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TSI HM685 Hydronic Manometer Water Air Flow Meter

£3,570.00
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TSI HM685 Hydronic Manometer Water Air Flow Meter

General Specifications
Pressure
Differential Range 0 to 300 psi (0 to 2,068 kPa)
Gauge Range 0 to 300 psi (0 to 2,068 kPa)
Resolution (best) 0.001 psi (0.01 kPa)
Accuracy ±1% of reading or .072 psi (0.5 kPa), whichever is greater
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 -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 (HM685)
Range 0 to 2,271 m3 /h, 0 to 9,999 USGPM (0 to 6,31 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
Statistics
min, max, average, sum up to 4,000 readings
Data Storage
4,000 combined readings, 100 Test IDs 
Logging Interval
User selectable (1, 5, 10, 20, and 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
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Description

TSI HM685 Hydronic Manometer Water Air Flow Meter

Hydronic Manometer HM685 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.


The TSI HM685 Is Supplied With:

  • Instrument
  • 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
  • Power cord
  • Temperature probe
  • CompuDat™ USB downloading software
  • USB interface cable


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 H 2 O, ft. H 2 O, psi, in. Hg, mm Hg, m H 2 O, kPa or bar
  • Differential pressure range ±300 psi (±2068 kPa)
  • Gauge pressure range -20 to 300 psi (-138 to 2068 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
  • Calculates brake power, heat flow, Cv (Kv) factors, and impeller sizing
  • 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)

isswww and TSI Airflow

TSI Inc. serves a global market by investigating, identifying and solving measurement problems. As an industry leader in the design and production of precision measurement instruments, TSI partners with research institutions and customers around the world to set the standard for measurements relating to aerosol science, air flow, chemical analysis, indoor air quality, fluid dynamics, biohazard detection, and even scrap metal sorting and plastics identification. With headquarters based in the U.S. and field offices throughout Europe and Asia, TSI has established a worldwide presence in the markets we serve. Every day, our dedicated employees turn research into reality.

ISSWWW have enjoyed a long and successful relationship with TSI Airflow, supplying a good number of their products every month to trade and industry sectors, where they continue to affirm themselves as a leading brand in their market.

Features & Specification

More Information
Key Features Backlit LCD Display, Probe Connection, Dual Input, Robust Design, Reads A Variety Of Settings, -20 to 300 psi
Product Stock Status Next Day Delivery (subject to availability)
Manufacturer TSI Airflow
Short Description

TSI HM685 Hydronic Manometer Water Air Flow Meter

General Specifications
Pressure
Differential Range 0 to 300 psi (0 to 2,068 kPa)
Gauge Range 0 to 300 psi (0 to 2,068 kPa)
Resolution (best) 0.001 psi (0.01 kPa)
Accuracy ±1% of reading or .072 psi (0.5 kPa), whichever is greater
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 -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 (HM685)
Range 0 to 2,271 m3 /h, 0 to 9,999 USGPM (0 to 6,31 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
Statistics
min, max, average, sum up to 4,000 readings
Data Storage
4,000 combined readings, 100 Test IDs 
Logging Interval
User selectable (1, 5, 10, 20, and 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

Delivery

Updated January 2024

Please note, our cut-off time is 2:00pm

Orders requiring calibration 

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.
Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Revised March 2021)

Service Price
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT FREE
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT £4.95
Next WORKING Day (excludes Saturdays, Sundays and public holidays)  – UK Mainland only - Zones A & B  - ANY order value - Order by 2:00pm £7.75
Saturday ANYTIME Delivery - Order by 2:00pm £9.95
 

 

 

 

 

Delivery Surcharges

Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

Export 

All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
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