Yokogawa CA71 Data sheet

<<Contents>> <<Index>>

General Specifications

Model CA51/ CA71 HANDY CAL calibrator

GS 77W02A01-01-E

 GENERAL

The CA51/CA71 HANDY CAL calibrators are comprehensive generating/measuring instruments for all your calibration and equipment checking needs at maintenance sites. The CA51/CA71 can simultaneously generate and measure voltage, current, TC, RTD and pulse signals, thus you don’t need to prepare many instruments. In addition, the incorporated rotary switches of good repute enable operations so smooth that an incorrect measurement caused from erroneous operations can be prevented.

 FEATURES

Simultaneous signal generation and measurement capability

The CA71 lets you handle regular tests on TCs, RTDs and various other types of sensors and instruments, as well as operation checks when a problem has occurred. By itself it can generate signals for input to equipment, and check output signal from equipment.

(TC and RTD measurement functions: CA71 only)

AC voltage (including supply voltage) measurement capability

In cases where numerous signal converters and other devices are mounted on a rack or panel, the CA51/CA71 can be used to check the input and output signals of each device, while simultaneously checking the power supply. There is no need for a separate multimeter to measure supply voltage.

A wide array of useful functions

Divided output (n/m) function, Auto-step function, Sweep function, Memory function and Communication function are available.

(Communication function: CA71 only)

Easy Operation

The CA51/CA71 incorporates rotary switches for simple handling. the cables, and you are ready to take measurement.

Just open the cover of carrying case and connect

 FUNCTIONS

Generation and Measurement

Generation and Measurement of Voltage/Current

The CA51/CA71 can generate voltage/current up to 30 V DC/24 mA DC and measure up to 100 V DC/100 mA DC.

4−20 mA Step Function

You can set the signal in 4 mA increments or decrements in order 4 ⇔ 8 ⇔ 12 ⇔ 16 ⇔ 20 mA by one touch operation.

20 mA SINK Function

The 20 mA SINK function can draw current from an external voltage source to the H terminal of SOURSE unit. Thus, the CA51/CA71 can be used in a loop test, for example, as a simulator for transmitters.

Example of Connection

Two-wire transmitter

4-20mA

The figure shows the example of connection to distributor for two-wire transmitter. The CA51/CA71 can draw current (SINK) from supply voltage up to28 V, and check a loop (20 mA SINK range is used). In addition, it can simultaneously measure the output of distributor.

Distributor

－

Equivalent Output of TC/RTD

In addition to10 types of TC (K, E, J, T, N, L, U, R, S and B), RTD (Pt100, JPt100) outputs are available.

The CA51/CA71 can be used for maintenance of industrial instruments for process or various thermometers.

Multi Temperature

The CA51/CA71 can be used as multi thermometer because the measurements for all ranges are available. For RTD, 3-wire measurement is available.

Built-in Reference Junction Compensation Sensor

As a means of easily providing reference junction compensation when TC is generated, you can use the temperature sensor within the CA51/CA71. For more accurate reference junction compensation, use RJ sensor (model: B9108WA) sold separately.

Example of Connection

Instrument to be calibrated (Temperature controller, temperature converter or the like)

(SOURCE)

A B b

The figure shows the example of connection for three-wire RTD thermometer. The equivalent output of temperature set in the CA51/CA71 is input to the instrument to be calibrated. At this time, three-wire connection is required to cancel the wire resistance of lead cable connecting the CA71 and the instrument to be calibrated.

GS 77W02A01-01E

1st Edition: Nov. 2002

<<Contents>> <<Index>>

Generation and Measurement of Pulse

Frequency can be set in the wide range of 1 Hz to 11 kHz. With switch selection, the CA51/CA71 can generate or

measure pulses. It is suitable for checking a flow meter or receiver.

Generation and Measurement of Voltage Pulse and Contact Pulse

The CA51/CA71 can generate and measure voltage pulse (amplitude: +0.1 V to +15 V, zero base waveform) and contact pulse.

