Greisinger GMH 3750 Digital Thermometer 601866 Benutzerhandbuch
Produktcode
601866
H49.0.02.6C-06
Operating Manual GMH 3750
Page 4 of 16
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4 Operating and Maintenance
• Battery Operation
The battery has been used up and needs to be replaced, if „bAt“ are shown in lower display.
The device will, however, continue operating correctly for a certain time.
The battery has been completely used up, if ´bAt´ is shown in the upper display.
The battery has to be taken out, when storing device above 50°C.
The device will, however, continue operating correctly for a certain time.
The battery has been completely used up, if ´bAt´ is shown in the upper display.
The battery has to be taken out, when storing device above 50°C.
Hint: We recommend to remove the battery if device is not used for a longer period of time!
• Mains Operation
Attention: When using a power supply unit please note that operating voltage has to be 10.5 to
12 V DC. Do not apply overvoltage!! Simple 12V-power supplies often have excessive no-load
voltage. We, therefore, recommend using regulated voltage power supplies. Trouble-free
operation is guaranteed by our power supply GNG10/3000.
Prior to connecting the plug power supply with the mains supply make sure that the operating
voltage stated at the power supply is identical to the mains voltage.
12 V DC. Do not apply overvoltage!! Simple 12V-power supplies often have excessive no-load
voltage. We, therefore, recommend using regulated voltage power supplies. Trouble-free
operation is guaranteed by our power supply GNG10/3000.
Prior to connecting the plug power supply with the mains supply make sure that the operating
voltage stated at the power supply is identical to the mains voltage.
• Treat device and probes carefully. Use only in accordance with above specification. (do not
throw, hit against etc.). Protect plugs and sockets from soiling.
• To disconnect sensor plug do not pull at the cable but at the plug.
• When connecting the probe the plug will slide in smoothly if plug is entered correctly.
Selection of Output-Mode: The output can be used as serial interface or as analogue output. This
choice has to be done in the configuration menu.
choice has to be done in the configuration menu.
5 Connections
1 Probe connection: 4 pole Mini-DIN-Socket, for Pt100 4-wire probes (see also chapter 10)
2 Output: 3-pole stereo phone socket Ø3mm
Operation as interface: Connection to optically isolated interface adapter (accessory: USB 3100,
GRS 3100, ..)
Operation as analogue output: Connection via suitable 2pole cable.
Attention: The output mode has to be configured (see chapters 8, 9.6) and influences battery life!
2 Output: 3-pole stereo phone socket Ø3mm
Operation as interface: Connection to optically isolated interface adapter (accessory: USB 3100,
GRS 3100, ..)
Operation as analogue output: Connection via suitable 2pole cable.
Attention: The output mode has to be configured (see chapters 8, 9.6) and influences battery life!
The mains socket is located at the left side of the instrument