TSI Alnor HM680, HM670 Data sheet
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
Features and Benefits (HM680 only)
• Calculates flow using valve manufacturers’ Cv (Kv) factors
• Calculates heat flow, impeller diameter, and brake power
Applications
• Test and balance heating and cooling systems
• Check pump performance
HM670 kit includes hard carrying case, (2) 6.7 ft x ¼-in.
(2 m x 6 mm) hoses with shut-off valves, (2) B&G readout
probes, (2) P/T gauge adapter probes, and power cord.
HM680 kit includes all items in HM670 kit, plus a temperature
probe, CompuDat USB downloading software, and USB
interface cable.
Rugged. Reliable. Professional.
Hydronic Manometers
Model HM680
Hydronic Manometers
Models HM670, HM680
The HM670 and HM680 Hydronic Manometers are used to
balance hydronic heating and cooling systems and to check
pump performance. 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 CompuDatTMUSB software and USB interface cable.
Specifications
Models HM670 and HM680
Pressure
Differential Pressure
0 to 300 psi (0 to 2068 kPa)
Gauge Pressure 0 to 300 psi (0 to 2068 kPa)
Resolution (best) 0.001 psi (0.01 kPa)
Accuracy
1
±1% of reading or .072 psi (0.5 kPa),
whichever is greater
Units in. H
2
O, ft H2O, in. Hg, kPa, mm Hg, m H2O, psi, bar
Connection ¼ in. (6.25 mm) 37° Flare Fitting, Male
Temperature
Operating (electronics)
40 to 100°F (4 to 38°C)
Storage 0 to 140°F (-18 to 60°C)
Media 32 to 180°F (0 to 82°C)
Probe -40 to 250°F (-40 to 121 °C)
Resolution 0.1°F (0.1°C)
Accuracy ±0.5°F (0.3°C) from 32 to 160°F (0 to 71°C);
max ± 2.0°F (1.2°C) from -40 to 32°F (-40 to 0°C)
and from 160 to 250°F (71 to 121°C)
Units °F, °C
Flow
Range
2
0 to 2271 m3/h, 0 to 9,999 USGPM
(0 to 631 l/s)
Resolution (best) 0.0001 USGPM (0.00001 l/s)
Accuracy per pressure accuracy + valve deviation
Units USGPM, UKGPM, m
3
/h, l/s, l/m
Statistics
min, max, average, sum up to 1000 readings (HM680 only)
Data Storage
1000 combined readings, 100 Test IDs (HM680 only)
Logging Interval (HM680 only)
User selectable, 5 to 3600 seconds
Averaging Interval (HM680 only)
User selectable, 1 to 30 seconds
External Meter Dimensions
11.1 in. × 4.7 in. × 3.5 in. (28.2 cm × 11.9 cm × 8.8 cm)
Meter Weight with Batteries
2.65 lbs (1.20 kg)
Power Requirements
Four AA-size cells, or AC adapter
Hydronic Manometers
A
lnor Products, TSI Incorporated
- 500 Cardigan Road Shoreview, MN 55126-3996 USA
USA Tel: +1 800
424 7427
E-mail: customerservice@alnor.com
Contact your local Alnor Distributor or visit our website www.alnor.com for more detailed specifications.
P/N 2980563 Rev B Copyright © 2008 by TSI Incorporated Printed in U.S.A.
Models HM670 and HM680
1
Accuracy statement applies from 0 to 250 psi (0 to 1724 kPa)
2
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
Specifications subject to change without notice.
HM670 HM680
Differential, high side, and low side
pressures displayed simultaneously
••
Range 0 to 300 psi (0 to 2068 kPa)
••
Reads in in. H2O, ft H2O, psi, in. Hg,
m H2O, kPa, mm Hg, bar
••
Performs on-board universal flow and
btu/hr calculations
•
Downloading software and USB cable
•
Temperature probe
optional
•
Hard carrying case
••
Free Certificate of Calibration
••
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