Instructions
Table Of Contents
- 1 Safety Features and Precautions
- 2 Operating Overview – Connections, Keys, Rotary Switch, Symbols
- 3 Initial Start-Up
- 4 Control Functions
- 5 Measurements
- 5.1 Voltage Measurement
- 5.1.1 Direct and Pulsating Voltage Measurement, V DC and V (DC+AC)
- 5.1.2 Alternating Voltage Measurement with 1 MW Load Resistance and Frequency Measurement with Selectable Low-Pass Filter (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.1.3 Alternating Voltage and Frequency Measurement V AC and Hz with Selectable Low-Pass Filter (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.1.4 Frequency and Duty Cycle Measurements (METRA HIT Extra only)
- 5.2 Resistance Measurement, W
- 5.3 Continuity Test
- 5.4 Diode Testing with a Constant Current of 1 mA
- 5.5 Temperature Measurement
- 5.6 Capacitance Measurement (METRA HIT Extra and METRA HIT Etech only)
- 5.7 Current Measurement
- 5.7.1 Direct and Pulsating Current Measurement, Direct Connection, A DC and A (DC+AC) (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.7.2 Alternating Current and Frequency Measurement, Direct Connection, A AC and Hz (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.7.3 Direct and Pulsating Current Measurement with Current Clamp Sensors, A DC and A (DC+AC)
- 5.7.4 Alternating Current Measurement with Current Clamp Sensors, A AC and Hz
- 5.7.5 Direct, Pulsating and Current Measurement with Current Clamps Transformer A DC, A (DC+AC), A AC and Hz (METRA HIT Extra, METRA HIT Etech and METRA HIT Especial only)
- 5.1 Voltage Measurement
- 6 Device and Measuring Parameters
- 7 Interface Operation
- 8 Technical Data
- 9 Maintenance and Calibration
- 10 Accessories
- 11 Index
GMC-I Messtechnik GmbH 23
Control Functions
4.5 Measurement Data Recording (METRAHIT EXTRA only)
The METRAHIT E
XTRA is capable of recording measurement data
using an adjustable sampling rate for long periods of time in the
form of measurement series. Data are stored to a battery backed
memory module, and are retained even after the multimeter is
switched off. The system acquires measured values relative to
real-time.
Stored measured values can subsequently be read out with the
help of METRAwin 10 software. The only prerequisite is a PC which
is connected by means of an interface cable to the USB X-TRA
bi-directional interface adapter, which is in turn plugged onto the
METRAHIT E
XTRA. See also chapter 7, “Interface Operation”.
Memory Parameters Overview (METRAHIT EXTRA only)
The STORE Menu Function
➭ First set the sampling rate for memory mode operation (see rAtE
parameter in chapter 6.4) , and then start memory mode oper-
ation.
➭ First select the desired measuring function and an appropriate
measuring range.
➭ Check the battery charge level before starting long-term
measurement recordings (see chapter 6.3).
Connect the NA X-TRA power pack if required.
Starting Recording via Menu Functions
➭ Switch to the “SET ” mode by pressing MEASURE | SETUP and se-
lect the “StorE ” menu.
1nFo
... StorE 000.0% StArt
➭ Memory mode operation is started by pressing FUNC | ENTER.
STORE appears underneath the analog display and indicates
that memory mode operation has been activated.
“StoP ” appears at the digital display.
➭ Press MEASURE | SETUP in order to return to the measuring
function.
Parameter Page: header
CLEAr
24: Clear Memory
EMpty
24: Clear Memory – appears after CLEAr
0CCvP
24: Querying Memory Occupancy
rAtE
48: rAtE – set the sampling rate (METRAHIT EXTRA only)
StArt
23: Starting Recording via Menu Functions
StoP
24: Ending Recording
MEASURE
SETUP
FUNC
ENTER
FUNC
ENTER