Hach ORBISPHERE 3660EX Basic User Manual

DOC024.98.93000

ORBISPHERE Model 366x

ATEX

03/2020, Edition 8

Basic User Manual

Basis-Benutzerhandbuch

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Manuel d'utilisation simplifié

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Table of Contents

English..............................................................................................................................3

Deutsch.......................................................................................................................... 30

Italiano............................................................................................................................ 61

Français......................................................................................................................... 91

Español........................................................................................................................ 120

Čeština......................................................................................................................... 150

Dansk............................................................................................................................178

Nederlands................................................................................................................. 206

Српски......................................................................................................................... 236

Русский........................................................................................................................265

Magyar......................................................................................................................... 296

2

Table of Contents

1 Specifications on page 3

2 Expanded manual version on page 5

3 General information on page 5

4 Installation on page 10

5 Operating instructions on page 20

6 ATEX 3660 operating software on page 22

7 Calibration on page 25

8 Troubleshooting on page 28

Section 1 Specifications

Specifications are subject to change without notice.

1.1 Instrument specifications

Specification Details

Intrinsic safety certification 3660EX

LCIE 03 ATEX 6354 X II (1)/1 G EX [ia Ga] ia IIC T6 Ga

Intrinsic safety certification 3662EX

LCIE 03 ATEX 6004 X II 1 G EX ia IIC T4 Ga

Power requirements 3660EX 95 -130 VAC @ 50/60 Hz; 207-253 VAC @ 50/60 Hz

Power requirements 3662EX 6.5 - 13.5 VDC @ 50 mA maximum current; 20 mA current output

via safety barrier

Power consumption 3660EX 20 VA

Power consumption 3662EX 0.8 W

Serial output 3660EX (safe area) RS-232 or RS-485: Baud rate: 9600; Stop Bit: 1; Start Bit: 0; Parity:

None

Serial output 3662EX (safe area) RS-485: Baud rate: 9600; Stop Bit: 1; Start Bit: 0; Parity: None

Current output, safe area (3660EX only) 0–20 mA or 4–20 mA, isolated, Rmax = 500 Ω

Current output 3660EX (hazardous area) 0–20 mA or 4–20 mA, non-isolated, Rmax = 350 Ω, short circuit

current limited to 150 mA

Current output 3662EX (hazardous area) 0–20 mA or 4–20 mA, non-isolated, Rmax = 100 Ω, short circuit

current limited to 212 mA

Voltage output (hazardous area) 3662EX

only

0–2 V, non-isolated, Rmin = 100 kΩ

Alarm relays (safe area) 3660EX only High and Low relays, NO and NC contacts, rating:

Current: 2A; Voltage: 125 V; Power: 50 W / 50 VA; Hysteresis: ±1%

of high or low limit

System relay NO and NC contacts rating: Current: 2A; Voltage: 125 V; Power:

50 W / 50 VA

Operating limits 0 to 45 °C

Dimensions (W x H x D) 200 mm x 200 mm x 90 mm

Weight 2.5 kg

Enclosure rating IP 65 / NEMA 4, all stainless steel

EMC requirements (3660EX & 3662EX) EN 61326

Exproof requirements (3660EX and

3662EX)

EN 60079-0; EN 60079-11

English 3

1.2 Customer supplied cable requirements

"Safe" area analog output, alarm output, and RS-232 or RS-485 cables are "control" cables (that is,

not power cables). They must be shielded cables that meet the specifications below:

Table 1 Safe area analog and alarm output cable

External diameter ≥ 4 mm; ≤ 6 mm

Wire (core) area 0.14–0.25 mm

2

(26–24 AWG)

Insulation PVC

Nominal voltage 250 V

Absolute maximum voltage 1200 V

Absolute maximum current 1.5–2.5 A

Wire resistance 70–140 Ω/km

Capacitance @ 800 Hz wire: 100 pF/m; screen: 240 pF/m

Table 2 Hazardous area analog recorder output and RS-485 cable

Maximum length 1000 m

Number of wires 2 (twisted cable for RS-485)

