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HT824 - Process Calibrator

HT824 multifunctional process calibrator has high accuracy, high stability, can be widely used in site calibration of industry instruments and equipment in laboratory. Powerful functions, it can simulate to output voltage in millivolt and volt, current in milliampere, and many types of electric signals needed by the measurement and control during industry control process. It can also test or simulate kinds of TC and RTD signals.

Features 

  • HT824 multifunctional process calibrator has high accuracy, high stability, can be widely used in site calibration of industry instruments and equipment in laboratory. Powerful functions, it can simulate to output voltage in millivolt and volt, current in milliampere, and many types of electric signals needed by the measurement and control during industry control process. It can also test or simulate kinds of TC and RTD signals.
  • 5 1/2 digit input/output display. 
  • Manual/auto cold junction compensation and setting.
  • The temperature value can be directly measured/output.
  • Auto power off when the voltage of battery is low.
  • Apply advanced built-in battery management system. 7.4V/7800mAh lithium battery, which can easily last for over 8 hours during site measurement work.
  • Auto triangular wave/step wave signal output.
  • It can store 8 sets of measurement and output data, and recall it to display. All the setting value and the function in the last operation can be saved automatically after power-off.
  • The screen shows the connection diagram of probes and plugs to avoid wrong operation. It has backlight.
  • The output has manual/auto step and slope output function. It can arbitrarily set the value of 0%, 25%, 100% in the range of signal output to test the response speed of transmitter. 
  • Application field: measurement and calibration of instruments, maintenance and overhaul of temperature instruments, automatically maintenance and overhaul, project construction debugging, detection and diagnosis of control system signal source, configuration of site instrument repairmen room, matching of the thermal engineering laboratory in electric power industry. 


Relative Pictures.













Accessory


Specification.

Model

HT824

DC Voltage Measurement

Range

0-30.000VUpper part of screen*1

0-24.000VBottom of screen*2

0-90.000mV 

Resolution

0.001V

0.001V

0.001mV

Accuracy

0.1%+5

0.05%+5

0.05%+5

*1*2Input resistance is greater than 1MΩ

DC Voltage Output

Range

0—20.000V

0—90.000mV

Resolution

0.001V

0.001mV

Accuracy

0.05%+5

0.05%+5

Millivolt measurement and output*1

Range

-10.000mV—80.000mV

Resolution

0.001mV

Accuracy

0.05%+5

*1 Press TC(16) to select this function. Signal is at thermocouple micro input/output TC port.

DC Current (milliampere) Measurement

Range

0—24.000mAUpper part of screen*1

0—24.000mABottom of screen*2

Resolution

0.001mA

0.001mA

Accuracy

0.05%+5

0.05%+5

DC Current (milliampere) Output

Range

0—24.000mA

Resolution

0.001mA

Accuracy

0.05%+5

SIMUSimulationWhen outputting current, external voltage is greater than 12V, less than 28V.

SOURSourceWhen outputting current, signal driving ability is 1000Ω in 20mA.

Resistance Measurement

Ohm Range

 

0—400.00Ω

400.0—4000.0Ω

Accuracy ±Ω

4 Wire4W

0.02%+5

0.02%+5

2 Wire2Wand 3 Wire3W

0.05%+5

0.05%+5

Excitation current0.2mA

Maximum input voltage30V

2 WireDo not include wire resistance.

3 WireAssume to use the matched testing wire, the total resistance cannot be greater than 100Ω.

Resistance output

Range

5.00Ω―400.00Ω

400.0―1500.0Ω

Excitation current from the measurement instrument

0.15mA-2mA

0.05mA-0.8mA

Accuracy ±Ω

0.05%+5

0.05%+5

Resolution

0.1Ω

0.1Ω

Temperature - Thermocouple

Type

Range

Resolution

Measurement and output accuracy ±

S

-50.0 to 0

0.1/0.1

2

0 to 500.0

0.1/0.1

1.5

500.0 to 1760.0

0.1/0.1

1.3

R

-50.0 to 0

0.1/0.1

2

0 to 500.0

0.1/0.1

1.5

500.0 to 1760.0

0.1/0.1

1.3

B

200 to 800

1/1

2.5

800 to 1800

1/1

2.3

K

-200.0 to 1370.0

0.1/0.1

1.3

N

-200.0 to 1300.0

0.1/0.1

1.3

E

-200.0 to 1000.0

0.1/0.1

1

J

-200.0 to 1200.0

0.1/0.1

1

T

-200.0 to 400.0

0.1/0.1

1

Thermocouple adopts ITS-90

If open cold junction compensation, there should be additional ±0.5

Temperature – Thermal resistance

Type

 

                  Accuracy ±

Range

Testing 4 wire

Testing 2 wire and 3 wire

Output

Pt100-385

-200.0-850.0

0.8

1

0.8

Pt100-3926

-200.0-850.0

0.8

1

0.8

Pt100-JIS

-200.0-850.0

0.8

1

0.8

Pt200-385

-200.0-250.0

0.7

0.8

0.7

250.0-630.0

1.3

2.1

1.3

Pt500-385

-200.0-500.0

0.8

1.1

0.8

500.0—630.0

1

1.5

1

Pt1000-385

-200.0-100.0

0.7

0.7

0.8

100.0-630.0

0.7

0.8

0.8

Cu100

-50.0-150.0

1

1.2

1

Cu50

-50.0-150.0

1

1.2

1

Resolution: 0.1°C, 0.1°F

Allowable excitation current(output): Pt100-385, Pt100-392, Pt100-JIS, Pt200-385:0.15 to 3.0 mA

Pt500-385:0.05 to 0.80mA;Pt1000-385:0.05 to 0.40mA

2 WireDo not include wire resistance.

3 WireAssume to use the matched testing wire, the total resistance cannot be greater than 100Ω.

Comprehensive Index

Operation temperature

0 to 50

Storage temperature

-20 to 70

Operation  height

Average elevation 3000 meters below.