Pulse Cycle Function

The set pulse can be output. It is suitable for checking integrating counter. (Any value of frequency and amplitude is settable.)

CPM (count/min), CPH (count/hour) Function

In MEASURE mod (functions for measurement), pulse number per minute is counted. It is suitable for the integration of discontinuous pulse signals from flow meter.

In SOURCE mode (functions for generation), you can select either generation of continuous pulse signals or generation of given number of pulses.

Example of Connection

Flow meter

Power supply (12 V or 24 V)

Pulse signal

(MEASURE)

(SOURCE)

+ +

－

The figure shows the example of connection for measurement of pulse signal integration from flow meter, and generation of pulse signal to receiver like converter, controller or the like. For example, since pulse signal from flow meter is discontinuous, use “CPM/CPH” function for integrating count of pulse number per minute (or per hour).

Pulse receiver (integrati ng counter, pulse converter, controller or the li ke)

Lead cable for measurement

Measurement range setting rotary sw itch Select fr om t he f ollow ing:

AC voltage

DC voltage

TC*

Resistance

TD *

R Frequency, pulse DC current

(* For CA71 only)

POWER key

Various function se ttings (Keys to set various settings) Generated signal setting Divided (n/m) function Memory function

Terminal adapter

(RD031)

Red

(99021)

Bl ac k

The allowable voltage to the ground when the included terminal adapter is attached to the input terminals is 30 Vpeak maximum.

Bla ck

Red

Measurement of Commercial Power Supply Voltage

AC voltage up to 300 V can be measured. World-wide supply voltage can also be measured.

Useful Functions

Divided Output (n/m) Function

The divided output (n/m) function outputs a value n/m times the setpoint of a voltage, current, resistance, TC or RTD signal.

When inputting the percentage of instrument input value within the range of zero to full scale, bothersome calculations for percentage is not required..

Auto Step Function

The auto-step function divides the range of zero to full scale into m equally, increases or decreases the output in a step-by-step manner by changing the variable n of the n/m output from n=0 to m when the divided output function (n/m) is selected.

Sweep Function

The sweep function linearly increases or decreases the output.

Memory Function

With a pair of generated and measured signal values in a set, the CA51/CA71 can handle a maximum of 50 sets of data by means of its built-in memory.

Communication Function

(CA71 only)

By connecting the communication cable (RS-232): 91017, you can read internal memory data and measured value, or set the generated signal from a personal computer.

ARNING

Blac k Blac k

Red

LIGHT k ey

urns on the LCD backlight

Lead cable for s ource (g eneration) (98020)

Signal generation range setting rotary s witch Select from the following: DC voltage TC Resistance RTD Frequency DC current

TEMP k ey Enables temperature monitoring

, p ulse

<<Contents>> <<Index>>

 SPECIFICATIONS

SOURCE unit: Range and Accuracy Accuracy: ±(setting percentage plus µV, mV, mA, Ω or °C)

Parameter Reference Range

100mV -10.00 to 110.00 mV ± (0.02%+15 µV) 10 µV

DC voltage

DC current

mA SINK 20 mA 0.1 to 24.000 mA ± (0.05%+3 µA) 1 µA External power supply: 5 to 28 V Resistance 400 Ω 0 to 400.00 Ω ± (0.025％+0.1 Ω) 0.01 Ω

RTD

TC *4

Frequency, pulse

Temperature coefficient: Accuracy shown above × (1/5)/ °C *1: Output up to 24 V/22 mA is possible when using the AC adapter. *2: As per JIS C 1604-1997 (ITS-90). IPTS-68 may be selected through internal settings (DIP switch). *3: Excitation current: If less than 0.1 mA to 0.5 mA, then add [0.025/Is (mA)]Ω or [0.06/Is (mA)] °C *4: As per JIS C 1602-1995 (ITS-90) (L and U are DIN specs).

K, E, J, T, N, R, S, and B may be switched to IPTS-68 through internal settings (DIP switch) (L and U are not switched).

