Download PDFs:

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.

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)
• 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
• 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

Numeric Display, DC Current:

• Measurement: 33000
• Output: 25000
• Frequency: 19999
• Other: 6600
• Sub Display: Displays supplemental information for various functions

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)

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