TF-Recorder
The TF-Recorder allows voltage measurements in low-voltage systems and mains voltage carrying devices up to 1 kV.
Technical Data
The basic device consists of the case, the power supply and the data communications card TFRCPU.
The TF-Recorder can be equipped with max. 6 measuring channels for current or voltage in any desired sequence and number. The 7th slot is adjusted for the phase meter. The data communication with the downstream PC take place over the serial port; three different operating modes are provided, which can be actuated by means of the sliding switch on the front panel of the TFRCPU drawer.
Voltage Measuring Channel
Basic instrument data
Filter type | SC-Butterworth-Filter 10th order | |
Continuous measurement | Selective measurement of Voltages | |
Pulse measurement | Selective measurement of voltages | |
Input resistance | 3,8MΩ | |
Measurment ranges, resolution | ||
Selective | Nominal range | resolution |
20V | 10mV | |
200V | 0.1V | |
(max. superimposed 50Hz AC voltage 500V eff.) |
||
1 000V | 1V | |
TF without superimposed 50Hz-components | ||
Error limits | +/- 3% v.M. +3 digit | |
Display |
comined display for frequency |
|
Frequency range | 40.0Hz to 1 999.9Hz | |
Frequency setting | via connected PC | |
Resolution (step width) | 0.1 Hz | |
Display | 8-digit alphanumeric LED-display | |
Filter bandwidth (-3 dB) | 1.7%, 3%, 6.0% | |
Response times for pulse measurement |
1.7% = 400 ms 3,7% = 200 ms 6.0% = 100 ms |
Current Measuring Channel
Current measurements
Currents in the range given below can be measured with the current clamps that can be supplied as accessories.
Measuring ranges
Nominal range | Max. total current (50Hz + TF) |
20mA | 0.01 mA |
200mA | 0.1 mA |
2A | 1 mA |
20A | 10 mA |
200A | 0.1 A |
1000A | 1 A |
Max. total current
Nominal range | Max. total current (50Hz + TF) |
20 mA | 1 A |
200 mA | 10 A |
2 A | 100 A |
20 A | 350 A |
200 A | 350 A |
1000 A | 1000 A |
2 different current clamps types can be supplied as accessories, which cover together the entire range from 0.1 mA to 999 A.
Conversion ratio1.000 A / 1 A
Frequency range40 Hz to 2.000 Hz
Current clamps
M1.MB (CdA 400P replacement) |
0.1 mA to 100A |
20 A to 1.000 | |
+/- 3% v.M. +3 digit + the error limits set by the manufacturer of the current clips in differnt current measurement ranges |
|
Display | combined display for frequency and measured value |
Frequency range | 40 Hz to 1 999.9 Hz |
Frequency setting | via connected PC |
Resolution (step width) | 0.1 Hz |
Display | 8-digit alphanumeric LED-display |
Filter bandwidth (-3dB) | 1,7%, 3.7%, 6.0% |
Response times for pulse measurement |
1.7% = 400 ms 3.7% = 200 ms 6.0% = 100 ms |
Analog Output Filter
The selectively evaluated input signal for oscillographical measurements or for phase measurements with the phase meter - that can be supplied as an accessory - is available at this output.
The output voltage corresponds to the display value, regardless of the selected measurment range (0...100%). |
|
Output voltage | 5 Veff at 100% input voltage |
Output | short-circuit resistent |
Phase error switched | ± 3.6° el (with anti-aliasing filter off) |
Anti-aliasing frequencies | n * (fC ± f0) (with anti-aliasing filter switched off) |
Connection | SMB socket |
Phase Meter
Quantity of measring channels | 3 |
Max. input voltage | 5Veff |
Frequency range | 40.0 Hz to 1 999.9 Hz |
Display | combined display for frequency und measured value |
Measuring range | 0° el to 359°el, or 180°el can be selected with the relevant software packet. |
Measuring accuracy | ± 2°el, in the frequency range 40.0 Hz to 1999.9 Hz for input voltages > 0.25 Veff. This value corresponds to the output voltage of the voltage or current measuring channel with an input voltage or an input current of 5% of the final measurement range. |
Referemce channel | The reference channel ist channel B for all inputs. The positive passing of the measurement signal on channel B triggers the measurement. |
Option 01
Extension of the measuring channels with an additional input for the tripping of the measurement. Input voltage 12 – 24 V DC via 2 additional front connection sockets.
Storage Battery Supply ASV
The optional storage battery supply makes it possible to use the TF Recorder for up to 6 hours in the full configuration without a mains power supply.
Touchpanel
For the setting of the TF-Recorder without a PC or laptop connection.
+49 (0) 28 45 / 10 79 3