*5: Frequency (interval between one pulse and another) and amplitude during pulse cycle generation may have the same range as during frequency

generation.

1 V 0 to 1.1000 V ± (0.02%+0.1 mV) 0.1 mV Maximum output: 5 mA 10 V 0 to 11.000 V ± (0.02%+1 mV) 1 mV Maximum output: 10 mA 30 V 0 to 30.00 V ± (0.02%+10 mV) 10 mV Maximum output 10 mA *1 20 mA 0 to 24.000 mA 1 µA 4-20 mA 4/8/12/16/20 mA

Pt100 *2 -200.0 to 850.0 °C JPt100 -200.0 to 500.0 °C

K -200.0 to 1372.0 °C

E -200.0 to 1000.0 °C

J -200.0 to 1200.0 °C

T -200.0 to 400.0 °C N -200.0 to 1300.0 °C L -200.0 to 900.0 °C U -200.0 to 400.0 °C

B 600 to 1800 °C

500 Hz 1.0 to 500.0 Hz ± 0.2 Hz 0.1 Hz

1000 Hz 90 to 1100 Hz ± 1 Hz 1 Hz 10 kHz 0.9 kHz to 11.0 kHz ± 0.1 kHz 0.1 kHz

Pulse cycle *5

0 to 1768 °C

1 to 99999 cycles － 1 cycles

MEAURE unit: Range and Accuracy

Parameter Reference Range

100 mV 0 to ±110.00 mV ± (0.025% + 20 µV)

DC voltage

DC current

Resistance 400 Ω 0 to 400.00 Ω ± (0.05% + 0.1 Ω)

AC voltage

Frequency, pulse

Temperature coefficient: Accuracy shown above × (1/5)/ °C

1 V 0 to ±1.1000 V ± (0.025% + 0.2 mV)

10 V 0 to ±11.000 V ± (0.025% + 2 mV)

100 V 0 to ±110.00 V ± (0.05% + 20 mV)

20 mA 0 to ±24.000 mA ± (0.025% + 4 µA)

100 mA 0 to ±100.00 mA ± (0.04% + 30 µA)

1 V 0 to 1.100 V

10 V 0 to 11.00 V

100 V 0 to 110.0 V

300 V 0 to 300 V ± (0.5% + 2 dgt)

100 Hz 1.00 to 100.00 Hz

1000 Hz 1.0 to 1000.0 Hz

10 kHz 0.001 to 11.000 kHz

CPM 1 to 99999 CPM

CPH 1 to 99999 CPH

Accuracy (23±5 °C per year)

± (0.025%+3 µA)

± (0.025%+0.3 °C) 0.1 °C

± (0.02%+0.5 °C) (-100 °C or greater) ± (0.02%+1 °C) (-100 °C or less)

± (0.02%+0.5 °C) (0 °Cor greater) ± (0.02%+1 °C) (0 °C or less)

± (0.02％+2.5 ° C) (100 °C or less) ± (0.02％+1.5 ° C) (100 °C or greater)

± (0.02％+2 °C) (1000 °C or less) ± (0.02％+1.5 ° C)

(1000 °C or greater)

Reso lution Remarks

4 mA

0.1 °C

1 °C

Accuracy: ±(reading percentage plus µV, mV, µA, Ω or dgt (digit))

Accuracy (23±5 °C per year)

± (0.5% + 5 dgt)

± 2 dgt

Resolution Remarks

10 µV

0.1 mV

1 mV

0.01 V

1 µA

10 µA

0.01 Ω

1 mV

0.01 V

0.1 V

1 V

0.01 Hz

0.1 Hz

0.001 kHz

1 CPM

1 CPH

Maximum load: 12 V

Excitation current: 0.5 to 5 mA *3 If 0.1 mA, add 0.25 Ω or 0.6°C. Subject device input capacitance: 0.1 µF or less

TC generation accuracy does not include RJ sensor accuracy.

