1. Introduction
The Delmhorst P-2000 is an electrical resistance type moisture meter specifically designed for accurate measurement of moisture content in various paper materials. This device offers three distinct scales for different applications: standard paper, baled scrap paper, and a general reference scale. Its robust design and user-friendly features make it an essential tool for professionals requiring precise moisture readings.
Key features include built-in contact pins for direct measurement, an audible out-of-range alarm, an internal calibration check function, a memory capacity for 100 data points, and the ability to display average and maximum readings.
2. Safety Information
- Always handle the meter with care to prevent damage.
- The contact pins are sharp. Exercise caution to avoid injury.
- Do not expose the meter to extreme temperatures, high humidity, or corrosive environments.
- Keep the meter away from water and other liquids to prevent electrical shock or damage.
- Only use the specified 9V battery for power.
3. Product Overview

The image displays the Delmhorst P-2000 Digital Pin-Type Paper Moisture Meter. It is yellow with a digital display showing '11.0'. Two pin electrodes are visible at the top. Below the display are three blue buttons: one with a water droplet icon, one with an asterisk (*), and one with a hash (#) symbol, along with a checkmark button.
The Delmhorst P-2000 meter features a durable yellow casing. At the top, two contact pins provide 5/16 inch (0.8 cm) penetration for testing materials like paper tubes or corrugated stock. The front panel includes a clear digital display for moisture readings and several control buttons for operation and settings.
4. Setup
4.1 Battery Installation
- Locate the battery compartment cover on the back of the meter.
- Remove the cover.
- Insert one 9V alkaline battery, ensuring correct polarity.
- Replace the battery compartment cover securely.
5. Operating Instructions
5.1 Powering On/Off
- To power on the meter, press the designated power button (often indicated by a checkmark or similar symbol).
- To power off, press and hold the power button until the display turns off, or the meter may automatically shut off after a period of inactivity.
5.2 Selecting Measurement Scales
The P-2000 offers three scales. Use the appropriate button (e.g., the water droplet icon button) to cycle through the scales:
- Paper Scale: Measures moisture content from 4.3% to 18%.
- Baled Scrap Paper Scale: Measures moisture content from 5% to 40%.
- Reference Scale: Provides a relative reading from 0 to 100 for comparative purposes.
5.3 Taking Measurements
- Ensure the correct scale is selected for the material being tested.
- Carefully insert the contact pins into the material. Ensure good contact for accurate readings.
- Read the moisture content directly from the digital display.
5.4 Audible Out-of-Range Alarm
The meter is equipped with an audible alarm that activates when the measured moisture content falls outside the specified range for the selected scale. Refer to the display for specific error indicators or out-of-range messages.
5.5 Data Memory and Readings
- The meter can store up to 100 data points. Consult the meter's specific button functions (e.g., asterisk or hash button) for saving readings.
- Access stored data, average readings, and maximum readings using the appropriate control buttons as indicated in the meter's interface.
5.6 Internal Calibration Check
The P-2000 includes an internal calibration check feature to verify the meter's accuracy. Follow the instructions provided on the meter's display or in the quick start guide for performing this check.
6. Maintenance
6.1 Battery Replacement
Replace the 9V battery when the low battery indicator appears on the display to ensure continued accurate operation. Refer to section 4.1 for battery installation steps.
6.2 Cleaning
Wipe the meter's exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents. Ensure the contact pins are clean and free of debris for optimal performance.
6.3 Storage
When not in use, store the meter in its hard plastic carrying case in a cool, dry place. Remove the battery if the meter will not be used for an extended period to prevent leakage.
6.4 Electrode Care
The meter comes with contact pins (2497/A-100). For specific applications, optional pin electrodes can be used. Ensure all electrodes are clean and undamaged before use. Replace bent or corroded pins to maintain accuracy.
7. Troubleshooting
- No Display/Meter Not Turning On: Check battery installation and ensure the battery has sufficient charge. Replace if necessary.
- Inaccurate Readings: Verify that the correct scale is selected for the material. Ensure pins are making good contact with the material. Perform an internal calibration check.
- Audible Alarm Constantly On: The reading may be outside the selected scale's range. Re-evaluate the material or select a different scale if applicable.
- Pins Not Penetrating: Ensure the material is suitable for pin penetration. Do not force pins, as this may damage them or the meter.
8. Specifications
| Feature | Specification |
|---|---|
| Product Type | Moisture Meter |
| Measurement Type | Pin |
| Display | Digital |
| Power | One 9V battery (included) |
| Alarm | Yes (Audible out-of-range) |
| Paper Scale Range | 4.3% to 18% |
| Baled Paper Scale Range | 5% to 40% |
| Reference Scale Range | 0 to 100 |
| Data Memory | 100 data points |
| Product Dimensions | 10.5 x 7 x 3 inches |
| Item Weight | 0.8 Pounds |
| Voltage | 9 Volts |
| Mounting Type | Freestanding |
9. Warranty and Support
For warranty information, technical support, or service inquiries regarding your Delmhorst P-2000 moisture meter, please contact Delmhorst Instrument directly. Refer to the official Delmhorst Instrument website or product packaging for the most current contact details and warranty terms.