E+E HUMOR20 Operating Manual

HUMOR 20 +

Automatic Calibration Module

HUMIDITY CALIBRATOR

BA_Humor20_e // v3.3 // technical data are subject to change // 302252

MANUAL

Hardware + Software

Table of contents

1. FOREWORD 3

2. SCOPE OF SUPPLY 4

2.1 HUMOR 20 4

2.2 Automatic calibration module (optional) 4

3. SAFETY INSTRUCTIONS 5

3.1 General 5

3.2 HUMOR 20 5

4. OPERATING PRINCIPLE 6

5. OPERATING COMPONENTS 7

5.1 HUMOR 20 7

5.2 Automatic calibration module (optional) 7

6. GENERAL USER INSTRUCTIONS 7

6.1 Setup 7

6.2 Starting up HUMOR 20 8

6.3 Starting up HUMOR 20 with automatic calibration module 9

6.4 Verifying the 100%RH Point 11

7. CALIBRATION AND ADJUSTMENT PROCEDURE 12

7.1 Cubical transmitters (room design) with HUMOR 20 12

7.2 Transmitter with sensor probe with HUMOR 20 12

7.3 Transmitter EE33 Model J with HUMOR 20 13

7.4 Analogue Output HUMOR 20 14

7.5 Calibration with the automatic calibration module 14

7.6 Power failure during the calibration procedure 14

7.7 Ending the calibration or adjustment procedure 14

8. HUMOR 20 SOFTWARE 15

8.1 Installation the software 15

8.2 Configuration mode control panel 16

8.3 Menu bar 16

8.3.1 Operation 16

8.3.2 Adjustment / Calibration 22

8.3.3 Pressure Compensation 23

8.4 Measurements 24

8.4.1 Start screen 24

8.4.2 "Test unit" configuration field 24

8.4.3 "Measurements" configuration field 26

8.5 Fixed RH Value (only available when using an automatic calibration module) 27

9. MAINTENANCE 27

9.1 Re-fill water (at error message - waterlevel low) 27

9.2 Drain water (at error message - waterlevel high or long idle periods) 27

9.3 Cleaning 27

10. WARNINGS / ERROR MESSAGES ON THE DISPLAY 28

10.1 Humidity - display flashes 28

10.2 Warning: OUT OF SPEC 28

10.3 Warning: WATERLEVEL HIGH 28

10.4 Warning: WATERLEVEL LOW 29

10.5 Error message: heat defect 29

10.6 Error message: pressure excess 29

10.7 Humidity - display is incorrect 29

10.8 Stabilisation time too long 29

10.9 Leakage in filter set 30

10.10 Electronic defect - replace electronics 30

10.11 Fuse defect - Replacing the fuse (Humor20 + Autokit) 30

11. TECHNICAL DATA 31

12. ACCESSORIES 32

12.1 Oil-free compressor 32

12.2 Covers for measuring chamber 32

12.3 Calibration certificate 32

12.4 Automatic calibration module 32

2

LIMITED LIABILITY

E+E Elektronik® shall not be held liable for any damage or consequential damage (for example, but
not restricted to, loss of earnings, interruption of business, loss of information and data or any other
financial losses) resulting from the setup, use or impossibility of use of an E+E Elektronik® software
product and any associated support services or non-performance of support services.

E+E Elektronik® Ges.m.b.H. is not responsible for the completeness of this publication and shall
not be liable for the products described herein in the event of improper handling.
This publication may contain technical inaccuracies or typographical errors. The information con­tained herein is revised regularly. These changes will be implemented in later editions. The products
described herein may be improved or changed at any time.

© Copyright E+E Elektronik GmbH // All rights reserved // Subject to change without notice

1. FOREWORD

E+E Elektronik® Ges.m.b.H. developed this device to accurately generate the relative
humidity (Uw).
As such, this professional tool represents the manufacturer's current status of knowledge with
regard to development, design and production. The manufacturer is confident that the humidity
calibrator HUMOR 20 meets all the requirements and expectations that you, the buyer, demand of
a new acquisition. If the device is handled properly and serviced regularly it should work reliably for
several years.

