VC / VR0 pages

Galltec Mess- und Regeltechnik GmbHt MELA Sensortechnik GmbH

D-71145 Bondorf . Germany t
Tel. +49 (0)7457-9453-0 . Fax +49 (0)7457-3758 t
E-Mail: sensoren@galltec.de . Internet:www.galltec-mela.det

D-07987 Mohlsdorf-Teichwolframsdorf . Germany
Tel. +49(0)3661-62704-0 . Fax +49(0)3661-62704-20
E-mail:mela@melasensor.de . Internet: www.galltec-mela.de

Product info sheet no. C 4.2

Humidity / temperature sensors
Compact sensors in a high-grade steel housing
Description

Technical Data
Output 1: relative humidity
measuring range ............................................. 0...100% rh
accuracy (MR 5...95% rh at 10...40°C) ................ ±2% rh
influence of temp. <10°C, >40°C ........... 0.1%/K additional
Output 2: temperature
measuring element (ref. DIN EN 60751) .... Pt 100 class B
measuring range ............................................. -30...+70°C
accuracy
t
output:t 0...1V (-27...70°C) ....................... ±0.2 K
tt
0...10V (-29...70°C) ..................... ±0.2 K
tt
4...20mA .......................... -0.2 ... +0.6 K
tt
(depending on the air speed)
influence of temp. <10°C, >40°C ..... ±0.007 K/K additional
Other data
ambient temperature ....................................... -40...+80°C
degree of protection electronics ............................... IP 65
degree of protection of sensor head depends on used
filter
ZE13 .......................................................................... IP 65
ZE04 ........................................................................... IP20
operating voltage:
t
current output ................................... 12...30V DC
t
voltage output (0...10V) ................... 15...30V DC
t
voltage output (0...1V) ....................... 6...30V DC
load resistance (0...10V, 0...1V) ................... ≥10kΩ/≥2 kΩ
load (current output) ....................................... acc.diagram
power consumption
t
0...10V, 2 x 0...1V ...................................... <5 mA
t
0...1V ......................................................... <1 mA
minimum air speed (across the sensor) ttt
output:t 2 x 4...20mA ........................................... ≥1.5 m/s
t
t 4...20 mA, 2 x 0...10 V ................ ≥1 m/s
t
t 0...10V, 2 x 0...1V .................... ≥0.5 m/s
self-heating coefficient Pt100 (v=2 m/s in the air) .... 0.2 K/mW
Directive about electromagnetic compatibility
2004/108/EG
t
DIN EN 61326-1 ................................ issue 07/13
t
DIN EN 61326-2-3 ............................ issue 07/13

MELA®-humidity/-temperature sensors in the VC and VR
series are rod-shaped, compact sensors. They can be used
in a wide range of applications and have been specially
developed for use in extreme conditions. They are available
with a 1.5 m connecting cable (VC series), without cable
(VK series) or with a robust aluminium connecting head and
terminal screws (VR series) for measuring relative humidity
and temperature in air and other non-aggressive gases.
The advantages of the series .../9 are its improved dynamics,
in particular at low air speeds and also its increased service
life, even under more challenging operating conditions (pollutant impact or permanent humidity > 95 %rh).
When air speeds are extremely high combined with a high
number of particles, using the series .../9 is not recommended.
Their design also makes them ideally suited for performing
equilibrium humidity measurements in bulk materials and in
brickwork (only series .../5).

Type versions
Measured
variable

F
rel. humidity
C
rel. humidity
and
temperature
passive

Analogue
output

4...20 mA

VK series
without
cable

VC series VR series
with 1,5m connecting
cable
head

FVK3/x

FVC3/x

FVR3/x

0...10 V

FVK2/x

FVC2/x

FVR2/x

0...1 V

FVK1/x

FVC1/x

FVR1/x

4...20 mA,
Pt100
0...10 V,
Pt100
0...1 V,
Pt100
2 x 4...20 mA

CVK3/x

CVC3/x

CVR3/x

CVK2/x

CVC2/x

CVR2/x

CVK1/x

CVC1/x

CVR1/x

KVK3/x

KVC 3/x

KVR3/x

KVK2/x

KVC 2/x

KVR2/x

KVK1/x

KVC 1/x

KVR1/x

90 g

150 g

130 g

K
rel. humidity
2 x 0...10 V
and
temperature
2 x 0...1 V
active
approx. weight

Special versions available on request
- x=5: sintered high-grade steel filter ZE13
- x=9: integrated element filter of PTFE and
t
high-grade steel filter ZE04
- x=9-ME: glass Pt100 1/3-DIN cl.B and 5 m
tt connecting cable for VC series

This information is based on current knowledge and is intended to provide details of our products and their possible applications. It does not, therefore, act as a guarantee of specific
properties of the products described or of their suitability for a particular application. It is our experience that the equipment may be used across a broad spectrum of applications under
the most varied conditions and loads. We cannot appraise every individual case. Purchasers and/or users are responsible for checking the equipment for suitability for any particular
application. Any existing industrial rights of protection must be observed. The perfect quality of our products is guaranteed under our General Conditions of Sale. Issue : December
2014 C42_E.