E+E EE33 Operating Manual

Series EE33

HUMIDITY/TEMPERATURE

TRANSMITTER

BA_EE33_e // v15 // technical data are subject to change // 193359

MANUAL

Hardware and Software

E+E Elektronik Ges.m.b.H. doesn't accept warranty and liability claims neither upon this publication nor in case of improper treatment of the described products.

The document may contain technical inaccuracies and typographical errors. The content will be revised on a regular basis. These changes will be implemented in later versions. The described products can be improved and changed at any time without prior notice.

EMC note USA (FCC):

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

EMC note Canada (ICES-003):

CAN ICES-3 (A) / NMB-3 (A)

HARDWARE

TABLE OF CONTENTS

1. GENERAL 4

1.1 Symbol assertion 4

1.2 Safety instructions 4

1.3 Environmental information 4

2. PRODUCT DESCRIPTION 5

2.1 Operating modes and conditions 5

2.2 Survey: Model / Environmental Condition / Operating mode 6

2.3 Product features EE33 6

3. MOUNTING / INSTALLATION 7

3.1 Model C (remote sensing probe up to 120°C (248°F)) 7

3.2 Model D (remote sensing probe) 8

3.3 Model E (remote sensing probe, pressure tight up to 20bar (300psi)) 9

3.4 Model I (remote sensing probe, pressure tight up to 100bar (1450psi)) 10

3.5 Model J (2 remote sensing probes, pressure tight up to 20bar (300psi)) 11

3.6 Model K (remote sensing probe, pressure tight up to 20bar (300psi)) 12

4. ELECTRICAL CONNECTIONS 13

4.1 Connection diagram 13

4.2 Connection diagram alarm module (option) 13

4.3 Connection configuration of bottom part of the housing with plug connections

8...35V DC; 12...30V AC (option C03/C07/C08) 13

4.4 Connection configuration of bottom part of the housing with integrated power supply

100...240V AC (option V01) 13

4.5 Connection configuration of connectable sensing probe (option P03) 14

5. OPERATING COMPONENTS 14

5.1 Circuit board 14

5.2 Display module (option) 15

CONFIGURATION SOFTWARE

6. OPTIONAL MODULES (alarm module, integrated power supply, ethernet module, ARC-Module) 16

7. HUMIDITY/TEMPERATURE CALIBRATION 18

7.1 2-point humidity calibration 18

7.2 2-point temperature calibration 19

7.3 1-point humidity calibration 21

7.4 1-point temperature calibration 22

7.5 Resetting to factory calibration 23

7.6 Adjustment/Calibration EE33 model J with HUMOR 20 24

8. MAINTENANCE 25

8.1 Sensor cleaning 25

8.2 Automatic ReCover (ARC) 25

8.3 Fuse replacement 25

8.4 Self-diagnosis and error messages 26

9. NETWORK 27

9.1 RS485 network (option) 27

9.2 Ethernet - module (option) 29

10. SCOPE OF SUPPLY 33

11. REPLACEMENT PARTS / ACCESSORIES 33

12. TECHNICAL DATA 34

1. GENERAL INFORMATION 37

2. INSTALLATION 37

3. ICONS ON THE TOOLS BAR 38

3.1 File 38

3.2 Interface 38

3.3 Group 39

3.4 Transmitter 39

3.5 Information ? 40

4. ICON LIST 41

5. INDEX - INDEX CARDS 41

5.1 Analogue 41

5.2 Relay 42

5.3 Sensor / Probe replacement 43

5.4 Calibration 43

5.5 Parameter 45

5.6 Information 47

6. OVERVIEW 47

6.1 How to set-up a new transmitter? 47

6.2 How to read the configuration of a transmitter? 47

6.3 How to save the configuration in a transmitter? 47

1. GENERAL

The manual is a part of the scope of supply and serves to ensure proper handling and optimum functioning of the instrument. For this reason, the manual must be read before start-up. In addition, the manual is for all personnel who require knowledge concerning transport, setup, operation, maintenance and repair. The manual must not be used for the purpose of competition without a written consent from E+E Elektronik are permitted. All information, technical data and illustrations contained in these instructions are based on information available at the time of publication.

1.1 Symbol assertion

This symbol indicates a safety instruction.

These safety instructions should always be followed carefully. By not following these instructions injuries of persons or material damage could happen. Therefore E+E Elektronik

This symbol indicates a note.