External diameter 6.5 mm max

Wire (core) area 0.5 mm

2

(20 AWG) or more

Insulation PVC

Nominal voltage 250 V

Absolute maximum voltage 1200 V

Absolute maximum current 6 A

Wire resistance 39 Ω/km or less

Capacitance @ 800 Hz wire: 150 pF/m or less; screen: 290 pF/m or less

Table 3 Power cable

Number of wires 3-wire (live, neutral and earth)

External diameter ≥ 6 mm; ≤ 10.5 mm

Wire (core) area ≥ 1 mm

2

, AWG18; ≤ 2.5 mm

2

, AWG14

Table 4 External pressure sensor cable

External diameter ≥ 4 mm; ≤ 6 mm

1.3 Instrument configurations

Model Gas Phase Concentration units

366x EX / 1xx O

2

* Dissolved ppb/ppm; ppm; mg/L

Gaseous Pa/kPa; mbar/bar; %; % sat; ppm/%

366x EX / 2xx H

2

Dissolved ppb/ppm; cc/kg

Gaseous Pa/kPa; mbar/bar; %

4 English

Model Gas Phase Concentration units

366x EX / 3xx O

3

Dissolved ppb/ppm; ppm

* = CO2 and H2S insensitive options available.

Note: Temperature units are available in Centigrade [°C] or Fahrenheit [°F] on all models.

Section 2 Expanded manual version

For additional information, refer to the expanded version of this manual, which is available on the

manufacturer's website.

Section 3 General information

In no event will the manufacturer be liable for direct, indirect, special, incidental or consequential

damages resulting from any defect or omission in this manual. The manufacturer reserves the right to

make changes in this manual and the products it describes at any time, without notice or obligation.

Revised editions are found on the manufacturer’s website.

3.1 Safety information

N O T I C E

The manufacturer is not responsible for any damages due to misapplication or misuse of this product including,

without limitation, direct, incidental and consequential damages, and disclaims such damages to the full extent

permitted under applicable law. The user is solely responsible to identify critical application risks and install

appropriate mechanisms to protect processes during a possible equipment malfunction.

Please read this entire manual before unpacking, setting up or operating this equipment. Pay

attention to all danger and caution statements. Failure to do so could result in serious injury to the

operator or damage to the equipment.

Make sure that the protection provided by this equipment is not impaired. Do not use or install this

equipment in any manner other than that specified in this manual.

3.2 Use of hazard information

D A N G E R

Indicates a potentially or imminently hazardous situation which, if not avoided, will result in death or serious injury.

W A R N I N G

Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious

injury.

C A U T I O N

Indicates a potentially hazardous situation that may result in minor or moderate injury.

N O T I C E

Indicates a situation which, if not avoided, may cause damage to the instrument. Information that requires special

emphasis.

English 5

3.3 Precautionary labels

Read all labels and tags attached to the instrument. Personal injury or damage to the instrument

could occur if not observed. A symbol on the instrument is referenced in the manual with a

precautionary statement.

This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid potential

injury. If on the instrument, refer to the instruction manual for operation or safety information.

This symbol indicates that a risk of electrical shock and/or electrocution exists.

This symbol indicates the presence of devices sensitive to Electro-static Discharge (ESD) and

indicates that care must be taken to prevent damage with the equipment.

This symbol, when noted on a product, indicates the instrument is connected to alternate current.

Electrical equipment marked with this symbol may not be disposed of in European domestic or

public disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no

charge to the user.

Products marked with this symbol indicates that the product contains toxic or hazardous substances

or elements. The number inside the symbol indicates the environmental protection use period in

years.

Products marked with this symbol indicates that the product must only be used in the safe area and

never in the explosive area.

3.4 Manufacturing standard

Orbisphere 3660EX and 3662EX instruments are manufactured in conformity with the following CE

directives:

• Electromagnetic Compatibility Directive

• Low Voltage Directive

• Equipment or Protective System Intended for Use in Potentially Explosive Atmosphere Directive

The 3660EX / 3662EX instrument complies with all the requirements of the electromagnetic

compatibility standards EN 61326-1, Electrical Equipment for Measurement, Control and Laboratory

Use. The 3662EX does not sustain EN61000-4-5 Tests with safety power supply 32956.C

(24-48 VDC version).

