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User Guide
ENG
EU ROT H E R M
3200i Series Process Indicators and Alarm Units
Applies to Model numbers 3216i, 32h8i and 3204i
Contents
Part number HA029005. Issue 1.0 Sept-05. Applies to software version 1.02
T
1
2
3
Installation and Basic Operation
1. What Instrument Do I Have?
Thank you for choosing this 3200i series Process
Indicator.
These are available as:-
Model Size Inputs
DIN
DIN
Pt100 RTD
V/mA/mV
Pt100 RTD
V/mA/mV
2 Digital
32h8i/SG 1/8
DIN
Strain gauge
Outputs
1 – Relay, Logic,
Analogue or dig in
2 – Relay, or
Analogue
4 Changeover relay
1 Changeover relay
3 Retransmission
4. Changeover relay and Transmitter
PSU
As 32h8i
As 32h8i
DIN
4
Relay outputs can be configured for alarm and events and analogue retransmission of process variable. 2wire Modbus digital communications is available in all models.
The indicator may have been ordered to a hardware code only or pre-configured using an optional ‘Quick
Start’ code. The label fitted to the side of the sleeve shows the ordering code of the indicator. If the
Quick Code shows ***** the indicator will need to be configured when it is first switched on.
This User Guide takes you through step by step instructions to help you to install, wire, configure and use the indicator. For features not covered in this
User Guide, a detailed Engineering Manual, Part No
HA029006, and other related handbooks can be downloaded from www.eurotherm.co.uk.
1.1 Unpacking Your Indicator
The following items are included in the box:
•
Indicator mounted in its sleeve
•
Two panel retaining clips
•
AN IP65 sealing gasket mounted on the sleeve
•
Component packet containing a snubber for each relay output and a 2.49
Ω resistor for current inputs (see section 2)
•
This User Guide
1.2 Dimensions Front Views
Models 32h8i
48mm
(1.89in)
96mm (3.78in)
Latching ears
Latching ears
Model 3216i
48mm
(1.89in)
Model 3204i
96mm (3.78in)
48mm
(1.89in)
96mm
(3.78in)
5
1.3 Dimensions – Side and Top Views
Side View –1/8 DIN & 1/4 DIN
96mm
(3.78in)
1 d
3
1
2
3
90mm (3.54in)
Latching ears
Panel retaining clip
IP65 Sealing Gasket
6
Side View –1/16 DIN
2
48mm
(1.89in) 1
3
1 d
3
2
2
90mm (3.54in)
3
Top View – 1/16 & 1/8 DIN
2
48mm
(1.89in)
1 d 90mm (3.54in) d = Fascia depth 1.25mm (0.5in)
1.4 Step 1: Installation
This indicator is intended for permanent installation, for indoor use only, and enclosed in an electrical panel
Select a location which is subject to minimum vibrations, the ambient temperature is within 0 and
55 o
C (32 - 131 o
F) and humidity 5 to 95% RH non condensing.
The indicator can be mounted on a panel up to
15mm thick
To ensure IP65 and NEMA 4 front sealing against dust and water, mount on a non-textured surface.
Please read the safety information in section 3 before proceeding. The EMC Booklet part number
HA025464 gives further installation information.
1.4.1 Panel Mounting the Indicator
1. Prepare a cut-out in the mounting panel to the size shown. If a number of instruments are to be mounted in the same panel observe the minimum spacing shown.
2. Fit the IP65 sealing gasket behind the front bezel of the indicator
3. Insert the indicator through the cut-out
4. Spring the panel retaining clips into place.
Secure the indicator in position by holding it level and pushing both retaining clips forward.
5. Peel off the protective cover from the display
1.4.2 Panel Cut-out Sizes
Model
3216i
45 mm
- 0.0 + 0.6
1.77 inch
-0.00, +0.02
Model 32h8i
45 mm
- 0.0 + 0.6
1.77 inch
-0.00, +0.02
92 mm - 0.0 + 0.8
3.62 inch -0.00, +0.03
92 mm
- 0.0 + 0.8
Model 3204i
3.62 inch
0.00, +0.03
7
1.4.3 Recommended minimum spacing of indicators.
Applies to all Model sizes
38mm (1.5 inch)
10mm (0.4 inch)
(Not to scale)
8
1.4.4 To Remove the Indicator from its
Sleeve
The indicator can be unplugged from its sleeve by easing the latching ears outwards and pulling it forward out of the sleeve. When plugging it back into its sleeve, ensure that the latching ears click back into place to maintain the IP65 sealing.
