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It is now in "STANDBY" Mode. Push d once more to resume "RUN" Mode. PUSH d TWICE to disable the system during an EMERGENCY. To Reset the Meter: When the controller is in the "MENU" Mode, push c once to direct controller one step backward of the top menu item. Push c twice to reset controller, prior to resuming "Run" Mode except after "Alarms", that will go to the "Run" Mode without resetting the controller. 4 PART 2 SETUP 2.1 Front Panel Figure 2.1 Front Panel Display Table 2.1 Front Panel Annunciators 1 Output 1/Setpoint 1/ Alarm 1 indicator 2 Output 2/Setpoint 2/ Alarm 2 indicator a/MENU Changes display to Configuration Mode and advances through menu items* b/PK/GRS Used in Program Mode and Peak or Gross Recall* c/TARE Used in Program Mode and to tare your reading* d/ENTER Accesses submenus in Configuration Mode and stores selected values* * See Part 3 Operation: Configuration Mode 2.2 Rear Panel Connections The rear panel connections are shown in Figures 2.2 and 2.3. Figure 2.2 Rear Panel Power and Output Connections 1/8 DIN 1/32 1/16 DIN DIN 5 8 7 6 5 4 3 2 1 6 5 4 6 5 4 6 5 4 3 2 1 3 2 1 Refer to the Quick Start Guide for assembly and disassembly instructions. Figure 2.3 Rear Panel Input Connections Table 2.2 Rear Panel Connector POWER AC/DC Power Connector: All models INPUT Input Connector: All models PR (Process) / ST (Strain) OUTPUT 1 Based on one of the following models: Relay SPDT Solid State Relay Pulse Analog Output (Voltage and Current) OUTPUT 2 Based on one of the following models: Relay SPDT Solid State Relay Pulse OPTION Based on one of the following models: RS-232C or RS-485 programmable Excitation 6 2.3 Electrical Installation 2.3.1 Power Connections Caution: Do not connect power to your device until you have completed all input and output connections. Failure to do so may result in injury! Connect the main power connections as shown in Figure 2.4. Figure 2.4 Main Power Connections Table 2.3 Fuse Requirements FUSEConnector Output Type For 115 Vac For 230 Vac DC FUSE 1 Power * N/A 100 mA(T) 100 mA(T) 100 mA(T) FUSE 2 Power * N/A N/A N/A 400 mA(T) For the low voltage power option, in order to maintain the same degree of protection as the standard high voltage input power units (90 - 240 Vac), always use a Safety Agency Approved DC or AC source with the same Overvoltage Category and pollution degree as the standard AC unit (90 240 Vac). The Safety European Standard EN61010-1 for measurement, control, and laboratory equipment requires that fuses must be specified based on IEC127. This standard specifies for a Time-lag fuse, the letter code “T”. The above recommended fuses are of the type IEC127-2-sheet III. Be aware that there are significant differences between the requirements listed in the UL 248-14/CSA 248.14 and the IEC 127 fuse standards. As a result, no single fuse can carry all approval listings. A 1.0 Amp IEC fuse is approximately equivalent to a 1.4 Amp UL/CSA fuse. It is advised to consult the manufacturer’s data sheets for a cross-reference. 7 2.3.2 Process Current The figure below shows the wiring hookup for Process Current 0 – 20 mA. Figure 2.5 Process Current Wiring Hookup (Internal and External Excitation) 2.3.3 Process Voltage The figure below shows the wiring hookup for Process Voltage 0 – 100 mV, 0 – 1 V, 0 – 10 V. Figure 2.6 a) Process Voltage Wiring Hookup b) Process Voltage Wiring Hookup with Sensor Excitation without Sensor Excitation RL -Voltage limited resistor, which allows to convert 24 Vdc internal excitation voltage to the appropriate process input value. For instance: if the potentiometer value is equal to 10 k., the minimum RL is 14 k. for 10 V process input. When configuring your instrument, select Process Type in the Input Type Menu (see Part 3). 8 2.3.4 Strain Gauge The figure below shows the wiring hookup for 4-wire bridge input. Figure 2.7 a) 4-Wire Voltage/Bridge Input b) 4-Wire Bridge Input with with Internal Excitation External Excitation Wiring Wiring Hookup Hookup In 4-Wire connections the voltage drop across long excitation lead wires of strain gauge bridge may cause measurement errors. The output of a strain gauge bridge also depends on the stability of excitation voltage. To correct for voltage drop and changes in excitation voltage, 6-wire input configuration and ratio measurement are used. In order for the Ratiometric to work properly, the External Excitation should not drop below 4.6 Vdc. The figure below shows 6-wire hookup for 6-wire bridge input. Figure 2.8 a) 6-Wire Bridge Input with b) 6-Wire Bridge Input with Internal Excitation and External Excitation and Ratio Measurement Wiring Ratio Measurement Wiring Hookup Hookup 9 2.3.4 Strain Gauge (continued) The figure below shows Voltage (bridge with amplified output) input with internal excitation. Where: +S: signal plus -S: signal return +Ext: excitation plus Figure 2.9 -Ext: excitation return +E: plus excitation sense 4-Wire Voltage Input (Bridge -E: minus excitation sense. withAmplified Output...

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