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
14 GMC-I Messtechnik GmbH
Operating Overview – Connections, Keys, Rotary Switch, Symbols
Symbols of Rotary Switch Positions
Switch
FUNC
Display Measuring Function
METRAHIT
E
XTRA
METRAHIT
E
TECH
METRAHIT
E
SPECIAL
METRAHIT
E
BASE
V~ 0/4 V~ AC TRMS Alternating voltage, TRMS AC, full bandwidth
Hz (V) 1 Hz ~ AC Voltage frequency, up to 300 kHz
V~ 2 V Fil ~ AC TRMS Alternating voltage, TRMS AC, with low-pass (1 kHz) —
dB 3 dB ~ AC TRMS Alternating voltage level measurement
V~ 1 M
0/3 V~ AC TRMS Alternating voltage, TRMS AC, full bandwidth, input 1 M—
V~ 1 V Fil ~ AC TRMS Alternating voltage, TRMS AC, up to 1 kHz, input 1 M—
Hz (V) 1 M
2 Hz ~ AC Voltage frequency, up to 300 kHz, input 1 M—
V 0/2 V DC Direct voltage
V 1V DC
+
AC TRMS Pulsating voltage, TRMS ( )
MHz 0/2 MHz (High) frequency @ 5 V~ up to 1 MHz ———
% 1 % Duty cycle @ 5 V~ ———
— (Direct current) resistance
0/2 Continuity testing with acoustic signal
1
V DC Diode voltage up to 6 V
Temp TC 0/2
C Typ-K
Temperature thermocouple Type K
Temp RTD 1 C Pt 100/1000 Temperature with resistance sensor Pt 100/Pt 1000 ——
— nF Capacitance ——
A 0/2 A DC Direct current value —
A 1 A DC+AC TRMS Pulsating current value, TRMS AC+DC —
A~ 0/2 A~ AC TRMS Alternating current value, TRMS AC —
Hz (A) 1 Hz ~ AC Current frequency —
0/2 A DC Direct current value with AC DC current clamp sensors 1 V:1/10/100/
1000 A
1
A DC + AC TRMS Pulsating current value, TRMS, with AC DC current clamp sensors,
see above
0/2 A~ AC TRMS
Alternating current strength, TRMS, with current clamp sensors, see above
Hz ( ) 1 Hz ~ AC Current frequency
1kHz
1kHz
V
AC DC+
V
AC
2
V
DC
2
+=
A
A
A
A