1.5 Ordering Code
1 2 3 4 5 6 7
1. Model No.
3216i
32h8i
3204i
1/16 DIN size
1/8 DIN size (horizontal)
1/4 DIN size
2. Function
FM FM Alarm Unit
DN
SG
DIN 3440 alarm unit
Strain Gauge Input 32h8i only
3. Power Supply
VL 24Vac/dc
VH 100–240Vac
4. Outputs (OP1, OP2, OP3)
LRXX
RRXX
LDXX
OP1 Logic, OP2 Relay *
OP1 Relay, OP2 Relay *
OP1 Logic, OP2 Analogue *
DRXX
RXXX
OP1 Analogue, OP2 Relay *
OP1 Relay
(32h8i & 3204i only)
OP1 Relay, OP3 Analogue RXDX
(32h8i & 3204i only)
* 3216i only
8 9 10 11 12 13 14
5. AA Relay (OP4)
R Relay (Form C)
6. Options
XXX Not fitted
(3216i only)
XXL Digital input A (not
32h8i/SG, optional in 3216i)
2XL
4XL
RS232 & Digital input A
(includes Dig In A except
32h8i/SG)
RS485 & Digital input A
(includes Dig In A except
32h8i/SG)
7. Fascia colour/type
G Green
S Silver
Quick Start Code (see section 4)
10. Input Adaptor
XX None
V1 1-10Vdc
A1 mA Burden Resistor
(2.49
Ω)
11. Warranty
Standard XXXXX
Extended WL005
12. Certificates
None XXXXX
CERT2 conformity
5 Point Factory calibration
13. Custom Label
XXXXX None
8/9 Product/Manual Language
ENG English
FRA French
GER German
ITA Italian
SPA Spanish
14. Special and Accessories
XXXXXX None
RES250 250
Ω ; 0-5Vdc
RES500
OP
500
Ω ; 0-10Vdc
OP
9
2. Step 2: Wiring
Key to Symbols used in the wiring diagrams
Logic (SSR drive) output Relay output
2.1 Terminal Layout 3216i Indicator
Contact input
!
mA analogue output
Ensure that you have the correct supply for your indicator. Check order code of the indicator supplied
Digital input A
+ +
Input/Output 1
Output 2
- -
+
-
Line Supply 100 to 240Vac 50/60Hz
OR Low Voltage Supply 24Vac/dc
Digital Communications
RS232
RS485
10
1A
1B
2A
2B
L
N
CT
C
LA
COM
HD
A(+)
HE
B(-)
HF
AA
AB
AC
VI
V+
V-
+
-
AA relay (OP4)
T/C Pt100
10V Potential divider module
+ +
Part No SUB21/IV10
+
100K
Ω
10V
Input
2.49
Ω
mA
mV
Sensor Input
806Ω
-
!
Ensure that you have the correct supply for your indicator. Check order code of the indicator supplied
Line Supply 100 to 240Vac 50/60Hz
OR
Low Voltage Supply 24Vac/dc
Input Connections for
32h8i/SG Indicator - Strain gauge input
Note: Dig in A is not available with this indicator
Signal | Txdcr Supply
- + Cal1 Cal2 Ext- Ext+
- +
24V
Transmitter
Supply
OP3 DC
Retrans
V/mA
- + - +
Dig in B
32h8i Indicato r
Output 1 (OP1)
Changeover
Relay
N L 3D 3C 3B 3A LC LB 2B 2A 1B 1A
V- V+ VI LA C CT HF HE HD AC AB AA
T/C - +
Sensor Input
Pt100 mV/V
-
2.49
Ω
+
Dig in A
B(-) A(+) COM
Digital Comms mA include the 2.49Ω load resistor
AA Relay
(OP4)
11
2.3 Terminal Layout 3204i Indicators
!
Ensure that you have the correct supply for your indicator. Check order code of the indicator supplied
Output 1 (OP1)
Digital Input B
DC Retrans (OP3) mA only
24V Transmitter Supply
Line Supply
100 to 240Vac 50/60Hz
OR
Low Voltage Supply
24Vac/dc
1A
1B
2A
2B
LB
LC
3A
3B
3C
3D
L
N
+
-
+
24V
-
3204i Indicator
AA
AB
AC
HD
HE
HF
CT
C
LA
VI
V+
V-
AA Relay (OP4)
COM
A(+)
B(-)
Digital
Communications
RS232 or RS485
Digital input A
+
-
T/C
+
+
2.49Ω
100KΩ
806Ω
10V Input
-
Pt100 mA/mV
10V Potential divider module
-
Part No SUB21/IV10
Sensor Input
12
The screw terminals accept wire sizes from 0.5 to 1.5 mm (16 to 22AWG). Hinged covers prevent hands or metal making accidental contact with live wires. The rear terminal screws should be tightened to 0.4Nm
(3.5lb in).
2.5 Sensor Input (Measuring Input)
•
Do not run input wires with power cables
•
When shielded cable is used, it should be grounded at one point only
•
Any external components (such as zener barriers) connected between sensor and input terminals may cause errors in measurement due to excessive and/or un-balanced line resistance, or leakage currents.
•
Not isolated from the logic outputs & digital inputs
Thermocouple Input
V+
+
Positive
V-
-
Negative
•
Use the correct compensating cable preferably shielded.
RTD Input
PRT
PRT
V-
•
The resistance of the three wires must be the same. The line resistance may cause errors if it exceeds 22
Ω.
Linear mA, or mV Inputs
Positive
V-
2.49Ω
Negative
-
•
For a mA input connect the 2.49
Ω burden resistor supplied between the V+ and V- terminals as shown. For mV omit this resistor.
Linear Voltage Inputs
V+
V-
+
0-10V
Input
-
An external potential divider is required for 3216i and 3204i available as part no
SUB21/IV10.
13
2.6 Outputs - 1/8 and 1/4 DIN
Indicators
32h8i and 3204i indicators are supplied as standard with two changeover relay outputs.
2.6.1 Output 1 & Output 4 (AA Relay)
Relay (Form C, changeover)
OP1 OP4
•
•
•
1A
1B
2A
Isolated output 240Vac CATII
AA
AB
AC
Contact rating:: 2A 264Vac resistive
Output functions: Alarm/Event
* General Notes about Relays and Inductive
Loads
High voltage transients may occur when switching inductive loads such as some contactors or solenoid valves. Through the internal contacts, these transients may introduce disturbances which could affect the performance of the instrument.
