• YOKOGAWA

CA450 Process Multimeter / Calibrator
Loop Power and 4 to 20 mA Output function in a DMM

From daily inspection to troubleshooting of measurement instruments— all in a single unit! ideal for checking the operation of field devices and maintenance of electrical equipment

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Features

  • Loop check functions
    – Simultaneous 24 V loop power and mA measurement
    – HART/BRAIN mode setting with loop power (Adds 250 ohm resistance internally
  • Generation functions
    - SIMULATE (SINK) function simulates transmitters
    – 4-20 mA span/step/auto-step/sweep output
  • Measurement functions
    - High accuracy signal measurement:
    – DC mA 0.05%/30.000 mA
    – Handheld DMM function
    – Peak Hold function for the peak voltage measurement of DCS power supply
    – Dedicated sensor modes for direct reading of many sensor signal types
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    • Enhanced Safety—helps eliminate electric shocks
      – Current terminal shutter prevents incorrect connections
      – 1 A or more of AC/DC current can be read directly using the optional clamp probe and scaling in SENSOR mode.*1
      – Measurement categories 600 V CAT. IV, 1000 V CAT. III
    • Linking with a PC
    • DMM Communication Package can be used to save and
    • Loop check function
    • Span generation function
    • Step generation function
    • Sweep generation function
    • AC/DC Current measurement (SENSOR mode
    • Transmitter simulation function

Applications

  • Operating check, adjustment for valve and positioner
  • 4–20 mA step/Auto-step/sweep output applications
  • AC/DC current measurement (sensor mode)
  • 2-wire transmitter loop check (mA LOOP POWER) and simulator (20 mA SINK)
  • Power supply peak-to-peak measurement
  • Panel meter inspection

Description

The Yokogawa 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 Yokogawa CA450 provides 24-Volt loop power, reducing the need for carrying a separate power supply when performing transmitter testing. And with its built-in, selectable 250-Ohm Hart resistor, it also eliminates the need for a separate resistor. Process technicians can now do the same job while carrying less equipment.

  • Literature
  • Specifications

|||| Click to View Accuracy Specifications

Model: Yokogawa CA12E Calibrator
DC Voltage Resolution Accuracy Input Resistance
600 mV 0.1 mV 0.09%+2 10 MΩ or more
6 V 0.001 V 0.09%+1 Approx. 11 MΩ
60 V 0.01 V 0.09%+1 Approx. 11 MΩ
600 V 0.1 V 0.09%+1 Approx. 11 MΩ
1000 V 1 V 0.1%+1 Approx. 10 MΩ
AC Voltage Resolution Accuracy Input Resistance
600 mV 0.1 mV 0.5%+5*1 | 1%+5*2 | 1.5%+5*3 10 MΩ or more, <200 pF
6 V 0.001 V 0.5%+5*1 | 1%+5*2 | 1.5%+5*3 Approx. 11 Ω, <50 pF
60 V 0.01 V 0.5%+5*1 | 1%+5*2 | 1.5%+5*3 Approx. 11 Ω, <50 pF
600 V 0.1 V 0.5%+5*1 | 1%+5*2 | 1.5%+5*3 Approx. 11 Ω, <50 pF
1000 V 1 V 0.5%+5*1 | 1%+5*2 | 1.5%+5*3 Approx. 10 MΩ
DC Current Resolution Accuracy Voltage Drop
30 mA 0.001 mA 0.05%+2 <0.3 V
100 mA 0.01 mA 0.05%+2 <0.8 V
Resistance Resolution Accuracy Maximum Current
600 Ω 0.1 Ω 0.2%+2 <1.2 mA
6 kΩ 0.001 kΩ 0.2%+1 <110 μA
60 kΩ 0.01 Ω 0.2%+1 <13 μA
600 kΩ 0.1 kΩ 0.2%+1 <13 μA
6 MΩ 0.001 MΩ 0.35%+3 <130 nA
60 MΩ 0.01 MΩ 1%+2 <130 nA
Frequency Resolution Accuracy Input Voltage Range
10.00 Hz to 199.99 Hz 0.01 Hz 0.005%+1 0.3 to 600 Vrms
90.0 Hz to 1999.9 Hz 0.1 Hz 0.005%+1 0.3 to 600 Vrms
0.900 kHz to 19.999 kHz 0.001 kHz 0.005%+1 0.4 to 600 Vrms
DC Output Resolution Accuracy Input Voltage Range
20 mA 0.001 mA 0.05% of range • SOURCE 0 – 20 mA
• (SINK) 0 – 20 mA
• External power supply 15 to 48 V overrange up to 25 mA < 10 mH
Diode Test Resolution Accuracy Measuring Current
2 V 0.001 V 1%+2 Approx. 0.5 mA
Continuity Check Resolution Accuracy Measuring Current
600 Ω 0.1 Ω The buzzer sounds at resistances lower than 50±30 Ω <1.2 mA
       
*1 -50Hz / 60Hz
*2 – 40 Hz to 500 Hz
*3 – 500 Hz to 1 kHz
Model: Yokogawa CA450 Calibrator
Display
Display: 5-digit LCD (7 segment)
Numeric display: DC current: 33000 counts
DC current: 25000 counts
Frequency: 19999
Other: 6600
Subdisplay: Displays supplemental information for various functions
Functions
Measurement functions: DC voltage, AC voltage, DC current, resistance, frequency, continuity check, diode test
Additional functions: 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 Ω); relative measured value display (RELi, REL%); 24 V loop power supply; internal resistor on/off for HART communication
Output functions: 20 mA DC current for current output SOURCE and current output SIMULATE(SINK), Current span switching and current sweep output
Operation methods: Measurement: Δ∑ modulation
Output: Multiplicative DA
General Specifications
Power supply: Four AA-size alkaline batteries (1.5 V LR6)
Battery life: When using alkaline batteries DC voltage measurement: Approx. 140 hours
DC current output (SIMULATE): Approx. 140 hours
DC current output (SOURCE) 12 mA (500 q load): Approx. 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)
Operating temperature: -20°C to 55°C (80% RH or less) with no condensation Within the range of 40°C to 55°C, the humidity must be 70% RH or less.
Storage temperature: -40°C to 70°C (70% RH or less) with no condensation
Dimensions: Approx. 90 (W) × 192 (H) × 49 (D) mm
Weight: Approx. 600 g (including the batteries)
Safety standards: EN61010-1, EN61010-2-030 and EN61010-031
Measurement Categories: 1000 V CATIII, 600 V CATIV For current measurement and output: 48 V max, 100 m max
Lead cables (98064): 70 VDC, 100 mA
Pollution degree 2, indoor use
EMC standards: EN61326-1, EN61326-2-2
EN55011 Class B Group 1
  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 voltage measurement (6 V range or higher):
Within 5 times the accuracy
DC voltage measurement (6 V range or higher):
Within 5 times the accuracy