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Technical Information
Liquiline M OM42
Two-wire transmitter for Ex and non-Ex areas
Analog sensors: pH/ORP / Conductivity / Concentration / Resistivity
Digital sensors: pH/ORP / Oxygen / Conductivity
Application
Liquiline M OM42 is a modular two-wire transmitter for all
areas of process engineering.
andDepending on the ordered version, Liquiline has one or two
analog current outputs or it can be connected to field buses as
per FOUNDATION Fieldbus, PROFIBUS PA and Hart protocol
The extremely robust, corrosion-resistant plastic version and
the hygienic stainless steel version are designed for the
following applications:
• Chemical processes
• Pharmaceuticals industry
• Foodstuff technology
• Applications in hazardous locations
TIIA3C/01/en
Your benefits
• Cost-saving:
– Simple commissioning with Quick Setup
Navigator (multifunction button)
– Thanks to Memosens technology, a calibration in
the plant is not required.
– Predictive maintenance system detects when a
sensor has to be cleaned, calibrated or replaced
– Less storage thanks to modular design
• Safe:
– Active display of cable interruption with Memosens
Version
– User-guided commissioning, graphic display and
plain text guidance
– Approvals: ATEX, FM, CSA, NEPSI
– Code-protected commissioning and calibration
• Industry solutions:
– Modular concept: sensor module replaceable
– Asset management (Fieldcare, W@M)
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Related Manuals for Endress+Hauser Liquiline M OM42
Summary of Contents for Endress+Hauser Liquiline M OM42
- Page 1 Analog sensors: pH/ORP / Conductivity / Concentration / Resistivity Digital sensors: pH/ORP / Oxygen / Conductivity Application Your benefits Liquiline M OM42 is a modular two-wire transmitter for all • Cost-saving: areas of process engineering. – Simple commissioning with Quick Setup...
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Page 2: Table Of Contents
Liquiline M OM42 Table of contents General features ......3 Modular design . - Page 3 Liquiline M OM42 Mechanical construction ..... . . 29 Dimensions ........29 Weight .
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Page 4: General Features
Liquiline M OM42 General features Modular design Inside Liquiline (version with sensor module, without wiring) CPU and sensor module Quick setup To the first measuring value within 1 minute After setting up the few parameters in the Quick Setup menu, the measuring point is ready to measure. -
Page 5: Memosens
Liquiline M OM42 The measuring point is safer with Memosens: Memosens • No-contact, inductive signal transmission, thus optimum galvanic separation • No galvanic corrosion • Completely water-tight • Automatic error message if data flow interrupted • Sensor calibration possible in laboratory •... -
Page 6: Safety
Liquiline M OM42 Software package "Basic" and also: Advanced Analog sensors Analog sensors Digital sensors – Medium compensation – Logbooks – Polarization voltage setting – Calibration timer – Data logbook – Medium compensation – Sensor statistics – Calibration with separate – Calibration stability settings – Logbooks installation factor – Calibration timer – Data logbook (inductive measurement only) – Sensor statistics Digital sensors – Polarization detection – Logbooks features like analog sensors plus: (conductive measurement only) – Data logbook – Operating hours counter – Temperature compensation via – Operating hours counter – Sterilizations counter user table – Sterilizations counter ... -
Page 7: Special Features
Liquiline M OM42 Special features pH / ORP Suitable sensors Connection of all types of pH and ORP sensors: • Analog and digital glass electrodes • Analog and digital ISFET sensors • Analog and digital ORP sensors • Pfaudler electrodes •... -
Page 8: Conductivity
Liquiline M OM42 Conductivity Suitable sensors Connection of all types of conductivity sensors: • Analog and digital conductive sensors: – Two-electrode sensors – Four-electrode sensors • Analog and digital inductive sensors Polarization monitoring Polarization effects in the boundary layer between the sensor and the solution to be measured limit themeasuring range of conductive conductivity sensors. -
