Eurotherm Chessell 394 User manual

394
ε
EUROTHERM
CHESSELL
Model 394
Chart recorder
Installation and
operation manual
394

Eurotherm Recorders hereby declares that the above products conform to the safety and
EMC specifications listed. Eurotherm Recorders further declares that the above products
comply with the EMC Directive 89 / 336 / EEC amended by 93 / 68 / EEC, and also with
the Low Voltage Directive 73 /23 / EEC
Declaration of Conformity
Signed for and on behalf of Eurotherm Recorders
Peter De La Nougerède
(Technical Director)
Signed: Dated:
IA249986U130 Issue 1 Mar 98
Manufacturer's name: Eurotherm Recorders Incorporated
Manufacturer's address One Pheasant Run,
Newtown Industrial Commons,
Newtown, PA 18940 USA.
Product type: Industrial chart recorder
Model: 394 (Status level B2 or higher)
Safety specification: EN61010-1: 1993 / A2:1995
EMC emissions specification: EN50081-2 (Group1; Class A)
EMC immunity specification: EN50082-2
All rights are strictly reserved. No part of this document may be reproduced, stored in a retrieval
system or transmitted in any form, or by any means, without the prior, written, permission of the
copyright owner.
Eurotherm Recorders Inc. reserves the right to alter the specification of its products from time to time
without prior notice. Although every effort has been made to ensure the accuracy of the information
contained herein, it is not warranted or represented by Eurotherm Recorders Inc. to be a complete or
up-to-date description of the product.
© 1999 Eurotherm Recorders Inc.

MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section i
Page i - 1
HA250385
Issue 4 Feb 99
Circular Chart Recorder
Installation and Operation Manual
Overall contents list
Section Page
(Continued)
SECTION i PREAMBLE......................................................... i - 1
SAFETY NOTES ........................................................................ i - 3
SECTION 1 INSTALLATION.................................................. 1 - 1
1.1 UNPACKING THE RECORDER ............................................. 1 - 2
1.2 INSTALLATION................................................................... 1 - 2
1.3 CHANGING THE CHART.................................................... 1 - 7
1.4 CHANGING THE CARTRIDGE............................................. 1 - 8
SECTION 2 BASIC OPERATION ........................................... 2 - 1
2.1 POWER UP ....................................................................... 2 - 2
2.2 BACKGROUND DISPLAY .................................................... 2 - 2
2.3 ALARM INDICATION.......................................................... 2 - 3
2.4 KEY/DISPLAY FUNCTIONS ................................................. 2 - 3
2.5 CONFIGURATION EXAMPLE............................................... 2 - 5
SECTION 3 OPERATOR MENUS........................................... 3 - 1
3.1 INTRODUCTION................................................................ 3 - 3
3.2 TOP LEVEL OPERATOR MENUS ........................................... 3 - 3
3.3 CHART SUBMENU ............................................................. 3 - 3
3.4 ALARM SUMMARY PAGE.................................................... 3 - 5
3.5 ALARM SETUP PAGE .......................................................... 3 - 6
3.6 ACTION ........................................................................... 3 - 6
3.7 CLOCK ............................................................................. 3 - 6
3.8 SYSTEM ERROR .................................................................. 3 - 7
3.9 CONFIGURATION .............................................................. 3 - 7
3.10 CALIBRATE CHART ........................................................... 3 - 8
3.11 OPERATOR MENUS SUMMARY......................................... 3 - 9
SECTION 4 CONFIGURATION ............................................. 4 - 1
4.1 INTRODUCTION................................................................ 4 - 3
4.2 CONFIGURATION TECHNIQUES ........................................ 4 - 7
4.3 INSTRUMENT CONFIGURATION ........................................ 4 - 8
4.4 CHART CONFIGURATION .................................................. 4 - 9
4.5 CHANNEL CONFIGURATION .............................................. 4 - 11
4.7 OPERATOR ACTION CONFIGURATION............................... 4 - 21
4.8 CLOCK CONFIGURATION ................................................. 4 - 21
4.9 MESSAGE CONFIGURATION ............................................. 4 - 22
4.10 INTERNAL EVENTS .......................................................... 4 - 23
4.11 CONFIGURATION TRANSFER ........................................... 4 - 25
4.12 NOT USED...................................................................... 4 - 26
4.13 OPERATOR ACCESS ........................................................ 4 - 26
4.14 ADJUST........................................................................... 4 - 27
4.15 DEFAULT CONFIGURATION .............................................. 4 - 28
4.16 CONFIGURATION MENUS SUMMARY .............................. 4 - 30

