• YOKOGAWA

CA700 Precision Pressure Calibrator
Basic accuracy: Pressure (measurement) / 0.01% rdg
Current/voltage (source/measurement) / 0.015% rdg

Achieves the highest resolution and widest range in the portable class • 0.001 kPa (200.000 kPa range)

Yokogawa CA700 Precision Pressure Calibrators
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Features

  • High Accuracy and Long Stability: Achieves the highest accuracy in the portable class
  • Basic accuracy: Pressure (measurement) / 0.01% rdg. Current/voltage (source/measurement) / 0.015% rdg
  • Rangeability – Achieves the highest resolution and widest range in the portable class
  • User Support – Strong support for field calibration and maintenance work
  • Calibration procedures of pressure transmitters and pressure switches are embedded
  • IP54 dustproof and waterproof robust case enables use in harsh environments
  • Three high-performance hand pump models for different pressure ranges are available

Applications

  • Field Calibration of Differential Pressure and Pressure Transmitters
  • Check and I/O Adjustment of an Electro-pneumatic Converter
  • Two-wire Transmitter Loop Check
  • Pressure Switch Test
  • 20 mA SIMULATE (Two-wire Transmitter Simulator)
  • Input Command Check and Adjustment of Recorders and Controllers

Description

The CA700 Pressure Calibrator has a basic accuracy of 0.01% of rdg on pressure measurement and 0.015% of rdg on Current / Voltage of the source and measurement portions of the CA700. The CA700 is the most accurate calibrator in the portable calibrator class. It also has the highest resolution and widest range of any hand held portable in its class with resolution of 0.001 kpa (200.00 kpa range) and a resolution of 0.0001 psi (29 psi range)

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In addition the CA700 stores calibration procedures for pressure transmitters and pressure switched which allow strong support for field calibration and maintenance work. The CA700 is housed in a robust IP54 dust proof and water proof case for use in harsh environments. Available in three model ranges which includes low pressure, medium pressure or high pressure with selectable high-performance hand pumps for each range.

Features:

High Accuracy and Long Stability: Achieves the highest accuracy in the portable class
Basic accuracy: Pressure (measurement) / 0.01% rdg
Current/voltage (source/measurement): 0.015% rdg
Rangeability: Achieves the highest resolution and widest range in the portable class 0.001 kPa (200.000 kPa range) 0.0001 psi (29 psi range)
User Support: Strong support for field calibration and maintenance work. Calibration procedures of pressure transmitters and pressure switches are embedded. “As Found”, “As Left” data and error rate (%) can be recorded.
Field Use: IP54 dustproof and waterproof robust case enables use in harsh environments.
Accessories: Three high-performance hand pump models for different pressure ranges are available.

Applications:

Field Calibration of Differential Pressure and Pressure Transmitters. Calibration of pressure transmitters is required to accurately measure the input and output values and to calculate the error rate. The CA700 ensures reliable calibration with its function to accurately measure the input and output values of pressure and current. Additionally its embedded calibration procedures enable users to perform certain calibration following the prescribed procedure. Pressure Switch Test A pressure switch test measures the pressure at the time when the contact opens and closes and the resistance at the time when the dead band contact closes. A test procedure is embedded to enable users to carry out a test following the prescribed procedure. Check and I/O Adjustment of an Electro-pneumatic Converter Input and output adjustment of an electro-pneumatic converter is carried out by applying rising and falling currents of 0, 25, 50, 75, and 100% of the span. A reliable test can be carried out with the CA700 that has a 4-20 mA step function for signal generation and a capability to accurately measure the generated pressure. 20 mA SIMULATE (Two-wire Transmitter Simulator).

The CA700 can also be used as a transmitter simulator to carry out a loop test. It can absorb (SINK) the set current from an external voltage generating device (e.g., a distributor system or PLC) of instrumentation equipment. 4-20mA current can be sourced with an accuracy of 0.015% of the rdg.

Two-wire Transmitter Loop Check DC mA signals can be measured by supplying power to the transmitter from a 24 V DC power supply. DC mA signal measurement and zero-point check can be performed with an accuracy of 0.015% of the rdg. A 250-ohm resistor for HART and BRAIN communication is included in this calibrator so there is no need to attach an external resistor when connecting to a handy terminal. Input Command Check and Adjustment of Recorders and Controllers Instrumentation loop test and operation/command check can be performed by sourcing DC 1-5 V / 4-20 mA instrumentation signals with an accuracy of 0.015% of the rdg. Furthermore, two patterns of linear sweep and step sweep can be selected (the sweep time can be specified from 15, 30, 45, and 60 sec).

