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The Models 5D40 and 5D40V are wide-range general-purpose instruments for conditioning the signal received from a Magnetic Pickup, quadrature sensor, Hall-Effect device, photocell, TTL sensor signal, or other external AC voltage or pulse train source.

The 5D40 delivers filtered analog output of ±5 VDC, while the 5D40V produces ±10 VDC.

For both models, the DC input may be either differential (floating) or grounded (single-ended).  Exceptional stability and accuracy over an unusually wide range of voltage input levels and grounding configurations are achieved through

	precisely regulated, remotely sensed excitation
	chopper-stabilized low-drift amplification
	configurable low-pass active filtering
	"absolute" and "two-point" software-based calibration
	effective signal isolation and ESD protection.

For both the Model 5D40V and the Model 5D40S (the "S" Option version of the Model 5D40), a 10-pin header for a Phoenix Style screw-terminal connector replaces the Model 5D40's standard DB25 connector for the module's power, configuration, logic, and analog output wiring.  Ensuring secure cable connections to individual 5D modules, these versions are intended primarily for single-point or single-mount module applications.  Since the logic "enable" line is not provided in this case, both analog outputs are continuously available for both the 5D40V and the 5D40S.

View / download complete Model 5D40/5D40V Instruction Manual

The Model 5D40 is used for frequency to voltage requirements for full scale input frequency ranges from 200 Hz to 400KHz. The 5D40 incorporates a unique cycle by cycle tracking feature which  extends the low level measurement down to 0.1% of full scale while providing a stable 0 to +/- 5 Vdc or 10 Vdc analog output.

A stable, remotely sensed excitation of ±5 VDC is provided to power sensors and other frequency type transducers that may require it.  With an externally powered transducer, input isolation yields an operating common-mode range of up to 1500 V (when using the regulated excitation provided by the 5D40 or 5D40V module, see the table below).

For steady indication and smooth, dependable control action, the 5D40(V) can provide a true average value of the measured variable, even in the face of substantial dynamic content.  As with most 5D Series modules, two high-level, noise-free analog outputs are provided.  For the 5D40 (only), one output may be switched on and off by setting the logic state of an "enable" line.  For the 5D40V, both outputs are continuously available.

Both modules feature

	Powerful low-pass active filtering, independently selectable for each output, for removal of unwanted high-frequency measurement-signal components and the elimination of aliasing errors, if the module's output is subsequently sampled
	High input impedance on all ranges to eliminate cable resistance as a source of error (allowable cable length has virtually no practical limits)
	High noise rejection, eliminating errors from common-mode pickup and ground-loop coupling, with 1500 VAC isolation between input and output terminals and between I/O and power supply / communications terminals
	High ESD immunity and extensive EMI protection further assure data integrity in harsh industrial environments

Internal "Absolute" Calibration Ensures High Accuracies, Without Elaborate Trial and Error Procedures

To calibrate a 5D40(V), you need only use the Configurator software provided with the unit to specify the desired relationship between the module's measured engineering units and its ±5-VDC or ±10-VDC output, given the full-scale frequency range for which it is currently set.  The user can "configure" the modules' input frequency range, trim zero and span correction (if desired), select input sensitivity thresholds and filter cut-off values to maintain a stable but responsive analog output. 

Guaranteed "absolute" calibration accuracies for a properly configured 5D40(V)'s input ranges are given in the Specifications, below.  By virtue of the unusually high stability of the 5D40(V) instrument, even higher accuracies can be achieved with additional software-based "two-point" calibration.

Model 5D40(V) Specifications  [Top ] (Click here for 5D Series General Specifications)
Transducer Types	Virtually any transducer producing an AC or TTL levle output, either externally powered or with power requirement of +/- 5 Vdc @ 70 mA or less.
Input Ranges (Nominal, Full-Scale)	See table, below; selectable when the 5D40(V) is configured.  Accuracy is given as % of full-scale overall expected maximum error, following calibration.
Range (Frequency Hz f.s.) Accuracy 200 0.02 300 0.02 400 0.02 500 0.02 750 0.02 1000 0.02 1500 0.02 2000 0.02 3000 0.02 4000 0.02 6000 0.02 8000 0.02 10000 0.02 15000 0.02 20000 0.02 30000 0.02 40000 0.02 60000 0.02 80000 0.02 100000 0.02 150000 0.02 200000 0.02 300000 0.02 400000 0.02
Excitation	10 VDC (= ±5 VDC) ± 2.0% @ up to 70 mA
Accuracy	Dependent on range; see table, above
Amplifier
Common-Mode Range	±1500 V for externally powered transducers; when excitation is provided by the 5D40(V) module, see table, above
Input Impedance	Greater than 200 KΩ on all ranges
Offset	Initial: ±0.02% of full scale Vs. temperature: ±25 ppm/°C Vs. time: ±10 ppm/month
Gain Accuracy	±0.02% of full scale typical, following calibration; see table, above
Gain Stability	Vs. temperature: ±25 ppm/°C Vs. time: ±10 ppm/month
Analog Filters	0.2, 2, 20, 200, or 2000 Hz, independently selectable for each output
Analog Outputs	Filtered ± 0 to 5 VDC (for the Models 5D40 and 5D40S) or ± 0 to 10 VDC (for the Model 5D40V), with linearity maintained for 20% overrange.  For the Model 5D40 (only), Output B is switchable via logic "Enable" line.
Logic-Input Function    (see also General 5D Specs)	Enable The following diagrams show 5D40 logic input connections for switch closure (no external supply) and active TTL logic, respectively, using the standard module DB25 connector.  For the "Enable" function, see 5D Analog Outputs and the description of the MODULE IDENTIFICATION (MID) command. NOTE: For the Models 5D40V and 5D40S, the Enable function is not provided, and both analog outputs are continuously available.