HA250385
Issue 2 Mar 98
Section i
Page i - 2
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
List of contents (Cont.)
Section Page
SECTION 5 REFERENCE....................................................... 5 - 1
5.1 COSHH ............................................................................ 5 - 3
5.2 ERROR MESSAGES ............................................................ 5 - 5
5.3 LIST OF EFFECTIVE PAGES .................................................. 5 - 6
5.4 GLOSSARY OF TERMS ....................................................... 5 - 7
ANNEX A TECHNICAL SPECIFICATION................................. A - 1
A1 TECHNICAL SPECIFICATION (RECORDER)............................. A - 2
A2 TECHNICAL SPECIFICATION (INPUT BOARD) ........................ A - 3
A3 TECHNICAL SPECIFICATION (RELAY BOARD) ........................ A - 4
INDEX
Questions concerning installation, performance or service should be directed to the company
from which the insturment was purchased.
NOTE

MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section i
Page i - 3
HA250385
Issue 4 Feb 99
STATIC ELECTRICITY
High voltages (tens of kilo-volts) can be generated on the human skin through a number of mechanisms, such as fric-
tion between different materials (e.g. nylon and skin), and separation of similar materials (e.g. masking tape, nylon
sheet). The gate-oxide region of all metal oxide semiconductors (MOS) is extremely thin, and can be damaged by
voltages as low as 60 Volts. Modern MOS devices have built-in clamp diodes which reduce the incidence of obvious
static damage considerably. It is possible however, even with such clamping diodes, to produce a small rupture in the
oxide layer. This might not destroy the device immediately, but it may result in a gradual reduction in the performance
of the device until, eventually, it fails.
For this reason, the following precautions should be taken when handling any recorder circuit board.
1. Personnel handling MOS devices, or circuit boards containing them, should wear antistatic materials such as
cotton. Nylon clothing should be avoided.
2. All bench tops should be covered with conductive material (104to 105Ohms per square) maintained at the re-
corder chassis potential.
3. Circuit boards removed from a recorder should be placed into a static-safe bag, initially at the recorder chassis
potential, for storage. Before re-fitting the board, the containing bag should again be returned to the recorder
chassis potential.
4. Personnel handling MOS devices, or boards containing them, should wear a wrist strap connected (via a safety
resistor) to the bench top, or if appropriate, to a suitable grounding point on the rack.
5. Leads of MOS devices removed from circuit should be shorted together using conductive foam or similar.
6. MOS devices should not be extracted from or inserted into circuit whilst the circuit board has power applied.
TERMINOLOGY
Antistatic
This term means that the material in question does not of itself generate static electricity. Such materials do not afford
protection against external electric fields.
Static safe
This means that the material in question:
a) does not generate static electricity, and
b) any device enclosed in such material is safe from the effects of external electric fields.

