WIKA N-10, N-11 Data sheet

Hazardous Area Non-incendive Transmitters Model N-10, N-11

Applications

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Natural gas compressors

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Wellhead monitoring

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Pipeline pressure

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General industrial applications

Special Features

Electronic Pressure Measurement

Datasheet N-10, N-11

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FM /CSA approved Non-incedive for Class I Division 2,

Dust-ignitionproof for Class II, Division 1

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Engineered to meet the harsh demands of

gas compressor applications

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Does not require the use of intrinsically safe barriers

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NACE MR-01-75 compliant wetted parts

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4-20 mA or low power 1-5 volt output signals available

Description

Type N-10 pressure transmitters are specically designed

to meet the durability and performance requirements of gas compressor systems. These pressure transmitters feature an industry standard 4-20 mA 2 wire signal output, NEMA 4X (IP

67) weather protection and are extremely resistant to pressure spikes, vibration and moisture intrusion. NACE MR-01-75

compliance provides extra resistance against sulde stress

cracking when exposed to gases containing sulphur.

Type N-11 pressure transmitters feature a at, non-clogging diaphragm. This is designed for use with viscous uids or

media containing particulates that could clog the pressure port of the standard NPT version.

Left: N-10 pressure transmitter with NPT connection

Right: N-11 ush diaphragm pressure transmitter

The transmitters are engineered to meet Class I Division 2 non-incendive protection requirements, as well as Class II Division 1 dust-ignition protection requirements in hazardous environments. Each undergoes extensive quality control testing and calibration to achieve a linearity of <

0.25% full scale. In addition, each pressure transmitter is temperature compensated to assure accuracy and long term stability when exposed to severe ambient temperature variations.

Datasheet N-10, N-11 · 11/2016

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Specications Type N-10 / N-11

Pressure range 5 psi 10 psi 15 psi 25 psi 30 psi 60 psi 100 psi 200 psi 300 psi Maximum pressure* 29 psi 58 psi 72 psi 145 psi 145 psi 240 psi 500 psi 1,160 psi 1,160 psi Burst pressure** 35 psi 69 psi 87 psi 170 psi 170 psi 290 psi 600 psi 1,390 psi 1,390 psi Pressure range 500 psi 1,000 psi 1,500 psi 2,000 psi 3,000 psi 5,000 psi 8,000 psi110,000 psi115,000 psi Maximum pressure* 1,160 psi 1,740 psi 2,900 psi 4,600 psi 7,200 psi 11,600 psi 17,400 psi 17,400 psi 21,750 psi Burst pressure** 5,800 psi 7,970 psi 11,600 psi 14,500 psi 17,400 psi 24,650 psi234,800 psi 34,800 psi 43,500 psi

{vacuum, gauge pressure, compound ranges, and absolute pressure references are available}

Materials

 Wetted parts

 N-10  N-11

 Case

Nace compliant Stainless steel (> 1,000 psi stainless steel and Elgiloy) Stainless steel; O-ring: NBR {Viton or EPDM} Stainless steel

Internal transmission uid Synthetic oil (only for pressure ranges up to 300 psi or ush diaphragm units)

Power supply U

DC V 10 < UB ≤ 30 for 4 ... 20 mA, 2-wire

6 < U

< 30 for 1 ... 5 V, 3-wire low power version

Signal output and 4…20 mA: RA ≤ (UB - 10 V) / 0,02 A with R maximum load R

1 ... 5 V, 3-wire: RA > 10 kOhm

Response time (10 ... 90 %) ms ≤ 1 (≤ 10 ms when media temperatures are below –22 ° F ( -30 °C) for pressure

ranges up to 300 psi or with ush diaphragm)

Isolation voltage Accuracy

V % of span

500 ≤ 0.25 (BFSL)

% of span ≤ 0.5 (limit point calibration) Non-repeatability % of span ≤ 0.05 Hysteresis % of span ≤ 0.1 1-year stability % of span ≤ 0.2 (at reference conditions) Permissible temperature of

 Medium  Ambient  Storage

-22 ... +176 °F -30 ... +80 °C (-40 °C only with NPT threads)

-22 ... +176 °F -30 ... +80 °C

-22 ... +221 °F -30 ... +105 °C

Compensated temp. range 32 ... +176 °F 0 ... +80 °C

Temperature coecients in

compensated temp range:  Mean TC of zero  Mean TC of range Approval authority

% of span ≤ 0.2 / 10 K (< 0,4 for pressure range < 100 InWC)

% of span ≤ 0.2 / 10 K

 Factory Mutual (FM) non-incendive with entity approval for:

Class 1, Division 2, Groups A, B, C, D

 Dust ignition-proof for Class II, Division 1, Groups E,F and G

Vmax=30V, Imax=30mA, Pi=1W

Maximum electrical ratings

For 2wire system: Ci=22nF (ying leads: +0.2 nF/m) , Li=0mH (ying leads: +2µH/m)

For 3wire systems: Ci=140nF (ying leads: +0.2 nF/m) , Li=0mH (ying leads: +2µH/m)

FM Standards according to FMRC 3600, 3611, 3810 Ingress protection NEMA 4X (IP 67) Shock resistance g 1,000 according to IEC 60068-2-27 (mechanical shock) Vibration resistance g 20 according to IEC 60068-2-27 (vibration under resonant conditions) Wiring protection Protected against reverse polarity, overvoltage, and short circuiting Weight

* Pressure applied up to the maximum rating will cause no permanent change in specications but may lead to zero and span shifts

**Exceeding the burst pressure may result in destruction of the transmitter

1) Only Type N-10.

2) For Type N-11: the burst pressure is limited to 21,000 psi unless the pressure seal is accomplished by using the sealing ring underneath the hex.

3) Includes non-linearity, hysteresis and repeatability. Limit point calibration performed in vertical mounting position with pressure connection facing down.

4) Transmitters will function when exposed to these extended temperature ranges. The media, when exposed to temperature extremes, may change

characteristics that eect transmitter performance.

5) Wetted parts comply with recommendations per NACE MR0175. Environmental limits apply to certain materials. Consult latest standard for details. { } Items in curved brackets are options available at additional cost.

lb 0.4

in Ohm and UB in Volt

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