Dimensions	192 x102 x 52 mm
Operating range electronics	-40…85 °C / -10…60 °C (Models with display) 0…100 %rh, non-condensing
Accuracy at 23 ±5 °C	±0.8 %rh / ±0.1 K
Measuring range with interchangeable probe	0…100 %rh and -100…200 °C
Power supply / Power consumption	15 ... 40 VDC or 12 ... 28 VAC, 50-60 Hz 9 ... 36 VDC, with galvanic isolation 85 ... 265 VAC, 5 watts, 50-60 Hz with electrical isolation
Psychrometric calculations	All psychrometric values
Number of probe inputs	2
3rd party analogue probe input	2
Calibration / adjustment	with Software HW4
Initialisation time	Typically 1.9 sec.
Measurement interval	1 s (typical)
Engineering units displayed	1 or 2 decimal places
Display type	Optional graphics display. Presentation configurable.
Backlight	with Backlight
Keypad (with display only)	Yes
Alerting	Yes
Alarm indicators	Yes
Acoustical alarm (Beeper)	Yes
Real time clock w.backup battery	Yes
Memory size	10,000 pairs of readings (relative humidity and temperature) with HC2; 10,000 readings with 1-channel sensor
Exploitation software	ROTRONIC HW4.2
Trend indicator	Yes, for models with display
Probe adjustment by software	Yes, with service cable
Probe adjustment by keypad	display / keyboard
Firmware update	With internet and HW4 software
Data processing via HW4	with interface cables
Circuit type	3/4 wire
Analogue outputs scaleable by the user	Yes
Analog output signal (standard)	0…1 V, 0…5 V, 0…10 V, 0(4)…20 mA
Relay type and number	SPDT (single pole changeover); Max Switching voltage: 250 VAC*; Max Switching Current: 6A (*resistive load)
Configurable relay outputs	4
Communication interfaces	RS-485 / USB / LAN
Service Interface	Mini USB (UART)
Reverse voltage protection	Protection diode to V +
Max. nr. of devices in RS485 network	64
Max. cable length	5 m
Max. probe cable length	10 m
Probe material	Dependent on probe
Enclosure material	ABS
Cable connections	1x M16x1.5 or ½ "conduit adapter
IP protection rating	IP65 (except models with USB / Ethernet interface)
Fire protection class	Complies UL94-HB
FDA/GAMP compatibility	FDA 21 CFR Part 11 and GAMP compatible
Weight	540.0000