4
4 Block diagram
Block diagram
1
O/P
2
I/P
470K
R15
470K
R16
10R
3
I/P
470K
4
COM
470K
R18
5
COM
6
I/P
470K
470K
10R
7
I/P
470K
8
O/P
470K
R22
0.1 µF
0.1 µF
9
O/P
10
I/P
100K
470K
11
I/P
12
I/P
0.1 µF
10R
J1
100K
100K
100K
10K
100K
50K
50K
+12
-12
16
O/P
15
I/P
14
I/P
13
I/P
(preset)
OFFSET
SCALE
cw to reduce gain
19
O/P
18
R/R
17
I/P
100K
100K
47K
10R
0.1 µF
470K
2 M
Ω
100K
RAMP RATE
cw to
increase rate
10 µF
10 µF
23
240
22
110
21
V+
20
V-
24
L
0.1 µF
0.1 µF
130 V
COIL
110 V
COIL
F1 100 mA
+12 V
-12 V
SQ1 -24 V
SQ2 +24 V
ON LAMP
CHANNEL 1 DIFFERENTIAL AMPLIFIER
CHANNEL 2 DIFFERENTIAL AMPLIFIER
CHANNEL 3 SCALE/OFFSET (preset)
CHANNEL 4 SCALE/OFFSET
CHANNEL 5 RAMP RATE
DANGER
ELECTRIC SHOCK RISK
Mechanical dimensions
470K
Z2
Z1
100K
4M7
0.1 µF
100R
J2
100K
100K
100K
10K
100K
50K
50K
+12
-12
cw for -ve
OFFSET
SCALE
cw to reduce gain
IC2
100K
close to preset
integrator
input to
integrator
output
OFFSET PRESET
internal reference
offset
10K
external
reference
pot
AC
POWER IN
110 V or
230 V
1 µF
R1
R2
for R1=R3
and R2=R4
High gain differential amplifier
V
out
R3
R4
V1
V2
CHANNEL 1 only
47K
470K
2.2 µF
100 nF
If the system is unstable and slowly oscillates, try adding another 1 µF at the
J1
position (CHANNEL 3).
The bipolar capacitor sets the integrator time constant.
If required, fit Zeners to clamp the output swing of the final stage -
Z1 Z2
positions (CHANNEL 3).
Options:
R20
R17
R19
R21
R24
R23
ANTI-CLOCKWISE
MID-WAY
CLOCKWISE
Terminals 1 - 6
Terminals 7 - 12
Terminals 19 - 24
Terminals 13 - 18
OFFSET
SCALE
RAMP
RATE
CH3 CH4
CH5
ON
90 mm
86 mm
5 mm
5 mm
Fixing screws: M4 x 20 mm
J1
J2
B
C
D
A
T9
CH4 DIFF
GAIN K1
T10
INTEGRATOR
PRESET INPUT
K2
T8
T7
CH5
RAMP RATE
REFERENCE
FEEDBACK
T11
T14
T15
E
G
F
A
C
H
D
J
OUTPUT
CH3 SCALE
CLOSE TO
PRESET
INTEGRATOR
C
D
A
F
E
integrator
preset
input
(+/- 10 V)
G
differential output
feedback
input
+/- 10 V
H
J
B
Z1
Z2
1
O/P
2
I/P
470K
R15
470K
R16
10R
3
I/P
470K
4
COM
470K
R18
5
COM
6
I/P
470K
470K
10R
7
I/P
470K
8
O/P
470K
R22
0.1 µF
0.1 µF
9
O/P
10
I/P
100K
470K
11
I/P
12
I/P
0.1 µF
10R
J1
100K
100K
100K
10K
100K
50K
50K
+12
-12
16
O/P
15
I/P
14
I/P
13
I/P
(preset)
OFFSET
SCALE
cw to reduce gain
19
O/P
18
R/R
17
I/P
100K
100K
47K
10R
0.1 µF
470K
2 M
Ω
100K
RAMP RATE
cw to
increase rate
10 µF
10 µF
23
240
22
110
21
V+
20
V-
24
L
0.1 µF
0.1 µF
130 V
COIL
110 V
COIL
F1 100 mA
+12 V
-12 V
SQ1 -24 V
SQ2 +24 V
ON LAMP
CHANNEL 1 DIFFERENTIAL AMPLIFIER
CHANNEL 2 DIFFERENTIAL AMPLIFIER
CHANNEL 3 SCALE/OFFSET (preset)
CHANNEL 4 SCALE/OFFSET
CHANNEL 5 RAMP RATE
DANGER
ELECTRIC SHOCK RISK
Mechanical dimensions
470K
Z2
Z1
100K
4M7
0.1 µF
100R
J2
100K
100K
100K
10K
100K
50K
50K
+12
-12
cw for -ve