For this type of load it is recommended that a
‘snubber’ is connected across the normally open contact of the relay switching the load. The snubber recommended consists of a series connected resistor/capacitor (typically 15nF/100
Ω). A snubber will also prolong the life of the relay contacts.
A snubber should also be connected across the output terminal of a triac output to prevent false triggering under line transient conditions.
WARNING
When the relay contact is open, or it is connected to a high impedance load, it passes a current
(typically 0.6mA at 110Vac and 1.2mA at 240Vac).
You must ensure that this current will not hold on low power electrical loads. If the load is of this type the snubber should not be connected.
14
2.6.2 Output 3 Retransmission (Output 2
3216i)
•
Isolated output 240Vac CATII
OP3
•
3A
3B
+
-
Software configurable: 0-20mA or 4-20mA plus 0-5V, 0-10V, 1-
5V and 2-10V.
•
Max load resistance: 500
Ω
•
Calibration accuracy: +(<0.25% of reading +
<50
μA
•
Output functions: PV retransmission.
•
Output 2 non-isolated on 3216i
2.6.4 Digital Inputs A and B
Digital input A is not available in 32h8i/SG and optionally available on 3216i.
Dig In A Dig In B
LA
C
•
•
•
•
LB
LC
Not isolated from the sensor input
Switching: 12Vdc at 40mA max
Contact open > 500
Ω. Contact closed < 200Ω
Input functions: Please refer to the list in the quick codes.
A fixed 24Vdc supply is available to power an external transducer (not 32i6i).
3C
3D
+
-
•
Isolated output 240Vac CATII
In 32h8i/SG a 10Vdc supply is available as an excitation voltage for a bridge type transducer
•
Minimum load resistance 300
Ω
Ext1
Ext2 -
+
•
Isolated output 240Vac CATII
15
2.7 Indicator Power Supply
1. Before connecting the indicator to the power line, make sure that the line voltage corresponds to the description on the identification label.
2. Use copper conductors only.
3. The power supply input is not fuse protected.
This should be provided externally.
4. For 24V the polarity is not important.
•
•
Power Supply
L
N
Line
Neutral
24
24
24V
24V
•
High voltage supply: 100 to 240Vac, -15%,
+10%, 50/60 Hz
Low voltage supply: 24Vac/dc, -15%, +10%
Recommended external fuse ratings are as follows:-
For 24 V ac/dc, fuse type: T rated 2A 250V
For 100-240Vac, fuse type: T rated 2A 250V.
16
2.8 Example Wiring Diagram
This shows 32h8i connected to a strain gauge bridge.
N
L
Fuse
N L 3D 3C 3B 3A LC LB 2B 2A 1B 1A
R
CAL
32h8i/SG Indicator
Signal | Txdcr Supply
- +
- + Cal1 Cal2 Ext- Ext+ HF HE HD AC AB AA
-
+
Strain
Gauge
Safety requirements for permanently connected equipment state:
•
A switch or circuit breaker shall be included in the building installation
•
It shall be in close proximity to the equipment and within easy reach of the operator
•
It shall be marked as the disconnecting device for the equipment.
Note: a single switch or circuit breaker can drive more than one instrument.
2.9 Digital Communications (Optional)
Digital communications uses the Modbus protocol.
The interface may be ordered as RS232 or RS485 (2wire).
•
Isolated 240Vac CATII.
RS232 Connections
Local Ground
Screen
Rx Tx Com
HD Common
HE Rx A(+)
HF Tx B(-)
RS485 Connections
Rx Tx Com
Screen
* RS232/RS485 2-wire communications converter eg Type KD485
220Ω termination resistor on last controller in the line
Tx Rx Com
RxB/
TxB
*
RxA/
TxA
Com
Daisy Chain to further controllers
HD Common
HE Rx A(+)
HF Tx B(-)
220Ω termination resistor
Twisted pairs
17
2.10 Additional Connections for 3216i
Connections for the 3216i indicator are similar to the
3216 controller.
2.10.1 Input/Output 1 & Output 2
I/O1 may be configured as input or output.
Outputs can be logic (SSR drive), or relay, or mA dc.
Input is contact closure.
Relay Output (Form A, normally open)
OP1/2
•
•
Isolated output 240Vac CATII
1/2A Contact rating: 2A 264Vac resistive
1/2B
•
Output functions: Alarm or event
Logic (SSR drive) Output
OP1
•
Not isolated from the sensor input
1/2A
1/2B
+
-
•
•
Output ON state: 12Vdc at
40mA max
Output OFF state: <300mV,
<100
μA
•
Output functions: Alarm or event
18
DC Output
OP1/2
1A
1B -
+
•
•
•
Not isolated from the sensor input
•
Software configurable: 0-20mA or 4-20mA.
Max load resistance: 500
Ω
Calibration accuracy: 1%,
+100
μA
•
Output functions: Retransmission.
Logic Contact Closure Input (OP1 only)
•
OP1
Not isolated from the sensor input
•
Switching: 12Vdc at 40mA max
1A
1B
•
Contact open > 500
Ω. Contact closed < 150
Ω
•
Input functions: Please refer to the list in the Quick Start codes.
3. Safety and EMC Information
This indicator is intended for industrial temperature and process applications when it will meet the requirements of the European Directives on Safety and
EMC. Use in other applications, or failure to observe the installation instructions of this handbook may impair safety or EMC. The installer must ensure the safety and EMC of any particular installation.