Page 9: Measuring System
Liquiline M OM42 Measuring system pH / ORP (analog sensor) Conductivity, inductive Conductivity, conductive Memosens (digital sensor) • OM42‐P/R... measurement (analog) measurement (analog) • OM42‐K/M/N/O... • Measuring cable OPK9 • OM42‐I... • OM42‐C... • Measuring cable OYK10 • Assembly Cleanfit OPA471 • Assembly Dipfit OLA111 • Measuring cable OPK9 • (Assembly UnifitOPA442) • Sensor Orbisint OPS11 • Sensor Indumax OLS50 • Sensor CondumaxOLS16 • Sensor OPS11D (pH: glass)/ OPS471D (pH: ISFET)/ OOS21D/51D (oxygen) / OLS15D/16D/21D (conductivity, cond. meas.) Note! You can select from a wide variety of assemblies and sensors to set up your measuring point. You can find the corresponding information in the chapter "Accessories"... -
Page 10: Input
Liquiline M OM42 Input Binary input (Memosens): Measured variable • pH value pH/ORP, Oxygen, • Oxidation-reduction potential Conductivity • Oxygen • Conductivity (conductive sensors) • Resistivity • Temperature Measuring range –2 to 16 (glass electrodes) pH value 0 to 14 (ISFET sensors) ORP –1500 to +1500 mV 0.0 to 100.0 mg/l 0 to 1000 %SAT Dissolved oxygen ... -
Page 11: Analog Input: Ph / Orp
Liquiline M OM42 Analog input: pH / ORP Measuring range pH value –2 to 16 ORP –1500 to +1500 mV Temperature –25 to + 150 °C (–10 to 300 °F) Cable specification Without SCS 50 m (160 ft) max. cable length With SCS 20 m (65 ft) max. cable length Applicable temperature sensors • Pt100 • Pt1000 • NTC 30K Ex specification Intrinsically safe sensor circuit with type of protection: Ex ia IIC1) Power limited sensor circuit with type of protection: Ex nL IIC2) ... -
Page 12: Analog Input: Conductivity
Liquiline M OM42 Analog input: Conductivity Measured variable • Conductivity • Resistivity (conductive measurement only) • Concentration Conductivity, conductively measured Two‐electrode sensor 0.1 μS.k1)) to 20 mS.k Four‐electrode sensor 0.1 μS.k to 1.5 S.k Conductivity, inductively measured 1.7 μS.k2)) to 1 S.k Resistivity, conductively measured 10 MΩ/k to 50 Ω/k Concentration Concentration NaOH: 0 to 15% (0 to 100 °C / 32 to 212 °F) HNO3: 0 to 25% (0 to 80 °C / 32 to 180 °F) H2SO4: 0 to 30% (0 to 100 °C / 32 to 212°F) H3PO4: 0 to 15% (0 to 80 °C / 32 to 180 °F) HCl: 0 to 20% (0 to 65 °C / 32 to 150 °F) ... -
Page 13: Output
Liquiline M OM42 Ex specification, inductive sensors Intrinsically safe sensor circuit with type of protection: Ex ia IIC1) Power limited sensor circuit with type of protection: Ex nL IIC2) Max. output voltage Uo 10.08 V Max. output current Io 64 mA Max. external Po 128 mW 1) OM42-*G*********, OM42-*X*********, OM42-*Z********* 2) OM42-*V********* Output 1x 4 to 20 mA, potentially isolated against sensor circuit... -
Page 14: Ex Specification Profibus Pa And Foundation Fieldbus
Liquiline M OM42 Ex specification PROFIBUS PA and FOUNDATION Fieldbus Suitable for use as a field device in a FISCO system Max. input voltage Ui 17.5 V Max. input current Ii 380 mA Max. input Pi 5.32 W Max. internal inductivity Li < 10 μH Max. internal capacity Ci < 5 nF Wiring Housing grounding Plastic housing Caution! You must connect the "Fixing plate" to the foundation ground with a separate functional ground line (ε2.5 mm... -
Page 15: Supply And Signal Circuit
Liquiline M OM42 Supply and signal circuit 4 ... 20 mA Note! Connect the transmitter via a two-wire cable. The second current output is an option (see "Ordering information"). View in device (CPU module) Wiring diagram 4 ... 20 mA / Hart ®... - Page 16 Liquiline M OM42 "Hard grounding" • Place the cable shield on the "Fixing plate". • Connect the cable wires as per the assignment View in device (CPU module) Wiring diagram "Capacitive grounding" • Strip back the shield braiding, push the extension wire of the C module (pos. 1) onto the exposed shield andfasten the clip: •...