These notes should be observed to achieve optimum functioning of the equipment.

does not accept liability.

and must also not be forwarded to third parties. Copies for personal use

1.2 Safety instructions

General Safety Instructions

Excessive mechanical loads and incorrect usage should always be avoided.

•

• Take care when unscrewing the filter cap as the sensor element could be damaged.

• The sensor is an Electro Static Discharge sensitive component (ESD). When touching

the sensor element, ESD protective measures should be followed.

• Grip sensors only at the lead wires.

• Installation, electrical connection, maintenance and commissioning should be performed

by qualified personnel only.

• The devices are constructed for the operation of separated extra-low voltage (SELV).

Safety instructions for use of the alarm module with voltages >50V

To insulate the optional alarm module from the low-voltage side of the transmitter, the

•

partition provided for this purpose must be fitted in the lower section.

• During operation of the instrument the modular housing must be completely closed.

• The protection class of an opened housing corresponds to IP00 and direct contact

with components carrying dangerous voltages is therefore possible. In general, work on live components should be avoided and when absolutely necessary, should be performed by qualified personnel only.

Safety instructions for use of the integrated power supply (option V01)

During operation of the instrument the modular housing must be completely closed.

•

• The protection class of an opened housing corresponds to IP00. In general, work on live

components should be avoided and when absolutely necessary, should be performed by qualified personnel only.

• The bottom part and the middle part of the housing must be grounded during operation.

1.3 Environmental aspects

Equipment from E+E Elektronik® is developed with due consideration to all resultant environmental issues. When you dispose the equipment you should avoid environmental pollution. For disposal of the transmitter the individual components must be sorted with care. The housing consists of recyclable metal (aluminium, Al Si 9 Cu 3). The electronics must be collected as electronic scrap and disposed of according to the regulations in force.

Hardware

2. PRODUCT DESCRIPTION

The EE33 series provides all the functions of a multifunctional humidity/temperature transmitter with one major difference - it is equipped with a heated measurement cell.

The heated measurement cell contains a combined (monolithic) humidity/temperature sensor element and enables reliable long-term measurements in extremely humid or chemically polluted environments. With a special high-pressure probe the transmitter can be used at process pressures up to 100bar (1450psi).

The operating modes of the heated measurement cell depend on the conditions. The parameters of the different operating modes are as follows:

Heat intensity:

Automatic recover: The measurement cell can be heated intensively to evaporate chemical residue or temporary condensation. Warming: The measurement cell can be warmed slightly to prevent condensation in environments with continuous high humidity.

Heating time:

The measurement cell can either be heated briefly (the heating time can be defined in the configuration software) before returning to the ambient temperature or it can be warmed continuously.

Start of heating:

Manual: Heating is started by a control element on the PCB.

Automatic: Heating is triggered when a defined humidity set point is exceeded (configuration software).

Recurrent: Heating is recurrent and triggered after a defined cycle time (configuration software).

Distinctive models, sensing probes and mounting versions allow for the EE33 series to be utilized in numerous applications.

2.1 Operating modes and conditions

2.1.1 Automatic ReCover (ARC)

Chemical pollution: When capacitive humidity sensors are exposed to chemical pollution (e.g. detergent residue), the presence of foreign molecules can distort the measurement reading.

The foreign molecules can be evaporated by heating the measurement cell briefly and intensively. Reconditioning helps to minimize distorted measurement readings during the calibration interval.

Temporary condensation: Temporary dew (e.g. in misty environments) is identified by defining a humidity set point value (e.g. 99%) and can be evaporated by heating the measurement cell intensively for 10 seconds.

Thanks to its monolithic structure, the measurement cell cools off quickly (approx. 3 minutes) to reach once again the same humidity content as the environment.

If condensation is still detected at the end of the heating and cool-down times, the process starts again after a defined cycle time (30 minutes).

Hardware

2.1.2 Overheating / Warming (OH = Overheating)

Continuous high humidity: Even the smallest deviation between the temperature of the sensor head and the ambient temperature can cause dew on the sensor element in conditions of continuous high humidity (e.g. in mushroom drying). Dew on the humidity sensor element prevents accurate measurement of the actual humidity.

However, the EE33 series minimizes the relative humidity on the measurement cell through regularly warming. The relative humidity and temperature of the warmed measurement cell can be determined precisely thanks to its monolithic structure. The dew point of the environment is calculated from the measuring values.

If the relative humidity has to be determined near condensation, the ambient temperature can be measured with an additional temperature sensor to calculate the relative humidity.

