• Single-line display of hours and minutes in rhythmic change with air- and water temperature
• 12 or 24 hours mode
• Automatic summer-/winter time changes
• Automatic brightness adjustment
• Modes of operation:
  Autonomous quartz clock
  Slave clock (controlled from a master clock through 24 V DC polarised minute impulses or time code)
  Synchronisation with DCF or GPS receiver
• Red intensive dot matrix display with 190 mm digit height
• Readability up to 75 m
• Display interval between 1 to 19 s adjustable
• Temperature calibration adjustable
• Including radio remote control unit with 3 push-buttons for wireless adjustment of all parameters
• Including PT100 air temperature sensor
• Including water temperature sensor (surface type e.g. for influent pipe)

Technical data:

• Housing: Black aluminium case for wall or ceiling mounting via mounting holders
• Applicability: For mounting in moist rooms or outdoors
• Accuracy: ±0.1 s / 24 h
• Internal data memory: 48 h
• Current consumption: 5 mA at 24 V DC impulse operation
• Power supply: 230 V AC / 50 Hz ±10%
• Measuring range temp.: -30 °C … +60 °C (measuring every minute)
• Accuracy temp.: ±1 °C (calibration range ±9 °C)
• Ambient temperature: -20 °C … +40 °C
• Dimensions (WxHxD): 1000 x 270 x 92 mm
• EMC: EN61000-6-3:2001, EN61000-6-2:2005

Options:

• HM-DCF2: DCF-77 radio synchronisation antenna
• HM-GPS2: GPS reception antenna
• HMTTFR19PW-LED: Double sided version (case depth 130 mm)
• Versions with 150 / 250 mm digit height