OFFSET
SCALE
cw to reduce gain
IC2
100K
close to preset
integrator
input to
integrator
output
OFFSET PRESET
internal reference
offset
10K
external
reference
pot
AC
POWER IN
110 V or
230 V
1 µF
R1
R2
for R1=R3
and R2=R4
High gain differential amplifier
V
out
R3
R4
V1
V2
CHANNEL 1 only
47K
470K
2.2 µF
100 nF
If the system is unstable and slowly oscillates, try adding another 1 µF at the
J1
position (CHANNEL 3).
The bipolar capacitor sets the integrator time constant.
If required, fit Zeners to clamp the output swing of the final stage -
Z1 Z2
positions (CHANNEL 3).
Options:
R20
R17
R19
R21
R24
R23
ANTI-CLOCKWISE
MID-WAY
CLOCKWISE
Terminals 1 - 6
Terminals 7 - 12
Terminals 19 - 24
Terminals 13 - 18
OFFSET
SCALE
RAMP
RATE
CH3 CH4
CH5
ON
90 mm
86 mm
5 mm
5 mm
Fixing screws: M4 x 20 mm
J1
J2
B
C
D
A
T9
CH4 DIFF
GAIN K1
T10
INTEGRATOR
PRESET INPUT
K2
T8
T7
CH5
RAMP RATE
REFERENCE
FEEDBACK
T11
T14
T15
E
G
F
A
C
H
D
J
OUTPUT
CH3 SCALE
CLOSE TO
PRESET
INTEGRATOR
C
D
A
F
E
integrator
preset
input
(+/- 10 V)
G
differential output
feedback
input
+/- 10 V
H
J
B
Z1
Z2
©2022, Sprint Electric. All rights reserved.
We accept no liability whatsoever for the installation,
fi tness for purpose or application of this product.
It is the user’s responsibility to ensure the unit is
correctly used and installed.
This leafl et is protected by copyright. No part of it may
be stored or reproduced in any form without written
permission from Sprint Electric.
The information in this publication was correct at the
time of going to print.
We reserve the right to modify or improve the product
without notifi cation.
The contents of this manual shall not become part of
or modify any prior existing agreement, commitment,
or relationship. The sales contract contains the entire
obligation of Sprint Electric. The warranty contained in
the contract between the parties is the sole warranty of
Sprint Electric. Any statements contained herein do not
create new warranties or modify the existing warranty.
We will be under no liability for any defect arising from
fair wear and tear, negligence, wilful damage, misuse,
abnormal working conditions, failure to follow the
manufacturer’s instructions, unauthorised alteration or
repair of hardware, unauthorised or accidental alteration
of software or confi guration, lost profi ts, commercial
loss, economic loss, or loss arising from personal injury.
We may, at our discretion, raise a charge for any faults
repaired that fall outside the warranty cover.
Sprint Electric Limited, Peregrine House, Ford Lane, Ford, Arundel BN18 0DF, U.K.
Tel: +44 (0)1243 558080 Fax:+44 (0)1243 558099 Email: [email protected]
www.sprint-electric.com