.:Hydronic Manometers:.
Models HM670 and HM680

Both models can measure and display differential, high side, and low side pressures simultaneously without having to change hose connections or instrument valve settings. Both models feature a backlit display and operate on four alkaline or NiMH rechargeable batteries.

The HM680 can also display volumetric flow when a Cv (Kv) factor is programmed. Up to 100 Cv (Kv) factors can be entered. In addition, the HM680 can calculate brake power, heat flow, Cv (Kv) factors and impeller sizing. Up to 1,000 data points can be stored to memory for later recall or downloaded to a PC using CompuDatTM USB software and USB interface cable.

Features And Benefits:

• Measure and display high side, low side, and differential pressure simultaneously from 0 to 300 psi (0 to 2068 kPa)
• Robust, splash-proof case
• Calculates flow using valve manufacturers’ Cv (Kv) factors (HM680 Only)
• Calculates heat flow, impeller diameter, and brake power (HM680)

• Test and balance heating and cooling systems
• Check pump performance

HM680 kit includes all items in HM670 kit, plus a temperature probe, CompuDat USB downloading software, and USB interface cable.