Waters 2414 Refractive Index Detector

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An icon in the front panel display and remote interface indicates when thedetector is engaged in purge mode.A purge can be requested from the front panel, rear panel, or remote interface.Under control by a data system or controller, two distinct commands enablethe Purge function with one command, and the end of purge with a separatecommand. Pressing the front panel’s Purge key toggles the purge state unlessoverridden by the purge input signal.A data system can also request a purge for a duration of time.Recycle modeYou engage the recycle mode via the detector’s front panel, or remote controlinterface like a data system or controller. A programmatically controlledrecycle (solenoid) valve diverts the outlet fluid to one of two ports. An iconappearing in the front panel display indicates when the unit is in recyclemode. The recycle valve ports and their corresponding outlet lines are labelledaccordingly.A recycle external event input can be triggered to put the 2414 detector intorecycle mode. The input puts the detector in recycle mode on each transition,according to how the event is configured. You can also disable the input.Fluid path componentsThe fluid path of the 2414 detector includes these components:• Countercurrent heat exchanger• End-cap heat exchanger• Flow cell, with sample and reference sides• Solenoid valve• Pressure relief valve• Recycle valve• Inlet and outlet tubing1-18 Introduction
2414 external plumbing and valvesInlet lineSolenoidpurge valveRecyclevalvePressure reliefvalveTP01901Countercurrent heat exchangerThe low-dispersion, countercurrent heat exchanger minimizes temperaturefluctuations in the sample stream. The device’s sample inlet and outlet linesare coaxial, which facilitates heat exchange between incoming and outgoingfluids.Flow cellThe flow cell consists of two fused, quartz, hollow prisms. Each cell has aninlet and outlet. One of the prisms constitutes the cell’s sample side throughwhich a constant flow of eluent passes during analysis.The other prism constitutes the cell’s reference side. It is filled with freshsolvent when you purge the detector during equilibration. When you switchfrom purge to normal operation, the solenoid valve opens, and the pressurerelief valve shuts, stopping the flow of solvent through the reference prism butleaving the cell filled with solvent.Detector description 1-19
Page 1: Waters 2414Refractive IndexDetector
Page 4: Customer commentsWaters’ Technica
Page 7: Operating this instrumentWhen opera
Page 10 and 11: Electronics........................
Page 12 and 13: Operating in 410 (standalone) mode
Page 14 and 15: xivTable of Contents
Page 16 and 17: Use of refractive index detectorsTh
Page 18 and 19: Effect of density on RIWeight perce
Page 20 and 21: θ 2 = Angle of refractionn 1 = RI
Page 22 and 23: External angle of deflectionThe amo
Page 24 and 25: By detecting how far the image shif
Page 26 and 27: • Single channel/additional chann
Page 28 and 29: • Enable keypad - You can program
Page 30 and 31: Flow path during analysisFlow cellE
Page 34 and 35: Solenoid valveDuring normal operati
Page 36 and 37: Optics bench assembly light pathMir
Page 38 and 39: PolarityThe default time constant o
Page 40 and 41: 1-26 Introduction
Page 42 and 43: DimensionsThe following figure show
Page 44 and 45: Rear panelInputs andoutputsGroundte
Page 46 and 47: Tubing connectionsInlet lineSolenoi
Page 48 and 49: 2. Connect the tubing to the white
Page 50 and 51: Component connection overviewThe fo
Page 52 and 53: Ethernet signal cable connectionsYo
Page 54 and 55: HPLC system, with the detector unde
Page 56 and 57: • The detector automatically chan
Page 58 and 59: Connecting to a manual injectorIf y
Page 60 and 61: Waters 2414 analog-out/event-in con
Page 62 and 63: Generating a chart mark on injectin
Page 64 and 65: Connecting to the Waters 746 Data M
Page 66 and 67: Connecting to a data control system
Page 68 and 69: Each time the detector receives a s
Page 70 and 71: Inject start connections to a manua
Page 72 and 73: 3-24 Connecting Signal Cables
Page 74 and 75: Common solvent problemsThe 2414 det
Page 76 and 77: intend to use for your analysis has
Page 78 and 79: is endothermic, the solubility incr
Page 80 and 81: 4-8 Preparing Solvents
Page 82 and 83:
Powering-onInitializingBefore you p
Page 84 and 85:
• Navigation to specific screens
Page 86 and 87:
Keypad description (Continued)KeyUn
Page 88 and 89:
Keypad description (Continued)KeyUn
Page 90 and 91:
• Press the corresponding number
Page 92 and 93:
Mode, function, and message screen
Page 94 and 95:
Secondary functions of the RIU mode
Page 96 and 97:
• Voltage offset - Adjusts the ch
Page 98 and 99:
Note: When the detector is operatin
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10. Press HOME to return to the RIU
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2. From the Method choice list, pre
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• If you press Enter, the followi
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Home screen 410 mode% Full scalePol
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• Voltage offset• Enable/disabl
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• Voltage offset - This parameter
Page 112 and 113:
Setting the IEEE addressIEEE addres
Page 114 and 115:
• Rectangular wave (in seconds) -
Page 116 and 117:
Effects of attenuation/sensitivity
Page 118 and 119:
When the Column Heater Module Tempe
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2. Replace the 100% water mobile ph
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Detector maintenance involves clean
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9. Switch the pump or solvent deliv
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6-6 Maintenance Procedures
Page 128 and 129:
Error messagesThe detector can disp
Page 130 and 131:
ubbles before you recycle power. If
Page 132 and 133:
Error messages preventing operation
Page 134 and 135:
The user-selectable sticky diagnost
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Specifying fixed voltage outputFrom
Page 138 and 139:
Using the Other diagnostic function
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TroubleshootingThis section provide
Page 142 and 143:
Chromatography troubleshootingThis
Page 144 and 145:
Abnormal baseline troubleshooting (
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Abnormal baseline troubleshooting (
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Use the following table to troubles
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Use the following table to troubles
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Incorrect results troubleshooting (
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Warning symbolsWarning symbols aler
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Chemical hazard warningThis warning
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Warning: Use caution when working w
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警告 : 当有压力的情
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Warning: To protect against fire, r
Page 164 and 165:
Handling symbolsThese handling symb
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Operational specifications (Continu
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B-4 Specifications
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connections, power. See powerconnec
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integratoroutput 5-35signal 3-18Kke
Page 174 and 175:
shift icon 5-11, 5-26signal connect
Page 176:
Index-8
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Waters 2414 Refractive Index Detector

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