ph / ORP Measurement mypro CPM 431

Transcription

1 Technical Information TI 173C/24/ae ph / ORP Measurement mypro CPM 431 Two-wire transmitter for ph and ORP with HART communication for use in hazardous or non-hazardous areas Areas of application The analysis measuring transmitter MyPro CPM 431 is intended for highly reliable ph or ORP measurement in all areas of process control and engineering. Compact design and versatile mounting options make MyPro a perfect match for any industrial environment. Major areas of application include: Hazardous areas with FM approval Chemical and petrochemical industries Pharmaceutical industry Power plants Water conditioning Waste water treatment Benefits at a glance High reliability is guaranteed by: comprehensive self-monitoring functions Sensor Check System (SCS) for ph and ORP Versatility, switchable between ph and ORP Compact design, smallest intelligent analysis transmitter available Ultrasimple installation and versatile mounting, display and housing can be rotated Convenient operation via keypad or hand-held HART terminal Keypad is protected underneath housing cover Two-level locking function protects configuration and calibration data Auto buffer recognition Single push button calibration The Power of Know How

2 Measuring System With the MyPro CPM 431 you have many choices of ph / ORP electrodes. For accuate selection of the correct electrode type, contact Endress+Hauser. The MyPro can work with either: Compact electrodes or: Replaceable electrodes with high quality electrode holders and detachable electrode cables Compact Electrodes with Fixed Cables CPF 81/82 ph/orp CPF 91/92 ph/orp Replaceable Electrodes Detachable Cable CPK 9 MyPro CPM 431 System Examples CPS 11/12 ph/orp CPS 41 ph The CPS 11/12 electrode is designed for universal usage, easy to clean and soilresistant due to PTFE junction. For pressures of up to 90 psi and conductivity > 50 µs/cm. The CPS 41 electrode is designed with a ceramic junction and liquid KCI electrolyte, usable with counter pressures of up to 116 psi. Flow Through Immersion Hot Tap Insertion CPA 240 CPA 140 CPA 450 CPA 441 Quality Electrode Holders Materials: Materials: Materials: Materials: PVDF PVDF SS * PVC SS SS * SS 2

3 General Information Self Diagnosis The MyPro CPM 431 continually checks the operational reliability of the measuring point. It can identify 28 possible problem causes in 4 different error classes: 1. Failure 2. Service required 3. Malfunction 4. Warning Errors are signalled in the field via the display and simultaneously via the HART interface, and optionally via an error current signal (22 ma). Electrode Monitoring SCS The Sensor Check System (SCS) monitors the ph and the reference electrodes for inaccurate measurement and total failure. The SCS detects: Breakage of electrode glass Detects shorts in ph measuring circuit and bridges due to moisture or fouling at terminals Fouling or blocking of reference electrode Two monitoring methods are employed: ph electrode resistance monitoring (alarm in case the impedance drops below a minimum threshhold) Monitoring of reference electrode impedance (an alarm is issued when the defined threshold is exceeded Electrode Monitoring with SCS 22 ma Mounting Options " 1.5" to 8" 2 4 ➀ Mounting on 2 pipe. Instrument can be rotated in different axis (LCD in 90 steps) 3 ➁ Wall Mounting ➂ Installation with flange mounting bracket ➃ Strap-on mounting for pipe sizes from 1.5 to 8 3

4 Dimensions 4.09" (104) 6.29" (160) 5.39" (137) 8.93" (277) 4.64" (118) 2.08" (53) 10.0" (254) 3.81" (97) 6.97" (177) Wall mounting Flange mounting 0.23" (6) dia. 3.30" (84) 2.08" (53) 3.03" 3.22" (77) 0.31" (82) (8) 2.37" (60.3) dia. 3.03" (77) 1.18" to 7.37" (30 to 200) dia. 6.5" (165) 4.02" (102) 2 pipe mounting 1.5 to 8 pipe strap mounting Electrode Connection + Test ma 1 2 Electrode Connection Connection Area for Electrode Cable 4