3.5 Intrinsically safe conformity

Orbisphere series 3660EX and 3662EX analyzers for gas measurement have been certified as

Intrinsically Safe by:

• LCIE (Laboratoire Central des Industries Electriques), 33 av. Division Leclerc, Fontenay aux

Roses 92260, France.

Note: LCIE is a notified body number 0081 in accordance the European ATEX Directive.

6

English

LCIE certifies that the electrical apparatus has been found to comply with the essential Health and

Safety Requirements: EN 60079-0, EN 60079-11. These instruments are certified as follows:

• II (1)/1 G EX [ia Ga] ia IIC T6 Ga under EU type Examination Certificate number LCIE 03 ATEX

6354 X for the 3660EX

• II 1 G EX ia IIC T4 Ga under EU type Examination Certificate number LCIE 03 ATEX 6004 X for

the 3662EX

W A R N I N G

3660EX: The instrument is in the safe area and the sensor is in the hazardous area.

3662EX: The instrument and the sensor are in the hazardous area.

Table 5 ATEX Certification

Category Explanation

II (1)/1 G

ATEX marking: Surface apparatus with permanent explosive gas presence. Equipment (sensor)

to be used in the explosive area, and safety device to be used in the safe area.

II 1 G

ATEX marking: Surface apparatus with permanent explosive gas presence. Equipment (sensor)

and safety device to be used in the explosive area.

Ex Explosion-proof apparatus built to the universal standards below:

ia Type of protection: The highest category, based on a safety factor of 1.5 on two faults. No

combination of two faults in the 3660EX/3662EX can produce a spark, or heating, causing ignition

of an explosive atmosphere.

IIC Gas group: Corresponds to the most flammable gases, including hydrogen.

T6 Temperature category: Maximum surface temperature of 85º C.

T4 Temperature category: Maximum surface temperature of 135º C.

Ga Equipment protection level.

English 7

3.6 Product overview

3.6.1 System layouts

Figure 1 3660EX instrument

1 Safe area 5 31xxxE or GA2800 ATEX sensor

(max. cable length: 1000 m)

9 RS-232 or RS-485 output

2 Hazardous area 6 Sample stream 10 Current output

3 3660EX instrument 7 32570E optional external

pressure sensor (max. cable

length: 1000 m)

11 Power supply

4 Current output 8 Alarm output

Figure 2 3662EX instrument

1 Safe area 4 3662EX instrument 7 32570E optional external

pressure sensor (max. cable

length: 1000 m)

2 Hazardous area 5 31xxxE or GA2800 ATEX sensor

(max. cable length: 1000 m)

8 Current and voltage output

3 Safety barrier 6 Sample stream 9 32854: 4/20 mA repeater

8 English

3.6.2 Analog output signal

The analog output signal, representing the measured gas concentration, is available from the

instrument in the ranges from 0 to 20 mA, or in the range from 4 to 20 mA. In addition, the model

3662EX has a second analog output of 0 to 2 Volts. Depending on the instrument model, separate

output connections are available for the "safe" area and for the "hazardous" area.

Scale these outputs between two custom concentration limits. If the lower of these limits is

represented by AL, and the upper one by AH, the relation between the output current I (or voltage V)

and the gas concentration C is as follows:

0 – 20 mA C = AL + (AH - AL) * I/20

4 – 20 mA C = AL + (AH - AL) * (I - 4)/16

0 – 2 Volts C = AL + (AH - AL) * V/2

The analog output saturates at 20 mA (or 2 Volts), or is blocked at 0/4 mA (or 0 Volts) under various

conditions, as summarized below:

Analog output Explanation

0/4 mA (or 0 Volts) Thermal cutoff or below analog output low limit (AL)

0/4 mA (or 0 Volts) < signal < 20 mA Normal operating condition

20 mA (or 2 Volts) Over range, above analog output high limit (AH), or sensor disconnected

3.6.3 Alarm relay output (3660EX only)

There are three separate alarm relay connections on the instrument's output card (NO and NC), for

each alarm limit relay (High and Low), and system (SYST) alarm. The following table lists the

possible alarm conditions.