This manual forms part of the scope of supply and serves to ensure proper handling and optimal
performance of the device.
Therefore, make sure you read the manual before you take the device into operation. The manual
is also to be brought to the attention of any person involved in transport, setup, operation, mainte­nance or repair.

This manual must not be used for competitive purposes without our written consent and must not
be passed on to third parties. Copies for personal use are permitted.
All information, technical data and illustrations contained in this manual are based on the informati­on available at the time of publication.

E+E Elektronik® Ges.m.b.H. reserves the right to change the technical data or make other technical
modifications at any time and without prior notice without being committed to retrofitting models
produced before such a change was made.

General

This manual is part of the scope of supply and serves to ensure the optimum operation and perfor­mance of the device.
To ensure correct operation, this manual must be read before the device is taken into operation.

Explanation of symbols

This symbol indicates a safety instruction.

These safety instructions must always be followed. The manufacturer is not liable for any damage
resulting from non-compliance. In this case, the user is solely responsible for his actions.

This symbol indicates a note.

These notes should be observed to achieve optimal performance of the equipment.

3

2. SCOPE OF SUPPLY

2.1 HUMOR 20

1

2

3

4

5

6

1 Power supply cable IEC Europe (230V) + power supply
cable IEC Northamerica (110V)
2 Water drain pipe with connector
3 Funnel
4 Allen key (10mm /
5 Measuring beaker
6 Measuring and calibration software
7 Face pin wrench
8 Plexiglas cover for room transmitter testing

0.4”)

7

8

9

10

11

12

13

14

9 O-ring for room transmitter
10 Knurled nut
11 Cover for measuring chamber (ordering
code HA0202xx) (not inlcuded in the
scope of supply HUMOR 20)
12 Fixing bracket for filter set
(pre-mounted)
13 Works certificate acc. DIN EN 10204-3.1
14 Filter set with oil separator

2.2 Automatic calibration module (optional)

• Automatic calibration module

• Power supply cable IEC Europe (230V)

• Power supply cable IEC North America (110V)

• RS232 connection cable to HUMOR 20

• Compressed-air connecting hose to HUMOR 20

4

3. SAFETY INSTRUCTIONS

3.1 General

HUMOR 20 is designed based on state-of-the-art technology, which means it will operate reliably if
it is kept in good condition and operated and serviced correctly. This device may pose a risk if it is
operated improperly by untrained personnel.

Improper use can:

• Injure operating personnel and damage the device itself or other assets belonging to the user.

• Prevent the device from working efficiently and accurately.

Observe the following information to ensure operational safety:

• Only qualified or specially trained staff may operate or perform work on the humidity
calibrator.
Unauthorised changes or modifications are either not permitted or require the express
permission of the manufacturer.

• Read this manual carefully before taking the device into operation. The manual must
also be made available to any person involved in transport, setup, operation, mainte­nance or repair (particularly when loaning or selling the device to a third party).

• Only operate the device if it is in good condition. Any fault must be repaired by authori­sed personnel or by an E+E Elektronik sales partner before it is taken into operation
again.

3.2 HUMOR 20

• Check whether the supply voltage data on the nameplate matches the local supply
voltage. This also applies to the automatic calibration module.

• Only power the humidity calibrator via a grounded power outlet (safety precaution).
This also applies to the automatic calibration module.

• HUMOR20 and automatic calibration module should be placed in a way which allows
an as easy as possible disconnection from the power supply.

• Before opening the water intake, make sure that the humidity calibrator is no longer
under pressure (controller turned to the left as far as it will go; if HUMOR 20 already in
service, display shows RH > 90%).

• HUMOR 20 may only be operated with distilled (deionised) water.

• Before connecting the compressed air or nitrogen supply, make sure that the controller
is turned to the left as far as it will go.

• The device may only be operated with filtered compressed air with a contamination
level of <0.01mg/m³.

• The media supply may not exceed an absolute pressure of 10 bar (pressure gauge
and safety value recommended for use in the supply line).