Safety
This indicator complies with the European Low
Voltage Directive 73/23/EEC, by the application of the safety standard EN 61010.
Electromagnetic compatibility
This indicator conforms with the essential protection requirements of the EMC Directive 89/336/EEC, by the application of a Technical Construction File. This instrument satisfies the general requirements of the industrial environment defined in EN 61326. For more information on product compliance refer to the
Technical Construction File.
GENERAL
The information contained in this manual is subject to change without notice. While every effort has been made to ensure the accuracy of the information, your supplier shall not be held liable for errors contained herein.
Unpacking and storage
The packaging should contain an instrument mounted in its sleeve, two mounting brackets for panel installation and an Installation & Operating guide.
Certain ranges are supplied with an input adapter.
If on receipt, the packaging or the instrument is damaged, do not install the product but contact your supplier. If the instrument is to be stored before use, protect from humidity and dust in an ambient temperature range of -10 o
C to +70 C.
Service and repair
This indicator has no user serviceable parts. Contact your supplier for repair.
19
Caution: Charged capacitors
Before removing an instrument from its sleeve, disconnect the supply and wait at least two minutes to allow capacitors to discharge. It may be convenient to partially withdraw the instrument from the sleeve, then pause before completing the removal. In any case, avoid touching the exposed electronics of an instrument when withdrawing it from the sleeve.
Failure to observe these precautions may cause damage to components of the instrument or some discomfort to the user.
Electrostatic discharge precautions
When the indicator is removed from its sleeve, some of the exposed electronic components are vulnerable to damage by electrostatic discharge from someone handling the indicator. To avoid this, before handling the unplugged controller discharge yourself to ground.
Cleaning
Do not use water or water based products to clean labels or they will become illegible. Isopropyl alcohol may be used to clean labels. A mild soap solution may be used to clean other exterior surfaces of the product.
Safety Symbols
Various symbols may be used on the indicator. They have the following meaning:
!
Caution, (refer to accompanying documents)
Equipment protected throughout by DOUBLE
INSULATION
☺
Helpful hints
Personnel
Installation must only be carried out by suitably qualified personnel
Enclosure of Live Parts
To prevent hands or metal tools touching parts that may be electrically live, the controller must be enclosed in an enclosure.
20
Caution: Live sensors
The indicator is designed to operate if the temperature sensor is connected directly to an electrical heating element. However, you must ensure that service personnel do not touch connections to these inputs while they are live. With a live sensor, all cables, connectors and switches for connecting the sensor must be mains rated for use in 240Vac CATII.
Wiring
It is important to connect the indicator in accordance with the wiring data given in this guide. Take particular care not to connect AC supplies to the low voltage sensor input or other low level inputs and outputs. Only use copper conductors for connections
(except thermocouple inputs) and ensure that the wiring of installations comply with all local wiring regulations. For example in the UK use the latest version of the IEE wiring regulations, (BS7671). In the USA use NEC Class 1 wiring methods.
Power Isolation
The installation must include a power isolating switch or circuit breaker. This device should be in close proximity to the indicator, within easy reach of the operator and marked as the disconnecting device for the instrument.
Overcurrent protection
The power supply to the system should be fused appropriately to protect the cabling to the units.
Voltage rating
•
•
The maximum continuous voltage applied between any of the following terminals must not exceed
240Vac: relay output to logic, dc or sensor connections; any connection to ground.
The indicator must not be wired to a three phase supply with an unearthed star connection. Under fault conditions such a supply could rise above 240Vac with respect to ground and the product would not be safe.
Conductive pollution
Electrically conductive pollution must be excluded from the cabinet in which the indicator is mounted.
For example, carbon dust is a form of electrically conductive pollution. To secure a suitable atmosphere
21
in conditions of conductive pollution, fit an air filter to the air intake of the cabinet. Where condensation is likely, for example at low temperatures, include a thermostatically controlled heater in the cabinet.
This product has been designed to conform to
BSEN61010 installation category II, pollution degree 2.
These are defined as follows:-
Installation Category II (CAT II)
For equipment on nominal 230V supply, the maximum rated impulse voltage is 2500V.
Pollution Degree 2
Normally only non conductive pollution occurs.
Occasionally, however, a temporary conductivity caused by condensation shall be expected.
Grounding of the temperature sensor shield
In some installations it is common practice to replace the temperature sensor while the controller is still powered up. Under these conditions, as additional protection against electric shock, we recommend that the shield of the temperature sensor is grounded. Do not rely on grounding through the framework of the machine.
22
Over-temperature protection
When designing any control system it is essential to consider what will happen if any part of the system should fail. In temperature control applications the primary danger is that the heating will remain constantly on. Apart from spoiling the product, this could damage any process machinery being controlled, or even cause a fire.
•
•
Reasons why the heating might remain constantly on include:
• the temperature sensor becoming detached from the process thermocouple wiring becoming short circuit; the controller failing with its heating output constantly on
• an external valve or contactor sticking in the heating condition
• the controller setpoint set too high.
Where damage or injury is possible, we recommend fitting a separate over-temperature protection unit,
with an independent temperature sensor, which will isolate the heating circuit.
This indicator can be used in addition to a controller as an over temperature device. It is recommended that the relay used to indicate the alarm condition should be set to high alarm configured with sensor break and inverse ‘
Inv’ operation so that it relaxes to the alarm condition when power is removed.
