High-speed, modular thermal chart recorder from Sefram.
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The Sefram 8460 is a High-Speed Thermal Chart Recorder for: Voltage, Current (with shunt or Clamp), Temperature (thermocouples), measurements on sensors (e.g. 0-10V; 4-20 mA), etc..
One of the benefits of the 8460 is that it is a modular system, with 4 input boards available:
Another feature of this system is that it is possible to record 6 up to 36 channels, and 16 logical inputs. Additionally, long term measurements with a sampling rate of 1MHz are possible with the 500GB internal hard disk memory. Also, with a special integrated function of Power Analysis you can record all your parameters on a Single-Phase and Three-Phase network (50Hz, 400Hz and 1kHz).
Furthermore, this Data Acquisition System can be remotely controlled by USB, Ethernet or Wi-Fi connection and the results can analysed on license-free software from Sefram.
General Features |
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| Power Supply | 90VAC to 264VAC, 47Hz to 63Hz |
| Consumption | 230VA max, 60w without print |
| Operating Temperature | 0°C to +40°C |
| Storage Temperature | -20°C to +60°C |
| Maximum Operating RH | 80% max. |
| Dimensions | 370 x 440 x195 mm |
| Weight | 11 Kg (with one board installed) |
| Display | 15.4" TFT touch screen, with backlight Resolution: 1280 x 800 f(t) and XY oscilloscope-type display capability Functions: zoom, cursors, zoom between cursors Math and scaling functions (Y = aX + B) 20 automatic measurements available |
| Memory | 128 Mwords, in segments Internal hard disk 500Gb, with fast transfer (6Ms/s) |
| Interfaces and IO | 6 x USB (2 on the front panel, 4 on the rear panel), VGA, Ethernet Logical channels 16 logical channels (V max: 24V, Zin = 4.7kohms) Sensor supply 12V / 0.2A max (non floating) Alarm output 3 output, with 1 relay (24V/100mA) and 2 x TTL 5V |
Power Analysis Function
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| Networks | single phase, dual phases, three phases |
| Frequency | 50-60Hz, 400Hz and 1000Hz |
| Display | oscilloscope, Fresnel diagram |
| Harmonics | calculated up to rank 50, with recording capabilities |
| Measurements | 24 measurements: U and I (mean values, RMS, peak), crest factor, power (active, reactive, apparent), power factor, harmonics, THD, DF, frequency, energy,… |
Recording and Traces |
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| Paper Width | 270mm |
| Paper Speed | direct mode: 1mm/h up to 200mm/s mixed mode: 1mm/h up to 50mm/s memory transcription: 10mm/s max quick advance: 100mm/s external control: 50mm/s test mode: from 1 line/s to 1 line/h |
| Resolution Accuracy | y axis: 8 dots per mm X axis: 16 dots per mm up to 50mm/s and 8 dots for higher speed XY mode: 8 dots per mm Accuracy in relation to graticule: 0.01% |
| Graticule | 5 pre-programmed graticules |
Isolated High Voltage Board |
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| Channels | 6 |
| DC Voltage | ranges from 100mV to 2000V |
| Max. Offset | ±5 ranges (limited at 2000V max) |
| Accuracy | ±0.2% ±0.2% of offset |
| Max. RMS AC+DC voltage | 1000V AC |
| Bandwidth (-3dB) | 26kHz (depending on range) |
| Crest Factor | 2,2 (with max. 2000Vpeak) |
| Input Impedance | 11MΩ for ranges <10V 10MΩ for ranges ≥10V |
| Security | CAT III - 1000V and CAT IV - 600V |
Frequency |
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| Sensitivity | 100mVrms. Min |
| Duty Cycle | 10% min. |
| Frequency Range | 10Hz to 100kHz |
| Basic Accuracy | ±0.02% of full scale |
Sampling |
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| Resolution | 14 bit |
| Sampling Rate | 1Ms/s per channel max. |
Bandwidth |
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| Analogue Input Bandwidth | Range ≥100V: 26kHz Ranges from 10V to 100V: 20kHz Ranges < 10V: 3kHz |
| Programmable Analogue Filters | 10kHz, 1kHz, 100Hz (60dB / decade slope) |
Universal Input Board |
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| Channels | 6 |
| DC Voltage Range | 1mV to 1000 V |
| Max Offset | ± 5 ranges ( except 1000V) |
| Accuracy | ± 0.1% ± 10 μV ± 0.2% offset |
| TRMS AC+DC | 200 mV to 500 V |
