The EDRA 6 is an electronic instrument which provides direct readout of air velocity.
The EDRA 6 is an electronic instrument which provides direct readout of air velocity. Models are available in analog form, equipped with a high quality taut-band moving coil meter. A 4" or a 1.4" diameter rotating vane measuring head is supplied with a handle and extension rods for use where access is limited. The instrument is powered by disposable batteries that can also be operated from the main supply with a battery eliminator. The electronic output socket gives 0.1 mA forced current on each velocity range. This facility may be used for a variety of purposes such as recorder-drive remote display via a duplicate readout, alarm triggering or to initiate alarm control functions. The EDRA 6 is provided with a recorder output which can be used to provide a recorder trace over a period of time by using the optional output converter as an interface to drive a datalogger or similar device.
Standard Accessories
Carrying case
Screw in handle for head
Set of 5 extension rods for measuring head (5 x 169mm long)
Plug for recorder output socket
Adjustable shoulder/neck strap
SPECIFICATIONS
Parameter
m/sec
ft/min
Measuring ranges
0.25 to 1 m/sec
50 to 200 ft/min
1 to 5 m/sec
200 to 1000 ft/min
5 to 25 m/sec
1000 to 5000 ft/min
Accuracy at 20°C and 1013 mbar Calibrated to better than ± 1%FSD (4" head) Calibrated to better than ±2% FSD (1.4" head)
Operating environment (indicator unit)
Barometric pressure
500 mbar to 2 bar
Temperature
-10°C to +50°C
Operating environment (measuring head)
Barometric pressure
500 mbar to 2 bar
Temperature
-10°C to +70°C (short periods to -30°C)
Power supply
4 x 1.5 volt cells R20 or equivalent
External power supply
Battery eliminator 5V to 13VDC, 20mA
Readout
Taut band moving coil meter 1mA FSD
Scale lengths 98mm, 83mm, 68mm
Recorder output
0 to 1mA on each range
Load 5kΩ max
CAT NO.
MODEL
DEscRIPTION
AVAIL
PRICE
AF12111
J71930401 W/4" HEAD
ELECTRONIC VANE MDL: EDRA 6A ANEMOMETER W/4" HD {J71930401}
Yes
3,013,200
AF12113
JA71552803
OPTIONAL 1.4" DIAMETER HEAD ASSEMBLY ONLY FOR EDRA 6 JA71552803 FOR Electronic Direct Reading Anemometer
Yes
853,200
AF12114
JA71288202
OPTIONAL 4" DIAMETER HEAD ASSEMBLY ONLY FOR EDRA 6 JA71288202 FOR Electronic Direct Reading Anemometer
Yes
831,600
AF12115
OC20
OPTIONAL OUTPUT CONVERTER MODEL OC20 (J71845101) FOR Electronic Direct Reading Anemometer
Yes
645,840
AF12116
75' EXTENSION CORD
OPTIONAL 75 FT EXTENSION CORD TO EXTENDFOR EDRA 6 FOR Electronic Direct Reading Anemometer
Yes
280,800
AF12117
JA71694302
OPTIONAL BATTERY ELIMINATOR CAN RUN OFF MAIN JA71694302 FOR Electronic Direct Reading Anemometer
Yes
52,056
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