Omega CL526, Multifunction Indicator-Simulator manual Input circuit

Page 14

ON	Power ON switch
OFF	Power OFF switch
IPTS68-ITS90	Temperature Scale selection
Rj	Reference junction internal-external selection
<▲> <▼>	Membrane slidewires to set the simulation value (to scroll the menu of input tables and
STORE	library of engineering characters).
STORE	Memory load
<←> <→>	Parameter selection or decimal point position
START	Low limit setting of the simulation cycle
END	High limit setting of the simulation cycle
STEP	Step value setting of the simulation cycle
MODE	Simulation cycle mode selection
SOAK	Soak time setting of the simulation cycle
TIME	Total time setting of the simulation cycle
0, 1, 2	In/Out memories
°C/°F	Technical unit selection
SELECT	Parameter selection procedure
AVERAGE	Average measurements
IN/OUT	In/Out mode selection
CONVERT	Technical unit to equivalent electrical signal
AUTORAMP	Ramp program start
PROGRAM X	Scale factor program
BATTERY	Battery voltage indication
ENTER	Memory load key
SHIFT	Key secondary function
LAMP	Display backlight switch (special - only on request)

4.3Input circuit

The input circuit is based on an output buffer wired as an error amplifier. The input signal drives the negative channel ( - ) of the integrated circuit.

14

Image 14

Contents CL526 OMEGAnetSM On-Line Service Internet e-mail Info@omega.com Introductory Note Table of Contents Digital Interface General Performance Specifications Battery voltage Power supplyBattery life Dimensions 120x60x230 mm Weights net 1 KgTable of ranges and accuracy 32 to +302F ± 0.02% of rdg +0.18FGeneral Features Case Physical Description + 5 V for logic and analog circuits 5 V for analog circuits Power supplyFunctional Description Input circuit Digital display MicroprocessorFirmware Digital to analog converterBattery charger. Operation from line source Resistance and Rtd measurementsResistance and Rtd simulation Thermocouples input-output circuitUnpacking PRE-OPERATIONAL Check Out 1248.3C TcWiring practice Electrical ConnectionsThermocouple wires Examples of input /output wiring and connectionsLimit of Error of thermocouple wires ClassHow to maximize the battery life Power SupplyBattery Charger Battery Line OpOperating mode set up Power onBattery voltage indication Operation & Applications1032.2C TcK OUT mode selectionParameter or sensor selection Out 0.0C TcKTecnical unit International Temperature ScaleRj mode Decimal point positionIN-OUT data memories Data memory configurationAverage readings Data memory manual recall Data memory automatic scanningSimulation cycle selection Manual step advanceAutomatic simulation cycle End 100.0mV Time 0h 0m 50sStart 0.0mV 0mVRj compensation mode check Simulation cycleRJ 0.0C ext Mode Linear Mode SquareScale factor program ProgWord mbar Word psi Word hPaExternal Rj compensation Installation parameter procedureFirmware version code Serial number Digital Interface Digital interface data program modeDigital output wiring practice Baud RateComputer CL526 TTL to RS 232 adapterCommunication protocol from CL526 to a PC Instruct DataPage Ramp Computer request for CL526 settings = OHMInstr ModeDis/Lin STO 2 #D 127 202 Display Chksum = DATA1 + DATA2 + Data 3 + Data 4 .AND.7F Example B PC instructions to CL526 Communication programsExample a data transfer from CL526 to PC Example a3ØØ While LOC 1 = Ø Wend Faulty operating conditions MaintenanceSafety recommendations Error ChecksumProtection fuses StorageIndex WARRANTY/DISCLAIMER Temperature