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GE
Sensing
Druck Portable High
Pressure Hydraulic
Calibrators
g
• High accuracy 0.025% full scale (FS)
• Generates pressures up to 10,000 psi (700 bar)
• Dual pressure and electrical readout
• Thermal compensator for high speed stable control
• Unique vacuum priming of hydraulic system
• RS232 interface and documenting versions
The DPI 330/335 Series is designed to make the
calibration of hydraulic systems and instrumentation
quick and simple. Two versions are available, the DPI 330
and the DPI 335. The DPI 330 is the standard model with
RS232 interface and the DPI 335 has full documenting
capability.
These self-contained portable calibrators provide
unparalleled accuracy and performance. Hydraulic
pressures up to 10,000 psi (700 bar) can be generated
quickly and easily with excellent setpoint control.
Features
DPI 330/335 Series is a Druck
product. Druck has joined other GE
high-technology sensing
businesses under a new name–
GE Industrial, Sensing.
DPI 330/335 Series
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Unique Priming System
The DPI 330/335 uses a unique priming system to
conveniently fill the hydraulic system under test . The
pressure/vacuum selector valve, combined with the
priming pump, first evacuates the system and then fills
the system with fluid from the reservoir and generates
the initial pressure. Once the system is primed, any
desired pressure can be easily set using the pressure
pump and volume adjuster.
Excellent Control Stability
The thermal compensator eliminates adiabatic thermal
effects which are generated by pressure changes within
the hydraulic system. This innovative feature holds the
generated pressure steady while a nudge facility allows
the exact pressure to be set. Overall test/calibration time
and precision is significantly improved.
Dual Channel Display
The DPI 330/335 are dual channel instruments able to
display the input and output values simultaneously. The
calibrators are capable of providing current and voltage
excitation to the device under test and can measure DC.
voltage, DC current and ambient temperature. Electrical
terminations are made via industry standard 4 mm
sockets and the large backlit display provides a clear
readout of the process parameters.
Application Specific Task Menu
A dedicated task key provides instant access to the task
menu permitting the calibrator to be configured for
specific applications. For example, the P-I task configures
the calibrator to source pressure and measure current.
24 VDC loop power is also available to allow complete
pressure transmitter calibration. Running the Pressure
Switch task captures the open and closed switch values
and calculates switch hysteresis. The contact resistance
of the switch can also be monitored.
Reduced Process Downtime
The DPI 335 version enables calibration criteria to be
easily entered via the keypad allowing fast diagnosis of
field instruments and automatic reporting of errors with a
Pass or Fail status. When used in conjunction with i4i
(Intecal for Industry) calibration management software,
test procedures can be downloaded to the DPI 335 from
a PC. The calibrator will prompt the technician during the
calibration routine and the results will be recorded
electronically, reducing plant downtime and human
errors.
GE
Sensing
Rugged transit case
High contrast,
menu-driven dual
function display
Thermal
compensator
control panel
1/8 NPT or BSP
test port
Volume adjuster
Pressure pump
Priming pump
Pressure/
vacuum
selector valve
Reservoir
Remote
sensor
connection
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General
Pressure
The DPI 330/335 series include an internal pressure
sensor. The pressure range should be selected below.
DPI 330/335
Specification
Temperature Effects
(Averaged and w.r.t. 20°C) w.r.t. ±0.004% reading/°C
Pressure Source
Internal hydraulic reservoir (volume 300 cubic inches)
with volume adjuster high pressure pump and pre-prime
pump.
Recommended Media
Mineral oil or distilled water
External Pressure Sensor
Up to 10 remote-sensors (option B) may also be ordered
per calibrator and connected to the instrument via the
1/4 in test port. Consult factory for available ranges.