Conditions Low alarm

NC to Com*

High alarm

NC to Com*

Low alarm

NO to Com*

High alarm

NO to Com*

Alarm syst

NC to Com*

Alarm syst

NO to Com*

Instrument power

switch off

closed closed open open closed open

No alarm:

Low Limit < measured

gas < High Limit

open open closed closed open closed

Low alarm:

measured gas < Low

Limit

closed open open closed open closed

High alarm:

measured gas > High

Limit

open closed closed open open closed

System test closed open

Sensor not connected closed open open closed closed open

Thermal cut off closed open

* Low NC, High NC, Low NO, High NO, and Com identify the alarm relay connections on the instrument's output

card.

Note: The system alarm is turned on when the following situations are met:

Instrument off - Alarm high - Alarm low - Sensor out - Thermal cut off

English

9

Section 4 Installation

W A R N I N G

In accordance with safety standard EN 61010-1, it must be possible to disconnect the power supply of the

3660EX instrument in its immediate vicinity.

W A R N I N G

The installation of a 3660EX or 3662EX instrument should be performed exclusively by personnel specialized and

authorized to work on electrical installations, in accordance with relevant local regulations.

4.1 Installation diagrams

N O T I C E

The ATEX certification for the 3662EX instrument covers only the hazardous area. The customer must verify if a

certificate of conformity is required for the entire installed system, including safety barrier, power supply cable,

and eventually the communication isolator, the 4/20 mA repeater and respective cables.

Figure 3 3660EX installation

1 Safe area 7 Sensor cable (32 514E.mm) 4+shield

2 Hazardous area 8 RS-232 or RS-485

3 0/4–20 mA intr. safe compliance 5 V 9 0/4–20 mA compliance 12 V

4 Sensor cable (32 515E.mm) 10+shield 10 Gas syst. Hi/Lo alarms

5 Sensor head (31xxxE or GA2800 ATEX) 11 Power supply: 95–130 VAC 50/60 Hz;

207–253 VAC 50/60 Hz

6 Optional external pressure sensor (32 570E.wxyz)

10 English

Figure 4 3662EX installation

1 Safe area 7 Optional external pressure sensor (32 570E.wxyz)

2 Hazardous area 8 Sensor cable (32 514E.mm) 4+shield

3 Safety barrier

1

: 32956.A 110–230 VAC; 32956.C

24–48 VDC

9 0/4–20 mA shielded cable, Rload 100 Ohm max.,

compliance 2 V & 0–2V

4 Power supply shielded cable 10 Depending of barrier and cables characteristics

5 Sensor cable (i32 515E.mm) 10+shield 11 Repeater 4/20 mA (32954)

6 Sensor head (31xxxE or GA2800 ATEX)

Note: The 3662EX may be installed with a different configuration and/or accessories.

4.2 Waterproof cable gland fitting

The nickel-plated cable glands are EMC-type, and are designed to ground the cable shield to the

instrument metal case.

1

All the devices below are accessory equipments

English 11

Figure 5 Cable gland fitting

1 Cable 5 O-ring

2 Shield 6 Washers

3 Instrument 7 Gasket

4 Wire 8 Gland nut

1. Unscrew the gland nut. Inside there is a rubber seal, a metal washer with a 8.3 mm hole, and

another metal washer with a 7.5 mm hole.

2. Pass the cable through the nut, the gasket, and the 8.3 mm hole washer.

3. Strip off external insulation as required, and 25 mm of shielding. Strip the wires about 8 mm from

their ends.

4. Pass the cable through the 7.5 mm hole washer.

5. Squeeze the shield between the two washers (see Figure 5).

6. Pass the cable into the box, blocking the cable gland.

7. Tighten the cable gland nut.

8. Strip the wires about 8 mm from their ends.

9. * Solder a 1 mm

2

yellow/green cable on the cable shield end.

10. * Solder a 3 mm eyelet at the end of this cable.

