GDS XDI-XDIwin-15/30J User manual

TECHNOLOGIES
XDI-XDIwin – 15/30J
FLAMMABLE SENSOR
Technical Sheet ref C893Sv.14
198D1C
Power Supply
15 to 30Vdc 24v nominal
Outputs
3 wire 4~20mA / 4 wire CANbus
Relays Low alarm SPCO
High alarm SPCO 0-5A @ 30Vdc
Fault alarm SPCO
Inhibit option during servicing
Logging Intervals - variable time
Roll over/stop
Storage - 2,880 readings
Requires RS232 lead – see 8
PC or laptop (dedicated)
Hyperterminal (download from GDS website)
Set up procedure:
New sensors are supplied ready to connect to the system.
The following procedure is for full set up and where the sensor cell has
been replaced - only sections 5, 6, 7, 9 and 11 need to be carried out.
Voltage measurements are made wrt AG unless otherwise specified.
1. Insert jumpers J20 and J6 position SO for 4-20mA source output.
2. Turn sensor voltage potentiometer anti-clockwise (minimum
voltage).
3. Connect sensor to J2 terminal W-white Y-yellow P-pink.
4. Connect 24V + and 0V to JP10, short the 4~20mA terminal by
inserting test link at J9.
5. Measure the sensor voltage at SV and adjust by turning sensor
volts pot for the correct reading.
(standard sensor CAT300 = 2Vdc.) DO NOT EXCEED THE
REQUIRED VOLTAGE OTHERWISE PERMANENT DAMAGE
WILL OCCUR. See sensor cell supply table.
6. Rotate 20mA pot fully anti-clockwise (minimum span.)
7. When in clean air the sensor bridge is zeroed by adjusting zero
pot until the dual colour LED D1 is off.
8. Connect PC hyper terminal using Connect RS232 micro USB or
for earlier models Combi adapter (part no. 160-510) and lead
(part no. 160-515) at 4800 baud connected to J3. Ensure jumper
J29 is fitted before programming and initialise the sensor using (C)
calibration mode, then shift + ($) command from the keyboard.
9. Using a digital mV meter measure across test pins TP8/9 and
adjust 4mA pot for 4mA (zero) = 4mV
10. Then press (Z) on the PC to zero the reading.
11. Apply a known test gas to the sensor (56% LEL = 2.5% vol
methane) for 1 minute at a flow rate of 1 litre to give a 13mA =
13mV across test pins TP8/9, adjust 20mA pot for correct mV
reading.
12. When using a PC press (S) to enter span mode and using (H) or (L)
adjust the reading to 56% LEL.
13. Press (space) to exit span and then (X) to exit the calibration mode.
An example of continuous data output to the PC from a Flammable
sensor is shown below and is the format for all gas types.
O, Hand L represent the Over Range High and Low alarms
respectively.
D indicates if a duplicate address is
detected
Findicates a fault present
Ishows that this sensor has its alarms
inhibited
under the OHLthe ^ ^ v represent the direction of the alarms. L
is falling and Hand Oare rising. A(*) under the letter(s) OHLDFI
represents a detected state so in this example the sensor would be in
high alarm and a fault present.
‘Gas val 35.6’ represents the value of the gas present at the sensor
head. Pressing (R) on the PC causes a reset to occur. Gas type with
address and serial number are then output to the PC together with
alarms and calibration date.
A full command list via PC is available by pressing the letter (P) which
will relist on the PC.
14. Connect the sensor to a Combi alarm panel and ensure that it
reports in correctly.
Note:- Fit the end of line (EOL) link J1 if the sensor is to be installed
at the end of the sensor cable.
15. If front panel display board is fitted via connector J5 and U12
adjust contrast for LCD contrast.
16. Remove J9 test link for normal operation.
17. Insert link J12 to enable the bridge fault detection.
(4-20mA output falls to 2mA in fault).
18. Ensure J29 address link is removed (this is only used when
changing address from a Panel).