Test Port Connections
1/8 NPT or BSP female
Input Range Accuracy Resolution Remarks
Voltage* ±50 VDC 0.05% Rdg 0.004% 100 :Vmax Autoranging
FS >100 MW
Current* ±55 mA 0.05% Rdg 0.004% 0.001 mA 10 W, 50 V
FS maximum
Temp 15°F to 105°F 2°F (-16°C) 0.1°F (-17°C) Case ambient
(-10°C to 40°C)
Switch Open/Closed 5 mA whetting
Output Range Accuracy Resolution Remarks
Voltage 10 VDC 0.01% Maximum load
10 mA
Voltage 24 VDC. 5% Maximum load
26 mA
Current* 0 to 24 mA 0.05% Rdg. 0.01% FS0.001 mA
*Temperature coefficient 0.0075% reading/°C w.r.t. 20°C
GE
Sensing
Pressure Accuracy* Maximum Type**
Range (% FS) Overpressure
1000 psi (70 bar) 0.025% 2000 psi (140 bar) G or A
2000 psi (140 bar) 0.025% 4000 psi (275 bar) G or A
3000 psi (200 bar) 0.025% 6000 psi (400 bar) G or A
5000 psi (350 bar) 0.025% 10,000 psi (700 bar) G or A
10,000 psi (700 bar) 0.025% 12,000 psi (825 bar) G or A
*Combined non-linearity, hysteresis and repeatability.
**G = Gage, A = Absolute (pressure reference).
Electrical
In addition to pressure, the dual display can
simultaneously monitor mA, V, switch, continuity and
ambient temperature. Also, 10 VDC and 24 VDC power
supplies are available for the device under test (DUT).
Features
Pressure Units
25 scale units plus one user defined.
mA Source
Auto 10 second step cycle and programmable
(60 second end-to-end) ramp
Process Functions
Filter, maximum/minimum, tare, flow, and % span.
Power Management
Auto power off, auto backlight off, battery status
indicator.
Display
2.36 in x 2.36 in (60 mm x 60 mm) graphic LCD with
backlight. ±99999 readout, 2 readings per second.
Data Storage
92 KB memory
Environmental
Temperature
• Operating range: 15°F to 120°F (-10°C to 50°C)
• Calibrated range: 15°F to 105°F (-10°C to 40°C)
Humidity
0 to 90% non-condensing.
Sealing
Type 12/IP54
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DPI 330/335
Specification
GE
Sensing
Conformity
• EN61010
• EN61326 Class A
• CE marked
Physical
23 lb (10.4 kg)
Dimensions
16.9 in x 10 in x 6.5 in (429 mm x 254 mm x 165 mm)
Power Supply
Battery powered 7.2 V NiMH cell. In addition, the unit will
operate from AC power supply 85 V to 265 V,
45 to 400 Hz which also allows the battery pack to
recharge. Display indicates a low battery condition.
DPI 335 Additional Specifications
The fully documenting DPI 335 also provides the
following features:
Error analysis with Pass/Fail status and graphs. Storage
of As Found and As Left results. Two-way PC interface for
transferring test procedures and results. Compatible with
Intecal for Industry software.
Options
(A) Intecal for Industry
Developed to help meet the growing demand on
industry to comply with quality systems and
calibration documentation. Test procedures are
created on screen in a Windows based utility and
devices due for calibration are reported and grouped
into work orders for transfer to the DPI 605, DPI 615,
DPI 325 and DPI 335, TRX II and the MCX II.
Calibration results, including files from the DPI 615,
are uploaded to the PC via the RS232 interface or
g
©2006 GE All rights reserved.
920-106A
All specifications are subject to change for product improvement without notice.
GE
®
is a registered trademark of General Electric Co. Other company or product
names mentioned in this document may be trademarks or registered trademarks
of their respective companies, which are not affiliated with GE.
www.gesensing.com
PCMCIA card for analysis and or printing calibration
certificates. Visit www.ge-intecal.com for Intecal for
Industry demonstration.
External Pressure Sensor
(B1) The DPI 330/335 Series has a second pressure
channel which can be configured with up to 10
remote pressure sensors (one at a time). For ease of
use the sensors are fitted with an electrical
connector and 1/4 in pressure ports.
At least one mating cable is required per DPI 330/335
when ordering remote pressure sensors.
(B2) A 3 ft (1 m) mating cable for connecting remote
sensors to the DPI 330/335.
(C) 1 quart ST 55 mineral oil (P/N PPA9152) if operation
with oil is desired.
Supplied as Standard
The DPI 330 and DPI 335 are supplied with a
rechargeable cell, battery charger, test lead, user guide
and calibration certificate as standard.
Calibration Standards
Instruments manufactured are calibrated against
precision calibration equipment traceable to International
Standards.
Related Products
• Portable field calibrators
• Laboratory and workshop instruments
• Pressure transducers and transmitters
Ordering Information
Please state the following (where applicable):
1. DPI 330 or DPI 335 type number, indicate 1/8 NPT or
BSP test port adaptors
2. Internal pressure range
3. Options (if required) including external pressure sensor
range
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