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Energy Technology

Fuel Cells

Chemical Engineering

Gas Engineering

Automotive

Pressure Transducers & Transmittersfor use with Hydrogen

HT-H2 Series

Designed for use with Hydrogen

Weldless 316L measuring cell

Large range of electrical and process connections

Intrinsically safe Ex certified option

The HT-H2 is a durable & rugged industrial pressure transmitter designed for use with Hydrogen gases. The piezo-resistive measuring cell has been adapted to preventembrittlement of the metallic surfaces caused by ionized Hydrogen.

mA & voltage signal outputs

Ranges from -1 bar up to 1000 bar

male socketM12x1

cable output

MSV/A

MSV/CDIN EN 175301-803

The piezoresistive stainless steel measuring cell has especially been adapted to the chemical and physical properties of hydrogen. The entire sensor consists of a single piece, which is designed to prevent embrittlement of the metal surface by ionised hydrogen. It is also completely vacuum tight and elastomer free.

Leaks caused by material fatigue on internal seals are thus eliminated from the outset. It has no disturbance due to

pressure transfer fluid and no large pressurised surfaces. The membrane is of a very robust design.

The link in to the connection pins are made by wedge wedge bonding and is therefore completely stable even at low temperatures, or when subject to shocks or vibrations. The measuring bridge evaluates the pressure via a mixed signal ASIC. The HT-H2 can also be used for other critical media.

TECHNICAL PARAMETER OVERVIEW

Vacuum and 1 bar to 1.000 bar relative pressure, sealed reference (0)4...20 mA, 0...(5)10 V, ratiometric and more M12x1, Packard Metri-Pack, wiring and many more precision < 0,5 % FS (limit-point calibration) medium-contacting parts of stainless steel 1.4404 response time < 1ms optionally with EX protection (ATEX, IECEx, CSA)

DESCRIPTION

Industrial Test & Measurement Equipment

Hydrotechnik UK Ltd. 1 Central Park, Lenton Lane, Nottingham, NG7 2NR. United Kingdom. t: +44 (0)115 9003 550 e: sales@hydrotechnik.co.uk www.hydrotechnik.co.uk

HYDROGEN PRESSURE TRANSMITTER

Stainless steel single piece measuring cell

SUITABLE FOR HYDROGEN

MEASURING CELL, FREE FROM WELDS & SEAMS

ELASTOMER SEAL FREE

LONG TERM DURABLE & ACCURATE

Industrial Test & Measurement Equipment

Hydrotechnik UK Ltd. 1 Central Park, Lenton Lane, Nottingham, NG7 2NR. United Kingdom. t: +44 (0)115 9003 550 e: sales@hydrotechnik.co.uk www.hydrotechnik.co.uk

TECHNICAL DATA

Pressure ranges (in bar) *) -1 1 1,6 2,5 4 25 40 60 100 160 250

400 600 1.000Excess pressure *) Burst pressure *) Type of pressure Measuring principle Medium contacting parts

Internal seals Pressure-transmitting medium Housing material Process connections *)

Electrical connections *)

Mass Output signal, supply voltage and load resistance *)

Response time (T90) Total error **)