Flam %LEL
OHLDFI
^^v
-*--*-Gas val = 35.6
Command Use
A = Set CAN address Sets the CAN address
G = Select gas type Select the gas type from a list
Z = Zero Press when no gas on sensor to give zero
S = Span Use when calibration gas applied,
H and L change reading
D = Enter calibration date Enter the calibration date
Y = Toggle auto zero Auto zero is ON or OFF, small drift is cleared
H = Set high alarm Sets the high alarm threshold
L = Set low alarm Sets the low alarm threshold
O = Set over range alarm Sets the over range alarm threshold
P = List command List these commands on screen
X = Exit calibration mode Exit this PC mode
$ = Initialise this sensor Use on new PCB to set gas type to Flam
U = Alarm direction Sets rising or falling alarms
R = Range Allows a change in maximum value
N = Decimal points Toggles between 1 and 2 decimal places
E = Edit user gas text Choose gas description
B = Toggle deadband Deadband of 2.5% can be on or off
F = Toggle fault Input External fault input contact can be disabled
# = Normally energised Low /high alarm relays and fault relay can be
made normally energised
V= View gas log From current log, display how many historical
readings to display, up to 2880
% = Clear gas log Set all 2880 log readings to 0.00
I = Log interval log Choose how many seconds between each
reading and whether the log will roll over or
stop at 2880 (60 second interval and 2880
readings = 48 hours)
www.gds–technologies.co.uk

TECHNOLOGIES
Fig.1
Fig.2
Fig.3
The Combi sensors which have an LCD display fitted also incorporate 3
reed switches which can be activated using external magnets through the
glass window of the flameproof XDIwin enclosure. These magnets do
not act instantly and have to be in close proximity to L, M and
R on the front display for a few seconds to activate a software
setup function.
The left magnet enters the Auto zero ON or OFF menu.
This allows small drift changes in the sensor to be compensated for
but is not operational when the sensor readings are greater than 5%
of full scale. Therefore auto zero is inactive when a larger gas reading
is present. When the remove magnets message appears, move the left
magnet away and then the display shows if auto zero is ON or OFF. The
left magnet puts auto zero ON and the right magnet turns it OFF. With
no magnets present, the display will return to normal after a few seconds
timeout.
The right magnet allows the CAN address of the sensor to be
changed. When the ADDRESS menu is displayed with a prompt to
remove the magnet, and then the display shows the address and that the
right magnet decreases it whilst the left magnet will increase it. This is then
stored in internal non volatile memory and the display will automatically
revert to normal operation.
The centre magnet is used to inhibit the sensor. As with the left and right
magnet functions the display requests that you remove the magnet and
then the state of the inhibit appears on the LCD. The left magnet then puts
the sensor into inhibit whilst the right magnet removes it. An amber LED on
the front panel under the LCD flashes when the sensor is inhibited. When
all magnets are removed, the display will revert to normal operation.
The left and right magnets together allow the calibration menu
to be used.
Removing both magnets as instructed on the LCD presents the first part of
this multi menu which is ZERO. With no gas present use the left magnet
to increase the reading and the right magnet to decrease to achieve a
zero reading on the display. A timer is displayed on the LCD and when
this reaches 0, the next menu is displayed. This timer is 15 seconds
approximately and is reset back each time a magnet is near. Waiting till
timeout is acceptable but this timeout can be speeded up by placing a
magnet near to the centre position.
SPAN is the next part of the menu and gas should be applied to the
sensor at this time.
The left magnet increases the gain and the right magnet reduces gain. The
actual sensor value can be seen on the display to rise or fall respectively.
LOW ALARM is the next menu and left and right magnets increase and
decrease this value.
HIGH ALARM is next followed by OVER RANGE alarm.
The direction of the alarms is displayed as ^ for rising and v for falling but
these can be changed using left and right magnets together.
