User manual
H35.0.02.6C-09 Operating Manual GMH 3250 page 2 of 14
Index
1 DESIGNATED USE ................................................................................................................................................. 2
2 GENERAL NOTE .................................................................................................................................................... 2
3 OPERATING AND MAINTENANCE ADVICE ........................................................................................................ 3
4 SAFETY REQUIREMENTS .................................................................................................................................... 3
5 DISPLAY AND CONTROL ELEMENTS ................................................................................................................. 4
5.1 DISPLAY ELEMENTS ............................................................................................................................................ 4
5.2 PUSHBUTTONS ................................................................................................................................................... 5
5.3 CONNECTIONS .................................................................................................................................................... 5
6 CONFIGURATION .................................................................................................................................................. 6
7 MEASURING TEMPERATURE WITH THERMOELEMENTS ............................................................................... 8
8 NOTES TO SPECIAL FUNCTIONS ....................................................................................................................... 9
8.1 DISPLAY RESOLUTION (’RESOLUTION’)................................................................................................................. 9
8.2 ZERO DISPLACEMENT (’OFFSET’) ........................................................................................................................ 9
8.3 DISPLAY CORRECTION FACTOR (’CORR’) ............................................................................................................. 9
8.4 TARE FUNCTION ................................................................................................................................................. 9
8.5 BASE ADDRESS (’ADR.’) ...................................................................................................................................... 9
8.6 ALARM ............................................................................................................................................................... 9
8.7 REAL TIME CLOCK: ............................................................................................................................................. 9
9 DATA LOGGER: ................................................................................................................................................... 10
9.1 STORING OF INDIVIDUAL VALUES: "FUNC STOR" ................................................................................................. 10
9.2 HOW TO DISPLAY INDIVIDUAL VALUES ................................................................................................................ 10
9.3 CYCLIC LOGGER FUNCTION: "FUNC CYCL" ....................................................................................................... 10
10 ERROR AND SYSTEM MESSAGES ................................................................................................................ 11
11 THE SERIAL INTERFACE ................................................................................................................................ 12
11.1 THE FOLLOWING INTERFACE FUNCTIONS WILL BE SUPPORTED:......................................................................... 12
12 SPECIFICATION ............................................................................................................................................... 13
13 DISPOSAL INSTRUCTION: .............................................................................................................................. 14
1 Designated Use
This device is designed for temperature measurement.
You can plug in up to 2 thermocouple sensors with Minitur-DIN-plug.
If you use two sensors, you can measure two different temperatures as well as the difference between them.
The device features a lot of useful features as for example min-/max-alarm, hold, correction factor for surface meas-
urement, real-time clock, interface etc.
Furthermore the GMH 3250 has an integrated logger, which can save up to 9999 data sets (at cyclic measurement).
2 General Note
Read this document carefully and get used to the operation of the device before you use it. Keep this document
within reach for consulting in case of doubt.