< RJ sensor specs > Measurement range: -10 to 50 °C Accuracy (when combined with main unit) 18 to 28°C: ±0.5°C Other than the above: ±1°C

Output voltage: +0.1 to 15 V (zero base waveform) Amplitude accuracy: ±(5% + 0.1 V) Maximum load current: 10 mA Contact output (With 0.0 V amplitude setting, FET switch ON/OFF) Maximum open/close voltage/current: +28 V/50 mA

Input resistance: 10 MΩ or greater

Input resistance: Approximately 1 MΩ

Input resistance: Approximately 14 Ω

Accuracy during 3-wire measurement Input resistance: Approximately 10 MΩ//10 pF Input resistance: Approximately 1 MΩ//10 pF Maximum input: 30 V peak Input resistance: 200 kΩ or greater Sensitivity: 0.5 V peak or greater Contact input: Maximum 100Hz Notes CPM: Counts per minute CPH: Counts per hour

Input frequency: 45 to 65 Hz Input voltage range Measurement method: Average value rectification

: 10 to 100%

<<Contents>> <<Index>>

MEAURE unit (temperature): Range and Accuracy

Parameter Reference Range Accuracy (23±5 °C per year) Resolution Remarks

K E J T

TC *7

RTD

Temperature coefficient: Accuracy shown above × (1/5)/°C *6: As per JIS C 1604-1997 (ITS-90). IPTS-68 may be selected through internal settings (DIP switch). *7: As per JIS C 1602-1995 (ITS-90) (L and U are DIN specs).

K, E, J, T, N, R, S, and B may be switched to IPTS-68 through internal settings (DIP switch) (L and U are not switched).

N L U R S B Pt100 *6 JPt100

-200.0 to 1372.0 °C

-200.0 to 1000.0 °C

-200.0 to 1200.0 °C

-200.0 to 400.0 °C

-200.0 to 1300.0 °C

-200.0 to 900.0 °C

-200.0 to 400.0 °C 0 to 1768 °C 0 to 1768 °C 600 to 1800 °C

-200.0 to 850.0 °C

-200.0 to 500.0 °C

± (0.05% + 1.5 °C) (-100 °C or greater)

± (0.05% + 2 °C) (-100 °C or less)

± (0.05% + 2 °C) (100 °C or greater) ± (0.05% + 3 °C) (100 °C or less)

± (0.05% + 6 °C) 0.1 °C

(CA71 only) Accuracy: ±(reading percentage plus °C)

0.1 °C

1 °C

Accuracy during 3-wire measurement

General Specifications

Parameter Specification

SOURCE unit response time

SOURCE unit voltage limiter Approximately 32 V

SOURCE unit current limiter Approximately 25 mA

Divided output (n/m) function Output = setting × (n/m) n= 0 to m; m = 1 to 19; n ≤ m

Auto-step output function n value sent automatically when n/m function is selected (two options: approximately 2.5

Sweep function Sweep time (two options: approximately 16 seconds or approximately 32 seconds)

Memory function 50 sets of data (generated and measured values are stored as value sets with the same address (up

MEASURE unit maximum input Voltage terminal: 300V DC/AC

Current terminal input protection Fuses: 125 mA/250 V

MEASURE unit ground voltage Maximum 300 V AC

Measurement display updating rate Approximately once per second

Serial interface Enables when communication cable (RS-232) is connected; sold separately as optional accessory

Display Segment LCD (approximately 76 mm × 48 mm)

Backlight LED backlight; auto-off after one minute (from when LIGHT key is turned on)

Power supply Four AA-size (LR6) alkaline batteries, or special AC adapter (sold separately)

Battery life

Consumed power Approximately 7 VA (using 100 V AC adapter)

Auto-power-off function Approximately 10 minutes (auto-power-off can be disabled through a DIP switch setting)

Standard safety IEC61010-1, EN61010-2-031

Applicable standards

Insulation resistance Across input terminal and output terminal, 500V DC, 50 MΩ or greater

