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8460 – 6 to 36 Ch Thermal Chart Recorder

High-speed, modular thermal chart recorder from Sefram.

SKU 8460 Category
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Description

8460 36-Ch Thermal Chart Recorder from B&K Precision and Sefram

The 8460 36-Ch Thermal Chart Recorder is a versatile high-speed data acquisition recorder featuring an integrated thermal printer. You can view measurement results on the 15.4-inch touchscreen display, save them on the large internal hard drive, and print them on continuous 270 mm wide-format paper. With three slots for dedicated input modules, you can configure this system to suit your specific application. Choose from any combination of universal, isolated high voltage, multiplexed, or strain gauge input modules for up to 36 analogue inputs.

For capturing high-speed or transient signals, the 8460 can simultaneously acquire and record 18 inputs at a sampling rate of 1 MSa/s in memory mode. A variety of start and stop conditions are available, including triggering based on analogue channel level or edge, logic channel state (high or low), or a designated date and time. Additionally, you can select various actions to perform when recording stops, such as sending emails, printing data in memory, or changing the setup file.

The secondary file function allows you to record low and high-speed data in separate files, which helps reduce file sizes and minimize storage usage. The intuitive user interface makes setup straightforward, and you can view measurement results graphically or numerically on the display while data is simultaneously recorded or printed. Built-in analysis tools include a mathematical function editor and a dedicated power quality analysis mode for analysing single-phase and three-phase power networks.

Display options encompass measured voltages and currents, calculated values, vector diagrams, and harmonics.

Digital Inputs and Alarm Outputs

To facilitate integration with external systems and devices, the 8460 provides digital inputs and alarm outputs. Logic inputs can be recorded alongside analogue data or used to start and stop recordings. Alarms can be configured based on any combination of analogue or logic channels, allowing you to control external devices or send email notifications.

Synchronisation and Connectivity

The 8460 also supports common synchronization protocols, including IRIG, NTP, and PTP (in client mode or server mode with the IRIG option installed). You can connect to the 8460 remotely via the built-in LAN interface or optional USB Wi-Fi. This allows you to control the unit, transfer data and configuration files, and view live data on a PC.

Product Features

  • Integrated 270 mm thermal paper printer
  • 6-36 analogue channels
  • Up to 1 MSa/s sampling rate
  • 4 measurement board types
    • Universal (6 channel)
    • Multiplexed (12 channel)
    • Strain Gauge (6 channel)
    • High Voltage (6 channel)
  • Temperature measurements with thermocouples and RTDs (Pt100, Pt200, Pt500, & Pt1000)
  • 500 GB internal hard drive
  • Power Analysis mode for 50 Hz, 60 Hz, 400 Hz, and 1kHz single and 3-phase electrical networks
  • Advanced calculations and user-defined math functions
  • 16 logic input channels
  • Wide 15.4” touchscreen display
  • Optional IRIG synchronisation
  • 4 USB host ports, 1 LAN interface, & 1 VGA output
  • Wi-Fi monitoring and control
Universal board
  • 6 isolated analogue channels
  • 14 bit, 1 Ms/s, Bandwidth: 100kHz
  • DC, RMS AC+DC Voltage (+-500V)
  • Frequency, Thermocouples
High voltage board
  • 6 isolated high voltage analogue channels
  • 14 bit, 1 Ms/s, Bandwidth: 26kHz
  • DC, RMS AC+DC Voltage (+-1000V)
  • Frequency
Strain Gauge board
  • Measurement of strain gauge bridges (4 and 6 wires) and half-bridge
  • Voltage up to 50V, thermocouples
  • 16 bit, 100ks/s, bandwidth 18kHz
Multiplexed board
  • Voltage up to 50V AC, DC
  • Pt100, thermocouples
  • 16 bit, 5ks/s, bandwidth 1kHz 

 

Options

 

Optional Accessories – see Specifications tab for details

 

General Features
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
(this function can be used with one universal board and accessories for current measurements)
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
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
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
Sensitivity 100mVrms. Min
Duty Cycle 10% min.
Frequency Range 10Hz to 100kHz
Basic Accuracy ±0.02% of full scale
Sampling
Resolution 14 bit
Sampling Rate 1Ms/s per channel max.
Bandwidth
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
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
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
(See Specification Sheet for information)
Sampling
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
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
Channels 12
Voltage
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
(See Specification Sheet for information)
Sampling
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
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
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
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
The unit is μSTR (micro strain) - 2000μSTR = 1 mV/V
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
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
(See Specification Sheet for information)
 
Accessories

Measurement Boards and Options

16 isolated logical channels module
12 channels multiplexed board
6 isolated channels universal board
6 isolated channels strain gauge / temperature board
IRIG board (FACTORY OPTION)
6 isolated channels high voltage board
Wi-Fi communication option

Current Clamps

Flexible clamp 30A / 300A / 3000A AC
Current clamp 200A AC, 10mV/1A, D 15mm
Current clamp 10A AC, 100mV/1A, D 15mm
Current clamp 1200A AC, 10mV/1A, D 50mm
Current clamp 1200A AC+DC, 1mV/1A, D 50mm
Current clamp 2000A AC, 1mV/1A, D 70mm

Shunts

Shunt 0.01 ohm 3A max
Shunt 0.1 ohm 1A max
Shunt 1 ohm 0.5A max
Shunt 10 ohms 0.15A max
Shunt 50 ohms 0.05A max
Shunt 0.01 ohm 30A max
Thermal Paper Standard
Long Life
High Sensitivity
With Pre-cut
Other Transportation case (Trolley)
Ethernet cable, 5 meters, crossed
Patch cord for logical channels
Banana / BNC female adaptor

 

8460 Specifications 8460 Specifications

8460 User Manual 8460 User Manual

8460 Programming Manual 8460 Programming Manual

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