
Specifications liable to change without prior warning
EL-1-12BIT
Issue 2
March/1999
M.C.
Applies to EL-1-12BIT/2
LASCAR ELECTRONICS LTD.
MODULE HOUSE, WHITEPARISH,
WILTSHIRE. SP5 2SJ
TEL: ++44 (1794) 884567
LASCAR ELECTRONICS INC.
PO BOX 8204, SAVANNAH,
GA 31412
TEL: ++1 (912) 234 2048
UK
USA
F
AX: ++44 (1794) 884616
FAX: ++1 (912) 234 2049
LINK FUNCTIONS
Lk1:
Lk2&Lk3:
PINFUNCTIONS
TxD,RxD:
SW:
BATTERYREPLACEMENT
Only use AA 3.6V lithium. The list below is not exhaustive. Check with supplier that the battery you are ordering is 'press fit' and is not fitted with
soldertags. Takecaretoconnectcorrectly. DONOTPRESSONLCDWHENINSERTINGBATTERY.
WARNING: Handlelithiumbatteriescarefully-observewarningsonbatterycasing. Disposeofinaccordancewithlocalregulations.
Whendaisy-chainingEasyLogModules,removetheLk1jumpersfromallmodulesexcept one.
Fitthesejumpersasshowninthetablebelow.
200mV
2V
20V
4-20mA
Temperature(LowRange)
Temperature(HighRange)
L 2open,L 3Open
L 2closed,L 3open
L 2closed,L 3open
L 2open,L 3closed
L 2open,L 3open
L 2open,L 3open
k
k
k
k
k
k
k
k
k
k
k
k
SAFT
LS3
n/a
SONNENSCHEIN
TADIRAN
SL-750/S
AA/S
1107501100
1551-02-210-000
MeasurementRange Jumper
LinkSetting
Nopinsfitted.InputandoutputconnectionsforInfra-Redcommunications,e.g.:connecttoaPANEL-IRmodule.
Switchinput,normallypulledhigh. ConnectmomentarilytoV-totakeareadinginOne-Shot
modeortostartloggingwhenconfiguredforPush-to-StartinEL-WIN.
Testpin.DoNotUse.
Externalpowersupplyconnections. ReadImportantNotebelowpriortouse.
Externalsupplyvoltagerange 3to3.6Vdc.Externalpowersupplymustbefloatingwith
respecttothesignaltobemeasured.
NormallyatV-,thesepinsgohighwhentheirrespectivealarmlevelshavebeenreached
orexceeded.
MeasurementInputs,extensionofscrewterminalblockconnections.
CurrentLoopconnection,extensionofscrewterminalblockconnections.
AV+:
V-,V+:
HA,LA
V
Iin,Iout:
,V
:
IN-
IN+
AlwaysremovetheLithiumbatteryfromthemodule
Failuretodosomaycausethebatterytoexplode.
connectinganexternalpowersupplytothemodule.
IMPORTANTNOTE-
BEFORE
MAXELL
ER3STC
n/a
MANUFACTURER
PARTNUMBER
MANUFACTURER'SORDERCODE
APPLICATIONS
VOLTAGE
200mV DC connection
(Lk2 and Lk3 open)
Vin+ (W)
I
out (W)
I
in (R)
Vin- (R)
2V DC connection
(Lk2 closed, Lk3 open)
Vin+ (W)
I
out (W)
I
in (R)
Vin- (R)
20V DC connection
(Lk2 closed, Lk3 open)
Vin+ (W)
I
out (W)
I
in (R)
Vin- (R)
CURRENT
200mA DC connection
Use 200mV range with
annunciators set to mA.
(Lk2 and Lk3 open)
Vin+ (W)
I
out (W)
I
in (R)
Vin- (R)
4-20mA Indication
Use 4-20mA indication range
(default calibration 0-1000)
(Lk2 open, Lk3 closed)
Vin+ (W)
I
out (W)
I
in (R)
Vin- (R)
For higher ranges, use 200mV
range and R=
0.2
where = 2A or 20A fsd.
Module will require calibration.
(Lk2 and Lk3 open)
I
I
R
1R
Vin+ (W)
I
out (W)
I
in (R)
Vin- (R)
TEMPERATURE
2-wire Pt100 connection
Vin+ (W)
I
out (W)
I
in (R)
Vin- (R)
red
white
3-wire Pt100 connection
(Lk2 and Lk3 open)
Vin+ (W)
I
out (W)
I
in (R)
Vin- (R)
red
white
white
4-wire Pt100 connection
Vin+ (W)
I
out (W)
I
in (R)
Vin- (R)
red
red
white
white
NOTE-
converttheparametertobemeasuredintoalinearvoltageorcurrentandapplythissignaltoasuitablyscaledEL-1-12BITmodule.
Measurement signals must always be isolated from the communications signals.
Itispossibletomeasureparametersotherthanthoseoutlinedbelow. Useanappropriatesensorandconditioningcircuitto
Rear Pin Header
TxD
SW
V-
HA
V
IN-
I
in
RxD
AV+
V+
LA
V
IN+
I
out
RS