11. * Attach it to the nearest ground screw.

12. Connect the wires in accordance with diagram in this section.

Note: * = only for 3662EX installed inside hazardous area

4.3 Instrument housing

The 3660EX or 3662EX instruments are designed for indoor as well as outdoor use. They are

housed in a watertight, stainless-steel enclosure designed to be installed in the safe or the hazardous

area, depending on model. The instrument case is surface mounted, either to a wall or a process

control panel, by four attachment points. Both instruments case have the same size, same mounting

dimensions and spacing needs (3660EX instrument illustrated).

12

English

Even if the instrument electronics are properly shielded, it is advisable to install the instrument as far

as possible from a possible source of electromagnetic perturbation.

The instrument panel is hinged on the left side, to gain access to keypad, mechanical switches, and

connections. A minimum of 200 mm front clearance is required to open it completely. The front panel

is held close with two screws. It will be necessary to open this panel during operation and installation.

Connections are at the bottom of the instrument. Provide at least a 150 mm bottom clearance for

cable installation.

W A R N I N G

Make sure the power supply is switched off before opening the front panel, changing any jumper settings or

making any connections in the instrument. Before connecting cables inside the instrument, make sure that they

are disconnected from any power supply.

To access the instrument's terminal block connections, open the instrument front panel, and remove

the protection cover by removing the four screws. Carefully set aside the keypad/display panel,

paying attention not to pull on the cable that connects to the power supply and output card.

4.4 Connection diagrams

Figure 6 3660EX instrument (Example is wired RS 485)

1 Connection to "hazardous area": Inside the

instrument, cables to "hazardous area" must never

overlap the "safe area".

7 Current output to hazardous area

2 Connections to "safe area": "Hazardous area"

cables must be shielded up to the connector, then

the shield must be connected to ground.

8 Alarm outputs

3 Shield wire ground 9 Current output to safe area

4 Lemo 10 10 RS-232 or RS-485

5 PG gland 11 115 or 230 VAC (L= Line, N=Neutral)

6 O2, O3 or H2 sensor (hazardous area) 12 PE-Earth

English 13

Figure 7 3660EX instrument with external pressure sensor (Example is wired RS 232)

1 Connection to "hazardous area": Inside the

instrument, cables to "hazardous area" must never

overlap the "safe area".

8 Current output to hazardous area

2 Connections to "safe area": "Hazardous area"

cables must be shielded up to the connector, then

the shield must be connected to ground.

9 External pressure sensor

3 Color code for sensor cable item no. 32514E 10 Current output to safe area and alarm outputs

4 Shield ground 11 RS-232 or RS-485

5 Lemo 10 12 115 or 230 VAC (L= Line, N=Neutral)

6 PG gland 13 PE-Earth

7 O2, O3 or H2 sensor (hazardous area)

14 English

Figure 8 3662EX instrument

1 Connections to "safe area". 6 Current or voltage output

2 "Hazardous area" cables must be shielded up to the

connector, then the shield must be connected to

ground.

7 PG gland

3 Shield ground 8 Power from safety barrier

4 O2, O3 or H2 sensor 9 J11, Filter

5 Lemo 10 10 PE-Earth

English 15

Figure 9 3662EX instrument with external pressure sensor

1 Connections to "safe area". 7 Current or voltage output

2 "Hazardous area" cables must be shielded up to the

connector, then the shield must be connected to

ground.

8 External pressure sensor

3 Shield ground 9 PG gland

4 Color codes for sensor cable item no. 32514E 10 J11, Filter

5 O2, O3 or H2 sensor 11 Power from safety barrier

6 Lemo 10 12 PE-Earth

4.5 Power input connections

C A U T I O N

Make sure that power supply meets the voltage requirement, as shown on the sticker located inside the

instrument.

4.5.1 3660EX AC (in safe area)

AC power connections for the 3660EX instrument is through the left cable gland. Attach the power

wires to the power terminal block J16.

Use a flexible cable of the type H05VV-F 3 X 0.75 mm

2

. The length of the cable should be three

meters maximum, and should have a separable plug (with three connectors, L+N+PE), without a

locking device, to mate with a socket outlet in the building. The cable and plug must conform to local

standard.

