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PROVA-135

4-20mA Loop Calibrator + Thermometer

Product Features
  • Source 4~20mA, 0~24mA with 1μA resolution (1KΩ load, 24V loop supply), basic accuracy 0.025%.
  • Source 0~24.000V with 1mV resolution.
  • Source frequency 1~20000Hz square wave with programmable duty cycle (1~99%).
  • Auto step and auto ramp for sourcing mA, V.
  • Easy fixed 25% up and down, or programmable percentage (1~99%) increase and decrease (mA, V).
  • Measure DC mA with loop power (24V output).
  • Measure DC V.
  • Measure Temperature (°C, °F) of 11 types of thermocouples (K, J, E, T, R, S, N, L, U, B and C).
  • Calibrator grade precision temperature measurement with 0.1*C & 0.1*F resolution.
  • Detection of thermocouples disconnection.
  • Source and Measure at the same time.
  • Warning for overload, output open (mA) or short (V).
  • Short circuit protection for output.
  • Battery power indication (%) when turn on the calibrator.

    Applications:
  • Calibration of 4~20mA panel meters.
  • LED brightness testing (0~24mA).
  • Temperature calibration of panel meters or instruments for 11 types of thermocouples.
4-20mA Loop Calibrator + Thermometer

Electrical Specifications:
(23+/- 5°C, 10 minutes after turning on the power)

 

DC mA SOURCE (Max. load 1KΩ, Max. voltage supply 24V

Range

Resolution

Accuracy

0~4mA

A

± 0.025% ±10μA

4~20mA

A

± 0.025% ±5μA

20~24mA

A

± 0.025% ±5μA

When output Open, the LCD displays “OL”.                                                                                                           

DC V SOURCE (Max. load 24mA, Short circuit protection < 25mA)

Range

Resolution

Accuracy

0~4V

1mV

± 0.05% ± 10mV

4~20V

1mV

± 0.05% ±5mV

20~24V

1mV

± 0.05% ±5mV

When output Short circuit, the LCD displays “OL”.

 

Frequency SOURCE (TTL, Square wave, Duty cycle = 1~99%

RangeHz

Resolution

Accuracy

1.0~1000.0Hz

0.1Hz

0.1Hz

1000~10000Hz

1Hz

1Hz

10000~20000Hz

1Hz

10Hz

 

DC mA MEASURE

Range

Resolution

Accuracy

0.005~4mA

1μA

±0.025%±5dgts

4~20mA

1μA

±0.025%±5dgts

20~24mA

1μA

±0.025%±5dgts

If reading of mA (measure) is less than 5 digits, it is displayed as 0.

 

DC V MEASURE

Range

Resolution

Accuracy

0~24V

0.001V

±0.025%±5dgts

If reading of V (measure) is less than 5 digits, it is displayed as 0.

 

 

Temperature of Thermocouples (MEASURE)

(Resolution 0.1C&0.1F, Internal cold junction compensation, Thermocouples

accuracy not included, 3 minutes after plugging in thermocouples.)

 

 

°C

°F

Range

Accuracy

Range

Accuracy

K

-200 to -150

2.0

-382 to -238

3.6

-150 to 0

1.2

-238 to 32

2.1

0 to 1000

0.8

32 to 1832

1.4

1000 to 1370

1.2

1832 to 2498

2.1

J

-200 to -150

2.0

-382 to -238

3.6

-150 to 0

1.0

-238 to 32

1.8

0 to 1050

0.7

32 to 1922

1.2

E

-200 to -150

1.5

-382 to -238

2.7

-150 to 0

0.9

-238 to 32

1.6

0 to 850

0.7

32 to 1562

1.2

T

-200 to -150

1.5

-382 to -238

2.7

-150 to 0

1.2

-238 to 32

2.1

0 to 400

0.8

32 to 752

1.4

R

0 to 500

1.8

32 to 932

3.2

500 to 1760

1.5

932 to 3200

2.7

S

0 to 500

1.8

32 to 932

3.2

500 to 1760

1.5

932 to 3200

2.7

N

-200 to 0

1.5

-328 to 32

2.7

0 to 1300

0.9

32 to 2372

1.6

L

-200 to 0

0.9

-328 to 32

1.6

0 to 900

0.7

32 to 1652

1.2

U

-200 to 0

1.1

-328 to 32

1.9

0 to 600

0.7

32 to 1112

1.2

B

600 to 800

2.2

1112 to 1472

3.9

800 to 1000

1.8

1472 to 1832

3.2

1000 to 1820

1.4

1832 to 3308

2.5

C

0 to 1800

1.0

32 to 3272

1.8

1800 to 2310

1.5

3272 to 4190

2.7

 

 General Specifications: 

Dimension

214.0 (L) x 98.7(W) x 56.0(H) mm

8.4" (L) x 3.9" (W) x 2.2" (H)

Weight

650g / 22.9oz (batteries included)

Operation Environment

0°C ~ 50°C

< 85% RH

Storage Environment

-20°C ~ 60°C

< 75% RH

Accessories

Carrying case x 1

User manual x 1

1.5V SUM-3 Battery x 5

K-type thermocouples (1M, single plug) x 1

Alligator clips x 2 (black and red)

Test leads x 2 (black and red)