Operation Manual

2 GMC-I Messtechnik GmbH
1Display (LCD)
2 ON|OFF key
Operating mode menu: open submenus / acknowledge entries
METRA HIT 27I: background illumination ON / OFF
3 DATA| CLEAR key for following functions: save measured value,
delete and MIN/MAX
Operating mode menu: Selection of individual menu items
against direction of flow / increase values
4 MAN|AUTO key for manual measuring range selection
Operating mode menu: Selection of individual menu items
in direction of flow, decrease values
5 FUNC key for selecting functions, start key INS measurement
Operating mode menu: Exit menu level and return to a higher level/
exit parameters configuration without saving data
6 Rotary selector switch for measuring function
7 Connector jacks *
8 Connector jacks for mains power battery charger NA HIT 2x
(only with storage batteries inserted)
*
⊥ Earthing input
S- Sense –, for 4-wire connection only with
Ω /m Ω /m Ω @ 1A
S+ Sense +, for 4-wire connection only with Ω/ m Ω /m Ω @1A
V;
Ω ; ° C, M Ω measurement input
Symbols used in the Digital Display
1 Main display with decimal point and polarity display
2 Auxiliary display with decimal point and polarity display
3 : Multimeter in continuous operation,
ON blinks at transmission frequency in transmission mode
4 REM: Memory mode operation, disappears after communication
via the interface is ended by means of key or switch operation
5 ZERO: Zero balancing
6 MAN: Manual measuring range selection
7 Unit of measure (if blinking, refer to chapter 11.2 on page 16 and
chapter 15 on page 26)
8 MIN/MAX: Display of smallest/largest recorded values
with time specification
9 : Acoustic signal enabled,
beeper is activated for corresponding function
10 : Low storage battery voltage (< 3.3 V), recharge storage
batteries
Standard Equipment
1
2
3
4
5
6
8
7
7
max. 600 V !
Type 27M 27I 27AS
Article Number M227A M227B M227C
Instrument METRA HIT 27M 27I 27I
3 size AA NiMH storage batteries •• •
KS17S measurement cable set •• •
operating instructions •• •
abbreviated operating instructions •• •
GH18 protective rubber cover with
carrying strap
•• •
DKD calibration certificate •• •
Charging unit NA HIT 2x — ••
Kelvin clips KC4 (1 set = 2 each) — ••
Kelvin probes KC27 (1 set = 2 each) —— •
Hard case HC30 — — •
USB-Adapter, USB cable, METRA-
win 10 and METRAwin 90-2 soft-
ware
—— •
1
10
9
64 53
7
8
2