5 Electrical Connections ph/mv 4 to 20 ma gn wt ye Coax bk br + bk CPK 9 Wiring diagram for symmetrical highimpedance measurement with solution ground pin (PMC) Pt 100 ph Ref. Solution ground pin PM / PMC Test 4 to 20 ma 12 to 30VDC Terminal 3 not used Signal Output: Current, 4 to 20 ma Input Power: 12 to 30VDC 4 to 20 ma Test to 20 ma Power supply and signal output wiring connection Warning: Observe National Electrical Codes for hazardous areas. Display The high-contrast liquid crystal display locks in several angles in order to guarantee optimum readability in different mounting positions. Display 5

6 HARTHandterminal 1 Offline 2 Online 3 Transfer 4 Frequenzg erät 5 Extras Operation Menu-guided Operation The MyPro functions are classified in two operating levels and can be operated via four push buttons Operating Level 1 + Control of active settings (secondary parameters) - Error diagnosis (diagnostic parameters) F Current output settings (parameter settings) C Calibration Operating Level 2 This level comprises all other settings, e.g. ph and ORP measurement. The keyboard is located underneath the protective cover to prevent unintentional actuation and to avoid the ingress of dirt or moisture. Operation via HART Interface In addition to field operation, the instrument can be operated via its HART interface with a hand-held HART terminal No Unauthorized Access Configuration and calibration data are protected against unauthorized access using a two-step access code. Operation of Mypro CPM 431 via keys on instrument hand-held HART terminal Commuwin II software via HART Keypad on instrument + C F F > 3 s Operating Level 1 daily work and diagnosis Operating Level 2 configuration and diagnosis Hand-held HART terminal I O Plain text menu guidance Commuwin II via HART clear overall view in the form of a matrix graphical user interface data entry / recorder function upload / download archiving off-line programming Technical Data ph Measurement Measuring Range (MR) Measured Value Resolution Deviation of Indication * Reproducibility * Zero Shift Range Automatic Temperature Compensation Range Reference Temperature Slope Adaptation ph Signal Input ph Signal Output to ph 0.01 ph Maximum 0.2% MR Maximum 0.1% MR Glass electrode, 7.0: to ph - 4 to F (- 20 to C) 77 F (25 C) Glass electrode 7.0: 45 to 65 mv/ph Input resistance (nominal operating conditions), > 1 x Ω Input current (nominal operating conditions), < 1.6 x A Current range, 4 to 20 ma Measurement deviation, maximum 0.1% of upper current range value * Load (depending on operating voltage and load), maximum 600Ω Output range, adjustable 2.0 to 18 ph (error message if < 2) * According to DIN IEC 746 part 1, nominal operating conditions. 6

7 Technical Data (con t) ORP Measurement Temperature Measurement Measuring Range (MR) Measured Value Resolution Deviation of Indication * Reproducibility * Electrode Offset ORP Signal Input ORP Signal Output Temperature Sensor Measuring Range Measured Value Resolution Deviation of Indication * Reproducibility * Temperature Offset to mv 1 mv Maximum 0.2% of MR Maximum 0.1% of MR ± 200 mv Input resistance (nominal operating conditions), > 1 x Ω Input current (nominal operating conditions), < 1.6 x A Current range, 4 to 20 ma Measurement deviation, maximum 0.1% of upper current range value * Maximum 600Ω Output range, adjustable 200 mv to 3000 mv Pt 100 (3-wire connection) - 4 to F (- 20 to C) 32 F (0.1 C) 33 F (1 C) Maximum 0.1% of MR Pt 100 calibration, ± 68 F (20 C) Electrical Data General Data Hazardous Area Version Input Power + 12 to + 30 VDC, to + 30 VDC with HART Power Consumption Maximum 700 mw Signal Output 4 to 20 ma, galvanically separated from sensor circuit Error Current Signal Output 22 ma ± 0.5 ma HART Transfer: Load 230 to 1100Ω HART Transfer: Signal Output 0.8 to 1.2 ma (peak to peak) Terminals Maximum 13 AWG, 8 AWG ground Measured Value Display Liquid crystal display Electromagnetic Compatibility (EMC) Emmited interference according to EN : 1992, immunity to interference acc. to EN : 1995 Ambient Temperature Nominal operating conditions, 14 to 131 F (-10 to + 55 C) Relative Humidity Nominal operating conditions, 10 to 95% noncondensing Ambient Temperature Limit operating conditions, -4 to F (- 20 to + 60 C), hazardous areas, - 4 to +131 F (-20 to + 55 C) Storage and Transport Temperature - 13 to F (- 25 to + 80 C) Maximum Cable Length 164 feet (50 m) without SCS, 65 feet (20 m) with SCS * According to DIN IEC 746 part 1, nominal operating conditions. Intrinsically safe power supply and signal cirucit, FM IS, NI: Class I, II, III; Division 1, 2; Groups A - G Maximum Input Voltage U i 30 V Maximum Input Current I i 100 ma Maximum Input Power P i 750 mw Maximum Internal Inductance L i 200 µh Maximum Internal Capacitance C i Negligible;, to ground = 5.3 nf Intrinsically safe sensor cirucit, FM IS, NI: Class I, II, III; Divisions 1, 2; Groups A-G Maximum Output Voltage U o ± 5.4 V (10.8 V) Maximum Output Current I o 320 ma Maximum Output Power P o 200 mw Maximum External Inductance L o 100 µh Maximum External Capacitance C o 100 nf Mechanical Data Dimensions Refer to Page 4 Weight 2.76 lbs (1.25 kg) Protection Type NEMA 4X Housing Material GD-AlSi 10 Mg, plastic-coated 7

