4-20 mA LVDT Position Sensor Hermetically Sealed HSI-750 Series

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SKU: HSI-750

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HSI-750 Series:

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Product Info:

The HSI 750 Series of 3/4 inch diameter, loop-powered 4-20 mA LVDT position transmitters is designed for a wide range of position monitoring and feedback applications. These rugged and robust devices are constructed entirely of TIG welded stainless steel and hermetically sealed against hostile environments to IEC standard IP-68. The input/output connections are made through a sealed axial connector, and a mating connector plug is supplied with each unit.

Features

Standard measurement ranges of 1 to 10 inches
4 to 20 mA input/output
Non-linearity of ±0.25% of FRO or better
Hermetically sealed for harsh environments
In-line connector, mating plug included

Applications

Control Valve Position Indication
Waste Water Treatment Facilities
Pumping Station Controls
Fossil Fueled Power Plants

Brand Name: Macro Sensors
Made in: USA

Catalog Short Form:

catalog_shortform_08.pdf

Datasheet:

hsi_750_datasheet.pdf

HSI 750 Series transmitters offer the frictionless operation, high resolution, excellent repeatability, and low hysteresis associated with LVDT technology, along with the convenience and simplicity of precalibrated 4-20 mA current loop operation. Units operate either as 2-wire loop-powered or 3-wire sourcing externally powered. The built-in electronics operate over a wide range of loop supply voltages and resistances, and are designed to operate with many PLCs, digital indicators, A/D converters, computer-based data processors, and QC data collection systems.

Available in ranges of 1 inch (25 mm) to 10 inches (250 mm), the linearity error for an HSI 750 Series sensor is ±0.25% of full range output or better using a statistically best-fit straight line derived by the least squares method. A version with </=±0.10% linearity error is also available.

Features

Standard measurement ranges of 1 to 10 inches
4 to 20 mA input/output
Non-linearity of ±0.25% of FRO or better
Hermetically sealed for harsh environments
In-line connector, mating plug included

Applications

Control Valve Position Indication
Waste Water Treatment Facilities
Pumping Station Controls
Fossil Fueled Power Plants
Agri-chemical Dispensing

GENERAL SPECIFICATIONS

Loop Supply Voltage	9 V to 28 V DC
Loop Resistance (Min.)	50 Ohms
Output	4-20 mA
Output Noise & Ripple	</= 10 µArms
Frequency Response (-3dB)	50 Hz (nominal)
Linearity Error	</= ±0.25% of FRO </= ±0.10% optional
Repeatability Error	<0.025% of FRO
Hysteresis Error	<0.025% of FRO
Operating Temperature	-20°F to +85°C
Thermal Coefficient of Scale Factor	-0.027%/°C (nominal)
Thermal Coefficient of Zero Offset	-0.01%/°C (max)
Vibration Tolerance	20 g to 2 kHz
Shock Survival	100 g, 11 ms

UNIT SPECIFICATIONS

PARAMETER	UNIT OF MEASURE	HSI 750 -1000	HSI 750 -2000	HSI 750 -4000	HSI 750 -6000	HSI 750 -10000
Nominal Range	Inches	1.00	2.00	4.00	6.00	10.00
Nominal Range	Millimeter	25	50	100	150	250
Scale Factor	mA/Inch	16.0	8.0	4.0	2.67	1.6
Scale Factor	mA/Millimeter	0.63	0.315	0.157	0.105	0.063
Dimension "A"	Inches	7.35	8.70	12.20	14.95	19.95
Dimension "A"	Millimeter	186.7	221.0	309.9	379.7	506.7
Dimension "B"	Inches	3.45	3.45	5.30	6.20	6.20
Dimension "B"	Millimeter	87.6	87.6	134.6	157.5	157.5
Dimension "S"	Inches	2.04	2.31	2.97	3.38	3.93
Dimension "S"	Millimeter	51.8	58.7	75.4	85.9	99.8
Weight, Body	Ounces	4.4	5.4	7.3	9.3	13.2
Weight, Body	Grams	124	153	207	263	374
Weight, Core	Ounces	0.40	0.40	0.65	0.78	0.78
Weight, Core	Grams	11.6	11.6	18.4	22.1	22.1

4-20 mA LVDT Position Sensor Hermetically Sealed HSI-750 Series

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4-20 mA LVDT Position Sensor Hermetically Sealed HSI-750 Series

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Harold G. Schaevitz Industries LLC

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