Withstand voltage Across input terminal and output terminal, 3.7 kV AC, for one minute

Operating temperature and humidity ranges Storage temperature and humidity ranges External dimensions (WHD) Approximately 190 × 120 × 55 mm

Wight Approximately 730 g (including batteries)

Emission

EMC

Immunity EN61326 Annex B

Approximately 1 second (time between start of voltage change and when voltage enters accuracy range)

seconds/step or approximately 5 seconds/step)

to 50 sets of data can be stored))

Current terminal: 120 mA DC

(CA71 only)

Measurement off, output 5 V DC/10 kΩ or greater: Approximately 40 hours Simultaneous signal generation/measurement, output 5 V DC/10 kΩ or greater: Approximately 20 hours Simultaneous signal generation/measurement, output 20 mA/5 V: Approximately 12 hours (using alkaline batteries, with backlight off)

EN61236-1 Class B, EN61000-3-2, EN61000-3-3 EN55011: Group1, Class

0 to 50 °C, 20 to 80% RH (no condensation)

-20 to 50 °C, 90% RH or less (no condensation)

<<Contents>> <<Index>>

 HARDWARE BLOCK DIAGRAM

MEASURE Mode

DC/DC converter

Sectio n

converter

Measurement mode on/o ff sw itch

Constant current source

em p era ture

sensor

Power-on/off switch

A C ada pter

MEAS U RE

3Wire3WFU S E m A

Input

selector &

voltage

divi der

Shunt resistor

B atte rie s

AC 100V

RJ detection circuit

Power supply circuit

 EXTERNAL DEMENSIONS

A/D

SOURCE Mod e Sectio n

Reference voltage

Ω

Display

Memory

CPU

Multiplying

D/A

con verter

S e ttin g

DIP

C ur ren t-to - vo l tag e conversion

converter

sw itch

A/D

Output on/of

Ω

Tem pe ratu re sensor

(approx. inches)

f rela y

Pulse source

Overcurrent detection

Unit: mm

SOURCE

RJ INPUT

Communication cabl e

193 (7.61)

) 3 7

. 4

( 0

2 1

54.5 (2.15) 51 (2.01)

Note: This figure shows the CA71, but there is no difference in exterior from the CA51.

) 9 4

. 4

( 8

. 3 1 1

<<Contents>> <<Index>>

 MODEL

Model Name Remarks

CA51 CA51 HANDY CAL calibrator Basic model

CA71 CA71 HANDY CAL calibrator

Provided with temperature measurement and communication functions

Standard accessories:

Lead cables for source (generation) (one red, two black): 98020

Lead cables for measurement (one red, one black): RD031

Carrying case: 93016

Terminal adapter: 99021

User’s manual: IM CA71-E

Fuse: A1501EF for current terminal input protection

Four AA-size (LR6) alkaline batteries: A1070EB × 4

 ORDERING INSTRUCTIONS

When ordering, specify the model and necessary/unnecessary of QIC.

 OPTIONAL ACCESSORIES AND SPARE PARTS

Optional Accessories

Model Product Remarks

A1020UP AC adapter AC adapter for 100 V AC power supply

A1022UP AC adapter AC adapter for 120V AC power supply

B9108WB AC adapter AC adapter for 220 to 240 V AC power supply

B9108WA RJ sensor Sensor for reference junction compensation

B9108XA Accessories case Lead cable, RJ sensor and the like can be stored.

91017 Communication cable 9-pin D-sub

Spare Parts

Model Product Remarks

98020 Lead cables for source (generation) One red, two black

RD031 Lead cables for measurement One red, one black

93016 Carrying case

99021 Terminal adapter Used when measuring temperatures

A1501EF Fuse

Lead cables for source (generation)/measurement, terminal adapter, four spare batteries, fuse, AC adapter and User’s manuals can be stored.

For current terminal input protection (sold by the ten pieces)

Yokogawa CA71 Data sheet

Specifications and Main Features

Frequently Asked Questions

User Manual