L Live (115/230 VAC, 50/60 Hz).

N Neutral.

PE Earth. This connection must be made to the ground screw on the left side of the instrument, using a 4 mm

diameter eyelet.

16 English

4.5.2 3662EX (in hazardous area)

W A R N I N G

The power for the 3662EX instrument in the hazardous area must be provided through a safety barrier from the

safe area with a shielded cable.

The power source comes from the customer’s installation. Connect a safety barrier (model ref.

32956), to the power supply output in the safe area. Maximum cable length allowed from safety

barrier to instrument is 999 m.

DC power connections for the 3662EX instrument are through the left cable gland. Attach the power

wires to the power filter block J11, and the cable shield to a ground screw (see Waterproof cable

gland fitting on page 11).

+ +6.5 to +13.5 VDC (50 mA)

-- Ground.

PE Earth. This connection must be made to the ground screw on the left side of the instrument, using a 4 mm

diameter eyelet.

4.5.3 3662EX power supply cable requirements

The power supply cable from the safety barrier to the 3662EX instrument must meet the following

criteria:

Cable loop maximum resistance, Rc (max) = {(Ug - Ui (min))/ Imax} - Rb where:

• Ug = external supply voltage, in safe area

• Ui (min) = minimum input voltage of 3662EX = 6.5V (6.5V < Ui < 13.5V)

• Rb = internal resistance of safety barrier

• Imax = average current of 3662EX (Imax = 0.050A)

Maximum cable capacitance, Cc = Cext - Ceq where:

• Cext = maximum permissible capacitance of safety barrier

• Ceq = input capacitance of 3662EX (Ceq = 38nF)

Maximum cable inductance, Lc = Lext - Leq where:

• Lext = maximum permissible inductance of safety barrier

• Leq = input inductance of 3662EX (Leq = 1.92mH)

For example, with the safety barrier (model ref. 32956) and a 24 VDC power supply, the cable

requirement is as follows:

• Rb = 226 Ω, Cext = 132 nF, Lext = 4 mH)

• Rc (max) = {(24 - 6.5)/ 0.050} - 226 = 124 Ω

• Cc = 132 - 38 = 94 nF

• Lc = 4 - 1.92 = 2.08 mH

Thus, for a 3662EX instrument installed 999 m. away (or closer) from a ref. 32956 safety barrier, the

cable must have a maximum loop resistance of 124 Ω, maximum capacitance of 94 nF, and

maximum inductance of 2.08 mH.

4.6 Analog and alarm output connections

4.6.1 Analog output and alarm cables in "Safe" area (3660EX)

4.6.1.1 Analog current output

Pass the cable through the cable gland. Attach the applicable output wires to the + and - terminals on

terminal block J18.

English

17

4.6.1.2 Alarm contacts

Pass the cable through the cable gland. Attach the "hot" alarm wire to the applicable “NO" or "NC",

data or system alarm terminal, and the return wire(s) to the "Common" terminal on the terminal block

J19.

4.6.2 Analog output cables in "Hazardous" area

Use shielded wire for these connections. Pass the cable through the cable gland. Solder an insulated

wire to the shield of about 12 cm long, with a 3 mm eyelet at the end. Attach the eyelet to the

appropriate earth (ground) screw inside the box, near the terminal block. The wire inside the box

must be as short as possible and never overlap the safe area (3660EX)

For current output, attach the applicable output wires to the + and - terminals of the "IS Current"

terminal block J20 (3660EX) or J13 (3662EX).

For voltage output, attach the applicable output wires to the + and - terminals of the "IS Voltage"

terminal block J14 (3662EX).

4.7 PC connections

Note: On the PC side, a 9-pin connector is needed. Some PC have a 25-pin connector, thus requiring a 25-to-9-pin

adapter. Make sure the adapter is designed for this purpose and that all nine pins are accessible. Some 25-to-9-pin

adapters are supplied for specific use, such as a mouse, and they may not have all the pins connected.

