HM685 Hydronic Manometer

Get a Price/Quote

HM685 Hydronic Manometer Specification

Humidity %
10% to 90% RH (Non-Condensing)

Connectivity Type
None (Standalone Device)

Capacity
Dual Channel Input

Temperature Range
0C to 50C

Flow Rate
Displayed (via Differential Pressure Calculations)

Sensor Type
Differential Pressure Sensor

Measurement Range
0 to 60.00 kPa

Resolution
0.01 kPa

Pressure Range
0 to 60.00 kPa

Equipment Type
Hydronic Manometer

Material
ABS Plastic Housing

Power Supply
9V Alkaline Battery

Power Consumption
Low Power Consumption

Accuracy
1% of Full Scale

Display Type
Digital LCD Display

Range
60.00 kPa

Auto Shut-off
Yes, extends battery life

Operating Modes
Single and differential measurement

Protective Case
Included for protection and portability

Overpressure Protection
Up to 75 PSI

Compliance
CE Certified

Backlight
Yes, for low-light operation

Units of Measurement
PSI, kPa, inH2O, mmH2O

Zeroing Function
Available for precise measurements

Operating Altitude
Up to 2,000 meters

About HM685 Hydronic Manometer

Product Details: The easy setup and intuitive operation make this instrument very simple to use.

Kit Includes

Instrument
Hard carrying case
(2) 6.7 ft x 1/4-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

Features and benefits

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 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)

Precision and Versatility in Pressure Measurement

With dual-channel inputs, the HM685 Hydronic Manometer accommodates both single and differential measurements for complex hydronic system evaluations. Its zeroing function supports accurate calibration, while the digital LCD display provides clear readings. Backlit functionality ensures visibility in dim settings, and the protective case keeps the instrument safe and portable.

Robust Design for Demanding Environments

Constructed from durable ABS plastic, the HM685 is built to withstand rigorous on-site usage. Overpressure protection up to 75 PSI and CE certification guarantee reliability and safety. Its operation thrives in temperatures from 0C to 50C and relative humidity up to 90% (non-condensing), making it suitable for varied Indian climates and altitudes up to 2,000 meters.

FAQs of HM685 Hydronic Manometer:

Q: How do I operate the HM685 Hydronic Manometer for differential pressure measurement?

A: To measure differential pressure, connect the pressure hoses to the dual-channel inputs, select the differential mode, and zero the device using the zeroing function. The digital LCD will display real-time differential values once the system is activated.

Q: What units of measurement are available on the HM685 and how do I switch between them?

A: The HM685 supports PSI, kPa, inH2O, and mmH2O. Switching units is done via the devices menu by pressing the designated unit selection button until the desired unit appears on the display.

Q: When is the backlight feature most beneficial during operation?

A: The backlight is especially useful in low-light environments or poorly lit mechanical rooms, ensuring the display remains readable regardless of ambient conditions.

Q: Where can the HM685 be used in terms of environmental conditions?

A: The HM685 is designed for use in various field environments across India, operating reliably at altitudes up to 2,000 meters, temperatures from 0C to 50C, and humidity levels between 10% and 90% RH (non-condensing).

Q: What protective measures does the HM685 offer against high pressure?

A: The device provides overpressure protection up to 75 PSI, preventing sensor damage during accidental exposure to excessive pressure.

Q: How does the auto shut-off function benefit me during extended usage?

A: The auto shut-off feature reduces unnecessary battery drain by powering down the device after periods of inactivity, thereby extending battery life and minimizing maintenance costs.

Q: What are the main benefits of using the HM685 for hydronic system diagnostics?

A: The HM685 offers precise, reliable, dual-mode (single and differential) measurements, intuitive operation, portability with its protective case, and robust construction, making it ideal for HVAC experts, service engineers, and suppliers in the hydronic sector.

Tell us about your requirement