2.1.3 High process pressure up to 100 bar (1450psi) / high-pressure probe (HPP = High Pressure Probe)

Thanks to the combination of the heated measurement cell with a new high-pressure probe, the transmitter can be used in applications with high process pressure and wide working range in humidity and temperature.

The special high-pressure probe's innovative pressure tight feed through sets it apart from the remote probes in other models.

Special ball valves enable assembly without interrupting the process and are available on request.

2.2 Survey: Model / Environmental Condition / Operating mode

Order Code Model Environmental Conditions ARC OH HPP

EE33-MFTC remote sensing probe

(up to 120°C

(248°F))

temporary condensation, chemical pollution

EE33-MFTD remote sensing probe temporary condensation, chemical pollution

EE33-MFTE pressure tight probe temporary condensation, chemical pollution,

process pressure up to 20bar

(300psi)

EE33-MFTI high pressure probe temporary condensation, chemical pollution,

(1450psi)

(300psi)

EE33-MFTJ 2 remote sensing

probes

process pressure up to 100bar

continuous high humidity, condensation (RH-measurement), process pressure up to 20bar

EE33-MFTK remote sensing probe continuous high humidity,

condensation (Td-measurement),

(300psi)

EE33-PFTM 2 remote sensing

probes

process pressure up to 20bar

continuous high humidity, condensation (RH-measurement),

2.3 Product features EE33

Functions Comment EE33

Measurement of humidity and temperature  Calculation h, r, dv, Tw, Td, Tf, e  2 freely scaleable and configurable analogue outputs  On-site adjustment for relative humidity and temperature  LED indication of transmitter status / error diagnosis of probes  RS232 for transmitter configuration via PC  Configuration software standard supply  Alternating display with MIN/MAX indication optional  2 freely configurable alarm outputs optional  Connectable sensing probe optional  Data output via RS232 interface  Data output via RS485 interface optional  RS485 für Vernetzung von bis zu 32 Geräten optional  Ethernet interface for networking and remote monitoring optional  Data logging and analysis PC software optional  ARC-Module for external triggering of sensor-heating optional 

Hardware



 



3. MOUNTING / INSTALLATION

Drilling with round hole:

150 (6”)

Ø4.2 (0.16”)

DRILLING / MOUNTING TEMPLATE:

Drill the mounting holes (with round hole or long hole) according to the mounting template.

57 (2.24”)

Drilling with long hole:

148 (5.8”)

55 (2.16”)

4.5 (0.18”)

3.1 Model C (remote sensing probe up to 120°C (248°F))

Mounting of transmitter:

1. Drill the mounting holes according to the mounting template (see

drawing at the beginning of the chapter "Drilling/Mounting Template") .

2. The bottom part of the housing is mounted with 4 screws (screw diameter: < 4.2mm (0.2”) ; not included in the scope of supply).

(3.5”)

3. Connection of the transmitter (see Hardware, chapter 4 "Electrical connections").

(5.3”)

135

Mounting of sensing probe:

4. Mounting of the middle part and cover with 4 screws (included in the scope of supply).

Using the stainless steel mounting flange (refer to accessories)

it is possible to mount the probe on the outer wall of the measuring chamber. The depth of immersion is adjustable. For roof installations use the drip water protection (refer to accessories) to protect the sensor head and elements against condensed water. The sensing probe must be mounted horizontally or vertically, pointing downwards. When possible, a drip sheet should be fitted for each mounting.

Working range of sensing probe: -40...120°C

(-40...248°F)

Hardware

3.2 Model D (remote sensing probe)

Mounting of transmitter:

1. Drill the mounting holes according to the mounting template (see

drawing at the beginning of the chapter "Drilling/Mounting Template") .

2. The bottom part of the housing is mounted with 4 screws (screw diameter: < 4.2mm (0.2”) ; not included in the scope of supply).

(3.5”)

3. Connection of the transmitter (see Hardware, chapter 4 "Electrical connections").

(5.3”)

135

4. Mounting of the middle part and cover with 4 screws (included in the scope of supply).

Mounting of sensing probe:

Using the stainless steel mounting flange (refer to accessories)

Working range of sensing probe: -40...180°C

(-40...356°F)

Hardware

3.3 Model E (remote sensing probe, pressure tight up to 20bar (300psi))

Mounting of transmitter:

1. Drill the mounting holes according to the mounting template (see drawing at the beginning of the chapter "Drilling/Mounting Template") .

2. The bottom part of the housing is mounted with 4 screws (screw diameter: < 4.2mm (0.2”) ; not included in the scope of supply).

