|
RELATIVE
HUMIDITY TRANSMITTERS
|
| |
HD2007T… Relative humidity transmitter. Measuring range 5...98%R.H. 4mA
correspond to 0%R.H., 20mA correspond to 100%R.H. Temperature drift
correction of R.H. sensor. Sensor working temperature: -40°C +150°C.
Power supply 7…30Vdc.
HD2008T…Dual digital three wire temperature and relative humidity
transmitter. Configurable measuring range: temperature between -50°C and
+200°C, standard configuration 0…100°C, relative humidity 5...98%R.H.
4mA correspond to -50°C and 0%R.H., 20mA correspond to +200°C and
100%R.H. Temperature drift correction of R.H. sensor. Power supply
7…30Vdc.
|
Relative humidity transmitter
|
| Our
Price: |
Contact us for
pricing |
| Phone:
|
253-927-6186
866-318-6186 |
| Fax:
|
253-927-6189 |
| email:
|
sales@hotektech.com |
|
|
|
|
|
HD 2007T... and HD 2008T... are
microprocessor configurable humidity and
humidity-temperature 4÷20 mA transmitters.
The temperature range is
configurable.
They convert humidity and temperature values
into two linear
current signals (2 wires) in the
field 4÷20 mA.
In the
humidity-temperature combined version,
the two circuits and the related
outputs are
completely independent one from the other. The linearization based on digital technique
grants best accuracy and
stability. Programming is carried out very easily by
pressing a button.
|
No operation
by means of jumpers, potentiometers, etc. is requested.
The humidity input can be recalibrated using two saturated solutions: the
first one at 75%, the second one at 33%; the 0% R.H...100% R.H. relative
humidity range is fixed and 4 mA correspond to 0% R.H., while 20 mA to
100% R.H. In HD 2008 model, the operator can configure 4÷20 mA (or 20÷4
mA) temperature output in any range going from -50°C up to +200°C with
25°C minimum amplitude.
A LED indicates the alarm states (temperature exceeding set-point, sensor
failure or short-circuit) and helps the operator when programming.
Important remark: the relative humidity sensor may work in a -30...+140°C
temperature range.
Beyond this range data are not correct and the sensor may be damaged.
|
Relative humidity transmitter ORDER CODES
HD2007TO/1: relative humidity 2-wire passive transmitter, 4÷20 mA
output.
Duct horizontal fixed probe L=130 mm.
HD2007TV: relative humidity 2-wire passive transmitter, 4÷20 mA
output.
Wall-mounting vertical fixed probe.
HD2007TC/1: relative humidity 2-wire passive transmitter, 4÷20 mA
output.
Probe L=130 mm connected directly to the instrument by means of a 1.5 m long
wire.
HD2007TC/2-5: relative humidity 2-wire passive transmitter, 4÷20 mA
output.
Probe L=330 mm connected directly to the instrument by means of a 5 m long
wire.
HD2007TC/2-10: relative humidity 2-wire passive transmitter, 4÷20 mA
output.
Probe L=330 mm connected directly to the instrument by means of a 10 m long
wire.
HD2008TO/1: relative humidity and temperature duct configurable
2-wire passive combined transmitter,
4÷20 mA double output. Duct fixed horizontal probe L=130 mm.
HD2008TV: relative humidity and temperature duct configurable 2-wire
passive combined transmitter,
4÷20 mA double output. Wall-mounting fixed vertical probe.
HD2008TC/1: relative humidity and temperature duct configurable
2-wire passive combined
transmitter, 4÷20 mA double output.
Probe L=130 mm connected directly to the instrument by means of a 1.5 m long
wire.
HD2008TC/2-5: relative humidity and temperature duct configurable
2-wire passive combined
transmitter, 4÷20 mA double output.
Probe L=330 mm connected directly to the instrument by means of a 5 m long
wire.
HD2008TC/2-10: relative humidity and temperature duct configurable
2-wire passive combined
transmitter, 4÷20 mA double output.
Probe L=330 mm connected directly to the instrument by means of a 10 m long
wire.
|
|
|
