Technical data

Measurement performance

Hydrogen

Measurement range (in oil)

0–5000 ppmv

Accuracy 1) 2)

±10 % of reading or ±15 ppmv

(whichever is greater)

Repeatability

±10 % of reading or ±15 ppmv

(whichever is greater)

Minimum detection limit

15 ppmv

Typical long-term stability

3 % of reading / year

Cross sensitivity to other gases

< 2 % (CO2, C2H2, C2H4, CO)

Response time

63 % of full response: 2 h (when

sensor is not in reference cycle)

Warm-up time

2 h, 12 h for full specification

Sensor

Catalytic palladium-nickel alloy film

solid-state sensor

Moisture in oil

Measurement range (in oil)

0–100 %RS / aw 0–1

Response time (90 % of full response at

+20 °C (+68 °F) in still oil)

10 min

Sensor

HUMICAPâ 180L2

Accuracy (including non-linearity, hysteresis, and repeatability):

0–90 %RS

±2 %RS (aw ± 0.02)

90–100 %RS

±3 %RS (aw ± 0.03)

Temperature

Measurement range

−40 … +120 °C (−40 … +248 °F)

Accuracy at +20 °C (+68 °F)

±0.2 °C (0.36 °F)

Sensor

Pt1000 RTD Class F0.1 IEC 60751

1)

The H2 accuracy specified is the accuracy during calibration against gas in oil standard. Field

performance may be affected, for example, by variation in hydrogen solubility (partition coefficients)

between different mineral oils.

2) The H2 accuracy specified is applicable in the oil temperature specified (−20 … +75 °C (−4 … +167 °F)).

Inputs and outputs

Operating voltage

15–30 V DC, 24 V AC (±15 %) (power

supply input is galvanically isolated) 1)

Power consumption

Typical 4 W, maximum 12 W

Analog output (current) 1)

Channels

3 isolated 4–20 mA (loop-powering)

External load

Max. 500 Ω

Error status indication in case of device

error

3.5 mA default, user-configurable for

each channel

mA output accuracy at +20 °C (+68 F)

±0.125 % full scale

Temperature dependence of the analog

outputs

±0.006 % / °C full scale

Digital outputs 1)

Interfaces

Isolated RS-485 half-duplex

RS-485 (Service Port, non-isolated)

Protocols

Modbusâ RTU, DNP3, serial ASCII

Screw terminals

Wire size AWG 22-14

Single wire (solid) 1.5 mm2

Stranded wire (flex.) 1.0 mm2

Recommended wire torque 0.4 Nm

1)

Max. isolation voltage 1.5 kV DC.

Mechanical specifications

Mechanical connection on transmitter

1.5" NPT (male)

Cable gland (optional, for use with

Indigo520)

M20×1.5 for cable diameter 5 … 9 mm

(0.20–0.35 in)

Cable gland (optional)

M20×1.5 for cable diameter 8 … 11 mm

(0.31–0.43 in)

Cable gland (optional)

M20×1.5 for cable diameter

11 … 14.5 mm (0.43–0.57 in)

Conduit fitting (optional)

1/2" NPT

Interface cable (optional, pre-

assembled)

5 m (16 ft 5 in), 9.2 mm (0.36 in) outer

diameter

Interface cable (optional)

10 m (33 ft), 9.2 mm (0.36 in) outer

diameter

Interface cable (optional, for use with

Indigo520)

10 m (33 ft), 6.2 mm (0.24 in) outer

diameter

Housing material

AlSi 10 Mg

Transmitter weight without cables

4.1 kg (9.04 lb)

Self-diagnostics indication

Status LEDs, analog output, Modbus

Integrated data logging capabilities

Non-volatile memory, up to 44 years'

storage with default logging

Individual functional test reports

Calibration test reports for moisture,

hydrogen, and temperature; probe

leak test report (5 bara nominal)

Factory warranty

5 years

Operating environment

Oil type

Mineral oil / Natural ester oil /

Synthetic ester oil / Silicone oil

Operating temperature of probe head

−40 … +120 °C (−40 … +248 °F)

Operating temperature of enclosure

−40 … +60 °C (−40 … +140 °F)

Storage temperature

−40 … +60 °C (−40 … +140 °F)

Operating humidity

0–100 %RH, condensing

Pressure tolerance (probe, short-term) Max. 10 bara

Pressure tolerance (probe, continuous) Max. 4 bara

Integrated protection for short power

outages

> 3 s

IP rating

IP66

Compliance

EU directives and regulations

EMC, RoHS

Electromagnetic compatibility (EMC)

EN 61326‑1, industrial environment

CISPR 32 / EN 55032, Class B (when

DC powered)

Environmental

ISO 6270-1:2017, constant humidity

condensation atmosphere, C5-M

ISO 9227:2017, salt fog, C5-M

ISO 12994-6, Paints and varnishes —

Corrosion protection of steel

structures by protective paint

systems, part 6, C5

Compliance marks

CE, EAC, RCM, UKCA

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