8 Ordering Information Mypro CPM 431 Transmitter for ph / ORP CPM Certificate Type A General purpose, non-hazardous O FM approved IS, NI; Class I, II, III; Division 1, 2; Groups A-G S CSA, IS, NI; Class I, II, III; Division 1, 2; Groups A-G 2 Conduit Entries for Power Supply 1 PG /2 NPT 8 Profibus-PA M12 plug 3 Electronics / Communications / Display A 4 to 20 ma / HART / without display B 4 to 20 ma / HART / LCD C Profibus-PA without display D Profibus-PA with LCD 4 Accessories 1 No accessories 2 Wall and 2 pipe mounting 3 Wall and 1.5 to 8 pipe mounting 4 Flange mounting bracket 5 Preset Measuring Parameter P ph, measuring range ph - 2 to + 16 R ORP, measuring range ± 1500 mv 6 Cable / Sensor Connection A Cable not included, for CPF 81 / 82 / 91 / 92 B With 3 foot (1 m) cable, GSA connector C With 3 foot (1 m) cable, TSA connector D With 6 foot (2 m) cable, GSA connector (without Pt 100) for CPS 12 E With 6 foot (2 m) cable, TSA connector F With 6 foot (2 m) cable, TOP 68 ESA / HDA connector G With 3 foot (1 m) cable, TOP 68 ESA / HDA connector K With Y-cable gland, cable not included Accessories Supplementary Documentaion Solution Description Part Number ph buffer solution, 4.0 ph 30 oz (1000 ml) CPY2-1 ph buffer solution, 7.0 ph 30 oz (1000 ml) CPY2-3 ph buffer solution, 9.2 ph 30 oz (1000 ml) CPY2-5 ORP buffer solution, +220 mv 3 oz (100 ml) CPY3-0 Compact Electrodes CPF 81 / 82 (ph / ORP) Replaceable Electrodes CPS 11 (ph), CPS 12 (ORP) CPS 42 (ph) Quality Electrode Holders CPA 140, immersion holder for CPS 11 / 12 / 41 CPA 240, flow through holder for CPS 11 / 12 / 41 CPA 442, insertion holder for CPS 11 / 12 CPA 441, insertion holder for CPS 41 CPA 450, hot tap insertion holder for CPS 11 / 12 For application and selection assistance, in the U.S. call 888-ENDRESS For total support of your installed base, 24 hours a day, in the U.S. call Visit us on our web site, United States Canada Mexico Endress+Hauser, Inc Endress Place Greenwood, IN Phone: (317) ENDRESS FAX: (317) Endress+Hauser Canada Ltd Graham s Lane Unit 1, Burlington ON, L7S 1W3 Phone: (905) FAX: (905) Endress+Hauser Paseo del Pedregal No. 610 Col. Jardines del Pedregal 01900, Mexico D.F. Mexico Phone: (525) FAX: (525) Endress+Hauser The Power of Know How TI 173C/24/ae/ Endress+Hauser, Inc.