User manual

H81.0.01.6C-07 Operating Manual GMH 2710 - … page 6 of 8
_____________________________________________________ _____________________________________________________________________________
8 Adjustment
The instrument can be adjusted, assuming that: Reliable references are available, such as ice-
water regulated precision water baths or similar.
:
Displayed value °C =(measured value °C - OFFS) * (1 + slope correction / 100 )
Displayed value °F =(measured value °F - 32 °F - OFFS) * (1 + slope correction / 100 )
Follow these instructions to adjust the device:
Switch the device on.
Press and together until the first parameter “0FFS” is displayed.
Set parameter with = up or = down
Jump to the next parameter by pressing .
Parameter
Value
Information
button
buttons
OFFSET correction factory setting: oFF = 0.0°C
OFF
No offset correction
-2.5 … 2.5 °C
or
-4.5…4.5 °F
Value of offset correction
Slope correction factory setting: oFF= 0%
OFF
No slope correction
-5.00 … 5.00
Value of slope correction in %
Press again to store changed settings, the device restarts (segment test).
NOTE: If there is no key pressed within the menu mode within 2 minutes, the configuration will
be cancelled, the entered settings are lost!
9 Replacing Batteries
Before changing batteries, please read the following instruction and follow it step by step.
Not following the instruction may cause harm to the instrument or the protection against ingress of water and
dust may be lost!
Avoid unnecessary opening of the instrument!
1. Open the 3 Phillips screws at the backside of the instrument.
2. Lay down the still closed instrument, so that the display side points upwards.
The lower half of the housing incl. The electronics should be kept lying down during battery change.
This avoids loss of the sealing rings of the screw holes.
3. Lift upper half of housing. Keep an eye on the three function keys, to be sure not to damage them.
4. Change carefully the two batteries (Type: AAA).
5. Check: Are the 3 sealing rings placed in the housing?
Is the circumference seal of the upper half sound and clean?
6. Close the housing, taking care that it is positioned correctly, otherwise the sealing may be damaged.
Afterwards press the two halves together, lay the instrument with display pointing downwards and
screw it together again
Take care to screw only until you feel increasing resistance, higher screwing force does not
result in higher water protection!