Subscribe to Our Youtube Channel
Related Manuals for JUMO 201040
Summary of Contents for JUMO 201040
- Page 1 Ammonia-sensitive sensor for measuring ammonia in aqueous solutions Type 201040 B 201040.0 Operating instructions V1.00/EN/00451666...
-
Page 3: Table Of Contents
Electrical connection ............12 Startup ................12 Taking the temperature dependence of the ammonia sensor into account when using it in combination with JUMO dTRANS pH 02 or JUMO AQUIS 500 pH ..............13 Calibrating the ammonia sensor ............14 Maintenance ............... -
Page 4: Notes
For technical questions Service hotline: Phone: +49 661 6003-300 or +49 661 6003-653 Fax: +49 661 6003-881300 or +49 661 6003-881653 E-mail: service@jumo.net More information can be found in JUMO white paper 631, "Information on measuring ammonia in water". -
Page 5: Description
(leakage). To do this, tubes and system parts filled with water are monitored to determine whether ammonia (NH ) has penetrated (dissolved in the water). The ammonia-sensitive sensor type 201040 described here is suitable for this purpose. Attention: ammonia-sensitive... -
Page 6: Coolant Monitoring
2.4 Coolant monitoring The following components are required for coolant monitoring: - Ammonia-sensitive sensor, type 201040/65-22-120/000, part no. 00440655 (JUMO type sheet 201040) Ammonia-sensitive sensor for low-temperature applications, type 201040/65-22-120/854, part no. 00440655 (JUMO type sheet 201040) - PP manual quick-change fitting, type 202820/107-66/87, part no. -
Page 7: Technical Data
Low-noise coaxial cable 10 m long, part no. 00082649 Note: Use of an impedance converter (type 202995/00-91, part no. 00300455, JUMO type sheet 202995) is recommended at low temperatures as the electrical resistance of the ammonia sensor's glass membrane increases sharply. -
Page 8: Operating Range
4 Operating range Only NH ions (ammonium) are present The ratio of NH ions (ammonium) and (ammonia) is 1:1 Only NH (ammonia) is present Note: The presence of ammonia in the process medium is heavily dependent on its pH value (see above diagram). -
Page 9: Output Signal
4.1 Output signal The electrochemical process in the thin electrolyte layer upstream from the glass membrane proceeds as per the following equation: NH + H O + OH Hydrogen ions are taken out of the electrolyte, moving the pH value up to higher values. -
Page 10: Design
4.2 Design (1) Reference system lead (Ag/AgCl) (2) Electrolyte (3) Internal buffer (4) Internal lead (Ag/AgCl) (5) Glass membrane (hydrogen ion- selective) with a thin electrolyte layer (6) Gas-permeable PTFE film Reference system lead (1) is immersed in the electrolyte and provides a fixed reference potential for measurement as an Ag/AgCl electrode, with the chloride ions contained in the electrolyte. -
Page 11: Mounting
5 Mounting 5.1 Dimensions Tr 12.9 x P1.5 Screw-on head Hose connection (silicone) Pg13.5 Electrode shaft (PPO) O-ring (FPM) Membrane cap (stainless steel 1.4571) Gas-permeable PTFE film ø12 ±0.5 Note: The sensor may only be operated in the vertical position! The process medium must be free of particles and dirt! It may be necessary for the customer to provide a... -
Page 12: Electrical Connection
6 Electrical connection A high-quality shielded cable is required to connect the ammonia sensor to a transmitter/controller, see Section 2.4 "Coolant monitoring", page 6. Use of an impedance converter is recommended at low temperatures, as the electrical resistance of the gas-sensitive sensor's glass membrane increases sharply, Section 2.4 "Coolant monitoring", page 6. -
Page 13: Taking The Temperature Dependence Of The Ammonia Sensor Into Account When Using It In Combination With Jumo Dtrans Ph 02 Or Jumo Aquis 500 Ph
7.1 Taking the temperature dependence of the ammonia sensor into account when using it in combination with JUMO dTRANS pH 02 or JUMO AQUIS 500 pH The output signal of the gas-sensitive sensor is temperature- dependent, so the temperature of the sample solution must be known in order to measure correctly. -
Page 14: Calibrating The Ammonia Sensor
(caused by deposits such as lime, or by wear). This changes the output signal of the sensor. The software of JUMO dTRANS pH 02 and JUMO AQUIS 500 pH transmitters is specifically geared to coolant monitoring. They use a typical, concentration-dependent characteristic line. - Page 15 Note: With manual temperature compensation, the fixed temperature of the medium assigned by the user is shown on the JUMO transmitter.
