ISEV-4
Isolated Voltage Input Module
4-Channel Isolated High Voltage Module
The ISEV-4 is a 4-channel isolated voltage input module with independent ADC’s per channel and 5 configurable measurement ranges. Providing maximum effective measurement resolution from the millivolts up to 400 Volts (250 Vrms), the ISEV-4 is ideal for applications requiring high accuracy and resolution.
Isolated Voltage Input Module Key Benefits
- 4 high voltage inputs (250 Vrms or ± 400 V DC)
- Simultaneous sampling at up to 200 kS/s/ch
- Full 16-bit resolution over the selected input range
- 0.04% accuracy (10V, 20V, and 40V attenuators)
- 250 Vrms or DC Cat II Rated Isolation
- Built-in counter and timer functions
Compatibility
Daxus® DXS-100 and SmartCorder® DDX-100 data acquisition systems
Typical applications
- Research and Development
- Product verification and validation
- Applications requiring high accuracy AC or DC measurements
+-Specifications
ANALOG INPUTS
- Channels Per Module: 4
- Connector: Guarded banana jacks (red/black)
- Input: Single-ended, AC/DC coupled
- Bandwidth: 40 kHz (-3dB)
- Sample Rate: 200 kS/s/ch
- Rated Isolation: 250 VRMS or DC, Cat II (iso-common to chassis and other iso-commons)
- A/D: 16 bit SAR (one per channel)
- Anti-Aliasing Filter: 4 pole Bessel
- Cold Start Drift: < 0.1% of attenuator (60 min.)
- AC Coupled 3dB Point: < 0.54 Hz
- Off Ground Measurements: Yes
- Zero Suppression: Digital.
- Attenuator Ranges: 1, 10, 100, 200 and 400 Volt
- Measurement Ranges: ± 400 V (400 VFS or 800 VFS w/ zero offset)
± 200 V (200 VFS or 400 VFS w/ zero offset)
± 100 V (100 VFS or 200 VFS w/ zero offset)
± 10 V (10 VFS or 20 VFS w/ zero offset)
± 1 V (1 VFS or 2 VFS w/ zero offset. 0.1V min span)
- Max Rated Input: 250 Vrms or DC, Cat II
- Max Transient Input: ± 800 V peak (not to exceed 250Vrms)
- DC Accuracy (25°C): ± 0.06% of attenuator
- Overshoot: < 0.25%
- Intrinsic Noise (pk-pk): < 0.02% of attenuator + .02% of span
(400V through 10V atts)
< 0.16% of attenuator + .02% of span (1V att)
- IMR at 60 Hz: Better than -85 dB
- Min Input Impedance: > 1 Megohm
COUNTER TIMER
- Frequency Counter Capability: Yes, all channels. Software selectable.
- Counter Modes: Gated time frequency counter, cycle based frequency counter, pulse event, counter, gated pulse event counter, quadrature counter, pulse width detector, period width detector, duty cycle detector, edge separation detector.
- Frequency Ctr Range (menu): Up to 80 kHz
- Frequency Ctr Range (spec’d): 2 – 40 kHz
- Frequency Ctr Accuracy: ± 0.07% of Measurement + .002 Hz
- Min Counter Input Amplitude: 25% of span for freq and pulse counters, 90% of span for all other modes
- Pulse Counter Range: 4000000000 maximum. (16 bit display resolution)
- Pulse Width Accuracy: .002% of measurement + .00167% of span + 0.7 μs
- Pulse Width Range: 25 μs – 2500000
- Edge Separation Accuracy: .002% of measurement + .00167% of span + 0.7 μs
- Edge Separation Range: 25 μs – 5000000 μs
- Period Width Accuracy: .001% of measurement + .00167% of span + 0.7 μs
- Period Width Range: 25 μs – 100000 μs (10 Hz – 40 kHz)
- Duty Cycle Accuracy: .5% (Inputs in the 1 Hz – 5 kHz range with 5% – 95% duty cycles)
- Counter Timebase: 50 MHz
Optional accessories
 | GL-40 General Use Lead Set, P/N: 13442000 |
 | LC-40 Test Leads/Clips (Pair of test leads and pincer clips – one red and one black), P/N: 13441003 |
| LC-40S Test Leads/Spade Connectors (Pair of test leads with spade connector for #8 screw), P/N: 13441201 |
 | ADP-4810 High Voltage Probe for up to 1000 Vrms, P/N: 25765000 |
 | SC-DAX Soft Carry Case for Daxus DXS-100, P/N: 42737000 |
 | HC-DXS Hard Carry Case for Daxus DXS-100, P/N: 41047300 |
 | SC-DDX Soft Carry Case for SmartCorder DDX-100, P/N: 41047200 |
Available services
- 1-Year extended warranty
- Factory calibration service
