1. Introduction
The HoldPeak HP-36D is a portable digital capacitance meter designed for easy operation and accurate numerical readings. It features a large LCD display and is powered by a 9V battery. This meter is suitable for a wide range of applications including error testing, numerical analysis, selecting and matching capacitance, and measuring unknown capacitance in cables, switches, and printed circuits.
Figure 1: HoldPeak HP-36D Digital Capacitance Meter and included accessories.
Figure 2: Professional manual range capacitance tester suitable for various applications.
2. Safety Information
Always observe basic safety precautions when using this device to reduce the risk of fire, electric shock, or personal injury. Read all instructions before use.
- Do not attempt to measure capacitance on circuits that are powered or have stored charge. Always discharge capacitors before testing.
- Ensure test leads are in good condition, without cracked or broken insulation.
- Do not operate the meter if it appears damaged or is not functioning properly.
- Keep the device dry and away from extreme temperatures.
3. Product Overview
3.1 Panel Layout
Figure 3: Front Panel Layout of the HP-36D Digital Capacitance Meter.
- LCD Display: Shows measurement readings and indicators.
- HOLD Button: Freezes the current reading on the display.
- Backlight Button: Activates/deactivates the display backlight.
- Function Switch (Rotary Dial): Selects the capacitance measurement range or turns the meter OFF.
- ZERO Button: Used to zero out residual capacitance before measurement.
- Cx+, Cx- Input Jacks: Connect test leads for capacitance measurement.
3.2 Features
- Digital Display: 1999 counts LCD.
- Manual Range Selection: Offers 9 measuring sections from 0.1pF to 20,000uF.
- Data Hold Function.
- Backlight for low-light conditions.
- Low-consumption design.
- Integrated back bracket for convenient viewing.
Figure 4: Key features including the back bracket and 9V battery compartment.
4. Setup
4.1 Battery Installation
The HP-36D meter requires one 9V battery (NEDA 1604 or 6F22 type) for operation. The battery is typically included.
- Ensure the meter is OFF by rotating the Function Switch to the "OFF" position.
- Locate the battery compartment cover on the back of the meter.
- Use a screwdriver (if necessary) to open the battery compartment.
- Insert a new 9V battery, observing the correct polarity (+ and -).
- Replace the battery compartment cover and secure it.
Figure 5: 9V Battery installation and the integrated stand mount.
4.2 Connecting Test Leads
Connect the red test lead to the Cx+ input jack and the black test lead to the Cx- input jack.
Figure 6: Test lead connection points (Cx+, Cx- Input Jacks).
5. Operating Instructions
5.1 Capacitance Measurement
- Ensure the capacitor to be measured is fully discharged before connecting it to the meter.
- Rotate the Function Switch to the desired capacitance range (e.g., 200pF, 2nF, 20nF, etc.). If the capacitance value is unknown, start with the highest range and work downwards until a stable reading is obtained.
- Press the "ZERO" button to clear any residual capacitance from the test leads. The display should show "000" or close to it.
- Connect the test leads to the terminals of the capacitor.
- Read the capacitance value directly from the LCD display.
Figure 7: Measuring a capacitor with the HP-36D meter.
5.2 Data Hold Function
To hold the current reading on the display, press the "HOLD" button. Press it again to release the hold and resume live measurements.
5.3 Backlight Function
In low-light conditions, press the backlight button (indicated by a light bulb icon) to illuminate the LCD display. Press it again to turn off the backlight.
Figure 8: Backlight function in use for improved visibility.
6. Maintenance
6.1 Cleaning
Wipe the meter with a dry, soft cloth. Do not use abrasives or solvents. Keep the input jacks free from dust and debris.
6.2 Battery Replacement
When the low battery indicator appears on the display, replace the 9V battery as described in Section 4.1. Remove the battery if the meter is not going to be used for an extended period to prevent leakage.
6.3 Storage
Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures. Keep it in its original packaging or a protective case when not in use.
7. Troubleshooting
- No Display: Check if the meter is turned ON. Verify battery installation and replace if necessary.
- Unstable Readings: Ensure the capacitor is fully discharged. Check test lead connections. Try a different measurement range.
- "OL" or Overload Indication: The measured capacitance exceeds the selected range. Switch to a higher range.
- Inaccurate Readings: Perform a zero adjustment before measurement. Ensure test leads are not damaged.
8. Specifications
Figure 9: Product parameters and technical specifications.
| Parameter | Value |
|---|---|
| Model Number | HP-36D |
| Display Type | Digital Display (1999 Counts) |
| Capacitance Range | 200pF/2nF/20nF/200nF/2uF/20uF/200uF/2000uF/20000uF |
| Operating Mode | Manual Range |
| Operating Temperature | 0 - 40 ℃ |
| Dimensions | 143 x 75 x 32 mm |
| Power Supply | 9V Battery |
| Weight | Approx. 200 grams (with battery) |
| Certification | CE |
| Low-battery display | Display symbol |
8.1 Capacitance Measurement Accuracy
| Range | Accuracy | Definition | Testing Frequency |
|---|---|---|---|
| 200pF | ±0.5% ±20digit | 0.1pF | 800Hz |
| 2nF | ±0.5% ±20digit | 1pF | 800Hz |
| 20nF | ±0.5% ±20digit | 10pF | 800Hz |
| 200nF | ±0.5% ±20digit | 0.1nF | 800Hz |
| 2uF | ±0.5% ±20digit | 1nF | 800Hz |
| 20uF | ±0.5% ±20digit | 10nF | 800Hz |
| 200uF | ±0.5% ±20digit | 0.1uF | 8Hz |
| 2000uF | ±2.0% ±20digit | 1uF | 8Hz |
| 20000uF | ±4.0% ±20digit | 10uF | 8Hz |
9. User Tips
- For best accuracy, always perform a zero adjustment by pressing the "ZERO" button before connecting the capacitor, especially when measuring small capacitance values.
- When measuring unknown capacitors, start with the highest range (20000uF) and gradually decrease the range until you get a stable and accurate reading.
- Utilize the backlight function in dimly lit workspaces to ensure clear visibility of the LCD display.
- The integrated back bracket allows for hands-free operation, making it easier to take measurements.
- This meter is particularly useful for identifying unknown capacitors, matching components for circuits, and diagnosing issues in electronic circuits and cables.
10. Warranty and Support
The HoldPeak HP-36D Digital Capacitance Meter comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use.
For technical support, warranty claims, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
