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