Installation requirements for EMC
To ensure compliance with the European EMC directive certain installation precautions are necessary as follows:
•
For general guidance refer to Eurotherm Controls
EMC Installation Guide, HA025464.
•
When using relay outputs it may be necessary to fit a filter suitable for suppressing the emissions.
The filter requirements will depend on the type of load. For typical applications we recommend
Schaffner FN321 or FN612.
•
If the unit is used in table top equipment which is plugged into a standard power socket, then it is likely that compliance to the commercial and light industrial emissions standard is required.
In this case to meet the conducted emissions requirement, a suitable mains filter should be installed. We recommend Schaffner types
FN321 and FN612.
Routing of wires
To minimise the pick-up of electrical noise, the low voltage DC connections and the sensor input wiring should be routed away from high-current power cables. Where it is impractical to do this, use shielded cables with the shield grounded at both ends. In general keep cable lengths to a minimum.
23
4. Switch On
If the indicator is new and has not previously been configured it will start up showing the ‘Quick
Configuration’ codes. This is a built in tool which enables you to configure the input type and range, the output functions and the display format.
!
Incorrect configuration can result in damage to the process and/or personal injury and must be carried out by a competent person authorised to do so. It is the responsibility of the person commissioning the instrument to ensure the configuration is correct
The quick code consists of two
‘SETS’ of five characters. The upper section of the display shows the set selected, the lower section shows the five digits which make up the set.
Adjust these as follows:-.
24
1. Press any button .
The first character will change to a flashing ‘-‘.
V
2. Press or
W
to change the flashing character to the required code shown in the quick code tables –see next page. Note: An x indicates that the option is not fitted.
°
3. Press to scroll to the next character.
☺
You cannot scroll to the next character until the current character is configured.
☺
To return to the first character press .
When all five characters have been configured the display will go to Set 2.
When the last digit has been entered press
° again, the display will show
Press
V
or
W
to . The indicator will then automatically go to the operator level.
SET 1
Input Type
G Strain gauge
32h8i only
Thermocouple
S
T
N
R
B
J
K
L
C
RTD
Type B
Type J
Type K
Type L
Type N
Type R
Type S
Type T
Custom C
3
6
0
1
P Pt100
Linear (all units)
M
2
4
0-80mV
0-20mA
4-20mA
Linear 32h8i only
0-10Vdc
1-5Vdc
2-10Vdc
0-5Vdc
K C H C 0
6
7
8
9
A
B
2
3
4
5
0
1
Display units
Temperature
C
F
K
X
P o o F
K
None 4
2
3
Decimal point
0 nnnnn (1) nnnn.n (1) nnn.nn (1) nn.nnn (1)
% n.nnnn (1)
Pa mPa
Kpa
Bar mBar
PSI
32h8I/SG only:
D
E
G
H
J
L
Kg/cm 2 mmWG inWG mmHG
Torr
L-H Y
Z
M
R
T
U
W
Amp mA mV
Ohm ppm
RPM m-s
L-m
%RH
%O2
%CO2
%CP
V
PV Colour (2)
32h8i only
G
R
C
X
Green
Red
Colour change on
Alarm. Green to red
Not applicable
Set 1 is followed with R N G . H I
Home display
N
A
1
2
PV only
First Alarm SP only
PV + Alarm SP
R/W
PV + Alarm SP
R/O
Set this for the maximum display range required
R N G . L o display range required
Set 2 follows these See next page parameters
(1) Up to 2 decimal places on 3216i and 3204i
Up to 4 decimal places on 32h8i
(2) Colour change on top part of display only
25
SET 2
X
OP1
Unconfigured
Relay or Logic Output
Alarm 1
H
L
R
N
O
P
High alarm
Low alarm
Rate-of change - Rising
New alarm flag
Sensor break
Power fail
8
9
With sensor Break
7 High alarm
Low alarm
Rate-of change
With power Fail
A
B
High alarm
Low alarm
C Rate-of change
With sensor
Break and power fail
E High alarm
F
G
Low alarm
Rate-of change
H 3 L W V
OP2/OP3
X Unconfigured
Analogue Output
PV Retransmission
1 4-20mA
2 0-20mA
3 0-5Vdc
4 1-5Vdc
5 0-10Vdc
6 2-10Vdc
32h8i only
For 3216i see additional codes on the following page
W
26
H
L
R
N
O
P
X
OP4 (AA Relay)
Unconfigured
Alarm 4
High alarm
Low alarm
Rate-of change-Rising
New alarm flag
Sensor break
Power fail
With sensor Break
7 High alarm
8 Low alarm
9 Rate-of change
With power fail
A
B
High alarm
Low alarm
C Rate-of change
With sensor
Break and power fail
E High alarm
F
G
Low alarm
Rate-of change
V
Y
T
J
M
X
Digital input A and B
Unconfigured
(Dig in A not available on
32h8i/SG)
W
K
U
D
Alarm acknowledge
Keylock
Remote up button
Remote down button
Recipe 2/1 select
Alarm Inhibit
Peak Reset
Freeze PV
Tare correction
Z Automatic zero and span calibration –
32h8I/SG only
Additional Quick Codes for 3216i - SET 2
Relay or Logic Output
Alarm 2 (3216i only)
H
L
High alarm
Low alarm
R
N
O
P
Rate-of change-Rising
New alarm flag
Sensor break
Power fail
With Sensor break
OP2
7
8
9
High alarm
Low alarm
Rate-of change
With power Fail
A High alarm
E
F
G
B Low alarm
C Rate-of change with sensor break and power fail
With Sensor break and power Fail
High alarm
Low alarm
Rate-of change
1 K
Analogue Output
OP1
2
PV Retransmission
(3216i only)
1 4-20mA
0-20mA
Logic Output
Digital input (3216i)
W
K
U
D
V
Alarm acknowledge
Keylock
Remote up button
Remote down button
Recipe 2/1 select
27
4.1.1 To Re-Enter Quick Code Mode
If you need to re-enter the ‘Quick Configuration’ mode this can always be done as follows:-
1. Power down the indicator
2. Hold button down and power up the indicator again. Keep the button pressed until you are requested to enter a passcode.