HA250385
Issue 4 Feb 99
Section i
Page i - 4
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Safety Notes
1. Before any other connection is made, the protective earth ground terminal shall be connected to a protective con-
ductor. The supply voltage (mains) wiring must be terminated in such a way that, should it slip in the cable
clamp, the Earth ground wire would be the last wire to become disconnected.
2. In the case of portable equipment, the protective earth ground terminal must remain connected (even if the recorder
is isolated from the supply voltage), if any of the I/O circuits are connected to hazardous voltages*.
WARNING!
Any interruption of the protective conductor inside or outside the apparatus, or disconnection of the pro-
tective earth ground terminal is likely to make the apparatus dangerous under some fault conditions. Inten-
tional interruption is prohibited.
3. The line voltage fuse within the power supply unit is not replaceable. If it is suspected that the fuse is faulty, the
manufacturer's local service center should be contacted for advice.
4. Whenever it is likely that protection has been impaired, the unit shall be made inoperative and secured against
unintended operation. The nearest manufacturer's service center should be consulted for advice.
5. A switch or circuit breaker shall be included when installing this instrument. It shall be in close proximity to the
instrument and within easy reach of an operator. It shall be marked to indicate that it will disconnect this
instrument.
6. Any adjustment, maintenance and repair of the opened apparatus under voltage, should be avoided as far as possi-
ble and, if inevitable, shall be carried out only by a skilled person who is aware of the hazard involved.
7. Where conductive pollution (e.g. condensation, carbon dust) is likely, adequate air conditioning/filtering/sealing
etc. must be installed in the recorder enclosure.
8. Signal and supply voltage wiring should be kept separate from one another. Where this is impractical, shielded
cables should be used for the signal wiring. Where signal wiring is carrying (or could carry, under fault conditions)
hazadous voltages *, double insulation should be used.
9. If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment
might be impaired.
10. The battery is not individually replaceable. If the battery does not function, consult the manufacturer for service
information.
* A full definition of ‘Hazardous’Voltages appears under ‘Hazardous Live’in BS EN61010. Briefly, under normal
operating conditions Hazardous voltage levels are defined as >30V RMS (42.4V peak) or >60V dc.
!Refer to the Manual for instructions
Protective earth ground
This recorder for ac supply only
This recorder for dc supply only.
Risk of electric shock
This recorder for either ac or dc supply
Symbols used on the recorder labelling
One or more of the symbols below may appear on the recorder labelling.

MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 1
Page 1 - 1
HA250385
Issue 2 Mar 98
Section 1
INSTALLATION
LIST OF CONTENTS
Section Page
1.1 UNPACKING THE RECORDER ............................................. 1 - 2
1.2 INSTALLATION................................................................... 1 - 2
1.2.1 Mechanical installation...........................................................1 - 2
PANEL MOUNTING .........................................................1 - 2
PIPE MOUNTING.............................................................1 - 2
1.2.2 Electrical installation ..............................................................1 - 2
CONFIGURATION TRANSFER WIRING..............................1 - 2
SUPPLY VOLTAGE (MAINS) WIRING ..................................1 - 5
SIGNAL WIRING .............................................................1 - 6
1.3 CHANGING THE CHART.................................................... 1 - 7
1.4 CHANGING THE CARTRIDGE............................................. 1 - 8

HA250385
Issue 2 Mar 98
Section 1
Page 1 - 2
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 1 Installation
1.1 UNPACKING THE RECORDER
The recorder is despatched in a special pack designed to give adequate protection during transit. Should the outer box
show signs of damage, it should be opened immediately and the recorder examined. If there is evidence of damage,
the instrument should not be operated and the local representative contacted for instructions. After the recorder has
been removed from its packing, the packing should be examined to ensure that all accessories and documentation
have been removed. Once the recorder has been installed, any internal packing should be removed, and stored with
the external packing against future transport requirements.
1.2 INSTALLATION
1.2.1 Mechanical installation
Mechanical installation details are shown in figure 1.2.1
PANEL MOUNTING
The recorder is inserted through the panel aperture from the front of the panel. With the weight of the recorder sup-
ported, the recorder is secured using the two clamp brackets supplied , either at the top and bottom or at the right and
left sides of the recorder.
PIPE MOUNTING
Mounting brackets to suit a 50mm (2 inch) pipe are also available.
1.2.2 Electrical installation
Details for connecting the line supply and for signal wiring are shown in figure 1.2.2. A user supplied and mounted
switch for the supply voltage must be included with the installation.
Configuration transfer wiring
Wiring for the configuration port jack plug is as shown below. See section 4.11 for details of the configuration trans-
fer facility.
Inner: Terminal transmit
Outer: 0 Volts
Centre: Terminal receive
Jack plug wiring for transfer with host
computer/dumb terminal
Inner
Center
Outer
Inner
Center
Outer
Jack - to - jack wiring for transfer between record
e
Recorder 1 Recorder 2
Tran smit
Re c eiv e
0 Volts
Tran smit
Re c eiv e
0 Volts

MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 1
Page 1 - 3
HA250385
Issue 2 Mar 98
Figure 1.2.1 Mechanical installation
Bolt
Spring washer
Washer
Mounting Technique
Lift latch
to operate
148 mm
36 mm 2 mm
340 mm
Right side
Door opens
100˚
345 mm 12.5 mm
22.5
mm
Max. panel
thickness
= 25.4 mm
360 mm.
380 mm
Top view
Front view
Note:
Bezel and panel cutout are offset
from one another horizontally
345.5mm Wide x
340.5mm High
both mm
+ 2
– 0
13.60 inches Wide x
13.41 inches High
both in.
+ 0.08
– 0
Bezel/door outline
Panel cutout
Panel cutout
5˚ 30˚
Panel mounting angles
vertical

HA250385
Issue 2 Mar 98
Section 1
Page 1 - 4
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
1.2.2 ELECRICAL INSTALLATION (Cont.)
Figure 1.2.2 Electrical installation - overview
Notes:
1. Access to terminals is by opening the door, then undoing the securing screw to release the platen.
2. Option boards are shown as 1 = relays, 2 = serial communications, 3 = retransmission (analogue
output). In fact any option board can be fitted in any of the three positions. Up to three relay boards
can be fitted, if no other options are fitted.
Lift latch to
release door catch
Undo this screw
to release platen.
Chan 6 Chan 5 Chan4 Chan 3 Chan 2 Chan 1
ELN
Relay 6Relay 5
Relay 4Relay 3Relay 1 Relay 2
Cable clamp
for line pow er
wiring
Connect s upply voltage here
(90-264V 50/60Hz)
Outp ut1 Outp ut2 Outp ut 3 Outp ut4
TR AN SMI TTE RPO W ER SU P PL Y N º 1
TR AN SMI TTE RPO W ER SU P PLY N º 2
1
2
3
+
-
+
-
+
-
4
5
6
+
-
+
-
+
-
Char t
mot or
Con 9 Con 1 7 Con 8
Pen
ar m
Con 4
Arm
lif t
Print
head
Con 7
Con 12
Me mo ry
car d
Con 13
Con fig .
po rt
Con 3
Edg e
detect
Co n5
Inter nal
co mm s
'Mic ro' boa rd
Con 15
I/O a n d Po w er
Dis play
Co n1 0
Opt ion board 3
(Re -tr ans mis sion c onn ect io ns sho wn)
Opt ion bo ar d 2 ( Com ms co nne ct ion s s how n)
Opti on board 1 ( Rel ay connec tions shown)
Inp ut boa rd
Con 1 6
Input boar d
T XA TX B CM R XA R XB PU
NO COM NC N O CO M NCN O COM NC N O CO M NC N O COM NC N O COM NC
I V+ V- I V+ V- I V+ V- I V+ V-I V+ V- I V+ V-
I V+ V -
NO COM NC

MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 1
Page 1 - 5
HA250385
Issue 2 Mar 98
1.2.2 ELECTRICAL INSTALLATION (Cont.)
SUPPLY VOLTAGE (MAINS) WIRING
Figure 1.2.2b - Supply voltage wiring
The supply voltage cable is terminated at the terminal block located near the bottom right-hand corner of the case
(see figure 1.2.2a). Care should be taken to ensure that only the earth ground wire (green or green with a yellow
stripe) is connected to the Earth (left-most) terminal.
The fuse in the main recorder power supply is not user replacable. If fuse may have been blown, consult
manufacturer for service information.
Caution
Although the recorder is designed to work from any 50 or 60Hz voltage between 90 and 264V, the
transmitter power supply option is not. When sold with a new order, the transmitter power supply will
come with the correct links and fuse for the specified line voltage. When supplied as a retrofit option, or
if the supply voltage to the recorder changes, each transmitter power supply board must have its links
and fuse correctly selected, or the fuse may rupture when power is applied. Figure 1.2.2c gives details
of links and fuse types.
Figure 1.2.2c Transmitter Power Supply link/fuse details
Link for 115V ac
Remove for 230V ac
Link for 115V ac
Remove for 230V ac
Link for 230V ac
Remove for 115V ac
Fuse type
115V = 100mA
230V = 63mA
20 mm
Anti-surge
See figure 1.2.2a for board location
ELN
White
(Blue)
Black
(Brown)
Green
(Grn/Ylw)
Leave the earth ground lead longer than the others,
so it would be the last to become disconnected
should the cable be pulled out of the connector.

HA250385
Issue 2 Mar 98
Section 1
Page 1 - 6
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
SIGNAL WIRING
Figure 1.2.2d Input / output wiring
Note: For Serial communications and analogue output (retransmission) wiring, see the options manual.
For controller wiring details see the options manual and the controller handbook.
DCV (-10V<Vin<10V)
DC mV
Thermocouples
+ –
V+ V-
I
DC mA
Shunt
assembly
I
DCV
(–10 0 to +100V)
Attenuator
assembly
V+ V-I
+ –
3-wire resistance
thermom eter 2-wire resistance
thermometer Potentiometer
V+ V-IV+ V-IV+ V-I
Contact closure
(not channel 1)
Clos ur e mus t las t >50 0 msec
V+ V-I
V+ V-
+ –
Wire sizes:
Power: 0.5 mm
2
(min)
Signal: 2.5 mm
2
(max)
ComNO
NC
Coilenergization
controlled by
Events
Internal wiring
Relay output (shown in alarm / power off position)
Input wiring
Relay output wiring

MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 1
Page 1 - 7
HA250385
Issue 2 Mar 98
B
B
A
B
C
Chart
locked
Chart
unlocked
Fig 1.3a Open the recorder door Fig 1.3b Change chart
Op:Display
Op:Chart
↵for Fast Chart Off
↵to Align Chart
↵for Chart On
↵to Park
1.3 CHANGING THE CHART
Open the recorder door (fig 1.3a) and operate the cancel (x) key
to call the Op: Display page, then use the page key to call the
Op: Chart page
Operate the 'Enter' key twice to switch the chart drive off.
If there is currently no chart fitted, ignore the rest of this para-
graph. If there is a chart fitted, Lift the paper locking tab at the
center of the chart hub ('A' in figure 1.3b), and remove the old
chart by lifting it out from under the hold-down tabs ('B') and off
the hub.
Place the new chart under the hold-down tabs ('B' in figure 1.3b)
and onto the hub ('A') WITHOUT YET LOWERING THE LOCKING TAB.
Rotate the chart until the current as time printed on the chart is
just clockwise (i.e above) the time reference mark ('C' in the
figure). Lower the locking tab onto the chart.
Use the page key to call the '↵to align' page. Press repeatedly, or hold continuously the enter key to rotate the
chart counter-clockwise until the current time as printed on the chart is aligned with the time reference point.
Carry out the alignment procedure described in section 3.10 before returning the recorder to service.

