The Delmhorst PX-30 is a paper moisture meter. It is calibrated for kraft paper from 4.3% to 18% moisture content and for baled scrap paper from 5% to 40%, with a 0 to 100 reference scale for other materials where no calibration exists.
This is a different instrument from a building meter. Paper moisture sits in a much narrower band, and the consequences of getting it wrong are curl, cracking, poor ink adhesion and jammed presses rather than structural damage. The calibration is what makes it useful.
What is in this package
- PX-30 meter
- Hard carrying case
- H-4 electrode
Specifications
| Kraft paper | 4.3% to 18% MC |
| Baled scrap paper | 5% to 40% MC |
| Reference scale | 0 to 100 for uncalibrated materials |
| Temperature correction | Baled and scrap scales |
| Stored readings | Up to 100, with high, low, average and standard deviation |
| Connectivity | Bluetooth to the Delmhorst EDGE app |
| LEDs | Colour coded, adjustable in the app |
| Alarm | Set point at a user-selected moisture content |
| Power | 2 × AA alkaline |
| Electrodes | Compatible with existing Delmhorst probes and electrodes |
| Warranty | 2 years on manufacturing defects |
Frequently asked questions
Can I use a building moisture meter on paper?
Not meaningfully. A wood scale reads paper as a number, but it is not calibrated for it, so the figure has no defensible relationship to actual moisture content. If paper moisture matters commercially, use a meter calibrated for paper.
What is the reference scale for?
Materials with no published calibration — board, composites, unusual stock. It gives a relative number you can track over time or compare between samples, but it is not a moisture percentage.
Why does the alarm matter in a paper environment?
Because the acceptable band is narrow. Setting an alert at the threshold means an operator checking a pallet does not have to interpret the number — the meter tells them when stock is out of specification.
Support and warranty
Carpet Cleaners Warehouse is the exclusive Australian distributor for Delmhorst outside the agricultural sector. Service, calibration questions and warranty claims are handled here rather than sent overseas, and we hold electrodes and pins in stock.
Two year warranty on manufacturing defects. This does not exclude, restrict or modify your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage.
What we see in the field
Paper testing gets messy when someone treats a bale, a thick core and a loose sheet as though they're the same material. Choose the right calibration and sample more than the exposed outside; that's where storage conditions can fool you. If the paper is valuable or historic, discuss the probe marks before testing.
Documents
- PX-20 and PX-30 owner’s manual, 05.2024 (PDF)
- PX series brochure (PDF)
- Delmhorst quick start guide (PDF)
Not sure which package or electrode suits your work? Tell us what you are reading — timber floors, wall cavities, concrete, cladding — and we will tell you what you actually need. More in Moisture Meters.
