Eurotherm 2408i User Guide

2408 i Indicator and Alarm Unit
1 User Guide
Thank you for choosing the 2408i panel mounted indicator. It will provide accurate measurement and display of
temperature and other process variables. A modular build accepts a wide range of plug-in modules allowing: up
to four alarm outputs, two process variable (PV) inputs, direct strain gauge/pressure sensor measurements, custom
linearisation, analogue retransmission, remote setpoint (SP) input and digital communications.
The indicator is supplied configured in accordance with the order code. The order code and instrument serial
number is shown on a label fixed to the top of the case, and this can be checked against the order code given in
section 3 of these instructions.
1.1 CONTENTS OF PACKAGE
1. A peel-off label set - a convenient position is to fix a label to the top right of
the display.
2. A 2.49Ω resistor used as the load resistor for mA inputs
3. Two panel retaining clips
1.2 DIMENSIONS AND INSTALLATION
1.2.1 To Install the Indicator
Please read the safety information in section 4 before proceeding.
The indicator is intended to be mounted on a panel within an enclosure such as a control cubicle.
1. Prepare the panel cut-out to the size shown.
2. Insert the indicator through the cut-out.
3. Spring the panel retaining clips into place. Secure the indicator in position by holding it level and pushing both retaining clips forward.
4. Peel off the plastic film protecting the front of the indicator.
1.2.2 Removing The Indicator From The Sleeve
The indicator can be removed from its sleeve by easing the latching ears outwards and pulling it
forward out of the sleeve. When plugging the indicator back into its sleeve, ensure that the
latching ears click into place to maintain the moisture sealing protection.
This indicator meets the European directives on safety and EMC
,
96 mm (3.78 in)
Panel cut-out
92 X 45 mm
-0.0 +0.8 -0.0 +0.6
3.62 X 1.77 in
0.0 +0.03 -0.0 +0.02
Latching ears (top & bottom)
48 mm
(1.89 in)
E
U
R
O
T
H
E
R
M

ACK/
RESET
2408 I
AL2
AL1 AL3
AL4
Panel retaining clips
150mm (4.01in)
Recommended minimum
spacing of indicators
(Not to scale)
38mm (1.5in)
38mm (1.5in)
o
C
o
F K kPa V mV
m/s cm/s l/h mWG A mA
x10 1x10 l/min T/h % %RH
p.s.i bar mbar mPas %pH pH
p.s.i.x1
0
mmHg Kg/cm
2
gal/min rev/min mile/h
Amps
ENG
!

Eurotherm 2408i Specifications

Power

supply voltage	100 to 240Vac -15%+10% OR 24 Vdc or ac 15%+20%
power consumption	15W max
transmitter supply rating	20mA, 24Vdc

Operating Environment

operating ambient temperature	0 to 55oC
operating ambient humidity	5 to 95% RH non-condensing
storage temperature	-10 to +70oC

Inputs

low level range	-100 to +100mV
high level range	0-20mA or 0-10Vdc
input impedance for mV inputs	>10MΩ

Digital Inputs and Outputs

digital inputs switching voltage/current	24Vdc/20mA nominal
relay rating	2A, 264Vac resistive
triple logic output	8mA, 12Vdc per channel

Alarms

number of alarms	Four
alarm delay	OFF to 999.9 secs
alarm types	High, low, deviation high, deviation low, deviation band, rate of change in units/sec, rate of change in units/min, new alarm status

Weight and Dimensions

dimensions	96W x 48H x 150D
weight	400g max
panel sealing	IP65