User Manual

2 GMC-I Messtechnik GmbH
1Display (LCD)
2ON|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
 /m  /m  @ 1A
S+ Sense +, for 4-wire connection only with  m  /m  @1A
V;
 ;  C, M  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 27I Set H+E CAR
H+E CAR
Set
Article Number M227A M227B M227C M227S M227T M227U
Instrument METRA HIT 27M 27I 27I 27I
H+E CAR H+E CAR
3 size AA NiMH storage batteries 
Measurement cable set KS17-S KS17-S KS17-S KS17-2 ——
operating instructions 
abbreviated operating instructions 
GH18 protective rubber
cover with carrying strap
green green green green orange orange
DAkkS calibration certificate 
Charging unit NA HIT 2x — 
Kelvin clips KC4 (1 set = 2 each) — ——
Kelvin prob. KC27 (1 set=2 each) ——  ———
Hard case HC30 — — ——
Hybrid Diagnostic-Kit ————— 
1
10
9
64 53
7
8
2