135

Mounting of sensing probe:

code “cable length”

code “probe length”

(3.5”)

(5.3”)

3. Connection of the transmitter (see Hardware, chapter 4 "Electrical connections").

4. Mounting of the middle part and cover with 4 screws (included in the scope of supply).

The sensing probe must be mounted horizontally or

vertically, pointing downwards. When possible, a drip sheet should be fitted for each mounting.

∅13 (0.51”)

adjustable min. 23 / max. 44/164/364

∅12

1/2” ISO or 1/2” NPT

(0.47”)

fixed installation (pressure tight up to 20bar

(300psi))

Working range sensing probe: -40...180°C

(-40...356°F)

Pressure range model: 0.01...20bar (0.15...300psi)

General safety instructions for installation

Because the sensing probe can be exposed to very high pressures in the measurement environment, there is the risk of sudden, unintentional expulsion of the probe during or after improper installation. Therefore, special precautions should be taken when working on the sensing probe or in its vicinity. Bending over the sensing probe should be avoided underany circumstances!

During the installation of the sensor probe, make sure that the surface of the sensing probe is not damaged! Damaging the probe could lead to damaged seals (consequence: leakage and pressure loss) and to problems during removal (jamming).

Installation of the probe directly in the process

For direct probe installation, a stop valve should be provided on both sides of the probe insert. This allows the sensor probe to be removed for maintenance and calibration without any problems.

metal sealing ring

1/2” ISO or 1/2“ NPT

inside diameter

≥ 13 mm (0.55”)

stop valve stop valve

If the sensor probe is installed in a pressure chamber, make sure that the pressure in the chamber and the ambient pressure are in equilibrium before you remove the probe.

The temperature during installation may not vary more than ±4°C (±72°F) from the operating temperature.

1st step:

Install the probe with the stop valves closed.

2nd step:

Insert the sensor probe into the process.

3rd step:

To ensure a secure installation of the probe, the lock nut must be tightened to a defined torque of 30 Nm. If no torque-spanner is available tighten the lock nut by hand as far as possible. Continue to turn with an open-ended spanner ~50°.

Hardware

3.4 Model I (remote sensing probe, pressure tight up to 100bar (1450psi))

Mounting of transmitter:

1. Drill the mounting holes according to the mounting template (see drawing at the beginning of the chapter "Drilling/Mounting Template") .

2. The bottom part of the housing is mounted with 4 screws (screw diameter: < 4.2mm (0.2”) ; not included in the scope of supply).

135

(3.5”)

(5.3”)

3. Connection of the transmitter (see Hardware, chapter 4 "Electrical connections").

4. Mounting of the middle part and cover with 4 screws (included in the scope of supply).

Mounting of sensing probe:

The sensing probe must be mounted horizontally or

code “cable length”

code “probe length”

vertically, pointing downwards. When possible, a drip sheet should be fitted for each mounting.

∅12

(0.5”)

1/2” ISO or 1/2” NPT

Working range sensing probe: -40...180°C Pressure range model I: 0...100bar (0...1450psi)

Safety Precautions for pressure tight screw connection

- Do not bleed system by loosening fitting nut or fitting plug.

- Do not make up and tighten fittings when system is pressurized.

- Always use proper thread sealants on tapered pipe threads.

- Never turn fitting body. Instead, hold fitting body and turn nut.

- Avoid unnecessary disassembly of unused fittings.

Installation instruction

Rotate the nut finger-tight. Mark the nut at the 6 o'clock position. While holding the fitting body steady, tighten the nut one and

one-quarter turns to the 9 o'clock position.

(-40...356°F)

Hardware

Installation in High-Pressure Applications and High Safety-Factor Systems

1. Rotate the nut finger-tight.

2. Tighten the nut until the tuwbing will not turn by hand or move axially in the fitting.

3. Mark the nut at the 6 o'clock position.

4. While holding fitting body steady, tighten the nut one and one-quarter turns to the 9 o'clock position.

3.5 Model J (2 remote sensing probes, pressure tight up to 20bar (300psi))

Mounting of transmitter:

1. Drill the mounting holes according to the mounting template (see

drawing at the beginning of the chapter "Drilling/Mounting Template") .

2. The bottom part of the housing is mounted with 4 screws (screw diameter: < 4.2mm (0.2”) ; not included

(3.5”)

(5.3”)

135

Mounting of sensing probe:

The sensing probe must be mounted horizontally or

code “probe length”

code “cable length”

in the scope of supply).