min. 2-fold; pressure range from 1,000 bar: min. 1.5-fold 3-fold; pressure range from 1,000 bar: 2-foldrelative pressurepiezoresistive (semiconductor on stainless steel) stainless steel 1.4404 (316L)(others on request) none (single piece solid stainless steel measuring cell)none (dry stainless-steel measuring cell) 1.4301 / AISI 3041/4" and 1/2" NPT, 9/16"-18 UNF-2A with sealing cone, 9/16"-18 UNF-2A HF 4 G1/4" BSP and G1/2" BSP acc. to EN 837 (manometer nipple) or to ISO 228-1 plug connectors acc. to EN 175301-803 Form A and C, M12x1,Packard Metri-Pack, AMP, German, field housing, wire output portapprox. 120 g4 … 20 mA, 2-wire RA ≤ (UB-10V) / 20 mA (supply 10 … 32 V DC) 0 … 10V, 3-wire RL> 5 kΩ (supply 12 … 32 V DC) 0 … 5 V, 3 -wire RL> 2,5 kΩ (supply 7 … 32 V DC) 0,5 … 4,5 V ratiometric, 3 Leiter RL> 4,7 kΩ (supply 5 V DC +/- 10%) < 1 ms≤ 0.5 % FS after limit-point calibration (≤ 0.35 % FS BFSL)acc.to DIN EN 61298-2 (incl. non-linearity, zero offset, hysteresis and repeatability) in the compensated range≤ 0.2 % FS after limit-point calibration (≤ 0.1 % FS acc. to BFSL)≤ 0,10 % FS≤ 0,15 % FS ≤ 0,15 % FS / 10K ≤ 0,15 % FS / 10K ≤ 0.1 % FS per year in referential conditions

Non-linearity Non-repeatability Hysteresis Medium TK of the offset Medium TK of the range Long-term durability Permissible temperatures

Temperature of the medium - 40 … + 125°C - 40 … + 105°C - 40 … + 125°C

Ambient temperature Storage temperature Compensated range

CE-conformity Pressure devices

0 … + 80°C EC Directive 89 / 336 / EEC 2014 / 68 / EU2004 / 108 / EC acc. to EN 61326 g 1000 acc. to IEC 60068-2-32 g 20 acc. to IEC 60068-2-6

EMC directive Shock resistance Vibration resistance Electrical protection

Dielectric strength Short circuit resistance Reverse polarity protection

IP ratings *)

350 VDCOut+ / U

B- (for 1s)UB+ / UB in place

plug connections acc. to EN 175301-803 IP65, M12 x 1, Packard Metri-Pack, AMP, German, cable IP 66 and IP 67.The IP types specified in the data sheets generally apply to a mating plug connected. An aerated counter plug and / or wire is usually required for relative transmitters to enable atmospheric pressure balance. From a pressure range of 60 bar, no ventilated mating connector and / or cable is necessary.

*) Others on request; **) Special custom made solutions with optionally higher precision on request

Industrial Test & Measurement Equipment

Hydrotechnik UK Ltd. 1 Central Park, Lenton Lane, Nottingham, NG7 2NR. United Kingdom. t: +44 (0)115 9003 550 e: sales@hydrotechnik.co.uk www.hydrotechnik.co.uk

PROCESS CONNECTION EXAMPLES

ELECTRICAL CONNECTION EXAMPLES

Supply voltage

Output signal

Default assignment

Electrical connection

Model type

Process connection

Pressure ranges Pin

M12x1 (S763) Packard Metri-Pack EN 175301-803-A Cable output Field housing (optionally 320° rotatable)

SYSTEM CONNECTION OVERVIEW

- +

A A V

10…32 V DC (8)12…32 V DC

@5 V DC

g., DISxe. e.g., DISx

4…20 mA 0…20 mA

1 3 1 2 3

0,5...4,5 V rat

r / b w

Packard ISO 4400 Cable

HT-H2-I2 HT-H2-I3 HT-H2-U3

9/16"-18 UNF-2A HF 4 9/16"-18 UNF-2A with sealing cone

1/4-18 NPT

Ranges from -1 up to 1000 bar

5 9,5

G1/4 B, EN 837

2 4

22

SW 22

6

3 6

23 27

G1/2 B, EN 837

SW 27

20 2

7

SW 22

1/2-14NPT

14,

5 2

1,5 SW 22

1/4-18NPT

55°

24

9/16-18UNF-HF4

SW 22

55° ±1°

9/16"-18UNF-2A with sealing cone

11,

5 20 SW 22

47 22 6

3,5

76,

8

22 22 5

0 L

22

82

52

2222

54