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Page 17: Supply Voltage
Liquiline M OM42 "Fieldbus connection socket" • Screw the fieldbus connection socket (accessories) into the housing bushing. • Trim the connection cores of the socket to approx. 15 cm (5.9 "). • Connect the cable cores as per the assignment. In doing so, you must place the cable shield (GN/YE) on the"Fixing plate". -
Page 18: Sensor Connection
Liquiline M OM42 Explanation of abbreviations in the following diagrams: Sensor connection Abbreviation Meaning pH Signal from pH membrane glass Ref Signal from reference electrode Src Source Drn Drain PM Potential matching U+ Digital sensor supply U– Com A Digital sensor communication Com B Temperature signal d.n.c. Do not Connect! Note! • Cable colors indicated as per IEC 757 (see CD-ROM). -
Page 19: Sensor Connection: Analog Ph / Orp Sensors
Liquiline M OM42 analog pH / ORP sensors View in device Wiring diagram Glass electrodes without PML (asymmetrical) View in device Wiring diagram ISFET sensors with PML (symmetrical) Endress+Hauser 19 ... - Page 20 Liquiline M OM42 View in device Wiring diagram ISFET sensors without PML (asymmetrical) View in device Wiring diagram Pfaudler electrodes With PM (symmetrical) With PM (symmetrical) Endress+Hauser 20 ...
- Page 21 Liquiline M OM42 Pfaudler electrode, absolute Pfaudler electrode, relative Type 03 / Type 04 Type 18 / Type 40 Wiring diagram Wiring diagram With PM (symmetrical) Without PM (asymmetrical) Pfaudler electrode, absolute Type 03 / Type 04 pH Reiner Single ...
- Page 22 Liquiline M OM42 electrodes (e.g. OPS64 glass or antimony) View in device Wiring diagram Glass electrode and ORP sensor for the pH measurement Note! For pH measurement, connect a pH combination electrode (e.g. OPS11 with sensor cable OPK9) and an ORP sensor (e.g.
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Page 23: Sensor Connection: Analog Conductivity Sensors
Liquiline M OM42 Sensor connection: Conductive sensors, two-electrode sensors analog conductivity sensors View in device Wiring diagram Conductive sensors, four-electrode sensors View in device Wiring diagram Endress+Hauser 23 ... - Page 24 Liquiline M OM42 Inductive sensors View in device Wiring diagram Endress+Hauser 24 ...
