Multi Channel Heat Flux Meter HFM-215N

Multi Channel Heat Flux Meter HFM-215N
Multi Channel Heat Flux Meter HFM-215N

The HFM-215N Heat Flux Meter is a compact and rugged instrument which masters any heat flux measuring task: It is suitable for all type of heat flux sensors, capable of performing continuous heat flux measurements collecting data of up to 16 sensors in parallel and offers advanced data handling features.

Measurement at up to 16 locations in parallel:
The HFM-215N can simultaneously collect data from up to 16 A type or 8 A/B type heat flux sensors.

Fully fledged data handling - easy communication
Measured data can be analysed directly on the big colour display of the instrument or be transmitted to any type of communication device. A built-in web server, FTP server and an e-mail transmitting system provide an easy communication regardless of where the HFM-215N is located.

Well equipped for continuous measurements
The internal memory of the HFM-215N can store the data collected by 8 sensors performing one measurement per second each during 55 hours. For automatic continuous measurements over longer periods of time, the instrument can easily be equipped with an SD card which enables it to continuously collect data during years.

Extensive application range
A wide range of different sensors covers almost every application. A rugged housing protected by rubber cushions guarantee safe operation even under difficult environmental conditions.

Details

A versatile tool

Thanks to a wide range of different heat flux sensors, the HFM-215 Heat Flux Meter can be used for numerous applications – ranging from heat flux measurements from living bodies, to heat flux measurements through soil in agriculture and through floors, roofs and walls in architecture. Special high heat flux sensors enable the HFM-215 to perform even continuous measurements on hot surfaces with a temperature of up 500 °C to ensure a safe operation of electric furnaces.

Furthermore, the HFM-215 can simultaneously perform heat flux and temperature measurements with up to 16 sensors and represent the data graphically on its 3.5 inch color LCD screen.

Measurements of low heat fluxes e.g. in medicine
Measurements of low heat fluxes e.g. in medicine
Heat flux measurements in agriculture
Heat flux measurements through walls, floors and roofs
Heat flux measurements in plants to detect heat losses
Measurements of high heat fluxes e.g. on electric furnaces
Simultaneous heat flux and temperature measurements with up to 16 sensors

Ideal for long term measurements

The HFM-215 is particularly suited for heat flux measurements and data logging over long periods of time: The instrument can be operated with an AC adapter and the data can be stored in the internal memory of the instrument and on an external storage medium (CF card Type II, SD card or USB memory ). Like this there is enough memory capacity to log data from one or several heat flux sensors during several years.

 

Measured data can be stored on an SD card
Measured data can be stored on an SD card
Measured data can be stored on a Compact Flash card

Advanced data transmission and control

The HFM-215 is equipped with several interfaces which provide a seamless integration of the instrument into existing networks (Ethernet), serial data transmission over longer distances in electrically noisy environments (RS-485) or a simple connection to a personal computer (RS-232C and USB). The instrument features advanced communication skills: It is equipped with a web server, an e-mail transmitting system and FTP server and client functions.

 

The HFM-215 Heat Flux Meter is equipped with several interfaces
The HFM-215 Heat Flux Meter is equipped with several interfaces
The HFM-215 Heat Flux Meter is equipped with several interfaces
Ethernet provides a seamless integration into existing networks
USB allows easy data acquisition and control of the instrument with a PC

Technical Specifications

Measuring parameters Heat flux and temperature  
Measuring units Temperature [°C], heat flux [W/m²],
heat flux [kcal/m²h]
 
Sampling rate 200/500 ms, 1/2/5/20/30 s, 1/2/5/10/20/30 min, 1h  
Display cycle Approx. 1 s  
Display 3.5 inch color TFT LCD  
Display contents
  1. Waveform, bar chart, heat flow and temperature
  2. Numeric values of heat flow and temperature
  3. Numeric values of heat flow and temperature plus waveform
 
Display range Heat flux [W/m²]
Temperature [°C]
0 … ±99'999
-40 … 750
Sensor constants A and B sensor constants can be input by key entry  
Number of sensors

Sensor constant A/B type,
sensor constant A type that requires temperature data

Sensor constant A type that requires no temperature data


up to 8

up to 16

Internal memory 16 MB
Capacity to store measuring data of 8 sensors
constant A/B type at a sampling rate of one second during 55 hours 
 
External memory

Ethernet (10BASE-T/100BASE-TX), Web server,
FTP server, FTP client, e-mail transmitting functions
Compliant with USB Rev. 1.1, RS-232C, RS-485 

 
Power supply

Rechargeable battery: Lasts for approx. 7 hours
of continuous use if fully charged (ambient temperature 25°C,
measurement cycle ≥ 5 minutes,
back-lighting auto off ≤ 5 minutes, no data communication)
Time required to charge the battery: 8 hours

Comes with AC adapter (AC 100 or 240 V) as standard

 
Ambient conditions

Temperature when using with AC adapter
Temperature when using with battery

Humidity

0 … 50 °C
0 … 40 °C

5 … 85 % RH

Dimensions (approx.) 155 (W) x 155 (H) x 55 (D) mm
6.1 (W) x 6.1 (H) x 2.17 (D) in
 
Weight (approx.) 800 g (1.76 lbs)
(without battery and rubber cushions)
 
Accessories AC adapter
Mini USB cable
Standard software for PC
Lithium-ion battery
Operation manual

1pc
1pc
1pc
1pc
1pc

Accessories

Heat Flux Sensors

Specifications of Heat Flux Sensors

Technical specifications of heat flux sensors

  • To display a drawing and the technical specifications of a heat flux sensor, please click on the corresponding sensor name.
Sensor NameDescriptionMeasuring Range 
 KR2 General-purpose Low Heat Flux Sensor
This sensor is included the standard delivery
of the HFM-215
12 … 3'500 W/m²
-40 … 150°C
kr2-b_preview.jpg
 KR6 General-purpose Low Heat Flux Sensor 12 … 3'500 W/m²
-40 … 150°C 
 kr6-b_preview.jpg
 KM1 Low Heat Flux Sensor 12 … 3'500 W/m²
-40 … 150°C
 km-1_preview.jpg
 K500B High Heat Flux Sensor (Surface Type) 350 … 17'000 W/m²
70 … 500°C
 k500b_preview.jpg
 K500B-20 High Heat Flux Sensor (Surface Type) 350 … 17'000 W/m²
70 … 500°C 
k500b-20_preview.jpg
 K750 High Heat Flux Sensor (Embedding Type)

580 … 58'000 W/m²
200 … 750°C 

k750_preview.jpg
 KW  High Heat Flux Sensor (Surface Type)
(available on special request only) 
1'200 … 120'000 W/m²
0 … 90°C
kw_preview.jpg

Adhesive sheet for Low Heat Flux Sensors

Adhesive Sheets for Heat Flux Sensors

Pressure sensitive adhesive sheet to paste Low Heat Flux Sensors to a surface.

The adhesive sheet is available in two versions:

  • HA2-H for high temperatures (> 70°C)
  • HA2-L for low temperatures (< 70°C)

 

 

 

 

 

 

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