TES PROVA-135 4-20mA Loop Calibrator + Thermometer
- 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.
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 | 1μA | ± 0.025% ±10μA |
| 4~20mA | 1μA | ± 0.025% ±5μA |
| 20~24mA | 1μA | ± 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 |
Frequency SOURCE (TTL, Square wave, Duty cycle = 1~99%）
| Range（Hz） | 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) |
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