Relative humidity (No condensation relative work humidity %)

75%(30 to 40)

45%(40 to 50)

35%(50 to 55)

<10, no control

Stability

Out of the range 23±5, each degree increase ±0.005% of the range.

Vibration

The random vibration, 2g,5 to 500Hz

Security

EN 61010-1:1992

Protection Level

Pollution grade

Model

HT824

DC Voltage Measurement

Range

0-30.000VUpper part of screen*1

0-24.000VBottom of screen*2

0-90.000mV 

Resolution

0.001V

0.001V

0.001mV

Accuracy

0.1%+5

0.05%+5

0.05%+5

*1*2Input resistance is greater than 1MΩ

DC Voltage Output

Range

0—20.000V

0—90.000mV

Resolution

0.001V

0.001mV

Accuracy

0.05%+5

0.05%+5

Millivolt measurement and output*1

Range

-10.000mV—80.000mV

Resolution

0.001mV

Accuracy

0.05%+5

*1 Press TC(16) to select this function. Signal is at thermocouple micro input/output TC port.

DC Current (milliampere) Measurement

Range

0—24.000mAUpper part of screen*1

0—24.000mABottom of screen*2

Resolution

0.001mA

0.001mA

Accuracy

0.05%+5

0.05%+5

DC Current (milliampere) Output

Range

0—24.000mA

Resolution

0.001mA

Accuracy

0.05%+5

SIMUSimulationWhen outputting current, external voltage is greater than 12V, less than 28V.

SOURSourceWhen outputting current, signal driving ability is 1000Ω in 20mA.

Resistance Measurement

Ohm Range

 

0—400.00Ω

400.0—4000.0Ω

Accuracy ±Ω

4 Wire4W

0.02%+5

0.02%+5

2 Wire2Wand 3 Wire3W

0.05%+5

0.05%+5

Excitation current0.2mA

Maximum input voltage30V

2 WireDo not include wire resistance.

3 WireAssume to use the matched testing wire, the total resistance cannot be greater than 100Ω.

Resistance output

Range

5.00Ω―400.00Ω

400.0―1500.0Ω

Excitation current from the measurement instrument

0.15mA-2mA

0.05mA-0.8mA

Accuracy ±Ω

0.05%+5

0.05%+5

Resolution

0.1Ω

0.1Ω

Temperature - Thermocouple

Type

Range

Resolution

Measurement and output accuracy ±

S

-50.0 to 0

0.1/0.1

2

0 to 500.0

0.1/0.1

1.5

500.0 to 1760.0

0.1/0.1

1.3

R

-50.0 to 0

0.1/0.1

2

0 to 500.0

0.1/0.1

1.5

500.0 to 1760.0

0.1/0.1

1.3

B

200 to 800

1/1

2.5

800 to 1800

1/1

2.3

K

-200.0 to 1370.0

0.1/0.1

1.3

N

-200.0 to 1300.0

0.1/0.1

1.3

E

-200.0 to 1000.0

0.1/0.1

1

J

-200.0 to 1200.0

0.1/0.1

1

T

-200.0 to 400.0

0.1/0.1

1

Thermocouple adopts ITS-90

If open cold junction compensation, there should be additional ±0.5

Temperature – Thermal resistance

Type

 

                  Accuracy ±

Range

Testing 4 wire

Testing 2 wire and 3 wire

Output

Pt100-385

-200.0-850.0

0.8

1

0.8

Pt100-3926

-200.0-850.0

0.8

1

0.8

Pt100-JIS

-200.0-850.0

0.8

1

0.8

Pt200-385

-200.0-250.0

0.7

0.8

0.7

250.0-630.0

1.3

2.1

1.3

Pt500-385

-200.0-500.0

0.8

1.1

0.8

500.0—630.0

1

1.5

1

Pt1000-385

-200.0-100.0

0.7

0.7

0.8

100.0-630.0

0.7

0.8

0.8

Cu100

-50.0-150.0

1

1.2

1

Cu50

-50.0-150.0

1

1.2

1

Resolution: 0.1°C, 0.1°F

Allowable excitation current(output): Pt100-385, Pt100-392, Pt100-JIS, Pt200-385:0.15 to 3.0 mA

Pt500-385:0.05 to 0.80mA;Pt1000-385:0.05 to 0.40mA

2 WireDo not include wire resistance.

3 WireAssume to use the matched testing wire, the total resistance cannot be greater than 100Ω.

Comprehensive Index

Operation temperature

0 to 50

Storage temperature

-20 to 70

Operation  height

Average elevation 3000 meters below.

Relative humidity (No condensation relative work humidity %)

75%(30 to 40)

45%(40 to 50)

35%(50 to 55)

<10, no control

Stability

Out of the range 23±5, each degree increase ±0.005% of the range.

Vibration

The random vibration, 2g,5 to 500Hz

Security

EN 61010-1:1992

Protection Level

Pollution grade


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