-
Page 16: Maintenance
8 Maintenance Note: The flow rate of the medium through the quick-change fitting should be checked regularly! The nature of the process medium must be taken into consideration when determining the check interval. The typical flow rate is a few milliliters per day and depends on the parameters of the coolant (pressure, temperature, viscosity, etc.). -
Page 17: Refilling/Replacing The Electrolyte
8.1 Refilling/replacing the electrolyte Hold the sensor (5) with its electrical connection (8) pointing vertically downward. At the level of the vent opening (7), slide the vent wedge (6) under the silicone tubing. Remove the old membrane cap (2). Remove the vent wedge (6). In the gap (4), top up the electrolyte to the brim. - Page 18 Attention: The electrolyte must not get into the plug-type head (1) of the sensor! This causes contact problems. Hold the sensor as shown in the above diagram. At the level of the vent opening (2), slide the vent wedge (3) under the silicone tubing.
-
Page 19: Storing The Sensor In The Storage Container
8.2 Storing the sensor in the storage container Attention: It is essential to keep to the procedure described below, as otherwise pressure buildup will destroy the sensor membrane! The sensor must not be stored dry! Slide the union nut (2) onto the sensor shaft. Slide the O-ring of the union nut (2) onto the sensor shaft. -
Page 20: Accessories
9 Accessories 9.1 Quick-change fitting for ammonia sensor Pg13.5 ø60 ø35 G1 1/4 A Turn the handwheel to close (maintenance) Turn the handwheel to open (operation) Quick-change fitting for ammonia sensor (PP) Part no. 00379538 Discharge: G1/8 A (POM) hose connection Handwheel... - Page 21 Attention: The installation position of the fitting is vertical (as shown in the drawing)! The sensor may only be removed when the fitting is closed! Do not close the discharge (4)! Optimum operating pressure: 2 to 3 bar. Maximum operating pressure: 6 bar. Screw the ammonia sensor into the fitting and tighten to 3 Nm.
-
Page 22: Replacing The Ptfe Washer In The Quick-Change Fitting
9.1.1 Replacing the PTFE washer in the quick-change fitting Hexagon socket screws M4 Electrode fixture O-ring PTFE washer Cap (stainless steel, wrench size 16, max 3.5 Nm) Handwheel Turning the handwheel (6) left (counter-clockwise) opens the fitting and moves the sensor out of the process medium. Unscrew the gas-sensitive ammonia sensor from the fitting. - Page 23 Place the O-ring (3) in its groove before mounting. Screw the cap (5) onto the electrode fixture (2) (max. 3.5 Nm). Insert the electrode fixture (2) in the fitting. Tighten the hexagon socket screws (1). Screw the gas-sensitive ammonia sensor into the fitting (about 3 Nm).
-
Page 24: Maintenance Kits
9.2 Maintenance kits Designation Part no. Maintenance kit for ammonia-sensitive sensor 00449637 (standard version) Maintenance kit for ammonia-sensitive sensor 00477746 (extra code 854, low-temperature applications) PTFE washers for manual quick-change fitting 00583477 (standard, white, 3 washers) PTFE washers for manual quick-change fitting 00583479 (increased flow rate, black, 3 washers) 10 Possible errors... - Page 28 JUMO GmbH & Co. KG JUMO Instrument Co. Ltd. JUMO Process Control, Inc. Street address: JUMO House 6733 Myers Road Moritz-Juchheim-Straße 1 Temple Bank, Riverway East Syracuse, NY 13057, USA 36039 Fulda, Germany Harlow - Essex CM20 2DY, UK Phone:...
Need help?
Do you have a question about the 201040 and is the answer not in the manual?
Questions and answers