Full Text Searchable PDF User Manual
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Operating Manual for Digital Thermometer
GTH 2448 / 4: -200 ... +650 °C
GTH 2448 / 5: -60.0 ... +199.9 °C
GTH 2448 / 4: 1 °C
GTH 2448 / 5: 0.1 °C
Pt1000, 2-wire, (probe not included in scope of supply)
± 0.5°C ±1 Digit
An Offset of the sensor (e.g. when using long cable) can be compensated with the spin-
dle potentiometer at the backside of the housing.
3½-digit, red LED-display, 10 mm high
approx. 3 measurements/sec.
0 to 50 °C
5 to 95 %RH (non-condensing)
-20 to +70 °C
DC (8 - 20
DC) or 24
DC (18 - 29
(to be set via soldering jumper)
max. 20 mA
glass fibre reinforced Noryl, front screen PC.
24 x 48 mm (H x W)
(dimensions of front frame)
approx. 65 mm
(incl. screw-type/plug-in terminals)
by means of VA- elastic spike, allowed panel thickness: from 1 to approx. 10 mm
mm (H x W).
4-pin screw-type/plug-in terminals for wire dias ranging from 0.14 to 1.5 mm²
Device has been tested according to EN50081-1 and EN50082-2
additional fault: <1%
front IP54 (with optional O-rings IP65).
(small selection - for our complete accessories refer to our catalogue)
GNG220/1-12V power supply (230VAC) for GIA2448
; output: 12V
stabilised, max. 40 mA
O-rings for IP rating IP65 at the front
GTF 102 / Pt1000, 2-wire
-200 ... +600°C probe e.g. for screwing in to measuring object.
-50 ... +400°C arbitrary tube diameters, lengths and threads are possible - refer to catalog
GTF 103 / Pt1000, 2-wire
-200 ... +600°C probe with connection head (DIN B), R1/2", FL = 100 mm, D = dia 6mm
-50 ... +400°C (outer configuration refer to catalog)
GHM Messtechnik GmbH
/ Standort Greisinger
• D - 93128 Regenstauf
+49 (0) 9402 / 9383-0
+49 (0) 9402 / 9383-33
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soldering jumper A1
Electric connections for the GTH 2448 / 4 or GTH 2448 / 5 are located at the back of the device.
Connection is made via screw-type/plug-in terminals (max. terminal range 1,5mm²).
Make it a rule to always mount screw-type/plug-in terminals while they are still loose and connect only later.
If terminals are mounted after connection there is a risk that soldering eyes may come loose. Please use suitable
screw-driver and do not tighten screws by force.
DC or 24
Please make sure to check if supply voltage and voltage range set
conform to each other.
Use the soldering jumper next to the connection terminal to select
Jumper "A1" open:
24 V (18 - 29 V DC)
Jumper "A1" closed:
12 V (8 - 20 V DC)
Both the connection and commissioning of the device must only be car-
ried out by skilled personnel. In case of a wrong connection, the device
may be destroyed - no warranty claims can be accepted !
Make it a rule to always observe the following points to exclude any risk whatsoever for the operator.
a) In case of any obvious damage and/or functional problems disconnect device immediately
b) Prior to opening it, disconnect device and supply voltage source. Make sure that all parts of the device are protected against
direct touching when mounting the device and setting its connections.
c) Please always adhere to the standard safety regulations for electric devices, power systems and light-current installations, and
make sure that your national safety regulations (e.g. VDE 0100) are observed.
d) If device is to be connected to other devices (e.g. via serial interface) the circuitry has to be designed most carefully. Internal
connection in third party devices may result in not-permissible voltages.
These are persons who are familiar with the installation, mounting, commissioning and the operation of the product and have ac-
quired a qualification for their job:
Training or instructions or qualification to switch on/off, isolate, ground and apply markings to circuits and devices/systems in
accordance with the latest state of the art standards of safety technology.
Training or instructions regarding the proper care and use of suitable safety equipment in accordance with the latest state of the
art standards of safety technology.
First aid training.
When operating electric devices parts of these devices will, as a matter of course, be live.
Unless the warnings are observed severe damage to life and limb or to property may be the
result. Make sure that only skilled personnel is working with this device. Trouble-free opera-
tion of this device can only be guaranteed if it is properly transported and stored. Careful
installation, mounting, operation and maintenance are vital factors for the safe operation of this
Do not use these product as safety or emergency stop devices, or in any other application where fail-
ure of the product could result in personal injury or material damage.
Failure to comply with these instructions could result in death or serious injury and material damage.
Supply voltage +
GND Supply voltage –
This device must not be disposed as ‘residual waste’. To dispose this device, please send it directly to us (adequately stamped).
We will dispose it appropriately and environmentally friendly.
Pt1000 (-60.0 ... +199,9°C)