HygroFlex HFM53

HF52 2-wire

HF53 3/4-wire

HF55 Digital

Probe type

HygroClip2 probe, all models

Probe cable extension

Passive: max. 5 m, active 100 m

Accuracy at 23 ±5 °C

±0.8 %rh / 0.1 K

Response time t 63

3-12 s, depending on probe type

Start-up

HF53, HF55: typically 3 s, HF52: 10 s

Measurement range

-100…200 °C / 0…100 %rh, probe dependent

Electronics operating range

-40…60 °C / 0…100 %rh (-10…60 °C with LCD)

Display (option)

Graphic display, backlit Parameters configurable (HF52: no backlight)

Trend indicator

Yes

Alarm functions (programmable)

Open or shorted sensor

Output signals

Scalable by user 0...1 V, 0...5 V, 0...10 V, 0(4)...20 mA

Digital outputs (optional)

Ethernet (LAN, WLAN), USB, RS485

Power supply

HF52: 10...28 VDC: 10 V+(0.02x load), HF53/55: 15…40 VDC /12…28 VAC

Power consumption

HF52: max 40 mA, HF53 <100mA, HF55 <300mA

Circuit type

HF52: 2 x 2 wires, HF53: 3/4 wires, HF55: digital

Min. / Max. load

V-signal: ≥1 kΩ/V / mA-signal: ≤500 Ω

Load compensation

Yes

Firmware update

Via service connector, requires HW4

Sensor diagnostics (Drift, state)

Programmable. Default: off

Sensor protection

Based on probe type

Maximum air velocity

20 m/s at probe

Humidity adjustment

With keypad / software: multi point

Temperature adjustment

With keypad: 1 point, by software:2 points

Data logging function

External, 2000 data point memory

Psychrometric calculations

All selectable

PC interface

With ROTRONIC interface cable HW4 compatible

Data processing by HW4

Graphs, statistical data and analysis, qualification etc.

Housing material / weight

ABS / Approx. 220g

Cable connections

1 x M16x1.5, on terminals

Standards

CE- compliant, 2007/108/EG

Audit trail, Electronic Records

FDA CFR21 Part 11 and GAMP compliant

IP protection rating & fire protection class

IP65 / Corresponds to UL94-HB