| Bandwidth (-3dB) | 5 Hz - 100 kHz |
| Crest Factor | 4 |
Frequency |
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| Sensitivity | 300 mV rms min. |
| Duty Cycle | 10% min. |
| Frequency Range | 10Hz to 100 kHz |
| Basic Accuracy | 0.2% of full scale |
| Maximum Input Voltage | ± 500VDC or 440V AC (sine) |
Temperature
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Sampling |
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| Resolution | 14 bit |
| Sampling Rate | 1M sample/sec per channel |
| Memory Length | 32M word in segments of up to 128 Blocks |
| Triggering | Positive edge, negative edge, on logical input, delay, Go No Go. |
| Pre-Trigger | -100% to +100% |
Bandwidth |
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| Analogue Input bandwidth to -3dB |
range ≤ 1V : 100kHz range ≤ 50m V to 1V : 50kHz |
| Programmable Digital Filters | 10 Hz, 100 Hz, 1 kHz, 10 kHz |
| Input Impedance (DC) | >25M Ω for range <1V 1 M Ω for upper ranges |
| Input Capacitance | 150pF |
| Maximum Input Voltage | between one channel and the frame ground ± 500V between 2 terminals of one channel ± 500V Isolation between frame ground and channel >100MΩ at 500VDC |
Multiplexed Board |
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| Channels | 12 |
Voltage |
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| DC Voltage Range | 1mV to 50 V |
| Max Offset | ± 5 ranges |
| Accuracy | ± 0.1% ± 10μV ± 0.1% offset |
| TRMS AC+DC | 200mV to 50V |
| Bandwidth (-3dB) | 5Hz to 100Hz |
Temperature
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Sampling |
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| Resolution | 16 bit |
| Sampling Rate | 200μs maxi. (5K sample/s) |
| Memory Length | 32M word in segments of up to 128 Blocks |
| Triggering | Positive edge, negative edge, on logical input, delay, Go No Go. |
| Pre-Trigger | -100% to +100% |
Bandwidth |
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| Analogue Input Bandwidth to -3 dB | 1 kHz to -3 dB |
| Programmable Digital Filters | 0.01Hz to 50Hz |
| Input Impedance (DC) | 2 M Ω range >5V 10M Ω (150pF) for other ranges |
| Maximum Input Voltage | between one channel and the frame ground ± 50V between 2 terminals of one channel ± 50V all input are differential, non isolated |
| Common Mode Voltage Max | ± 5V for ranges < 5V ± 50V for ranges > 5V |
Strain Gauge Board |
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| Channels | 6 |
| Measurements | Strain gauge, voltage, thermocouple and current with optional external shunt |
| Input | differential, fully isolated |
| Input Impedance | 2 MΩ for ranges < 1 Volt 1 MΩ for ranges >= 1 Volt |
| Maximum Input Voltage (Between one input and ground, or between ground and mechanical chassis) |
200V DC |
| Input Voltage | ± 50V |
| Isolation (between channels and mechanical chassis) |
>100 MΩ under 500V |
| Input Connectors | Fast plug-in / plug-out, 6 contacts per channel |
Voltage Measurement |
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| Maximum Range | 50 V |
| Lowest Range | 1 mV |
| Maximum Offset | ±50V limited at ± 5 ranges |
| Accuracy | ± 0.1% of full scale ± 10μV ± 0.1% of offset |
| Resolution | 16 bit |
| Offset Drift | 100 kS / s (10μs) |
| Sampling Rate | 100ppm/°C ±1 μV/°C |
| Noise | <30μV without filter |
Strain Gauge Measurement
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| Bridge | Full bridge (4 and 6 wires), half bridge |
| Automatic Balancing Range | ± 25000 μSTR |
| Bridge Supply Voltages | 2V and 5V (symmetrical ±1V and ±2.5V) |
| Gauge Rate | 2 (adjustable between 1.8 and 2.2) |
| Maximum Range | 50 000 μSTR |
| Minimum Range | 1000 μSTR |
| Maximum Offset | ± 50000μSTR |
| Accuracy | ± 0.1% of full scale ± 5μSTR ± 0.1% of offset |
| Resolution | 16 bit |
| Sampling Rate | 10μs / 100kS / s |
Bandwidth |
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| 3 dB bandwidth | >18 KHz |
| Analogue filter (low pass 60dB/decade) |
1KHz, 100Hz |
| Low pass (digital) | 1 Hz, 0.1 Hz, 0.01 Hz, 0.001 Hz |
Temperature
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DAQLOG Systems Ltd
Brixham Laboratory
Freshwater Quarry, Brixham, TQ5 8BA
Tel: 01803 611 854
