Resistive material moisture meter for wood and building materials

GMH 38XX

Material moisture meter for wood and building materials, measuring 0.0 ... 100 % u and 0.0 ... 50 % w across 494 material characteristics, with temperature input, dual LCD display and serial or 0 ... 1 V output (not GMH 3810).

Introduction

For timber processing, building inspection and material quality checks, direct moisture readings save time and reduce correction work. The device displays absolute moisture for 494 material types and can automatically convert values to water content, removing the need for separate calculation tables.

It supports precision measurements in cut wood, chip board, veneer, sawdust, straw, hay, concrete, bricks, plaster, cement mortar, paper, carton and textiles. Resistive material moisture measurement according to DIN EN 13183-2:2002 and device accuracy of \pm0.2 % material moisture support dependable assessment in professional applications.

For documentation-led work, the GMH 3851 adds an integrated data logger with up to 10,000 cyclic data sets and 4 freely programmable material curves. Serial interface or freely scalable 0 ... 1 V analog output makes the measured data available for PC-based evaluation.

GMH 3810 is the compact one hand version with integrated needles.

Wide material scope
Wide material scope
Direct moisture display for 494 material characteristics, covering wood, building materials and textiles.
Reliable accuracy
Reliable accuracy
Supports professional checks with up to 0.2 % material moisture device accuracy. Easy eter check with reference GPAD 38
Flexible data output
Flexible data output
Serial interface or freely scalable 0 ... 1 V analog output for PC connection. (not GMH 3810)
Logger option
Logger option
GMH 3851 records up to 10,000 measuring values for material state documentation.

Features

Moisture measurement principle

The device uses resistive material moisture measurement according to DIN EN 13183-2:2002 for wood and building materials.

Water content conversion

Absolute moisture values can be automatically converted to water content, depending on the selected characteristic.

Temperature input

External temperature measurement uses a thermocouple NiCr-Ni type K connection, with internal temperature compensation. Specialized probe available: GTF38

Material rating display

A 9-step moisture rating from dry to wet provides an additional assessment of the measured material.

Programmable curves (GMH 3850 only)

The GMH 3851 stores 4 user-specific characteristics with 20 interpolation points per curve, edited via GMHKonfig software.