MODEL 2604 CONTROLLER - USER GUIDE - d a n m a r k
MODEL 2604 CONTROLLER - USER GUIDE - d a n m a r k MODEL 2604 CONTROLLER - USER GUIDE - d a n m a r k
Installation2604 Controller2.5. TO CONNECT ZIRCONIA (DUAL SIGNAL) PROBEA dual signal probe, such as a Zirconia probe, will normally be connected to a Dual PV Inputmodule (Code DP). The module presents two channels, A and C, where A is the voltage inputand C is the mV, thermocouple, RTD or mA input.Example 1 shown below uses the Dual PV Input module with both channels configured. Inthis configuration the module runs at 4.5Hz. The two channels are un-isolated from oneanotherbut isolated from the rest of the instrument.Example 2 uses two modules. The modules can either be two PV Input modules (code PV) ora Dual PV Input module (code DP) with Channel C configured as ‘None’ plus a PV Inputmodule. This combination runs at 9Hz and may be used if the loop is unusually fast.I/O ModuleDual PVInputTypicalusageZirconiaprobeOrderCodeDPConnections and examples of useExample 1:- Using the Dual PV Input Module.Channel C is shown configured for thermocouple.The temperature sensor of a zirconia probe isconnected to this input, terminals C & D. TheVolt Source is connected to the A channel,terminals A & D.-ZirconiaVoltsource ++-Note: The +ve of the voltsource must be connected tothe-ve of the thermocouple.ABCDTwo PVInputModulesPVExample 2:- Using Two ModulesThe temperature sensor of the zirconia probe canbe connected to the precision PV input of one I/Omodule, connections C & D, with the Volt Sourceconnected to the second module, terminals A &D.+AZirconiaBVolt+sourceC-C-DDFigure 2-19: Wiring Connections for Zirconia Probe2-24 User Guide Part No HA026491 Issue 3.0 Apr-02
2604 Controller Installation2.5.1. Zirconia Probe Screening2.5.1.1. Zirconia Carbon Probe ConstructionHot EndZirconiaSensorOuter ElectrodeCeramic InsulatorInner ElectrodeOuter metallic shell of the probeScreen-Zirc. mV++Thermocouple-2.5.1.2. Screening connections when two modules are usedThe zirconia sensor wires should be screened and connected to the outer shell of the probe if itis situated in an area of high interference.A+BOuter ElectrodeInner ElectrodeScreenZirc. mV+-+Screened Cable-CDAT.C.-+BC-D2.5.1.3. Screening connections when a dual input module is usedBoth the thermocouple and the zirconia sensor wires must be screened and connected to theouter shell of the probe if it is situated in an area of high interference.Note the reverse connection of the zirconia sensor .Outer ElectrodeInner ElectrodeScreenZirc. mVT.C.+--+Screened CableScreened Compensating Cable-++-ABCDUser Guide Part No HA026491 Issue 3.0 Apr-02 2-25
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Installation<strong>2604</strong> Controller2.5. TO CONNECT ZIRCONIA (DUAL SIGNAL) PROBEA dual signal probe, such as a Zirconia probe, will normally be connected to a Dual PV Inputmodule (Code DP). The module presents two channels, A and C, where A is the voltage inputand C is the mV, thermocouple, RTD or mA input.Example 1 shown below uses the Dual PV Input module with both channels configured. Inthis configuration the module runs at 4.5Hz. The two channels are un-isolated from oneanotherbut isolated from the rest of the instrument.Example 2 uses two modules. The modules can either be two PV Input modules (code PV) ora Dual PV Input module (code DP) with Channel C configured as ‘None’ plus a PV Inputmodule. This combination runs at 9Hz and may be used if the loop is unusually fast.I/O ModuleDual PVInputTypicalusageZirconiaprobeOrderCodeDPConnections and examples of useExample 1:- Using the Dual PV Input Module.Channel C is shown configured for thermocouple.The temperature sensor of a zirconia probe isconnected to this input, terminals C & D. TheVolt Source is connected to the A channel,terminals A & D.-ZirconiaVoltsource ++-Note: The +ve of the voltsource must be connected tothe-ve of the thermocouple.ABCDTwo PVInputModulesPVExample 2:- Using Two ModulesThe temperature sensor of the zirconia probe canbe connected to the precision PV input of one I/Omodule, connections C & D, with the Volt Sourceconnected to the second module, terminals A &D.+AZirconiaBVolt+sourceC-C-DDFigure 2-19: Wiring Connections for Zirconia Probe2-24 User Guide Part No HA026491 Issue 3.0 Apr-02
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