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A recorder is 250mm wide. It is of a desk-top (flat bed) type. It responds to 1 to 3 channels.
The recorder comes standard with a polarity changeover switch, a recording-paper fast-forward switch, a recording-paper rewind knob, a recording-paper-end alarm, and a superimposed event marker that makes it possible to place a mark arbitrarily on a recording line.
A power source can be easily switched among 5 types of voltages : AC100, 115, 200, 220, 240V. It can be used in all parts of the world.
Options are available for use, including a recording-paper wind-up device, a handcart for a recorder, and a separate pen type event marker, etc.
Features
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Shape is easy to write a comment.
The length of a bed plate for charts is lengthened. This makes it easier to write a comment in longhand from above recorded waveforms.
Moreover, switches are not arranged on the right sleeve panel so as not to become obstructive when a comment is written in longhand. -
Built-in simple calibration power supply.
A power source for calibration with the highest sensitivity to an input range is built in.
Without separately make available a reference power source for calibration, a check of accuracy can be easily made in the following operating steps.
(1) Set an input range of the input amplifier unit to the highest sensitivity.
(2) Set the [MEAS/CHK/CAL] changeover switch to [CHK] and zero point (0%).
(3) Set the [MEAS/CHK/CAL] changeover switch to [CAL]. If a pen is moved by the built-in power source for calibration and it stops at the position of full-scale (100%). This is normal.
※ If a pen is shifted in the direction of + (plus) or – (minus) from the position of 100%, calibration is needed. -
Recording paper feed operation unit.
All settings can be made for switching the speed of recording paper (chart paper), and switching the unit of speed, etc.
A pen can be ascended or descended with a pen lift lever.
It is possible to operate Channel 1 and Channel 2 respectively.
With the MARK switch, a mark can be superimposed and placed on a recorded waveform. -
Input terminal.
Connections can be made through three types of signal lines: a signal line from which cladding is detached, a signal line to which a Y-crimp terminal is attached, and a signal line to which a banana plug is attached.
U-329 Specs
| Model | U-329-500 (3channel) |
|---|---|
| External dimensions | 430(W)×170(H)×410(D)mm (Projection things are not included.) |
| Mass | Approx.11kg |
| Use environment |
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| Power supply | AC100, 115, 200, 220, 240V±10% Common for 50Hz and 60Hz |
| Operation method | Automatic balancing system |
| Effective recording width | 250mm |
| Measuring range |
1 / 2 / 5 / 10 / 20 / 50mV 0.1 / 0.2 / 0.5 / 1 / 2 / 5 / 10 / 20 / 50 / 100 / 200V (17 ranges) |
| Maximum allowable input voltage | 1mV to 50mV range within 30V 100mV to 200 V range within 200V |
| Input Impedance | 1MΩ (constant) |
| Input method | Floating |
| Resistance | Less than 10kΩ |
| Accuracy | ±0.3% (23℃), Temperature Coefficient 0.025%/℃ Max. |
| Errors Between Ranges |
2mV to 50mV Range : ±0.15% (23℃), Temperature Coefficient ±0.0050%/℃ Max. 0.1V to 200V Range : ±0.20% (23℃), Temperature Coefficient ±0.0075%/℃ Max. |
| Dead Band | ±0.1% |
| Polarity Switch | Provided |
| Pen speed | 750mm/sec or more |
| Zero Set Range | +100% from right zero center |
| Chart speed |
(1)10，15，20，30，40，60 : mm/h, cm/h, mm/min, cm/min 24 steps and 23 speeds (10mm/min and 60cm/h are overlapping) (2) Chart Drive by External Signal Chart speed : 1mm/min at 1Hz, 600Hz Max. Input impedance : 4.7kΩ or more External signal source Voltage : High level +2.0V to +20V : Low level +0.8V to -20V (Operable at TTL level) Signal waveforms : Pulse, sine wave, square wave, triangular wave, etc. (Pulse width 50µsec or more) |
| Chart End Alarm | Following actions take place when chart paper comes to an end Buzzer is sounded / Chart drive is stopped / Pen is stopped / Lamp is flashed |
| Pen Lift | Individually and manually operated (Distance between pens : 4mm) |
| Event Marker | Superimposing, Amplitude: +3.5±1 graduation, Time: 0.2 to 0.4sec(With marker switch) |
| Calibration power supply | Built-in (1V Max.) |
| Noise Rejection |
CMRR:DC 160dB or more, AC(50/60Hz) 160dB or more NMRR:AC(50/60Hz) 64dB or more |
| Power consumption(TYP.) | 1Pen At balanced 19VA / Max. 32VA 2Pen At balanced 21VA / Max. 47VA 3Pen At balanced 23VA / Max. 62VA |
| Insulation resistance/Withstand voltage | Between power supply and chassis (GND) : 50MΩ or more (DC500V megger) |
| Recording paper | Roll Recording paper No.2516P50 (Length 20m, right zero) |
| Recording pen | 1P NDA-5R(Red) / 2P NDK-18G(Green) / 3P NDF-BN(Brown) |
Option
Another pen marker
Besides a recording pen of the main unit, a device makes it possible to place a mark in the right end part of recording paper by using an exclusive-use pen.
It is possible to place an arbitrary mark on a time axis.
Model:U-329-MRK
It is possible to place an arbitrary mark on a time axis.
Model:U-329-MRK
Recording paper take-up device
A device is used to wind up and store already recorded recording paper automatically.
It is possible to store recording paper neatly without making it slacken.
Model : U-329-TAK
It is possible to store recording paper neatly without making it slacken.
Model : U-329-TAK
Cart for recorder
Cart for recorder with drawer
Model : CAR-1
Model : CAR-1
Application example
Application example of U-329
- Magnetic survey Our Model U-329 is used for detecting misfired mines, bombs and bombshells, all which have been buried underground or in sea beds, and for recording signals of magnetic detectors.
The position information can be recorded at the same time as the signal record by marking it by a certain distance by the pen type marker pen of the option.
By regularly performing maintenance, U-329 is used even for outdoor ground and sea-based bad environments for magnetic detection.
- Recording of output waveforms from analyzers.
- Recording of output waveforms from various testers.
- Various experiments at universities, research laboratories, and enterprises.