HA250385
Issue 2 Mar 98
Section 1
Page 1 - 8
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
1.4 CHANGING THE CARTRIDGE
Note: Care should be taken to avoid cartridge ink contact with skin or clothing
Before changing the cartridge, switch the chart drive off as described in section 1.3 above. Then use the page key
twice, then the Enter key, to park the printhead.
Lift the printhead arm and pull the print cartridge down and away (figure 1.4). Fit the new cartridge and lower the
arm.
Use the page key repeatedly until the ↵for Chart On page appears. Operation of the enter key restarts tracing.
Note: If the arm is lifted during normal tracing, the pen drive will stop, but the chart will continue to
rotate. Subsequent lowering of the pen will set the pen to its normal rest position, before trending restarts.
When the printhead is lowered, the chart backs up 2-3 degrees and then comes forward to its original
position to ensure chart motor start-up time accuracy.
Figure 1.4 Changing the printhead
Lift arm
Remove cartridge

MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 2
Page 2 - 1
HA250385
Issue 2 Mar 98
Section 2
BASIC OPERATION
Section Page
2.1 POWER UP ....................................................................... 2 - 2
2.2 BACKGROUND DISPLAY .................................................... 2 - 2
2.3 ALARM INDICATION.......................................................... 2 - 3
2.4 KEY/DISPLAY FUNCTIONS ................................................. 2 - 3
2.4.1 Keys ..................................................................................2 - 3
ALARM ACKNOWLEDGE .................................................2 - 3
PAGE UP/DOWN ...........................................................2 - 3
CURSOR .........................................................................2 - 3
SCROLL UP / DOWN KEYS ..............................................2 - 4
CANCEL .........................................................................2 - 4
ENTER ............................................................................2 - 4
2.4.2 Indicators .............................................................................2 - 4
CHANNEL ALARMS .........................................................2 - 4
GLOBAL ALARM ..............................................................2 - 4
EDIT/HOLD .....................................................................2 - 4
2.5 CONFIGURATION EXAMPLE............................................... 2 - 5
2.5.1 Channel inputs/outputs ..........................................................2 - 5
2.5.2 Entering configuration ............................................................2 - 5
2.5.3 Channel configuration............................................................2 - 6
TEMPERATURE UNITS .......................................................2 - 7
LINEARIZATION TYPE .......................................................2 - 7
CJC TYPE ........................................................................2 - 7
SCALE PAGE ...................................................................2 - 7
VALUE FORMAT...............................................................2 - 7
INPUT BREAK RESPONSE .................................................2 - 8
OFFSET...........................................................................2 - 8
TAG ...............................................................................2 - 8
ALARM TYPE ...................................................................2 - 8
ALARM THRESHOLD (SETPOINT) .......................................2 - 9
ALARM JOBS...................................................................2 - 9
CHECKING THAT THE TRACE IS ON .................................2 - 10

HA250385
Issue 2 Mar 98
Section 2
Page 2 - 2
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 2 BASIC OPERATION
This section is designed to help you as a new user to understand the display and key operations. After the display and
key descriptions, an example configuration is given to show you how to set up an input channel to a known set of
parameters, so you can start recording your own traces with the minimum of effort. Only those items which are nec-
essary to get you going are explained; for full information about the Operator and Configuration display see sections
3 and 4 respectively.
2.1 POWER UP
At power up, a power-on message can be printed on the chart giving any of: time, date, and chart speed. Which (if
any) of these is required is set up in Chart Configuration (section 4.4) For example:-
09:15 29/02/96 12 Hour Chart
or
29/02/96 7 Day Chart
See sections 3.7 and 3.8 if a system error is indicated.
2.2 BACKGROUND DISPLAY
After initialization is complete, the display enters what is called a 'background' display, showing the value of a
channel in a format similar to that shown below. If this is the first switch-on, or if the recorder has not been
configured, the channel will be OFF.
Initially, the first channel on display is measuring channel 1. This remains on display for 5 seconds, after which
channel 2 appears. Channels 'scroll' in this manner until all input channels have been displayed, after which, if the
display group has been edited to include them (section 4.6.3) any option channels (derived variables, totalisers and
counters) will be scrolled through in the same manner. When all channels have been scrolled-through, input channel
1 is returned to.
01 1.2345 Units (Measuring channel)
D01 1.2345 Units (Derived (maths) channel)
T1 123456789 Units (Totaliser)
C1 12345678 Units (Counter)
By operating the page up/down keys, the display can be made to show alarm types or the channel identifier (tag)
instead of its current value. When either of these alternative displays are selected, the relevant channel is held (i.e.
the normal scrolling process is stopped).
01 586.03 Deg C
Furnace 1 temp A
Alarms: 1123
Alarm 1 on channel 1 and alarm
3 on channel 2 are active. For
details about alarms in general,
see section 4.5.2

MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 2
Page 2 - 3
HA250385
Issue 2 Mar 98
2.3 ALARM INDICATION
Each of the six input channels has its own LED indicator on the display. A further alarm icon situated to the left of
the display line indicates whenever there is an active alarm. The symbols flash until the alarm is acknowledged or
are steadily illuminated if the alarms are still active but have been acknowledged.
Alarms can be acknowledged at any time by using the Alarm acknowledge key (the left-most key of the eight).
Figure 2.4 shows the operator interface with the locations of the channel alarm indicators and the operating keys.
2.4 KEY/DISPLAY FUNCTIONS
Figure 2.4 Operator interface
2.4.1 Keys
Alarm acknowledge
This key acknowledges all active, unacknowledged alarms.
Page up/down
The Page up and down keys are used
a. to move round the Operator and Configuration top level menus
b. to move round sub menus (e.g. Operator Chart submenu - section 3.3)
Cursor
The cursor key can be used in background mode to stop the normal scrolling-through of channels' values i.e. to
display a single channel's value continuously (Channel hold) until the cursor key is operated again. The 'E' LED is
illuminated while channel hold is in operation.
In operator and configuration pages, the cursor key is used to move from field to field where there is more than one
item whose value can be changed. The cursor position is shown by the selected field's flashing on and off. For
example, the Log interval page (part of chart configuration) has both hours and minutes fields (shown underlined
below) which are moved between using the cursor.
Log Int 0hrs 0mins
Log Int 0hrs 0mins
123 456
E
Enter
key
Cancel
key
Scroll down
key
Scroll up
key
Cursor
key
Page down
key
Page up
key
Alarm
acknowledge
Channel
alarm
Channel alarms Channel alarms
Edit/Hold

HA250385
Issue 2 Mar 98
Section 2
Page 2 - 4
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
2.4.1 KEYS (Cont.)
Scroll up / down keys
This key is used
a. To scroll through text characters when entering text strings.
b. To enter numeric values.
c. To scroll through all menu items associated with a parameter (e.g. thermocouple types).
Cancel
This is used
a. To enter the Operator menus from the background display.
b. To cancel all changes made since the last operation of the 'Enter' key (described below).
c. To move you to the next highest menu level.
Enter
This is used
a. To return to the background display from the Op:Display page.
b. To initiate changes in the Operator menus (section 3)
c. To confirm changes made to configuration.
d. To enter sub menus (i.e. to go to the next lowest menu level).
2.4.2 Indicators
CHANNEL ALARMS
Each input channel has a dedicated LED indicator to show alarm status. The LED comes on (flashing) when any one
of the four alarms are triggered and stays on for a period determined by the type of alarm (section 4.5.2).
For latching alarms, the LED will stay illuminated until the cause (trigger) of the alarm has returned to a non-alarm
state AND the alarm has been acknowledged. If the alarm trigger is still active when the alarm is acknowledged, the
LED will stop flashing and remain steadily illuminated until the trigger goes inactive. If the alarm trigger has already
returned to a non-active state by the time the alarm is acknowledged, then the LED will extinguish immediately on
acknowledgement.
For non-latching alarms, the LED will be illuminated (flashing if unacknowledged) only until the trigger returns to a
non active state.
GLOBAL ALARM
This alarm symbol to the left of the display line becomes active if there is any alarm which is active (on input and
derived channels, totalizers etc.). Again the icon flashes if the alarm is unacknowledged.
EDIT/HOLD
During operation it is possible to hold one channel permanently on display (i.e. you can disable the normal scrolling-
through of all the items in the display group) by operating the cursor (right arrow) key while the required channel is
on display.
During configuration, the 'E' indicator illuminates if a change has been made to the configuration, which has not been
written to the recorder memory by operation of the 'Enter' key.

MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
Section 2
Page 2 - 5
HA250385
Issue 2 Mar 98
2.5 CONFIGURATION EXAMPLE
This section gives you a step-by-step guide to the basic configuration of a single channel (Nº2) to an imaginary set of
input conditions. If you are new to recorders, it is recommended that you first follow this example, and then modify
it to suit your own particular requirements. Section 4.5 gives details for each entry.
Notes
1. Because of the difficulties involved in representing items which flash on and off, the cursor position
is shown in this manual by an underline character.
2. The 'Page up' key is used in this description to scroll through page menus. The page down key can
also be used, but the scroll order is reversed and will therefore not match the description.
2.5.1 Channel inputs/outputs
Before starting to configure any part of the recorder, it is essential that you know exactly what you want it to do with
the input signal you are supplying it with. For our channel, a list of parameters can be written as follows:
Channel number 2
Input range 0 to 1000 degrees C
Input type Type J thermocouple
Input break response Drive high
Trace On
Tag Furnace1 tempA
Alarm Tripped immediately if temperature exceeds 780 degrees C. Remains active until acknowl-
edged. Log channels 1 to 6 on the chart on alarm.
2.5.2 Entering configuration
From the background display, operate the Cancel key
The data display area changes to the first of the operator pages.
Repeated operation of the Page up key scrolls through the top
level operator pages. (The page down key scrolls in the opposite
direction, but is omitted here for the sake of clarity.)
When the configuration page is reached, operate the
'Enter' key
01 OFF
Op: Display
Op:Chart
Op:Alarm Summary
Op:Channel 1 Alarm 1
Op: Action
Op:Clock
Op:System Error
Op:Configuration
Password 00000

HA250385
Issue 2 Mar 98
Section 2
Page 2 - 6
MULTIPOINT CIRCULAR-CHART RECORDER INSTALLATION AND OPERATION MANUAL
2.5.2 Entering Configuration (Cont.)
The password is set to '10' at the factory. The pass-
word can be edited in Instrument Configration.
To enter '10', press the cursor key three times, then the
up arrow and 'enter' keys.
2.5.3 Channel configuration
Operate the Page up key twice, to call the top level
channel configuration page.
Use the up arrow key to change the channel number to
'2' and operate the 'Enter' key.
Use the Enter key again to enter 'Range' configuration.
Operate the up arrow key to change 'Off' to 'T/C'
(Thermocouple). Note the other input type choices.
The 'E' LED illuminates to remind you that you have
made a change which has not yet been entered into the
data base.
Operate the Page up key to call the Range low page.
The low range is 0 as required, so operate the page key
again to call the Range High page
Enter the value 1000 as follows:
1. Operate the up arrow key until '1' appears in the
display.
2. Operate the cursor key, and repeat step 1, but stop
when '0' appears in the display.
3. Repeat step 2.
4. Repeat step 2.
5 Repeat step 2 but stop when the decimal point
appears.
Note: If you do not enter the decimal point, the re-
corder will interpret the entry as 100000
Password 00000
Password 00000
Password 00000
Password 00000
Password 00010
Conf: Instrument
Conf:Chart
Conf:Channel 1
Conf:Channel 2
Channel : Range
I/P Type Off
I/P type T/C
I/P Range Lo 0.00
I/P Range Hi 0.00
I/P Range Hi 1000.0
'E'
'E'
'E'
'E'