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Process Multimeter (CA450)

Transmitter terminal diagram. Process Multimeter (CA450). 2-wire transmitter loop check (mA LOOP POWER). Example connection for a pressure transmitter ・ Loop check function ・ Supplies 24 VDC power to the transmitter, and measures mADC output ・ Precisely measures instrumentation signals:

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Process Multimeter (CA450)

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  1. Transmitter terminal diagram Process Multimeter (CA450) • 2-wire transmitter loop check (mA LOOP POWER) Example connection for a pressure transmitter ・Loop check function ・Supplies 24 VDC power to the transmitter, and measures mADC output ・Precisely measures instrumentation signals: DC mA 0.05%/30.000 mA ・Using the setting for HART mode with loop power (250 Ω resistance), enables HART communications and brain communications YHC HART communicator 4–20 mA current signal 24 V loop power supply

  2. 2-wire transmitter Process Multimeter (CA450) • 2-wire transmitter simulator (20 mA SINK) Transmitter simulator ・With the CA450, transmitter I/O can be checked (simulated) by drawing in designated currents (SINK) from the external voltage generators (distributors) of your instrumentation. * As in the figure on the right, applied voltage is polar: take care not to apply voltage in the opposite direction. Converter (distributor) Constant current output of 4–20 mA

  3. Process Multimeter (CA450) • Operating check and adjustment for valve and positioner Valve positioner recovery work ・Zero span adjustmentUsing Span check function・Step responseResponse test with auto-step function・HuntingResponse test with auto-step (FAST)・Stick-slipResponse test with sweep output・Valve open/close errorInput output error test with 25% step output Complete all these tasks with a single process multimeter ! Flow meter Current-to-Pneumatic Positioner Auto-step output Current-to-Pneumatic Converter 4-20 mA output current measurement Fast: 5sec, Slow: 15/30/45/60 sec selectable Pressure Calibrator Pressure measurement Constant current output of 4–20 mA

  4. Process Multimeter (CA450) • 4–20 mA step/Auto-step/sweep output Checking controller programs4–20 mA step generation ・Switches between 4 and 20mA in 4mA output steps making work more efficient. Ideal for checking controller programs. Flow meter Controller Valve open/close signal Alarm Fast: 5sec, Slow: 15/30/45/60 sec selectable Constant current output of 4–20 mA

  5. Process Multimeter (CA450) • Power supply peak-to-peak measurement (peak hold) Measuring power supply peak-to-peak ・With the CA450, peak value (instantaneous) detection is possible in DC voltage measurement (DCV) mode. This enables easy measurement of power supply peak-to-peak during DCS inspection. * The value relative to a reference value can also be displayedduring peak value measurement. P-P measurement: 6 ms or higher Power supply

  6. Process Multimeter (CA450) • AC/DC current measurement (sensor mode) Sensor mode ・Enables scaling to any coefficient and unit relative to the input voltage (ACmV or DCmV). ・From the DCV range, easily set with the SHIFT+SELECT keys. ・Measurable ranges: DCA0–180 A (96035) ACA 0.1–3000 A (960 series) ACmV or DCmV

  7. Suppressed meter 2101A36 Process Multimeter (CA450) • Panel meter inspection Connection, reproducibility test, error test ・4–20 mA sweep (SLOW 15 s/FAST 40 s) ・Zero point adjustment of a suppressed meter ・Step function for checking error at each point 4-20 mA sweep/step output

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