3. Enter a passcode using the
V
or
W buttons. In a new indicator the passcode defaults to 4. If an incorrect passcode is entered you must repeat the whole procedure.
☺
Parameters may also be configured using a deeper level of access. This is described in the
3200i Engineering Handbook Part No. HA029006.
This may be downloaded from www.eurotherm.co.uk
.
28
4.2 Pre-Configured Controller or
Subsequent Starts
A brief start up sequence consists of a self test in which all elements of the display are illuminated and the software version number is shown.
The indicator will briefly show the quick codes during start up, then proceed to Operator Level 1.
You will see the display shown below. It is called the HOME display.
32h8i example
Process Value
Message Centre
Status Beacons
☺
If the Quick Codes do not appear during start up, this means that the indicator has been configured in a deeper level of access, see previous note. The quick codes may then not be valid and are therefore not shown.
4.3 Front panel layout
Beacons:-
ALM Alarm active (Red)
OP1 Lit when output 1 is ON
OP2 This appears in 3216i only and is lit when output 2 is ON
OP3 Lit when output 3 is configured to retransmit the process value
OP4 Lit when output 4 is ON
Operator Buttons:-
From any display - press to return to the
HOME display.
°
Press to select a new parameter. Hold down to continuously scroll through parameters.
W
Press to change or decrease a value.
V
Press to change or increase a value.
Message Centre
A scrolling message may appear in this section.
For example, if a high alarm is configured to operate output 1, and a low alarm is configured to operate output 4, the scrolling messages ‘ALARM
1 HIGH’ and ‘ALARM 4 LOW’ are shown together with the beacons ‘ALM’, ‘OP1’ and
‘OP4’. ‘ALM’ flashes if the alarm has not been acknowledged.
If the input sensor is broken ‘
S.br’ appears in the top display and the scrolling message ‘INPUT
SENSOR BROKEN appears in the message centre.
29
4.3.1
Alarm Indication
Up to four alarms can be configured. If any alarm occurs, the red ALM beacon will flash. A scrolling text message will describe the source of the alarm, for example ALARM 1 HIGH. Any output attached to the alarm will operate.
Press and
°
(Ack) together to acknowledge the alarm
If the alarm is still present the ALM beacon will light continuously.
By default alarms are configured as non-latching, deenergised in alarm. If you require latched alarms, please refer to the engineering handbook.
4.3.2
Out of Range Indication
If the input is too high HHHHH will be displayed
If the input is too low LLLLL will be displayed
4.3.3 Sensor Break Indication
An alarm condition (
S.br) is indicated if the sensor or the wiring between sensor and controller becomes open circuit.
For a PRT input, sensor break is indicated if any one of the three wires is broken.
For mA input sensor break will not be detected due to the load resistor connected across the input terminals.
For Volts input sensor break may not be detected due to the potential divider network connected across the input terminals.
30
4.4 Operator Parameters in Level 1
Operator level 1 is designed for day to day operation of the indicator and access to these parameters is not protected by a pass code.
Press
° to step through the list of parameters.
mnemonic of the parameter is shown in the lower
The display. After five seconds a scrolling text description of the parameter appears.
Parameter
Mnemonic
HIGH
Scrolling text and Description
PEAK HIGH
LOW tare
PEAK LOW
TARE FUNCTION
Linear inputs only
See also section 4.4.1.
A1 (----)
A2 (----)
A3 (----)
A4 (----)
ALARM 1 SETPOINT
ALARM 2 SETPOINT
ALARM 3 SETPOINT
ALARM 4 SETPOINT
The value of the parameter is shown in the upper display. In level 1 the value is read only.
The parameters that appear depend upon the functions configured. They are:-
Availability
This is the highest reading that the indicator has recorded since switch on or since it was reset
This is the lowest reading that the indicator has recorded since switch on or since it was reset
OFF
No tare correction
On
Select to automatically correct for tare weight faiL
Displayed if tare correction cannot be made
(----) shows the type of alarm configured. For example HI, LO, ROC. This parameter sets the alarm thresholds.
31
Tare correction can be made in Operator Level 1. It is used, for example, when it is required to weigh the contents of a container but not the container itself.
The procedure is to place the empty container on the weigh bridge and ‘zero’ the indicator. Since it is likely that following containers will have different tare weights the tare function is available in operator level 1.
1. With the empty container placed on the weigh cell, repeatedly press
° displayed.
until TARE is
V
2. Press or
W to select
On
3. The weight of the container will automatically be taken form the total weight.
4.
FaiL will be displayed if the tare function fails, for example, if the weight is outside the high and low limits or a sensor break condition occurs. In this case correct the fault and repeat the procedure.
