Wood Moisture
Structural Moisture

Drive-in Electrode
M 20

Ref.Nr. 31003300

Drive-in electrode for measuring wood moisture and structural moisture

DescriptionUsecases
DescriptionUsecases
M 20
M 20
M 20
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Description

The M 20 is a drive-in electrode for measuring wood moisture and building moisture. It is based on the resistance principle of measurement and can be connected to all corresponding measuring devices.

The electrode is suitable for measuring the moisture of sawn timber (up to 50 mm in thickness), chipboard or OSB, and parquet for example.
By means of a suitable impact device (e.g. a hammer), the electrode can also be driven into hard woods such as beech.

It can also be used for measurements in soft set building materials (e.g. plasters, gypsum or aerated concrete) as well as insulating materials.

Usecases

Wood Moisture Resistance

Wood moisture measuring of sawn timber, boards, chipboard and OSB boards as well as parquet up to a thickness of 50 mm

Structural Moisture Resistance

Measuring the moisture content in soft, set building materials e.g. plaster, gypsum or aerated concrete up to max. 70 mm measuring depth

Measuring ranges

Wood Moisture

Wood Moisture

The electrode can be used with all hydromettes based on the resistance measurement method.
Resistance-based measuring
Resistance-based measuring
Measuring ranges
min.4 to max.100 % (dry mass)
min.3.1 to max.41 % water content

The actual measuring range depends on the connected measuring instrument.

Show compatible measuring instruments
Structural Moisture

Structural Moisture

The electrode can be used with all hydromettes based on the resistance measurement method.
Resistance-based measuring
Resistance-based measuring
Measuring ranges
min.0 to max.87 digits
min.0.1 to max.60 wt.-%
min.0.1 to max.12 CM-%

The actual measuring range depends on the connected measuring instrument.

Show compatible measuring instruments

Specifications

  • The electrode body is made of impact-proof plastic
  • Including 10 electrode pins of 16 and 23 mm in length

Compatible instrumentsCan be used with these measuring instruments

CH 17
32 Electrodes selectable
CH 17
4 to 100 % (dry mass)
0 to 200 digits
0.3 to 8.5 wt.-%
0.3 to 6.5 CM-%
0.3 to 25 wt.-%
0.3 to 12 CM-%
0 to 100 % R.H.
±1.8 (10 to 90 % R.H.) Sensor Accuracy
-20 to 80 °C
±0.3 (0 to 60 °C) Sensor Accuracy
-40 to 380 °C
±0.5 (0 to 60 °C) Sensor Accuracy
-50 to 250 °C
-30 to 170 °C
-2,5 to 2,5 m/s
30003150
BL H 40
6 Electrodes selectable
BL H 40
5 to 40 % (dry mass)
30011100
BL H 42
8 Electrodes selectable
BL H 42
5 to 40 % (dry mass)
5.7 to 40 % (dry mass)
5.0 to 40 % (dry mass)
30011102
BL HT 70
7 Electrodes selectable
BL HT 70
5 to 70 % (dry mass)
3.1 to 41 % water content
-50 to 250 °C
30011250
BL A plus
6 Electrodes selectable
BL A plus
5 to 50 % (dry mass)
5 to 70 % (dry mass)
30011200
BL E
21 Electrodes selectable
BL E
0.1 to 42.2 wt.-%
0.1 to 9.6 CM-%
0.7 to 60 wt.-%
2.3 to 87 digits
0 to 200 digits
5.5 to 58 % (dry mass)
-50 to 250 °C
-50 to 350 °C
30011300
H 35
6 Electrodes selectable
H 35
4 to 30 % (dry mass)
30001100
HT 65
6 Electrodes selectable
HT 65
4 to 60 % (dry mass)
30001250
HB 30
21 Electrodes selectable
HB 30
4 to 30 % (dry mass)
0 to 80 digits
0.5 to 25 wt.-%
0.3 to 12 CM-%
0 to 199 digits
0.3 to 8.5 wt.-%
0.3 to 6.5 CM-%
-20 to 199.9 °C
30001510
HT 85 T
29 Electrodes selectable
HT 85 T
4 to 100 % (dry mass)
0 to 80 digits
0.5 to 25 wt.-%
0.3 to 12 CM-%
-20 to 200 °C
-50 to 250 °C
-50 to 350 °C
30001370
UNI 2
37 Electrodes selectable
UNI 2
0 to 80 digits
0.5 to 25 wt.-%
0.3 to 12 CM-%
0 to 199 digits
0.3 to 8.5 wt.-%
0.3 to 6.5 CM-%
0 to 100 % R.H.
-20 to 200 °C
-20 to 70 °C
-50 to 600 °C
-20 to 199.9 °C
-50 to 600 °C
30001550
RTU 600
41 Electrodes selectable
RTU 600
4 to 100 % (dry mass)
0 to 80 digits
0.5 to 25 wt.-%
0.3 to 12 CM-%
0 to 199 digits
0.3 to 8.5 wt.-%
0.3 to 6.5 CM-%
0 to 100 % R.H.
-20 to 200 °C
-20 to 70 °C
-50 to 600 °C
-20 to 199.9 °C
-50 to 600 °C
30001670

Carrier SystemAlso serves as carrier system for various other electrode pairs

Wood Moisture
M 20-HW 200
Carrier system: M 20
11 Measuring instruments compatible
M 20-HW 200
31004350
Wood Moisture
M 20-HW 300
Carrier system: M 20
11 Measuring instruments compatible
M 20-HW 300
31004355
Wood Moisture
M 20-DS 16
Carrier system: M 20
11 Measuring instruments compatible
M 20-DS 16
31004310
Wood Moisture
M 20-DS 16-i
Carrier system: M 20
2 Measuring instruments compatible
M 20-DS 16-i
31004311
Wood Moisture
Structural Moisture
M 20-OF 15
Carrier system: M 20
12 Measuring instruments compatible2 Usecases
M 20-OF 15
31004315
Structural Moisture
M 6-150
Carrier system: M 6, M 20
6 Measuring instruments compatible
M 6-150
31003706
Structural Moisture
M 6-250
Carrier system: M 6, M 20
6 Measuring instruments compatible
M 6-250
31003707
Structural Moisture
M 20-Bi 200
Carrier system: M 20, M 6
6 Measuring instruments compatible2 Usecases
M 20-Bi 200
31004360
Structural Moisture
M 20-Bi 300
Carrier system: M 20, M 6
6 Measuring instruments compatible2 Usecases
M 20-Bi 300
31004365

Replacement parts

Electrode Pins without insulation 16 mm
Electrode Pins without insulation 16 mm
31004610
Electrode Pins without insulation 23 mm
Electrode Pins without insulation 23 mm
31004620

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