• If a humidity calibrator is filled with water and ready for operation, it must not be
tilted by more than 20° during transportation. If this is not possible, HUMOR 20
must be drained completely, see section "9.2 Drain water".

• Once HUMOR 20 has been switched off, it must also be disconnected from the
compressed air (because of possible condensation in the lines as the heating is
turned off).

5

4. OPERATING PRINCIPLE

Dry air

Air or nitrogen under pressure p1 is
fed into chamber 1 and humidified.
The developing saturation vapour
pressure ews is a direct result of the
temperature of the chamber respec­tively the water. Next, the humidified
air is expanded to pressure p and

Pressure [mbar]

Dry air

fed into chamber 2. During expansi­on, the vapour pressure ews is
reduced in the same ratio as the
overall pressure of the air. Therefore,

Vapour pressure

Vapour pressure

the water vapour pressure in
chamber 2 is:

e = ews * p/p1

Thanks to the special design of HUMOR 20 with its high thermal conductivity, chamber 1 always
has the same temperature as chamber 2.

Consequently, if the temperature is the same, the saturation vapour pressure ews of chamber 1 is
identical to that of chamber 2. As a result of the expansion of the humidified air, chamber 2 contains
the water vapour partial pressure e.
From the definition for relative humidity follows for chamber 2:

rh = e/ews = ews * (p/p1) / ews = p/p1

Hence, the relative humidity in chamber 2 is a direct result of the ratio of the pressures in chambers
1 and 2.

Air
p

Pressure regulator

1

Reducing valve

In addition, the relative humidity
generated in HUMOR 20 is practi­cally independent of the ambient
temperature and only dependent

p , T

e

e

ws

p1 --> p

on the pressures p and p1. The
only precondition is that the tem­perature of chambers 1 and 2 and
the water
in chamber 1 is the same.

Measuring chamber

The relative humidity in chamber 2
can be varied by adjusting the inlet

Water T, p

1

Saturation chamber

pressure p1. During operation, the
pressures in chambers 1 and 2 are
measured and the actual relative
humidity is calculated with the

Schematic diagram of a two-pressure reactor

above equation and shown in the
display of the calibrator.

6

5. OPERATING COMPONENTS

5.1 HUMOR 20

Water intake

Measuring
chamber

Humidity controller

Carry handle

HUMOR 20 - Back Side

power cable
+ switch
+ fuse

Supply voltage + measuring
inputs for test units

Pressure supply
(compressed air / N2)

output signal test unit

Switch 2: for test unit 1-4 and

measuring chamber temperature

Bracket for filter set

serial interface

socket "analogue output HUMOR 20"

water out

(pre-mounted)

Display

Switch 1:

Filter set

5.2 Automatic calibration module (optional)

Compressed-air connecting hose

Pressure supply (compressed air / N2)

(*) Lights up when power is supplied
(**) - Flashes: Adjusted to setpoint

- Lights up: Setpoint reached

6. GENERAL USER INSTRUCTIONS

Green "power" LED (*)
Orange "auto" LED (**)

filter set

Bracket for filter set
(pre-mounted)

6.1 Setup

Operating range: 10...40°C / 10...80% rH.
Do not perform measurements in direct sunlight or while exposed to other external
sources of heat.
Do not operate HUMOR 20 in potentially-explosive areas or expose it to strong mechanical vibra­tions.
If HUMOR 20 is transported when it is ready for operation (filled with distilled water), do not tilt the
housing by more than 20°.

7

6.2 Starting up HUMOR 20

HUMOR 20 must acclimatise at least 6 hours on-site at the calibrati­on location.

Apply voltage supply.
Plug the power supply cable into the device and a grounded power outlet.

Activate the main switch.

Turn the humidity controller to the left (anti-clockwise) as far as it will
go.

Open the water tank. Ignore the warm-up time.
Use the Allen key supplied to open the screw plug.

Before opening the water tank, make sure that the humidity calibrator
is no longer under pressure. Turn the humidity controller to the left
(anti-clockwise) as far as it will go and wait until "RH > 90%" is shown
in the display of HUMOR 20.