32
Alternatively, a digital input may have been set by selecting T in the quick codes (section 4.1) to provide this function via an external source such as a switch or pushbutton. In this case pressing the button will have the same effect as selecting ‘
On’ in 2 above.
5. Operator Level 2
Level 2 provides access to additional parameters. It is protected by a security code.
5.1 To Enter Level 2
1. From any display press and hold
.
2. After a few seconds the display will show:-
3. Release
.
(If no button is pressed for 45 seconds the display returns to the HOME display)
V
4. Press or
W to choose
Lev 2 (Level 2)
5. After 2 seconds the display will show:-
V
6. Press or
W
to enter the pass code. Default = ‘
2’
7. If an incorrect code is entered the indicator reverts to Level 1.
5.1.1 To Return to Level 1
1. Press and hold
W
2. Press to select
LEv 1
The indicator will return to the level 1 HOME display. Note: A pass code is not required when going from a higher level to a lower level.
33
5.2 Level 2 Parameters
As in Level 1, press
° to step through the list of parameters.
The mnemonic of the parameter is shown in the message centre. After five seconds a scrolling text description of the parameter appears.
Backscroll is achieved when you are in this list by repeatedly pressing
V while holding down
°
.
The value of the parameter is shown in the upper
To return to the HOME display at any time, press
. display. Press
V or
W to adjust this value.
If no key is pressed for 30 seconds the controller returns to the HOME display.
Mnemonic
PRST
HIGH
LOW tare
The following table shows a list of parameters available in Level 2.
Scrolling Display and description
PEAK RESET Select On to reset the HIGH and LOW peak values. The display automatically returns to OFF
PEAK HIGH This is the highest reading that the indicator has recorded since switch on or since it was reset
Range
OFF
ON
Read only
PEAK LOW This is the lowest reading that the indicator has recorded since switch on or since it was reset
TARE FUNCTION
Linear inputs only
See also section 4.4.1.
OFF
On faiL
No tare correction
Read only
Select to automatically correct for tare weight
Displayed if the tare correction cannot be made
Continued on next page W
34
Mnemonic Scrolling Display and description Range
SG.TYP
ADDR
STRAIN GAUGE CALIBRATION TYPE Select the calibration for the type of sensor in use.
SHnt
SHUNT
SHUNT CALIBRATION To set the high calibration point for a bridge type strain gauge or pressure transducer.
STRAIN GAUGE LOW CAL 32h8i/SG only. See also section 5.3.
ComP
CELL
Comparison
Load cell
OFF or 40.0 to 100.0%
LO.CAL
Hi.CAL aut,sg
A1 (----)
STRAIN GAUGE HIGH CAL 32h8i/SG only. See also section 5.3.
STRAIN GAUGE AUTO CAL
32h8i/SG only. See also section 5.3.5.
ALARM 1 SETPOINT
A2 (----) ALARM 2 SETPOINT
A3 (----) ALARM 3 SETPOINT
A4 (----)
ALARM 4 SETPOINT
No yes Perform automatic strain gauge calibration
(----) shows the type of alarm configured. For example
HIGH, LOW,
ADDRESS Digital communications address for the instrument 1 to 254
Strain gauge bridge
HOME HOME DISPLAY This configures the parameter which will be displayed in the HOME display in normal operation
PV aLm
Process variable
Alarm setpoint pv.aL p.a.ro
PV + Alarm SP
PV + Alarm SP read only
Continued on next page W
35
Mnemonic
ID
Scrolling Display and description
CUSTOMER ID Customised instrument identification number
REC.NO CURRENT RECIPE NUMBER The recipe currently in use.
See also section 5.4
STORE RECIPE TO SAVE
See also section 5.4
Range
0 to 9999 none
1 - 5
No recipe
1 to 5 selected
FaiL none
1 - 5
Fail is shown if no recipe is saved
No recipe to store
1 to 5 done Recipe saved
Continued on next page W
36
Mnemonic
UNITS
* These units only appear in
32h8i indicators
O C
Scrolling Display and description
DISPLAY UNITS The display units are shown in the top right hand corner of the display in normal operation. Units available are:- o C O F o F none mpa mbar mmwg torr p.rh
No units displayed
Mpascals * milli Bar * mm water gauge *
Torr *
Perc kpa psi inwg
L-H p.O 2
Percentage
Kpascals *
PSI *
Inches water gauge *
Litres per hour *
P.CP
ma ppm
SEC
%Relative humidity*
% carbon potential* milli amps *
Parts per million *
VoLt mV rpm min
% O2 *
Volts * milli volts *
Revs per minute *
PH mG
Seconds *
Ph * milli grams *
P.PH
GrAm
Minutes *
% Ph *
Grams *
Range
O k pa bar kgcm mmhg
L-m p.CO2
Amp
Ohm m-s hrs mPH kG
☺
Press
☺
Hold
°
at any time to return immediately to the HOME screen at the top of the list.
down to continuously scroll through the above list
Kelvin
Pascals *
Bar * kg/sq cm * mm mercury *
Litres per minute *
% CO2 *
Amps *
Ohms * milli seconds *
Hours *
Miles per hour *
Kilo grams *
37
5.3 Strain Gauge Calibration
Different strain gauge transducers may be connected to a 32h8i/SG indicator. It is generally necessary to calibrate the instrument to the transducer in use. This can be done in Operator Level 2 using any one of three methods. These are:-
CELL. Here a load cell is connected directly to the input terminals marked Signal + and – (section 5.3.1).
