ROTRONIC HF1 - Manual

ROTRONIC AG, CH-8303 Bassersdorf
Tel. +41 44 838 11 44, www.rotronic.com
ROTRONIC Messgeräte GmbH, D-76275 Ettlingen
Tel. +49 7243 383 250, www.rotronic.de
ROTRONIC SARL, 56, F - 77183 Croissy Beaubourg
Tél. +33 1 60 95 07 10, www.rotronic.fr
ROTRONIC Italia srl
, I- 20157 Milano
Tel. +39 2 39 00 71 90, www.rotronic.it
ROTRONIC Instruments (UK) Ltd, West Sussex RH10 9EE
Phone +44 1293 571000, www.rotronic.co.uk
ROTRONIC Instrument Corp, NY 11788, USA
Phone +1 631 427-3898, www.rotronic-usa.com
ROTRONIC Instruments Pte Ltd, Singapore 159836
Phone +65 6376 2107, www.rotronic.sg
ROTRONIC Shanghai Rep. Offi ce, Shanghai 200233, China
Phone +86 40 08162018, www.rotronic.cn
32
17
105
15
70
17
2
15
134
32
70
87
102
38
15
105
70
332
32
70
87
300 38
15
A
Duct & wall version
Congratulations on your purchase of the HygroFlex1-Series transmitter.
Please read these short instructions carefully before installing the device.
General description
The HygroFlex1-Series devices are universal transmitters for transmission of humidity and (or) tem-
perature measurements. Additional information can be found on the internet at:
www.rotronic.com
Dimensions / connections
Wall version
Duct version
AC5005 Mounting fl ange
for 15 mm probe
Mounting the wall version
Alignment
Mount the transmitter so that the probe points down.
Mounting variant 1
Hold and align the lower case to the wall. Drill two holes
through the case into the wall using a 4 mm drill or a
scratch awl. A drill mark in the wall is enough. Remove the
lower case and drill a hole in the wall with a 5 mm drill (at
least 3 cm deep)
Insert the plugs delivered with the device, add the washer
to the screws and mount the transmitter with the screws
(2 screws) to the wall.
The washers are used to seal the screw against the housing.
SHORT INSTRUCTION MANUAL
Programming
The basic settings of the devices are made in the factory according to your order. The transmitters
are adjusted in the factory and therefore do not need to be checked and readjusted during instal-
lation. The devices can be started immediately after installation.
Using HW4 or SW21 software and a standard mini USB cable, the following operations may be
performed.
• Rescaling of the analog outputs
• Single point adjustment
• General settings
Procedure
• Connect the device to the supply voltage
• Connect the device with your PC using the mini-USB cable
• Program the device using SW21 or HW4 software
• Disconnect the device from power for at least two seconds in order to validate the new setting
Sources of error
Measured values can be infl uenced by the following factors:
Temperature errors
Equilibration time too short, cold outside wall, heating elements, sunlight, etc.
Humidity errors
Steam, water spray, dripping water or condensation at the sensor, etc.
Soiling:
By dust in the air. The choice of probe fi lter depends on the amount of soiling at the measuring
point. The fi lter must be cleaned or replaced periodically.
Periodic calibration of the transmitter
The humidity - and temperature sensor including the corresponding electronics are very stable
and do not normally need to be changed or calibrated after factory calibration. The long term
stability of the ROTRONIC Hygromer humidity probes is typically better than 1 %RH per year. For
maximum accuracy we recommend calibration of the probe about every six to 12 months. More
frequent calibration can be necessary in applications where the sensor is exposed to pollutants.
The calibration can be performed by the user himself on site or in the laboratory / workshop. For
routine calibrations the probe should be checked at one or two points. The
electronics of the
transmitter do not normally require calibration in the fi eld. The electronics cannot be repaired in
the fi eld and should be returned to the manufacturer in the case of problems.
Technical data (operation)
Temperature
-20...50 °C
Humidity 0...100 %RH, non-condensing
Accuracy %RH (10…90 %RH) <3 % RH
Accuracy °C (0…50 °C) <0.3 °C
Temperature and humidity analogue output scaling
Humidity
0…100 %RH
Temperature Depends on the order code
Outputs Current or voltage signals, service interface
Mechanical installation
General recommendations
Relative humidity is extremely temperature-dependent. In order to measure correctly, the probe
and sensors must be as the same temperature as environment that is to be measured. The in-
stallation site can therefore have a signifi cant infl uence on the performance of the device. Follow
the guidelines below to ensure optimum performance:
a) Select a representative installation site:
Install the probe at a point where the humidity, temperature and pressure conditions are
representative for the environment that is to be measured.
b) Make sure there is suffi cient air movement around the probe:
An air fl ow of at least 1 meter/ second accelerates and facilitates adjustment of the probe to
changing temperatures.
c) Avoid:
1. Installing the probe too close to heating elements, cooling coils, cold or hot walls, direct
sunlight, etc.
2. Installing the probe too close to steam injectors, humidifi ers or direct precipitation.
3. Unstable pressure conditions with high air turbulence.
d) Insert the probe as far as possible into the environment that is to be measured.
e) Avoid accumulation of condensation at the contact wires of the sensor. Install the probe so that
the tip points down. If that is not possible, install it in horizontal position.
Mounting the duct version
To avoid measurement errors, at least 50 mm of the probe should be inserted into the environ-
ment that is to be measured. If necessary, use the mounting fl ange AC5005 to install the probe
and fasten the transmitter.
Tools needed for the installation
• Screwdriver (Philips tip)
• Screwdriver (Standard tip)
• Drill 4 mm or scratch awl (for the housing)
• Drill 5 mm (for the wall)
Terminal confi guration / Connection diagrams
HF132, HF133, HF134, HF135 ¾ wire
Terminal Description
Power Supply K1 / 1 + VCC
K1 / 2 – VCC
Analogue K2 / 1 + RH Analogue humidity output +
K2 / 2 – RH Analogue humidity output –
K3 / 1 + T Analogue temperature output +
K3 / 2 – T Analogue temperature output –
Digital K4 Service interface
K 2 K 1 K 3
Service
interface
K 4
+ V
CC
– V
CC
+ R
H
– RH + T – T
Electrical installation
Caution:
Wrong supply voltages and excessively high loading of the outputs can
damage the transmitter.
Probe length 102 mm (Type: HF1xx- Dxxx, HF1xx-Bxxx)
Probe length 300 mm (Type: HF1xx- Fxxx, HF1xx-Exxx)
Supply voltage / Technology
Type Supply voltage V+ Load Output
2- or 2x2 wire
HF120 10...28 VDC: 10 V + (0.02 x load) Max 500 Ω 4...20 mA
3/4 wire
HF132 15...40 VDC / 12... 28 VAC Max 500 Ω 4...20 mA
HF133 15...40 VDC / 12... 28 VAC Max 500 Ω 0...1 V
HF134 15...40 VDC / 12... 28 VAC Max 500 Ω 0...5 V
HF135 15...40 VDC / 12... 28 VAC Max 500 Ω 0...10 V
HF120 2- wire
Terminal Description
Analogue K2 / 1 + RH Analogue humidity output +
K2 / 2 – RH Analogue humidity output –
K3 / 1 + T Analogue temperature output +
K3 / 2 – T Analogue temperature outputg –
Digital K4 Service interface
K 2 K 3
Service
interface
K 4
+ R
H
– RH
+ T – T