Part Number:
AH+BTU |
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• All-in-One Portable Thermal Energy Measurement using non-intrusive (clamp-on) flow and temperature sensors with an integral energy meter
• Advanced Transit-time Technology with +/- 0.5% Accuracy and certified Class A Clamp-on Temperature Sensors
• Dual Channel Meter measures flow in all metal, composite & plastic pipes 0.25" - 118" diameters with or without liners
• Dual DSP Microprocessor with digital signal noise rejection
• Portable enclosure with graphical display and large data logging capabilities
• Easy to install clamp-on sensors - usually reading energy and flow within 30 minutes time
The ECHO Arrow Hunter Plus range of non-invasive flowmeters utilize transit-time ultrasonic technology for the accurate flow measurement of clean or dirty liquids and liquefied gases in full pipes. The AH+BTU is a single source Portable Thermal Energy Meter with Class A certified insertion or clamp-on temperature sensors and precise flow for a complete Energy Measurement Solution. This meter will monitor off-peak, extremely low flows down to 0.03 ft/s.
The AH+BTU is designed for portable applications where quick setup, accurate flow testing and reliable energy measurement are the primary requirements. The unit is simple, light-weight and cost-effective. It meets and exceeds the measurement performance of any competitors flowmeter on the market today.
The measurement of flow is based on the principle that sound waves are influenced by a flowing medium. Measurements are made by penetrating the pipe with ultrasound and measuring the frequency variations and phase shifts of the signals received. This measuring technique has no effect on the flowing medium. There is no pressure loss in the pipe and no wear on components of the measuring device.
The ultrasonic and temperature sensors are clamped onto the outside of the pipe, thus eliminating the need to dismantle the pipe work and interrupt the process. The AH+BTU can be applied to any type of metal or plastic pipe with or without a liner carrying clean or dirty liquids. We have several transducers to chose from depending on pipe size, process temperature and required hazardous approvals.
ECHO Process Instrumentation offers a 60 day Performance Guarantee!
Advantages
• Certified and Highly Accurate Portable Energy Flowmeter
• Measurement is independent of fluid conductivity
• No pressure loss, no possibility of leakage
• Easily retrofits failed mag meters in older plants
• No cutting of pipes necessary, no interruption of process, no plant shut down
• No additional fittings for maintenance required
• Hygienic measurement, no risk of contamination, suitable for ultra clean liquids
• No contact with medium, no risk of corrosion when used with aggressive media
• Cost advantages when used with large diameter pipes, high pressure systems, etc.
Technical Specs:
Arrow Hunter PLUS – Portable BTU Energy Meter
General
Measuring
principle
:
Ultrasonic
Transit-time
Flow
velocity
range
:
0.03 … 82 ft/s (0.01
... 25 m/s)
Resolution
:
0.00082 ft/s (0.25
mm/s)
Repeatability :
0.15
% of measured value ±0.015
m/s
Accuracy
:
Volume
flow :
±
0.5%
factory calibrated (process conditions can reduce accuracy),
±
0.5%
of measured value with process calibration
Flow
velocity :
±
0.5
% of measured value
Turn
down
ratio :
1/100
Max
particulates :
<
10 % of volume
Flow
transmitter
Enclosure : Portable
Protection
rating :
NEMA 12 (IP
65 according EN60529)
Operating temp. :
14 …140
°F
(-10
... 60 °C)
Housing material : Extruded aluminum, lids are zinc alloy
Flow channels : 2
Power
supply :
Internal rechargeable batteries, 8 x NiMH AA 2850 mAh or 9 VDC external power supply
Display :
LCD
graphic display, 128 x 64, backlight
Dimensions : 10.5
H x 6.6 W x 1.5 D inch (266 H x 168 W x 37 D mm)
Weight :
Approx. 4.4 lbs (2 kg)
Power consumption:
< 1 W in measurement mode
Signal damping :
0
... 99 s
Measurement rate
:
10
... 1000 s-1
Operating
languages:
English,
German, French, Spanish
Response
time :
1
s, faster rates upon request
Quantity and units of measurement
Volumetric
flow
rate
:
m3/h,
m3/min, m3/s, l/h, l/min, l/s, USgal/h, USgal/min, USgal/s, USMGD,
bbl/d, bbl/h, bbl/min, bbl/s
Flow
velocity :
m/s,
ft/s, inch/s
Mass
flow
rate :
g/s,
t/h, kg/h, kg/min
Volume/
Mass :
m³,
l,
US gal, bbl /
g,
kg, t
Heat flow : W, kW, MW
Heat quantity : J, kJ, MJ, BTU, MBTU, MMBTU
Internal data logger
Storage
capacity : > 100,000 samples (512
kByte)
Logging
data :
All
measured and totalized values
Communication
Serial
interface :
RS
232, (optional RS 485)
Data :
Instantaneous
measured value, parameter set and configuration, logged data
Software AH+ PC Software
Functionality :
Downloading
of measured values/parameter sets, graphical presentation, list
format, export to third party software, on-line transfer of measured
data
Operating
systems
:
Windows
2000, NT, XP, Vista, 07
Process inputs (Galvanically Isolated)
Temperature : PT100, four-wired circuit, measuring range –50 … 400˚C, resolution 0.1K, accuracy +/- 0.2 K
Process outputs (Galvanically Isolated)
Current : 0/4 … 20mA, active, 500Ω, 16 bit, U = 30V, accuracy 0.1%
Digital Pulse : (Open Collector) Totalizer, 0.001 … 1000/unit, width 30 … 999ms, U=24V, Imax = 4 mA
Relay : Alarm, fault (programmable), Form C (SPDT-CO), U=48V, Imax = 250mA
Serial : RS232 only
Clamp-on Sensors
Type XTT+SM-P
Pipe Diameter
range:
0.25 … 9.8 inch (10
... 250 mm)
Dimensions
:
1.7 x 0.7 x 0.8 inch (43x18x22mm)
Material
:
Stainless Steel
Temperature
range
:
Type
XTT+SM-P:
-22 ... 266 °F (-30
...
130 °C)
Protection rating : NEMA 6P (IP 68) submersible
Hazardous
rating : General Purpose
Type XTT+LG-P
Pipe Diameter
range:
1.96 … 118 inch (50
... 3000 mm)
Dimensions
:
2.3 x 1.2 x 1.3inch (60x30x34
mm)
Material
:
Stainless Steel
Temperature range : Type XTT+LG-P: -22 ... 266 °F (-30 ... 130 °C)
Protection
rating : NEMA 6P (IP 68) submersible
Hazardous rating : General Purpose
