Process Unit 73 LF - Knick

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Process Unit 73 LF Probe Rinsing You can only make use of the probe rinsing function if your Process Unit is equipped with option 352. Without this option, the menu reads ”Probe Rinsing (Optional)”. This menu item cannot be selected. Probe rinsing is used, for example, for automatic rinsing and cleaning of the conductivity cell. To do so, a rinsing cycle is started. A rinsing cycle can be started: timer controlled after expiration of the user defined interval, manually in the menu, by a current pulse (see page 9–46) at the current input (if current input has been set as control input, see page 9–43), remote-controlled via interface (see page 9–49). You can define an interval in the range 0.1 to 999.9 h. The interval extends from the start of one rinsing cycle to the start of the next rinsing cycle. To turn off the automatic rinsing cycle, set the interval to ”000.0 h”. Before starting a rinsing cycle, you must enter the individual step durations on the Parameter Setting level, menu item ”Probe Rinsing” (see page 9–47)! A rinsing cycle comprises the following steps: Start of Rinsing Cycle: NAMUR contact ”functional check” and contact ”probe” are activated, output current 1 (and 2) and controller output are frozen, limits are disabled, and menus are locked, the interval timer is reset. Rinsing Lead Time: User defined waiting time until contact ”rinsing” closes. This allows you to monitor response times of the valve ”probe”, for example . First Rinsing: The contact ”rinsing” is closed for the (user defined) duration of first rinsing. 9–44 Capabilities
Cleaning: The contact ”cleaning” is closed for the (user defined) duration of cleaning. Second Rinsing: The contact ”rinsing” is closed for the (user defined) duration of second rinsing. Wait Position: If current input has been set as control input, the probe remains in wait position as long as the start current of 10 to 20 mA is applied to the current input. Wait position can only be controlled via the current input. If current input has been set as signal input, wait position is omitted. Measurement Lead Time: The contact ”probe” is deactivated. Now, the user defined waiting time until rinsing cycle is terminated starts running. After expiration, ”functional check” will be turned off. If you have set one of these steps to 0000 s, it is omitted completely. Pressing during the rinsing cycle displays the measured value for approx. 5 s. Capabilities 9–45
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Instruction Manual Process Unit 73
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Changes for Software Release 6 Proc
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Safety Information Be sure to read
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Information on Electromagnetic Comp
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The representation of a menu in thi
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Contents Safety Information . . . .
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9 Capabilities of the Process Unit
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1 Overview of the Process Unit 73 L
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vanic isolation optional) allows li
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2 Operating the Process Unit 73 LF
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Control Elements Pressing menu key
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How to select a menu item Press scr
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How to keep the old setting Pressin
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3 Diagnostics Menu What you can do
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How to enter the point of measureme
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Device Diagnostics What you can do
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4 Maintenance Menu What you can do
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Resistance Measurement Press and
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Temperature Probe Adjustment This f
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5 Viewing Level What you can do on
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6 Calibration Why do you have to ca
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How to select a calibration sequenc
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Automatic Calibration with Standard
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Calibration by Manual Entry of Cond
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Calibration by Entry of Premeasured
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With TC correction T ref = 25 °C W
Page 53 and 54: 7 Operator Level What you can do on
Page 55 and 56: 8 Administrator Level Before commis
Page 57 and 58: An Example You want to change the s
Page 59 and 60: How to set the administrator passco
Page 61 and 62: 9 Capabilities of the Process Unit
Page 63 and 64: Pt 100/ Pt 1000/ Ni 100 Process Uni
Page 65 and 66: wt pk bn gy bu gn rd yw Shi
Page 67 and 68: Conductivity Measurement using ZU 0
Page 69 and 70: Sensor cable Terminal box ZU 0307 E
Page 71 and 72: Sensor cable Terminal box ZU 0307 g
Page 73 and 74: Calibration Solution for Automatic
Page 75 and 76: Manual Temperature Compensation Man
Page 77 and 78: How to define temperature compensat
Page 79 and 80: Trilinear Output Curve output curre
Page 81 and 82: 2nd Current Output If your unit is
Page 83 and 84: 100 Trilinear (Bilinear) Curve (fal
Page 85 and 86: How to set the parameters for conce
Page 87 and 88: Complete Installation using all Fun
Page 89 and 90: NAMUR Contacts The three NAMUR cont
Page 91 and 92: During calibration the limit contac
Page 93 and 94: In measuring mode the present value
Page 95 and 96: Output 2 can be used to control val
Page 97 and 98: The information text shows the cont
Page 99 and 100: ÍÍÍÍÍÍÍÍÍÍÍÍ ÍÍÍÍÍ
Page 101 and 102: Error Messages for Controller Setti
Page 103: How to set the current input parame
Page 107 and 108: How to set the rinsing cycle parame
Page 109 and 110: Remote Interface Operation You can
Page 111 and 112: How to set the interface parameters
Page 113 and 114: 10 Information on Mounting and Inst
Page 115 and 116: front removable for instrument inst
Page 117 and 118: Installation Installation of the Pr
Page 119: Maintenance and Cleaning The Proces
Page 122 and 123: Process Unit 73 LF Error Message (D
Page 124 and 125: Process Unit 73 LF According to Int
Page 126 and 127: Process Unit 73 LF 11-6 Error Messa
Page 128 and 129: Process Unit 73 LF Output Current 1
Page 130 and 131: Process Unit 73 LF Transmission beh
Page 132 and 133: Process Unit 73 LF STATUS Commands:
Page 134 and 135: Process Unit 73 LF Device Diagnosti
Page 136 and 137: Process Unit 73 LF Clock RPRTM WPRT
Page 138 and 139: Process Unit 73 LF WPDISLAI1 Displa
Page 140 and 141: Process Unit 73 LF RPTOMA WPTOMA0 W
Page 142 and 143: Process Unit 73 LF Output Current 1
Page 144 and 145: Process Unit 73 LF Output 2/Control
Page 146 and 147: Process Unit 73 LF Limit Contacts/C
Page 148 and 149: Process Unit 73 LF RPCIBV WPCIBVp R
Page 150 and 151: Process Unit 73 LF Current Input RP
Page 152 and 153: Process Unit 73 LF Automatic Device
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Process Unit 73 LF Digital Controll
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Process Unit 73 LF Interface Bus Pr
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Process Unit 73 LF 4th Field: CRC16
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Process Unit 73 LF Interface Bus Pr
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Process Unit 73 LF Mounting Accesso
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Process Unit 73 LF Display Display
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Process Unit 73 LF Cells Model SE 6
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Process Unit 73 LF Model ZU 0071*)
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Process Unit 73 LF cable length app
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Process Unit 73 LF 1 Observe instal
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Process Unit 73 LF connector plug W
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Process Unit 73 LF [mS/cm] 1,200 H
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Process Unit 73 LF 700 [mS/cm] Sal
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Process Unit 73 LF Sodium Chloride
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Process Unit 73 LF EPROM Replacemen
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Process Unit 73 LF 16-4 Appendix
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Process Unit 73 LF conductance cond
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Process Unit 73 LF Parameter Settin
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Process Unit 73 LF cell, SE 603 app
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Process Unit 73 LF limit contacts/c
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Process Unit 73 LF viewing angle ad
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Process Unit 73 LF - Knick

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