4.7.1 For 3660EX

PC serial connections uses a custom cable passing through the appropriate gland. For instrument to

PC connections up to 12 meters, a RS-232 cable is adequate. If the distance is greater, use an

RS-485 connection, which can run as long as 1 kilometer without a signal loss.

When using the RS-485 output, the PC requires a separate communications port. Hach Lange can

supply a card (ref. 32907) that can be mounted in a standard 16-bit PCI expansion slot.

4.7.2 For 3662EX

W A R N I N G

A connection from a 3662EX instrument to a PC must only be made when the instrument is located in the safe

area. Never connect the instrument to a PC when the instrument is located in the hazardous area.

A connection from a 3662EX instrument to a PC is required for configuration purposes and should be

done before the physical installation of the instrument in the hazardous area.

If a connection from the instrument to a PC is required after the instrument has been installed in the

hazardous area, disconnect all sensors and any other peripherals from the instrument and then

physically remove the instrument from the hazardous area and place it in the safe area.

When the instrument is in the safe area, connect a PC according to the following diagram:

18

English

Figure 10 PC connections—Safe area

1 Safety barrier

2

: 32596.B 230 VAC; 32956.A

110–230 VAC; 32956.C 24–48 VDC

3 Interface RS-485/RS-232

2 Power supply shielded cable 4 Computer cable (32 538)

Select the serial port command from the Configuration menu to select the communication port

connected to the instrument. The instrument must be connected to the PC port and turned on to get

a port communication. The Serial port configuration dialog box is displayed. Select the applicable

COM port.

Note: On most PC's, the COM1 port is used to connect a mouse, so try COM2 first.

Click OK to initialize the COM port. If the selected port in this dialog box is available, the ATEX

3660 software returns to the main menu. Otherwise, an "RS-232 ERROR" message advises to select

another port.

4.8 Gas sensor

Before making any measurements, for GA2800 sensors perform the preparation procedure in the

GA2X00 Sensor Manual and for other sensors perform the sensor service procedure as described

in the EC Sensor Manual. Gas sensors are supplied pre-wired with a LEMO-10 connector that fits in

the respective instrument socket.

4.9 External pressure sensor (optional)

The optional pressure sensor (ref. 32570E.Bxxx) is located in the hazardous area and connects to

the instrument, using the sensor cable ref. 32514E. Pass the cable through the cable gland. Solder a

6 cm insulated wire to the shield with a 4 mm eyelet at its end. Attach it to an earth (ground) screw

close to the terminal block J2.

4.10 Jumper settings

Access to this setting requires that the front panel is opened and display/keypad set aside to gain

access to the power supply and output card. Install the jumpers in the indicated position for the

required selection.

4.10.1 3660EX current output to safe area

To select the analog current output in the "safe" area for a recorder from a 0-20 mA signal to a

4-20 mA signal, set the jumpers at position J6 and J7 as follows:

2

All the devices below are accessory equipments

English 19

Figure 11 3660EX current output to safe area

1 Jumper setting for 0-20 mA current 2 Jumper setting for 4-20 mA current

4.10.2 3660EX / 3662EX current output to hazardous area

For an analog output to the "hazardous" area, set the jumpers at positions J9 and J10 (3660EX), or

at J5 and J6 (3662EX), as follows:

Figure 12 3660EX / 3662EX current output to hazardous area

1 Jumper setting for 0-20 mA current 2 Hazardous area jumper setting for 4-20 mA current

4.10.3 3660EX RS232 / RS485 communication selection

To switch from RS-232 to RS-485 (or vice versa) in the "safe" area, set the jumpers at positions J12,

J13, and J14 as follows:

Figure 13 3660EX RS232 / RS485 communication selection

1 Jumper setting for RS-232 output 2 Jumper setting for RS-485 output

Section 5 Operating instructions

The 3660EX/3662EX instrument can be operated with or without a PC connected to it, making

measurements as a gas analyzer. Data can be stored in the analyzer, and downloaded later on the

PC for analysis, using the ATEX 3660 software.

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Hach ORBISPHERE 3660EX Basic User Manual

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