
RPS Resonant pressure sensor - frequency and diode output (Note 1)
DPS Digital pressure sensor - digital output (Note 1)
Diameter, material and isolation
80
25 mm stainless steel oil isoliated		 Electrical connect		 0No electrical connector (flying leads)		 1
Polyurethane cable IP65		 2Raychem cable		 3
Polyurethane cable (depth) IP68		 4
Hytrel cable (depth) IP68		 6
MIL-C-26482 (6-pin shell size 10)		 C1/2” NPT conduit with polyurethane cable (non-exd only)		 G
M12x1 5-pin		 H
Orange PTFE cable		 M
Micro USB socket (Note 3)			 Output option (Note 6)			 1Frequency and diode (TTL)			 ARS485			 BRS232			 CCANBus			 UUSB 2.0 (Note 4)				Compensated temperature range				TA-10 to +50 °C				TB-40 to +85 °C				TC-40 to +125 °C (Note 2)					 Accuracy					A1 - Standard 0.02%					A2 - Improved 0.01%						 Calibration						 CCFull thermal calibration							Hazardous area approval							H0None								 Pressure connector								 PAG1/4 female (Note 5)								 PBG1/4 male flat								 PCG1/4 male 60° internal cone								 PDG1/8 male 60° internal cone								 PE1/4 NPT female (Note 5)								 PF1/4 NPT male								 PG1/8 NPT male								 PHM20x1.5								 PJM14x1.5 60° internal cone								 PKM12x1 internal cone								 PL7/16-20 UNJF male 74 degree external cone								 PNG1/2 male								 PQG1/4 quick connect								 PR1/2 NPT male								 PTG1/4 male flat long								 PV7/16-20 UNF female								 PW Depth cone (G1/4 female)								 PX7/16-20 UNF male flat								 PY3/8-24 UNJF								 RA1/4 VCR female								 RF1/4 VCR male (Note 5)
RPS80

41 - TA - A2 - CC - H0 - PA(Typical model code)

Note 1: RPS variants require Output Option Code ‘1’. DPS variants require Output Option Code ‘A’, ‘B’, ‘C’ or ‘U’.
Note 2: Requires Output Option Code ‘1’ or ‘C’ and Electrical Connector Codes ‘0’, ’2’, ’6’, ’G’, or ’H’.
Note 3: Only available with USB output option.
Note 4: Only available with micro USB socket connector.
Note 5: Choose one of these connectors for pressure ranges above 100 bar..

Ordering information (cont.)
2) State pressure range and units (e.g., 0 to 20 bar, 0 to 100 psi):
Unit options are:Symbol		Descriptionbar		barmbar		millibar
psi		pounds/sq. inch
Pa		PascalhPa		hectoPascalkPa		kiloPascal
MPa		megaPascal
mmH2O		

mm water

cmH2O		

cm watermH2O		

metres water

inH2O 		inches waterftH2O		

feet watermmHg		mm mercuryinHg		inches mercury
kgf/cm2		kg force/sq. cmatm		atmosphere
Torr		torr3) State cable lengths and units e.g., 1 m cable, 3 ft cable (only required on certain electrical connectors):
Note 6: Maximum cable length: (1) Frequency & Diode - 10 m, (A) RS485 - 1000 m, (B) RS232 - 10 m, (C) CAN Bus - 1000 m. Integer values only,e.g. 1m (3 ft) cable. Minimum cable length is 1m (3 ft) if cable is supplied.

Typical order examples:
RPS 8011-TA-A1-CC-H0-PA, 0-7 bara, 5 m cable
DPS 806A-TB-A2-CC-H0-PL, 0-1,000 psia

Copyright 2023 Baker Hughes Company. All rights reserved.

920-519M

BHCS38685A		 (06/2023)

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