  • Literature
  • Specifications
Pressure Calibrators
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AC Voltage / Current Standards
++ Yokogawa CA700 Standard Specification Brochure | 5.2 MB
Model: Yokogawa CA700 Calibrator
Pressure Measurement CA700-E-01 CA700–E–02 CA700–E–03
Pressure Type Gauge
Measurement range: Pos. : 0 to 200 kPa
Neg. : -80 to 0 kPa		 Pos. : 0 to 1000 kPa
Neg. : -80 to 0 kPa		 Pos. : 0 to 3500 kPa
Neg. pressure: -80 to 0 kPa
Measurement display range: To 240.000 kPa To 1200.00 kPa To 4200.00 kPa
Resolution: 0.001 kPa 0.01 kPa 0.01 kPa
 
Meas. accuracy 6mo.:
Positive pressure: 		20 to 200 kPa:
±(0.01% of rdg + 0.003 kPa)
0 to 20 kPa: ±(0.005 kPa)		 (0.01% of rdg + 0.04 kPa) ±(0.01% of rdg + 0.15 kPa)
Meas. accuracy 6mo.:
Negative pressure: 		±(0.2% of rdg + 0.080 kPa) ±(0.2% of rdg + 0.08 kPa) ±(0.2% of rdg + 0.08 kPa)
Meas. accuracy 1yr.:
Positive pressure: 		20 to 200 kPa:
±(0.01% of rdg + 0.010 kPa)
0 to 20 kPa: ±0.012 kPa		 ±(0.01% of rdg + 0.08 kPa ±(0.01% of rdg + 0.30 kPa)
Meas. accuracy 1yr.:
Negative pressure: 		±(0.2% of rdg + 0.090 kPa) ±(0.2% of rdg + 0.09 kPa) ±(0.2% of rdg + 0.09 kPa)
Response time: 2.5 s or less
Allowable input: 2.7 kPa abs to 500 kPa gauge 2.7 kPa abs to 3000 kPa gauge 2.7 kPa abs to 4500 kPa gauge
Internal volume: Approx. 6 cm3
Temperature coefficient: ±(0.001% of reading + 0.001% of full scale)/°C or less
Influence of positional setup: Zero-point drift ±0.3 kPa or less
Measurement fluid: Gas and liquid (non-corrosive, non-flammable, non-explosive, and non-toxic fluids)
Measurement fluid temperature: -10 to 50°C
Pressure sensor: Silicon resonant sensor
Pressure sensor element: Diaphragm
Pressure display units: kPa and other units
(Pa, hPa, MPa, mbar, bar, atm, mmHg, inHg, gf/cm2, kgf/cm2, mmH2O@4°C, mmH2O@20°C, ftH2O@4°C, ftH2O@20°C, inH2O@4°C, inH2O@20°C, Torr, psi )
Input port: Rc 1/4 or 1/4 NPT female thread (selectable
Measurement unit material: Diaphragm: Hastelloy C276 and input port: SUS316

|||| Click to View Measuring Specifications

DC Current Measurement
DC Current Measurement
Voltage: Plug-in terminal (safety terminal)
Current: Large binding post
Selectable LO terminal to earth or floating. Max. floating voltage to earth : 12 Vpk
DC Current Measurement
Range Resolution Measurement range Measurement accuracy
20 mA 1 μA 0 to ±20.000 mA 0.015% of rdg + 3 μA
100 mA 10 μA 0 to ±100.00 mA 0.015% of rdg + 30 μA
DC Voltage Measurement
Range Resolution Measurement range Measurement accuracy
5V 0.1 mV 0 to ±5.0000 V 0.015% of rdg + 0.5 mV
50V 10 μA 0 to ±100.00 mA 0.015% of rdg + 30 μA
24 V Loop Power Supply
Supply voltage: 24 V ± 1 V
24 V ± 6 V

|||| Click to View Source Specifications

DC Current Source
Range Resolution Measurement range Measurement accuracy
20 mA 1 μA 0 to 20.000 mA 0.015% of setting + 3 μA
20 mA Simulate 1 μA 0 to 20.000 mA 0.015% of setting + 3 μA
DC Voltage Source
Range Resolution Measurement range Measurement accuracy
5V 0.1 mV 0 to 5.0000 V 0.015% of setting + 0.5 mV
Specifications
Display: Dot matrix LCD (320×240 dots) c/w LED Backlight
Display refresh rate; Approx. 300ms (3 times/sec)
Warm-up time: Approx. 5 minutes
Power Voltage: Six alkaline AA batteries
Battery life: Approx. 35 hours when measuring current with the 24 V loop power supply OFF and approx 10 hours with the 24 V loop power supply ON
Auto power-off: Approx. 60 minutes (the function can be disabled)
Insulation resistance: 100 MΩ or more (500 VDC) between the input terminal and case and between the input port and case
Withstand voltage: 500 VAC for 1 minute between the input terminal and case and between the input port and case
Protection grade: IP54 dustproof and waterproof structure
Dimensions: Approx. 264 (W) x 188 (H) x 96 (D) mm, excluding protrusions
Weight: Approx. 2kg (including batteries
Compliance standards: Safety: EN61010-1, EN61010-2-030, contamination class 2
EMC: EN61326-1 Class A, EN55011 Class A Group 1
Operating temperature: -10 to 50°C and 20 to 80%RH (no condensation)
Storage temperature: -20 to 60°C and 20 to 80%RH (no condensation)
Interfaces: Select and switch between USB A mass-storage device, USB mini-B communication device class, and mass storage class
External sensor: A dedicated external sensor can be connected via a connector. (Planned to be released in the future
Accessories: A set of 1.7m long black and red lead wires with alligator clips for generation and measurement, six alkaline AA batteries, R1 1/4” – 1/8” NPT female thread x 1, ferrite core x 2, R 1/4” – 1/4” NPT female thread x 1, accessory case, instruction manual (CD), startup guide, shoulder strap