The TSI HM685 Hydronic Manometer aids in balancing systems, checking pump performance, and setting balancing valves. It measures and displays differential, high-side, and low-side pressures simultaneously. It includes various measurement units like psi, kPa, H2O, etc.
The manometer measures differential pressures up to ±300 psi and gauge pressures from -20 to 300 psi. It also supports two temperature probes for advanced calculations, for example, universal flow and BTU/hr assessments. The HM685 can store up to 4,000 data points and has heat flow, brake power, and impeller sizing calculation characteristics.
Key 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 in H2O, ft. H2O, psi, in.Hg, mmHg, mH2O, kPa or bar
Differential pressure range ±300 psi (±2068 kPa)
Gauge pressure range -20 to 300 psi (-138 to 2068 kPa)
Performs onboard universal flow and btu/hr calculations
Displays volumetric flow when a Cv (Kv) factor is programmed
Stores up to 4,000 data points for recall or downloading via USB interface
Robust, splash-proof case
Meter weight with batteries is 2.65 lbs (1.20 kg)
What's Included?
Instrument
Hard carrying case
Two 6.7 ft x 1/4 in. (2 m x 6 mm) hoses with shut-off valves
Two B&G readout probes
Two P/T gauge adapter probes
Power cord
Temperature probe
CompuDat USB downloading software
USB interface cable
Videos
TSI Hydronic Manometers - Introduction
TSI Hydronic Manometers – Introduction
TSI Hydronic Manometers - Zeroing Sensors and Purging Air
TSI Hydronic Manometers – Zeroing Sensors and Purging Air
TSI Hydronic Manometers - Taking Measurements
TSI Hydronic Manometers – Taking Measurements
£3,005.00
£3,606.00 inc vat
Free Delivery*
Important Notice This item is made-to-order exclusively for you once your order is placed. As a result, it is not eligible for cancellation or return under our standard policy. Your statutory rights remain unaffected.
-20 to 300 psi (-138 to 2,068 kPa) (-40 to 610 in. Hg)
Resolution (Best)
0.001 psi (0.01 kPa) (0.01 in. Hg)
Accuracy*
±1% of reading plus .072 psi (0.5 kPa) (0.15 in. Hg)
Units
psi, in. H2O, ft H2O, kPa, mm Hg, in. Hg, m H2O, bar
Pressure Connection
¼” 37° flare fitting, Male
Temperature
Operating (electronics)
40 to 113°F (5 to 45°C)
Storage
-4 to 140°F (-20 to 60°C)
Liquid Media
32 to 180°F (0 to 82°C)
Probe (immersion)
-40 to 250°F (-40 to 121°C)
Resolution
0.1°F (0.1°C)
Accuracy
±0.5% of reading +1.2°F (0.7°C)
Units
°F, °C
Flow
Range**
-22,712 to 22,271 m3/h, -99,999 to 99,999 USGPM (-6,309 to 6,309 l/s)
Resolution (Best)
0.0001 USGPM (0.00001 l/s)
Accuracy
Per pressure accuracy + valve deviation
Units
USGPM, UKGPM, m3/h, l/s, l/m
Time Constant
User selectable (1, 5, 10, 20, and 30 seconds)
Statistics
min, max, average, sum up to 4,000 readings
Data Storage
4,000 combined readings, 100 Test IDs
Logging Interval
User selectable (1 to 3,600 seconds)
External Meter Dimensions
11.1 in. x 4.7 in. x 3.5 in. (28.2 cm x 11.9 cm x 8.8 cm)
Meter Weight with Batteries
2.65 lbs (1.20 kg)
Power Requirements
Four AA-size cells, or AC adapter
* Accuracy statement applies from -15 to 250 psi (-103 to 1,724 kPa) ** The flow reading is a calculated value determined from the measured Differential pressure, user-entered valve flow coefficient (Kv or Cv), and fluid-specific gravity