Fill HUMOR 20 with distilled water.
Fill the humidity calibrator with max. 1,300 ml distilled (deionised)
water.
If the maximum level is exceeded, the warning WATERLEVEL HIGH
is shown in the display. If this happens, drain water until the warning
disappears (see section "9.2 Drain water").

During the filling process, make sure that no water enters the
measuring chamber.

Close the water tank.
Use the Allen key supplied to tighten the screw plug.

Wait until the warm-up phase is completed.
The warm-up phase will take 20 minutes (display: WARM UP TIME).

8

Attach the oil separator / filter set to the side of HUMOR 20, on the
bracket, and establish a connection to the input "Pressure in".

Connect the pressurised (min. 8 bar) compressed air line to the filter set.
A supply pressure less than 8 bar can cause leakage at the filter set.
(p ≤10 bar - see safety instructions)

HUMOR 20 is ready for operation.

6.3 Starting up HUMOR 20 with automatic calibration module

Setting up HUMOR 20 with the automatic calibration module.

HUMOR 20 must acclimatise at least 6 hours on-site at the calibrati­on location.

Establish a serial connection between HUMOR 20 and the automatic
calibration module. Connect "RS232-Humor" on the automatic calibra­tion module with "RS232" on HUMOR 20.
(Max. cable length allowed is 3m. The length of the supplied cable is

1.8m)

Connect the power cable to a grounded power outlet, but do not switch
on the devices yet, using the main switch!

Establish a serial connection between the automatic calibration modu­le and the PC/notebook.

First switch on HUMOR 20 using the main switch and then the auto­matic calibration module.

9

Open the water tank. Ignore the warm-up time.
Use the Allen key supplied to open the screw plug.

Before opening the water tank, make sure that the humidity calibrator
is no longer under pressure. Turn the humidity controller to the left
(anti-clockwise) as far as it will go and wait until "RH > 90%" is shown
in the display of HUMOR 20.

Fill HUMOR 20 with distilled water.
Fill the humidity calibrator with max. 1,300 ml distilled (deionised)
water.
If the maximum level is exceeded, the warning WATERLEVEL HIGH is
shown in the display. If this happens, drain water until the warning
disappears (see section "9.2 Drain water").

During the filling process, make sure that no water enters the measu­ring chamber.

Close the water tank.
Use the Allen key supplied to tighten the screw plug.

Wait until the warm-up phase is completed.
The warm-up phase will take 20 minutes (display: WARM UP TIME).

Establish a compressed-air connection between HUMOR 20 and the
automatic calibration module.

Max. allowed hose length is 1m.

Attach the oil separator to the side of the automatic calibration module,
on the bracket, and establish a connection to the input "Pressure in".

10

Connect the pressure supply (oil-free compressed air or N2).
A supply pressure less than 8 bar can cause leakage at the filter set.
(p ≤10 bar - see safety instructions)

Turn the humidity controller to the right (clockwise) as far as it will
go.

HUMOR 20 with the automatic calibration module is ready for
operation.

6.4 Verifying the 100%RH Point

To obtain the highest accuracy of the humidity measurement it is
recommended to verify the 100 %RH point every 4 weeks during con­tinues operation or each time before putting the Humor 20 into operation.

The verification has to be executed as follows:

• Turn the humidity controller counterclockwise all the way

• Disconnect the air pressure supply to the Humor

• Display reading > 95 %RH

• Open the water inlet

• Open the measuring chamber (one opening is sufficient,
see picture)

• Read the display after approx. 5 minutes:

Display reading Final conclusion on performance Required action

99.2% to 100.8%

97.0% to 99.2% and 100.8%
to 103.0%

< 97.0% and >103.0%

HUMOR within specifications A high accurate measurement can be

realized

HUMOR outside specifications Adjustment is necessary to obtain the

highest accuracy (see chapter "8.3.2.
Calibration").

HUMOR outside specifications Adjustment is not possible. There is a

problem with the humidity measure­ment / indication and the HUMOR
should be returned to E+E Elektronik
for calibration / repair.

11