Type 8137

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DC reverse polarity protection

Yes

Output signal

4…20 mA/HART

Signal resolution

0.3 µA

Range of the output signal

3.8…20.5 mA/HART (default setting)

Load resistor

(U

n - Umin.)/0.022 A

Fault signal

Current output: mA value unchanged, 20.5 mA, 22 mA or < 3.6 mA (adjustable)

Max. output current

22 mA

Residual ripple (at DC)

• For 9.6 V < U

n < 18 V: ≤ 0.7 Veff (16…400 Hz)

• For 18 V < U

n < 35 V: ≤ 1.0 Veff (16…400 Hz)

Voltage supply cable

• Cable diameter: 5…9 mm

• Wire cross-section (spring-loaded terminals):

– massive wire, stranded wire: 0.2…2.5 mm2 (AWG 24…14)

– stranded wire with end sleeve: 0.2…1.5 mm2 (AWG 24…16)

Medium data

Process temperature

- 40 °C…+ 130 °C (- 40 °F…266 °F)

Process pressure

Vessel pressure: - 1…40 bar (- 100…4000 kPa/- 14.5…580 psi) or according to flange rules

Dielectric constant (min.)

εr > 1.6

Process/Port connection & communication

Process connection

• Thread G 1½" or NPT 1½"

• Flange DN 50 or DN 100 DIN 2501, 2" or 4" ANSI B16.5

Electrical connection

Cable glands M20 x 1.5

Approvals and Certificates

Standards

Degree of protection according to

IEC/EN 60529

IP66/IP67 with M20 x 1.5 gland mounted and tightened

Overvoltage category

according to IEC 61010-1

Category III

Protection class according to

IEC 61010-1

Class III

Directives

CE directives

The applied standards, which verify conformity with the EU Directives, can be found on

the EU Type Examination Certificate and/or the EU Declaration of conformity (if applica-

ble)

NAMUR recommendations

• NE21 – Electromagnetic compatibility of equipment

• NE43 – Signal level for fault information from measuring transducers

• NE53 - Compatibility of field devices and display/adjustment components

• NE107 - Self-monitoring and diagnosis of field devices

Approvals

ATEX

EN 60079-0, EN 60079-11, EN 60079-26

Detailed information can be found in chapter “2.1. ATEX-Certification” on page 5.

Environment and installation

Ambient temperature

Operation and storage: - 40 °C…+ 80 °C (- 40 °F…+ 176 °F)

Relative air humidity

20…85 %, without condensation

Height above sea level

• By default: max. 2000 m

• With connected overvoltage protection: max. 5000 m

Pollution degree

Degree 4 (when used with fulfilled housing protection)

1.) Outside the specified beam angle, the energy level of the radar signal is 50 % (- 3 dB) less

2.) Time span after a sudden measuring distance change by max. 0.5 m in liquid applications, max 2 m with bulk solids applications, until the output signal has taken for the

first time 90 % of the final value (IEC 61298-2)

3.) Already included in the measuring deviation