DDPS pH Probes.indd - De Dietrich Process Systems

pH PROBES
GLASS-LINED STEEL OR ALLOY
Features and Advantages
Fast: 95% of the reading is taken within two seconds; Final
reading takes less than 30 seconds
Accurate: Better than ±0.1 pH in continuous measurement
over the entire pH range
Easy Maintenance: Remove/replace electrode from outside
the reactor without entering the vessel (the liquid level in the
vessel must be below the bottom of the probe and the vessel
must be vented to the atmosphere)
Sturdy: Engineered for agitated reactors and tanks
Specifications
pH Range: Measures from 0 to 14 pH
Pressure Range: 150 psig to full vacuum
Temperature Range: 32°F to 284°F (0°C to 140°C)
Glass Lining: De Dietrich Universal 3009U white glass; highly
acid, alkali, impact, thermal shock and abrasion resistant
Spark Test: 20,000 volts during fabrication, 6,000 volts thereafter
Electrical Resistance: Sensor - 300 megohms at 77°F (25°C)
Diaphragm - <20,000 megohms
Slope: 54 – 60 mV/pH at 77°F (25°C)
Zero Point: pH 7, 0 mV ± 50 mV
Options
•
•
Temperature Compensation: 3010 ohm standard RTD, with an
optional 100 ohm RTD (for use with other transmitters)
Electrode Material: Combined, solid state, silver/silver chloride
non-flowing electrode with Halar® sheathing and Kalrez® Orings provide direct measurement with no time delay.
Zero Leakage: A zero ml/hr KCl leakage rate is obtained by
supplying an electrode with a wooden core, impregnated with
KCl. Ions go directly from the wood through a porous PTFE
barrier, then across a pH sensitive glass tip.
•
•
Power Supply - Model MTL 2441B: Repeater Power Supply
(4/20 mA) with intrinsic safety barrier for Class 1, Division
1, Group A, B, C and D hazardous areas.
Transmitter - Model TB515 10110: TBI pH Analyzer/Transmitter, two-wire, 24 VDC transmitter with integral LCD
for pH and loop current readings. NEMA 4X enclosure,
separate loop current and electrode adjustments, 2” pipe
mounting bracket and stainless steel tag. FM approved
intrinsically safe for Class 1, Division 1, Group A, B, C and
D when used with approved barriers.
Electrode Blank - Blank PTFE electrode plug to allow reactor/tank operation with the absence of an electrode.
Probe Material - Standard probes are constructed of De
Dietrich glass-lined steel, which can be substituted by
common alloys.
De
Dietrich Process Systems, Inc.
De Dietrich Process Systems GmbH
244
Sheffield Street 36
Hattenbergstraße
Mountainside, NJ 07092
D-55122 Mainz
P 908.317.2585
www.ddpsinc.com
[email protected]
Tel.: +49
(0) 61 31/97 04-0
F 908.889.4960
[email protected]
www.qvf.com
Fax: +49 (0) 61 31/97 04-500
D016
5/2011
Copyright © De Dietrich Process Systems, Inc. All rights reserved. The information contained in this brochure is believed to be reliable general guidelines for consideration of the products and services described herein. The information is general in nature
and should not be considered applicable to any specific process or application. De Dietich Process Systems, Inc. expressly disclaims any warranty, expressed or implied of fitness for any specific purpose in connection with the information contained herein.