3. Connection of the transmitter (see Hardware, chapter 4 "Electrical connections").

4. Mounting of the middle part and cover with 4 screws (included in the scope of supply).

vertically, pointing downwards. When possible, a drip sheet should be fitted for each mounting.

∅12

∅6

(0.5”)

code “cable length” 150 (5.9”)

(0.25”)

1/2” ISO or 1/2” NPT

Mounting the two probes, please make sure that the minimum distance is 10cm (4").

(-40...356°F)

1/2” ISO or 1/2” NPT

Working range sensing probe: -40...180°C Pressure range: 0.01...20bar (0.15...300psi)

Pressure tight screw connections: The screw connections for pressure tight installation up to 20bar

(300psi) are available as accessories (see Hardware chapter 10. “Replacement Parts/Acceccories”). For screw assembly refer to Hardware chapter 3.5 “Model E (remote sensing probe, pressure tight up to 20bar (300psi))”.

Instructions for installation in a high-humidity environment:

If the process temperature differs significantly from the ambient temperature, the sensing probe should be fully emerged in the process to avoid incorrect measurements and condensation problems on the sensor head due to thermal conductivity.

It is recommended not to bring the sensing probe and colder metal parts in direct contact in order to avoid condensation problems caused by thermal conductivity.

The humidity probe (12mm (1/2")) and the temperature probe (6mm (1/4")) must be mounted at the same temperature level respectivily same installation height.

Mounting of sensing probe with flange (accessories):

A mounting flange 12mm (1/2”) for the humidity probe and a mounting flange 6mm (1/4") for for the temperature probe are available as accessories. Order codes:

RH probe (12mm (1/2")) T probe (6mm (1/4"))

flange HA010201 HA010207

Mounting of sensing probe with screw connection (accessories):

A 1/2” ISO resp. a 1/2” NPT screw connection is available as an accessories for mounting both sensing probes (6mm (1/4") and 12mm (1/2")).

Order codes:

RH probe (12mm (1/2")) T probe (6mm (1/4"))

1/2” ISO HA011102 HA011104

1/2” NPT HA011103 HA011105

Hardware

3.6 Model K (remote sensing probe, pressure tight up to 15bar (218psi))

Mounting of transmitter:

1. Drill the mounting holes according to the mounting template (see drawing at the beginning of the chapter "Drilling/Mounting Template") .

2. The bottom part of the housing is mounted with 4 screws (screw diameter: < 4.2mm (0.2”) ; not included

(3.5”)

(5.3”)

135

Mounting of sensing probe:

in the scope of supply).

3. Connection of the transmitter (see Hardware, chapter 4 "Electrical connections").

4. Mounting of the middle part and cover with 4 screws (included in the scope of supply).

Using the stainless steel mounting flange (refer to accessories) it is possible to mount the probe on the outer wall of the measuring chamber. The depth of immersion is adjustable. For roof installations use the drip water protection (refer to accessories) to protect the sensor head and elements against condensed water.

The sensing probe must be mounted horizontally or vertically, pointing downwards. When possible, a drip sheet should be fitted for each mounting.

Working range of sensing probe: -40...180°C

(-40...356°F)

Pressure range: 0.01...20bar (0.15...300psi)

Pressure tight screw connection: The screw connection for pressure tight installation up to 15bar

(218psi) is available as an accessory (see Hardware chapter 10. “Replacement Parts/Acceccories”). For screw assembly refer to Hardware chapter 3.5 “Model E (remote sensing probe, pressure tight up to 20bar (300psi))”.

Instructions for installation in a high-humidity environment:

It is recommended not to bring the sensing probe and colder metal parts in direct contact in order to avoid condensation problems caused by thermal conductivity.

Mounting of sensing probe with flange (accessories):

A 12mm

(1/2”) mounting flange (HA010201) for the humidity probe is available as an accessories.

Mounting of sensing probe with screw connection (accessories):

A 1/2" ISO (HA011102) and 1/2" NPT (HA011103) screw connection for the sensing probe is available as an accessories.

Hardware

4. ELECTRICAL CONNECTIONS

4.1 Connection diagram

RS232 / RS485

cable

white

brown

yellow

serial data output

analogue output

supply

4.2 Alarm module connection diagram (option)

Rel 1

Rel 2

4.3 Connection configuration of bottom part of the housing with plug connections /

8...35V DC; 12...30V AC (option C03/C06/C07/C08)

Description: Connection assignment:

Plug for supply and analogue output

(front view)

Euro-Standard

Plug for RS232 resp. RS484 connection

(front view)

Euro-Standard

V+ 5 GND 4 GND 3 OUT1 2 OUT2 1

Description: Connection assignment:

GND-Ser 5 Rxd/B- 3 Txd/A+ 1 not assigned 2, 4

C03

C06

C07 C08

The cable should be connected according to the number stamped in the plug as shown in the above drawings!

