Servomex 1100A User Manual

5.24
TABLE 5.2 HEATER RESISTANCE
Transducer
Model
Terminal
Number
PSU TB-A
Heater
Voltage
Heater
Resistance
(ohms)
Heater
Current
(approx.)
1131A
1131B
1131C
1132/701
1132/000
1133
6
5
5
6
7
5
110V
55V
55V
110V
220V
55V
560+
5%
120+
5%
120+
5%
201+
10%
814+
10%
96+
10%
200mA
450mA
450mA
550mA
270mA
570mA
Note: Heater voltage measured relative to TB-A-4.
See Section 5.3.5 for details on the replacement of the heater elements in the Transducer units.
5.2.4 Keyboard Encoder Test
An abbreviated test of the keyboard encoder may be made by pressing the keys '5'and 'SET' in
turn and observing the logic state of pins 2, 4, 6 and 10 of IC5 on PCB 01101902 on the front door
of the Control unit.
In Tables 5.3 and 5.4 below:
L means a voltage between 0 and 0.7V
H means a voltage between 2.4 and 5.1V
with respect to ground.
TABLE 5.3 KEY BOARD ENCODER TEST
IC5 Pin No.
KEY 2 4 6 10
5
SET
H
L
L
H
L
H
H
L
If this test fails, it indicates that the encoder is faulty and pcb 01101902 should be replaced.
If the fault persists check the operation of the individual keys using Table 5.4.

Servomex 1100A Specifications

General

Brand	Servomex
Model	1100A
Category	Measuring Instruments
Language	English