Issue 1, Apr-98 Applies to software version 1.0
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1
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HA026277
2108
i
Temperature/Process Indicator and Alarm Unit
Installing and Operating Instructions
Thank you for choosing the 2108i indicator and alarm unit. This
indicator may be supplied in three hardware variants:
1. Indicator only - providing accurate measurement and display of
temperature and other process variables. In this case the alarm
relays are not fitted .
2. Indicator plus one alarm relay
3. Indicator plus two alarm relays
OP2
OP1
2108
i
ACK/
RESET
ε
To install the indicator
Please read the safety information on pages 7 & 8 before
proceeding.
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.
Unplugging the indicator
The indicator can be unplugged 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 IP54 sealing.
Recommended minimum
spacing of indicators
(Not to scale)
38 mm
(1.5 in)
38 mm
(1.5 in)
D
IMENSIONS
A
ND
I
NSTALLATION
Relay Ratings
2A, 264Vac resistive
Wire Sizes
The screw terminals accept wire sizes from 0.5 to 1.5 mm
(16 to
22 AWG), Hinged covers prevent hands or metal making
accidental contact with live wires. The rear terminals screws
should be tightened to 0.4Nm (3.5lb in).
E
LECTRICAL
C
ONNECTIONS
Alarm
acknowledge
/reset
Pt100
Providing outputs for machine
and product protection.
A peel-off label set , illustrated below, is supplied with the indicator.
If a unit label is required, a convenient position is to fix it to the top
right hand corner of the display, as shown
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.x10
mmHg
Kg/cm
2
gal/min
rev/min
mile/h
EUROTHERM
Amps
D
ISPLAY
U
NITS
L
ABEL
S
ET
Identification Labels
The indicator is identified by a label fixed to the top of the case
which gives the serial number and ordering code. The ordering code
defines the configuration of your particular indicator. Details of the
code are given on page 7.
48 mm
(1.89 in)
Neutral
Relay Output 2
Line
Sensor inputs
mA
Model 2108i
T/C
2.49
Ω
AC
AA
AB
VI
V-
V+
L
N
LA
LC LB
3A
3B
3C
85-264Vac
Ground
Relay Output 1
Link for
Keylock
(lead length
must not
exceed 1
metre)
PV
+
-
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)
Panel retaining clips (both sides)
96 mm (3.78 in)
103 mm (4.01 in)
*
*
This indicator meets the European directives on safety and
EMC
ENG
