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Anleitung Zusammenfassung
Each alarm level can be programmed to be either non-Latching or Latching and can also be programmed to activate either when the input level is GREATER THAN the user adjusted alarm level or LESS THAN the user adjusted alarm level. When the Model 4011 is used as a 4-20mA signal loop controller a third alarm is provided which detects loop current being less than 3mA. The outputs of the three Alarms are SPDT relays with contacts rating of 10A at 28VDC or 120VAC and are independently fused at 5A. The front panel of the Model 4011 consists of a 3 1/2 digit Liquid Crystal Display, three Alarm LEDs, a Reset Pushbutton, four display selection LEDs and a Select Pushbutton. The SELECT button steps the display through one of the four possible selections which will be indicated by the appropriate illuminated LED. The following are the Display selections: CONC: TheactualconcentrationLevel(0to 100% or PPM).(Factory Option Available: Any scale from 0 to 1,990 PPM) ALM1: Alarm Level 1 user adjusted Alarm Level 0-100% or PPM). ALM2: AlarmLevel2useradjustedAlarmLevel (0-100% or PPM). LOOP: Actual Loop Current (4-20mA). The three alarm indication LEDs on the front panel are Trouble (loop current less than 3mA) Alarm Level 1 and Alarm Level 2. The RESET pushbutton is used to reset the relays when the user has selected Latching or Acknowledge Mode. The Model 4011 is packaged in a 1/8 DIN Enclosure (1.9H x 3.8 W x 6.5D inches) and can be panel mounted. Wiring connection to the controller is via a two piece terminal block which allows disassembly of the controller without disconnection of individual wires. The controller is supplied in the following configurations. -Model 4011-00: Controller 4-20mA input, DC, DIN -Model 4011-10: Controller 4-20mA input, AC, DIN 1.1.2 Options The following options are available on theModel 4011. A. Power Supply & Battery Charger Model4346:24VDC@ lAmppower supply with a trickle charge battery charger, (figure IB) Capable of powering four Model 4011 controllers. B. Battery 12 Volt 6.5 AH C. Chart Recorder Singlechannel impact printchartrecorder with speed of 2" per hour. D. Enclosures Various Nema and Explosion Proof Enclosures are available. Model Number: 4011 Single Channel 4-20 mA Controller Page: 1 Sierra Monitor Corporation INSTRUCTION MANUAL 21 INSTALLATION 2.1.1 Site Preparation & Installation The Model 4011, if panel mounted, requires a 3.58"W x 1.69"H +/- 0.010" cutout. The depth required behind the panel is 8.0" which leaves sufficient space to connect cables at the rear of the enclosure. A properly grounded AC outlet within 6 feet of the enclosure is required. To install the controller: 1. Remove the two alien screws at the rear of the enclosure that secure the panel mounting bars on the side of the enclosure. 2. Completely remove the bars and insert the Model 4011 through the front of the panel cutout 3. Reinstall the panel mounting bars and the alien screws. Tighten alien screws until the Model 4011 is securely mounted in panel. 4. Connect the (DC+) wire of the power supply module to the terminal block at the rear of the Controller marked (P) and connect the (DC-) wire of the power supply module to the terminal block at the rear of the Controller marked (G) (figure 1A & IB). 5. Connect alarm or control devices to the appropriate relay terminals. It is recommended that 18 AWG wire (minimum) be used when connecting to the relay contacts. 6. Connect the 4-20mA remote Sensor Module to the terminal block labeled “P” (Power=+24 Vdc), “S” (Signal= 4-20mA) and “G” (Ground). The “P” and “G” positions are also used for connecting the DC Power Supply. 7. If external alarm acknowledge or rest is to be used connect a momentary switch to the terminals marked “GND” and “ACK” 8. If the chart recorder output is to be used connect to terminals marked “AOUT”, “+12V” and “GND” for chart recorder power and signal. Refer to the Table 1 to determine the correct wire gauge for the distance the Sensor Module will be from the Model 4011 Controller. The manufacturer recommends Belden cable UL-1007 or UL1015 of the appropriate gauge. Wire Gaupe Maximum Cable Leneth(ft) 20 2,000 18 3,000 16 4,000 14 6,500 12 9,000 TABLE 1 CABLE GAUGE AND LENGTH Model Number: 4011 Single Channel 4-20 mA Controller Page: 2 SIERRA MONITOR CORPORATION INSTRUCTION MANUAL MODEL 4101 —XX SENSOR MODULE FIGURE 1-A MODEL 4011 CONTROLLER(WITH AC ADAPTER) Model Number: 4011 Single Channel 4-20 mA Controller Page: 3 ■ Sierra Monitor Corporation INSTRUCTION MANUAL MODEL 4346 BATTERY BACK-UP FIGURE IB MODEL 4011 CONTROLLER(WITH BATTERY BACK-UP) 2.1.2 Start-up Procedure After all the wiring has been installed plug the Power supply into an AC outlet. The CONC LED (GRN LED) on the front panel should be ON and the LCD should be displaying 00.0 if the loop current is 4ma or less. If not make sure that the wiring from the power supply is correct. If the unit has a Power Supply with trickle ...