Mastech MS7221 Volt/mA Voltage Current Calibrator Instruction Manual

1. Киришүү

The Mastech MS7221 Volt/mA Calibrator is a precision instrument designed for sourcing and measuring DC voltage and current signals. This device is essential for testing, calibrating, and troubleshooting industrial process control systems, PLCs, and transmitters. It offers high accuracy for both measurement and output functions, making it a versatile tool for professionals in various fields.

2. Коопсуздук маалыматы

• Түзмөктү иштетүүдөн мурун бул колдонмону кылдат окуп чыгыңыз.
• Always observe local and national safety codes and regulations.
• Эгерде калибратор бузулгандай көрүнсө же туура эмес иштесе, аны иштетпеңиз.
• Ensure proper connection of test leads to avoid electrical shock or damage to the device.
• Do not exceed the maximum input ratings specified in this manual.
• The calibrator cannot be used for measurement and source simultaneously.

3. Продукт бүтүп калдыview

The Mastech MS7221 features a clear display, intuitive controls, and robust input/output terminals. Familiarize yourself with the components shown below.

Figure 1: Mastech MS7221 Front Panel. This image displays the front of the Mastech MS7221 Volt/mA Calibrator. Key features visible include the large digital display at the top, showing "OUTPUT 0.000 V". Below the display are the power button (circular, labeled with a circle and vertical line), and two function selection buttons: "V/mV" (yellow) and "mA/%" (yellow). Further down, there's an "INPUT/OUTPUT" button and four arrow buttons for navigation and value adjustment. At the bottom, various input and output terminals are visible: "+LOOP", "mA INPUT", "COM", and "V INPUT/OUTPUT". Each terminal is clearly labeled with its function and maximum voltage/учурдагы рейтингдер.

3.1. Башкаруу жана дисплей

• Дисплей: 24000 counts, shows measured or sourced values.
• Power Button (①): Аппаратты күйгүзөт/өчүрөт.
• V/mV Button: Selects voltage measurement or source mode.
• mA/% Button: Selects current measurement or source mode.
• INPUT/OUTPUT Button: Toggles between input (measurement) and output (source) functions.
• Arrow Buttons (▲, ▼): Adjust output values or navigate menus.

3.2. Киргизүү/чыгаруу терминалдары

• +LOOP: 24V loop supply output.
• mA INPUT: Current measurement input (Max 30V).
• COM: Common terminal for all measurements and sources.
• V INPUT/OUTPUT: Тtage measurement input and voltage source output (Max 30V).

4. Орнотуу

4.1. Батареяны орнотуу

1. Ensure the calibrator is powered off.
2. Аппараттын артындагы батарея бөлүкчөсүн табыңыз.
3. Open the compartment and insert the required batteries, observing correct polarity.
4. Батарея отсегин бекем жабыңыз.

4.2. Баштапкы күйгүзүү

Press the Power button (①) to turn on the device. The display will illuminate and show the default operating mode.

5. Иштөө нускамалары

The MS7221 can either measure or source signals, but not simultaneously.

5.1. DC Voltage (0-10 В)

1. Сыноо өткөргүчтөрүн туташтырыңыз V INPUT/OUTPUT жана COM терминалдар.
2. басыңыз V/mV том тандоо үчүн баскычtage режими.
3. басыңыз INPUT/OUTPUT button to ensure "INPUT" mode is selected.
4. Сыноо өткөргүчтөрүн томго туташтырыңызtagөлчөө үчүн булагы.
5. Томду окуңузtage мааниси дисплейде.

5.2. Sourcing DC Voltage (0-10 В)

1. Сыноо өткөргүчтөрүн туташтырыңыз V INPUT/OUTPUT жана COM терминалдар.
2. басыңыз V/mV том тандоо үчүн баскычtage режими.
3. басыңыз INPUT/OUTPUT button to ensure "OUTPUT" mode is selected.
4. колдонуу Жебе баскычтары (▲, ▼) to adjust the desired output voltage.
5. Connect the test leads to the device requiring the voltage киргизүү.

5.3. Measuring DC Current (0-24mA)

1. Сыноо өткөргүчтөрүн туташтырыңыз mA INPUT жана COM терминалдар.
2. басыңыз mA/% button to select current mode.
3. басыңыз INPUT/OUTPUT button to ensure "INPUT" mode is selected.
4. Connect the calibrator in series with the circuit where current is to be measured.
5. Дисплейдеги учурдагы маанини окуңуз.

5.4. Sourcing DC Current (0-24mA)

1. Сыноо өткөргүчтөрүн туташтырыңыз mA INPUT жана COM терминалдар.
2. басыңыз mA/% button to select current mode.
3. басыңыз INPUT/OUTPUT button to ensure "OUTPUT" mode is selected.
4. колдонуу Жебе баскычтары (▲, ▼) to adjust the desired output current.
5. Connect the test leads to the device requiring the current input.

5.5. 24V Loop Supply with Current Measurement

1. туташтыруу +LOOP terminal to the positive input of the device under test.
2. Connect the negative input of the device under test to the mA INPUT терминал.
3. туташтыруу COM terminal to the common ground of the system.
4. басыңыз mA/% button to select current mode.
5. басыңыз INPUT/OUTPUT button to ensure "INPUT" mode is selected.
6. The display will show the current flowing through the loop.

6. Техникалык тейлөө

6.1. Тазалоо

Жарнак менен түзмөктү тазалаңызamp cloth and mild detergent. Do not use abrasive cleaners or solvents. Ensure the device is powered off and disconnected from all circuits before cleaning.

6.2. Сактоо

Store the calibrator in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.

6.3. Батареяны алмаштыруу

When the low battery indicator appears on the display, replace the batteries as described in Section 4.1. Use only the specified battery type.

7. Кыйынчылыктарды

8. Техникалык шарттар

9. Кепилдик жана колдоо

Mastech products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official Mastech webсайт. Кепилдик дооматтар үчүн сатып алганыңыздын далилин сактаңыз.