COMPARISON. The load cell is connected as above but the calibration is compared with a reference device or reference weight (section 5.3.2).
SHUNT. This is so called since it refers to switching a calibration resistor across one arm of a four wire measurement bridge in a strain gauge transducer
(section 5.3.3).
The calibration for each of these can be made in Level
2 as described in the following sections.
To configure the different modes:-
In Level 2, press
°
V
to scroll to SG.TYP and press or
W
to select
CeLL, COmp or shnt
38
5.3.1 Load Cell Calibration
Connect a load cell as shown below:-
N
L
Fuse
N L 3D 3C 3B 3A LC LB 2B 2A 1B 1 A
Load Cell
32h8i/SG Indicator
Signal | Txdcr Supply
- +
- +
CalI Cal2 Ext- Ext+
HF HE HD AC AB AA
1. In Level 2, press
°
to scroll to LO.CAL.
2. Remove all weight from the load cell and press
V or
W
to select yes
3. The indicator will show busy as it calibrates the zero weight condition. pass or faiL will be indicated when the low point calibration is complete.
4. Now add a weight which represents the full scale span of the load cell
5. Repeat the above to calibrate the high point –
HI.CAL.
Comparison calibration is most appropriate when calibrating the indicator against a second reference device.
The load cell is connected as shown in the previous example.
1. In Level 2, press
°
to scroll to LO.CAL and press
V or
W
to select yes
°
2. Press to scroll to the next parameter -
C.ADJ (CALIBRATION ADJUST)
V
3. Press or
W
to set the low value calibration point as indicated by the reference device. As soon as the value is entered the indicator will show busy as it calibrates the minimum weight condition. pass or faiL will be indicated when the low point calibration is complete.
4. Repeat the above steps to calibrate the high point - HI.CAL
N
L
A bridge type strain gauge is connected as shown.
Depending on the type of gauge, R
CAL
may be included internally or supplied as a separate item.
Fuse
N L 3D 3C 3B 3A LC LB 2B 2A 1B 1A
R
CAL
32h8i/SG Indicator
Signal | Txdcr Supply
- +
- +
CalI Cal2 Ext- Ext+
HF HE HD AC AB AA
-
+
Strain
Gauge
The high (span) and low (zero) adjustment of the transducer can be performed automatically or manually. Manual allows the low point and high point to be calibrated individually. Automatic performs both low and high point calibration by the selection of one parameter.
39
1. Remove all pressure from the transducer to establish a zero reference
°
2. Press to scroll to SHUNT and press
V or
W
to select the high calibration point for the type of sensor in use. This will normally be
80.0%
°
3. Press to scroll to LO.CAL and press
V or
W
to select yes
4. The indicator will show busy as it calibrates the minimum weight condition. pass or faiL will be indicated when the low point calibration is complete.
°
5. Press to scroll to HI.CAL and repeat the above steps to calibrate the high point - HI.CAL
1. Remove all pressure from the transducer to establish a zero reference
2. In Level 2, press
°
to scroll to AUT.SG
V
3. Press or
W
to select yes
The indicator will automatically perform the following sequence:- a. Disconnect the calibration resistor R
CAL b. Calculate the low point calibration value by continuously averaging two sets of 50 measurements of the input until stable readings are obtained.
Lo will be indicated during this process. c. Connect the calibration resistor by closing a contact between terminals VI and LA d. Calculate the high point calibration value by continuously averaging two sets of 50 measurements of the input until stable readings are obtained.
Hi will be indicated during this process.
40
5.3.6 Calibration Using a Digital Input
A digital input may have been set by selecting Z in the quick codes (section 4.1) to allow the transducer to be calibrated automatically via an external source such as a switch or pushbutton. In this case pressing the button will have the same effect as selecting yes in 3 above.
5.3.6.1 Fail
Fail will be displayed in any of the above calibration procedures if the calibration is not possible. For example, the input shows Sensor Break or is out of range or the transducer or load cell is not connected correctly. It is necessary to correct the fault and start the procedure again.
41
5.4 Recipes
It is possible to store operating values in up to five different recipes by taking a snapshot of the current settings and storing these in a recipe number.
Examples, of typical operating parameters may be alarm setpoint values. A particular recipe number may then be recalled for a particular process.
5.4.1 To Store Values in a Recipe
1. In the list of parameters, press store
°
to select
2. Select a recipe number from 1 to 5 in which to store the current settings. The indicator will show done when the values are stored. All previous values which may have been stored in this recipe are overwritten.
42
5.4.2 To Load a Recipe
1. In the list of parameters, press
° rec.no
to select
2. Select a recipe number from 1 to 5 in which the required settings have been stored. The values will automatically loaded from the recipe. If no values have been stored in that recipe, faiL will be indicated.
This indicator meets the European directives on safety and EMC
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© Copyright Eurotherm Limited 2005
All rights are strictly reserved. No part of this document may be reproduced, modified, or transmitted in any form by any means, nor may it be stored in a retrieval system other than for the purpose to act as an aid in operating the equipment to which the document relates, without the prior written permission of Eurotherm limited.
Eurotherm Limited pursues a policy of continuous development and product improvement. The specifications in this document may therefore be changed without notice. The information in this document is given in good faith, but is intended for guidance only. Eurotherm Limited will accept no responsibility for any losses arising from errors in this document.
HA029005/1 CN21593
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ED43
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