A5E00852382

General information

Based on DINВ ENВ 61207/IECВ 1207. All data based on digital gas mixture H₂ in N₂

Measuring ranges

4, internally and externally switchable; automatic measuring range switchover also possible

Span

Application-dependent (see ordering data)

Measuring ranges with suppressed zero point

Application-dependent (see ordering data)

Operating position

Front wall, vertical

Conformity

CE marking in accordance with EN 50081‑1/EN 50081‑2 and RoHS

Design, enclosure

Degree of protection

IP65 according to ENВ 60529

Weight

Approx. 25 kg

Electrical characteristics

EMC interference immunity (electromagnetic compatibility)

In accordance with standard requirements of NAMUR NE21 (08/98) and ENВ 61326

Electrical safety

In accordance with ENВ 61010-1; overvoltage category II

Auxiliary power (see nameplate)

100В VВ AC -10% ... 120В VВ ACВ +10%,
48В ...В 63В Hz

or

200В VВ AC -10В %В ...В 240В VВ ACВ +10В %,
48В ...В 63В Hz

Power consumption

• Approx.В 25В VA (gas connection block unheated)
• Approx.В 330В VA (gas connection block heated)

Fuse values (gas connection unheated)

100В ...В 120 V

F3 1T/250

F4 1T/250

200В ...В 240В V

F3 0.63T/250

F4 0.63T/250

Fuse values (gas connection heated)

100В ...В 120В V

F1В 1T/250

F2 4T/250

F3 4T/250

F4 4T/250

200В ...В 240В V

F1 0.63T/250

F2 2.5T/250

F3 2.5T/250

F4 2.5T/250

Gas inlet conditions

Sample gas pressure

800В ...В 1В 100В hPa (absolute)

Sample gas flow

30В ...В 90В l/h

Sample gas temperature

Min. 0 to max. 50В В°C, but above the dew point

Temperature

• of the measuring cell (sensor)

70 ВєC

• of the measurement cell block (base)

80 ВєC (heated)

Sample gas humidity

< 90% relative humidity

Purging gas pressure

• Permanent

165В hPa above ambient pressure

• For short periods

Max. 250В hPa above ambient pressure

Time response

The dynamic and measuring response refers to the measurement of H₂ in N₂ (based on the sample gas pressure 1В 000В hPa absolute, sample gas flow 0.5В l/min, and ambient temperature 25В В°C

Warm-up period

<В 30В min at room temperature (the technical specification will be met after 2 hours)

Delayed display (T₉₀)

Approx. 35В s (including dead time)

Electrical damping

0В ...В 100В s, configurable

Dead time (the diffusion to the probes is the determining variable)

Approx. 34В s

Measuring response

The dynamic and measuring response refers to the measurement of H₂ in N₂ (based on the sample gas pressure 1В 000В hPa absolute, sample gas flow 0.5В l/min, and ambient temperature 25В В°C

Output signal fluctuation
(3Пѓ value)

<В В±В 1% of the smallest possible span according to rating plate with electronic damping constant of 1В s

Zero point drift

<В В±В 1% of the current span/week

Measured-value drift

<В В±В 1% of the smallest possible span (according to rating plate)/week

Repeatability

<В В±В 1% of the current span

Detection limit

1% of the smallest possible span according to rating plate

Linearity error

<В В±В 1% of the current span

Influencing variables

Based on sample gas pressure 1В 000В hPa absolute, 0.5 l/min sample gas flow and 25В В°C ambient temperature

Ambient temperature

<В 2%/10В K referred to smallest possible span according to rating plate

Accompanying gases

Deviation from zero point (for influence of interfering gas, see section "Cross-interference")

Sample gas flow

0.2% of the current measuring span with a change in flow of 0.1 l/min within the permissible flow range

Sample gas pressure

<В 1% of the span with a change in pressure of 100В hPa

Auxiliary power

<В 0.1% of the output signal span with rated voltage В±В 10%

Electrical inputs and outputs

Analog output

0/2/4В ...В 20В mA, floating; load max. 750В О©

Relay outputs

6, with changeover contacts, freely configurable, e.g. for measuring range identification; load: 24В V AC/DC/1В A, floating

Analog inputs

2, dimensioned for 0/2/4 … 20 mA for external pressure sensor and correction of cross-interference

Digital inputs

6, designed for 24В V, floating, freely configurable, e.g. for measuring range switchover

Serial interface

RSВ 485

Options

AUTOCAL function with 8 additional digital inputs and relay outputs, also with PROFIBUSВ PA (on request) or PROFIBUSВ DP (on request)

Climatic conditions

Permissible ambient temperature

-40В ...В +70В В°C during storage and transportation, 5В ...В 45В В°C in operation

Permissible humidity (dew point must not be fallen below)

<В 90% relative humidity as annual average, during storage and transportation