? Explanation
  • add to Notepad
  • HTML-Datasheet
  • no Datasheet available
  • Productdetails as PDF

HCT 420-xxx-IS Schaevitz™ 2-wire Position Transmitter

Position Transmitter series HCT-IS

The HCT is a breakthrough position transmitter for use in hazardous locations. The two-wire loop configuration allows use with a single barrier and a minimum of wire or cable. True hermetic packaging of the coil assembly and electronics provides the maximum protection against adverse environments. A 4 … 20 mA transmitter output is the favored configuration for process industries and power plants. Six standard ranges are available from 0 to 0.25 inches (6.35 mm), to 0 to 10 inches (250 mm). Custom scaling is available for OEM requirements.

  • Non-linearity <0.5 %, 1% full range
  • 4 ... 20 mA, 2-wire operation
  • self-contained electronics
  • hermetically sealed housing
  • calibration certificate supplied with all models

Options

  • metric thread core
  • captive core option for convenient installation

Approvals

  • FM approved

Intrinsically safe approval classification:

  • Class I, Div. 1, Group A, B, C, D
  • Class II, Div. 1, Group G
  • Class III

Intrinsically safe maximum entity parameters (suggested barrier: R.Stahl)

  • Vmax = 32 VDC, Ci = 12 nF
  • Imax = 110 mA, Li = 0

SpecificationsHCT-IS

Measurement ranges:

0 … 6.35 mm to 0 … 254 mm

Non-linearity:
ranges up to 127 mm
range 254 mm

<0,5 % v.B.
<1,0 % v.B.

Output:

4 … 20 mA, 2-wire loop

Supply voltage:

12.75 … 28 VDC

Max. loop resistance:

600 Ω at 28 VDC

Output noise and ripple:

max. 25 µA peak-peak

Operating temperature range:

-25 … +85 °C

Temp. coefficient ofsensitivity:

<0.04 %/°C

Stability:

0.1 % after 30 minute warm up

Frequency response:

min. 50 Hz (-3 dB]

Controls:

none required

Electric termination:

6-pin hermetically sealed MS connector

Measurement Ranges

Model number Linear range, nominal
 

inch

mm

HCT420-250IS

0 … 0.25

0 … 6.35

HCT420-500IS

0 … 0.5

0 … 12.7

HCT420-1000IS

0 … 1.0

0 … 25.4

HCT420-2000IS

0 … 2.0

0 … 50.8

HCT420-5000IS

0 … 5.0

0 … 127

HCT420-10000IS

0 … 10.0

0 … 254

Mechanische Spezifikationen

Dimensions of position sensor HCT-IS

X: mates with Bendix PT06A-10-6S connector (nor included)

Y: direction of core movement for increasing output current

Z: nominal center position of core at null

All dimensions in inches, values in brackets in mm, approx. values.

These drawings are for information only and not intended for construction purpose. Please ask for detailed drawings.

Model number Weight, approx. Dimensions
 

Body

Core

A (Body)

B (Core)

C

P
 

oz

g

oz

g

inch

mm

inch

mm

inch

mm

inch

mm

HCT420-250IS

3.04

86

0.11

3

4.39

111.5

1.25

31.75

1.91

48.5

0.96

24.3

HCT420-500IS

3.36

103

0.18

5

5.51

140.0

1.80

45.7

3.11

79.0

1.52

38.7

HCT420-1000IS

4.38

124

0.29

8

6.92

175.8

3.00

76.2

4.46

113.3

2.23

56.6

HCT420-2000IS

5.38

153

0.38

11

9.18

233.2

3.80

96.5

6.72

170.7

3.36

85.2

HCT420-5000IS

6.51

185

0.38

11

12.28

311.9

3.80

96.5

9.90

251.5

4.91

124.6

HCT420-10000IS

12.93

367

0.62

18

21.59

548.4

6.20

157.5

19.22

488.2

9.56

242.8

Wiring

Wiring of LVDT HCT-IS

Ordering Information

Specify the HCT IS model with the appropriate range followed by the desired option number(s) added together.

Example: Model Number HCT 250 IS-206 is an HCT IS Series LVDT transmitter with a 0 to 6.35 mm range with a Metric Thread Core (006) and the captive core option (200).

Option number Description

006

metric thread core

200

captive core (1)

(1) available on HCT-250IS through HCT-5000IS models only

Captive Core OptionFor LVDT Series HCT

These LVDTs feature a captive core design that greatly simplifies installation. The design utilizes a core rod and bearing assembly that is captured and guided within the LVDT providing low friction travel throughout the stroke length. The assembly incorporates two Delrin bearings on the core rod traveling through the stainless steel boreliner. A bronze bearing on the front end utilizes a self-aligning feature to accommodate lateral LVDT movement during operation, the core rod and bearing assembly is field replaceable.

Captive Core option for LVDT series HCT-IS

Dimensions in inches, approx. values. These drawings are for information only and not intended for construction purpose.

Model Linear range Weight, approx. Dimensions, approx.
 

A

P

R
 

Inches

mm

oz

g

in

mm

in

mm

in

mm

HCT 420-250

0 … 0.250

0 … 6.25

3.74

106

4.63

117.6

1.30

33.0

4.36

110.7

HCT 420-500

0 … 0.500

0 … 12.5

4.66

132

5.75

146.1

1.86

47.2

4.75

120.7

HCT 420-1000

0 … 1.000

0 … 25

5.47

155

7.16

181.9

2.57

65.3

6.04

153.4

HCT 420-2000

0 … 2.000

0 … 50

6.85

194

9.42

239.3

3.88

93.5

7.87

199.9

HCT 420-5000

0 … 5.000

0 … 125

9.60

272

12.52

318.0

5.25

133.4

12.36

313.9
Information in the PDF datasheet (see above) may be more detailed. Due to continual product development, ALTHEN and partners reserve the right to vary the foregoing details without prior notice.