The OMEGA™ CA450 Process
Multimeter is a portable test
instrument to combine a digital
RMS multimeter and a loop
calibrator to give process
technicians the same functionality
in one tool. The model CA450
provides 24V loop power, reducing
the need for carrying a separate
power supply when performing
transmitter testing. And with its
built-in, selectable 250? Hart
resistor, it also eliminates the need
for a separate resistor. Process
technicians can now do the same
job while carrying less equipment.
* For details visit omega.com/ir-usb
Specifications Measurement Functions: DC voltage, AC voltage, DC current, resistance, frequency, continuity check, diode test; data hold (D•H), auto hold (A•H), peak hold (P•H), auto range (Auto), range hold (range hold), maximum, minimum, and average value recording and measurement, zero adjustment (q), relative measured value display (REL, REL %), 24V loop power supply, internal resistor on/off for HART communication Output Functions: 20 am DC current for current output SOURCE and current output SIMULATE (SINK); current span switching and current sweep output Measurement Operation Method: Modulation Output: Multiplicative DA Display: 5-digit LCD (7 segment) Numeric Display, DC Current: Measurement: 33000 Output: 25000 Frequency: 19999 Other: 6600 Sub Display: Displays supplemental information for various functions Polarity Indicator: Automatic display; only the minus sign “–” appears Over Range Indicator: “OL” Low-Battery Indicator: Appears when the battery voltage is below the operating voltage Measurement Cycle: 2.5 to 5 times a second (however, frequency measurement takes place once a second) Operating Temperature and Humidity: -20 to 55°C (-4 to 131°F) (80% RH or less) with no condensation; within the range of 40 to 55°C (104 to 131°F), the humidity must be 70% RH or less Storage Temperature and Humidity: -40 to 70°C (-40 to 158°F) (70% RH or less) with no condensation Temperature Coefficient (Typical): In the ranges of -20 to 18°C (-4 to 64.4°F) and 28 to 55°C (82.4 to 131°F), add the accuracy of 23°C ± 5°C × 0.1/°C Power Supply: 4 “AA” alkaline batteries (1.5 V LR6) included Battery Life: When using alkaline batteries DC Voltage Measurement: A pproximately 140 hours DC Current Output (SIMULATE): A pproximately 140 hours DC Current Output (SOURCE) 12 mA (500 q load): Approximately 10 hours Insulation Resistance: 100 MΩ or greater at 1000 Vdc Withstand Voltage: 6.88 kVac for five seconds (between the input terminals and the case) External Dimensions: Approximately 90 W x 192 H x 49 mm D (3.5 x 7.5 x 1.9") Weight: Approximately 600 g (1.3 lb) (including the batteries) Safety Compliant Standards: EN61010-1 and EN61010-031 Measurement Categories: 1000V CATIII, 600V CATIV For Current Measurement and Output: 48 V maximum, 100 mA maximum CAT I Lead Cables (98064): 70 Vdc, 100 mA CAT I; pollution degree 2, indoor use Vibration: Sweep vibration frequencies 10 to 5 Hz to 10 Hz; amplitude 0.15 mm (peak value); duration 30 minutes Shock: 1 m (3.3') drop test as defined by safety standards Altitude: 2000 m (6562') or less EMC Standards: EN61326-1 Class B, EN61326-2-2; EN55011 Class B Group 1; influence of radiated immunity: In RF electromagnetic fields of 3 V/m EN61326-1: AC Voltage Measurement, 600 mV Range: 1.5% of range DC Voltage Measurement, 600 mV Range: 1% of range DC Current Measurement, All Ranges: 1.5% of range DC Current Output: 1.5% of range EN61326-2-2: AC/DC Voltage Measurement, 6V Range or Higher: Within 5 times the accuracy
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Note: Comes complete with 4 “AA” alkaline batteries, test leads, lead cables, fuses (inside the CA450), blank cover and operator’s manual.
Keywords:Process Multimeter Loop Power, 4 to 20 mA Digital Multimeter Output Function