4.4 Connection configuration of bottom part of the housing with integrated power supply /

100...240V AC (option V01)

Description: Connection assignment:

Plug for RS232 and analogue output

(front view)

Euro-Standard

Plug for 100-240V metal housing

(front view)

Plug for 100-240V polycarbonate housing

(front view)

External diameter of supply cable: 10-12mm (0.39-0.47”) Maximum wire cross section for connecting cable: 1.5mm² (AWG 16)

The protection of the supply cable against excess current and short-circuit must be designated to a wire cross section of 0.8mm² (AWG 18) (6A fuse). National regulations for installation must be observed!

RxD / B- 5 TxD / A+ 4 GND 3 OUT1 2 OUT2 1

Description: Connection assignment:

grounding (PE) 1 phase (L1) 2 neutral wire (N) 3

Description: Connection assignment:

phase (L1) 1 neutral wire (N) 3

Bottom and middle part of the metal housing must be grounded during operation!

Hardware

4.5 Connection configuration of connectable sensing probe (option P03)

3 12

3 1

Rosa

Schwarz

Blau

Gelb

Braun

Grau

Schirm

Gelb/Grau

Schirm

12mm (0.5”) sensing probe:

grey

shielding

shielding (yellow/green)

9-pole terminal

(0.25”) sensing probe:

6mm

shielding

5-pole terminal

blue

grey (yellow/green)

grey

brown

yellow

black

brown

blue

black

pink

5. OPERATING COMPONENTS

5.1 Circuit board

After removal the housing cover, the following operating components on the circuit board may be accessed.

1. current/voltage output

2. RS232/RS485

3. fitting of the network chip

1. Current/voltage output: If the transmitter will be switched from current to voltage output signals using the configuration software supplied, then two jumpers must also be positioned as follows:

for current signal: for voltage signal:

4. display

5. diagnosis LEDS

6. push-button (heated measurement cell)

7. push-buttons (calibration)

Hardware

2. RS232/RS485: jumper set - RS232: jumper removed - RS485:

3. Fitting of the network chip: For refitting to RS485, an IC must be used (available as an option).

The notch on the chip must match the receiver slot!

4. Display: Pinboards for connecting the display module.

5. Diagnosis LEDS: refer to Hardware, chapter 7 “Humidity/Temperature Calibration”

refer to Hardware, chapter 8.4 “Self-diagnosis and error messages”

6. Push-button (heated measurement cell): refer to Hardware, chapter 8.2 “Automatic ReCover (ARC)”

7. Push-buttons (calibration): refer to Hardware, chapter 7 “Humidity/Temperature Calibration”

5.2 Display module (Option)

RH: 63.0%

MAX

RH: 63.0%

MIN

1. PHYSICAL QUANTITY:

2. UNITS:

3. SELECTION OF PHYSICAL QUANTITY:

SI US

RH Rel. humidity % %

T Temperature °C °F

e Water vapour partial pressure mbar psi

Td Dew point temperature °C °F

Tw Wet bulb temperature °C °F

EE33

Press the ∆ or ∇ button to select the desired physical quantity.

dv Absolute humidity g/m³ gr/ft³

r Mixture ratio g/kg gr/lb

h Enthalphy kJ/kg ftlbf/lb

Tf Frost point temperature °C °F

4. MIN / MAX FUNCTION:

The MIN / MAX function saves and displays the highest and lowest measured value since the last reset resp. the last interruption of the supply voltage.

Highest measured value:

1. Select the desired physical quantity.

2. To display the maximum value of the selected physical quantity, press the ∆ button for at least five seconds.

3.1. To reset the transmitter to its normal operating status, press the ∆ button once again for five seconds.

3.2. If both buttons are pressed for at least five seconds while the maximum value is displayed → the "MAX" symbol disappears → the maximum value will be deleted (Reset).

Lowest measured value:

1. Select the desired physical quantity.

2. To display the minimum value of the selected physical quantity, press the ∇ button for at least five seconds.

3.1. To reset the transmitter to its normal operating status, press the ∇ button once again for five seconds.

3.2. If both buttons are pressed for at least five seconds while the minimum value is displayed → the "MIN" symbol disappears → the minimum value will be deleted (Reset).

Hardware

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