GREISINGER GMH 3830 Operating Manual Download Page 5

H60.0.11.6C-16 

 Operating Manual GMH 3830 

Page 5 of 18 

 

 

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3.4  Connections 

 

1.

 

Output:

 Operation as interface: Connect to optically isolated 

interface adapter (accessory: GRS 3100, GRS3105 or 
USB3100) 
Operation as analogue output: Connection via suitable cable.  
Attention: The output mode has to be configured (p.r.t 2.7) 
and influences battery life! 

2.

 

Sensor-connection: 

BNC 

3.

 

Temperature-probe-connection:

 Thermocouple type K 

(NiCr-Ni) for temperature-compensation with an external 
temperature-probe 

4.

 

The 

mains socket

 is located at the left side of the instrument. 

3.5  Display Elements 

 

1 = Main Display:

 

 

Currently measured material moisture  
[percent moisture content] 
HLD: Measure value is ‘frozen‘ (Button 6) 

2 = Auxiliary Display:

 

Currently selected material  
(or temperature when pressing Button 3) 
Blinking display: Displayed value is out of 
specified range (wood 8..40%u) 

Special display elements:

 

3 =  Moisture 
evaluation:

 

Evaluation of the material condition: via top 
arrows: DRY - MEDIUM - WET 

4 = Warning triangle:

 

Indicates low battery 

5 =  “%u” or “%w” 

Displays unit: moisture content u or wet 
basis moisture content w 

6 =  T external-arrow 

Appears if an external temperature-probe is 
connected and automatic temperature 
compensation is activated. 

 

All remaining arrows have no function in this version. 

 

3.6  Pushbuttons 

 

Key 1:

 

On/Off key

 

Key 4:

 

Set/Menu 

 

press (Menu) for 2 sec.: configuration will activated 

Key 2, 5:

 

During measure: select a material 

p.r.t.: limitation of the material selection, 
   List of selectable materials: 
   Appendix A; Appendix B 

With manual temperature compensation:

 

   When displaying temperature (call via button 3 
‚Temp‘):  
   Input of temperature

 

up/down for configuration:

 

   to enter values or change settings 

Key 6:

 

Store/

-

 

Measurement:  
with 

Auto-Hold off: Hold current measuring value

 ('HLD' in display)  

with 

Auto-Hold on: Start a new measure

, which is ready when 'HLD' appears in the 

display 
refer to chapter 5.3 Auto-Hold Function 

-

 

Set/Menu or temperature input:  
confirming of selected input, return to measure 

 
Key 3:

 

 
During the measure:

 shortly displaying temperature or changing to temperature input. 

 

 

 

Summary of Contents for GMH 3830

Page 1: ...3128 Regenstauf 49 0 9402 9383 0 49 0 9402 9383 33 info greisinger de as of version 2 1 Operating Manual GMH 3830 Resistive material moisture and temperature measuring Instrument keep for future refer...

Page 2: ...G OTHER MATERIALS 8 5 6 1 Hard Materials concrete or similar Measuring with brush type probes GBSL91 or GBSK91 8 5 6 2 Soft Materials polystyrene or similar Measuring with Measuring rods or pins GMS 3...

Page 3: ...n indirect impact on the operation or can trigger an unforeseen reaction if ignored table 1 2 2 Safety Instructions This device has been designed and tested in accordance to the safety regulations for...

Page 4: ...ove specification do not throw hit against etc Protect plugs and sockets from soiling 4 Mains Operation When using a power supply unit please note that operating voltage has to be 10 5 to 12 V DC Do n...

Page 5: ...splay elements 3 Moisture evaluation Evaluation of the material condition via top arrows DRY MEDIUM WET 4 Warning triangle Indicates low battery 5 u or w Displays unit moisture content u or wet basis...

Page 6: ...F All temperature values are in degrees Fahrenheit oFF Atc off temperature input for compensation via keys 5 4 on Atc on temperature compensation via internally measured temperature or external probe...

Page 7: ...re measuring devices use one single group for spruce and oak in reality the deviation of these characteristic curves is more than 3 Base for this statement are complex statistical surveys considered m...

Page 8: ...ure dispersion may be irregular often in the core is more moisture than on the edge Surface moisture The wood edge could be more humid than the core if the wood had been stored outside and e g was in...

Page 9: ...measuring value an individual moisture estimation will be displayed simultaneously This moisture evaluation is only a guidance value the final evaluation is depending on the application of the materi...

Page 10: ...tion x X 0 read nominal value x x 202 read unit of display x X 3 read system status x x 204 read decimal point of display x 12 read ID no x 205 read extended measuring type in display x X 176 read min...

Page 11: ...o valid signal Connect meas material charge at the probe device will discharge esp at dry wood Wait until probe has discharged Sensor broken or device defective return to manufacturer for repair Err 1...

Page 12: ...g Output 3 5mm audio plug stereo Selectable as serial interface via optically isolated interface adapter GRS3100 GRS3105 or USB3100 p r t accessories directly connectable to RS232 or USB interfaces or...

Page 13: ...Japanese Fraxinus mandshurica h 134 4 100 Ash Red Flindersia excelsa h 21 5 86 Ash Scaly Ganophyllum falcatum h 22 5 100 Ash Silver Northern Flindersia schottina h 23 7 89 Ash Silver Queensland Flinde...

Page 14: ...ustralasicum h 113 7 85 Cupiuba Goupia glabra h 147 6 69 Curupix Micropholis h 114 6 63 Cypress Cupressus spp h 456 5 100 Cypress Northern Callitris intratropica h 115 6 100 Cypress Rottnest Island Ca...

Page 15: ...Mahogany White Eucalyptus acmenoides h 247 6 100 Mahogony Khaya Khaya spp h 235 7 100 Mahogony American Swietenia spp h 234 6 100 Mahogony Phillipines Parashorea plicata h 236 5 100 Mahogony Phillipi...

Page 16: ...diata New Zealand sapwood aac Pinus radiata h 338 7 100 Pine Radiata New Zealand sapwood boliden Pinus radiata h 339 6 100 Pine Radiata New Zealand sapwood boron Pinus radiata h 340 6 89 Pine Radiata...

Page 17: ...ilschmiedia tawa h 416 6 77 Tawa sap heart untreated Beilschmiedia tawa h 417 7 82 Teak Tectona grandis h 418 6 100 Terap Artocarpus elasticus h 419 2 100 Terentang Campnosperma brevipetiolata h 420 5...

Page 18: ...KM 1 3 b 14 0 4 40 4 Lime sand bricks 14 DF 200 gross density 1 9 b 28 0 1 12 5 Limestone b 15 0 4 29 5 MDF b 16 3 3 52 1 Cardboard b 17 9 8 100 0 Stone timber b 18 10 5 18 3 Polystyrene b 25 3 9 50...

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