The TSI Alnor HM685 Hydronic Manometer is used to balance hydronic heating and cooling systems, check pump performance and set balancing valves. It can measure and display differential, high side and low side pressures simultaneously, without the need to change hose connections or instrument valve settings. The easy setup and intuitive operation make this instrument very simple to use.

Applications for the HM685 Hydronic Manometer include:

• Test and balance heating and cooling systems
  
• Check pump performance
• Set balancing valves

Features

• Provides for inputs for two temperature probes
• Large backlit display for use in low light areas
• Operates on four alkaline or NiMH rechargeable batteries
• Reads inches H2O or Hg, ft H2O, psi, mm Hg, m H2O, kPa or bar
• Measures from 0 to 300 psi (0 to2068 kPa)
• Performs on-board universal flow and btu/hr calculations
• Displays volumetric flow when a Cv (Kv) factor is programmed
• Allows up to 100 Cv (Kv) factors to be entered
• NIST Certificate Included
• Calculates brake power, heat flow, Cv(Kv) factors, impeller sizing
• Stores up to 4,000 data points for recall or downloading
• Robust, splash-proof case
• Meter weight with batteries is 2.65 lbs (1.20 kg)

What's in the Box

• Hard carrying case
• Two 6.7 ft by 1/4 inch (2 m x 6 mm) hoses with shut-off valves
• Two B&G readout probes
• Two P/T gauge adapter probes
• Power cord
• 4" Temperature probe
• CompuDat USB downloading software
• USB interface cable
• NIST Certificate of Calibration