Manual

ROTRONIC AG, CH-8303 Bassersdorf
Tel. [phone], www.rotronic.com
ROTRONIC Messgeräte GmbH, D-76275 Ettlingen
Tel. [phone], www.rotronic.de
ROTRONIC SARL, 56, F - 77183 Croissy Beaubourg
Tél. [phone], www.rotronic.fr
ROTRONIC Italia srl
, I- 20157 Milano
Tel. [phone], www.rotronic.it
ROTRONIC Instruments (UK) Ltd, West Sussex RH10 9EE
Phone [phone], www.rotronic.co.uk
ROTRONIC Instrument Corp, NY 11788, USA
Phone [phone], www.rotronic-usa.com
ROTRONIC South East Asia Pte Ltd, Singapore 339156
Phone [phone], www.rotronic.com.sg
ROTRONIC Shanghai Rep. Offi ce, Shanghai 200233, China
Phone [phone], www.rotronic.cn
12.0813.9005
SHORT INSTRUCTION MANUAL
Calibration Instructions HL-20
Articles needed for calibration and adjustment
• Calibration unit HL-20-CAL
• Service cable AC3006 (for adjustment via PC)
• Software HW4 (for adjustment via PC)
• Humidity standard
Article overview
Calibration unit
Art. no. HL-20-CAL
Contains: 1x calibration device
2x pads
1x calibration cup
2x screws
1x Allen key
1x retaining bracket
Calibration cups and pads
Art. no. HL-20-CAL-P-C
Contains: 10x calibration cups
20x pads
Pads
Art. no. HL-20-CAL-P
Contains: 20x pads (P)
Accessories
Service cable for connection of the HL-20 to a PC AC3006
HW4 software HW4-E-x
Humidity standard 5 %RH EA05-SCS
Humidity standard 10 %RH EA10-SCS
Humidity standard 11 %RH EA11-SCS
Humidity standard 20 %RH EA20-SCS
Humidity standard 35 %RH EA35-SCS
Humidity standard 50 %RH EA50-SCS
Humidity standard 60 %RH EA60-SCS
Humidity standard 65 %RH EA65-SCS
Humidity standard 75 %RH EA75-SCS
Humidity standard 80 %RH EA80-SCS
Humidity standard 95 %RH EA95-SCS
Calibration accuracy:
± 2 %RH (with 10, 35, 50, 65, 80 %RH calibration solution)
± 2.5 %RH (with 5, 95 %RH calibration solution)
0 %RH not recommended
Follow the instructions for the calibration solutions!
Calibration procedure
1) Unscrew the HL-20 humidity cage.
2) Screw the calibration device on to the HL-20.
3) Place calibration pads in the calibration cup. (Two pads per calibration process). Open the
calibration solution and pour into the calibration cup completely.
4) Insert the calibration cup into the calibration device completely.
5) Mounting of the retaining bracket / Connection to PC
Unscrew the battery cover and push the retaining bracket into the holes.
Connect the AC3006 connection cable to the device.
6) In a constant ambient temperature wait 2½ hours.
7) HL-20 calibration and adjustment procedure (general)
Connect the HL-20 logger to the PC with the AC3006 service cable. Launch HW4.
See the HW4 instruction manual E-M-HW4v3-Main_12 for further information on connecting
the logger to a PC.
The HL-20 adjustment procedure is carried out in two separate steps.
• Acquisition and saving of the calibration points
• Adjustment of the HL-20 on the basis of the saved calibration points
A
Caution!
Do not damage the sensors!
A
Caution!
Do not damage the sensors!
Acquisition and saving of humidity calibration points
In the device tree in HW4 select / HL-20 / “Probe Adjustment” / and then in the menu under
“Settings and Tools” select “%RH Reference”.
 Deactivate “Limit the adjustment range” for a standard adjustment.
In Adjust Humidity, enter the value of the humidity standard used at Reference Value and then
confi rm with Save Calibration Point.
As soon as “Save Calibration Point” is pressed, the values are applied in the table on the right side.
Repeat calibration with other humidity values.
Adjustment of the HL-20 based on the calibration points saved
To adjust the logger on the basis of the calibration data, you must press “Adjust” after entering
all desired calibration points.