Eltek GS42AVE User manual

GS42AVE/GS44AVE connections
V
C
is a voltage input.
is a current input (with V to C for current range)
-is the -ve voltage
Ranges available:
0 - 100 mV 0-20 mA
0 - 1 VDC 4-20 mA
0 - 10 VDC
Each input is a differential input.
Inputs are not isolated.
Note; When renewing batteries and especially if transmitter is no longer operating ensure you allow
one minute with no batteries connected before installing new batteries. This is to ensure transmitter
performs a power-on reset.
9VDC
supply
Eltek TU1026 - User Instructions for GS42AVE/GS44AVE
Page 1 of 2
The is intended for use with any sensor where an averaged rather than
instantaneous value at the time of transmission is required. The averaging technique includes values
that can change during a transmission interval.
At the point of transmission the averaged value of the last 30 values, sampled every 10 seconds per
channel, is sent.
GS42AVE/GS44AVE
Connector 1
0
+
Connector 2
0 +
(GS42AVE and GS44AVE)
is external 9VDC -ve (e.g MP9U)
is external 9VDC +ve
(GS44AVE only)
( is No connection, is No connection)
Connector 2 is not available on the GS42AVE.
Configuration
socket. 3.5mm
“stereo" jack
socket. Not
fitted
Battery
supply fuse (1A).
SK4 - factory
use only
Red jumper J4
(default setting)
GS42AVE/GS44AVE interior components
External power supply connected
*For serial numbers prior to this, the 5V and 12V are swapped and the external supply link is not provided.
(Applicable to transmitters with serial numbers above 14889*)
GS42AVE GS44AVE

Setting and scaling GS42AVE/GS44AVE with sensors that provide a
voltage or current output
Setting up the GS42AVE/GS44AVE
Refer to Quick start guide to initially set up the RX250AL.
Note: GS42AVE/GS44AVE transmits the rolling average value from the connected sensor..
Many sensors are supplied with a voltage or current output. Recorded values can be scaled to provide
meaningful engineering units e,g l/minute. The scaling is stored within the transmitter.
Connect the GS42AVE/GS44AVE to the PC using the LCTX3 lead (and RS232/USB convertor if required).
Open , select > > , select
> . Note the
Window.
Click > >
(ensure correct COM serial port assigned and follow on screen instructions)
Observe you are now in a new window: , with the upper
pane about TX setup.
TX Channels A, B, or A, B, C or D can be set as follows;
In channel select > > from the drop down list
In the , select the appropriate hardware range, e.g.
from the drop down list.
(Do not use Helper!)
Let’s assume that the connected sensor provides
0-10VDC for 0-20%
Repeat as appropriate for other channels.
You can now close and follow the instructions to end the routine by clicking
> and close the Window.
Contact Wizard GenII Setup/Transmitter Setup Next Next Modify the
Transmitter setup based on the current Squirrel set up (Normal) Next block
transferring
Squirrel Channel to Transmitter Channel Assignments Transmitter Setup OK/Connect
Squirrel Channel to Transmitter Channel
(EU Range) ….. Set channel Edit Eu Range
EU Range Selector : Channel A Voltage (0.000
to 10.000V)
Transmitter Connections
Sending to Squirrel OK
EU range setting procedure - worked example:
A,
CO
and the manufacturer’s specification for the sensor states that it is accurate to a resolution of 1 decimal
place.
The of the range is 0, since our %CO range starts at 0.
The value we enter for the EU Range will be scaled down afterwards by factors of 10 using
the in order to create the correct resolution for the range. It must always be a whole number.
Therefore, in order to create a range accurate to 1 decimal place, we need to enter a of 200
(20 plus 1 zero) and a of 1. This will then be scaled down to 0.0 to 20.0.
When the three values are entered, the of the EU Range will show a range of 0.0 to 20.0
%CO - the EU range we want.
2
2
2
Minimum
Maximum
DP Value
Maximum
DP Position
Sample
Page 2 of 2User Instructions TU1026 03/02/15)