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GMH 3230 - Details

Home --> Temperature and Humidity --> Temperature Measurement + Accessories --> Digital Thermometer

Double / difference quick-response thermometer for 5 different thermocouples GMH 3230 Greisinger Electronic

Double/difference quick-response thermometer for 5 different thermocouples!

  • 2 plug-in probes can be connected and read simultaneously

  • measuring of temperature differences (probe1-probe2) with 
               0,1 or 1 resolution possible

  • 5 different thermocouples can be used! (K, J, N, S, T)

  • temperature differences can also be measured on metal surfaces
    and in liquid with non volt-free probes!

  • correction of meas. values for surface meas. can be switched on/off

  • serial interface

  • device can be connected to a bus system
    (up to 5 devices can be connected to one PC interface)

  • Min/Max value memory

  • hold function

  • battery and d.c. operation

  • tara/diff-function

  • zero-point offset entry




GMH 3230


digital-precision quick response thermometer for thermocouples
simultaneous connection of 2 plug-in probes



thermocouples: J, K, N, S, T (acc. to DIN EN 60584)

measuring ranges (abridgement):


Type K (NiCr-Ni):       -199.9C to +999.9C (meas. range 1) resp. -220C bis +1,370C (meas. range 2)
0.1C or 1C (0.1F or 1F)

Type K:

meas. 1: 0.03 % of meas. val. 0.05 % FS (T>-60C), 0.2 % of meas. val. 0.05 % FS (T<-60C) 
meas. range 2: 0.08 % of meas. val. 0.1 % FS (T>-100C), 1C 0.1 % FS (T<-100C)
working temperature: -25C to +50C
relative humidity: 0 % to +95% r.h. (non-condensing)

2 four digit LCDs (12.4mm and/or 7mm high) for temperature, min./max. values, hold function, etc.
as well as additional functional arrows.

interface: serial interface (3.5mm jack connector), direct connection with
RS232 interface of a PC via electrically isolated interface adapter 
GRS 3100 or GRS 3105
Min-/Max-value memory: memorizing of max. and min. values probe 1, probe 2 and difference

hold function:
By pressing a button the current values for temperature 1, temperature 2 and and difference will be memorized.
push buttons: 6 membrane keys for ON/OFF-switch, selection of thermocouples, 
min. and max. value memory, holdfunction etc.
power supply: 9V battery, type IEC 6F22 (included) as well as additional d.c. connector (internal pin average 1.9mm)
for external 10.5-12V direct voltage supply (suitable power supply: GNG10/3000)
low battery warning: 'bAt'
power-off-function: device will be automatically switched off if no key is pressed/no interface 
communication takes place for the time of the power-off delay.
The power-off delay can be set between 1 and 120 min.; it can be completely deactivated 
housing dimensions: 142 x 71 x 26 mm (H x W x D) 
impact resistant ABS plastic housing, membrane keyboard, transparent panel. front side IP65,
integrated pop-up clip for table top or suspended use.
weight: approx. 155 g


special applications:

difference measurements: probe 1 - probe 2 with a resolution of 0.1 or 1C temperature difference probe 1 - probe 2
can be displayed if 2 probes are connected.
compensation value for surface measurements:   a compensation value (to compensate for the loss when transferring heat from the meas. object to the probe)
can be set and switched on/off for surface measurements if required.
tara/diff-function: press button to set the difference display 'probe 1 - probe 2 to zero
zero-point-offset-entry: by entering the offset temperature the parameter can be moved parallelly to the calibration graph.

Double/difference quick-response thermometer for 5 different thermocouples and for 2 simultaneous probes of 1 type (temperature difference), battery or net supply, with0.1 or 1 resolution possible, (sensor not incl.) - replaced by GMH 3231 (EUR 199.00)

Please order the following accessories separately:

  Please order furthermore separately:

= data sheet as *.pdf

= instruction manual as *.pdf

deutsche Beschreibung

Price of the basic article, German V.A.T. incl : EUR 202.00

The net price of the basic article  GMH 3230 is:  EUR 169.75 

Price German V.A.T. incl. plus shipping and handling (p.r.t. footnote of this page)