User Manual
2 GMC-I Messtechnik GmbH
Scope of Delivery Contact Persons
Scope of Delivery
1Multimeter
1 KS17-2 measurement cable set
2 Batteries
1 Condensed operating instructions
1
CD ROM (content: operating instructions, data sheet and more)
1 DAkkS calibration certificate
1 Rubber holster
Included Functions
1
16 Mbit = 2048 kByte = 300,000 measured values,
sampling rate adjustable from 0.1 seconds to 9 hours
Function METRAHIT ULTRA /
METRAHIT ULTRA BT
M248A / M248B
Voltage, V
DC
(Ri 10 M)
3
Voltage, V
AC
TRMS (Ri 5 M)
3
Voltage, V
AC+DC
TRMS (Ri 5 M)
3
Frequency, Hz @ V
AC
@ V
AC+DC
Up to 300 kHz
1 kHz low-pass filter @ V
AC
@ V
AC+DC
Bandwidth @ V
AC+DC
or V
AC
100 kHz
Pulse frequency, MHz @ 5 V TTL 1 Hz to 1 MHz
Duty cycle as %
2.0% to 98%
Voltage level measurement, dB @ V
AC
@ V
AC+DC
Resistance,
3
Continuity test, ICONST = 1 mA
3
Diode test,
I
CONST
= 1 mA
3
Temp. measurement C/F @ T
C
Type K
Temp. measurement C/F R
TD
Pt100/Pt1000
Capacitance measurement, F
3
Current, A
DC
300
A / 3 mA
30 mA / 300 mA
3A / 10
A (16 A)
Current, A
AC+DC
TRMS
Current, A
AC
TRMS
Bandwidth @ A
AC+DC
or A
AC
10 kHz
Frequency, Hz @ A
AC
@ V
AC+DC
Up to 30 kHz
Current clamp measurement with ad-
justable transformation ratio
mV / A
mA / A
Data logger function
1
(memory) 16 MBit (2 MB)
Relative value measurement
REL
3
Zero point
3
Min / Max / Data Hold
3
IR interface (38.4 kBd)
3
Bluetooth interface (38.4 kBd)
M248B only
Power pack socket
3
Rubber holster
3
Fuse 10 A / 1000 V
Protection IP 52
Measuring category 600 V CAT III
300 V CAT IV
DAkkS Calibration Certificate
3
Function METRAHIT ULTRA /
METRAHIT ULTRA BT
M248A / M248B