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DO Sensors

TruDO

TruDO

Features

■ Fast response
■ Highly repeatable
■ Proven reliability
■ Suitable for
autoclave,
SIP and CIP
■ Certified
“Like for Like”
replacement for
Broadley-James/
Mettler-Toledo

TruDO – Dissolved Oxygen Sensor

The TruDO® family of re-buildable dissolved oxygen sensors is designed for superior performance. The semi-automated manufacturing process results in greater repeatability and improved reliability of these sensors in bioprocess applications such as cell culture and fermentation.


 

Specifications
Measurement Polarographic
Dissolved Oxygen 0 .1–200% air saturation
10 ppb to saturation
Temperature 0 –135°C
Pressure 4 bar maximum
Temperature Compensation 22 kohm thermistor
Wetted Materials 316L S.S.
Surface Finish Ra 12 (electro-polish)
Electrodes
D4/T82 VP
DOS-OFF-D4-120 DOS-OFF-VP-120
DOS-OFF-D4-225 DOS-OFF-VP-225
DOS-OFF-D4-325 DOS-OFF-VP-325
DOS-OFF-D4-425 DOS-OFF-VP-425
Sensors 25mm
D4/T82 VP
DOS-STD-D4-070
(Standard Port)		 DOS-STD-VP-070
(Standard Port)
DOS-STF-D4-070
(Safety Port)
Cables
D4/T82 VP
CAB-D4-06, 6 ft/2 m CAB-VP-06, 6 ft/2 m
CAB-D4-10, 10 ft/3 m CAB-VP-10, 10 ft/3 m
Membrane Replacement Kit
DOS-MEM-12
Polarizers 
DOS-POL-D4 (D4/T82)
DOS-POL-VP (VP)
Like for Like 12mm
Replaces Broadley-James Model D140/D145
Replaces Broadley-James Model D140/D145
Like for Like 25mm
Replaces Broadley-James Model D400/D405/D430/D435
Replaces Mettler-Toledo/Ingold Model InPro 6800

TruDO is a trademark of Finesse Solutions, LLC. © Finesse Solutions, LLC, 2009.

TruDO Optical Dissolved Oxygen Sensors

TruConnect

Features

■ CIP, SIP autoclave
compatible
optical dissolved
oxygen sensor
■ Equal or better
performance
than traditional
DO sensors
■ Pressure and
damage resistant
membrane –
up to 12 bar
■ Compatible
with existing
DO transmitters
■ 4 ppb to 300%
saturation range

TruDO Optical Dissolved Oxygen Sensors

TruDO® Optical probes solve the problems associated with traditional DO sensors i.e., midrun sensor failure, polarization, leaking electrolyte, broken or poisoned cathodes. The TruDO Optical sensor has one replaceable part, the sensor cap. Unlike a traditional DO sensor, the TruDO sensor cap needs to be replaced very infrequently (every 6 months or so). In side by side tests the sensor tracks traditional DO probes without the need for membrane replacement after every run or two. In addition the probe can be kept in the reactor without maintenance before CIP and left dry without any adverse effects.

Plug and Play
TruDO Optical 12mm diameter sensors are designed for plug and play replacement of existing polarographic DO sensors.

T82/D4 Cables
Connect your existing DO cable to the TruDO Optical power adapter, attach the TruDO Optical sensor and plug in the power supply. You are ready to go! Follow your normal SOP for calibration and operation.

VP Cables
Connect your existing DO cable to the TruDO Optical sensor, then attach the TruDO power supply to the two unused wires on the VP 6.0 cable to power the sensor, plug in the power supply and you are ready to go!

New DO Loops
No transmitter is required! While the TruDO Optical sensor is designed as a plug and play replacement for traditional polaragraphic DO sensors it can also be used without a transmitter. The reason is that the transmitter is already built into the sensor saving you the cost of a transmitter for every new installation.

4-20 mA Output
For customers that want a 4 to 20 mA dissolved oxygen signal output, the TruDO Optical sensor provides this when connected to a VP cable and the TruDO 4-20 mA output adapter.

 

TruDO is a trademark of Finesse Solutions, LLC. © Finesse Solutions, LLC, 2009.

Clone of TruDO Optical Dissolved Oxygen Sensors

TruTorr

Features

■ CIP, SIP autoclave compatible optical dissolved oxygen sensor
■ Equal or better performance than traditional DO sensors
■ Pressure and damage resistant membrane - up to 12 bar
■ Compatible with existing DO transmitters
■ 4 ppb to 300% saturation range

TruTorr® Single Use Headspace Pressure Sensor

The TruTorr pressure sensing system is a single-use solution for measuring headspace pressure in a single-use container, in order to prevent damage from overpressure. The product consists of a disposable pressure sensor, a cable, and a transmitter that is seamlessly integrated into Finesse TruViu hardware (RDPD, PLSSmini or PLSS).

The single-use sensor not only compensates for temperature, but is self-calibrated for immediate use, based on integrated, gamma radiation- resistant memory chip technology.

 

Environmental Specifications
Parameter Units Min Typ Max
Operating Temperature °C 15 45
Operating Pressure Psi (bar) 1(14.7) 6 (50)
Storage Temperature °C -20 22 70
Storage Relative Humidity (no-condesning) % 0 60 90
Altitude feet 10,000
Shock tolerance
(non-operating)		 shipping JIS Z
):202:1994
Vibrations (50 to 500 Hz sinusoidal 0.25 octave/min) G 3
Performance Specifications
Min Max
Sample Period (sec) 1 120
Measuring Range
(psi, gage)		 0 5.8
Resolution at 25°C (psi) 0.01
Limit of Detection (psi) 0.01
Accuracy at 20 °C ±10% of reading
Response Time (sec) ≤ 1
90% response (sec) 1
Drift in 60 days TBD
Calibration Pre-calibrated
Cross Sensitivity None
-- to be continued
CAB-VP8-10, 10 ft/3m
CAB-VP-15, 15ft/5m
ReplacementCap
DOS-OPT-CAP
Polarizers
None required
Power Adapter for D4/T82 Cables
DOS-OPT-PWR-ADT
Like for Like 12mm
Replaces Broadley-James Model D140/D145
Replaces Mettler-Toledo/Ingold Model InPro 6800

TruDO is a registered trademark of Finesse Solutions, LLC.

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