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Page 25: Performance Characteristics
Liquiline M OM42 Performance characteristics pH / ORP Reference temperature 25 °C (77 °F) (analog and digital sensors) Measured value resolution pH (glass electrodes and ISFET sensors) 0.01 pH ORP: 1 mV Temperature: 0.1 °C (0.1 °F) SCS glass electrodes: Glass: 100 kΩ Reference (analog sensors only): 100 Ω Leak current, ISFET sensors: 100 nA Maximum measured error ... -
Page 26: Oxygen (Digital Sensors)
Liquiline M OM42 Maximum measured error Conductivity, conductive measured Two‐electrode sensors 0.5 % from measured value ±0.01 μS.k Four‐electrode sensors 0.5 % from measured value ±0.01 μS.k 1)) 1.0 % from measured value ±0.01 μS.k 2)) 2.0 % from measured value ±0.01 μS.k 3)) Conductivity, inductive measured 0.5 % from measured value ±1.7 μS.k Resistivity, conductive measured 0.5 % from measured value ±0.01 μS.k 4)) (two‐electrode sensors) 1) from 0.1 μS k to 20 mS k (max. cable length 15 m (50 ft)) 2) from 10 μS k to 1000 mS k (max. -
Page 27: Installation
Liquiline M OM42 Installation Mounting plate Mounting plate Weather protection covers Stainless steel housing Weather protection cover OYY101 A Wall mounting B Pipe or round post mounting 1 Round post fixture (Accessories) Note! To fix the stainless steel weather protection cover OYY101 to vertical or horizontal pipes or round posts, youneed the additional round post fixture, -->... -
Page 28: Mounting Options
Liquiline M OM42 Plastic housing Weather protection cover Mounting options Wall mounting pipe or post mounting Panel mounting 1 LiquilineOM42 2, 3 Mounting plate (1x accessories) – Weather protection cover is optional 4 Pipe or post Wall mounting Pipe mounting Panel installation... -
Page 29: Installation In Ex Area
Liquiline M OM42 Installation in Ex area Installation in Ex area 1Sensor in Ex version 5Active barrier, e.g. Preline RN221 2Intrinsically safe sensor circuit EExia 6Signal line Hart/PROFIBUS/FF 3Transmitter 7Fieldcare via PROFIBUS/FF 4Supply and signal circuit EExib (4...20 mA) -
Page 30: Mechanical Construction
Liquiline M OM42 Mechanical construction Dimensions Plastic housing Stainless steel housing Weight Plastic housing Plastic housing 1.5 kg (3.3 lb) Stainless steel housing 2.1 kg (4.6 lb) Endress+Hauser 30 ... -
Page 31: Material
Liquiline M OM42 Material Plastic housing Housing: Polycarbonate Housing seals: Foamed silicone, EPDM Stainless steel housing Housing: Stainless steel 1.4301 (AISI 304) Housing seals: EPDM Human interface Operating elements Overview of operation 1 Display, current display: pH measuring mode 2 Navigator 3-6 Soft keys 7 Soft key function (depends on menu) ... -
Page 32: Ordering Information
Liquiline M OM42 Ordering information Product structure Endress+Hauser 32 ... -
Page 33: Scope Of Delivery
Liquiline M OM42 The scope of delivery comprises (depending on the device version): Scope of delivery • A transmitter acc. to the ordered version • A mounting plate including 4 screws • A sticker sheet (embedded in the housing, containing nameplates and terminal assignment stickers) •... -
Page 34: Weather Protection Cover
Liquiline M OM42 Panel installation kit for plastic housing for panel cutout 138x138 mm (5.43x5.43 inch) • 1 Panel installation seal • 2 Tensioning screws M6x150 mm • 4 Hexagonal nuts M6, DIN934 A2 • 4 Spring washers, A2 DIN127, Form B6 •... -
Page 35: Measuring Cables
Liquiline M OM42 OPK9 special measuring cable Measuring cables • For sensors with TOP68 plug-in head, for high-temperature and high-pressure applications, IP 68 • Ordering acc. to product structure, see Technical Information (TI118C/07/en) OPK12 special measuring cable • For pH/ORP glass electrodes and ISFET sensors with TOP68 plug-in head •... - Page 36 Liquiline M OM42 • Ordering acc. to product structure, see Technical Information (TI352C/07/en) TophitOPS491/OPS491D • ISFET sensor with open aperture for media with high dirt load; • Ordering acc. to product structure, see Technical Information (TI377C/07/en) Inductive sensors Indumax P OLS50 •...
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Page 37: Software Update And Upgrade
Liquiline M OM42 • Ordering acc. to product structure, see Technical Information (TI413C/07/en) Software update and upgrade OY42 DAT module • Function upgrade, update and memory module • Ordering as per order structure Version SystemDAT for software update and language catalog extension... - Page 38 Liquiline M OM42 Endress+Hauser Conducta Inc. 4123 East La Palma Avenue, Suite 200 Anaheim, CA 92807 USA Endress+Hauser 38 ...
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