Sensor cell supply table
CAT300A 2v/300mA
CAT170A 2v/175mA
SEM-1 4v/170mA
GDS PRIME 4v/70mA
CAT335C 2.5v/335mA
THE300A 2v/300mA
SS10 2v/175mA
CAT335A 2.5v/335mA
CAT335B 2.5v/335mA
CAT100A 2v/100mA
CAT165 2.2v/165mA
EOL
CAN
4-20
MPU
FAULT
TP1
OV
TP11
TP9
TP5
TP8
TP10
198M1C
ISS M
TP7
ZERO
ZERO
TP12
DISP
MPU active LED
(Flashing)
Fault LED
Sens V Te st Point
TP7 + TP12 Sensor cell input Sensor Volts
(RV3)
Zero
(RV2)
Span
(RV1)
4mA
(RV4)
Sensor Zeroing LEDs
CAN Transmitting LED
4-20mA SInk/Source
4-20mA Test
Jumper
End-of-line Jumper
Relay/Win Ribbon
LCD Contrast
Win Only
RS232
PC Data In/Out
Win Data Ribbon Cable
4-20op Test Points
FIELD TERMINALS
HI LO
24V Can+ Can- OV 4-20mA
24V Hi Lo OV 4-20
mA
PYW
Control Unit
CAN 1 or 2
Sensor
Addressable
+24
Hi
Lo
0v
4~20mA
+24
Hi
Lo
0v
Control Unit
4~20mA Input
Sensor
3-Wire Direct
4~20mA Signal
+24
Hi
Lo
0v
4~20mA
+24
Sig
0v
EOL
T
FAULT
MPU
SK
SE
204M1C
ISS M
CONTRAST
Fault LED
Gas Type Header
Sensor cell input
20mA
Span
(RV2)
4mA
Zero
(RV1)
Sensor 4-20mA Routing Configurations
(see diagram)
CAN Transmitting LED
4-20mA Test
Jumper
Relay/Win Ribbon
LCD Contrast
Win Only
End-of-line Jumper
+24V Test Point
(w.r.t 0V)
+24V
RS232
PC Data In/Out
Win Data Ribbon Cable
4-20mA Test Pins
4-20mA Sink Source
External 4-20mA Input
(eg. Infrared)
+24V O/Pt
(eg. Infrared)
FIELD TERMINALS
HI LO
24V Can+ Can- OV 4-20mA
24V Hi Lo OV 4-20
mA
PYW
Mainboad to Sensor wiring Sensor Jumper configuration
Control Unit
CAN 1 or 2
Sensor
Addressable
+24
Hi
Lo
0v
4~20mA
4~20 IN
SO
SK
+24
Hi
Lo
0v
Control Unit
4~20mA Input
Sensor
3-Wire Direct
4~20mA Signal
+24
Hi
Lo
0v
4~20mA
+24
Sig
0v
Control Unit
4~20mA Input
Sensor
2-Wire Direct
4~20mA Signal
+24
Hi
Lo
0v
4~20mA
+24
Sig
0v
Control Unit
CAN 1 or 2
Sensor
Addressable 4~20mA Input
+24
Hi
Lo
0v
4~20mA
+24
Hi
Lo
0v
4~20 IN
SO
SK
4~20 IN
SO
SK
4~20 IN
SO
SK
ange
t magnets
Using magnets (set up)
Display
Contrast
Field terminals
Relay PCB
Connector
Display PCB
Connector
Test
Test Pins
24v DC
OV
FLT
OUT
IN
AG
Zero LED
ADDR
4mA
20mA
Sensor
Zero
Sensor Volts
Comms
Port
EOL
Vo
This document is not contractual and the equipment specification may be modified at any time without prior notice.
E: sales@gds–technologies.co.uk T: [phone]
GDS TECHNOLOGIES LTD |FUSION POINT |ASH LANE |GARFORTH |LEEDS |LS25 2GA |UK www.gds–technologies.co.uk
Technical Sheet ref C893Sv.14
198D1C